US20050222607A1 - Snare - Google Patents
Snare Download PDFInfo
- Publication number
- US20050222607A1 US20050222607A1 US11/125,578 US12557805A US2005222607A1 US 20050222607 A1 US20050222607 A1 US 20050222607A1 US 12557805 A US12557805 A US 12557805A US 2005222607 A1 US2005222607 A1 US 2005222607A1
- Authority
- US
- United States
- Prior art keywords
- snare
- elongate member
- coil
- end portion
- distal end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00526—Methods of manufacturing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
- A61B2017/2212—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions having a closed distal end, e.g. a loop
Definitions
- the present invention relates generally to intravascular snare devices and systems and more particularly, devices which can be used to capture embolic material or thrombi found in blood vessels.
- the intravascular snare device and system of the present invention is particularly useful when performing balloon angioplasty, stenting procedures, laser angioplasty or atherectomy in critical vessels where the release of embolic debris into the bloodstream can occlude the flow of oxygenated blood to the brain or other vital organs, which can cause devastating consequences to the patient.
- the snare device is also suited for the removal of clots adhering to vessel walls. While the snare device and system of the present invention is particularly useful in the cerebral vasculature and neurovasculature, the invention can be used in conjunction with any vascular interventional procedure in which there is an embolic risk.
- a variety of non-surgical interventional procedures have been developed over the years for opening stenosed or occluded blood vessels in a patient caused by the build up of plaque or other substances on the wall of the blood vessel. Such procedures usually involve the remote introduction of the interventional device into the lumen of the artery, usually through a catheter.
- a guiding catheter or sheath is percutaneously introduced into the cardiovascular system of a patient through the femoral artery and advanced, for example, through the vasculature until the distal end of the guiding catheter is in the common carotid artery.
- a guidewire and a dilatation catheter having a balloon on the distal end are introduced through the guiding catheter with the guidewire sliding within the dilatation catheter.
- the guidewire is first advanced out of the guiding catheter into the patient's carotid vasculature and is directed across the arterial lesion.
- the dilatation catheter is subsequently advanced over the previously advanced guidewire until the dilatation balloon is properly positioned across the arterial lesion.
- the expandable balloon is inflated to a predetermined size with a radiopaque liquid at relatively high pressures to radially compress the atherosclerotic plaque of the lesion against the inside of the artery wall and thereby dilate the lumen of the artery.
- the balloon is then deflated to a small profile so that the dilatation catheter can be withdrawn from the patient's vasculature and the blood flow resumed through the dilated artery.
- the above-described procedure is typical, it is not the only method used in angioplasty.
- Atherectomy is yet another method of treating a stenosed blood vessel in which cutting blades are rotated to shave the deposited plaque from the arterial wall.
- a vacuum catheter is usually used to capture the shaved plaque or thrombus from the blood stream during this procedure.
- abrupt reclosure may occur or restenosis of the artery may develop over time, which may require another angioplasty procedure, a surgical bypass operation, or some other method of repairing or strengthening the area.
- a physician can implant an intravascular prosthesis for maintaining vascular patency, commonly known as a stent, inside the artery across the lesion.
- the stent is crimped tightly onto the balloon portion of the catheter and transported in its delivery diameter through the patient's vasculature. At the deployment site, the stent is expanded to a larger diameter, often by inflating the balloon portion of the catheter.
- a first type of stent is expandable upon application of a controlled force, as described above, through the inflation of the balloon portion of a dilatation catheter which, upon inflation of the balloon or other expansion means, expands the compressed stent to a larger diameter to be left in place within the artery at the target site.
- a second type of stent is a self-expanding stent formed from, for example, shape memory metals or super-elastic nickel-titanum (NiTi) alloys, which will automatically expand from a compressed state when the stent is advanced out of the distal end of the delivery catheter into the body lumen.
- NiTi super-elastic nickel-titanum
- fragmented clot may be incomplete, also resulting in emboli and distal occlusions, and further, access through tortuous lumens may prove difficult.
- Laser-based disruption devices employ the photo-acoustic effect to fragment clot. Local disruption may open up a proximal occlusion but also may cause significant distal emboli.
- thrombectomy and foreign matter removal devices have been disclosed in the art.
- such devices have been found to have structures which are either highly complex or lacking in sufficient or effective expansion and retraction capabilities.
- Disadvantages associated with the devices having highly complex structure include difficulty in manufacturability as well as use in conjunction with microcatheters.
- Other less complex devices can pull through clots due to in part to the lack of experience in using the same or otherwise lack an expanded profile that is adequate in capturing clots or foreign bodies.
- Lytic drugs are also used to dissolve blood-based obstructions. These typically have the disadvantages of lengthy treatment/infusion times to remove the obstruction (>3 hrs.), production of emboli, and the potential for systemic iatrogenic bleeding as a side effect of the drug usage. Also, these drugs are not typically effective in removing obstructions that are not blood-based.
- the snare devices should be capable of capturing any naturally occurring embolic debris or that which may be released into the bloodstream during an interventional treatment, while minimizing the area occupied by structure supporting the device, and safely containing the debris until the snare device is removed from the patient's vasculature.
- the devices should embody an expanded profile that presents a consistent radial opening that completely occupies the vessel at the repair site as well as structure for effectively resisting collapse.
- such devices should be relatively easy to deploy and remove from the patient's vasculature and also should be capable of being used in narrow and very distal vasculature such as the cerebral vasculature. The following invention addresses these needs.
- the present invention is directed towards snares for removing undesired material or objects and restoring patency of blood vessels.
- the snare is a linked or monolithic framework of thin struts that is radially expansible.
- the snare of the present invention embodies a structure that provides a consistent radial opening as well as improved radial and angular resistance to collapse. That is, as the device is pulled such as through a vessel, the entrance thereto will not fall back or tip over. Moreover, the snare device maintains clearance in its interior space along its length allowing the material or objects to enter and be captured.
- the snare is manufactured from a tubular element to form struts (members run both generally longitudinally and generally circumferentially) with very small widths and thicknesses and rings (circumferential members) with very small widths and thicknesses but large expansion ratios.
- the body of the snare device is defined by a plurality of openings bounded by generally longitudinally and generally circumferentially extending members.
- a proximally extending member is attached to an elongate push member and the assembly is contemplated to be used in conjunction with a generally tubular delivery catheter.
- the intent of the invention is to provide a structure that has the capacity to engage and retain naturally occurring or foreign bodies while having a minimal profile that can traverse easily and repeatably through a standard microcatheter across tortuous anatomy.
- the device embodies superior flexibility to be deployed and retrieved consistently across difficult anatomy while being able to retain captured material.
- the inner diameter of the device is heat-set to a pre-determined size. It is envisioned that there be a family of devices that have varying strut lengths, thicknesses, flexibility, and diameters as deemed appropriate for the specific type of vascular or non-vascular setting for which the device is to be used.
- the snare device is self-expanding and includes a midsection that forms a generally tubular profile.
- the proximally extending member projects from a sidewall defining the generally tubular portion to thereby provide a substantially unobstructed radial opening at the proximal end of the snare.
- a terminal (i.e., distal) end of the snare device can be closed so as to form a pocket for receiving emboli or thrombotic debris.
- a woven basket can be attached to the distal end of the device.
- the cut tube snare device can assume a number of forms.
- the snare device of the present invention embodies first and second end portions, a pair of longitudinally spaced rings and a midsection defined by helically extending members.
- the intravascular snare device has a midsection defined by generally parallel longitudinally extending members.
- the snare device includes a single convoluted ring or alternatively a body defined by a truncated stirrup-like structure.
- the snare device has a midsection including almond-shaped apertures as viewed perpendicular to the axis of the snare.
- the present invention embodies a tip for an endovascular device including an atraumatic soft coil for preventing damage to tissue and facilitates advanceability.
- the tip further includes multiple layers of coiled material to enhance these objectives as well as to provide stiffness variations.
- FIG. 1 is a side view, partially in cross-section, of a vessel occluded by debris and a superior portion of a delivery catheter and intravascular snare assembly of the present invention positioned proximate the debris;
- FIG. 2 is a side view, partially in cross-section, of the intravascular snare of FIG. 1 deployed within the vessel;
- FIG. 3 is a plan view depicting an unrolled pattern of an intravascular snare of the present invention
- FIG. 4 is a plan view, depicting an unrolled pattern of an alternate embodiment of an intravascular snare of the present invention
- FIG. 5 is a plan view, depicting an unrolled pattern of a further alternate embodiment of an intravascular snare of the present invention.
- FIG. 6 is a plan view, depicting an unrolled pattern of a fourth embodiment of an intravascular snare of the present invention.
- FIG. 7 is a plan view, depicting an unrolled pattern of a fifth embodiment of an intravascular snare of the present invention.
- FIG. 8 is a perspective view of the embodiment depicted in FIG. 7 ;
- FIG. 9 is another perspective view of the embodiment depicted in FIG. 7 ;
- FIG. 10 is an end on view from a proximal end viewpoint of the embodiment depicted in FIG. 7 ;
- FIG. 11 is an end on view from a distal end viewpoint of the embodiment depicted in FIG. 7 ;
- FIG. 12 is a side view, depicting an elongate member of the present invention.
- FIG. 13 is a side view, partially in cross-section, depicting a plurality of coils configured about a distal end portion of the elongate members in combination with a snare device of the present invention
- FIG. 14 is a cross-sectional view, taken along lines 14 - 14 depicting the assembly of FIG. 13 ;
- FIG. 15 is a side view, partially in cross-section, depicting a distal end portion of a tip of the snare device of the present invention.
- FIG. 16 is a cross-sectional view, taken along lines 16 - 16 of FIG. 15 , depicting a portion of the assembly of FIG. 13 ;
- FIG. 17 is a cross-sectional view, taken along lines 17 - 17 of FIG. 15 , depicting the assembly of FIG. 13 ;
- FIG. 18 is a plan view, depicting a portion of an unrolled pattern of yet another embodiment of an intravascular snare of the present invention.
- FIG. 19 is a perspective side view, depicting one step of a manufacturing process used to produce the snare device of FIG. 16 ;
- FIG. 20 is a perspective bottom view, depicting one step of a manufacturing process used to produce the snare device of FIG. 16 ;
- FIG. 21 is a side view, depicting an assembled snare device of FIG. 4 of the present invention including a braided structure for capturing emboli;
- FIG. 22 is a perspective view, depicting one manner of attachment of the braided structure of FIG. 21 to a loop.
- the snare device 20 is adapted to provide more consistent and improved radial opening as well as enhanced angular resistance to collapse. Moreover, the snare device 20 of the present invention is configured to facilitate the maintenance of clearance in its interior space along its length allowing the material or objects to enter and be captured. Furthermore, since it is contemplated that the snare device 20 be manufactured from a tubular member to form elements with very small widths and thicknesses, the device is thus more easily packed to a relatively smaller diameter and inherently embodies high longitudinal flexibility.
- the snare device 20 ( FIG. 2 ) of the present invention includes a body 22 having a proximal end portion 24 and a distal end portion 26 .
- the proximal end portion 24 is intended to be affixed to a terminal end portion of an elongate member 30 (described in more detail below).
- the body 22 of the snare device 20 is generally tubular with a proximally directed opening 32 and a generally closed terminal end 34 to thereby form a basket for receiving embolus, stones, thrombus and foreign bodies found in vasculature or other body cavities.
- the snare device 20 for intravascular uses is contemplated to be used in conjunction with a generally tubular delivery catheter 40 , such as a microcatheter. Additionally, it is contemplated that a conventional guide catheter (not shown) be used in combination with the delivery catheter 40 loaded with a snare device 20 .
- the guide catheter is employed to provide a guide within a patient's vasculature through which the delivery catheter 40 is inserted.
- a proximal end of the guide includes a “Y” adapter fitted with sealing, hemostatic valves.
- the snare device 20 is intended to be self-expandable, however, it is possible to employ an expandable member such as a balloon catheter (not shown) to radially expand a snare device that is not self-expandable, but rather must be deformed to assume an expanded configuration.
- an expandable member such as a balloon catheter (not shown) to radially expand a snare device that is not self-expandable, but rather must be deformed to assume an expanded configuration.
- the body 22 of a snare device 20 is placed proximally in a compressed configuration coaxially within an internal bore of the generally tubular delivery catheter 20 .
- the longitudinally extending elongate member 30 which is attached to the proximal end 24 of the body 22 , is likewise coaxially received within the delivery catheter 40 .
- Both the body 22 and elongate member 30 are slidable within the delivery catheter 40 and accordingly, the delivery catheter 40 and the snare device 20 can be displaced longitudinally with respect to each other.
- the snare device/delivery catheter assembly 42 is introduced into a patient's vasculature using conventional means such as the Seldinger technique. Sometimes, a cutdown is made to gain access to the patient's vasculature. Using standard endovascular techniques, the emboli in the vasculature is located. The emboli is crossed with the delivery catheter 40 and an appropriate guidewire (not shown). If the vessel is occluded, contrast is injected distal to the occlusion to map the distal vessels. The tip 26 of the delivery catheter 40 is positioned one device length or slightly more beyond the emboli.
- the guidewire is removed and the snare device 20 is loaded through a rear hub (not shown) of the delivery catheter 20 with the assistance of a conventional introducer sheath (not shown).
- the snare device 20 is advanced 30-40 cm and the introducer sheath is then removed.
- the snare device 20 is advanced until the tip 26 of the basket is at the distal end of the delivery catheter 40 .
- the snare device 20 is held in place and the catheter 40 retracted to allow the device to expand. Holding the snare device 20 in place, the catheter 40 is pulled back until it is proximal to the emboli 46 .
- the entire system is drawn back holding relative positions between the snare device 20 and the catheter 40 , allowing the emboli 40 to enter the snare device 20 .
- This step can be assisted with a “stuttering” technique where the snare device 20 is drawn out a small amount, perhaps 1-2 mm, then the elongate member 30 is advanced back perhaps 2 mm to flare the mouth of the snare device 20 , assisting clot entry. Then the system is drawn out another 1 mm. This is repeated until the device 20 has traversed a distance about its own length.
- the basket can be moved back and forth past the coil in an iterative attempt to engage the coil in the struts of the basket.
- the catheter 40 can be advanced and pinch the coil, locking it into one of the openings of the basket.
- the emboli is not radiopaque, its position can be checked by a contrast injection. Also, the radiopaque tip 26 of snare device 20 can be observed during this process. A pulsing motion indicates restored flow.
- the system 42 is then drawn back until the distal end of a proximal device marker coil (described below) is at the tip of the guide.
- a large syringe perhaps 60 cc, is attached to the guide catheter at the “Y” adapter on the hub.
- the guide catheter is aspirated as the snare device 20 and clot 46 are drawn into the guide. Aspiration is maintained until the snare device 20 is fully into the “Y” adapter of the guide catheter, but the snare device 20 is not yet drawn through the hemostatic valve.
- the “Y” adapter is detached and removed with the snare device in it, allowing a moment of bleed back through the guide to flush any loose clot.
- a second “Y” arm is attached to prevent excessive bleed back.
- the guide is then flushed with saline and the entire procedure repeated as required to remove further emboli.
- the body portion 22 of the snare device 20 self-expands within vasculature and the resultant expansion profile provides a number of advantages.
- the body 22 expands to conform to the repair site 44 . That is, the generally tubular profile of the body portion 22 substantially conforms to the walls defining the blood vessel 49 .
- the snare device 20 can be sized such that upon full expansion it has a diameter smaller than the diameter of the vessel if desired.
- the expansion of the body 22 facilitates the maintenance of clearance in its interior space along its length allowing the material or objects to enter and be captured and specifically provides a substantially unobstructed access to the proximally directed opening 32 to the body 22 .
- members 50 , 51 leading to the opening 32 to the body 22 are angled or oriented so as to be adjacent the walls defining the blood vessel 49 and are therefore substantially removed from the flow path to thereby provide an unobstructed opening 32 .
- the snare device 20 is particularly well-suited to remove embolic or thrombotic debris 46 from the blood vessel 49 .
- the snare device 20 can be withdrawn proximally so that the debris 46 can be captured by the body 22 of the snare device 20 .
- a separate pusher mechanism (not shown) can be employed to push the debris 46 within the basket defined by the body portion 22 .
- the snare device 20 and delivery catheter 40 can be removed from the patient's vasculature or the snare device 20 containing the debris 46 can first be pulled within the guide catheter (not shown) and then the assembly 42 removed from the target repair site 44 . Also, just the proximal portion can be cinched down to lock the debris without being fully pulled into the delivery catheter 40 .
- thrombus or other blood-based material captured within the snare may be eliminated in a variety of ways.
- the material may be drawn into the guide catheter with the aide of a vacuum applied to the guide catheter, and removed from the body. Also, these materials may be removed from the occluded vessel and allowed to dissolve under natural or induced lytic processes. Alternately, the blood-based material may be inserted into other vasculature more tolerant of occlusion and released.
- the snare pattern 52 be cut from a tubular member using a laser. As best seen in its flattened or unrolled state, the snare pattern 52 composes a body 22 including proximal and distal end portions 24 , 26 , a midsection 54 and an elongate member 30 extending proximally from the proximal end portion 24 .
- the proximal end portion 24 includes members or leashes 50 which lead to and aid in defining an opening to the body 22 , when in its as cut configuration.
- the proximal end portion further embodies a pair of connectors 51 extending at an angle from the leashes 50 to thereby accomplish offsetting elongate member 70 from a central axis of the as cut tubular body 22 of snare device 20 as best seen in FIGS. 2 and 8 .
- the connectors 51 in turn, converge to form a proximally directed tab 53 that is connected to the elongate member 30 .
- the leashes 50 and connectors 51 define a centrally located, generally diamond-shaped aperture 56 , having a first length, that is substantially sandwiched between two parallelogram-shaped, proximal apertures 58 having a relatively shorter second length.
- a proximal convoluted ring 60 defined by members 61 arranged in a generally sinusoidal pattern is located distally adjacent the proximal end portion 24 .
- the ring 60 provides for optimal radial opening of the basket-like body 22 .
- the distal end portion 26 of the snare pattern 52 includes members or leashes 66 which define an open ended, distally directed triangle 68 sandwiched between a pair of two, parallelogram-shaped, distal apertures 70 .
- a distal convoluted ring 72 defined by members 73 arranged in a generally sinusoidal pattern is located proximally adjacent the distal end portion 26 .
- the ring 72 additionally provides for maximal radial opening of the body 27 .
- Distally directed extensions 78 project, in a parallel fashion, from pairs of converging leashes 66 .
- the midsection 54 of the snare pattern 52 includes a plurality of generally parallel longitudinally extending members 84 , each of which are joined at an angle and at one end, respectively, to the proximal ring 60 . The other end of these members are joined at an angle to the distal ring 72 .
- the terminal ends 80 , 82 of the parallelogram-shaped, distal apertures 70 are joined together to form a substantially closed basket.
- This structure can be joined using soldering or by employing a coil (described hereinbelow) that is wrapped about adjacent structures to form a soft tip.
- Distally directed extensions 78 may be trimmed to a desired length.
- the longitudinally extending members 84 while maintaining a parallel relationship, each define a helical pattern to thereby form a generally tubular midsection 54 .
- the helical configuration provides flexibility around bends as well as good foreign body containment.
- the members 50 form a tapered opening to the generally tubular midsection 54 with the elongate member 30 extending proximally from a sidewall defined by the midsection 54 . It is contemplated that the resultant tubular structure, in an undeformed state, includes a longitudinal axis that is parallel to both the elongate member 30 and the distally directed projections 78 .
- the proximal end and distal end portions 24 , 26 also include members 50 , 51 , 66 which define proximal and distal parallelogram-shaped apertures 58 , 70 as well as a diamond-shaped aperture 56 and an open ended triangle 68 .
- This second snare pattern 90 also similarly includes proximal and distal rings 60 , 72 as well as distally directed extensions 78 , each of which are joined to one of the distal parallelogram-shaped apertures 70 .
- the midsection 54 of the pattern 90 includes a plurality of parallel, longitudinally extending members 84 which are joined to the structure defining the proximal and distal end portions 24 , 26 .
- This embodiment differs from the first embodiment, however, in that the longitudinally extending members are not helically configured when the pattern 90 is in its as cut form. Rather, while defining a sidewall of a generally tubular midsection 54 , each of the longitudinally extending members 84 are parallel to a longitudinal axis of the resultant tubular snare device 20 . Being so arranged, the midsection 54 possesses the necessary flexibility to traverse sharp bends in anatomy as well as the capability of being packed into a small profile with minimal bulk.
- a substantial closed-ended basket is formed by joining via conventional means the terminal ends 78 of the snare pattern 90 .
- a tapered opening to a generally tubular midsection 54 is provided by the proximal end portion 24 where the elongate member 30 extends proximally from a sidewall defined by the midsection 54 .
- each of the proximal and distal rings 60 , 72 are shown as embodying a four crown design, fewer or more crowns are contemplated. Moreover, there need not be a leash 50 , extending from each crown. It is necessary, however, that as with the ring design depicted, the modified pattern also result in rings that provide complete open deployment consistently and reliably. To wit, such rings do not fall back. That is, there is no angular deflection when the structure is pulled into a clot or foreign body.
- a third snare pattern 100 includes a plurality of almond-shaped apertures 102 configured both circumferentially and longitudinally along the snare pattern 100 .
- Each almond-shaped aperture includes curved members 104 shared by adjacent circumferential and longitudinal almond-shaped apertures 102 .
- the third snare pattern 100 additionally includes an elongate member 30 extending proximally from a pair of converging, undulating members 105 that lead to a first pair of circumferentially spaced, almond-shaped apertures 106 defined by curved members 104 .
- Each of the first pair of circumferentially spaced, almond-shaped apertures 106 are joined and share a portion of a sidewall 104 of two of four almond-shaped apertures defining a first ring 108 of almond-shaped apertures.
- a series of three additional nested rings 110 of almond-shaped apertures 102 complete a midsection 54 of the third snare pattern 100 . Extending from terminal ends 112 of each almond-shaped aperture 102 of the distal most ring 110 , is a distally directed extension 114 .
- the third snare pattern 100 has a midsection 54 that defines a generally tubular shape and a closed basket is formed by joining the terminal ends 112 of the most distal ring of apertures 110 .
- the terminal ends may be joined using soldering, laser welding, adhesive, shrink wrap, or by employing a coil configured about adjacent structure.
- the resultant structure includes a tapered opening to the tubular midsection 54 where the elongate member 30 extends proximally from a sidewall defining the tubular midsection 54 and where the elongate member 30 and distally directed members 114 are each parallel to a longitudinal access of the resultant snare device 20 .
- the distally directed members 114 can be trimmed to a desired length.
- the snare device 20 embodies a snare pattern 120 that includes a single conventional ring 122 defined by a continuous set of interconnected members 124 .
- the interconnected members 124 are composed of straight struts that together define a central lumen in the manufactured form.
- the members 124 converge at ends thereof to form four proximal and distal crowns or vertices 126 , 127 on each side of the ring 122 .
- the ring 122 serves as a central body 128 of the snare device 20 .
- a single member 130 extends from each of the four crowns 126 , 127 of the ring in both proximal and distal directions. Proximally, the four members 130 converge into two members 132 , which again converge into a single member 134 . This single proximal member 134 serves as a tab for attachment to the elongated member 30 .
- the distally directed extensions 136 can be configured to form an atraumatic tip as described herein below.
- the snare device 20 has a pattern 140 similar to that of the fourth embodiment.
- this pattern also includes a convoluted ring 142 defined of a continuous set of interconnected members 144 .
- the interconnected members 144 are composed of straight sections that together form a central lumen 146 (see FIGS. 8-11 ) in the manufactured form.
- the members converge at terminal ends thereof to form four proximal and distal crowns 147 , 148 on each side of the ring 142 , which serves as a central body 150 of the device 20 .
- alternative crowns 147 , 148 at each end of the ring 142 are offset longitudinally from each other.
- every other interconnecting member 144 has a different length.
- a single member 152 extends from each of the four crowns 147 , 148 in both proximal and distal directions. Further, the four members 152 connected to the proximal crowns 147 converge into two members 154 , each of which again converge to form a proximal tab 156 . At the distal end of the device 20 , adjacent pairs of the single members 152 converge to a single extension 158 . Again, the terminal ends 158 may be joined using soldering, laser welding, adhesive, shrink wrap, or by employing a coil configured about adjacent structure.
- the member 30 embodies a gradual or step-tapered core comprising a proximal section of 304V stainless steel and a distal section of nitinol or an equivalent material for the intended purpose.
- a proximal portion 160 of the member 30 has a generally constant cross-sectional profile and a first diameter 161 .
- the member 30 begins to taper in a gradual and consistent, alternatively in a step-tapered manner, from the first diameter 161 to a second diameter 163 along a distal end portion 164 .
- a pair of longitudinally adjacent arranged coils 166 , 168 are employed to attach a proximal tab 174 of a snare device 20 to the distal end portion 164 of the elongate member 30 .
- the first, proximal coil 166 is contemplated to be composed of 304V stainless steel, the first coil being soldered to the elongate wire 30 near its tapered portion 170 .
- the second coil 168 is contemplated to be comprised of about 90% platinum and 10% iridium alloy. This second coil 168 , which serves as a radiopaque marker, is soldered to the elongate member 30 near a distal end portion 172 of the first coil 166 . Alternatively, the second coil 168 is soldered to the first coil 166 .
- a proximal tab 174 of the snare device 20 is contained within the second coil 168 and is soldered 176 to the elongate member 30 .
- the distal tip portion 180 is comprised of two partially coaxial coils 182 , 184 , the combination of which retains the extensions projecting from the body of the snare device 20 .
- the combination also provides a soft atraumatic tip with variable stiffness from softest distally to stiffer proximally.
- the inner coil 182 is comprised of nitinol or equivalent material, and begins at a proximal location 186 and extends to a distal location 188 .
- the nitinol inner coil 182 provides kink resistance as well as creates a smooth stiffness transition from the tip of the basket portion of the snare device 20 .
- the outer coil 184 is coaxially configured about a distal portion 190 of the inner coil 182 and is preferably comprised of 90% platinum and 10% iridium alloy or an equivalent combination of materials. As such, the outer coil 184 can operate as a radiopaque marker.
- the distal tip portion 180 further includes a rounded terminal end 192 that provides a blunt atraumatic surface.
- the terminal end 192 embodies a soldered joint which acts in retaining the helical configuration of the outer coil 184 .
- the sixth embodiment is relatively similar to a truncated third embodiment and defines a general stirrup-shaped pattern 220 .
- This stirrup pattern 220 also includes a proximally directed tab 221 and a pair of diverging members 222 extending from the tab 221 .
- Configured at each terminal end 224 of the diverging members 222 is a single almond-shaped aperture 226 defined by curved members 228 .
- the curved members 228 further include apices 229 , 230 defining outer edges of the curved member 228 .
- joined to a distal end 232 of each almond-shaped opening 226 is a distally directed extension 234 .
- the snare devices 20 of the present invention be cut from a tube 235 ( FIGS. 19 and 20 ) using conventional means such as a laser.
- a specific pattern is programmed into the laser device and the laser is activated to cut the desired pattern into the tubular element 235 .
- the excess tubular components are removed, thereby leaving a manufactured structure such as the stirrup snare pattern 220 shown in FIGS. 19 and 20 , corresponding to the desired pattern.
- a super elastic material such as nitinol is a material of choice for the snare device 20 .
- post-processing such as surface treatment, burr removal and deformation of the manufactured structure is performed. Heat treating is also performed for sizing the device.
- post-processing steps include taking an as-cut device and bead blast the device with aluminum oxide blasting media.
- the device is then inspected under a microscope for residual slag. If slag remains, the device is bead blasted again. Thereafter, the device is heat-treated in a molten salt bath without expanding.
- the device is subsequently heat-expanded in a molten salt bath mounted on a suitable size mandrel. After heat expansion, surface oxidation is removed in an aqua regia bath.
- nitinol is the material of choice, the nitinol is etched with HF solution to desired softness or strut size. The device is then mounted on a guidewire.
- the post-processing may include deforming the pattern 220 and then joining together the distal end members 234 as well as adjacent apices 229 , 230 for the purpose of achieving a closed basket for receiving debris found in vasculature.
- the pair of diverging members 222 define an opening to the resultant basket and the elongate member 30 extends from a sidewall defined by the pocket.
- distal end members 234 can be left apart and a basket attached to them as described below.
- a braided structure can be attached to a distal end portion of any of the previously described snare patterns.
- a braid can also be attached along the length of the body of the snare device.
- one such braided structure 250 can be attached to, for example, a distal end portion 26 , as well as the body snare pattern 90 .
- the snare device 20 can include terminal apices 252 forming loops 254 .
- members 256 defining a first end 258 of the braided structure 250 can be attached to the loops 254 of the terminal apices 252 by conventional means.
- a second end 260 of the braided structure 250 can remain in an open configuration, or alternatively, members 256 defining the second end 260 can be joined to form a closed elongated tube.
- the snare/braid assembly provides a number of advantages.
- such an assembly embodies additional volume for collecting debris from vasculature.
- the braided structure includes sidewalls characterized by a higher density which can, in certain circumstances, be better suited for capturing relatively smaller debris found in vasculature.
- the leading edges 262 of the connection between the braided structure 250 and the loops 254 formed in the distal end portions of a snare pattern be as atraumatic as possible.
- the members 250 defining a first end 258 of the braided structure 250 are configured into a two-legged coil 263 routed such that legs 264 of the coil extend from an outer surface of the loops 254 formed in the distal end portion 26 .
- the coil is heat-set to enhance the connection to the snare pattern.
- single-leg coils could additionally be used for attachment in the event forces required to unravel the single-leg coil are greater than the force necessary to deploy and retract the braided structure 250 .
- An atraumatic leading end remains an objective, as well as space considerations (i.e., low profile for packing into microcatheter).
- the snare devices of the present invention compared to prior art loop snares each provide improved radial opening since in an expanded state, the elongate member 30 is positioned substantially out of the flow path. Additionally, the device embodies improved resistance to radial loads compared to prior art loop snares. Moreover, since less deformation is required to produce a desired snare pattern, in that, angles between members are provided by laser cutting rather than from local deformations, for example, there is improved stress distribution along the snare devices of the present invention compared to prior art loop snares. Additionally, a greater reduction in radial profile can be achieved without sacrificing performance and in particular, the device can be used in conjunction with microcatheters. As such, the snare devices 20 of the present invention can be passed through narrow and tortuous vasculature. The applications of the present invention are more widespread than that of conventional snare devices because of greater retrieval characteristics while retaining the deliverability characteristics.
- the above described invention is principally conceived to be operational for use in engaging for the purpose of displacing and/or removing material either foreign or native to the body, including partial or complete obstructions embolic and/or thrombotic in nature, from intraluminal or extraluminal spaces of the body including but not limited to intravascular and/or intra-arterial regions of the neurovasculature, as well as tubings, stents, or other objects that may or may not be internal to the body.
- the purpose of the device is to restore functionality of the luminal space or systems dependent on the particular luminal space or as a method of producing any desired effect associated with the removal or displacement of undesirable material.
- the intended delivery of the disclosed invention is by means of a commercially available catheter selected to its ability to access the desired location of engagement.
- the invention may be optimized for specific locations or uses by means of sizing the individual elements in the design and/or the overall dimensions, as well as selection of materials, mesh configuration, number and relative geometry of component members to meet the requirements of the operational space. Optimizations may include tabs protruding from the sides of members to increase coverage of the open areas between members, offsetting vertices of joints to increase packing efficiency, or providing unconnected distal curved path. There may additionally be variations of the dimensions of length, thickness, and width of distal and proximal tabs for joining basket with delivery wire and distal tip to provide smooth stiffness transitions from tip to basket and basket to delivery wire. Such optimizations are means of adjusting operational attributes including: flexibility, applied circumferential force, engagement effectiveness, deliverability and traversal through tortuous vasculature, and volume of material to be engaged.
- Alternate or additional materials for the basket portion of the device may include a thermoset, elastomer, thermoplastic constituents such as nylon, or other metal either pure or alloyed, as well as composite materials such as a combination of glass, aramid, or carbon in a binding matrix.
- a secondary mesh of the same or dissimilar material may be added to the basket.
- the wire portion of the device can alternatively be made from a single metal or combination of metals for kink resistance and high flexibility. Either or both components may be tapered to give a transition in stiffness that is appropriate for the vessel in which the invention is to be delivered.
- the distal tip of the device may incorporate concentric coils made of nitinol, stainless steel, or other metal or plastic to provide a soft flexible atraumatic end.
- An alternate method of manufacture of the basket portion of the device may be etching, or metal or polymer injection molding.
- the device may employ any combination of coatings, agents, or features including those of that result from material addition or subtraction to create grooves, bumps, three dimensional patterns, and textures on inner and/or outer surfaces or any combination thereof to promote desired properties such as adherence of materials to be engaged, radiopacity, and low friction between the device and the vessel wall or microcatheter lumen.
- the invention is deliverable to remote regions of the neurovasculature by gaining access through the use of a guidewire and microcatheter in the vasculature and subsequent deployment of the invention through the lumen of the microcatheter.
- the device In a vessel in which flow is impeded or obstructed by material and/or objects including those formed by the body such as blood clot, the device is deployed by withdrawing the microcatheter relative to the wire. Engagement occurs as the system composed of the invention and microcatheter is pulled into the material. After the material has been engaged, removal of the material is accomplished by withdrawing the system into a guide catheter lumen through which the microcatheter is passed with or without simultaneously pulling fluid through the guide lumen.
Abstract
An intravascular snare device for use in capturing debris found in blood vessels. The snare device is fabricated from a tube and includes longitudinally and circumferentially extending members. The snare device specifically embodies structure that provides enhanced radial opening and angular resistance to collapse.
Description
- The present invention relates generally to intravascular snare devices and systems and more particularly, devices which can be used to capture embolic material or thrombi found in blood vessels.
- The intravascular snare device and system of the present invention is particularly useful when performing balloon angioplasty, stenting procedures, laser angioplasty or atherectomy in critical vessels where the release of embolic debris into the bloodstream can occlude the flow of oxygenated blood to the brain or other vital organs, which can cause devastating consequences to the patient. The snare device is also suited for the removal of clots adhering to vessel walls. While the snare device and system of the present invention is particularly useful in the cerebral vasculature and neurovasculature, the invention can be used in conjunction with any vascular interventional procedure in which there is an embolic risk.
- A variety of non-surgical interventional procedures have been developed over the years for opening stenosed or occluded blood vessels in a patient caused by the build up of plaque or other substances on the wall of the blood vessel. Such procedures usually involve the remote introduction of the interventional device into the lumen of the artery, usually through a catheter. In typical carotid PTA procedures, a guiding catheter or sheath is percutaneously introduced into the cardiovascular system of a patient through the femoral artery and advanced, for example, through the vasculature until the distal end of the guiding catheter is in the common carotid artery. A guidewire and a dilatation catheter having a balloon on the distal end are introduced through the guiding catheter with the guidewire sliding within the dilatation catheter. The guidewire is first advanced out of the guiding catheter into the patient's carotid vasculature and is directed across the arterial lesion. The dilatation catheter is subsequently advanced over the previously advanced guidewire until the dilatation balloon is properly positioned across the arterial lesion. Once in position across the lesion, the expandable balloon is inflated to a predetermined size with a radiopaque liquid at relatively high pressures to radially compress the atherosclerotic plaque of the lesion against the inside of the artery wall and thereby dilate the lumen of the artery. The balloon is then deflated to a small profile so that the dilatation catheter can be withdrawn from the patient's vasculature and the blood flow resumed through the dilated artery. As should be appreciated by those skilled in the art, while the above-described procedure is typical, it is not the only method used in angioplasty.
- Another procedure is laser angioplasty which utilizes a laser to ablate the stenosis by super heating and vaporizing the deposited plaque. Atherectomy is yet another method of treating a stenosed blood vessel in which cutting blades are rotated to shave the deposited plaque from the arterial wall. A vacuum catheter is usually used to capture the shaved plaque or thrombus from the blood stream during this procedure.
- In the procedures of the kind referenced above, abrupt reclosure may occur or restenosis of the artery may develop over time, which may require another angioplasty procedure, a surgical bypass operation, or some other method of repairing or strengthening the area. To reduce the likelihood of the occurrence of abrupt reclosure and to strengthen the area, a physician can implant an intravascular prosthesis for maintaining vascular patency, commonly known as a stent, inside the artery across the lesion. The stent is crimped tightly onto the balloon portion of the catheter and transported in its delivery diameter through the patient's vasculature. At the deployment site, the stent is expanded to a larger diameter, often by inflating the balloon portion of the catheter.
- Prior art stents typically fall into two general categories of construction. A first type of stent is expandable upon application of a controlled force, as described above, through the inflation of the balloon portion of a dilatation catheter which, upon inflation of the balloon or other expansion means, expands the compressed stent to a larger diameter to be left in place within the artery at the target site. A second type of stent is a self-expanding stent formed from, for example, shape memory metals or super-elastic nickel-titanum (NiTi) alloys, which will automatically expand from a compressed state when the stent is advanced out of the distal end of the delivery catheter into the body lumen. Such stents manufactured from expandable heat sensitive materials allow for phase transformations of the material to occur, resulting in the expansion and contraction of the stent.
- The above minimally invasive interventional procedures, when successful, avoid the necessity of major surgical operations. However, there is one common problem which can become associated with all of these types of procedures, namely, the potential release of embolic debris into the bloodstream that can occlude distal vasculature and cause significant health problems to the patient. For example, during deployment of a stent, it is possible that the metal struts of the stent can cut into the stenosis and shear off pieces of plaque which become embolic debris that can travel downstream and lodge somewhere in the patient's vascular system. Pieces of plaque material can sometimes dislodge from the stenosis during a balloon angioplasty procedure and become released into the bloodstream. Additionally, while complete vaporization of plaque is the intended goal during a laser angioplasty procedure, quite often particles are not fully vaporized and thus enter the bloodstream. Likewise, not all of the emboli created during an atherectomy procedure may be drawn into the vacuum catheter and, as a result, enter the bloodstream as well.
- When any of the above-described procedures are performed in the carotid arteries, cerebral vasculature, or neurovasculature, the release of emboli into the circulatory system can be extremely dangerous and sometimes fatal to the patient. Naturally occurring debris can also be highly dangerous to a patient. That is, debris which travels through the blood vessel as a natural result of bodily functions and not as a result of an intervention procedure. Debris that is carried by the bloodstream to distal vessels of the brain can cause these cerebral vessels to occlude, resulting in a stroke, and in some cases, death. Therefore, although cerebral percutaneous transluminal angioplasty has been performed in the past, the number of procedures performed has been limited due to the justifiable fear of causing an embolic stroke should embolic debris enter the bloodstream and block vital downstream blood passages.
- Medical devices have been developed to attempt to deal with the problem created when debris or fragments that naturally occur or that enter the circulatory system following vessel treatment utilizing any one of the above-identified procedures. One approach which has been attempted is the cutting of any debris into minute sizes which pose little chance of becoming occluded in major vessels within the patient's vasculature. However, it is often difficult to control the size of the fragments which are formed, and the potential risk of vessel occlusion still exists, making such a procedure in the carotid arteries a high-risk proposition.
- In addition, the retrieval of fragmented clot may be incomplete, also resulting in emboli and distal occlusions, and further, access through tortuous lumens may prove difficult. Laser-based disruption devices employ the photo-acoustic effect to fragment clot. Local disruption may open up a proximal occlusion but also may cause significant distal emboli.
- Other techniques which have been developed to address the problem of removing embolic debris include the use of catheters with a vacuum source which provides temporary suction to remove embolic debris from the bloodstream. However, as mentioned above, there have been complications with such systems since the vacuum catheter may not always remove all of the embolic material from the bloodstream, and a powerful suction could otherwise cause problems to the patient's vasculature. Other techniques which have had some limited success include the placement of a filter or trap downstream from the treatment site to capture embolic debris before it reaches the smaller blood vessels downstream. However, there have been problems associated with conventional filtering systems as well. In particular, certain previously developed filtering devices do not optimize the area for embolic collection. That is, conventional filtering devices may not present a collection device that spans the entity of the vessel or it may include supporting structure that itself impedes emboli collection. Certain other devices do not embody sufficient angular resistance to collapse.
- Moreover, thrombectomy and foreign matter removal devices have been disclosed in the art. However, in addition suffering from the same disadvantages as certain conventional filter devices, such devices have been found to have structures which are either highly complex or lacking in sufficient or effective expansion and retraction capabilities. Disadvantages associated with the devices having highly complex structure include difficulty in manufacturability as well as use in conjunction with microcatheters. Other less complex devices can pull through clots due to in part to the lack of experience in using the same or otherwise lack an expanded profile that is adequate in capturing clots or foreign bodies.
- Furthermore, in current interventional radiology practice, the need arises to remove a variety of objects from intraluminal spaces. Among these are embolic coils, guidewire tips, distal catheter segments, thrombus and other vascular emboli, few of which can be readily removed with current devices. Thrombo-embolic materials can be friable, amorphous, and/or lubricious in nature contributing to this difficulty. Most current therapies rely on grasping, fragmenting, or dissolving the blood-based obstructions. Among the grasping devices are the loop snares and the wire basket snares. These devices may have limited effectiveness, due in part to the lack of encapsulation. Objects are difficult to grasp within these devices, and friable objects, e.g. blood-based blockages, tend to fragment when grasped or pulled, introducing multiple emboli.
- Lytic drugs are also used to dissolve blood-based obstructions. These typically have the disadvantages of lengthy treatment/infusion times to remove the obstruction (>3 hrs.), production of emboli, and the potential for systemic iatrogenic bleeding as a side effect of the drug usage. Also, these drugs are not typically effective in removing obstructions that are not blood-based.
- What has been needed is a reliable intravascular snare device and system for use when treating blood vessels. The snare devices should be capable of capturing any naturally occurring embolic debris or that which may be released into the bloodstream during an interventional treatment, while minimizing the area occupied by structure supporting the device, and safely containing the debris until the snare device is removed from the patient's vasculature. The devices should embody an expanded profile that presents a consistent radial opening that completely occupies the vessel at the repair site as well as structure for effectively resisting collapse. Moreover, such devices should be relatively easy to deploy and remove from the patient's vasculature and also should be capable of being used in narrow and very distal vasculature such as the cerebral vasculature. The following invention addresses these needs.
- Briefly and in general terms, the present invention is directed towards snares for removing undesired material or objects and restoring patency of blood vessels. The snare is a linked or monolithic framework of thin struts that is radially expansible. The snare of the present invention embodies a structure that provides a consistent radial opening as well as improved radial and angular resistance to collapse. That is, as the device is pulled such as through a vessel, the entrance thereto will not fall back or tip over. Moreover, the snare device maintains clearance in its interior space along its length allowing the material or objects to enter and be captured.
- In one aspect of the invention, the snare is manufactured from a tubular element to form struts (members run both generally longitudinally and generally circumferentially) with very small widths and thicknesses and rings (circumferential members) with very small widths and thicknesses but large expansion ratios. The body of the snare device is defined by a plurality of openings bounded by generally longitudinally and generally circumferentially extending members. A proximally extending member is attached to an elongate push member and the assembly is contemplated to be used in conjunction with a generally tubular delivery catheter.
- Overall, the intent of the invention is to provide a structure that has the capacity to engage and retain naturally occurring or foreign bodies while having a minimal profile that can traverse easily and repeatably through a standard microcatheter across tortuous anatomy. The device embodies superior flexibility to be deployed and retrieved consistently across difficult anatomy while being able to retain captured material. The inner diameter of the device is heat-set to a pre-determined size. It is envisioned that there be a family of devices that have varying strut lengths, thicknesses, flexibility, and diameters as deemed appropriate for the specific type of vascular or non-vascular setting for which the device is to be used.
- In a presently preferred embodiment, the snare device is self-expanding and includes a midsection that forms a generally tubular profile. The proximally extending member projects from a sidewall defining the generally tubular portion to thereby provide a substantially unobstructed radial opening at the proximal end of the snare. A terminal (i.e., distal) end of the snare device can be closed so as to form a pocket for receiving emboli or thrombotic debris. In the event it is desirable to employ a snare device manufactured from a tube embodying both proximal and distal open ends, a woven basket can be attached to the distal end of the device.
- The cut tube snare device can assume a number of forms. In one presently contemplated aspect, the snare device of the present invention embodies first and second end portions, a pair of longitudinally spaced rings and a midsection defined by helically extending members. In another aspect, the intravascular snare device has a midsection defined by generally parallel longitudinally extending members. In other aspects, the snare device includes a single convoluted ring or alternatively a body defined by a truncated stirrup-like structure. In yet another embodiment, the snare device has a midsection including almond-shaped apertures as viewed perpendicular to the axis of the snare.
- Moreover, the present invention embodies a tip for an endovascular device including an atraumatic soft coil for preventing damage to tissue and facilitates advanceability. The tip further includes multiple layers of coiled material to enhance these objectives as well as to provide stiffness variations.
- These and other objects and advantages of the invention will become apparent from the following more detailed description, when taken in conjunction with the accompanying drawings of illustrative embodiments.
-
FIG. 1 is a side view, partially in cross-section, of a vessel occluded by debris and a superior portion of a delivery catheter and intravascular snare assembly of the present invention positioned proximate the debris; -
FIG. 2 is a side view, partially in cross-section, of the intravascular snare ofFIG. 1 deployed within the vessel; -
FIG. 3 is a plan view depicting an unrolled pattern of an intravascular snare of the present invention; -
FIG. 4 is a plan view, depicting an unrolled pattern of an alternate embodiment of an intravascular snare of the present invention; -
FIG. 5 is a plan view, depicting an unrolled pattern of a further alternate embodiment of an intravascular snare of the present invention; -
FIG. 6 is a plan view, depicting an unrolled pattern of a fourth embodiment of an intravascular snare of the present invention; -
FIG. 7 is a plan view, depicting an unrolled pattern of a fifth embodiment of an intravascular snare of the present invention; -
FIG. 8 is a perspective view of the embodiment depicted inFIG. 7 ; -
FIG. 9 is another perspective view of the embodiment depicted inFIG. 7 ; -
FIG. 10 is an end on view from a proximal end viewpoint of the embodiment depicted inFIG. 7 ; -
FIG. 11 is an end on view from a distal end viewpoint of the embodiment depicted inFIG. 7 ; -
FIG. 12 is a side view, depicting an elongate member of the present invention; -
FIG. 13 is a side view, partially in cross-section, depicting a plurality of coils configured about a distal end portion of the elongate members in combination with a snare device of the present invention; -
FIG. 14 is a cross-sectional view, taken along lines 14-14 depicting the assembly ofFIG. 13 ; -
FIG. 15 is a side view, partially in cross-section, depicting a distal end portion of a tip of the snare device of the present invention; -
FIG. 16 is a cross-sectional view, taken along lines 16-16 ofFIG. 15 , depicting a portion of the assembly ofFIG. 13 ; -
FIG. 17 is a cross-sectional view, taken along lines 17-17 ofFIG. 15 , depicting the assembly ofFIG. 13 ; -
FIG. 18 is a plan view, depicting a portion of an unrolled pattern of yet another embodiment of an intravascular snare of the present invention; -
FIG. 19 is a perspective side view, depicting one step of a manufacturing process used to produce the snare device ofFIG. 16 ; -
FIG. 20 is a perspective bottom view, depicting one step of a manufacturing process used to produce the snare device ofFIG. 16 ; -
FIG. 21 is a side view, depicting an assembled snare device ofFIG. 4 of the present invention including a braided structure for capturing emboli; and -
FIG. 22 is a perspective view, depicting one manner of attachment of the braided structure ofFIG. 21 to a loop. - Referring now to the drawings, and in particular
FIGS. 1 and 2 , there is shown the snare device of the present invention. Thesnare device 20 is adapted to provide more consistent and improved radial opening as well as enhanced angular resistance to collapse. Moreover, thesnare device 20 of the present invention is configured to facilitate the maintenance of clearance in its interior space along its length allowing the material or objects to enter and be captured. Furthermore, since it is contemplated that thesnare device 20 be manufactured from a tubular member to form elements with very small widths and thicknesses, the device is thus more easily packed to a relatively smaller diameter and inherently embodies high longitudinal flexibility. - The snare device 20 (
FIG. 2 ) of the present invention includes abody 22 having aproximal end portion 24 and adistal end portion 26. Theproximal end portion 24 is intended to be affixed to a terminal end portion of an elongate member 30 (described in more detail below). In a presently preferred embodiment, thebody 22 of thesnare device 20 is generally tubular with a proximally directedopening 32 and a generally closedterminal end 34 to thereby form a basket for receiving embolus, stones, thrombus and foreign bodies found in vasculature or other body cavities. - The
snare device 20 for intravascular uses is contemplated to be used in conjunction with a generallytubular delivery catheter 40, such as a microcatheter. Additionally, it is contemplated that a conventional guide catheter (not shown) be used in combination with thedelivery catheter 40 loaded with asnare device 20. The guide catheter is employed to provide a guide within a patient's vasculature through which thedelivery catheter 40 is inserted. A proximal end of the guide includes a “Y” adapter fitted with sealing, hemostatic valves. Thesnare device 20 is intended to be self-expandable, however, it is possible to employ an expandable member such as a balloon catheter (not shown) to radially expand a snare device that is not self-expandable, but rather must be deformed to assume an expanded configuration. - In use, the
body 22 of asnare device 20 is placed proximally in a compressed configuration coaxially within an internal bore of the generallytubular delivery catheter 20. The longitudinally extendingelongate member 30 which is attached to theproximal end 24 of thebody 22, is likewise coaxially received within thedelivery catheter 40. Both thebody 22 andelongate member 30 are slidable within thedelivery catheter 40 and accordingly, thedelivery catheter 40 and thesnare device 20 can be displaced longitudinally with respect to each other. - A typical procedure will now be described. In order to restore patency in a vessel, the snare device/
delivery catheter assembly 42 is introduced into a patient's vasculature using conventional means such as the Seldinger technique. Sometimes, a cutdown is made to gain access to the patient's vasculature. Using standard endovascular techniques, the emboli in the vasculature is located. The emboli is crossed with thedelivery catheter 40 and an appropriate guidewire (not shown). If the vessel is occluded, contrast is injected distal to the occlusion to map the distal vessels. Thetip 26 of thedelivery catheter 40 is positioned one device length or slightly more beyond the emboli. The guidewire is removed and thesnare device 20 is loaded through a rear hub (not shown) of thedelivery catheter 20 with the assistance of a conventional introducer sheath (not shown). Thesnare device 20 is advanced 30-40 cm and the introducer sheath is then removed. - Next, the
snare device 20 is advanced until thetip 26 of the basket is at the distal end of thedelivery catheter 40. Thesnare device 20 is held in place and thecatheter 40 retracted to allow the device to expand. Holding thesnare device 20 in place, thecatheter 40 is pulled back until it is proximal to the emboli 46. The entire system is drawn back holding relative positions between thesnare device 20 and thecatheter 40, allowing theemboli 40 to enter thesnare device 20. This step can be assisted with a “stuttering” technique where thesnare device 20 is drawn out a small amount, perhaps 1-2 mm, then theelongate member 30 is advanced back perhaps 2 mm to flare the mouth of thesnare device 20, assisting clot entry. Then the system is drawn out another 1 mm. This is repeated until thedevice 20 has traversed a distance about its own length. - If the emboli is foreign in origin, such as a coil, the basket can be moved back and forth past the coil in an iterative attempt to engage the coil in the struts of the basket. When this has occurred, the
catheter 40 can be advanced and pinch the coil, locking it into one of the openings of the basket. If the emboli is not radiopaque, its position can be checked by a contrast injection. Also, theradiopaque tip 26 ofsnare device 20 can be observed during this process. A pulsing motion indicates restored flow. - The
system 42 is then drawn back until the distal end of a proximal device marker coil (described below) is at the tip of the guide. At this point, a large syringe, perhaps 60 cc, is attached to the guide catheter at the “Y” adapter on the hub. The guide catheter is aspirated as thesnare device 20 andclot 46 are drawn into the guide. Aspiration is maintained until thesnare device 20 is fully into the “Y” adapter of the guide catheter, but thesnare device 20 is not yet drawn through the hemostatic valve. The “Y” adapter is detached and removed with the snare device in it, allowing a moment of bleed back through the guide to flush any loose clot. Optionally, then a second “Y” arm is attached to prevent excessive bleed back. The guide is then flushed with saline and the entire procedure repeated as required to remove further emboli. - The manner in which the
body portion 22 of thesnare device 20 self-expands within vasculature and the resultant expansion profile provides a number of advantages. In particular, thebody 22 expands to conform to therepair site 44. That is, the generally tubular profile of thebody portion 22 substantially conforms to the walls defining theblood vessel 49. Alternatively, thesnare device 20 can be sized such that upon full expansion it has a diameter smaller than the diameter of the vessel if desired. Moreover, the expansion of thebody 22 facilitates the maintenance of clearance in its interior space along its length allowing the material or objects to enter and be captured and specifically provides a substantially unobstructed access to the proximally directed opening 32 to thebody 22. Significantly, as thebody 22 self-expands,members opening 32 to thebody 22 are angled or oriented so as to be adjacent the walls defining theblood vessel 49 and are therefore substantially removed from the flow path to thereby provide anunobstructed opening 32. - In its expanded state, the
snare device 20 is particularly well-suited to remove embolic orthrombotic debris 46 from theblood vessel 49. As stated, thesnare device 20 can be withdrawn proximally so that thedebris 46 can be captured by thebody 22 of thesnare device 20. Alternatively, a separate pusher mechanism (not shown) can be employed to push thedebris 46 within the basket defined by thebody portion 22. Once the debris has been captured, thesnare device 20 anddelivery catheter 40 can be removed from the patient's vasculature or thesnare device 20 containing thedebris 46 can first be pulled within the guide catheter (not shown) and then theassembly 42 removed from thetarget repair site 44. Also, just the proximal portion can be cinched down to lock the debris without being fully pulled into thedelivery catheter 40. - It is to be understood, however, that thrombus or other blood-based material captured within the snare may be eliminated in a variety of ways. For example, the material may be drawn into the guide catheter with the aide of a vacuum applied to the guide catheter, and removed from the body. Also, these materials may be removed from the occluded vessel and allowed to dissolve under natural or induced lytic processes. Alternately, the blood-based material may be inserted into other vasculature more tolerant of occlusion and released.
- Referring now to
FIG. 3 , there is shown onepreferred pattern 52 of thesnare device 20 of the present invention. As will be developed further below, it is contemplated that thesnare pattern 52 be cut from a tubular member using a laser. As best seen in its flattened or unrolled state, thesnare pattern 52 composes abody 22 including proximal anddistal end portions midsection 54 and anelongate member 30 extending proximally from theproximal end portion 24. - The
proximal end portion 24 includes members orleashes 50 which lead to and aid in defining an opening to thebody 22, when in its as cut configuration. The proximal end portion further embodies a pair ofconnectors 51 extending at an angle from theleashes 50 to thereby accomplish offsettingelongate member 70 from a central axis of the as cuttubular body 22 ofsnare device 20 as best seen inFIGS. 2 and 8 . Theconnectors 51, in turn, converge to form a proximally directedtab 53 that is connected to theelongate member 30. Theleashes 50 andconnectors 51 define a centrally located, generally diamond-shapedaperture 56, having a first length, that is substantially sandwiched between two parallelogram-shaped,proximal apertures 58 having a relatively shorter second length. A proximalconvoluted ring 60 defined bymembers 61 arranged in a generally sinusoidal pattern is located distally adjacent theproximal end portion 24. Thering 60 provides for optimal radial opening of the basket-like body 22. - The
distal end portion 26 of thesnare pattern 52 includes members orleashes 66 which define an open ended, distally directedtriangle 68 sandwiched between a pair of two, parallelogram-shaped,distal apertures 70. A distalconvoluted ring 72 defined bymembers 73 arranged in a generally sinusoidal pattern is located proximally adjacent thedistal end portion 26. Thering 72 additionally provides for maximal radial opening of the body 27. Distally directedextensions 78 project, in a parallel fashion, from pairs of convergingleashes 66. - The
midsection 54 of thesnare pattern 52 includes a plurality of generally parallel longitudinally extendingmembers 84, each of which are joined at an angle and at one end, respectively, to theproximal ring 60. The other end of these members are joined at an angle to thedistal ring 72. - In its as cut form, the terminal ends 80, 82 of the parallelogram-shaped,
distal apertures 70 are joined together to form a substantially closed basket. This structure can be joined using soldering or by employing a coil (described hereinbelow) that is wrapped about adjacent structures to form a soft tip. Distally directedextensions 78 may be trimmed to a desired length. Thelongitudinally extending members 84, while maintaining a parallel relationship, each define a helical pattern to thereby form a generallytubular midsection 54. The helical configuration provides flexibility around bends as well as good foreign body containment. Themembers 50 form a tapered opening to the generallytubular midsection 54 with theelongate member 30 extending proximally from a sidewall defined by themidsection 54. It is contemplated that the resultant tubular structure, in an undeformed state, includes a longitudinal axis that is parallel to both theelongate member 30 and the distally directedprojections 78. - In an alternative embodiment of a snare pattern 90 (
FIG. 4 ), the proximal end anddistal end portions members apertures aperture 56 and an open endedtriangle 68. Thissecond snare pattern 90 also similarly includes proximal anddistal rings extensions 78, each of which are joined to one of the distal parallelogram-shapedapertures 70. Moreover, themidsection 54 of thepattern 90 includes a plurality of parallel, longitudinally extendingmembers 84 which are joined to the structure defining the proximal anddistal end portions pattern 90 is in its as cut form. Rather, while defining a sidewall of a generallytubular midsection 54, each of thelongitudinally extending members 84 are parallel to a longitudinal axis of the resultanttubular snare device 20. Being so arranged, themidsection 54 possesses the necessary flexibility to traverse sharp bends in anatomy as well as the capability of being packed into a small profile with minimal bulk. - Further, it is to be recognized that as with the first embodiment, a substantial closed-ended basket is formed by joining via conventional means the terminal ends 78 of the
snare pattern 90. Additionally, a tapered opening to a generallytubular midsection 54 is provided by theproximal end portion 24 where theelongate member 30 extends proximally from a sidewall defined by themidsection 54. - Although each of the proximal and
distal rings leash 50, extending from each crown. It is necessary, however, that as with the ring design depicted, the modified pattern also result in rings that provide complete open deployment consistently and reliably. To wit, such rings do not fall back. That is, there is no angular deflection when the structure is pulled into a clot or foreign body. - Turning now to
FIG. 5 , in yet another embodiment of thesnare device 20 of the present invention, athird snare pattern 100 includes a plurality of almond-shapedapertures 102 configured both circumferentially and longitudinally along thesnare pattern 100. Each almond-shaped aperture includescurved members 104 shared by adjacent circumferential and longitudinal almond-shapedapertures 102. - The
third snare pattern 100 additionally includes anelongate member 30 extending proximally from a pair of converging, undulatingmembers 105 that lead to a first pair of circumferentially spaced, almond-shapedapertures 106 defined bycurved members 104. Each of the first pair of circumferentially spaced, almond-shapedapertures 106 are joined and share a portion of asidewall 104 of two of four almond-shaped apertures defining afirst ring 108 of almond-shaped apertures. In a presently preferred embodiment, a series of three additional nested rings 110 of almond-shapedapertures 102, though fewer or more are contemplated, complete amidsection 54 of thethird snare pattern 100. Extending from terminal ends 112 of each almond-shapedaperture 102 of the distalmost ring 110, is a distally directedextension 114. - In its manufactured form, the
third snare pattern 100 has amidsection 54 that defines a generally tubular shape and a closed basket is formed by joining the terminal ends 112 of the most distal ring ofapertures 110. Again, the terminal ends may be joined using soldering, laser welding, adhesive, shrink wrap, or by employing a coil configured about adjacent structure. - Additionally, the resultant structure includes a tapered opening to the
tubular midsection 54 where theelongate member 30 extends proximally from a sidewall defining thetubular midsection 54 and where theelongate member 30 and distally directedmembers 114 are each parallel to a longitudinal access of theresultant snare device 20. The distally directedmembers 114 can be trimmed to a desired length. An additional feature of this embodiment (andFIG. 7 described below) is that the curved transitions fromtab 53 to converging, undulatingmembers 105 enhances ease of retrieval of the device into a microcatheter. - In a fourth embodiment (
FIG. 6 ), thesnare device 20 embodies asnare pattern 120 that includes a singleconventional ring 122 defined by a continuous set ofinterconnected members 124. Theinterconnected members 124 are composed of straight struts that together define a central lumen in the manufactured form. Themembers 124 converge at ends thereof to form four proximal and distal crowns orvertices ring 122. Thering 122 serves as acentral body 128 of thesnare device 20. - A
single member 130 extends from each of the fourcrowns members 130 converge into twomembers 132, which again converge into asingle member 134. This singleproximal member 134 serves as a tab for attachment to theelongated member 30. - Extending from each of the
members 130 projecting from thedistal crowns 127 is a single distally directedextension 136. The distally directedextensions 136 can be configured to form an atraumatic tip as described herein below. - In a fifth embodiment (
FIG. 7 ), thesnare device 20 has apattern 140 similar to that of the fourth embodiment. In particular, this pattern also includes aconvoluted ring 142 defined of a continuous set ofinterconnected members 144. Theinterconnected members 144 are composed of straight sections that together form a central lumen 146 (seeFIGS. 8-11 ) in the manufactured form. The members converge at terminal ends thereof to form four proximal anddistal crowns ring 142, which serves as acentral body 150 of thedevice 20. In this embodiment, however,alternative crowns ring 142 are offset longitudinally from each other. Thus, every other interconnectingmember 144 has a different length. - As with the fourth embodiment, a
single member 152 extends from each of the fourcrowns members 152 connected to theproximal crowns 147 converge into twomembers 154, each of which again converge to form aproximal tab 156. At the distal end of thedevice 20, adjacent pairs of thesingle members 152 converge to asingle extension 158. Again, the terminal ends 158 may be joined using soldering, laser welding, adhesive, shrink wrap, or by employing a coil configured about adjacent structure. - Referring now to
FIG. 12 , there is shown one preferred embodiment of theelongated member 30 of the present invention. Themember 30 embodies a gradual or step-tapered core comprising a proximal section of 304V stainless steel and a distal section of nitinol or an equivalent material for the intended purpose. Aproximal portion 160 of themember 30 has a generally constant cross-sectional profile and afirst diameter 161. At a transition point 162, themember 30 begins to taper in a gradual and consistent, alternatively in a step-tapered manner, from thefirst diameter 161 to asecond diameter 163 along adistal end portion 164. - As shown in
FIGS. 13 and 14 , a pair of longitudinally adjacent arrangedcoils proximal tab 174 of asnare device 20 to thedistal end portion 164 of theelongate member 30. The first,proximal coil 166 is contemplated to be composed of 304V stainless steel, the first coil being soldered to theelongate wire 30 near itstapered portion 170. Thesecond coil 168 is contemplated to be comprised of about 90% platinum and 10% iridium alloy. Thissecond coil 168, which serves as a radiopaque marker, is soldered to theelongate member 30 near adistal end portion 172 of thefirst coil 166. Alternatively, thesecond coil 168 is soldered to thefirst coil 166. Aproximal tab 174 of thesnare device 20 is contained within thesecond coil 168 and is soldered 176 to theelongate member 30. - Turning now to
FIGS. 15-17 , one presently preferred embodiment of adistal tip portion 180 of thesnare device 20 of the present invention is described. Thedistal tip portion 180 is comprised of two partiallycoaxial coils snare device 20. The combination also provides a soft atraumatic tip with variable stiffness from softest distally to stiffer proximally. - The
inner coil 182 is comprised of nitinol or equivalent material, and begins at aproximal location 186 and extends to adistal location 188. The nitinolinner coil 182 provides kink resistance as well as creates a smooth stiffness transition from the tip of the basket portion of thesnare device 20. Theouter coil 184 is coaxially configured about adistal portion 190 of theinner coil 182 and is preferably comprised of 90% platinum and 10% iridium alloy or an equivalent combination of materials. As such, theouter coil 184 can operate as a radiopaque marker. - The
distal tip portion 180 further includes a roundedterminal end 192 that provides a blunt atraumatic surface. Theterminal end 192 embodies a soldered joint which acts in retaining the helical configuration of theouter coil 184. - With reference to
FIGS. 18-20 , a brief summary of the process used to manufacture thesnare devices 20 of the present invention is provided, with a specific focus on a sixth embodiment of the present invention. As shown inFIG. 18 , the sixth embodiment is relatively similar to a truncated third embodiment and defines a general stirrup-shapedpattern 220. Thisstirrup pattern 220 also includes a proximally directedtab 221 and a pair of divergingmembers 222 extending from thetab 221. Configured at eachterminal end 224 of the divergingmembers 222 is a single almond-shapedaperture 226 defined bycurved members 228. Thecurved members 228 further includeapices curved member 228. Moreover, joined to adistal end 232 of each almond-shapedopening 226 is a distally directedextension 234. - It is contemplated that the
snare devices 20 of the present invention be cut from a tube 235 (FIGS. 19 and 20 ) using conventional means such as a laser. In particular, a specific pattern is programmed into the laser device and the laser is activated to cut the desired pattern into thetubular element 235. The excess tubular components are removed, thereby leaving a manufactured structure such as thestirrup snare pattern 220 shown inFIGS. 19 and 20 , corresponding to the desired pattern. In a presently preferred embodiment, a super elastic material such as nitinol is a material of choice for thesnare device 20. Thereafter, post-processing such as surface treatment, burr removal and deformation of the manufactured structure is performed. Heat treating is also performed for sizing the device. - In particular, post-processing steps include taking an as-cut device and bead blast the device with aluminum oxide blasting media. The device is then inspected under a microscope for residual slag. If slag remains, the device is bead blasted again. Thereafter, the device is heat-treated in a molten salt bath without expanding. The device is subsequently heat-expanded in a molten salt bath mounted on a suitable size mandrel. After heat expansion, surface oxidation is removed in an aqua regia bath. When nitinol is the material of choice, the nitinol is etched with HF solution to desired softness or strut size. The device is then mounted on a guidewire.
- In the case of the
stirrup pattern 220, the post-processing may include deforming thepattern 220 and then joining together thedistal end members 234 as well asadjacent apices members 222 define an opening to the resultant basket and theelongate member 30 extends from a sidewall defined by the pocket. Alternatively,distal end members 234 can be left apart and a basket attached to them as described below. - It is contemplated that certain circumstances may dictate other forms of a
snare device 20. In particular, it is contemplated that a braided structure can be attached to a distal end portion of any of the previously described snare patterns. A braid can also be attached along the length of the body of the snare device. As shown inFIG. 21 , onesuch braided structure 250 can be attached to, for example, adistal end portion 26, as well as thebody snare pattern 90. In such a case, rather than terminating with distally directedmembers 78, thesnare device 20 can includeterminal apices 252 formingloops 254. - In one presently preferred embodiment,
members 256 defining afirst end 258 of thebraided structure 250 can be attached to theloops 254 of theterminal apices 252 by conventional means. Asecond end 260 of thebraided structure 250 can remain in an open configuration, or alternatively,members 256 defining thesecond end 260 can be joined to form a closed elongated tube. - The snare/braid assembly provides a number of advantages. In particular, such an assembly embodies additional volume for collecting debris from vasculature. Additionally, the braided structure includes sidewalls characterized by a higher density which can, in certain circumstances, be better suited for capturing relatively smaller debris found in vasculature.
- Turning to
FIG. 22 , it is important that the leadingedges 262 of the connection between thebraided structure 250 and theloops 254 formed in the distal end portions of a snare pattern be as atraumatic as possible. In one presently preferred embodiment, themembers 250 defining afirst end 258 of thebraided structure 250 are configured into a two-legged coil 263 routed such thatlegs 264 of the coil extend from an outer surface of theloops 254 formed in thedistal end portion 26. The coil is heat-set to enhance the connection to the snare pattern. It is also contemplated that single-leg coils (not shown) could additionally be used for attachment in the event forces required to unravel the single-leg coil are greater than the force necessary to deploy and retract thebraided structure 250. An atraumatic leading end, however, remains an objective, as well as space considerations (i.e., low profile for packing into microcatheter). - The snare devices of the present invention compared to prior art loop snares each provide improved radial opening since in an expanded state, the
elongate member 30 is positioned substantially out of the flow path. Additionally, the device embodies improved resistance to radial loads compared to prior art loop snares. Moreover, since less deformation is required to produce a desired snare pattern, in that, angles between members are provided by laser cutting rather than from local deformations, for example, there is improved stress distribution along the snare devices of the present invention compared to prior art loop snares. Additionally, a greater reduction in radial profile can be achieved without sacrificing performance and in particular, the device can be used in conjunction with microcatheters. As such, thesnare devices 20 of the present invention can be passed through narrow and tortuous vasculature. The applications of the present invention are more widespread than that of conventional snare devices because of greater retrieval characteristics while retaining the deliverability characteristics. - The above described invention is principally conceived to be operational for use in engaging for the purpose of displacing and/or removing material either foreign or native to the body, including partial or complete obstructions embolic and/or thrombotic in nature, from intraluminal or extraluminal spaces of the body including but not limited to intravascular and/or intra-arterial regions of the neurovasculature, as well as tubings, stents, or other objects that may or may not be internal to the body. The purpose of the device is to restore functionality of the luminal space or systems dependent on the particular luminal space or as a method of producing any desired effect associated with the removal or displacement of undesirable material.
- The intended delivery of the disclosed invention is by means of a commercially available catheter selected to its ability to access the desired location of engagement. The invention may be optimized for specific locations or uses by means of sizing the individual elements in the design and/or the overall dimensions, as well as selection of materials, mesh configuration, number and relative geometry of component members to meet the requirements of the operational space. Optimizations may include tabs protruding from the sides of members to increase coverage of the open areas between members, offsetting vertices of joints to increase packing efficiency, or providing unconnected distal curved path. There may additionally be variations of the dimensions of length, thickness, and width of distal and proximal tabs for joining basket with delivery wire and distal tip to provide smooth stiffness transitions from tip to basket and basket to delivery wire. Such optimizations are means of adjusting operational attributes including: flexibility, applied circumferential force, engagement effectiveness, deliverability and traversal through tortuous vasculature, and volume of material to be engaged.
- Alternate or additional materials for the basket portion of the device may include a thermoset, elastomer, thermoplastic constituents such as nylon, or other metal either pure or alloyed, as well as composite materials such as a combination of glass, aramid, or carbon in a binding matrix. A secondary mesh of the same or dissimilar material may be added to the basket. The wire portion of the device can alternatively be made from a single metal or combination of metals for kink resistance and high flexibility. Either or both components may be tapered to give a transition in stiffness that is appropriate for the vessel in which the invention is to be delivered. The distal tip of the device may incorporate concentric coils made of nitinol, stainless steel, or other metal or plastic to provide a soft flexible atraumatic end.
- An alternate method of manufacture of the basket portion of the device may be etching, or metal or polymer injection molding. Furthermore, the device may employ any combination of coatings, agents, or features including those of that result from material addition or subtraction to create grooves, bumps, three dimensional patterns, and textures on inner and/or outer surfaces or any combination thereof to promote desired properties such as adherence of materials to be engaged, radiopacity, and low friction between the device and the vessel wall or microcatheter lumen.
- In summary, the invention is deliverable to remote regions of the neurovasculature by gaining access through the use of a guidewire and microcatheter in the vasculature and subsequent deployment of the invention through the lumen of the microcatheter. In a vessel in which flow is impeded or obstructed by material and/or objects including those formed by the body such as blood clot, the device is deployed by withdrawing the microcatheter relative to the wire. Engagement occurs as the system composed of the invention and microcatheter is pulled into the material. After the material has been engaged, removal of the material is accomplished by withdrawing the system into a guide catheter lumen through which the microcatheter is passed with or without simultaneously pulling fluid through the guide lumen.
- Thus, it will be apparent from the foregoing that, while particular forms of the invention have been illustrated and described, various modifications can be made without the parting from the spirit and scope of the invention. Accordingly, it is not intended that the invention be limited, except as by the appended claims.
Claims (15)
1-53. (canceled)
54. A medical device, comprising:
an elongate member, the elongate member having a proximal end portion having a first cross-sectional profile characterized by a first height and a distal end portion having a second cross-sectional profile characterized by a second height, the first height greater than the second height; and
a second device attached to the distal end portion of the elongate member, the second device sized and shaped to collect substances from vasculature.
55. The device of claim 54 , further comprising a coil surrounding both the elongate member and a portion of the snare device.
56. The device of claim 54 , further comprising a first coil and a second coil, the first coil positioned about the elongate member proximal of the second coil.
57. The device of claim 56 , wherein the first coil and second coil are made from different materials.
58. The device of claim 57 , wherein the second coil is formed from radiopaque material.
59. The device of claim 58 , wherein the second coil is formed from about 90% platinum and about 10% iridium alloy.
60. The device of claim 54 , wherein the elongate member is tapered.
61. The device of claim 54 , wherein the distal end portion of the elongate member is tapered.
62. The device of claim 54 , wherein the distal end portion of the elongate member includes a transition point at which the elongate member gradually tapers.
63. The device of claim 51, wherein the distal end portion of the elongate member includes a transition point at which the elongate member tapers in a step-tapered manner.
64. The device of claim 54 , wherein the proximal end portion and the distal end portion of the elongate member are formed from different materials.
65. The device of claim 64 , wherein the proximal end portion is formed from stainless steel.
66. The device of claim 64 , wherein the distal end portion is formed from nitinol.
67. The device of claim 54 , wherein the snare device includes a body cut from a tube.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/125,578 US20050222607A1 (en) | 1999-12-23 | 2005-05-10 | Snare |
US12/111,870 US8142442B2 (en) | 1999-12-23 | 2008-04-29 | Snare |
US13/410,903 US9113936B2 (en) | 1999-12-23 | 2012-03-02 | Snare |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/469,431 US6402771B1 (en) | 1999-12-23 | 1999-12-23 | Snare |
US10/123,896 US6592607B1 (en) | 1999-12-23 | 2002-04-15 | Snare |
US10/457,491 US6913612B2 (en) | 1999-12-23 | 2003-06-09 | Snare |
US11/125,578 US20050222607A1 (en) | 1999-12-23 | 2005-05-10 | Snare |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/457,491 Continuation US6913612B2 (en) | 1999-12-23 | 2003-06-09 | Snare |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/111,870 Continuation US8142442B2 (en) | 1999-12-23 | 2008-04-29 | Snare |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050222607A1 true US20050222607A1 (en) | 2005-10-06 |
Family
ID=23863778
Family Applications (6)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/469,431 Expired - Lifetime US6402771B1 (en) | 1999-12-23 | 1999-12-23 | Snare |
US09/801,256 Expired - Lifetime US6641590B1 (en) | 1999-12-23 | 2001-03-06 | Snare |
US10/123,896 Expired - Lifetime US6592607B1 (en) | 1999-12-23 | 2002-04-15 | Snare |
US10/457,491 Expired - Lifetime US6913612B2 (en) | 1999-12-23 | 2003-06-09 | Snare |
US11/125,578 Abandoned US20050222607A1 (en) | 1999-12-23 | 2005-05-10 | Snare |
US12/111,870 Expired - Lifetime US8142442B2 (en) | 1999-12-23 | 2008-04-29 | Snare |
Family Applications Before (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/469,431 Expired - Lifetime US6402771B1 (en) | 1999-12-23 | 1999-12-23 | Snare |
US09/801,256 Expired - Lifetime US6641590B1 (en) | 1999-12-23 | 2001-03-06 | Snare |
US10/123,896 Expired - Lifetime US6592607B1 (en) | 1999-12-23 | 2002-04-15 | Snare |
US10/457,491 Expired - Lifetime US6913612B2 (en) | 1999-12-23 | 2003-06-09 | Snare |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/111,870 Expired - Lifetime US8142442B2 (en) | 1999-12-23 | 2008-04-29 | Snare |
Country Status (3)
Country | Link |
---|---|
US (6) | US6402771B1 (en) |
AU (1) | AU2282601A (en) |
WO (1) | WO2001045569A1 (en) |
Cited By (60)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070276468A1 (en) * | 2005-05-24 | 2007-11-29 | Inspiremd Ltd. | Bifurcated stent assemblies |
US20090019073A1 (en) * | 2001-08-29 | 2009-01-15 | Takahi Itoh | System and method for transcoding digital content |
US20090138070A1 (en) * | 2005-05-24 | 2009-05-28 | Inspiremd Ltd. | Stent Apparatuses for Treatment Via Body Lumens and Methods of Use |
US20100022951A1 (en) * | 2008-05-19 | 2010-01-28 | Luce, Forward, Hamilton 7 Scripps, Llp | Detachable hub/luer device and processes |
US7662166B2 (en) | 2000-12-19 | 2010-02-16 | Advanced Cardiocascular Systems, Inc. | Sheathless embolic protection system |
US7678131B2 (en) | 2002-10-31 | 2010-03-16 | Advanced Cardiovascular Systems, Inc. | Single-wire expandable cages for embolic filtering devices |
US7678129B1 (en) | 2004-03-19 | 2010-03-16 | Advanced Cardiovascular Systems, Inc. | Locking component for an embolic filter assembly |
US7780694B2 (en) | 1999-12-23 | 2010-08-24 | Advanced Cardiovascular Systems, Inc. | Intravascular device and system |
US7815660B2 (en) | 2002-09-30 | 2010-10-19 | Advanced Cardivascular Systems, Inc. | Guide wire with embolic filtering attachment |
US7842064B2 (en) | 2001-08-31 | 2010-11-30 | Advanced Cardiovascular Systems, Inc. | Hinged short cage for an embolic protection device |
US7867273B2 (en) | 2007-06-27 | 2011-01-11 | Abbott Laboratories | Endoprostheses for peripheral arteries and other body vessels |
US7892251B1 (en) | 2003-11-12 | 2011-02-22 | Advanced Cardiovascular Systems, Inc. | Component for delivering and locking a medical device to a guide wire |
US7918820B2 (en) | 1999-12-30 | 2011-04-05 | Advanced Cardiovascular Systems, Inc. | Device for, and method of, blocking emboli in vessels such as blood arteries |
US7959646B2 (en) | 2001-06-29 | 2011-06-14 | Abbott Cardiovascular Systems Inc. | Filter device for embolic protection systems |
US7959647B2 (en) | 2001-08-30 | 2011-06-14 | Abbott Cardiovascular Systems Inc. | Self furling umbrella frame for carotid filter |
US7972356B2 (en) | 2001-12-21 | 2011-07-05 | Abbott Cardiovascular Systems, Inc. | Flexible and conformable embolic filtering devices |
US7976560B2 (en) | 2002-09-30 | 2011-07-12 | Abbott Cardiovascular Systems Inc. | Embolic filtering devices |
US8016854B2 (en) | 2001-06-29 | 2011-09-13 | Abbott Cardiovascular Systems Inc. | Variable thickness embolic filtering devices and methods of manufacturing the same |
US8043323B2 (en) | 2006-10-18 | 2011-10-25 | Inspiremd Ltd. | In vivo filter assembly |
US8066757B2 (en) | 2007-10-17 | 2011-11-29 | Mindframe, Inc. | Blood flow restoration and thrombus management methods |
US8088140B2 (en) | 2008-05-19 | 2012-01-03 | Mindframe, Inc. | Blood flow restorative and embolus removal methods |
US8137377B2 (en) | 1999-12-23 | 2012-03-20 | Abbott Laboratories | Embolic basket |
US8142442B2 (en) | 1999-12-23 | 2012-03-27 | Abbott Laboratories | Snare |
US8177791B2 (en) | 2000-07-13 | 2012-05-15 | Abbott Cardiovascular Systems Inc. | Embolic protection guide wire |
US8216209B2 (en) | 2007-05-31 | 2012-07-10 | Abbott Cardiovascular Systems Inc. | Method and apparatus for delivering an agent to a kidney |
US8262689B2 (en) | 2001-09-28 | 2012-09-11 | Advanced Cardiovascular Systems, Inc. | Embolic filtering devices |
US8545514B2 (en) | 2008-04-11 | 2013-10-01 | Covidien Lp | Monorail neuro-microcatheter for delivery of medical devices to treat stroke, processes and products thereby |
US8585713B2 (en) | 2007-10-17 | 2013-11-19 | Covidien Lp | Expandable tip assembly for thrombus management |
US8591540B2 (en) | 2003-02-27 | 2013-11-26 | Abbott Cardiovascular Systems Inc. | Embolic filtering devices |
US8679142B2 (en) | 2008-02-22 | 2014-03-25 | Covidien Lp | Methods and apparatus for flow restoration |
US8845583B2 (en) | 1999-12-30 | 2014-09-30 | Abbott Cardiovascular Systems Inc. | Embolic protection devices |
US8926680B2 (en) | 2007-11-12 | 2015-01-06 | Covidien Lp | Aneurysm neck bridging processes with revascularization systems methods and products thereby |
US8961551B2 (en) | 2006-12-22 | 2015-02-24 | The Spectranetics Corporation | Retractable separating systems and methods |
US9028520B2 (en) | 2006-12-22 | 2015-05-12 | The Spectranetics Corporation | Tissue separating systems and methods |
US9132003B2 (en) | 2006-11-22 | 2015-09-15 | Inspiremd, Ltd. | Optimized drug-eluting stent assembly |
US9198687B2 (en) | 2007-10-17 | 2015-12-01 | Covidien Lp | Acute stroke revascularization/recanalization systems processes and products thereby |
US9220522B2 (en) | 2007-10-17 | 2015-12-29 | Covidien Lp | Embolus removal systems with baskets |
US9259305B2 (en) | 2005-03-31 | 2016-02-16 | Abbott Cardiovascular Systems Inc. | Guide wire locking mechanism for rapid exchange and other catheter systems |
US9271746B2 (en) | 2006-10-06 | 2016-03-01 | Cook Medical Technologies Llc | Retrieval snare for extracting foreign objects from body cavities and method for manufacturing thereof |
US9283040B2 (en) | 2013-03-13 | 2016-03-15 | The Spectranetics Corporation | Device and method of ablative cutting with helical tip |
US9291663B2 (en) | 2013-03-13 | 2016-03-22 | The Spectranetics Corporation | Alarm for lead insulation abnormality |
US9413896B2 (en) | 2012-09-14 | 2016-08-09 | The Spectranetics Corporation | Tissue slitting methods and systems |
USD765243S1 (en) | 2015-02-20 | 2016-08-30 | The Spectranetics Corporation | Medical device handle |
US9456872B2 (en) | 2013-03-13 | 2016-10-04 | The Spectranetics Corporation | Laser ablation catheter |
USD770616S1 (en) | 2015-02-20 | 2016-11-01 | The Spectranetics Corporation | Medical device handle |
US9603618B2 (en) | 2013-03-15 | 2017-03-28 | The Spectranetics Corporation | Medical device for removing an implanted object |
US9668765B2 (en) | 2013-03-15 | 2017-06-06 | The Spectranetics Corporation | Retractable blade for lead removal device |
US9883885B2 (en) | 2013-03-13 | 2018-02-06 | The Spectranetics Corporation | System and method of ablative cutting and pulsed vacuum aspiration |
US9925366B2 (en) | 2013-03-15 | 2018-03-27 | The Spectranetics Corporation | Surgical instrument for removing an implanted object |
US9980743B2 (en) | 2013-03-15 | 2018-05-29 | The Spectranetics Corporation | Medical device for removing an implanted object using laser cut hypotubes |
US10123803B2 (en) | 2007-10-17 | 2018-11-13 | Covidien Lp | Methods of managing neurovascular obstructions |
US10137015B2 (en) | 2006-10-18 | 2018-11-27 | Inspiremd Ltd. | Knitted stent jackets |
US10136913B2 (en) | 2013-03-15 | 2018-11-27 | The Spectranetics Corporation | Multiple configuration surgical cutting device |
US10383691B2 (en) | 2013-03-13 | 2019-08-20 | The Spectranetics Corporation | Last catheter with helical internal lumen |
US10405924B2 (en) | 2014-05-30 | 2019-09-10 | The Spectranetics Corporation | System and method of ablative cutting and vacuum aspiration through primary orifice and auxiliary side port |
US10448999B2 (en) | 2013-03-15 | 2019-10-22 | The Spectranetics Corporation | Surgical instrument for removing an implanted object |
US10722255B2 (en) | 2008-12-23 | 2020-07-28 | Covidien Lp | Systems and methods for removing obstructive matter from body lumens and treating vascular defects |
US10835279B2 (en) | 2013-03-14 | 2020-11-17 | Spectranetics Llc | Distal end supported tissue slitting apparatus |
US10842532B2 (en) | 2013-03-15 | 2020-11-24 | Spectranetics Llc | Medical device for removing an implanted object |
US11337714B2 (en) | 2007-10-17 | 2022-05-24 | Covidien Lp | Restoring blood flow and clot removal during acute ischemic stroke |
Families Citing this family (230)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7491216B2 (en) | 1997-11-07 | 2009-02-17 | Salviac Limited | Filter element with retractable guidewire tip |
DE69838952T2 (en) | 1997-11-07 | 2009-01-02 | Salviac Ltd. | EMBOLISM PROTECTION DEVICE |
US6382214B1 (en) | 1998-04-24 | 2002-05-07 | American Medical Systems, Inc. | Methods and apparatus for correction of urinary and gynecological pathologies including treatment of male incontinence and female cystocele |
US7314477B1 (en) | 1998-09-25 | 2008-01-01 | C.R. Bard Inc. | Removable embolus blood clot filter and filter delivery unit |
US6964672B2 (en) | 1999-05-07 | 2005-11-15 | Salviac Limited | Support frame for an embolic protection device |
US6918921B2 (en) | 1999-05-07 | 2005-07-19 | Salviac Limited | Support frame for an embolic protection device |
US6458139B1 (en) * | 1999-06-21 | 2002-10-01 | Endovascular Technologies, Inc. | Filter/emboli extractor for use in variable sized blood vessels |
US9113936B2 (en) * | 1999-12-23 | 2015-08-25 | Abbott Laboratories | Snare |
GB2369575A (en) | 2000-04-20 | 2002-06-05 | Salviac Ltd | An embolic protection system |
US6939362B2 (en) * | 2001-11-27 | 2005-09-06 | Advanced Cardiovascular Systems, Inc. | Offset proximal cage for embolic filtering devices |
US6824545B2 (en) * | 2000-06-29 | 2004-11-30 | Concentric Medical, Inc. | Systems, methods and devices for removing obstructions from a blood vessel |
US8298257B2 (en) | 2000-06-29 | 2012-10-30 | Concentric Medical, Inc. | Systems, methods and devices for removing obstructions from a blood vessel |
US7179275B2 (en) * | 2001-06-18 | 2007-02-20 | Rex Medical, L.P. | Vein filter |
US8282668B2 (en) * | 2001-06-18 | 2012-10-09 | Rex Medical, L.P. | Vein filter |
US6783538B2 (en) | 2001-06-18 | 2004-08-31 | Rex Medical, L.P | Removable vein filter |
CA2455349C (en) * | 2001-06-18 | 2011-02-15 | Rex Medical, L.P. | Vein filter |
US6793665B2 (en) | 2001-06-18 | 2004-09-21 | Rex Medical, L.P. | Multiple access vein filter |
JP4567918B2 (en) * | 2001-07-02 | 2010-10-27 | テルモ株式会社 | Intravascular foreign matter removal wire and medical device |
US6951570B2 (en) * | 2001-07-02 | 2005-10-04 | Rubicon Medical, Inc. | Methods, systems, and devices for deploying a filter from a filter device |
US6551342B1 (en) * | 2001-08-24 | 2003-04-22 | Endovascular Technologies, Inc. | Embolic filter |
US20040138692A1 (en) * | 2003-01-13 | 2004-07-15 | Scimed Life Systems, Inc. | Embolus extractor |
US7749243B2 (en) * | 2001-10-19 | 2010-07-06 | Boston Scientific Scimed, Inc. | Embolus extractor |
WO2003055412A2 (en) | 2001-12-21 | 2003-07-10 | Salviac Limited | A support frame for an embolic protection device |
US9204956B2 (en) | 2002-02-20 | 2015-12-08 | C. R. Bard, Inc. | IVC filter with translating hooks |
US7029440B2 (en) * | 2002-03-13 | 2006-04-18 | Scimed Life Systems, Inc. | Distal protection filter and method of manufacture |
US7037313B2 (en) * | 2002-03-19 | 2006-05-02 | Fibrex, Llc | Apparatus for stripping fibrin from a catheter |
US20030187495A1 (en) | 2002-04-01 | 2003-10-02 | Cully Edward H. | Endoluminal devices, embolic filters, methods of manufacture and use |
DE10233085B4 (en) | 2002-07-19 | 2014-02-20 | Dendron Gmbh | Stent with guide wire |
US7058456B2 (en) * | 2002-08-09 | 2006-06-06 | Concentric Medical, Inc. | Methods and devices for changing the shape of a medical device |
US8394236B2 (en) | 2002-10-07 | 2013-03-12 | Georgia-Pacific Consumer Products Lp | Absorbent sheet of cellulosic fibers |
US20040093012A1 (en) | 2002-10-17 | 2004-05-13 | Cully Edward H. | Embolic filter frame having looped support strut elements |
US20040138693A1 (en) * | 2003-01-14 | 2004-07-15 | Scimed Life Systems, Inc. | Snare retrievable embolic protection filter with guidewire stopper |
EP1648340B1 (en) | 2003-05-19 | 2010-03-03 | SeptRx, Inc. | Tissue distention device and related methods for therapeutic intervention |
JP2007503918A (en) * | 2003-09-04 | 2007-03-01 | セカント メディカル エルエルシー | Intravascular snare for capturing and removing arterial emboli |
US7192435B2 (en) * | 2003-09-18 | 2007-03-20 | Cardia, Inc. | Self centering closure device for septal occlusion |
US7344550B2 (en) * | 2003-10-21 | 2008-03-18 | Boston Scientific Scimed, Inc. | Clot removal device |
US7338512B2 (en) * | 2004-01-22 | 2008-03-04 | Rex Medical, L.P. | Vein filter |
US9510929B2 (en) | 2004-01-22 | 2016-12-06 | Argon Medical Devices, Inc. | Vein filter |
US8500774B2 (en) | 2004-01-22 | 2013-08-06 | Rex Medical, L.P. | Vein filter |
US8162972B2 (en) | 2004-01-22 | 2012-04-24 | Rex Medical, Lp | Vein filter |
US7976562B2 (en) | 2004-01-22 | 2011-07-12 | Rex Medical, L.P. | Method of removing a vein filter |
US7704266B2 (en) | 2004-01-22 | 2010-04-27 | Rex Medical, L.P. | Vein filter |
US8211140B2 (en) | 2004-01-22 | 2012-07-03 | Rex Medical, L.P. | Vein filter |
US8062326B2 (en) | 2004-01-22 | 2011-11-22 | Rex Medical, L.P. | Vein filter |
EP1722697B1 (en) * | 2004-03-08 | 2010-11-24 | Radius Medical Technologies, Inc. | Small-diameter snare |
US20070118165A1 (en) * | 2004-03-08 | 2007-05-24 | Demello Jonathan R | System and method for removal of material from a blood vessel using a small diameter catheter |
US20080228209A1 (en) * | 2004-03-08 | 2008-09-18 | Demello Richard M | System and method for removal of material from a blood vessel using a small diameter catheter |
WO2005094283A2 (en) | 2004-03-25 | 2005-10-13 | Hauser David L | Vascular filter device |
JP2008502378A (en) | 2004-05-25 | 2008-01-31 | チェストナット メディカル テクノロジーズ インコーポレイテッド | Flexible vascular closure device |
US8628564B2 (en) | 2004-05-25 | 2014-01-14 | Covidien Lp | Methods and apparatus for luminal stenting |
WO2010120926A1 (en) | 2004-05-25 | 2010-10-21 | Chestnut Medical Technologies, Inc. | Vascular stenting for aneurysms |
US20060206200A1 (en) | 2004-05-25 | 2006-09-14 | Chestnut Medical Technologies, Inc. | Flexible vascular occluding device |
US8617234B2 (en) | 2004-05-25 | 2013-12-31 | Covidien Lp | Flexible vascular occluding device |
US20050283166A1 (en) * | 2004-06-17 | 2005-12-22 | Secant Medical, Llc | Expandible snare |
US7704267B2 (en) | 2004-08-04 | 2010-04-27 | C. R. Bard, Inc. | Non-entangling vena cava filter |
US7931659B2 (en) * | 2004-09-10 | 2011-04-26 | Penumbra, Inc. | System and method for treating ischemic stroke |
US9655633B2 (en) * | 2004-09-10 | 2017-05-23 | Penumbra, Inc. | System and method for treating ischemic stroke |
CA2844155A1 (en) | 2004-09-27 | 2006-04-06 | Rex Medical, L.P. | Vein filter |
WO2006042114A1 (en) | 2004-10-06 | 2006-04-20 | Cook, Inc. | Emboli capturing device having a coil and method for capturing emboli |
US7794473B2 (en) | 2004-11-12 | 2010-09-14 | C.R. Bard, Inc. | Filter delivery system |
US8267954B2 (en) | 2005-02-04 | 2012-09-18 | C. R. Bard, Inc. | Vascular filter with sensing capability |
US7998164B2 (en) * | 2005-03-11 | 2011-08-16 | Boston Scientific Scimed, Inc. | Intravascular filter with centering member |
US8945169B2 (en) | 2005-03-15 | 2015-02-03 | Cook Medical Technologies Llc | Embolic protection device |
US8221446B2 (en) | 2005-03-15 | 2012-07-17 | Cook Medical Technologies | Embolic protection device |
US20060224175A1 (en) * | 2005-03-29 | 2006-10-05 | Vrba Anthony C | Methods and apparatuses for disposition of a medical device onto an elongate medical device |
CA2607580C (en) | 2005-05-12 | 2016-12-20 | C.R. Bard Inc. | Removable embolus blood clot filter |
AU2005332044B2 (en) | 2005-05-25 | 2012-01-19 | Covidien Lp | System and method for delivering and deploying and occluding device within a vessel |
US7850708B2 (en) * | 2005-06-20 | 2010-12-14 | Cook Incorporated | Embolic protection device having a reticulated body with staggered struts |
US8109962B2 (en) | 2005-06-20 | 2012-02-07 | Cook Medical Technologies Llc | Retrievable device having a reticulation portion with staggered struts |
US20060293697A1 (en) * | 2005-06-23 | 2006-12-28 | Terumo Kabushiki Kaisha | Wire for removing an intravascular foreign body and medical instrument |
US7771452B2 (en) | 2005-07-12 | 2010-08-10 | Cook Incorporated | Embolic protection device with a filter bag that disengages from a basket |
US7766934B2 (en) | 2005-07-12 | 2010-08-03 | Cook Incorporated | Embolic protection device with an integral basket and bag |
US8187298B2 (en) | 2005-08-04 | 2012-05-29 | Cook Medical Technologies Llc | Embolic protection device having inflatable frame |
CA2616818C (en) | 2005-08-09 | 2014-08-05 | C.R. Bard, Inc. | Embolus blood clot filter and delivery system |
US8377092B2 (en) | 2005-09-16 | 2013-02-19 | Cook Medical Technologies Llc | Embolic protection device |
US8632562B2 (en) | 2005-10-03 | 2014-01-21 | Cook Medical Technologies Llc | Embolic protection device |
US8182508B2 (en) | 2005-10-04 | 2012-05-22 | Cook Medical Technologies Llc | Embolic protection device |
EP1949862A1 (en) * | 2005-10-17 | 2008-07-30 | JMS Co., Ltd. | Grasping tool |
US8252017B2 (en) | 2005-10-18 | 2012-08-28 | Cook Medical Technologies Llc | Invertible filter for embolic protection |
US8216269B2 (en) | 2005-11-02 | 2012-07-10 | Cook Medical Technologies Llc | Embolic protection device having reduced profile |
US8152831B2 (en) | 2005-11-17 | 2012-04-10 | Cook Medical Technologies Llc | Foam embolic protection device |
CA2630217C (en) | 2005-11-18 | 2016-10-11 | C.R. Bard, Inc. | Vena cava filter with filament |
EP1986568B1 (en) | 2006-02-03 | 2017-04-05 | Covidien LP | Methods and devices for restoring blood flow within blocked vasculature |
WO2007100556A1 (en) | 2006-02-22 | 2007-09-07 | Ev3 Inc. | Embolic protection systems having radiopaque filter mesh |
WO2007133366A2 (en) | 2006-05-02 | 2007-11-22 | C. R. Bard, Inc. | Vena cava filter formed from a sheet |
US8118859B2 (en) * | 2006-05-26 | 2012-02-21 | Codman & Shurtleff, Inc. | Occlusion device combination of stent and mesh having offset parallelogram porosity |
US9326842B2 (en) | 2006-06-05 | 2016-05-03 | C. R . Bard, Inc. | Embolus blood clot filter utilizable with a single delivery system or a single retrieval system in one of a femoral or jugular access |
US8388573B1 (en) | 2006-06-28 | 2013-03-05 | Abbott Cardiovascular Systems Inc. | Local delivery with a balloon covered by a cage |
US7655013B2 (en) * | 2006-07-06 | 2010-02-02 | Bruce Kirke Bieneman | Snare retrieval device |
US10076401B2 (en) | 2006-08-29 | 2018-09-18 | Argon Medical Devices, Inc. | Vein filter |
US20080071307A1 (en) | 2006-09-19 | 2008-03-20 | Cook Incorporated | Apparatus and methods for in situ embolic protection |
US20080269774A1 (en) | 2006-10-26 | 2008-10-30 | Chestnut Medical Technologies, Inc. | Intracorporeal Grasping Device |
US9901434B2 (en) | 2007-02-27 | 2018-02-27 | Cook Medical Technologies Llc | Embolic protection device including a Z-stent waist band |
US8795351B2 (en) | 2007-04-13 | 2014-08-05 | C.R. Bard, Inc. | Migration resistant embolic filter |
US10076346B2 (en) | 2007-04-17 | 2018-09-18 | Covidien Lp | Complex wire formed devices |
US10064635B2 (en) * | 2007-04-17 | 2018-09-04 | Covidien Lp | Articulating retrieval devices |
US11202646B2 (en) | 2007-04-17 | 2021-12-21 | Covidien Lp | Articulating retrieval devices |
US8535334B2 (en) | 2007-04-17 | 2013-09-17 | Lazarus Effect, Inc. | Complex wire formed devices |
US20080275489A1 (en) * | 2007-05-01 | 2008-11-06 | Thomas Frank Kinst | Removable medical filter |
US20080294189A1 (en) * | 2007-05-23 | 2008-11-27 | Moll Fransiscus L | Vein filter |
US8419748B2 (en) | 2007-09-14 | 2013-04-16 | Cook Medical Technologies Llc | Helical thrombus removal device |
US8252018B2 (en) | 2007-09-14 | 2012-08-28 | Cook Medical Technologies Llc | Helical embolic protection device |
US9138307B2 (en) | 2007-09-14 | 2015-09-22 | Cook Medical Technologies Llc | Expandable device for treatment of a stricture in a body vessel |
US8100855B2 (en) | 2007-09-17 | 2012-01-24 | Abbott Cardiovascular Systems, Inc. | Methods and devices for eluting agents to a vessel |
US20100174309A1 (en) * | 2008-05-19 | 2010-07-08 | Mindframe, Inc. | Recanalization/revascularization and embolus addressing systems including expandable tip neuro-microcatheter |
ES2579527T3 (en) * | 2007-12-19 | 2016-08-12 | Covidien Lp | Enhanced devices and methods to remove the plunger during acute ischemic stroke |
JP5385302B2 (en) | 2007-12-26 | 2014-01-08 | ラザラス エフェクト, インコーポレイテッド | Recovery system and method of use |
WO2011135556A1 (en) * | 2010-04-28 | 2011-11-03 | Neuravi Limited | Clot engagement and removal systems |
US9402707B2 (en) | 2008-07-22 | 2016-08-02 | Neuravi Limited | Clot capture systems and associated methods |
WO2010010545A1 (en) * | 2008-07-22 | 2010-01-28 | Neuravi Limited | Clot capture systems and associated methods |
EP2349126A4 (en) * | 2008-11-18 | 2012-12-26 | Syde A Taheri | Grasper system |
US8388644B2 (en) | 2008-12-29 | 2013-03-05 | Cook Medical Technologies Llc | Embolic protection device and method of use |
US20100191168A1 (en) | 2009-01-29 | 2010-07-29 | Trustees Of Tufts College | Endovascular cerebrospinal fluid shunt |
US20100204672A1 (en) * | 2009-02-12 | 2010-08-12 | Penumra, Inc. | System and method for treating ischemic stroke |
EP2403583B1 (en) | 2009-03-06 | 2016-10-19 | Lazarus Effect, Inc. | Retrieval systems |
US8357179B2 (en) * | 2009-07-08 | 2013-01-22 | Concentric Medical, Inc. | Vascular and bodily duct treatment devices and methods |
US8529596B2 (en) | 2009-07-08 | 2013-09-10 | Concentric Medical, Inc. | Vascular and bodily duct treatment devices and methods |
US8357178B2 (en) * | 2009-07-08 | 2013-01-22 | Concentric Medical, Inc. | Vascular and bodily duct treatment devices and methods |
US8795317B2 (en) * | 2009-07-08 | 2014-08-05 | Concentric Medical, Inc. | Embolic obstruction retrieval devices and methods |
US8795345B2 (en) * | 2009-07-08 | 2014-08-05 | Concentric Medical, Inc. | Vascular and bodily duct treatment devices and methods |
US20110009941A1 (en) * | 2009-07-08 | 2011-01-13 | Concentric Medical, Inc. | Vascular and bodily duct treatment devices and methods |
EP3505136A1 (en) | 2009-07-29 | 2019-07-03 | C.R. Bard Inc. | Tubular filter |
EP2319334A1 (en) | 2009-10-27 | 2011-05-11 | Philip Morris Products S.A. | A smoking system having a liquid storage portion |
WO2011091383A1 (en) | 2010-01-22 | 2011-07-28 | Lazarus Effect, Inc. | Retrieval systems and methods for use thereof |
US20110238078A1 (en) * | 2010-03-29 | 2011-09-29 | Cook Medical Technologies Llc | Device and method for positioning an implanted structure to facilitate removal |
WO2011130256A2 (en) | 2010-04-13 | 2011-10-20 | Lumen Biomedical, Inc. | Embolectomy devices and methods for treatment of acute ischemic stroke condition |
WO2012009675A2 (en) | 2010-07-15 | 2012-01-19 | Lazarus Effect, Inc. | Retrieval systems and methods for use thereof |
US9039749B2 (en) | 2010-10-01 | 2015-05-26 | Covidien Lp | Methods and apparatuses for flow restoration and implanting members in the human body |
EP2629684B1 (en) | 2010-10-22 | 2018-07-25 | Neuravi Limited | Clot engagement and removal system |
WO2012064726A1 (en) * | 2010-11-12 | 2012-05-18 | Stryker Corporation | Axially variable radial pressure cages for clot capture |
CA2826615A1 (en) | 2011-02-04 | 2012-08-09 | Concentric Medical, Inc. | Vascular and bodily duct treatment devices and methods |
US9301769B2 (en) | 2011-03-09 | 2016-04-05 | Neuravi Limited | Clot retrieval device for removing clot from a blood vessel |
US11259824B2 (en) | 2011-03-09 | 2022-03-01 | Neuravi Limited | Clot retrieval device for removing occlusive clot from a blood vessel |
SG2014013320A (en) | 2011-05-23 | 2014-07-30 | Lazarus Effect Inc | Retrieval systems and methods for use thereof |
WO2013023121A1 (en) * | 2011-08-11 | 2013-02-14 | Boston Scientific Scimed, Inc. | Expandable scaffold with cutting elements mounted thereto |
US20140309673A1 (en) * | 2011-11-11 | 2014-10-16 | Nathan John Dacuycuy | Devices for removing vessel occlusions |
JP6069348B2 (en) * | 2011-12-16 | 2017-02-01 | ストライカー コーポレイションStryker Corporation | Embolization removal cage |
DE102012010687B4 (en) | 2012-05-30 | 2021-08-19 | ADMEDES GmbH | A method for producing a body implant, an assembly comprising a guide wire and a body implant, and a medical instrument |
US9204887B2 (en) | 2012-08-14 | 2015-12-08 | W. L. Gore & Associates, Inc. | Devices and systems for thrombus treatment |
US9114001B2 (en) | 2012-10-30 | 2015-08-25 | Covidien Lp | Systems for attaining a predetermined porosity of a vascular device |
US9456834B2 (en) | 2012-10-31 | 2016-10-04 | Covidien Lp | Thrombectomy device with distal protection |
US9452070B2 (en) | 2012-10-31 | 2016-09-27 | Covidien Lp | Methods and systems for increasing a density of a region of a vascular device |
US9943427B2 (en) | 2012-11-06 | 2018-04-17 | Covidien Lp | Shaped occluding devices and methods of using the same |
US8784434B2 (en) | 2012-11-20 | 2014-07-22 | Inceptus Medical, Inc. | Methods and apparatus for treating embolism |
US9157174B2 (en) | 2013-02-05 | 2015-10-13 | Covidien Lp | Vascular device for aneurysm treatment and providing blood flow into a perforator vessel |
US9642635B2 (en) | 2013-03-13 | 2017-05-09 | Neuravi Limited | Clot removal device |
ES2960917T3 (en) | 2013-03-14 | 2024-03-07 | Neuravi Ltd | Clot retrieval device to remove occlusive clots from a blood vessel |
US9433429B2 (en) | 2013-03-14 | 2016-09-06 | Neuravi Limited | Clot retrieval devices |
WO2014140092A2 (en) | 2013-03-14 | 2014-09-18 | Neuravi Limited | Devices and methods for removal of acute blockages from blood vessels |
US8690907B1 (en) | 2013-03-15 | 2014-04-08 | Insera Therapeutics, Inc. | Vascular treatment methods |
US8679150B1 (en) | 2013-03-15 | 2014-03-25 | Insera Therapeutics, Inc. | Shape-set textile structure based mechanical thrombectomy methods |
US8715314B1 (en) | 2013-03-15 | 2014-05-06 | Insera Therapeutics, Inc. | Vascular treatment measurement methods |
US10105159B2 (en) * | 2013-03-15 | 2018-10-23 | W.L. Gore Associates, Inc | Recanalization device |
SG10201709513PA (en) | 2013-03-15 | 2018-01-30 | Insera Therapeutics Inc | Vascular treatment devices and methods |
EP2968730B1 (en) | 2013-03-15 | 2019-01-09 | Bitol Designs, LLC | Occlusion resistant catheter and method of use |
US10111676B2 (en) | 2013-05-01 | 2018-10-30 | Cook Medical Technologies Llc | Looped clot retriever wire |
US9402708B2 (en) | 2013-07-25 | 2016-08-02 | Covidien Lp | Vascular devices and methods with distal protection |
US10076399B2 (en) | 2013-09-13 | 2018-09-18 | Covidien Lp | Endovascular device engagement |
WO2015061365A1 (en) | 2013-10-21 | 2015-04-30 | Inceptus Medical, Llc | Methods and apparatus for treating embolism |
EP3998100A1 (en) | 2014-01-15 | 2022-05-18 | Tufts Medical Center, Inc. | Endovascular cerebrospinal fluid shunt system |
US9737696B2 (en) | 2014-01-15 | 2017-08-22 | Tufts Medical Center, Inc. | Endovascular cerebrospinal fluid shunt |
US9730701B2 (en) | 2014-01-16 | 2017-08-15 | Boston Scientific Scimed, Inc. | Retrieval wire centering device |
JP5695259B1 (en) * | 2014-02-19 | 2015-04-01 | 株式会社World Medish | High flexibility stent |
US10285720B2 (en) | 2014-03-11 | 2019-05-14 | Neuravi Limited | Clot retrieval system for removing occlusive clot from a blood vessel |
US10441301B2 (en) | 2014-06-13 | 2019-10-15 | Neuravi Limited | Devices and methods for removal of acute blockages from blood vessels |
US10792056B2 (en) | 2014-06-13 | 2020-10-06 | Neuravi Limited | Devices and methods for removal of acute blockages from blood vessels |
US10265086B2 (en) | 2014-06-30 | 2019-04-23 | Neuravi Limited | System for removing a clot from a blood vessel |
US9801643B2 (en) * | 2014-09-02 | 2017-10-31 | Cook Medical Technologies Llc | Clot retrieval catheter |
CN107148293B (en) | 2014-10-31 | 2020-08-11 | 西瑞维斯克有限责任公司 | Methods and systems for treating hydrocephalus |
US10617435B2 (en) * | 2014-11-26 | 2020-04-14 | Neuravi Limited | Clot retrieval device for removing clot from a blood vessel |
US11253278B2 (en) | 2014-11-26 | 2022-02-22 | Neuravi Limited | Clot retrieval system for removing occlusive clot from a blood vessel |
EP3223723B1 (en) | 2014-11-26 | 2020-01-08 | Neuravi Limited | A clot retrieval device for removing occlusive clot from a blood vessel |
US11771446B2 (en) | 2020-10-19 | 2023-10-03 | Anaconda Biomed, S.L. | Thrombectomy system and method of use |
ES2577288B8 (en) | 2015-01-13 | 2019-01-10 | Anaconda Biomed S L | Device for thrombectomy |
WO2016130647A1 (en) | 2015-02-11 | 2016-08-18 | Lazarus Effect, Inc. | Expandable tip medical devices and methods |
EP3344184A4 (en) | 2015-09-01 | 2019-05-15 | Mivi Neuroscience, Inc. | Thrombectomy devices and treatment of acute ischemic stroke with thrombus engagement |
EP3364891B1 (en) | 2015-10-23 | 2023-08-09 | Inari Medical, Inc. | Device for intravascular treatment of vascular occlusion |
JP6820612B2 (en) | 2015-10-30 | 2021-01-27 | セレバスク,インコーポレイテッド | Hydrocephalus treatment system and method |
CN108601599B (en) * | 2015-11-25 | 2021-08-13 | 尼尔拉维有限公司 | Clot retrieval device for removing an occluded clot from a blood vessel |
CA3014315C (en) | 2016-02-10 | 2022-03-01 | Microvention, Inc. | Intravascular treatment site access |
JP2019508201A (en) | 2016-02-16 | 2019-03-28 | インセラ セラピューティクス,インク. | Suction device and fixed blood flow bypass device |
AU2017312421A1 (en) | 2016-08-17 | 2019-03-07 | Neuravi Limited | A clot retrieval system for removing occlusive clot from a blood vessel |
MX2019002565A (en) | 2016-09-06 | 2019-09-18 | Neuravi Ltd | A clot retrieval device for removing occlusive clot from a blood vessel. |
EP3528717A4 (en) | 2016-10-24 | 2020-09-02 | Inari Medical, Inc. | Devices and methods for treating vascular occlusion |
US11129630B2 (en) | 2017-05-12 | 2021-09-28 | Covidien Lp | Retrieval of material from vessel lumens |
US11191555B2 (en) | 2017-05-12 | 2021-12-07 | Covidien Lp | Retrieval of material from vessel lumens |
US10709464B2 (en) | 2017-05-12 | 2020-07-14 | Covidien Lp | Retrieval of material from vessel lumens |
US11298145B2 (en) | 2017-05-12 | 2022-04-12 | Covidien Lp | Retrieval of material from vessel lumens |
US10722257B2 (en) | 2017-05-12 | 2020-07-28 | Covidien Lp | Retrieval of material from vessel lumens |
WO2018232044A1 (en) | 2017-06-12 | 2018-12-20 | Covidien Lp | Tools for sheathing treatment devices and associated systems and methods |
US10478322B2 (en) | 2017-06-19 | 2019-11-19 | Covidien Lp | Retractor device for transforming a retrieval device from a deployed position to a delivery position |
US10575864B2 (en) | 2017-06-22 | 2020-03-03 | Covidien Lp | Securing element for resheathing an intravascular device and associated systems and methods |
WO2019050765A1 (en) | 2017-09-06 | 2019-03-14 | Inari Medical, Inc. | Hemostasis valves and methods of use |
US10334119B2 (en) | 2017-10-13 | 2019-06-25 | Advanced Messaging Technologies, Inc. | Transparent fax call processing in a mobile device |
US11154314B2 (en) | 2018-01-26 | 2021-10-26 | Inari Medical, Inc. | Single insertion delivery system for treating embolism and associated systems and methods |
US10092309B1 (en) | 2018-02-02 | 2018-10-09 | Highway 1 Medical, Inc. | Devices for retrieving an obstruction in a bodily duct of a patient |
US11013900B2 (en) | 2018-03-08 | 2021-05-25 | CereVasc, Inc. | Systems and methods for minimally invasive drug delivery to a subarachnoid space |
CN112118794A (en) * | 2018-04-30 | 2020-12-22 | 波士顿科学有限公司 | System and method for target size estimation |
US11559382B2 (en) | 2018-08-13 | 2023-01-24 | Inari Medical, Inc. | System for treating embolism and associated devices and methods |
US10842498B2 (en) | 2018-09-13 | 2020-11-24 | Neuravi Limited | Systems and methods of restoring perfusion to a vessel |
US11406416B2 (en) | 2018-10-02 | 2022-08-09 | Neuravi Limited | Joint assembly for vasculature obstruction capture device |
EP3908212B1 (en) | 2019-01-11 | 2023-03-22 | Anaconda Biomed, S.L. | Loading device for loading a medical device into a catheter |
JP2020142074A (en) | 2019-03-04 | 2020-09-10 | ニューラヴィ・リミテッド | Actuated clot retrieval catheter |
EP3998962A1 (en) | 2019-07-17 | 2022-05-25 | Boston Scientific Scimed, Inc. | Left atrial appendage implant with continuous covering |
EP3986284A1 (en) | 2019-08-30 | 2022-04-27 | Boston Scientific Scimed, Inc. | Left atrial appendage implant with sealing disk |
EP3791815A1 (en) | 2019-09-11 | 2021-03-17 | Neuravi Limited | Expandable mouth catheter |
CA3157521A1 (en) | 2019-10-16 | 2021-04-22 | Inari Medical, Inc. | Systems, devices, and methods for treating vascular occlusions |
US11712231B2 (en) | 2019-10-29 | 2023-08-01 | Neuravi Limited | Proximal locking assembly design for dual stent mechanical thrombectomy device |
US11839725B2 (en) | 2019-11-27 | 2023-12-12 | Neuravi Limited | Clot retrieval device with outer sheath and inner catheter |
US11779364B2 (en) | 2019-11-27 | 2023-10-10 | Neuravi Limited | Actuated expandable mouth thrombectomy catheter |
US11517340B2 (en) | 2019-12-03 | 2022-12-06 | Neuravi Limited | Stentriever devices for removing an occlusive clot from a vessel and methods thereof |
US11944327B2 (en) | 2020-03-05 | 2024-04-02 | Neuravi Limited | Expandable mouth aspirating clot retrieval catheter |
US11633198B2 (en) | 2020-03-05 | 2023-04-25 | Neuravi Limited | Catheter proximal joint |
US11903589B2 (en) | 2020-03-24 | 2024-02-20 | Boston Scientific Scimed, Inc. | Medical system for treating a left atrial appendage |
US11883043B2 (en) | 2020-03-31 | 2024-01-30 | DePuy Synthes Products, Inc. | Catheter funnel extension |
US11759217B2 (en) | 2020-04-07 | 2023-09-19 | Neuravi Limited | Catheter tubular support |
US11730501B2 (en) | 2020-04-17 | 2023-08-22 | Neuravi Limited | Floating clot retrieval device for removing clots from a blood vessel |
US11717308B2 (en) | 2020-04-17 | 2023-08-08 | Neuravi Limited | Clot retrieval device for removing heterogeneous clots from a blood vessel |
US11871946B2 (en) | 2020-04-17 | 2024-01-16 | Neuravi Limited | Clot retrieval device for removing clot from a blood vessel |
WO2021247669A1 (en) * | 2020-06-05 | 2021-12-09 | Gravity Medical Technology, Inc. | Methods and apparatus for restoring flow |
US11737771B2 (en) | 2020-06-18 | 2023-08-29 | Neuravi Limited | Dual channel thrombectomy device |
US11937836B2 (en) | 2020-06-22 | 2024-03-26 | Neuravi Limited | Clot retrieval system with expandable clot engaging framework |
US11395669B2 (en) | 2020-06-23 | 2022-07-26 | Neuravi Limited | Clot retrieval device with flexible collapsible frame |
US11439418B2 (en) | 2020-06-23 | 2022-09-13 | Neuravi Limited | Clot retrieval device for removing clot from a blood vessel |
US11864781B2 (en) | 2020-09-23 | 2024-01-09 | Neuravi Limited | Rotating frame thrombectomy device |
US11937837B2 (en) | 2020-12-29 | 2024-03-26 | Neuravi Limited | Fibrin rich / soft clot mechanical thrombectomy device |
US11872354B2 (en) | 2021-02-24 | 2024-01-16 | Neuravi Limited | Flexible catheter shaft frame with seam |
US11679195B2 (en) | 2021-04-27 | 2023-06-20 | Contego Medical, Inc. | Thrombus aspiration system and methods for controlling blood loss |
US11937839B2 (en) | 2021-09-28 | 2024-03-26 | Neuravi Limited | Catheter with electrically actuated expandable mouth |
CN116549056A (en) * | 2022-01-29 | 2023-08-08 | 苏州徕瑞医疗技术有限公司 | Intravascular interventional device |
Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4152777A (en) * | 1977-11-21 | 1979-05-01 | Burroughs Corporation | On chip buffering for optimizing performance of a bubble memory |
US4347846A (en) * | 1979-12-07 | 1982-09-07 | Porges | Surgical extractor |
US4611594A (en) * | 1984-04-11 | 1986-09-16 | Northwestern University | Medical instrument for containment and removal of calculi |
US4619246A (en) * | 1984-05-23 | 1986-10-28 | William Cook, Europe A/S | Collapsible filter basket |
US4865017A (en) * | 1987-07-10 | 1989-09-12 | Olympus Optical Co., Ltd. | Endoscopic operation instrument |
US4873978A (en) * | 1987-12-04 | 1989-10-17 | Robert Ginsburg | Device and method for emboli retrieval |
US4969891A (en) * | 1989-03-06 | 1990-11-13 | Gewertz Bruce L | Removable vascular filter |
US4990156A (en) * | 1988-06-21 | 1991-02-05 | Lefebvre Jean Marie | Filter for medical use |
US4998539A (en) * | 1987-12-18 | 1991-03-12 | Delsanti Gerard L | Method of using removable endo-arterial devices to repair detachments in the arterial walls |
US5171233A (en) * | 1990-04-25 | 1992-12-15 | Microvena Corporation | Snare-type probe |
US5192286A (en) * | 1991-07-26 | 1993-03-09 | Regents Of The University Of California | Method and device for retrieving materials from body lumens |
US5234458A (en) * | 1990-06-15 | 1993-08-10 | Antheor | Filter device intended to prevent embolisms |
US5330482A (en) * | 1991-06-17 | 1994-07-19 | Wilson-Cook Medical Inc. | Endoscopic extraction devices, wire basket stone extractors, stent retrievers, snares and method of constructing the same |
US5383887A (en) * | 1992-12-28 | 1995-01-24 | Celsa Lg | Device for selectively forming a temporary blood filter |
US5486183A (en) * | 1990-10-09 | 1996-01-23 | Raychem Corporation | Device or apparatus for manipulating matter |
US5496330A (en) * | 1993-02-19 | 1996-03-05 | Boston Scientific Corporation | Surgical extractor with closely angularly spaced individual filaments |
US6066149A (en) * | 1997-09-30 | 2000-05-23 | Target Therapeutics, Inc. | Mechanical clot treatment device with distal filter |
US6187025B1 (en) * | 1999-09-09 | 2001-02-13 | Noble-Met, Ltd. | Vascular filter |
Family Cites Families (509)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2943626A (en) | 1957-01-31 | 1960-07-05 | Dormia Enrico | Instruments for the extraction of foreign bodies |
US3952747A (en) | 1974-03-28 | 1976-04-27 | Kimmell Jr Garman O | Filter and filter insertion instrument |
DE2821048C2 (en) | 1978-05-13 | 1980-07-17 | Willy Ruesch Gmbh & Co Kg, 7053 Kernen | Medical instrument |
US4425908A (en) | 1981-10-22 | 1984-01-17 | Beth Israel Hospital | Blood clot filter |
US4643184A (en) | 1982-09-29 | 1987-02-17 | Mobin Uddin Kazi | Embolus trap |
US4494531A (en) | 1982-12-06 | 1985-01-22 | Cook, Incorporated | Expandable blood clot filter |
US4727873A (en) | 1984-04-17 | 1988-03-01 | Mobin Uddin Kazi | Embolus trap |
IT1176442B (en) | 1984-07-20 | 1987-08-18 | Enrico Dormia | INSTRUMENT FOR THE EXTRACTION OF FOREIGN BODIES FROM THE BODY'S PHYSIOLOGICAL CHANNELS |
FR2573646B1 (en) | 1984-11-29 | 1988-11-25 | Celsa Composants Electr Sa | PERFECTED FILTER, PARTICULARLY FOR THE RETENTION OF BLOOD CLOTS |
US4790813A (en) | 1984-12-17 | 1988-12-13 | Intravascular Surgical Instruments, Inc. | Method and apparatus for surgically removing remote deposits |
FR2580504B1 (en) | 1985-04-22 | 1987-07-10 | Pieronne Alain | FILTER FOR THE PARTIAL AND AT LEAST PROVISIONAL INTERRUPTION OF A VEIN AND CATHETER CARRYING THE FILTER |
US4706671A (en) | 1985-05-02 | 1987-11-17 | Weinrib Harry P | Catheter with coiled tip |
US4662885A (en) | 1985-09-03 | 1987-05-05 | Becton, Dickinson And Company | Percutaneously deliverable intravascular filter prosthesis |
US4650466A (en) | 1985-11-01 | 1987-03-17 | Angiobrade Partners | Angioplasty device |
US4790812A (en) | 1985-11-15 | 1988-12-13 | Hawkins Jr Irvin F | Apparatus and method for removing a target object from a body passsageway |
US4723549A (en) | 1986-09-18 | 1988-02-09 | Wholey Mark H | Method and apparatus for dilating blood vessels |
FR2606641B1 (en) | 1986-11-17 | 1991-07-12 | Promed | FILTERING DEVICE FOR BLOOD CLOTS |
US4794928A (en) | 1987-06-10 | 1989-01-03 | Kletschka Harold D | Angioplasty device and method of using the same |
US5154705A (en) * | 1987-09-30 | 1992-10-13 | Lake Region Manufacturing Co., Inc. | Hollow lumen cable apparatus |
US4921478A (en) | 1988-02-23 | 1990-05-01 | C. R. Bard, Inc. | Cerebral balloon angioplasty system |
US4832055A (en) | 1988-07-08 | 1989-05-23 | Palestrant Aubrey M | Mechanically locking blood clot filter |
US4921484A (en) | 1988-07-25 | 1990-05-01 | Cordis Corporation | Mesh balloon catheter device |
US5152777A (en) | 1989-01-25 | 1992-10-06 | Uresil Corporation | Device and method for providing protection from emboli and preventing occulsion of blood vessels |
US5749879A (en) | 1989-08-16 | 1998-05-12 | Medtronic, Inc. | Device or apparatus for manipulating matter |
US5632746A (en) | 1989-08-16 | 1997-05-27 | Medtronic, Inc. | Device or apparatus for manipulating matter |
US5509923A (en) | 1989-08-16 | 1996-04-23 | Raychem Corporation | Device for dissecting, grasping, or cutting an object |
US5904690A (en) | 1989-08-16 | 1999-05-18 | Medtronic, Inc. | Device or apparatus for manipulating matter |
DE8910603U1 (en) | 1989-09-06 | 1989-12-07 | Guenther, Rolf W., Prof. Dr. | |
US5100425A (en) | 1989-09-14 | 1992-03-31 | Medintec R&D Limited Partnership | Expandable transluminal atherectomy catheter system and method for the treatment of arterial stenoses |
US4997435A (en) | 1989-09-25 | 1991-03-05 | Methodist Hospital Of Indiana Inc. | Percutaneous catheter with encapsulating receptacle |
US5092839A (en) | 1989-09-29 | 1992-03-03 | Kipperman Robert M | Coronary thrombectomy |
AU6376190A (en) | 1989-10-25 | 1991-05-02 | C.R. Bard Inc. | Occluding catheter and methods for treating cerebral arteries |
US5421832A (en) | 1989-12-13 | 1995-06-06 | Lefebvre; Jean-Marie | Filter-catheter and method of manufacturing same |
US5071407A (en) | 1990-04-12 | 1991-12-10 | Schneider (U.S.A.) Inc. | Radially expandable fixation member |
US5221261A (en) | 1990-04-12 | 1993-06-22 | Schneider (Usa) Inc. | Radially expandable fixation member |
US5158548A (en) | 1990-04-25 | 1992-10-27 | Advanced Cardiovascular Systems, Inc. | Method and system for stent delivery |
CA2048307C (en) | 1990-08-14 | 1998-08-18 | Rolf Gunther | Method and apparatus for filtering blood in a blood vessel of a patient |
US5108419A (en) | 1990-08-16 | 1992-04-28 | Evi Corporation | Endovascular filter and method for use thereof |
US5160342A (en) | 1990-08-16 | 1992-11-03 | Evi Corp. | Endovascular filter and method for use thereof |
US5100423A (en) | 1990-08-21 | 1992-03-31 | Medical Engineering & Development Institute, Inc. | Ablation catheter |
US5064428A (en) | 1990-09-18 | 1991-11-12 | Cook Incorporated | Medical retrieval basket |
US5053008A (en) | 1990-11-21 | 1991-10-01 | Sandeep Bajaj | Intracardiac catheter |
US5695518A (en) | 1990-12-28 | 1997-12-09 | Laerum; Frode | Filtering device for preventing embolism and/or distension of blood vessel walls |
US5350398A (en) | 1991-05-13 | 1994-09-27 | Dusan Pavcnik | Self-expanding filter for percutaneous insertion |
DE9109006U1 (en) | 1991-07-22 | 1991-10-10 | Schmitz-Rode, Thomas, Dipl.-Ing. Dr.Med., 5100 Aachen, De | |
US5626605A (en) | 1991-12-30 | 1997-05-06 | Scimed Life Systems, Inc. | Thrombosis filter |
FR2689388B1 (en) | 1992-04-07 | 1999-07-16 | Celsa Lg | PERFECTIONALLY RESORBABLE BLOOD FILTER. |
US5324304A (en) | 1992-06-18 | 1994-06-28 | William Cook Europe A/S | Introduction catheter set for a collapsible self-expandable implant |
US5527338A (en) | 1992-09-02 | 1996-06-18 | Board Of Regents, The University Of Texas System | Intravascular device |
FR2696092B1 (en) | 1992-09-28 | 1994-12-30 | Lefebvre Jean Marie | Kit for medical use composed of a filter and its device for placement in the vessel. |
US5490859A (en) | 1992-11-13 | 1996-02-13 | Scimed Life Systems, Inc. | Expandable intravascular occlusion material removal devices and methods of use |
US5501694A (en) | 1992-11-13 | 1996-03-26 | Scimed Life Systems, Inc. | Expandable intravascular occlusion material removal devices and methods of use |
US5836868A (en) | 1992-11-13 | 1998-11-17 | Scimed Life Systems, Inc. | Expandable intravascular occlusion material removal devices and methods of use |
US5792157A (en) | 1992-11-13 | 1998-08-11 | Scimed Life Systems, Inc. | Expandable intravascular occlusion material removal devices and methods of use |
US5897567A (en) | 1993-04-29 | 1999-04-27 | Scimed Life Systems, Inc. | Expandable intravascular occlusion material removal devices and methods of use |
US5634942A (en) | 1994-04-21 | 1997-06-03 | B. Braun Celsa | Assembly comprising a blood filter for temporary or definitive use and a device for implanting it |
DE9409484U1 (en) | 1994-06-11 | 1994-08-04 | Naderlinger Eduard | Vena cava thrombus filter |
US6123715A (en) | 1994-07-08 | 2000-09-26 | Amplatz; Curtis | Method of forming medical devices; intravascular occlusion devices |
DE69529338T3 (en) | 1994-07-08 | 2007-05-31 | Ev3 Inc., Plymouth | Intravascular filter device |
US5601595A (en) | 1994-10-25 | 1997-02-11 | Scimed Life Systems, Inc. | Remobable thrombus filter |
US5658296A (en) | 1994-11-21 | 1997-08-19 | Boston Scientific Corporation | Method for making surgical retrieval baskets |
US6013093A (en) | 1995-11-28 | 2000-01-11 | Boston Scientific Corporation | Blood clot filtering |
US5709704A (en) * | 1994-11-30 | 1998-01-20 | Boston Scientific Corporation | Blood clot filtering |
US5690671A (en) | 1994-12-13 | 1997-11-25 | Micro Interventional Systems, Inc. | Embolic elements and methods and apparatus for their delivery |
US5549626A (en) | 1994-12-23 | 1996-08-27 | New York Society For The Ruptured And Crippled Maintaining The Hospital For Special Surgery | Vena caval filter |
WO1996023446A1 (en) | 1995-02-02 | 1996-08-08 | Boston Scientific Corporation | Surgical wire basket extractor |
US6348056B1 (en) | 1999-08-06 | 2002-02-19 | Scimed Life Systems, Inc. | Medical retrieval device with releasable retrieval basket |
ATE193834T1 (en) * | 1995-03-02 | 2000-06-15 | Schneider Europ Gmbh | METHOD FOR PRODUCING A GUIDE WIRE |
US5795322A (en) | 1995-04-10 | 1998-08-18 | Cordis Corporation | Catheter with filter and thrombus-discharge device |
US5846248A (en) * | 1995-04-13 | 1998-12-08 | Boston Scientific Corporation | Method and apparatus for severing and capturing polyps |
ES2206549T3 (en) | 1995-04-14 | 2004-05-16 | B. Braun Medical Sas | INSTRUMENTAL MEDICAL DEVICE SUCH AS SANGUINEO FILTER. |
JP3199383B2 (en) | 1995-04-14 | 2001-08-20 | シュナイダー(ユーエスエー)インク | Rolling membrane type stent supply device |
US5613981A (en) | 1995-04-21 | 1997-03-25 | Medtronic, Inc. | Bidirectional dual sinusoidal helix stent |
US5681347A (en) | 1995-05-23 | 1997-10-28 | Boston Scientific Corporation | Vena cava filter delivery system |
US5833650A (en) | 1995-06-05 | 1998-11-10 | Percusurge, Inc. | Catheter apparatus and method for treating occluded vessels |
US20020193828A1 (en) | 2001-06-14 | 2002-12-19 | Cook Incorporated | Endovascular filter |
TWI238064B (en) | 1995-06-20 | 2005-08-21 | Takeda Chemical Industries Ltd | A pharmaceutical composition for prophylaxis and treatment of diabetes |
FR2735967B1 (en) | 1995-06-27 | 1998-03-06 | Perouse Implant Lab | VASCULAR SURGERY TOOL AND ITS USE |
FR2737654B1 (en) | 1995-08-10 | 1997-11-21 | Braun Celsa Sa | FILTRATION UNIT FOR THE RETENTION OF BLOOD CLOTS |
US5779716A (en) | 1995-10-06 | 1998-07-14 | Metamorphic Surgical Devices, Inc. | Device for removing solid objects from body canals, cavities and organs |
US6264663B1 (en) | 1995-10-06 | 2001-07-24 | Metamorphic Surgical Devices, Llc | Device for removing solid objects from body canals, cavities and organs including an invertable basket |
US6168604B1 (en) | 1995-10-06 | 2001-01-02 | Metamorphic Surgical Devices, Llc | Guide wire device for removing solid objects from body canals |
US5989281A (en) | 1995-11-07 | 1999-11-23 | Embol-X, Inc. | Cannula with associated filter and methods of use during cardiac surgery |
US5769816A (en) | 1995-11-07 | 1998-06-23 | Embol-X, Inc. | Cannula with associated filter |
US5695519A (en) | 1995-11-30 | 1997-12-09 | American Biomed, Inc. | Percutaneous filter for carotid angioplasty |
WO1997027893A1 (en) | 1996-02-02 | 1997-08-07 | Transvascular, Inc. | Methods and apparatus for blocking flow through blood vessels |
US5895398A (en) | 1996-02-02 | 1999-04-20 | The Regents Of The University Of California | Method of using a clot capture coil |
NL1002423C2 (en) | 1996-02-22 | 1997-08-25 | Cordis Europ | Temporary filter catheter. |
US5846251A (en) | 1996-07-22 | 1998-12-08 | Hart; Charles C. | Access device with expandable containment member |
US6096053A (en) | 1996-05-03 | 2000-08-01 | Scimed Life Systems, Inc. | Medical retrieval basket |
US6800080B1 (en) | 1996-05-03 | 2004-10-05 | Scimed Life Systems, Inc. | Medical retrieval device |
US5935139A (en) | 1996-05-03 | 1999-08-10 | Boston Scientific Corporation | System for immobilizing or manipulating an object in a tract |
WO1997042879A1 (en) | 1996-05-14 | 1997-11-20 | Embol-X, Inc. | Aortic occluder with associated filter and methods of use during cardiac surgery |
US6652480B1 (en) | 1997-03-06 | 2003-11-25 | Medtronic Ave., Inc. | Methods for reducing distal embolization |
WO1997044085A2 (en) | 1996-05-20 | 1997-11-27 | Percusurge, Inc. | Low profile catheter valve |
US6270477B1 (en) | 1996-05-20 | 2001-08-07 | Percusurge, Inc. | Catheter for emboli containment |
US6544276B1 (en) | 1996-05-20 | 2003-04-08 | Medtronic Ave. Inc. | Exchange method for emboli containment |
US6022336A (en) | 1996-05-20 | 2000-02-08 | Percusurge, Inc. | Catheter system for emboli containment |
US20050245894A1 (en) | 1996-05-20 | 2005-11-03 | Medtronic Vascular, Inc. | Methods and apparatuses for drug delivery to an intravascular occlusion |
NL1003497C2 (en) | 1996-07-03 | 1998-01-07 | Cordis Europ | Catheter with temporary vena-cava filter. |
US5662671A (en) | 1996-07-17 | 1997-09-02 | Embol-X, Inc. | Atherectomy device having trapping and excising means for removal of plaque from the aorta and other arteries |
US5669933A (en) | 1996-07-17 | 1997-09-23 | Nitinol Medical Technologies, Inc. | Removable embolus blood clot filter |
US6066158A (en) | 1996-07-25 | 2000-05-23 | Target Therapeutics, Inc. | Mechanical clot encasing and removal wire |
US6447530B1 (en) | 1996-11-27 | 2002-09-10 | Scimed Life Systems, Inc. | Atraumatic anchoring and disengagement mechanism for permanent implant device |
US5876367A (en) | 1996-12-05 | 1999-03-02 | Embol-X, Inc. | Cerebral protection during carotid endarterectomy and downstream vascular protection during other surgeries |
FR2758078B1 (en) | 1997-01-03 | 1999-07-16 | Braun Celsa Sa | BLOOD FILTER WITH IMPROVED PERMEABILITY |
US5776162A (en) | 1997-01-03 | 1998-07-07 | Nitinol Medical Technologies, Inc. | Vessel implantable shape memory appliance with superelastic hinged joint |
DE69830340T2 (en) | 1997-02-03 | 2005-11-17 | Angioguard, Inc. | vascular filters |
US6391044B1 (en) | 1997-02-03 | 2002-05-21 | Angioguard, Inc. | Vascular filter system |
US6295989B1 (en) | 1997-02-06 | 2001-10-02 | Arteria Medical Science, Inc. | ICA angioplasty with cerebral protection |
US20020169458A1 (en) | 1997-02-06 | 2002-11-14 | Connors John J. | ICA angioplasty with cerebral protection |
EP1007139A4 (en) | 1997-02-12 | 2000-06-14 | Prolifix Medical Inc | Apparatus for removal of material from stents |
US6254633B1 (en) | 1997-02-12 | 2001-07-03 | Corvita Corporation | Delivery device for a medical device having a constricted region |
US5882329A (en) | 1997-02-12 | 1999-03-16 | Prolifix Medical, Inc. | Apparatus and method for removing stenotic material from stents |
US5800457A (en) | 1997-03-05 | 1998-09-01 | Gelbfish; Gary A. | Intravascular filter and associated methodology |
US7094249B1 (en) | 1997-03-06 | 2006-08-22 | Boston Scientific Scimed, Inc. | Distal protection device and method |
EP0934092A4 (en) | 1997-03-06 | 2008-03-26 | Boston Scient Scimed Inc | Distal protection device and method |
US5814064A (en) | 1997-03-06 | 1998-09-29 | Scimed Life Systems, Inc. | Distal protection device |
US6974469B2 (en) | 1997-03-06 | 2005-12-13 | Scimed Life Systems, Inc. | Distal protection device and method |
US6152946A (en) | 1998-03-05 | 2000-11-28 | Scimed Life Systems, Inc. | Distal protection device and method |
US5827324A (en) | 1997-03-06 | 1998-10-27 | Scimed Life Systems, Inc. | Distal protection device |
US5772674A (en) | 1997-03-31 | 1998-06-30 | Nakhjavan; Fred K. | Catheter for removal of clots in blood vessels |
WO1998047447A1 (en) | 1997-04-23 | 1998-10-29 | Dubrul William R | Bifurcated stent and distal protection system |
US5868708A (en) | 1997-05-07 | 1999-02-09 | Applied Medical Resources Corporation | Balloon catheter apparatus and method |
US6676682B1 (en) | 1997-05-08 | 2004-01-13 | Scimed Life Systems, Inc. | Percutaneous catheter and guidewire having filter and medical device deployment capabilities |
US5911734A (en) | 1997-05-08 | 1999-06-15 | Embol-X, Inc. | Percutaneous catheter and guidewire having filter and medical device deployment capabilities |
US5846260A (en) | 1997-05-08 | 1998-12-08 | Embol-X, Inc. | Cannula with a modular filter for filtering embolic material |
US6258120B1 (en) | 1997-12-23 | 2001-07-10 | Embol-X, Inc. | Implantable cerebral protection device and methods of use |
US5954745A (en) | 1997-05-16 | 1999-09-21 | Gertler; Jonathan | Catheter-filter set having a compliant seal |
US6761727B1 (en) | 1997-06-02 | 2004-07-13 | Medtronic Ave, Inc. | Filter assembly |
US6059814A (en) | 1997-06-02 | 2000-05-09 | Medtronic Ave., Inc. | Filter for filtering fluid in a bodily passageway |
US5800525A (en) | 1997-06-04 | 1998-09-01 | Vascular Science, Inc. | Blood filter |
US5848964A (en) | 1997-06-06 | 1998-12-15 | Samuels; Shaun Lawrence Wilkie | Temporary inflatable filter device and method of use |
US6245088B1 (en) | 1997-07-07 | 2001-06-12 | Samuel R. Lowery | Retrievable umbrella sieve and method of use |
US5941896A (en) | 1997-09-08 | 1999-08-24 | Montefiore Hospital And Medical Center | Filter and method for trapping emboli during endovascular procedures |
US6361545B1 (en) | 1997-09-26 | 2002-03-26 | Cardeon Corporation | Perfusion filter catheter |
US6395014B1 (en) | 1997-09-26 | 2002-05-28 | John A. Macoviak | Cerebral embolic protection assembly and associated methods |
US6183482B1 (en) | 1997-10-01 | 2001-02-06 | Scimed Life Systems, Inc. | Medical retrieval basket with legs shaped to enhance capture and reduce trauma |
US6099534A (en) | 1997-10-01 | 2000-08-08 | Scimed Life Systems, Inc. | Releasable basket |
US6174318B1 (en) | 1998-04-23 | 2001-01-16 | Scimed Life Systems, Inc. | Basket with one or more moveable legs |
US5980565A (en) | 1997-10-20 | 1999-11-09 | Iowa-India Investments Company Limited | Sandwich stent |
US6461370B1 (en) | 1998-11-03 | 2002-10-08 | C. R. Bard, Inc. | Temporary vascular filter guide wire |
US7491216B2 (en) | 1997-11-07 | 2009-02-17 | Salviac Limited | Filter element with retractable guidewire tip |
DE69838952T2 (en) | 1997-11-07 | 2009-01-02 | Salviac Ltd. | EMBOLISM PROTECTION DEVICE |
WO1999023952A1 (en) | 1997-11-12 | 1999-05-20 | William Dubrul | Biological passageway occlusion removal |
US20040260333A1 (en) | 1997-11-12 | 2004-12-23 | Dubrul William R. | Medical device and method |
US6443972B1 (en) | 1997-11-19 | 2002-09-03 | Cordis Europa N.V. | Vascular filter |
US6136015A (en) | 1998-08-25 | 2000-10-24 | Micrus Corporation | Vasoocclusive coil |
US6695864B2 (en) | 1997-12-15 | 2004-02-24 | Cardeon Corporation | Method and apparatus for cerebral embolic protection |
JP2002502626A (en) | 1998-02-10 | 2002-01-29 | アーテミス・メディカル・インコーポレイテッド | Supplementary device and method of using the same |
EP1054635B1 (en) | 1998-02-10 | 2010-01-06 | Artemis Medical, Inc. | Occlusion, anchoring, tensioning or flow direction apparatus |
US20050131453A1 (en) | 1998-03-13 | 2005-06-16 | Parodi Juan C. | Apparatus and methods for reducing embolization during treatment of carotid artery disease |
US6423032B2 (en) | 1998-03-13 | 2002-07-23 | Arteria Medical Science, Inc. | Apparatus and methods for reducing embolization during treatment of carotid artery disease |
US6206868B1 (en) | 1998-03-13 | 2001-03-27 | Arteria Medical Science, Inc. | Protective device and method against embolization during treatment of carotid artery disease |
ATE342697T1 (en) | 1998-04-02 | 2006-11-15 | Salviac Ltd | IMPLANTATION CATHETER |
IE980241A1 (en) | 1998-04-02 | 1999-10-20 | Salviac Ltd | Delivery catheter with split sheath |
US5944728A (en) | 1998-04-23 | 1999-08-31 | Boston Scientific Corporation | Surgical retrieval basket with the ability to capture and release material |
US6450989B2 (en) | 1998-04-27 | 2002-09-17 | Artemis Medical, Inc. | Dilating and support apparatus with disease inhibitors and methods for use |
US6007557A (en) | 1998-04-29 | 1999-12-28 | Embol-X, Inc. | Adjustable blood filtration system |
US6511492B1 (en) | 1998-05-01 | 2003-01-28 | Microvention, Inc. | Embolectomy catheters and methods for treating stroke and other small vessel thromboembolic disorders |
US6908474B2 (en) | 1998-05-13 | 2005-06-21 | Gore Enterprise Holdings, Inc. | Apparatus and methods for reducing embolization during treatment of carotid artery disease |
WO1999062432A1 (en) | 1998-06-04 | 1999-12-09 | New York University | Endovascular thin film devices and methods for treating and preventing stroke |
IL124958A0 (en) | 1998-06-16 | 1999-01-26 | Yodfat Ofer | Implantable blood filtering device |
US6241746B1 (en) | 1998-06-29 | 2001-06-05 | Cordis Corporation | Vascular filter convertible to a stent and method |
NL1009551C2 (en) | 1998-07-03 | 2000-01-07 | Cordis Europ | Vena cava filter with improvements for controlled ejection. |
US6306163B1 (en) | 1998-08-04 | 2001-10-23 | Advanced Cardiovascular Systems, Inc. | Assembly for collecting emboli and method of use |
US6231588B1 (en) | 1998-08-04 | 2001-05-15 | Percusurge, Inc. | Low profile catheter for angioplasty and occlusion |
US6251119B1 (en) | 1998-08-07 | 2001-06-26 | Embol-X, Inc. | Direct stick tear-away introducer and methods of use |
US6179860B1 (en) | 1998-08-19 | 2001-01-30 | Artemis Medical, Inc. | Target tissue localization device and method |
US6328755B1 (en) | 1998-09-24 | 2001-12-11 | Scimed Life Systems, Inc. | Filter delivery device |
US6051014A (en) | 1998-10-13 | 2000-04-18 | Embol-X, Inc. | Percutaneous filtration catheter for valve repair surgery and methods of use |
US7044134B2 (en) | 1999-11-08 | 2006-05-16 | Ev3 Sunnyvale, Inc | Method of implanting a device in the left atrial appendage |
US7128073B1 (en) | 1998-11-06 | 2006-10-31 | Ev3 Endovascular, Inc. | Method and device for left atrial appendage occlusion |
US6083239A (en) | 1998-11-24 | 2000-07-04 | Embol-X, Inc. | Compliant framework and methods of use |
US6102932A (en) | 1998-12-15 | 2000-08-15 | Micrus Corporation | Intravascular device push wire delivery system |
US6652554B1 (en) | 1999-01-04 | 2003-11-25 | Mark H. Wholey | Instrument for thromboembolic protection |
US6254609B1 (en) | 1999-01-11 | 2001-07-03 | Scimed Life Systems, Inc. | Self-expanding stent delivery system with two sheaths |
US6896690B1 (en) | 2000-01-27 | 2005-05-24 | Viacor, Inc. | Cardiac valve procedure methods and devices |
DE60042316D1 (en) | 1999-01-28 | 2009-07-16 | Salviac Ltd | CATHETER WITH EXPANDABLE END CUT |
US7018401B1 (en) | 1999-02-01 | 2006-03-28 | Board Of Regents, The University Of Texas System | Woven intravascular devices and methods for making the same and apparatus for delivery of the same |
US20020138094A1 (en) | 1999-02-12 | 2002-09-26 | Thomas Borillo | Vascular filter system |
US6991641B2 (en) | 1999-02-12 | 2006-01-31 | Cordis Corporation | Low profile vascular filter system |
US6171327B1 (en) | 1999-02-24 | 2001-01-09 | Scimed Life Systems, Inc. | Intravascular filter and method |
US6355051B1 (en) | 1999-03-04 | 2002-03-12 | Bioguide Consulting, Inc. | Guidewire filter device |
US20020169474A1 (en) | 1999-03-08 | 2002-11-14 | Microvena Corporation | Minimally invasive medical device deployment and retrieval system |
US6632236B2 (en) | 1999-03-12 | 2003-10-14 | Arteria Medical Science, Inc. | Catheter having radially expandable main body |
US6245012B1 (en) | 1999-03-19 | 2001-06-12 | Nmt Medical, Inc. | Free standing filter |
US6893450B2 (en) | 1999-03-26 | 2005-05-17 | Cook Urological Incorporated | Minimally-invasive medical retrieval device |
US7150756B2 (en) | 1999-04-01 | 2006-12-19 | Scion Cardio-Vascular, Inc | Radiopaque locking frame, filter and flexible end |
US6277139B1 (en) | 1999-04-01 | 2001-08-21 | Scion Cardio-Vascular, Inc. | Vascular protection and embolic material retriever |
US6743247B1 (en) | 1999-04-01 | 2004-06-01 | Scion Cardio-Vascular, Inc. | Locking frame, filter and deployment system |
US6277138B1 (en) | 1999-08-17 | 2001-08-21 | Scion Cardio-Vascular, Inc. | Filter for embolic material mounted on expandable frame |
US6537296B2 (en) | 1999-04-01 | 2003-03-25 | Scion Cardio-Vascular, Inc. | Locking frame, filter and deployment system |
US6340465B1 (en) | 1999-04-12 | 2002-01-22 | Edwards Lifesciences Corp. | Lubricious coatings for medical devices |
US6267776B1 (en) | 1999-05-03 | 2001-07-31 | O'connell Paul T. | Vena cava filter and method for treating pulmonary embolism |
US20020058911A1 (en) | 1999-05-07 | 2002-05-16 | Paul Gilson | Support frame for an embolic protection device |
US6918921B2 (en) | 1999-05-07 | 2005-07-19 | Salviac Limited | Support frame for an embolic protection device |
US6964672B2 (en) | 1999-05-07 | 2005-11-15 | Salviac Limited | Support frame for an embolic protection device |
WO2000067665A1 (en) | 1999-05-07 | 2000-11-16 | Salviac Limited | Support frame for embolic protection device |
US7014647B2 (en) | 1999-05-07 | 2006-03-21 | Salviac Limited | Support frame for an embolic protection device |
WO2000067666A1 (en) | 1999-05-07 | 2000-11-16 | Salviac Limited | Improved filter element for embolic protection device |
WO2000067670A1 (en) | 1999-05-07 | 2000-11-16 | Salviac Limited | An embolic protection device |
US6585756B1 (en) | 1999-05-14 | 2003-07-01 | Ernst P. Strecker | Implantable lumen prosthesis |
US6176849B1 (en) | 1999-05-21 | 2001-01-23 | Scimed Life Systems, Inc. | Hydrophilic lubricity coating for medical devices comprising a hydrophobic top coat |
FR2794653B1 (en) | 1999-06-14 | 2001-12-21 | Sarl Aln | KIT FOR THE REMOVAL OF A BLADDER VESSEL FILTER OF THE UMBRELLA TYPE |
US6458139B1 (en) * | 1999-06-21 | 2002-10-01 | Endovascular Technologies, Inc. | Filter/emboli extractor for use in variable sized blood vessels |
US6364900B1 (en) | 1999-07-14 | 2002-04-02 | Richard R. Heuser | Embolism prevention device |
US20030150821A1 (en) | 1999-07-16 | 2003-08-14 | Bates Mark C. | Emboli filtration system and methods of use |
US6179859B1 (en) | 1999-07-16 | 2001-01-30 | Baff Llc | Emboli filtration system and methods of use |
US6468291B2 (en) | 1999-07-16 | 2002-10-22 | Baff Llc | Emboli filtration system having integral strut arrangement and methods of use |
US6485507B1 (en) | 1999-07-28 | 2002-11-26 | Scimed Life Systems | Multi-property nitinol by heat treatment |
US6179861B1 (en) | 1999-07-30 | 2001-01-30 | Incept Llc | Vascular device having one or more articulation regions and methods of use |
US6203561B1 (en) | 1999-07-30 | 2001-03-20 | Incept Llc | Integrated vascular device having thrombectomy element and vascular filter and methods of use |
US6371970B1 (en) | 1999-07-30 | 2002-04-16 | Incept Llc | Vascular filter having articulation region and methods of use in the ascending aorta |
US6620182B1 (en) | 1999-07-30 | 2003-09-16 | Incept Llc | Vascular filter having articulation region and methods of use in the ascending aorta |
US6214026B1 (en) | 1999-07-30 | 2001-04-10 | Incept Llc | Delivery system for a vascular device with articulation region |
US7229463B2 (en) | 1999-07-30 | 2007-06-12 | Angioguard, Inc. | Vascular filter system for cardiopulmonary bypass |
US7229462B2 (en) | 1999-07-30 | 2007-06-12 | Angioguard, Inc. | Vascular filter system for carotid endarterectomy |
US6589263B1 (en) | 1999-07-30 | 2003-07-08 | Incept Llc | Vascular device having one or more articulation regions and methods of use |
US6544279B1 (en) | 2000-08-09 | 2003-04-08 | Incept, Llc | Vascular device for emboli, thrombus and foreign body removal and methods of use |
EP1207933B1 (en) | 1999-07-30 | 2011-05-11 | Incept Llc | Vascular filter having articulation region |
US7306618B2 (en) | 1999-07-30 | 2007-12-11 | Incept Llc | Vascular device for emboli and thrombi removal and methods of use |
US6530939B1 (en) | 1999-07-30 | 2003-03-11 | Incept, Llc | Vascular device having articulation region and methods of use |
US7320697B2 (en) | 1999-07-30 | 2008-01-22 | Boston Scientific Scimed, Inc. | One piece loop and coil |
US6616679B1 (en) | 1999-07-30 | 2003-09-09 | Incept, Llc | Rapid exchange vascular device for emboli and thrombus removal and methods of use |
US6245087B1 (en) | 1999-08-03 | 2001-06-12 | Embol-X, Inc. | Variable expansion frame system for deploying medical devices and methods of use |
US6142987A (en) | 1999-08-03 | 2000-11-07 | Scimed Life Systems, Inc. | Guided filter with support wire and methods of use |
US6346116B1 (en) | 1999-08-03 | 2002-02-12 | Medtronic Ave, Inc. | Distal protection device |
US6168579B1 (en) | 1999-08-04 | 2001-01-02 | Scimed Life Systems, Inc. | Filter flush system and methods of use |
US6235044B1 (en) | 1999-08-04 | 2001-05-22 | Scimed Life Systems, Inc. | Percutaneous catheter and guidewire for filtering during ablation of mycardial or vascular tissue |
US6273901B1 (en) | 1999-08-10 | 2001-08-14 | Scimed Life Systems, Inc. | Thrombosis filter having a surface treatment |
DE69939753D1 (en) | 1999-08-27 | 2008-11-27 | Ev3 Inc | Movable vascular filter |
US6251122B1 (en) | 1999-09-02 | 2001-06-26 | Scimed Life Systems, Inc. | Intravascular filter retrieval device and method |
DE29916162U1 (en) | 1999-09-14 | 2000-01-13 | Cormedics Gmbh | Vascular filter system |
US6325815B1 (en) | 1999-09-21 | 2001-12-04 | Microvena Corporation | Temporary vascular filter |
US6939361B1 (en) | 1999-09-22 | 2005-09-06 | Nmt Medical, Inc. | Guidewire for a free standing intervascular device having an integral stop mechanism |
US6364895B1 (en) | 1999-10-07 | 2002-04-02 | Prodesco, Inc. | Intraluminal filter |
US6375670B1 (en) | 1999-10-07 | 2002-04-23 | Prodesco, Inc. | Intraluminal filter |
US6340364B2 (en) | 1999-10-22 | 2002-01-22 | Nozomu Kanesaka | Vascular filtering device |
US6264672B1 (en) | 1999-10-25 | 2001-07-24 | Biopsy Sciences, Llc | Emboli capturing device |
US6425909B1 (en) | 1999-11-04 | 2002-07-30 | Concentric Medical, Inc. | Methods and devices for filtering fluid flow through a body structure |
US6171328B1 (en) | 1999-11-09 | 2001-01-09 | Embol-X, Inc. | Intravascular catheter filter with interlocking petal design and methods of use |
US6371971B1 (en) | 1999-11-15 | 2002-04-16 | Scimed Life Systems, Inc. | Guidewire filter and methods of use |
WO2001035858A1 (en) | 1999-11-18 | 2001-05-25 | Advanced Cardiovascular Systems, Inc. | Embolic protection system and method including an emboli-capturing catheter |
US6331184B1 (en) | 1999-12-10 | 2001-12-18 | Scimed Life Systems, Inc. | Detachable covering for an implantable medical device |
US6623450B1 (en) | 1999-12-17 | 2003-09-23 | Advanced Cardiovascular Systems, Inc. | System for blocking the passage of emboli through a body vessel |
US6443979B1 (en) | 1999-12-20 | 2002-09-03 | Advanced Cardiovascular Systems, Inc. | Expandable stent delivery sheath and method of use |
US6443971B1 (en) | 1999-12-21 | 2002-09-03 | Advanced Cardiovascular Systems, Inc. | System for, and method of, blocking the passage of emboli through a vessel |
US6402771B1 (en) | 1999-12-23 | 2002-06-11 | Guidant Endovascular Solutions | Snare |
US6575997B1 (en) | 1999-12-23 | 2003-06-10 | Endovascular Technologies, Inc. | Embolic basket |
US6660021B1 (en) | 1999-12-23 | 2003-12-09 | Advanced Cardiovascular Systems, Inc. | Intravascular device and system |
US6406471B1 (en) | 1999-12-28 | 2002-06-18 | Embol-X, Inc. | Arterial filter with aspiration and methods of use |
US6290710B1 (en) | 1999-12-29 | 2001-09-18 | Advanced Cardiovascular Systems, Inc. | Embolic protection device |
US6695813B1 (en) | 1999-12-30 | 2004-02-24 | Advanced Cardiovascular Systems, Inc. | Embolic protection devices |
US6540722B1 (en) | 1999-12-30 | 2003-04-01 | Advanced Cardiovascular Systems, Inc. | Embolic protection devices |
US6645220B1 (en) | 1999-12-30 | 2003-11-11 | Advanced Cardiovascular Systems, Inc. | Embolic protection system and method including and embolic-capturing filter |
US6702834B1 (en) | 1999-12-30 | 2004-03-09 | Advanced Cardiovascular Systems, Inc. | Embolic protection devices |
US6290656B1 (en) | 1999-12-30 | 2001-09-18 | Advanced Cardiovascular Systems, Inc. | Guide wire with damped force vibration mechanism |
US6511503B1 (en) | 1999-12-30 | 2003-01-28 | Advanced Cardiovascular Systems, Inc. | Catheter apparatus for treating occluded vessels and filtering embolic debris and method of use |
US6383206B1 (en) | 1999-12-30 | 2002-05-07 | Advanced Cardiovascular Systems, Inc. | Embolic protection system and method including filtering elements |
US6361546B1 (en) | 2000-01-13 | 2002-03-26 | Endotex Interventional Systems, Inc. | Deployable recoverable vascular filter and methods for use |
DE60128207T2 (en) | 2000-02-01 | 2008-01-10 | Harold D. Minneapolis Kletschka | ANGIOPLASTIEVORRICHTUNNG |
US6443926B1 (en) | 2000-02-01 | 2002-09-03 | Harold D. Kletschka | Embolic protection device having expandable trap |
US6517550B1 (en) | 2000-02-02 | 2003-02-11 | Board Of Regents, The University Of Texas System | Foreign body retrieval device |
US6540767B1 (en) | 2000-02-08 | 2003-04-01 | Scimed Life Systems, Inc. | Recoilable thrombosis filtering device and method |
US6540768B1 (en) | 2000-02-09 | 2003-04-01 | Cordis Corporation | Vascular filter system |
US6863696B2 (en) | 2000-02-16 | 2005-03-08 | Viktoria Kantsevitcha | Vascular prosthesis |
US6629953B1 (en) | 2000-02-18 | 2003-10-07 | Fox Hollow Technologies, Inc. | Methods and devices for removing material from a vascular site |
WO2001062184A2 (en) | 2000-02-23 | 2001-08-30 | Boston Scientific Limited | Intravascular filtering devices and methods |
DE60126585T2 (en) | 2000-03-10 | 2007-12-06 | Anthony T. Bakersfield Don Michael | Device for the prevention of vascular embolism |
US6695865B2 (en) | 2000-03-20 | 2004-02-24 | Advanced Bio Prosthetic Surfaces, Ltd. | Embolic protection device |
US6485500B1 (en) | 2000-03-21 | 2002-11-26 | Advanced Cardiovascular Systems, Inc. | Emboli protection system |
US6632241B1 (en) | 2000-03-22 | 2003-10-14 | Endovascular Technologies, Inc. | Self-expanding, pseudo-braided intravascular device |
US6514273B1 (en) | 2000-03-22 | 2003-02-04 | Endovascular Technologies, Inc. | Device for removal of thrombus through physiological adhesion |
US20040167567A1 (en) | 2001-03-23 | 2004-08-26 | Cano Gerald G. | Method and apparatus for capturing objects beyond an operative site in medical procedures |
GB2369575A (en) | 2000-04-20 | 2002-06-05 | Salviac Ltd | An embolic protection system |
US6592616B1 (en) | 2000-04-28 | 2003-07-15 | Advanced Cardiovascular Systems, Inc. | System and device for minimizing embolic risk during an interventional procedure |
US6706053B1 (en) | 2000-04-28 | 2004-03-16 | Advanced Cardiovascular Systems, Inc. | Nitinol alloy design for sheath deployable and re-sheathable vascular devices |
US6520978B1 (en) | 2000-05-15 | 2003-02-18 | Intratherapeutics, Inc. | Emboli filter |
US6602271B2 (en) | 2000-05-24 | 2003-08-05 | Medtronic Ave, Inc. | Collapsible blood filter with optimal braid geometry |
US6645221B1 (en) | 2000-05-30 | 2003-11-11 | Zuli, Holdings Ltd. | Active arterial embolization filter |
US6939362B2 (en) | 2001-11-27 | 2005-09-06 | Advanced Cardiovascular Systems, Inc. | Offset proximal cage for embolic filtering devices |
US6565591B2 (en) | 2000-06-23 | 2003-05-20 | Salviac Limited | Medical device |
US8298257B2 (en) | 2000-06-29 | 2012-10-30 | Concentric Medical, Inc. | Systems, methods and devices for removing obstructions from a blood vessel |
US6663650B2 (en) | 2000-06-29 | 2003-12-16 | Concentric Medical, Inc. | Systems, methods and devices for removing obstructions from a blood vessel |
WO2002005888A1 (en) | 2000-06-30 | 2002-01-24 | Viacor Incorporated | Intravascular filter with debris entrapment mechanism |
US6482222B1 (en) | 2000-07-11 | 2002-11-19 | Rafael Medical Technologies Inc. | Intravascular filter |
US6964670B1 (en) | 2000-07-13 | 2005-11-15 | Advanced Cardiovascular Systems, Inc. | Embolic protection guide wire |
US6575995B1 (en) | 2000-07-14 | 2003-06-10 | Advanced Cardiovascular Systems, Inc. | Expandable cage embolic material filter system and method |
US6656202B2 (en) | 2000-07-14 | 2003-12-02 | Advanced Cardiovascular Systems, Inc. | Embolic protection systems |
US6679902B1 (en) | 2000-07-19 | 2004-01-20 | Advanced Cardiovascular Systems, Inc. | Reduced profile delivery sheath for use in interventional procedures |
US6740061B1 (en) | 2000-07-28 | 2004-05-25 | Ev3 Inc. | Distal protection device |
US6527746B1 (en) | 2000-08-03 | 2003-03-04 | Ev3, Inc. | Back-loading catheter |
US7147649B2 (en) | 2000-08-04 | 2006-12-12 | Duke University | Temporary vascular filters |
US6394978B1 (en) | 2000-08-09 | 2002-05-28 | Advanced Cardiovascular Systems, Inc. | Interventional procedure expandable balloon expansion enabling system and method |
US6485501B1 (en) | 2000-08-11 | 2002-11-26 | Cordis Corporation | Vascular filter system with guidewire and capture mechanism |
AU2001285078A1 (en) | 2000-08-18 | 2002-03-04 | Atritech, Inc. | Expandable implant devices for filtering blood flow from atrial appendages |
US6558405B1 (en) | 2000-08-29 | 2003-05-06 | Advanced Cardiovascular Systems, Inc. | Embolic filter |
FR2813518B1 (en) | 2000-09-04 | 2002-10-31 | Claude Mialhe | VASCULAR OCCLUSION DEVICE, APPARATUS AND METHOD OF USE |
US6511496B1 (en) | 2000-09-12 | 2003-01-28 | Advanced Cardiovascular Systems, Inc. | Embolic protection device for use in interventional procedures |
US6723108B1 (en) | 2000-09-18 | 2004-04-20 | Cordis Neurovascular, Inc | Foam matrix embolization device |
US6616681B2 (en) | 2000-10-05 | 2003-09-09 | Scimed Life Systems, Inc. | Filter delivery and retrieval device |
US6537294B1 (en) | 2000-10-17 | 2003-03-25 | Advanced Cardiovascular Systems, Inc. | Delivery systems for embolic filter devices |
EP1326672A4 (en) | 2000-10-18 | 2007-03-07 | Nmt Medical Inc | Over-the-wire interlock attachment/detachment mechanism |
US6582447B1 (en) | 2000-10-20 | 2003-06-24 | Angiodynamics, Inc. | Convertible blood clot filter |
US6589265B1 (en) | 2000-10-31 | 2003-07-08 | Endovascular Technologies, Inc. | Intrasaccular embolic device |
US6616680B1 (en) | 2000-11-01 | 2003-09-09 | Joseph M. Thielen | Distal protection and delivery system and method |
US6602272B2 (en) | 2000-11-02 | 2003-08-05 | Advanced Cardiovascular Systems, Inc. | Devices configured from heat shaped, strain hardened nickel-titanium |
US6893451B2 (en) | 2000-11-09 | 2005-05-17 | Advanced Cardiovascular Systems, Inc. | Apparatus for capturing objects beyond an operative site utilizing a capture device delivered on a medical guide wire |
US6726703B2 (en) | 2000-11-27 | 2004-04-27 | Scimed Life Systems, Inc. | Distal protection device and method |
US6506203B1 (en) | 2000-12-19 | 2003-01-14 | Advanced Cardiovascular Systems, Inc. | Low profile sheathless embolic protection system |
US6582448B1 (en) | 2000-12-21 | 2003-06-24 | Advanced Cardiovascular Systems, Inc. | Vessel occlusion device for embolic protection system |
US6663651B2 (en) | 2001-01-16 | 2003-12-16 | Incept Llc | Systems and methods for vascular filter retrieval |
US7169165B2 (en) | 2001-01-16 | 2007-01-30 | Boston Scientific Scimed, Inc. | Rapid exchange sheath for deployment of medical devices and methods of use |
US6936059B2 (en) | 2001-01-16 | 2005-08-30 | Scimed Life Systems, Inc. | Endovascular guidewire filter and methods of use |
US6610077B1 (en) | 2001-01-23 | 2003-08-26 | Endovascular Technologies, Inc. | Expandable emboli filter and thrombectomy device |
US20020128680A1 (en) | 2001-01-25 | 2002-09-12 | Pavlovic Jennifer L. | Distal protection device with electrospun polymer fiber matrix |
US6689151B2 (en) | 2001-01-25 | 2004-02-10 | Scimed Life Systems, Inc. | Variable wall thickness for delivery sheath housing |
US6979343B2 (en) | 2001-02-14 | 2005-12-27 | Ev3 Inc. | Rolled tip recovery catheter |
US6840950B2 (en) | 2001-02-20 | 2005-01-11 | Scimed Life Systems, Inc. | Low profile emboli capture device |
US6506205B2 (en) | 2001-02-20 | 2003-01-14 | Mark Goldberg | Blood clot filtering system |
US6569184B2 (en) | 2001-02-27 | 2003-05-27 | Advanced Cardiovascular Systems, Inc. | Recovery system for retrieving an embolic protection device |
US6974468B2 (en) | 2001-02-28 | 2005-12-13 | Scimed Life Systems, Inc. | Filter retrieval catheter |
US7226464B2 (en) | 2001-03-01 | 2007-06-05 | Scimed Life Systems, Inc. | Intravascular filter retrieval device having an actuatable dilator tip |
US20020123755A1 (en) | 2001-03-01 | 2002-09-05 | Scimed Life Systems, Inc. | Embolic protection filter delivery sheath |
US6562058B2 (en) | 2001-03-02 | 2003-05-13 | Jacques Seguin | Intravascular filter system |
US6537295B2 (en) | 2001-03-06 | 2003-03-25 | Scimed Life Systems, Inc. | Wire and lock mechanism |
WO2002071977A2 (en) | 2001-03-08 | 2002-09-19 | Atritech, Inc. | Atrial filter implants |
US20020128679A1 (en) | 2001-03-08 | 2002-09-12 | Embol-X, Inc. | Cerebral protection during carotid endarterectomy and methods of use |
US7214237B2 (en) | 2001-03-12 | 2007-05-08 | Don Michael T Anthony | Vascular filter with improved strength and flexibility |
US8298160B2 (en) | 2001-03-16 | 2012-10-30 | Ev3 Inc. | Wire convertible from over-the-wire length to rapid exchange length |
US6602269B2 (en) | 2001-03-30 | 2003-08-05 | Scimed Life Systems | Embolic devices capable of in-situ reinforcement |
US7044958B2 (en) | 2001-04-03 | 2006-05-16 | Medtronic Vascular, Inc. | Temporary device for capturing embolic material |
US6911036B2 (en) | 2001-04-03 | 2005-06-28 | Medtronic Vascular, Inc. | Guidewire apparatus for temporary distal embolic protection |
US6818006B2 (en) | 2001-04-03 | 2004-11-16 | Medtronic Vascular, Inc. | Temporary intraluminal filter guidewire |
US6428559B1 (en) | 2001-04-03 | 2002-08-06 | Cordis Corporation | Removable, variable-diameter vascular filter system |
US6706055B2 (en) | 2001-04-03 | 2004-03-16 | Medtronic Ave Inc. | Guidewire apparatus for temporary distal embolic protection |
US20020161395A1 (en) | 2001-04-03 | 2002-10-31 | Nareak Douk | Guide wire apparatus for prevention of distal atheroembolization |
US6866677B2 (en) | 2001-04-03 | 2005-03-15 | Medtronic Ave, Inc. | Temporary intraluminal filter guidewire and methods of use |
US7018372B2 (en) | 2001-04-17 | 2006-03-28 | Salviac Limited | Catheter |
US6645223B2 (en) | 2001-04-30 | 2003-11-11 | Advanced Cardiovascular Systems, Inc. | Deployment and recovery control systems for embolic protection devices |
US6436121B1 (en) | 2001-04-30 | 2002-08-20 | Paul H. Blom | Removable blood filter |
US6746469B2 (en) | 2001-04-30 | 2004-06-08 | Advanced Cardiovascular Systems, Inc. | Balloon actuated apparatus having multiple embolic filters, and method of use |
US6814739B2 (en) | 2001-05-18 | 2004-11-09 | U.S. Endoscopy Group, Inc. | Retrieval device |
US6635070B2 (en) | 2001-05-21 | 2003-10-21 | Bacchus Vascular, Inc. | Apparatus and methods for capturing particulate material within blood vessels |
US6929652B1 (en) | 2001-06-01 | 2005-08-16 | Advanced Cardiovascular Systems, Inc. | Delivery and recovery systems having steerability and rapid exchange operating modes for embolic protection systems |
US20020188314A1 (en) | 2001-06-07 | 2002-12-12 | Microvena Corporation | Radiopaque distal embolic protection device |
US6596011B2 (en) | 2001-06-12 | 2003-07-22 | Cordis Corporation | Emboli extraction catheter and vascular filter system |
US6551341B2 (en) | 2001-06-14 | 2003-04-22 | Advanced Cardiovascular Systems, Inc. | Devices configured from strain hardened Ni Ti tubing |
US6783538B2 (en) | 2001-06-18 | 2004-08-31 | Rex Medical, L.P | Removable vein filter |
US6623506B2 (en) | 2001-06-18 | 2003-09-23 | Rex Medical, L.P | Vein filter |
US6793665B2 (en) | 2001-06-18 | 2004-09-21 | Rex Medical, L.P. | Multiple access vein filter |
US7789860B2 (en) | 2001-06-27 | 2010-09-07 | Salviac Limited | Catheter for delivery and/or retrieval of a medical device |
US20030125764A1 (en) | 2001-06-27 | 2003-07-03 | Eamon Brady | Catheter |
EP1404237B1 (en) | 2001-06-28 | 2007-09-12 | Lithotech Medical Ltd | Foreign body retrieval device |
US6575996B1 (en) | 2001-06-29 | 2003-06-10 | Advanced Cardiovascular Systems, Inc. | Filter device for embolic protection system |
US7678128B2 (en) | 2001-06-29 | 2010-03-16 | Advanced Cardiovascular Systems, Inc. | Delivery and recovery sheaths for medical devices |
US6599307B1 (en) | 2001-06-29 | 2003-07-29 | Advanced Cardiovascular Systems, Inc. | Filter device for embolic protection systems |
US7338510B2 (en) | 2001-06-29 | 2008-03-04 | Advanced Cardiovascular Systems, Inc. | Variable thickness embolic filtering devices and method of manufacturing the same |
JP4567918B2 (en) | 2001-07-02 | 2010-10-27 | テルモ株式会社 | Intravascular foreign matter removal wire and medical device |
US6962598B2 (en) | 2001-07-02 | 2005-11-08 | Rubicon Medical, Inc. | Methods, systems, and devices for providing embolic protection |
US6878153B2 (en) | 2001-07-02 | 2005-04-12 | Rubicon Medical, Inc. | Methods, systems, and devices for providing embolic protection and removing embolic material |
US6997939B2 (en) | 2001-07-02 | 2006-02-14 | Rubicon Medical, Inc. | Methods, systems, and devices for deploying an embolic protection filter |
US6951570B2 (en) | 2001-07-02 | 2005-10-04 | Rubicon Medical, Inc. | Methods, systems, and devices for deploying a filter from a filter device |
DE60212006T2 (en) | 2001-07-13 | 2007-04-19 | B. Braun Medical Sas | Vascular protection system and angioplasty device |
US7011671B2 (en) | 2001-07-18 | 2006-03-14 | Atritech, Inc. | Cardiac implant device tether system and method |
US6656203B2 (en) | 2001-07-18 | 2003-12-02 | Cordis Corporation | Integral vascular filter system |
US6533800B1 (en) | 2001-07-25 | 2003-03-18 | Coaxia, Inc. | Devices and methods for preventing distal embolization using flow reversal in arteries having collateral blood flow |
US20030032941A1 (en) | 2001-08-13 | 2003-02-13 | Boyle William J. | Convertible delivery systems for medical devices |
US6902540B2 (en) | 2001-08-22 | 2005-06-07 | Gerald Dorros | Apparatus and methods for treating stroke and controlling cerebral flow characteristics |
US6551342B1 (en) | 2001-08-24 | 2003-04-22 | Endovascular Technologies, Inc. | Embolic filter |
US6652557B1 (en) | 2001-08-29 | 2003-11-25 | Macdonald Kenneth A. | Mechanism for capturing debris generated during vascular procedures |
US6638294B1 (en) | 2001-08-30 | 2003-10-28 | Advanced Cardiovascular Systems, Inc. | Self furling umbrella frame for carotid filter |
US6656351B2 (en) | 2001-08-31 | 2003-12-02 | Advanced Cardiovascular Systems, Inc. | Embolic protection devices one way porous membrane |
US6592606B2 (en) | 2001-08-31 | 2003-07-15 | Advanced Cardiovascular Systems, Inc. | Hinged short cage for an embolic protection device |
US7097651B2 (en) | 2001-09-06 | 2006-08-29 | Advanced Cardiovascular Systems, Inc. | Embolic protection basket |
US6616682B2 (en) | 2001-09-19 | 2003-09-09 | Jomed Gmbh | Methods and apparatus for distal protection during a medical procedure |
US6878151B2 (en) | 2001-09-27 | 2005-04-12 | Scimed Life Systems, Inc. | Medical retrieval device |
US20030060843A1 (en) | 2001-09-27 | 2003-03-27 | Don Boucher | Vascular filter system with encapsulated filter |
US8262689B2 (en) | 2001-09-28 | 2012-09-11 | Advanced Cardiovascular Systems, Inc. | Embolic filtering devices |
US6755847B2 (en) | 2001-10-05 | 2004-06-29 | Scimed Life Systems, Inc. | Emboli capturing device and method of manufacture therefor |
US20030069597A1 (en) | 2001-10-10 | 2003-04-10 | Scimed Life Systems, Inc. | Loading tool |
US20030078614A1 (en) | 2001-10-18 | 2003-04-24 | Amr Salahieh | Vascular embolic filter devices and methods of use therefor |
US6887257B2 (en) | 2001-10-19 | 2005-05-03 | Incept Llc | Vascular embolic filter exchange devices and methods of use thereof |
US20030083692A1 (en) | 2001-10-29 | 2003-05-01 | Scimed Life Systems, Inc. | Distal protection device and method of use thereof |
US20050021075A1 (en) | 2002-12-30 | 2005-01-27 | Bonnette Michael J. | Guidewire having deployable sheathless protective filter |
US6790219B1 (en) | 2001-11-06 | 2004-09-14 | Edwards Lifesciences Corporation | Filter with integrated obturator tip and methods of use |
US20030109824A1 (en) | 2001-11-07 | 2003-06-12 | Microvena Corporation | Distal protection device with local drug delivery to maintain patency |
US6890340B2 (en) | 2001-11-29 | 2005-05-10 | Medtronic Vascular, Inc. | Apparatus for temporary intraluminal protection |
US6837898B2 (en) | 2001-11-30 | 2005-01-04 | Advanced Cardiovascular Systems, Inc. | Intraluminal delivery system for an attachable treatment device |
ES2399091T3 (en) | 2001-12-05 | 2013-03-25 | Keystone Heart Ltd. | Endovascular device for entrapment of particulate matter and method of use |
US7153320B2 (en) | 2001-12-13 | 2006-12-26 | Scimed Life Systems, Inc. | Hydraulic controlled retractable tip filter retrieval catheter |
US6748255B2 (en) | 2001-12-14 | 2004-06-08 | Biosense Webster, Inc. | Basket catheter with multiple location sensors |
US6741878B2 (en) | 2001-12-14 | 2004-05-25 | Biosense Webster, Inc. | Basket catheter with improved expansion mechanism |
US6793666B2 (en) | 2001-12-18 | 2004-09-21 | Scimed Life Systems, Inc. | Distal protection mechanically attached filter cartridge |
US7241304B2 (en) | 2001-12-21 | 2007-07-10 | Advanced Cardiovascular Systems, Inc. | Flexible and conformable embolic filtering devices |
WO2003055412A2 (en) | 2001-12-21 | 2003-07-10 | Salviac Limited | A support frame for an embolic protection device |
US6958074B2 (en) | 2002-01-07 | 2005-10-25 | Cordis Corporation | Releasable and retrievable vascular filter system |
US8647359B2 (en) | 2002-01-10 | 2014-02-11 | Boston Scientific Scimed, Inc. | Distal protection filter |
US6932830B2 (en) | 2002-01-10 | 2005-08-23 | Scimed Life Systems, Inc. | Disc shaped filter |
US20030135162A1 (en) | 2002-01-17 | 2003-07-17 | Scimed Life Systems, Inc. | Delivery and retrieval manifold for a distal protection filter |
JP4328209B2 (en) | 2002-01-25 | 2009-09-09 | アトリテック, インコーポレイテッド | Atrial appendage blood filtration system |
US20030144686A1 (en) | 2002-01-30 | 2003-07-31 | Embol-X, Inc. | Distal filtration devices and methods of use during aortic procedures |
US7344549B2 (en) | 2002-01-31 | 2008-03-18 | Advanced Cardiovascular Systems, Inc. | Expandable cages for embolic filtering devices |
US6953471B1 (en) | 2002-02-07 | 2005-10-11 | Edwards Lifesciences Corporation | Cannula with flexible remote cable filter deployment |
US6997938B2 (en) | 2002-02-12 | 2006-02-14 | Scimed Life Systems, Inc. | Embolic protection device |
US20030158574A1 (en) | 2002-02-15 | 2003-08-21 | Esch Brady D. | Flow-through aortic flow divider for cerebral and coronary embolic protection |
US7004964B2 (en) | 2002-02-22 | 2006-02-28 | Scimed Life Systems, Inc. | Apparatus and method for deployment of an endoluminal device |
US7118539B2 (en) | 2002-02-26 | 2006-10-10 | Scimed Life Systems, Inc. | Articulating guide wire for embolic protection and methods of use |
ATE369088T1 (en) | 2002-03-05 | 2007-08-15 | Salviac Ltd | SYSTEM FOR PROTECTION AGAINST EMBOLIA |
US7192434B2 (en) | 2002-03-08 | 2007-03-20 | Ev3 Inc. | Vascular protection devices and methods of use |
US6773448B2 (en) | 2002-03-08 | 2004-08-10 | Ev3 Inc. | Distal protection devices having controllable wire motion |
US20030176884A1 (en) | 2002-03-12 | 2003-09-18 | Marwane Berrada | Everted filter device |
US20030176886A1 (en) | 2002-03-12 | 2003-09-18 | Wholey Mark H. | Vascular catheter with expanded distal tip for receiving a thromboembolic protection device and method of use |
US7029440B2 (en) | 2002-03-13 | 2006-04-18 | Scimed Life Systems, Inc. | Distal protection filter and method of manufacture |
US20030187495A1 (en) | 2002-04-01 | 2003-10-02 | Cully Edward H. | Endoluminal devices, embolic filters, methods of manufacture and use |
US20030191493A1 (en) | 2002-04-05 | 2003-10-09 | Epstein Gordon H. | Device for clot retrieval and distal protection |
US20030199819A1 (en) | 2002-04-17 | 2003-10-23 | Beck Robert C. | Filter wire system |
US20030204168A1 (en) | 2002-04-30 | 2003-10-30 | Gjalt Bosma | Coated vascular devices |
US8070769B2 (en) | 2002-05-06 | 2011-12-06 | Boston Scientific Scimed, Inc. | Inverted embolic protection filter |
US7060082B2 (en) | 2002-05-06 | 2006-06-13 | Scimed Life Systems, Inc. | Perfusion guidewire in combination with a distal filter |
AU2003241118A1 (en) | 2002-05-10 | 2003-11-11 | Salviac Limited | An embolic protection system |
US20040006365A1 (en) | 2002-05-13 | 2004-01-08 | Salviac Limited | Embolic protection system |
US7585309B2 (en) | 2002-05-16 | 2009-09-08 | Boston Scientific Scimed, Inc. | Aortic filter |
US7001406B2 (en) | 2002-05-23 | 2006-02-21 | Scimed Life Systems Inc. | Cartridge embolic protection filter and methods of use |
US7959584B2 (en) | 2002-05-29 | 2011-06-14 | Boston Scientific Scimed, Inc. | Dedicated distal protection guidewires |
US7326224B2 (en) | 2002-06-11 | 2008-02-05 | Boston Scientific Scimed, Inc. | Shaft and wire lock |
US7717934B2 (en) | 2002-06-14 | 2010-05-18 | Ev3 Inc. | Rapid exchange catheters usable with embolic protection devices |
US6887258B2 (en) | 2002-06-26 | 2005-05-03 | Advanced Cardiovascular Systems, Inc. | Embolic filtering devices for bifurcated vessels |
US7172614B2 (en) | 2002-06-27 | 2007-02-06 | Advanced Cardiovascular Systems, Inc. | Support structures for embolic filtering devices |
US6696666B2 (en) | 2002-07-03 | 2004-02-24 | Scimed Life Systems, Inc. | Tubular cutting process and system |
US6969402B2 (en) | 2002-07-26 | 2005-11-29 | Syntheon, Llc | Helical stent having flexible transition zone |
US7303575B2 (en) | 2002-08-01 | 2007-12-04 | Lumen Biomedical, Inc. | Embolism protection devices |
US6969395B2 (en) | 2002-08-07 | 2005-11-29 | Boston Scientific Scimed, Inc. | Electroactive polymer actuated medical devices |
US7174636B2 (en) | 2002-09-04 | 2007-02-13 | Scimed Life Systems, Inc. | Method of making an embolic filter |
US7115138B2 (en) | 2002-09-04 | 2006-10-03 | Boston Scientific Scimed, Inc. | Sheath tip |
US7056328B2 (en) | 2002-09-18 | 2006-06-06 | Arnott Richard J | Apparatus for capturing objects beyond an operative site utilizing a capture device delivered on a medical guide wire |
US7331973B2 (en) | 2002-09-30 | 2008-02-19 | Avdanced Cardiovascular Systems, Inc. | Guide wire with embolic filtering attachment |
US7252675B2 (en) | 2002-09-30 | 2007-08-07 | Advanced Cardiovascular, Inc. | Embolic filtering devices |
US20040093011A1 (en) | 2002-10-01 | 2004-05-13 | Scimed Life Systems, Inc. | Embolic protection device with lesion length assessment markers |
US7998163B2 (en) | 2002-10-03 | 2011-08-16 | Boston Scientific Scimed, Inc. | Expandable retrieval device |
WO2004032805A1 (en) | 2002-10-11 | 2004-04-22 | Scimed Life Systems, Inc. | Embolic entrapment sheath |
US20040093012A1 (en) | 2002-10-17 | 2004-05-13 | Cully Edward H. | Embolic filter frame having looped support strut elements |
US7481823B2 (en) | 2002-10-25 | 2009-01-27 | Boston Scientific Scimed, Inc. | Multiple membrane embolic protection filter |
WO2004039287A2 (en) | 2002-10-29 | 2004-05-13 | Peacock James C Iii | Embolic filter device and related systems and methods |
US20040088000A1 (en) | 2002-10-31 | 2004-05-06 | Muller Paul F. | Single-wire expandable cages for embolic filtering devices |
US6989021B2 (en) | 2002-10-31 | 2006-01-24 | Cordis Corporation | Retrievable medical filter |
US20040098022A1 (en) | 2002-11-14 | 2004-05-20 | Barone David D. | Intraluminal catheter with hydraulically collapsible self-expanding protection device |
US20040111111A1 (en) | 2002-12-10 | 2004-06-10 | Scimed Life Systems, Inc. | Intravascular filter membrane with shape memory |
US7128752B2 (en) | 2002-12-23 | 2006-10-31 | Syntheon, Llc | Emboli and thrombi filter device and method of using the same |
US7625389B2 (en) | 2002-12-30 | 2009-12-01 | Boston Scientific Scimed, Inc. | Embolic protection device |
US20040138693A1 (en) | 2003-01-14 | 2004-07-15 | Scimed Life Systems, Inc. | Snare retrievable embolic protection filter with guidewire stopper |
US20040138694A1 (en) | 2003-01-15 | 2004-07-15 | Scimed Life Systems, Inc. | Intravascular filtering membrane and method of making an embolic protection filter device |
US7422595B2 (en) | 2003-01-17 | 2008-09-09 | Scion Cardio-Vascular, Inc. | Proximal actuator for medical device |
US20040147955A1 (en) | 2003-01-28 | 2004-07-29 | Scimed Life Systems, Inc. | Embolic protection filter having an improved filter frame |
US20040153119A1 (en) | 2003-01-30 | 2004-08-05 | Kusleika Richard S. | Embolic filters with a distal loop or no loop |
US7220271B2 (en) | 2003-01-30 | 2007-05-22 | Ev3 Inc. | Embolic filters having multiple layers and controlled pore size |
US7163549B2 (en) | 2003-02-11 | 2007-01-16 | Boston Scientific Scimed Inc. | Filter membrane manufacturing method |
JP2004261235A (en) | 2003-02-20 | 2004-09-24 | Kaneka Medix Corp | Medical wire device |
US20040167566A1 (en) | 2003-02-24 | 2004-08-26 | Scimed Life Systems, Inc. | Apparatus for anchoring an intravascular device along a guidewire |
US7740644B2 (en) | 2003-02-24 | 2010-06-22 | Boston Scientific Scimed, Inc. | Embolic protection filtering device that can be adapted to be advanced over a guidewire |
US7137991B2 (en) | 2003-02-24 | 2006-11-21 | Scimed Life Systems, Inc. | Multi-wire embolic protection filtering device |
US20040172055A1 (en) | 2003-02-27 | 2004-09-02 | Huter Scott J. | Embolic filtering devices |
US8591540B2 (en) | 2003-02-27 | 2013-11-26 | Abbott Cardiovascular Systems Inc. | Embolic filtering devices |
WO2004082530A2 (en) | 2003-03-19 | 2004-09-30 | Cook Incorporated | Delivery systems for deploying expandable intraluminal medical devices |
US20040193208A1 (en) | 2003-03-27 | 2004-09-30 | Scimed Life Systems, Inc. | Radiopaque embolic protection filter membrane |
US6960370B2 (en) | 2003-03-27 | 2005-11-01 | Scimed Life Systems, Inc. | Methods of forming medical devices |
EP1608295B1 (en) | 2003-03-28 | 2017-05-03 | Covidien LP | Double ended intravascular medical device |
US6902572B2 (en) | 2003-04-02 | 2005-06-07 | Scimed Life Systems, Inc. | Anchoring mechanisms for intravascular devices |
US20040199199A1 (en) | 2003-04-02 | 2004-10-07 | Scimed Life Systems, Inc. | Filter and method of making a filter |
US20040204737A1 (en) | 2003-04-11 | 2004-10-14 | Scimed Life Systems, Inc. | Embolic filter loop fabricated from composite material |
US7591832B2 (en) | 2003-04-24 | 2009-09-22 | Medtronic, Inc. | Expandable guide sheath and apparatus with distal protection and methods for use |
US7604649B2 (en) | 2003-04-29 | 2009-10-20 | Rex Medical, L.P. | Distal protection device |
US7331976B2 (en) | 2003-04-29 | 2008-02-19 | Rex Medical, L.P. | Distal protection device |
EP1472996B1 (en) | 2003-04-30 | 2009-09-30 | Medtronic Vascular, Inc. | Percutaneously delivered temporary valve |
US7942892B2 (en) | 2003-05-01 | 2011-05-17 | Abbott Cardiovascular Systems Inc. | Radiopaque nitinol embolic protection frame |
US6969396B2 (en) | 2003-05-07 | 2005-11-29 | Scimed Life Systems, Inc. | Filter membrane with increased surface area |
US20040249409A1 (en) | 2003-06-09 | 2004-12-09 | Scimed Life Systems, Inc. | Reinforced filter membrane |
US7537600B2 (en) | 2003-06-12 | 2009-05-26 | Boston Scientific Scimed, Inc. | Valved embolic protection filter |
US20050004594A1 (en) | 2003-07-02 | 2005-01-06 | Jeffrey Nool | Devices and methods for aspirating from filters |
US8337519B2 (en) | 2003-07-10 | 2012-12-25 | Boston Scientific Scimed, Inc. | Embolic protection filtering device |
US8535344B2 (en) | 2003-09-12 | 2013-09-17 | Rubicon Medical, Inc. | Methods, systems, and devices for providing embolic protection and removing embolic material |
US20050070953A1 (en) | 2003-09-18 | 2005-03-31 | Riley James W. | Medical device with flexible distal end loop and related methods of use |
US7604650B2 (en) | 2003-10-06 | 2009-10-20 | 3F Therapeutics, Inc. | Method and assembly for distal embolic protection |
US6994718B2 (en) | 2003-10-29 | 2006-02-07 | Medtronic Vascular, Inc. | Distal protection device for filtering and occlusion |
US8048103B2 (en) | 2003-11-06 | 2011-11-01 | Boston Scientific Scimed, Inc. | Flattened tip filter wire design |
US6972025B2 (en) | 2003-11-18 | 2005-12-06 | Scimed Life Systems, Inc. | Intravascular filter with bioabsorbable centering element |
US7354445B2 (en) | 2003-12-15 | 2008-04-08 | Medtronic Vascular Inc. | Embolic containment system with asymmetric frictional control |
US20050149110A1 (en) | 2003-12-16 | 2005-07-07 | Wholey Mark H. | Vascular catheter with an expandable section and a distal tip for delivering a thromboembolic protection device and method of use |
US20050159773A1 (en) | 2004-01-20 | 2005-07-21 | Scimed Life Systems, Inc. | Expandable retrieval device with dilator tip |
US20050159772A1 (en) | 2004-01-20 | 2005-07-21 | Scimed Life Systems, Inc. | Sheath for use with an embolic protection filtering device |
US8092483B2 (en) | 2004-03-06 | 2012-01-10 | Medtronic, Inc. | Steerable device having a corewire within a tube and combination with a functional medical component |
US7473265B2 (en) | 2004-03-15 | 2009-01-06 | Boston Scientific Scimed, Inc. | Filter media and methods of manufacture |
US7232462B2 (en) | 2004-03-31 | 2007-06-19 | Cook Incorporated | Self centering delivery catheter |
US8403976B2 (en) | 2004-04-08 | 2013-03-26 | Contego Medical Llc | Percutaneous transluminal angioplasty device with integral embolic filter |
US20050240215A1 (en) | 2004-04-21 | 2005-10-27 | Scimed Life Systems, Inc. | Magnetic embolic protection device and method |
WO2006055052A2 (en) | 2004-07-19 | 2006-05-26 | Michael Gertner | Methods and devices for chronic embolic protection |
US20060020286A1 (en) | 2004-07-22 | 2006-01-26 | Volker Niermann | Device for filtering blood in a vessel with helical elements |
US20060020285A1 (en) | 2004-07-22 | 2006-01-26 | Volker Niermann | Method for filtering blood in a vessel with helical elements |
US7918872B2 (en) | 2004-07-30 | 2011-04-05 | Codman & Shurtleff, Inc. | Embolic device delivery system with retractable partially coiled-fiber release |
US20060100659A1 (en) | 2004-09-17 | 2006-05-11 | Dinh Minh Q | Shape memory thin film embolic protection device with frame |
US8038696B2 (en) | 2004-12-06 | 2011-10-18 | Boston Scientific Scimed, Inc. | Sheath for use with an embolic protection filter |
US20060129181A1 (en) | 2004-12-13 | 2006-06-15 | Callol Joseph R | Retrieval device with retractable dilator tip |
US20060149312A1 (en) | 2004-12-30 | 2006-07-06 | Edward Arguello | Distal protection device with improved wall apposition |
US20060149313A1 (en) | 2004-12-30 | 2006-07-06 | Edward Arguello | Distal protection apparatus with improved wall apposition |
US7527637B2 (en) | 2005-01-07 | 2009-05-05 | Medtronic Vascular Inc. | Distal protection device for filtering and occlusion |
US20060206139A1 (en) | 2005-01-19 | 2006-09-14 | Tekulve Kurt J | Vascular occlusion device |
US20060184194A1 (en) | 2005-02-15 | 2006-08-17 | Cook Incorporated | Embolic protection device |
ATE539789T1 (en) | 2005-02-18 | 2012-01-15 | Tyco Healthcare | QUICKLY REPLACEABLE CATHETER |
-
1999
- 1999-12-23 US US09/469,431 patent/US6402771B1/en not_active Expired - Lifetime
-
2000
- 2000-12-19 AU AU22826/01A patent/AU2282601A/en not_active Abandoned
- 2000-12-19 WO PCT/US2000/034673 patent/WO2001045569A1/en active Application Filing
-
2001
- 2001-03-06 US US09/801,256 patent/US6641590B1/en not_active Expired - Lifetime
-
2002
- 2002-04-15 US US10/123,896 patent/US6592607B1/en not_active Expired - Lifetime
-
2003
- 2003-06-09 US US10/457,491 patent/US6913612B2/en not_active Expired - Lifetime
-
2005
- 2005-05-10 US US11/125,578 patent/US20050222607A1/en not_active Abandoned
-
2008
- 2008-04-29 US US12/111,870 patent/US8142442B2/en not_active Expired - Lifetime
Patent Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4152777A (en) * | 1977-11-21 | 1979-05-01 | Burroughs Corporation | On chip buffering for optimizing performance of a bubble memory |
US4347846A (en) * | 1979-12-07 | 1982-09-07 | Porges | Surgical extractor |
US4611594A (en) * | 1984-04-11 | 1986-09-16 | Northwestern University | Medical instrument for containment and removal of calculi |
US4619246A (en) * | 1984-05-23 | 1986-10-28 | William Cook, Europe A/S | Collapsible filter basket |
US4865017A (en) * | 1987-07-10 | 1989-09-12 | Olympus Optical Co., Ltd. | Endoscopic operation instrument |
US4873978A (en) * | 1987-12-04 | 1989-10-17 | Robert Ginsburg | Device and method for emboli retrieval |
US4998539A (en) * | 1987-12-18 | 1991-03-12 | Delsanti Gerard L | Method of using removable endo-arterial devices to repair detachments in the arterial walls |
US4990156A (en) * | 1988-06-21 | 1991-02-05 | Lefebvre Jean Marie | Filter for medical use |
US4969891A (en) * | 1989-03-06 | 1990-11-13 | Gewertz Bruce L | Removable vascular filter |
US5171233A (en) * | 1990-04-25 | 1992-12-15 | Microvena Corporation | Snare-type probe |
US5234458A (en) * | 1990-06-15 | 1993-08-10 | Antheor | Filter device intended to prevent embolisms |
US5486183A (en) * | 1990-10-09 | 1996-01-23 | Raychem Corporation | Device or apparatus for manipulating matter |
US5330482A (en) * | 1991-06-17 | 1994-07-19 | Wilson-Cook Medical Inc. | Endoscopic extraction devices, wire basket stone extractors, stent retrievers, snares and method of constructing the same |
US5192286A (en) * | 1991-07-26 | 1993-03-09 | Regents Of The University Of California | Method and device for retrieving materials from body lumens |
US5383887A (en) * | 1992-12-28 | 1995-01-24 | Celsa Lg | Device for selectively forming a temporary blood filter |
US5496330A (en) * | 1993-02-19 | 1996-03-05 | Boston Scientific Corporation | Surgical extractor with closely angularly spaced individual filaments |
US6066149A (en) * | 1997-09-30 | 2000-05-23 | Target Therapeutics, Inc. | Mechanical clot treatment device with distal filter |
US6187025B1 (en) * | 1999-09-09 | 2001-02-13 | Noble-Met, Ltd. | Vascular filter |
Cited By (121)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7780694B2 (en) | 1999-12-23 | 2010-08-24 | Advanced Cardiovascular Systems, Inc. | Intravascular device and system |
US8142442B2 (en) | 1999-12-23 | 2012-03-27 | Abbott Laboratories | Snare |
US8137377B2 (en) | 1999-12-23 | 2012-03-20 | Abbott Laboratories | Embolic basket |
US8845583B2 (en) | 1999-12-30 | 2014-09-30 | Abbott Cardiovascular Systems Inc. | Embolic protection devices |
US7918820B2 (en) | 1999-12-30 | 2011-04-05 | Advanced Cardiovascular Systems, Inc. | Device for, and method of, blocking emboli in vessels such as blood arteries |
US8177791B2 (en) | 2000-07-13 | 2012-05-15 | Abbott Cardiovascular Systems Inc. | Embolic protection guide wire |
US7931666B2 (en) | 2000-12-19 | 2011-04-26 | Advanced Cardiovascular Systems, Inc. | Sheathless embolic protection system |
US7662166B2 (en) | 2000-12-19 | 2010-02-16 | Advanced Cardiocascular Systems, Inc. | Sheathless embolic protection system |
US8016854B2 (en) | 2001-06-29 | 2011-09-13 | Abbott Cardiovascular Systems Inc. | Variable thickness embolic filtering devices and methods of manufacturing the same |
US7959646B2 (en) | 2001-06-29 | 2011-06-14 | Abbott Cardiovascular Systems Inc. | Filter device for embolic protection systems |
US20090019073A1 (en) * | 2001-08-29 | 2009-01-15 | Takahi Itoh | System and method for transcoding digital content |
US7959647B2 (en) | 2001-08-30 | 2011-06-14 | Abbott Cardiovascular Systems Inc. | Self furling umbrella frame for carotid filter |
US7842064B2 (en) | 2001-08-31 | 2010-11-30 | Advanced Cardiovascular Systems, Inc. | Hinged short cage for an embolic protection device |
US8262689B2 (en) | 2001-09-28 | 2012-09-11 | Advanced Cardiovascular Systems, Inc. | Embolic filtering devices |
US7972356B2 (en) | 2001-12-21 | 2011-07-05 | Abbott Cardiovascular Systems, Inc. | Flexible and conformable embolic filtering devices |
US7976560B2 (en) | 2002-09-30 | 2011-07-12 | Abbott Cardiovascular Systems Inc. | Embolic filtering devices |
US7815660B2 (en) | 2002-09-30 | 2010-10-19 | Advanced Cardivascular Systems, Inc. | Guide wire with embolic filtering attachment |
US8029530B2 (en) | 2002-09-30 | 2011-10-04 | Abbott Cardiovascular Systems Inc. | Guide wire with embolic filtering attachment |
US7678131B2 (en) | 2002-10-31 | 2010-03-16 | Advanced Cardiovascular Systems, Inc. | Single-wire expandable cages for embolic filtering devices |
US8591540B2 (en) | 2003-02-27 | 2013-11-26 | Abbott Cardiovascular Systems Inc. | Embolic filtering devices |
US7892251B1 (en) | 2003-11-12 | 2011-02-22 | Advanced Cardiovascular Systems, Inc. | Component for delivering and locking a medical device to a guide wire |
US7879065B2 (en) | 2004-03-19 | 2011-02-01 | Advanced Cardiovascular Systems, Inc. | Locking component for an embolic filter assembly |
US8308753B2 (en) | 2004-03-19 | 2012-11-13 | Advanced Cardiovascular Systems, Inc. | Locking component for an embolic filter assembly |
US7678129B1 (en) | 2004-03-19 | 2010-03-16 | Advanced Cardiovascular Systems, Inc. | Locking component for an embolic filter assembly |
US9259305B2 (en) | 2005-03-31 | 2016-02-16 | Abbott Cardiovascular Systems Inc. | Guide wire locking mechanism for rapid exchange and other catheter systems |
US20090138070A1 (en) * | 2005-05-24 | 2009-05-28 | Inspiremd Ltd. | Stent Apparatuses for Treatment Via Body Lumens and Methods of Use |
US20070276468A1 (en) * | 2005-05-24 | 2007-11-29 | Inspiremd Ltd. | Bifurcated stent assemblies |
US10932926B2 (en) | 2005-05-24 | 2021-03-02 | Inspiremd Ltd. | Stent assembly and methods for treatment via body lumens |
US10058440B2 (en) | 2005-05-24 | 2018-08-28 | Inspiremd, Ltd. | Carotid stent apparatus and methods for treatment via body lumens |
US8961586B2 (en) | 2005-05-24 | 2015-02-24 | Inspiremd Ltd. | Bifurcated stent assemblies |
US10070977B2 (en) | 2005-05-24 | 2018-09-11 | Inspire M.D. Ltd | Stent apparatuses for treatment via body lumens and methods of use |
US10201846B2 (en) | 2006-10-06 | 2019-02-12 | Nordson Corporation | Retrieval snare for extracting foreign objects from body cavities and method for manufacturing thereof |
US9271746B2 (en) | 2006-10-06 | 2016-03-01 | Cook Medical Technologies Llc | Retrieval snare for extracting foreign objects from body cavities and method for manufacturing thereof |
US10137015B2 (en) | 2006-10-18 | 2018-11-27 | Inspiremd Ltd. | Knitted stent jackets |
US8043323B2 (en) | 2006-10-18 | 2011-10-25 | Inspiremd Ltd. | In vivo filter assembly |
US9132261B2 (en) | 2006-10-18 | 2015-09-15 | Inspiremd, Ltd. | In vivo filter assembly |
US9526644B2 (en) | 2006-11-22 | 2016-12-27 | Inspiremd, Ltd. | Optimized drug-eluting stent assembly methods |
US10406008B2 (en) | 2006-11-22 | 2019-09-10 | Inspiremd, Ltd. | Optimized stent jacket having single fiber mesh |
US9782281B2 (en) | 2006-11-22 | 2017-10-10 | Inspiremd, Ltd. | Stent-mesh assembly and methods |
US10070976B2 (en) | 2006-11-22 | 2018-09-11 | Inspiremd Ltd. | Optimized stent jacket |
US10406006B2 (en) | 2006-11-22 | 2019-09-10 | Inspiremd, Ltd. | Methods of providing optimized drug-eluting stent assemblies |
US11051959B2 (en) | 2006-11-22 | 2021-07-06 | Inspiremd, Ltd. | Intravascular aneurysm treatment device and methods |
US9132003B2 (en) | 2006-11-22 | 2015-09-15 | Inspiremd, Ltd. | Optimized drug-eluting stent assembly |
US10537354B2 (en) | 2006-12-22 | 2020-01-21 | The Spectranetics Corporation | Retractable separating systems and methods |
US8961551B2 (en) | 2006-12-22 | 2015-02-24 | The Spectranetics Corporation | Retractable separating systems and methods |
US9028520B2 (en) | 2006-12-22 | 2015-05-12 | The Spectranetics Corporation | Tissue separating systems and methods |
US9801650B2 (en) | 2006-12-22 | 2017-10-31 | The Spectranetics Corporation | Tissue separating systems and methods |
US9808275B2 (en) | 2006-12-22 | 2017-11-07 | The Spectranetics Corporation | Retractable separating systems and methods |
US10869687B2 (en) | 2006-12-22 | 2020-12-22 | Spectranetics Llc | Tissue separating systems and methods |
US9289226B2 (en) | 2006-12-22 | 2016-03-22 | The Spectranetics Corporation | Retractable separating systems and methods |
US8216209B2 (en) | 2007-05-31 | 2012-07-10 | Abbott Cardiovascular Systems Inc. | Method and apparatus for delivering an agent to a kidney |
US7867273B2 (en) | 2007-06-27 | 2011-01-11 | Abbott Laboratories | Endoprostheses for peripheral arteries and other body vessels |
US20120041475A1 (en) * | 2007-10-17 | 2012-02-16 | Mindframe, Inc. | Thrombus management device |
US11786254B2 (en) | 2007-10-17 | 2023-10-17 | Covidien Lp | Methods of managing neurovascular obstructions |
US9220522B2 (en) | 2007-10-17 | 2015-12-29 | Covidien Lp | Embolus removal systems with baskets |
US10413310B2 (en) | 2007-10-17 | 2019-09-17 | Covidien Lp | Restoring blood flow and clot removal during acute ischemic stroke |
US9320532B2 (en) | 2007-10-17 | 2016-04-26 | Covidien Lp | Expandable tip assembly for thrombus management |
US9387098B2 (en) | 2007-10-17 | 2016-07-12 | Covidien Lp | Revascularization devices |
US8066757B2 (en) | 2007-10-17 | 2011-11-29 | Mindframe, Inc. | Blood flow restoration and thrombus management methods |
US8070791B2 (en) | 2007-10-17 | 2011-12-06 | Mindframe, Inc. | Multiple layer embolus removal |
US8197493B2 (en) | 2007-10-17 | 2012-06-12 | Mindframe, Inc. | Method for providing progressive therapy for thrombus management |
US11337714B2 (en) | 2007-10-17 | 2022-05-24 | Covidien Lp | Restoring blood flow and clot removal during acute ischemic stroke |
US9198687B2 (en) | 2007-10-17 | 2015-12-01 | Covidien Lp | Acute stroke revascularization/recanalization systems processes and products thereby |
US10123803B2 (en) | 2007-10-17 | 2018-11-13 | Covidien Lp | Methods of managing neurovascular obstructions |
US8574262B2 (en) | 2007-10-17 | 2013-11-05 | Covidien Lp | Revascularization devices |
US8585713B2 (en) | 2007-10-17 | 2013-11-19 | Covidien Lp | Expandable tip assembly for thrombus management |
US10016211B2 (en) | 2007-10-17 | 2018-07-10 | Covidien Lp | Expandable tip assembly for thrombus management |
US10835257B2 (en) | 2007-10-17 | 2020-11-17 | Covidien Lp | Methods of managing neurovascular obstructions |
US8945172B2 (en) | 2007-10-17 | 2015-02-03 | Covidien Lp | Devices for restoring blood flow and clot removal during acute ischemic stroke |
US8945143B2 (en) | 2007-10-17 | 2015-02-03 | Covidien Lp | Expandable tip assembly for thrombus management |
US8926680B2 (en) | 2007-11-12 | 2015-01-06 | Covidien Lp | Aneurysm neck bridging processes with revascularization systems methods and products thereby |
US11529156B2 (en) | 2008-02-22 | 2022-12-20 | Covidien Lp | Methods and apparatus for flow restoration |
US8679142B2 (en) | 2008-02-22 | 2014-03-25 | Covidien Lp | Methods and apparatus for flow restoration |
US10456151B2 (en) | 2008-02-22 | 2019-10-29 | Covidien Lp | Methods and apparatus for flow restoration |
US8940003B2 (en) | 2008-02-22 | 2015-01-27 | Covidien Lp | Methods and apparatus for flow restoration |
US9161766B2 (en) | 2008-02-22 | 2015-10-20 | Covidien Lp | Methods and apparatus for flow restoration |
US8545514B2 (en) | 2008-04-11 | 2013-10-01 | Covidien Lp | Monorail neuro-microcatheter for delivery of medical devices to treat stroke, processes and products thereby |
US20100022951A1 (en) * | 2008-05-19 | 2010-01-28 | Luce, Forward, Hamilton 7 Scripps, Llp | Detachable hub/luer device and processes |
US8088140B2 (en) | 2008-05-19 | 2012-01-03 | Mindframe, Inc. | Blood flow restorative and embolus removal methods |
US10722255B2 (en) | 2008-12-23 | 2020-07-28 | Covidien Lp | Systems and methods for removing obstructive matter from body lumens and treating vascular defects |
US9724122B2 (en) | 2012-09-14 | 2017-08-08 | The Spectranetics Corporation | Expandable lead jacket |
US10368900B2 (en) | 2012-09-14 | 2019-08-06 | The Spectranetics Corporation | Tissue slitting methods and systems |
US9949753B2 (en) | 2012-09-14 | 2018-04-24 | The Spectranetics Corporation | Tissue slitting methods and systems |
US9413896B2 (en) | 2012-09-14 | 2016-08-09 | The Spectranetics Corporation | Tissue slitting methods and systems |
US10531891B2 (en) | 2012-09-14 | 2020-01-14 | The Spectranetics Corporation | Tissue slitting methods and systems |
US11596435B2 (en) | 2012-09-14 | 2023-03-07 | Specrtranetics Llc | Tissue slitting methods and systems |
US9763692B2 (en) | 2012-09-14 | 2017-09-19 | The Spectranetics Corporation | Tissue slitting methods and systems |
US9456872B2 (en) | 2013-03-13 | 2016-10-04 | The Spectranetics Corporation | Laser ablation catheter |
US9883885B2 (en) | 2013-03-13 | 2018-02-06 | The Spectranetics Corporation | System and method of ablative cutting and pulsed vacuum aspiration |
US10265520B2 (en) | 2013-03-13 | 2019-04-23 | The Spetranetics Corporation | Alarm for lead insulation abnormality |
US9925371B2 (en) | 2013-03-13 | 2018-03-27 | The Spectranetics Corporation | Alarm for lead insulation abnormality |
US10799293B2 (en) | 2013-03-13 | 2020-10-13 | The Spectranetics Corporation | Laser ablation catheter |
US10383691B2 (en) | 2013-03-13 | 2019-08-20 | The Spectranetics Corporation | Last catheter with helical internal lumen |
US9283040B2 (en) | 2013-03-13 | 2016-03-15 | The Spectranetics Corporation | Device and method of ablative cutting with helical tip |
US9937005B2 (en) | 2013-03-13 | 2018-04-10 | The Spectranetics Corporation | Device and method of ablative cutting with helical tip |
US10485613B2 (en) | 2013-03-13 | 2019-11-26 | The Spectranetics Corporation | Device and method of ablative cutting with helical tip |
US9291663B2 (en) | 2013-03-13 | 2016-03-22 | The Spectranetics Corporation | Alarm for lead insulation abnormality |
US10835279B2 (en) | 2013-03-14 | 2020-11-17 | Spectranetics Llc | Distal end supported tissue slitting apparatus |
US11925380B2 (en) | 2013-03-14 | 2024-03-12 | Spectranetics Llc | Distal end supported tissue slitting apparatus |
US10219819B2 (en) | 2013-03-15 | 2019-03-05 | The Spectranetics Corporation | Retractable blade for lead removal device |
US10849603B2 (en) | 2013-03-15 | 2020-12-01 | Spectranetics Llc | Surgical instrument for removing an implanted object |
US11925334B2 (en) | 2013-03-15 | 2024-03-12 | Spectranetics Llc | Surgical instrument for removing an implanted object |
US10524817B2 (en) | 2013-03-15 | 2020-01-07 | The Spectranetics Corporation | Surgical instrument including an inwardly deflecting cutting tip for removing an implanted object |
US9603618B2 (en) | 2013-03-15 | 2017-03-28 | The Spectranetics Corporation | Medical device for removing an implanted object |
US10314615B2 (en) | 2013-03-15 | 2019-06-11 | The Spectranetics Corporation | Medical device for removing an implanted object |
US10136913B2 (en) | 2013-03-15 | 2018-11-27 | The Spectranetics Corporation | Multiple configuration surgical cutting device |
US10052129B2 (en) | 2013-03-15 | 2018-08-21 | The Spectranetics Corporation | Medical device for removing an implanted object |
US9980743B2 (en) | 2013-03-15 | 2018-05-29 | The Spectranetics Corporation | Medical device for removing an implanted object using laser cut hypotubes |
US9668765B2 (en) | 2013-03-15 | 2017-06-06 | The Spectranetics Corporation | Retractable blade for lead removal device |
US10842532B2 (en) | 2013-03-15 | 2020-11-24 | Spectranetics Llc | Medical device for removing an implanted object |
US10448999B2 (en) | 2013-03-15 | 2019-10-22 | The Spectranetics Corporation | Surgical instrument for removing an implanted object |
US9956399B2 (en) | 2013-03-15 | 2018-05-01 | The Spectranetics Corporation | Medical device for removing an implanted object |
US9925366B2 (en) | 2013-03-15 | 2018-03-27 | The Spectranetics Corporation | Surgical instrument for removing an implanted object |
US9918737B2 (en) | 2013-03-15 | 2018-03-20 | The Spectranetics Corporation | Medical device for removing an implanted object |
US11160579B2 (en) | 2013-03-15 | 2021-11-02 | Spectranetics Llc | Multiple configuration surgical cutting device |
US10405924B2 (en) | 2014-05-30 | 2019-09-10 | The Spectranetics Corporation | System and method of ablative cutting and vacuum aspiration through primary orifice and auxiliary side port |
USD806245S1 (en) | 2015-02-20 | 2017-12-26 | The Spectranetics Corporation | Medical device handle |
USD819204S1 (en) | 2015-02-20 | 2018-05-29 | The Spectranetics Corporation | Medical device handle |
USD854682S1 (en) | 2015-02-20 | 2019-07-23 | The Spectranetics Corporation | Medical device handle |
USD770616S1 (en) | 2015-02-20 | 2016-11-01 | The Spectranetics Corporation | Medical device handle |
USD765243S1 (en) | 2015-02-20 | 2016-08-30 | The Spectranetics Corporation | Medical device handle |
Also Published As
Publication number | Publication date |
---|---|
US6402771B1 (en) | 2002-06-11 |
AU2282601A (en) | 2001-07-03 |
US8142442B2 (en) | 2012-03-27 |
US6913612B2 (en) | 2005-07-05 |
WO2001045569A1 (en) | 2001-06-28 |
US20080275497A1 (en) | 2008-11-06 |
US20030199921A1 (en) | 2003-10-23 |
US6592607B1 (en) | 2003-07-15 |
US6641590B1 (en) | 2003-11-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6402771B1 (en) | Snare | |
US9113936B2 (en) | Snare | |
US7780694B2 (en) | Intravascular device and system | |
US7004956B2 (en) | Embolic basket | |
US6551342B1 (en) | Embolic filter | |
US11529155B2 (en) | Retrieval systems and methods for use thereof | |
US8366737B2 (en) | Expandable emboli filter and thrombectomy device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |