CA2294707A1 - Removable occlusion system for aneurysm neck - Google Patents
Removable occlusion system for aneurysm neck Download PDFInfo
- Publication number
- CA2294707A1 CA2294707A1 CA002294707A CA2294707A CA2294707A1 CA 2294707 A1 CA2294707 A1 CA 2294707A1 CA 002294707 A CA002294707 A CA 002294707A CA 2294707 A CA2294707 A CA 2294707A CA 2294707 A1 CA2294707 A1 CA 2294707A1
- Authority
- CA
- Canada
- Prior art keywords
- elongate
- elongate members
- aneurysm
- struts
- expandable member
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12027—Type of occlusion
- A61B17/12036—Type of occlusion partial occlusion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12027—Type of occlusion
- A61B17/1204—Type of occlusion temporary occlusion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
- A61B17/12113—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/12168—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure
- A61B17/12172—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure having a pre-set deployed three-dimensional shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/12181—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device formed by fluidized, gelatinous or cellular remodelable materials, e.g. embolic liquids, foams or extracellular matrices
- A61B17/12186—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device formed by fluidized, gelatinous or cellular remodelable materials, e.g. embolic liquids, foams or extracellular matrices liquid materials adapted to be injected
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00867—Material properties shape memory effect
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B2017/1205—Introduction devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
Abstract
A system for treating an aneurysm (26) in a vessel (28) includes a delivery device (10) having a delivery portion suitable for delivery of embolic material (44). The delivery device (10) is placed in a neck (40) of the aneurysm (36) and an expandable member (16) is placed proximate the neck (40).
The expandable member (16) is expanded to overlie substantially the entire neck (40). Embolic material (44) is delivered to the aneurysm (36) with the delivery device. The expandable member (16) is held over the neck (40) to inhibit movement of the embolic material (44) out of the aneurysm (36). Blood is allowed to flow out of the aneurysm (36), past the neck (40) of the aneurysm (36), and through the vessel (28) while the expandable member (16) is held over the neck (40) of the aneurysm (36).
The expandable member (16) is expanded to overlie substantially the entire neck (40). Embolic material (44) is delivered to the aneurysm (36) with the delivery device. The expandable member (16) is held over the neck (40) to inhibit movement of the embolic material (44) out of the aneurysm (36). Blood is allowed to flow out of the aneurysm (36), past the neck (40) of the aneurysm (36), and through the vessel (28) while the expandable member (16) is held over the neck (40) of the aneurysm (36).
Description
REMOVABLE OCCLUSION SYSTEM
FOR ANEURYSM NECK
BACKGROUND OF THE INVENTION
The present invention deals with a system for treating an aneurysm. 'More specifically, the present invention deals with a removable occlusion system deployed in the vasculature containing the aneurysm.
Several methods of treating aneurysms have been attempted, with varying degrees of success. For example, open craniotomy is a procedure by which an aneurysm is located, and treated, extravascularly. This type of procedure has significant disadvantages. For example, the patient undergoing open craniotomy must undergo general anesthesia. Also, the patient undergoes a great deal of trauma in the area of the aneurysm by virtue of the fact that the surgeon must sever various tissues in order to reach the aneurysm. In treating cerebral aneurysms extravascularly, for instances, the surgeon must typically remove a portion of the patient ~ s skull, and must also traumatize brain tissue in order to reach the aneurysm.
Other techniques used in treating aneurysms are performed endovascularly. Such techniques typically involve attempting to form a mass within the sac of the aneurysm. Typically, a microcatheter is used to access the aneurysm. The distal tip of the micro catheter is placed within the sac of the aneurysm, and the microcatheter is used to inject embolic material into the sac of the aneurysm. The embolic material includes, for example, detachable coils or an embolic agent, such as a liquid polymer. The injection of these types of embolic materials suffer from disadvantages, most of which are associated with migration of the embolic material out of the aneurysm into the parent artery.
FOR ANEURYSM NECK
BACKGROUND OF THE INVENTION
The present invention deals with a system for treating an aneurysm. 'More specifically, the present invention deals with a removable occlusion system deployed in the vasculature containing the aneurysm.
Several methods of treating aneurysms have been attempted, with varying degrees of success. For example, open craniotomy is a procedure by which an aneurysm is located, and treated, extravascularly. This type of procedure has significant disadvantages. For example, the patient undergoing open craniotomy must undergo general anesthesia. Also, the patient undergoes a great deal of trauma in the area of the aneurysm by virtue of the fact that the surgeon must sever various tissues in order to reach the aneurysm. In treating cerebral aneurysms extravascularly, for instances, the surgeon must typically remove a portion of the patient ~ s skull, and must also traumatize brain tissue in order to reach the aneurysm.
Other techniques used in treating aneurysms are performed endovascularly. Such techniques typically involve attempting to form a mass within the sac of the aneurysm. Typically, a microcatheter is used to access the aneurysm. The distal tip of the micro catheter is placed within the sac of the aneurysm, and the microcatheter is used to inject embolic material into the sac of the aneurysm. The embolic material includes, for example, detachable coils or an embolic agent, such as a liquid polymer. The injection of these types of embolic materials suffer from disadvantages, most of which are associated with migration of the embolic material out of the aneurysm into the parent artery.
This can cause permanent and irreversible occlusion of the parent artery.
For example, when detachable coils are used to occlude an aneurysm which does not have a well defined neck region, the detachable coils can migrate out of the sac of the aneurysm and into the parent artery.
Further, it is, at times, difficult to gauge exactly how full the sac of the aneurysm is when detachable coils are being injected. Therefore, there is a risk of overfilling the aneurysm in which case the detachable coils also spill out into the parent artery.
Another disadvantage of detachable coils involves coil compaction over time. After filling the aneurysm, there remains space between the coils.
Continued hemodynamic forces from the circulation act to compact the coil mass resulting in a cavity in the aneurysm neck. Thus, the aneurysm can recanalize.
Embolic agent migration is also a problem.
For instance, where a liquid polymer is injected into the sac of the aneurysm, it can migrate out of the sac of the aneurysm due to the hemodynamics of the system.
This can also lead to irreversible occlusion of the parent vessel.
Techniques have been attempted in order to deal with the disadvantages associated with embolic material migration to the parent vessel. Some such techniques, commonly referred to as flow arrest techniques, typically involve temporarily occluding the parent vessel proximal of the aneurysm, so that no blood flow occurs through the parent vessel, until a thrombotic mass has formed in the sac of the aneurysm which helps reduce the tendency of the embolic material to migrate out of the aneurysm sac. However, thrombotic mass can dissolve through normal lysis of blood. Also, in certain cases, it is highly undesirable to occlude the parent vessel even temporarily. Therefore, this technique is, at times, not available as a treatment option. In addition, even occluding the parent vessel may not prevent all embolic material migration into the parent vessel.
Another endovascular technique for treating aneurysms involves inserting a detachable balloon into the sac of the aneurysm using a microcatheter. The detachable balloon is then inflated using saline and/or contrast fluid. The balloon is then detached from the microcatheter and left within the sac of the aneurysm in an attempt to fill the sac of the aneurysm. However, detachable balloons also suffer disadvantages. For example, detachable balloons, when inflated, typically will not conform to the interior configuration of the aneurysm sac. Instead, the detachable balloon requires the aneurysm sac to conform to the exterior surface of the detachable balloon. Thus, there is an increased risk that the detachable balloon will rupture the sac of the aneurysm. Further, detachable balloons can rupture and migrate out of the aneurysm.
SUMMARY OF THE INVENTION
A system for treating an aneurysm in a vessel includes a delivery device having a delivery portion suitable for delivery of embolic material. The delivery device is placed in a neck of the aneurysm and an expandable member is placed proximate the neck. The expandable member is expanded to overlie substantially the entire neck. Embolic material is delivered to the aneurysm with a delivery device. The expandable member is held over the neck to inhibit movement of the embolic material out of the aneurysm. Blood is allowed to flow out of the aneurysm, past the neck of the aneurysm, and through the vessel while the expandable member is held over the neck of the aneurysm.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a side view of a portion of a neck occlusion device in accordance with the present invention.
FIGS. 2A and 2B are side and end views, respectively, of the neck occlusion device shown in FIG.
1 in an expanded position.
FIG. 2C is a side view of the device shown in FIG. 2A in an expanded position.
FIGS. 3-7 illustrate the deployment of the neck occlusion device shown in FIGS. 1, 2A.and 2B during treatment of an aneurysm.
FIG. 8 illustrates a second embodiment of the neck occlusion device in accordance with the present invention.
FIG. 9 illustrates yet another embodiment of a neck occlusion device in accordance with the present invention.
FIGS. 10-11D illustrate two additional embodiments of a neck occlusion device in accordance with the present invention.
FIGS. 12-13B illustrate yet another embodiment of a neck occlusion device in accordance with the present invention.
FIGS. 14A-14I illustrate additional embodiments of neck occlusion devices in accordance with the present invention.
FIGS. 15A and 15B illustrate yet another embodiment of a neck occlusion device in accordance with the present invention.
y FIGS. 16A-16D illustrate yet another embodiment of a neck occlusion device in accordance with the present invention.
FIG. 17 illustrates yet another embodiment of a neck occlusion device in accordance with the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
FIG. 1 is a side view of a portion of a neck occlusion device 10 in accordance with the present invention. Device 10 includes outer tubular member 12, inner tubular member 14, and mesh portion 16. Tubes 12 and 14 are preferably coaxially arranged relative to one another, and are longitudinally siidable relative to one another. Mesh portion 16 is attached, at its distal end 18, to a distal portion 20 of inner tubular member 14.
Mesh 16 is attached at its proximal end 22 to a distal portion 24 of outer tubular member 12.
Mesh portion 16 is preferably formed of braided or woven filaments or fibers which are relatively flexible. Therefore, when tubes 12 and 14 are moved relative to one another, mesh portion I6 is deployed radially outwardly relative to the tubes 12 and 14. This is illustrated by FIG. 2A.
FIG. 2A shows similar items to those shown in FIG. 1, and they are similarly numbered. However, in FIG. 2A, inner tube 14 has been retracted in the direction indicated by arrow 26 relative to outer tube 12. This causes the distal end 20 of inner tube 14 to approach the distal end 24 of outer tube 12. This also, consequently, causes the central portion of mesh 16 to deploy radially outwardly relative to the two tubular members 12 and 14 to form a substantially disk-shaped (or dish-shaped) configuration. It should also be noted that a pull wire can be alternatively implemented in place of tube 14. FIG. 2B is an end view of device 10 in the deployed position shown in FIG. 2A. However, FIG. 2B also shows that mesh portion 16 is relatively porous. This has advantages discussed with respect to FIGS. 3-7.
FIG. 2C illustrates device 10 with inner tube 14 even further retracted in the direction indicated by arrow 26 relative to outer tube 12. This causes mesh portion 16 to assume a general dish or concave shape.
The present invention contemplates deployment of device 10 in this shape as well as in the other deployed shapes discussed herein.
FIGS. 3-7 illustrate the deployment of device 10 in treating an aneurysm. FIG. 3 shows a blood vessel 28 having a main lumen 30 which bifurcates into two branch lumens 32 and 34 which communicate with lumen 30.
At a region proximate the transition from lumen 30 to branch lumens 32 and 34, aneurysm 36 has formed in the vessel wall. Aneurysm 36 has an interior sac portion 38 and a neck region 40. In order to treat aneurysm 36, FIG. 3 illustrates that device 10 is advanced through the vasculature, through lumen 30, to a region proximate the neck 40 of aneurysm 36. In the preferred embodiment, inner tube 14 has a distal extension portion 42 which extends beyond the distal end of mesh 16.
FIG. 4 illustrates that, once device 10 is placed in the region of neck 40 in the vasculature, mesh portion 16 is moved to its deployed (or radially expanded) position. This is done as described with respect to FIG. 2A, by moving tubes 14 and 16 longitudinally relative to one another to cause mesh portion 16 to deploy radially outwardly. FIG. 4 shows that, in the preferred embodiment, mesh portion 16, when deployed, substantially overlies the entire neck portion 40 of aneurysm 36.
FIG. 5 is similar to FIGS. 3 and 4, and similar items are similarly numbered. However, FIG. 5 illustrates that, once mesh portion 16 is deployed over the neck region 40 of aneurysm 36, embolic material 44 is placed in the interior sac 38 of aneurysm 36. In one preferred embodiment, the embolic material includes any suitable embolic material, such as coils, detachable coils, liquid embolic agents, or other suitable embolic material. The apertures in mesh portion 36 allow blood to migrate out of the sac portion 38 of aneurysm 36 upon being displaced in aneurysm 36 by embolic materials introduced into aneurysm 36. Also, device 10, when deployed, preferably has a low enough profile that it does not block any of lumens 30, 32 or 34. The porous nature of mesh portion 16 also allows blood to flow through vessels 30, 32 and 34 through mesh portion 16.
In the embodiment shown in FIG. 4, because aneurysm 36 is located in a region where lumen 30 bifurcates into lumens 32 and 34, mesh portion 16 may typically have a larger outer diameter than the inner diameter of lumen 30. In other words, mesh portion 16, when deployed, expands radially outwardly and extends down a portion of lumens 32 and 34. In being so formed, the outer diameter of mesh portion 16, in the deployed position, can be larger than the inner diameter of lumen 30. However, since mesh portion 16 collapses to the position shown in FIG. 3, it can be advanced and removed through vessel 30, yet still be deployed in a large enough configuration to substantially block the entire neck region 40 of aneurysm 36.
FIG. 6 shows another preferred way of placing embolic material 44 in the sac 38 of aneurysm 36. FIG.
_g_ 6 illustrates that a microcatheter 46 has been advanced through lumen 30 and through the apertures in mesh portion 16. Of course, microcatheter 46 can also be placed in the sac 38 of aneurysm 36 prior to the deployment of mesh portion 16. In that case, when mesh portion 16 is deployed, it simply deflects a portion of microcatheter 46 out toward the wall of the neck region 40 of aneurysm 36, but does not exert enough pressure on microcatheter 46 to pinch off or close the lumen IO thereof. Therefore, embolic materials can still be advanced therethrough. It should also be noted that, in the embodiment shown in FIG. 6, where a separate microcatheter 46 is used to introduce embolic material into the sac 38 of aneurysm 36, the central tube 14 of device 10 need not be hollow, but can instead be a core wire device, or another suitable salid elongate member.
FIG. 7 illustrates device 10 as deployed in treating an aneurysm 36'. Aneurysm 36' is similar to aneurysm 36, except that it is offset from the region where lumen 30 bifurcates into lumens 32 and 34.
However, it is only offset by a small distance.
Therefore, device 10 can be maneuvered to have its distal tip within the sac 38' of aneurysm 36' . Also, it is offset by a distance which is small enough that longitudinal pressure applied to device 10 through tubes 12 and 14 causes deployed mesh portion 16 to abut and substantially overlie the neck region 40' of aneurysm 36'. It should be noted that the longitudinal force applied can cause mesh portion 16 to direct a force against the neck region 40 either directly, or by the tubes 12 and 14 backing up against lumen wall 48 which is substantially directly across from the opening in neck region 40' of aneurysm 36'. This causes tubes 12 r _g_ and 14 to deflect toward the neck region 40' of aneurysm 36' and exert a force thereagainst.
FIG. 8 illustrates device 10 formed in accordance with another preferred embodiment of the present invention. In FIG. 8, a resilient material layer 50 is disposed over the outer radial surface of mesh portion 16. Resilient layer 50 is preferably a stretchy, woven material which has a number of apertures or perforations formed therein. However, the perforations are not as large as those which are formed in mesh portion 16, itself. Layer 50 thus provides the added advantage that mesh portion 16, when deployed, has a greater surface area facing neck region 40 of aneurysm 36. This enhances the ability of device 10 to deflect embolic material introduced into the sac 38 of aneurysm 36 back into aneurysm 36, and to keep it from migrating through neck portion 40 into the lumens 30, 32 or 34 of vessel 28. However, the perforations still allow blood from the sac 38 of aneurysm 36 to flow out into vessels 30, 32 or 34, upon being displaced by embolic materials introduced into the sac 38 of aneurysm 36.
FIG. 9 illustrates another method of using device 10 in accordance with the present invention. In the embodiment shown in FIG. 9, device 10 has substantially the same elements as that shown in FIG. 1.
However, device 10 is configured to form a longer, wider tubular configuration when deployed radially outwardly, than that shown in FIGS. 2A, 4, 5 and 7. Thus, device 10 is more suitable for use in treating aneurysms, such as aneurysm 52, which is formed in a vessel wall that is not near a bifurcation in the vasculature. In the preferred embodiment shown in FIG. 9, microcatheter 54 is ffirst introduced through neck region 56 of aneurysm 52 and into the sac of aneurysm 52. Then, device TO is placed proximate neck region 56 and deployed to the expanded position shown in FIG. 9. Embolic material is then introduced through microcatheter 54 into aneurysm 52 and device 10 is in place to deflect back into aneurysm 52~substantially all embolic material which would otherwise tend to migrate through neck 56 into the parent vessel.
Alternatively, device 10 can first be introduced and placed proximate neck portion 56 of aneurysm 52 and maintained in the collapsed position.
Microcatheter 54 is then introduced into aneurysm 52 and device 10 is then deployed outwardly. Also, as with the embodiment described in FIG. 6, mesh portion 16 of device 10 can be formed of a material having wide enough apertures that microcatheter 54 can be introduced therethrough. In that embodiment, it does not matter whether device 10 is first deployed, and then microcatheter 54 is inserted in aneurysm 52, or whether microcatheter 54 is first inserted in aneurysm 52 and then device 10 is deployed.
Of course, as with respect to device 10 shown in FIG. 8, the embodiment of device 10 shown in FIG. 9 can also be covered by a resilient material layer 50.
Substantially the same advantages are achieved by such a covering layer as those achieved in the embodiment shown in FIG. 6.
It should further be noted that device 10 shown in FIG. 9 preferably has substantial perforations or apertures therein, when deployed. This serves two purposes. First, it allows blood to flow out of aneurysm 52 as it is displaced by an embolic material.
Also, it allows blood to continue flowing through the parent vessel, and thus does not tend to cause occlusion of the parent vessel when deployed in the parent vessel.
In one preferred embodiment, mesh portion 16 is formed of woven strands of polymer material, such as nylon, polypropylene or polyester. The polymer strands can be filled with a radiopaque material which allows the physician treating the aneurysm to fluoroscopically visualize the location of mesh portion 16 within the vasculature. Radiopaque filler materials preferably include bismuth trioxide, tungsten, titanium dioxide or barium sulfate, or radiopaque dyes such as iodine. It should also be noted that mesh portion 16 can be formed by strands of radiopaque material. The radiopaque strands allow the physician to fluoroscopically visualize the location of mesh portion 16, without the use of filled polymer materials. Such radiopaque strands may preferably be formed of gold, platinum, or a platinum/iridium alloy.
In the embodiment in which mesh portian 16 is formed of radiopaque metal strands, it is preferred to cover the strands with a polymer coating or extrusion.
The coating or extrusion over the radiopaque wire strands provides fluoroscopic visualization of mesh portion 16, but also increases the resistance of the strands to bending fatigue and may also increase lubricity of the strands. The polymer coating or extrusion, in one preferred embodiment, is coated or treated with an agent which tends to resist clotting, such as heparin. Such clot resistant coatings are generally known. The polymer coating or extrusion can be any suitable extrudable polymer, or any polymer that can be applied in a thin coating, such as teflon or polyurethane.
In yet another embodiment, the strands of mesh portion 16 are formed using both metal and polymer braided strands. Combining the metal strands with the polymer strands into a braid changes the flexibility characteristics of mesh portion 16. The force required to deploy or collapse such a mesh portion is significantly reduced over that required for a mesh portion that includes only metal mesh strands. However, the radiopaque characteristics of the mesh for fluoroscopic visualization are retained. Metal strands forming such a device preferably include stainless steel, gold, platinum, platinum/iridium or nitinol.
Polymer strands forming the device can preferably include nylon, polypropylene, polyester or teflon.
Further, polymer strands of mesh portion 16 can be chemically modified to make them radiopaque, such as by using gold deposition onto the polymer strands, or by using ion beam plasma deposition of suitable metal ions onto the polymer strands.
Mesh portion 16 can also be formed with filaments or strands of varying diameter and/or varying flexibility. By varying the size or flexibility of the polymer strands, the flexibility characteristics of mesh portion 16, upon deployment, can also be varied. By varying the flexibility characteristics, both the deployed and collapsed configuration of mesh portion 16 can be varied or changed to substantially any desired shape. As with previous embodiments, preferred materials for the strands include nylon, polypropylene, polyester and teflon.
Not only can mesh portion 16 be formed of both polymer strands or filaments and metal strands or filaments, but it can be formed using filaments of different polymer materials. For example, different polymer materials having different flexibility characteristics can be used in forming mesh portion 16.
This alters the flexibility characteristics to change the resultant configuration of mesh portion 16 in both the deployed and the collapsed positions.
FIGS. 10-14I illustrate the present invention formed in the shape of a collapsing tube. FIG. 10 illustrates a portion. of device 60 in accordance with the present invention. Device 60 includes inner tube 62 and outer tube 64. Tubes 62 and 64 are preferably coaxially arranged relative to one another. Collapsing tube portion 66 is coupled to inner tube 62 and outer tube 64. Collapsing tube portion 66 can be a separate member coupled to tubes 62 and 64, or it can be integrally formed with one or both of tubes 62 and 64.
Collapsing tube portion 66 has a distal end 68 thereof which is attached to distal portion 70 of inner tube 62.
Collapsing tube portion 66 also has a proximal end 72 which is attached to a distal region 74 of outer tube 64. In the embodiment shown in FIG. 10, collapsing tube 60 has a plurality of notches 76 formed therein. By forming notches 76, a plurality of struts 78 are defined therebetween and extend generally from the proximal end 72 of collapsing tube portion 66 to the distal end 68 thereof.
FIG. 11A illustrates device 60 in the deployed position. Tubes 62 and 64 are preferably longitudinally moveable relative to one another. Therefore, in order to deploy device 60, inner tube 62 is pulled in the direction generally indicated by arrow 80 relative to outer tube 64. This causes the distal end 74 of outer tube 64 to advance toward the distal end 70 of inner tube 62. This movement causes the struts 78 defined by notches 76 to bow or deploy generally radially outwardly, away from tubes 62 and 64 to the configuration shown in FIG. 11A.
FIG. 11B illustrates an end view of device 60.
FIG. 11B illustrates that struts 78 deploy radially outwardly in a flower pedal-like arrangement. Thus, notches 76 allow for the movement of blood out from within an aneurysm being treated by device 60 as it is replaced by embolic material, but struts 78 form deflecting surfaces to inhibit migration of the embolic material out of the aneurysm.
Thus, device 60 can be used in a similar fashion to device 10 shown in FIGS. 1-10 and discussed in greater detail above. However, device 60 provides struts 78 which typically have a larger constant surface area than the filaments forming mesh portion 16 of device 10. Thus, blood clotting may be less likely to occur around device 60. Also, the profile of device 60 in the collapsed position shown in FIG. 10 is typically slightly larger than the profile of mesh portion ,16 when in the collapsed position shown in FIG. 1. However, device 60 is also typically less dense than mesh portion 16 when in the collapsed position and thus allows for easier blood flow around it during advancement or retraction in the vasculature.
FIG. 11C illustrates device 60 with a modification. Thread or suture material 82 is laced or threaded through struts ?8 and across the spaces formed by notches 76 to create a mesh in notches 76. Suture material 82 thus provides additional surface area when device 60 is deployed. This additional surface area serves to enhance the ability of device 60 to deflect coils or other embolic material to keep it from migrating out of the aneurysm being treated. Any suitable type of polymer, thread, suture material, or other suitable polymer strands can be used to form thread 82.
FIG. 11D shows an end view of device 60 where outer tube 64 has been rotated with respect to inner tube 62. This causes the proximal ends of struts 78 to be rotated relative to the distal ends of struts 78 about the periphery~of tubes 62 and 64. This type of rotation typically reduces the overall outer diameter of device 60 in the deployed position . It also changes the spacing between struts 78. In other words, the proximal ends of struts 78 are rotated to fill in a portion of the notches 76, when viewed from the distal end of device 60, to provide additional surface area for deflection of embolic material. Also, since the rotation of tubes 62 and 64 relative to one another changes the overall outer diameter of device 60 in the deployed position, this feature can be used in order to accommodate aneurysms having various neck sizes.
FIGS. 12-13B illustrate another embodiment of a sliced tube device in accordance with the present invention. FIG. 12 shows device 84 in a collapsed position. Device 84 is similar to device 60 in that a collapsing tube portion 86 has a plurality of struts 88 formed therein. However, instead of struts 88 being formed between notches or physical voids in tube portion 86, tube portion 86 simply includes a plurality of longitudinal slices 90 which define struts 88.
In addition, an inner collapsible tube portion 92 is also provided in device 84. Inner collapsible tube portion 92 is similar to outer collapsible tube portion 86, and is preferably coaxially arranged relative to outer tube portion 86. The outer tube 86 has an inner diameter which is slightly larger than the outer diameter of inner tube 92. Inner tube portion 92 also has a plurality of generally longitudinal cuts 94 formed therein to define inner struts 96. Outer collapsible tube portion 86 and inner collapsible tube portion 92 are preferably coupled to one another at their distal ends and to the distal end of inner tube 62. The proximal ends of inner and outer collapsible tube portion 86 and 92 are coupled to a distal region 74 of tube 64 and are slidable over inner tube 62.
FIG. 13A shows device 84 in the deployed position. Inner tube 62 is movable longitudinally within the interior of inner collapsible tube portion 92. Therefore, withdrawal of tube 62 relative to tube 64 causes both the distal ends of inner and outer collapsible tube portions 84 and 92 to advance toward their respective proximal ends. This causes the struts 88 and 96 to deploy radially outwardly as shown in FIG.
13A.
Also, in the preferred embodiment, struts 88 are angularly offset about the outer periphery of device 84 from inner struts 96. Therefore, when device 84 is deployed, the inner struts 96 deploy outwardly within the gaps left by the deployed outer struts 88. This is better illustrated in FIG. 13B which is an end view taken from the distal end of device 84 shown in FIG.
13A.
Devices 60 and 84 are preferably formed of any suitable material, such as PVC, polyurethane, low density polyethylene or nitinol. The design of the struts in devices 60 and 84 provide a relatively large and consistent surface area, with also relatively large amount of space between the deployed struts, when in the deployed position.
FIGS. 14A, 14B and 14C illustrate another embodiment of the present invention. FIG. 14A is a side sectional view of device 100 and FIG. 14B is simply a side view of device 100 showing a plurality of strips 102 and 104. FIG. 14C illustrates device 100 in the radially deployed position. Device 100 is similar to devices 60 and 84. However, device 100 includes a plurality of strips or struts 102 which are formed, not by making longitudinal cuts or notches in the outer and inner tubes, but rather by adhering a plurality of discrete strips to the tubes.
In the embodiment shown in FIG. 14A, device 100 includes outer strips 102 and inner strips 104.
Strips 102 are illustrated by the solid lines and strips 104 are illustrated by the dashed lines in FIG. 14B. It can be seen that strips 102 are radially located outside of, or over, strips 104 relative to the longitudinal axis of the inner tube 62. Strips 102 are adhered at distal ends thereof to inner strips 104 which are offset angularly relative to strips 102. Distal ends of strips 102 and 104 are not only connected to one another, but they are also connected to the distal end of inner tube 62. The proximal ends of strips 102 and 104 are not only adhered to one another, but are also adhered to the distal end of outer tube 64. Therefore, when tubes 62 and 64 are moved longitudinally relative to one another to bring their distal ends closer to one another, device 100 deploys radially outwardly as shown in FIG. 14C.
It should also be noted that, instead of flat strips of material, device 100 can be formed of threads or wires or other filamentous or fibrous material adhered or connected in the same manner as strips 102 and 104. As with the embodiment shown in FIGS. 12~13B, the preferred material for forming strips 102 and 104 includes PVC, polyurethane, low density polyethylene or nitinol. In the embodiment in which the strips are formed of wires or other filamentous material, any suitable monofilament polymer, suture material, nitinol or stainless steel, or any other suitable material, can be used. It should also be noted that the proximal and distal ends of strips 102 and 104, or the threads or fibers forming the struts, can be anchored around the tubes 62 and 64 using any suitable adhesive or other suitable connection technique.
Further, strips 102 and 104, or the wires forming those struts, can have their distal ends angularly offset about the circumference of tubes 62 and 64 relative to their proximal ends, and adhered that way. Such a device is shown in the collapsed position in FIG. 14D. This results, upon deployment, in device 100 substantially assuming the configuration shown in FIG. 11D, where the tubes are rotated relative to one another upon deployment of device 60. However, this configuration is obtained without the requirement of rotating tubes 62 and 64 relative to one another.
Devices 60, 84 or 100 can also be covered with the same type of resilient material as layer 50 shown in FIG. 8. Further, devices 84 and 100 can also have thread, suture material, polymer strands, or other suitable material laced therethrough to form a mesh, such as that shown in FIG. 11C.
It should also be noted that, in accordance with the present invention, the expandable devices can be formed having different characteristics along their length. For example, FIG. 14E illustrates a device 110 similar to device 100, which is formed by adhering strips of material 112 to tubes 62 and 64. The distal ends of the strips 112 used to form device 110 are solid, while the proximal ends thereof are perforated.
As shown in FIG. 14F, device 110 thus has a proximal end which has significant additional perforations therein to allow blood flow therethrough in the parent vessel, yet T
has a distal end which has significantly fewer gaps or apertures therein to provide significantly more surface area for deflecting embolic material back into the sac of the aneurysm being treated.
However, the distal end of device 110 also has spaces between the strips or struts 112 to allow for the escape of blood from the aneurysm upon the insertion of embolic material therein.
This same type of affect can be accomplished using strips of material having different overall configurations. For example, FIGS. 14G and 14H
illustrate strips 114 and 116 having a configuration wherein the distal ends 122 and 123.have a greater surface area than the proximal ends 124 and 125. Thus, devices formed with strips 114 or 116 yield a similar advantage to device 110. The distal end of the device formed with strips 114 or 116 has gaps or apertures therein which are smaller than those at the proximal end. This allows substantial additional blood flow through the proximal end but provides a greater deflecting surface at the distal end. It should also be noted that any of the strips i12, 114 or 116 can be partially or entirely perforated to provide substantial additional blood flow throughout the entire longitudinal length of a device formed by such strips.
FIG. 14I illustrates yet another embodiment of the present invention. In FIG. 14I, wires or filamentous strands 132 are used to form a device 130.
The wires 132 have distal ends thereof attached to the inner tube 62 and proximal ends thereof attached to the outer tube 64. Wires 132 have different lengths.
However, when tube 62 is fully extended within tube 64, such that the distal ends of the two tubes are separated from one another, wires 132 lay substantially flat against the outside of tubes 62 and 64 to approximate the outer diameters thereof. When tube 62 is retracted within tube 64 such that the distal ends approach one another, wires 132 deploy radially outwardly as shown in FIG. 14I.
FIGS. 15A-16D illustrate devices in accordance with yet another aspect of the present invention. The devices illustrated in these figures are self-expanding devices for treating an aneurysm. In general, the shape of the device is restrained in the collapsed (generally tubular) form for insertion into the vasculature and is then released to deploy radially outwardly.
FIG. 15A illustrates device 140 in a deployed position. Device 140 includes inner tube 62 and outer tube 64. Polymer or metal wires or strands, or segments, 142 are set into a curved configuration and are attached at the proximal ends thereof about the outer circumference of inner tube 62. When unconstrained, wires 142 deploy radially outwardly as shown in FIG. 15A. Outer tube 64 has an inner diameter which approximates the outer diameter of tube 62. FIG.
15B shows that device 140 is retained in a collapsed, generally tubular shape, by outer tube 64 being advanced over wires 52 about inner tube 62. This urges wires 142 to straighten and lie generally flat against the outer surface of inner tube 62.
Strands 142 are preferably formed of any suitable material, such as nylon, teflon, polypropylene, nitinol, or stainless steel, and outer and inner tube 62 and 64 are also preferably formed of any suitable material, and can be formed of latex or polyurethane, or other suitable materials.
FIGS. 16A-16D illustrate another embodiment of a device 150 in accordance with the present invention.
FIG. 16A illustrates that device 150 is formed of an inner tube 62 and an outer tube 64. Outer tube 64 has a distal end thereof split to form a plurality of expandable members 152, which are attached by a hinge connection 154 to the proximal portion of outer tube 64.
Inner tube 62 has a radially enlarged hub 156 attached to the distal end thereof. Hub 156 has an annular, proximally extending ring 158. Ring 158 has a proximal end 160 which forms a retaining surface. Expandable members 152 of outer tube 64 each have a corresponding surface 162 at the distal end thereof. Surfaces 162 and surface 160 mate such that the distal ends of expandable members 152 are captured and retained in a radially collapsed position by surface 160 of hub 158.
In order to deploy device 150 into the radially expanded position, inner tube 62 (as shown in FIG. 168) is advanced longitudinally with respect to outer tube 64 in the direction generally indicated by arrow 164. This causes surface 160 of hub 156 to come out of engagement with surfaces 162 of expandable members 152. Members 152 are preferably heatset at an outward angle relative to inner tube 62. Therefore, when surface 160 comes out of engagement with surfaces 162, the distal ends of expandable members 152 expand radially outwardly as shown in FIG. 168.
FIG. 16C shows that once surfaces 160 and 162 are out of engagement with one another, and once members 152 have expanded radially outwardly as shown in FIG.
16B, inner tube 62 is withdrawn longitudinally relative to outer tube 64. This causes the annular ring terminating surface 160 to contact interior surfaces 166 of expandable members 152. By continuing to pull tube 62 in the direction indicated by arrow 165, hub 158 causes expandable members 152 to expand radially outwardly to the configuration shown in FIG. 16C. FIG.
16D is an end view of device 150 in the deployed position taken from the distal end of device 150.
In order to remove device 150 from the vasculature, inner tube 62 is again advanced distally with respect to outer tube 64 so that annular hub 156 is advanced to such a degree that surface 160 is out of engagement, and clear of, the interior surfaces 166 of expandable members 152. In this way, expandable members 152 can expand back radially inwardly with respect to tube 62 during removal of device 150 from the vasculature.
In the embodiment shown in FIGS. 16A-16D, inner shaft 62 is preferably formed of a suitable material, such as nylon, polyurethane or polyethylene.
Outer tube 64 is preferably formed of any suitable material, such as latex or polyurethane.
FIG. 17 illustrates one additional aspect in accordance with the present invention. FIG. 17 illustrates that substantially any of the devices disclosed herein can be fully or partially covered with a perforated elastomeric sheath. FIG. 17 illustrates device 10 ( shown in greater detail with respect to FIGS .
1-6) covered with elastomeric sheath 170. In the preferred embodiment, elastomeric sheath 170 creates additional surface area to deflect coils or other embolic material placed in the aneurysm being treated.
In the preferred embodiment, elastomeric sheath 170 can be formed of any suitable material, such as latex or polyurethane.
As discussed above, inner tube 62 and outer tube 64 can be formed of any suitable material.
However, inner tube 62, when used to deliver embolic material, preferably has an inner lumen with a r polytetrafluoroethylene (PTFE) inner liner to provide lubricity for wire and coil movement therethrough. The PTFE inner liner is preferably applied by dipping the tube or extruding the liner onto the tube.
In addition, in one embodiment, tubes 62 and 64 are formed of a round or flat stainless steel coil which includes a dipped or extruded polymer jacket or overcoat layer with the PTFE inner liner. The coil can also be formed of round or flat platinum or platinum/iridium, gold or other suitable material.
Also, fiber braiding can optionally be substituted for, or used in addition to, the coil wire layer. Also, the braid or the wire coils may be interspersed at various locations along the longitudinal length of the tubes. This provides variable stiffness and flexibility zones along the longitudinal length of the tubes.
In addition, any wire coils which are used in the device can have centerless ground areas so that the wires themselves have multiple diameter zones smaller than the original diameter. This tapered wire is then wound to form the coil to provide variable stiffness zones along the longitudinal length of the catheter.
This same type of grinding technique can be used with square or rectangular flat metal wire to provide the same benefits.
It has been found that metal coil layers add pushability, kink resistance, increased radiopacity, and increased burst strength to a composite tube material.
The use of flat wire as compared to round wire improves the pushability, kink resistance and burst strength of the catheter or tube, but may cause the tube to be less flexible. Suitable polymer jacket materials for the tubes include nylon, polyurethane and polyethylene.
Further, the tubes 62 and 64 can be formed of multiple-polymer shafts consisting of a stiffer polymer in the proximal region and a more flexible polymer in the distal region. Additionally, different combinations of metal or polymer coils or braids, and different combinations of outer and inner jackets and sheaths can be employed to obtain different flexibility segments throughout the length of the tubes, as desired.
Polyfusion extrusion techniques can also be used.
It should be noted that the devices described herein can be coated with a number of suitable coatings .
Among the coatings which could be applied are growth factors. A number of suitable growth factors include vascular endothelial growth factor (VEGF), platelet derived growth factor (PDGF), vascular permeability growth factor (VPF), basic fibroblast growth factor ( bFGF ) , and transforming growth factor beta ( TGF-beta ) .
Although the present invention has been described with reference to preferred embodiments, workers skilled in the art will recognize that changes may be made in form and detail without departing from the spirit and scope of the invention.
For example, when detachable coils are used to occlude an aneurysm which does not have a well defined neck region, the detachable coils can migrate out of the sac of the aneurysm and into the parent artery.
Further, it is, at times, difficult to gauge exactly how full the sac of the aneurysm is when detachable coils are being injected. Therefore, there is a risk of overfilling the aneurysm in which case the detachable coils also spill out into the parent artery.
Another disadvantage of detachable coils involves coil compaction over time. After filling the aneurysm, there remains space between the coils.
Continued hemodynamic forces from the circulation act to compact the coil mass resulting in a cavity in the aneurysm neck. Thus, the aneurysm can recanalize.
Embolic agent migration is also a problem.
For instance, where a liquid polymer is injected into the sac of the aneurysm, it can migrate out of the sac of the aneurysm due to the hemodynamics of the system.
This can also lead to irreversible occlusion of the parent vessel.
Techniques have been attempted in order to deal with the disadvantages associated with embolic material migration to the parent vessel. Some such techniques, commonly referred to as flow arrest techniques, typically involve temporarily occluding the parent vessel proximal of the aneurysm, so that no blood flow occurs through the parent vessel, until a thrombotic mass has formed in the sac of the aneurysm which helps reduce the tendency of the embolic material to migrate out of the aneurysm sac. However, thrombotic mass can dissolve through normal lysis of blood. Also, in certain cases, it is highly undesirable to occlude the parent vessel even temporarily. Therefore, this technique is, at times, not available as a treatment option. In addition, even occluding the parent vessel may not prevent all embolic material migration into the parent vessel.
Another endovascular technique for treating aneurysms involves inserting a detachable balloon into the sac of the aneurysm using a microcatheter. The detachable balloon is then inflated using saline and/or contrast fluid. The balloon is then detached from the microcatheter and left within the sac of the aneurysm in an attempt to fill the sac of the aneurysm. However, detachable balloons also suffer disadvantages. For example, detachable balloons, when inflated, typically will not conform to the interior configuration of the aneurysm sac. Instead, the detachable balloon requires the aneurysm sac to conform to the exterior surface of the detachable balloon. Thus, there is an increased risk that the detachable balloon will rupture the sac of the aneurysm. Further, detachable balloons can rupture and migrate out of the aneurysm.
SUMMARY OF THE INVENTION
A system for treating an aneurysm in a vessel includes a delivery device having a delivery portion suitable for delivery of embolic material. The delivery device is placed in a neck of the aneurysm and an expandable member is placed proximate the neck. The expandable member is expanded to overlie substantially the entire neck. Embolic material is delivered to the aneurysm with a delivery device. The expandable member is held over the neck to inhibit movement of the embolic material out of the aneurysm. Blood is allowed to flow out of the aneurysm, past the neck of the aneurysm, and through the vessel while the expandable member is held over the neck of the aneurysm.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a side view of a portion of a neck occlusion device in accordance with the present invention.
FIGS. 2A and 2B are side and end views, respectively, of the neck occlusion device shown in FIG.
1 in an expanded position.
FIG. 2C is a side view of the device shown in FIG. 2A in an expanded position.
FIGS. 3-7 illustrate the deployment of the neck occlusion device shown in FIGS. 1, 2A.and 2B during treatment of an aneurysm.
FIG. 8 illustrates a second embodiment of the neck occlusion device in accordance with the present invention.
FIG. 9 illustrates yet another embodiment of a neck occlusion device in accordance with the present invention.
FIGS. 10-11D illustrate two additional embodiments of a neck occlusion device in accordance with the present invention.
FIGS. 12-13B illustrate yet another embodiment of a neck occlusion device in accordance with the present invention.
FIGS. 14A-14I illustrate additional embodiments of neck occlusion devices in accordance with the present invention.
FIGS. 15A and 15B illustrate yet another embodiment of a neck occlusion device in accordance with the present invention.
y FIGS. 16A-16D illustrate yet another embodiment of a neck occlusion device in accordance with the present invention.
FIG. 17 illustrates yet another embodiment of a neck occlusion device in accordance with the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
FIG. 1 is a side view of a portion of a neck occlusion device 10 in accordance with the present invention. Device 10 includes outer tubular member 12, inner tubular member 14, and mesh portion 16. Tubes 12 and 14 are preferably coaxially arranged relative to one another, and are longitudinally siidable relative to one another. Mesh portion 16 is attached, at its distal end 18, to a distal portion 20 of inner tubular member 14.
Mesh 16 is attached at its proximal end 22 to a distal portion 24 of outer tubular member 12.
Mesh portion 16 is preferably formed of braided or woven filaments or fibers which are relatively flexible. Therefore, when tubes 12 and 14 are moved relative to one another, mesh portion I6 is deployed radially outwardly relative to the tubes 12 and 14. This is illustrated by FIG. 2A.
FIG. 2A shows similar items to those shown in FIG. 1, and they are similarly numbered. However, in FIG. 2A, inner tube 14 has been retracted in the direction indicated by arrow 26 relative to outer tube 12. This causes the distal end 20 of inner tube 14 to approach the distal end 24 of outer tube 12. This also, consequently, causes the central portion of mesh 16 to deploy radially outwardly relative to the two tubular members 12 and 14 to form a substantially disk-shaped (or dish-shaped) configuration. It should also be noted that a pull wire can be alternatively implemented in place of tube 14. FIG. 2B is an end view of device 10 in the deployed position shown in FIG. 2A. However, FIG. 2B also shows that mesh portion 16 is relatively porous. This has advantages discussed with respect to FIGS. 3-7.
FIG. 2C illustrates device 10 with inner tube 14 even further retracted in the direction indicated by arrow 26 relative to outer tube 12. This causes mesh portion 16 to assume a general dish or concave shape.
The present invention contemplates deployment of device 10 in this shape as well as in the other deployed shapes discussed herein.
FIGS. 3-7 illustrate the deployment of device 10 in treating an aneurysm. FIG. 3 shows a blood vessel 28 having a main lumen 30 which bifurcates into two branch lumens 32 and 34 which communicate with lumen 30.
At a region proximate the transition from lumen 30 to branch lumens 32 and 34, aneurysm 36 has formed in the vessel wall. Aneurysm 36 has an interior sac portion 38 and a neck region 40. In order to treat aneurysm 36, FIG. 3 illustrates that device 10 is advanced through the vasculature, through lumen 30, to a region proximate the neck 40 of aneurysm 36. In the preferred embodiment, inner tube 14 has a distal extension portion 42 which extends beyond the distal end of mesh 16.
FIG. 4 illustrates that, once device 10 is placed in the region of neck 40 in the vasculature, mesh portion 16 is moved to its deployed (or radially expanded) position. This is done as described with respect to FIG. 2A, by moving tubes 14 and 16 longitudinally relative to one another to cause mesh portion 16 to deploy radially outwardly. FIG. 4 shows that, in the preferred embodiment, mesh portion 16, when deployed, substantially overlies the entire neck portion 40 of aneurysm 36.
FIG. 5 is similar to FIGS. 3 and 4, and similar items are similarly numbered. However, FIG. 5 illustrates that, once mesh portion 16 is deployed over the neck region 40 of aneurysm 36, embolic material 44 is placed in the interior sac 38 of aneurysm 36. In one preferred embodiment, the embolic material includes any suitable embolic material, such as coils, detachable coils, liquid embolic agents, or other suitable embolic material. The apertures in mesh portion 36 allow blood to migrate out of the sac portion 38 of aneurysm 36 upon being displaced in aneurysm 36 by embolic materials introduced into aneurysm 36. Also, device 10, when deployed, preferably has a low enough profile that it does not block any of lumens 30, 32 or 34. The porous nature of mesh portion 16 also allows blood to flow through vessels 30, 32 and 34 through mesh portion 16.
In the embodiment shown in FIG. 4, because aneurysm 36 is located in a region where lumen 30 bifurcates into lumens 32 and 34, mesh portion 16 may typically have a larger outer diameter than the inner diameter of lumen 30. In other words, mesh portion 16, when deployed, expands radially outwardly and extends down a portion of lumens 32 and 34. In being so formed, the outer diameter of mesh portion 16, in the deployed position, can be larger than the inner diameter of lumen 30. However, since mesh portion 16 collapses to the position shown in FIG. 3, it can be advanced and removed through vessel 30, yet still be deployed in a large enough configuration to substantially block the entire neck region 40 of aneurysm 36.
FIG. 6 shows another preferred way of placing embolic material 44 in the sac 38 of aneurysm 36. FIG.
_g_ 6 illustrates that a microcatheter 46 has been advanced through lumen 30 and through the apertures in mesh portion 16. Of course, microcatheter 46 can also be placed in the sac 38 of aneurysm 36 prior to the deployment of mesh portion 16. In that case, when mesh portion 16 is deployed, it simply deflects a portion of microcatheter 46 out toward the wall of the neck region 40 of aneurysm 36, but does not exert enough pressure on microcatheter 46 to pinch off or close the lumen IO thereof. Therefore, embolic materials can still be advanced therethrough. It should also be noted that, in the embodiment shown in FIG. 6, where a separate microcatheter 46 is used to introduce embolic material into the sac 38 of aneurysm 36, the central tube 14 of device 10 need not be hollow, but can instead be a core wire device, or another suitable salid elongate member.
FIG. 7 illustrates device 10 as deployed in treating an aneurysm 36'. Aneurysm 36' is similar to aneurysm 36, except that it is offset from the region where lumen 30 bifurcates into lumens 32 and 34.
However, it is only offset by a small distance.
Therefore, device 10 can be maneuvered to have its distal tip within the sac 38' of aneurysm 36' . Also, it is offset by a distance which is small enough that longitudinal pressure applied to device 10 through tubes 12 and 14 causes deployed mesh portion 16 to abut and substantially overlie the neck region 40' of aneurysm 36'. It should be noted that the longitudinal force applied can cause mesh portion 16 to direct a force against the neck region 40 either directly, or by the tubes 12 and 14 backing up against lumen wall 48 which is substantially directly across from the opening in neck region 40' of aneurysm 36'. This causes tubes 12 r _g_ and 14 to deflect toward the neck region 40' of aneurysm 36' and exert a force thereagainst.
FIG. 8 illustrates device 10 formed in accordance with another preferred embodiment of the present invention. In FIG. 8, a resilient material layer 50 is disposed over the outer radial surface of mesh portion 16. Resilient layer 50 is preferably a stretchy, woven material which has a number of apertures or perforations formed therein. However, the perforations are not as large as those which are formed in mesh portion 16, itself. Layer 50 thus provides the added advantage that mesh portion 16, when deployed, has a greater surface area facing neck region 40 of aneurysm 36. This enhances the ability of device 10 to deflect embolic material introduced into the sac 38 of aneurysm 36 back into aneurysm 36, and to keep it from migrating through neck portion 40 into the lumens 30, 32 or 34 of vessel 28. However, the perforations still allow blood from the sac 38 of aneurysm 36 to flow out into vessels 30, 32 or 34, upon being displaced by embolic materials introduced into the sac 38 of aneurysm 36.
FIG. 9 illustrates another method of using device 10 in accordance with the present invention. In the embodiment shown in FIG. 9, device 10 has substantially the same elements as that shown in FIG. 1.
However, device 10 is configured to form a longer, wider tubular configuration when deployed radially outwardly, than that shown in FIGS. 2A, 4, 5 and 7. Thus, device 10 is more suitable for use in treating aneurysms, such as aneurysm 52, which is formed in a vessel wall that is not near a bifurcation in the vasculature. In the preferred embodiment shown in FIG. 9, microcatheter 54 is ffirst introduced through neck region 56 of aneurysm 52 and into the sac of aneurysm 52. Then, device TO is placed proximate neck region 56 and deployed to the expanded position shown in FIG. 9. Embolic material is then introduced through microcatheter 54 into aneurysm 52 and device 10 is in place to deflect back into aneurysm 52~substantially all embolic material which would otherwise tend to migrate through neck 56 into the parent vessel.
Alternatively, device 10 can first be introduced and placed proximate neck portion 56 of aneurysm 52 and maintained in the collapsed position.
Microcatheter 54 is then introduced into aneurysm 52 and device 10 is then deployed outwardly. Also, as with the embodiment described in FIG. 6, mesh portion 16 of device 10 can be formed of a material having wide enough apertures that microcatheter 54 can be introduced therethrough. In that embodiment, it does not matter whether device 10 is first deployed, and then microcatheter 54 is inserted in aneurysm 52, or whether microcatheter 54 is first inserted in aneurysm 52 and then device 10 is deployed.
Of course, as with respect to device 10 shown in FIG. 8, the embodiment of device 10 shown in FIG. 9 can also be covered by a resilient material layer 50.
Substantially the same advantages are achieved by such a covering layer as those achieved in the embodiment shown in FIG. 6.
It should further be noted that device 10 shown in FIG. 9 preferably has substantial perforations or apertures therein, when deployed. This serves two purposes. First, it allows blood to flow out of aneurysm 52 as it is displaced by an embolic material.
Also, it allows blood to continue flowing through the parent vessel, and thus does not tend to cause occlusion of the parent vessel when deployed in the parent vessel.
In one preferred embodiment, mesh portion 16 is formed of woven strands of polymer material, such as nylon, polypropylene or polyester. The polymer strands can be filled with a radiopaque material which allows the physician treating the aneurysm to fluoroscopically visualize the location of mesh portion 16 within the vasculature. Radiopaque filler materials preferably include bismuth trioxide, tungsten, titanium dioxide or barium sulfate, or radiopaque dyes such as iodine. It should also be noted that mesh portion 16 can be formed by strands of radiopaque material. The radiopaque strands allow the physician to fluoroscopically visualize the location of mesh portion 16, without the use of filled polymer materials. Such radiopaque strands may preferably be formed of gold, platinum, or a platinum/iridium alloy.
In the embodiment in which mesh portian 16 is formed of radiopaque metal strands, it is preferred to cover the strands with a polymer coating or extrusion.
The coating or extrusion over the radiopaque wire strands provides fluoroscopic visualization of mesh portion 16, but also increases the resistance of the strands to bending fatigue and may also increase lubricity of the strands. The polymer coating or extrusion, in one preferred embodiment, is coated or treated with an agent which tends to resist clotting, such as heparin. Such clot resistant coatings are generally known. The polymer coating or extrusion can be any suitable extrudable polymer, or any polymer that can be applied in a thin coating, such as teflon or polyurethane.
In yet another embodiment, the strands of mesh portion 16 are formed using both metal and polymer braided strands. Combining the metal strands with the polymer strands into a braid changes the flexibility characteristics of mesh portion 16. The force required to deploy or collapse such a mesh portion is significantly reduced over that required for a mesh portion that includes only metal mesh strands. However, the radiopaque characteristics of the mesh for fluoroscopic visualization are retained. Metal strands forming such a device preferably include stainless steel, gold, platinum, platinum/iridium or nitinol.
Polymer strands forming the device can preferably include nylon, polypropylene, polyester or teflon.
Further, polymer strands of mesh portion 16 can be chemically modified to make them radiopaque, such as by using gold deposition onto the polymer strands, or by using ion beam plasma deposition of suitable metal ions onto the polymer strands.
Mesh portion 16 can also be formed with filaments or strands of varying diameter and/or varying flexibility. By varying the size or flexibility of the polymer strands, the flexibility characteristics of mesh portion 16, upon deployment, can also be varied. By varying the flexibility characteristics, both the deployed and collapsed configuration of mesh portion 16 can be varied or changed to substantially any desired shape. As with previous embodiments, preferred materials for the strands include nylon, polypropylene, polyester and teflon.
Not only can mesh portion 16 be formed of both polymer strands or filaments and metal strands or filaments, but it can be formed using filaments of different polymer materials. For example, different polymer materials having different flexibility characteristics can be used in forming mesh portion 16.
This alters the flexibility characteristics to change the resultant configuration of mesh portion 16 in both the deployed and the collapsed positions.
FIGS. 10-14I illustrate the present invention formed in the shape of a collapsing tube. FIG. 10 illustrates a portion. of device 60 in accordance with the present invention. Device 60 includes inner tube 62 and outer tube 64. Tubes 62 and 64 are preferably coaxially arranged relative to one another. Collapsing tube portion 66 is coupled to inner tube 62 and outer tube 64. Collapsing tube portion 66 can be a separate member coupled to tubes 62 and 64, or it can be integrally formed with one or both of tubes 62 and 64.
Collapsing tube portion 66 has a distal end 68 thereof which is attached to distal portion 70 of inner tube 62.
Collapsing tube portion 66 also has a proximal end 72 which is attached to a distal region 74 of outer tube 64. In the embodiment shown in FIG. 10, collapsing tube 60 has a plurality of notches 76 formed therein. By forming notches 76, a plurality of struts 78 are defined therebetween and extend generally from the proximal end 72 of collapsing tube portion 66 to the distal end 68 thereof.
FIG. 11A illustrates device 60 in the deployed position. Tubes 62 and 64 are preferably longitudinally moveable relative to one another. Therefore, in order to deploy device 60, inner tube 62 is pulled in the direction generally indicated by arrow 80 relative to outer tube 64. This causes the distal end 74 of outer tube 64 to advance toward the distal end 70 of inner tube 62. This movement causes the struts 78 defined by notches 76 to bow or deploy generally radially outwardly, away from tubes 62 and 64 to the configuration shown in FIG. 11A.
FIG. 11B illustrates an end view of device 60.
FIG. 11B illustrates that struts 78 deploy radially outwardly in a flower pedal-like arrangement. Thus, notches 76 allow for the movement of blood out from within an aneurysm being treated by device 60 as it is replaced by embolic material, but struts 78 form deflecting surfaces to inhibit migration of the embolic material out of the aneurysm.
Thus, device 60 can be used in a similar fashion to device 10 shown in FIGS. 1-10 and discussed in greater detail above. However, device 60 provides struts 78 which typically have a larger constant surface area than the filaments forming mesh portion 16 of device 10. Thus, blood clotting may be less likely to occur around device 60. Also, the profile of device 60 in the collapsed position shown in FIG. 10 is typically slightly larger than the profile of mesh portion ,16 when in the collapsed position shown in FIG. 1. However, device 60 is also typically less dense than mesh portion 16 when in the collapsed position and thus allows for easier blood flow around it during advancement or retraction in the vasculature.
FIG. 11C illustrates device 60 with a modification. Thread or suture material 82 is laced or threaded through struts ?8 and across the spaces formed by notches 76 to create a mesh in notches 76. Suture material 82 thus provides additional surface area when device 60 is deployed. This additional surface area serves to enhance the ability of device 60 to deflect coils or other embolic material to keep it from migrating out of the aneurysm being treated. Any suitable type of polymer, thread, suture material, or other suitable polymer strands can be used to form thread 82.
FIG. 11D shows an end view of device 60 where outer tube 64 has been rotated with respect to inner tube 62. This causes the proximal ends of struts 78 to be rotated relative to the distal ends of struts 78 about the periphery~of tubes 62 and 64. This type of rotation typically reduces the overall outer diameter of device 60 in the deployed position . It also changes the spacing between struts 78. In other words, the proximal ends of struts 78 are rotated to fill in a portion of the notches 76, when viewed from the distal end of device 60, to provide additional surface area for deflection of embolic material. Also, since the rotation of tubes 62 and 64 relative to one another changes the overall outer diameter of device 60 in the deployed position, this feature can be used in order to accommodate aneurysms having various neck sizes.
FIGS. 12-13B illustrate another embodiment of a sliced tube device in accordance with the present invention. FIG. 12 shows device 84 in a collapsed position. Device 84 is similar to device 60 in that a collapsing tube portion 86 has a plurality of struts 88 formed therein. However, instead of struts 88 being formed between notches or physical voids in tube portion 86, tube portion 86 simply includes a plurality of longitudinal slices 90 which define struts 88.
In addition, an inner collapsible tube portion 92 is also provided in device 84. Inner collapsible tube portion 92 is similar to outer collapsible tube portion 86, and is preferably coaxially arranged relative to outer tube portion 86. The outer tube 86 has an inner diameter which is slightly larger than the outer diameter of inner tube 92. Inner tube portion 92 also has a plurality of generally longitudinal cuts 94 formed therein to define inner struts 96. Outer collapsible tube portion 86 and inner collapsible tube portion 92 are preferably coupled to one another at their distal ends and to the distal end of inner tube 62. The proximal ends of inner and outer collapsible tube portion 86 and 92 are coupled to a distal region 74 of tube 64 and are slidable over inner tube 62.
FIG. 13A shows device 84 in the deployed position. Inner tube 62 is movable longitudinally within the interior of inner collapsible tube portion 92. Therefore, withdrawal of tube 62 relative to tube 64 causes both the distal ends of inner and outer collapsible tube portions 84 and 92 to advance toward their respective proximal ends. This causes the struts 88 and 96 to deploy radially outwardly as shown in FIG.
13A.
Also, in the preferred embodiment, struts 88 are angularly offset about the outer periphery of device 84 from inner struts 96. Therefore, when device 84 is deployed, the inner struts 96 deploy outwardly within the gaps left by the deployed outer struts 88. This is better illustrated in FIG. 13B which is an end view taken from the distal end of device 84 shown in FIG.
13A.
Devices 60 and 84 are preferably formed of any suitable material, such as PVC, polyurethane, low density polyethylene or nitinol. The design of the struts in devices 60 and 84 provide a relatively large and consistent surface area, with also relatively large amount of space between the deployed struts, when in the deployed position.
FIGS. 14A, 14B and 14C illustrate another embodiment of the present invention. FIG. 14A is a side sectional view of device 100 and FIG. 14B is simply a side view of device 100 showing a plurality of strips 102 and 104. FIG. 14C illustrates device 100 in the radially deployed position. Device 100 is similar to devices 60 and 84. However, device 100 includes a plurality of strips or struts 102 which are formed, not by making longitudinal cuts or notches in the outer and inner tubes, but rather by adhering a plurality of discrete strips to the tubes.
In the embodiment shown in FIG. 14A, device 100 includes outer strips 102 and inner strips 104.
Strips 102 are illustrated by the solid lines and strips 104 are illustrated by the dashed lines in FIG. 14B. It can be seen that strips 102 are radially located outside of, or over, strips 104 relative to the longitudinal axis of the inner tube 62. Strips 102 are adhered at distal ends thereof to inner strips 104 which are offset angularly relative to strips 102. Distal ends of strips 102 and 104 are not only connected to one another, but they are also connected to the distal end of inner tube 62. The proximal ends of strips 102 and 104 are not only adhered to one another, but are also adhered to the distal end of outer tube 64. Therefore, when tubes 62 and 64 are moved longitudinally relative to one another to bring their distal ends closer to one another, device 100 deploys radially outwardly as shown in FIG. 14C.
It should also be noted that, instead of flat strips of material, device 100 can be formed of threads or wires or other filamentous or fibrous material adhered or connected in the same manner as strips 102 and 104. As with the embodiment shown in FIGS. 12~13B, the preferred material for forming strips 102 and 104 includes PVC, polyurethane, low density polyethylene or nitinol. In the embodiment in which the strips are formed of wires or other filamentous material, any suitable monofilament polymer, suture material, nitinol or stainless steel, or any other suitable material, can be used. It should also be noted that the proximal and distal ends of strips 102 and 104, or the threads or fibers forming the struts, can be anchored around the tubes 62 and 64 using any suitable adhesive or other suitable connection technique.
Further, strips 102 and 104, or the wires forming those struts, can have their distal ends angularly offset about the circumference of tubes 62 and 64 relative to their proximal ends, and adhered that way. Such a device is shown in the collapsed position in FIG. 14D. This results, upon deployment, in device 100 substantially assuming the configuration shown in FIG. 11D, where the tubes are rotated relative to one another upon deployment of device 60. However, this configuration is obtained without the requirement of rotating tubes 62 and 64 relative to one another.
Devices 60, 84 or 100 can also be covered with the same type of resilient material as layer 50 shown in FIG. 8. Further, devices 84 and 100 can also have thread, suture material, polymer strands, or other suitable material laced therethrough to form a mesh, such as that shown in FIG. 11C.
It should also be noted that, in accordance with the present invention, the expandable devices can be formed having different characteristics along their length. For example, FIG. 14E illustrates a device 110 similar to device 100, which is formed by adhering strips of material 112 to tubes 62 and 64. The distal ends of the strips 112 used to form device 110 are solid, while the proximal ends thereof are perforated.
As shown in FIG. 14F, device 110 thus has a proximal end which has significant additional perforations therein to allow blood flow therethrough in the parent vessel, yet T
has a distal end which has significantly fewer gaps or apertures therein to provide significantly more surface area for deflecting embolic material back into the sac of the aneurysm being treated.
However, the distal end of device 110 also has spaces between the strips or struts 112 to allow for the escape of blood from the aneurysm upon the insertion of embolic material therein.
This same type of affect can be accomplished using strips of material having different overall configurations. For example, FIGS. 14G and 14H
illustrate strips 114 and 116 having a configuration wherein the distal ends 122 and 123.have a greater surface area than the proximal ends 124 and 125. Thus, devices formed with strips 114 or 116 yield a similar advantage to device 110. The distal end of the device formed with strips 114 or 116 has gaps or apertures therein which are smaller than those at the proximal end. This allows substantial additional blood flow through the proximal end but provides a greater deflecting surface at the distal end. It should also be noted that any of the strips i12, 114 or 116 can be partially or entirely perforated to provide substantial additional blood flow throughout the entire longitudinal length of a device formed by such strips.
FIG. 14I illustrates yet another embodiment of the present invention. In FIG. 14I, wires or filamentous strands 132 are used to form a device 130.
The wires 132 have distal ends thereof attached to the inner tube 62 and proximal ends thereof attached to the outer tube 64. Wires 132 have different lengths.
However, when tube 62 is fully extended within tube 64, such that the distal ends of the two tubes are separated from one another, wires 132 lay substantially flat against the outside of tubes 62 and 64 to approximate the outer diameters thereof. When tube 62 is retracted within tube 64 such that the distal ends approach one another, wires 132 deploy radially outwardly as shown in FIG. 14I.
FIGS. 15A-16D illustrate devices in accordance with yet another aspect of the present invention. The devices illustrated in these figures are self-expanding devices for treating an aneurysm. In general, the shape of the device is restrained in the collapsed (generally tubular) form for insertion into the vasculature and is then released to deploy radially outwardly.
FIG. 15A illustrates device 140 in a deployed position. Device 140 includes inner tube 62 and outer tube 64. Polymer or metal wires or strands, or segments, 142 are set into a curved configuration and are attached at the proximal ends thereof about the outer circumference of inner tube 62. When unconstrained, wires 142 deploy radially outwardly as shown in FIG. 15A. Outer tube 64 has an inner diameter which approximates the outer diameter of tube 62. FIG.
15B shows that device 140 is retained in a collapsed, generally tubular shape, by outer tube 64 being advanced over wires 52 about inner tube 62. This urges wires 142 to straighten and lie generally flat against the outer surface of inner tube 62.
Strands 142 are preferably formed of any suitable material, such as nylon, teflon, polypropylene, nitinol, or stainless steel, and outer and inner tube 62 and 64 are also preferably formed of any suitable material, and can be formed of latex or polyurethane, or other suitable materials.
FIGS. 16A-16D illustrate another embodiment of a device 150 in accordance with the present invention.
FIG. 16A illustrates that device 150 is formed of an inner tube 62 and an outer tube 64. Outer tube 64 has a distal end thereof split to form a plurality of expandable members 152, which are attached by a hinge connection 154 to the proximal portion of outer tube 64.
Inner tube 62 has a radially enlarged hub 156 attached to the distal end thereof. Hub 156 has an annular, proximally extending ring 158. Ring 158 has a proximal end 160 which forms a retaining surface. Expandable members 152 of outer tube 64 each have a corresponding surface 162 at the distal end thereof. Surfaces 162 and surface 160 mate such that the distal ends of expandable members 152 are captured and retained in a radially collapsed position by surface 160 of hub 158.
In order to deploy device 150 into the radially expanded position, inner tube 62 (as shown in FIG. 168) is advanced longitudinally with respect to outer tube 64 in the direction generally indicated by arrow 164. This causes surface 160 of hub 156 to come out of engagement with surfaces 162 of expandable members 152. Members 152 are preferably heatset at an outward angle relative to inner tube 62. Therefore, when surface 160 comes out of engagement with surfaces 162, the distal ends of expandable members 152 expand radially outwardly as shown in FIG. 168.
FIG. 16C shows that once surfaces 160 and 162 are out of engagement with one another, and once members 152 have expanded radially outwardly as shown in FIG.
16B, inner tube 62 is withdrawn longitudinally relative to outer tube 64. This causes the annular ring terminating surface 160 to contact interior surfaces 166 of expandable members 152. By continuing to pull tube 62 in the direction indicated by arrow 165, hub 158 causes expandable members 152 to expand radially outwardly to the configuration shown in FIG. 16C. FIG.
16D is an end view of device 150 in the deployed position taken from the distal end of device 150.
In order to remove device 150 from the vasculature, inner tube 62 is again advanced distally with respect to outer tube 64 so that annular hub 156 is advanced to such a degree that surface 160 is out of engagement, and clear of, the interior surfaces 166 of expandable members 152. In this way, expandable members 152 can expand back radially inwardly with respect to tube 62 during removal of device 150 from the vasculature.
In the embodiment shown in FIGS. 16A-16D, inner shaft 62 is preferably formed of a suitable material, such as nylon, polyurethane or polyethylene.
Outer tube 64 is preferably formed of any suitable material, such as latex or polyurethane.
FIG. 17 illustrates one additional aspect in accordance with the present invention. FIG. 17 illustrates that substantially any of the devices disclosed herein can be fully or partially covered with a perforated elastomeric sheath. FIG. 17 illustrates device 10 ( shown in greater detail with respect to FIGS .
1-6) covered with elastomeric sheath 170. In the preferred embodiment, elastomeric sheath 170 creates additional surface area to deflect coils or other embolic material placed in the aneurysm being treated.
In the preferred embodiment, elastomeric sheath 170 can be formed of any suitable material, such as latex or polyurethane.
As discussed above, inner tube 62 and outer tube 64 can be formed of any suitable material.
However, inner tube 62, when used to deliver embolic material, preferably has an inner lumen with a r polytetrafluoroethylene (PTFE) inner liner to provide lubricity for wire and coil movement therethrough. The PTFE inner liner is preferably applied by dipping the tube or extruding the liner onto the tube.
In addition, in one embodiment, tubes 62 and 64 are formed of a round or flat stainless steel coil which includes a dipped or extruded polymer jacket or overcoat layer with the PTFE inner liner. The coil can also be formed of round or flat platinum or platinum/iridium, gold or other suitable material.
Also, fiber braiding can optionally be substituted for, or used in addition to, the coil wire layer. Also, the braid or the wire coils may be interspersed at various locations along the longitudinal length of the tubes. This provides variable stiffness and flexibility zones along the longitudinal length of the tubes.
In addition, any wire coils which are used in the device can have centerless ground areas so that the wires themselves have multiple diameter zones smaller than the original diameter. This tapered wire is then wound to form the coil to provide variable stiffness zones along the longitudinal length of the catheter.
This same type of grinding technique can be used with square or rectangular flat metal wire to provide the same benefits.
It has been found that metal coil layers add pushability, kink resistance, increased radiopacity, and increased burst strength to a composite tube material.
The use of flat wire as compared to round wire improves the pushability, kink resistance and burst strength of the catheter or tube, but may cause the tube to be less flexible. Suitable polymer jacket materials for the tubes include nylon, polyurethane and polyethylene.
Further, the tubes 62 and 64 can be formed of multiple-polymer shafts consisting of a stiffer polymer in the proximal region and a more flexible polymer in the distal region. Additionally, different combinations of metal or polymer coils or braids, and different combinations of outer and inner jackets and sheaths can be employed to obtain different flexibility segments throughout the length of the tubes, as desired.
Polyfusion extrusion techniques can also be used.
It should be noted that the devices described herein can be coated with a number of suitable coatings .
Among the coatings which could be applied are growth factors. A number of suitable growth factors include vascular endothelial growth factor (VEGF), platelet derived growth factor (PDGF), vascular permeability growth factor (VPF), basic fibroblast growth factor ( bFGF ) , and transforming growth factor beta ( TGF-beta ) .
Although the present invention has been described with reference to preferred embodiments, workers skilled in the art will recognize that changes may be made in form and detail without departing from the spirit and scope of the invention.
Claims (39)
1. A system for treating an aneurysm in a vessel, the aneurysm having a neck communicating with the vessel, the system comprising:
a first elongate member;
a second elongate member longitudinally movable relative to the first elongate member;
an expandable member radially expandable and contractible in response to longitudinal movement of the first and second elongate members relative to one another; and wherein the expandable member is configured, when overlying the neck of the aneurysm, to allow delivery of embolic material to the aneurysm, to inhibit the embolic material from moving out of the aneurysm into the vessel, and to allow blood to flow through the vessel and to flow out of the aneurysm during delivery of the embolic material into the aneurysm.
a first elongate member;
a second elongate member longitudinally movable relative to the first elongate member;
an expandable member radially expandable and contractible in response to longitudinal movement of the first and second elongate members relative to one another; and wherein the expandable member is configured, when overlying the neck of the aneurysm, to allow delivery of embolic material to the aneurysm, to inhibit the embolic material from moving out of the aneurysm into the vessel, and to allow blood to flow through the vessel and to flow out of the aneurysm during delivery of the embolic material into the aneurysm.
2. The system of claim 1 wherein the first and second elongate members are arranged coaxially with one another.
3. The system of claim 2 wherein the expandable member comprises:
a first collapsible tube generally coaxially arranged with the first and second elongate members, having a first end connected to the first elongate member and a second end connected to the second elongate member and being configured such that longitudinal movement of the first and second elongate members relative to one another causes variation in a distance between the first and second ends of the first collapsible tube.
a first collapsible tube generally coaxially arranged with the first and second elongate members, having a first end connected to the first elongate member and a second end connected to the second elongate member and being configured such that longitudinal movement of the first and second elongate members relative to one another causes variation in a distance between the first and second ends of the first collapsible tube.
4. The system of claim 3 wherein the first collapsible tube comprises:
a first plurality of struts having distal ends coupled to one of the first and second elongate members and proximal ends coupled to another of the first and second elongate members, the first struts being configured such that movement of the proximal and distal ends thereof toward one another causes the first struts to bow radially outwardly relative to the first and second elongate members.
a first plurality of struts having distal ends coupled to one of the first and second elongate members and proximal ends coupled to another of the first and second elongate members, the first struts being configured such that movement of the proximal and distal ends thereof toward one another causes the first struts to bow radially outwardly relative to the first and second elongate members.
5. The system of claim 4 wherein the first and second elongate members are rotatable relative to one another and configured such that an outer diameter defined by the first struts, when bowed outwardly, is adjustable based on rotation of the first and second elongate members relative to one another.
6. The system of claim 4 wherein the first struts are configured such that the distal ends of the first struts are angularly offset from the proximal ends of the first struts about an outer periphery of the first and second elongate members.
7. The system of claim 4 wherein the expandable member comprises:
a second collapsible tube generally coaxially arranged with the first collapsible tube having a first end operably connected to the first elongate member and a second end operably connected to the second elongate member and being configured such that longitudinal movement of the first and second elongate members relative to one another causes variation in a distance between the first and second ends of the second collapsible tube.
a second collapsible tube generally coaxially arranged with the first collapsible tube having a first end operably connected to the first elongate member and a second end operably connected to the second elongate member and being configured such that longitudinal movement of the first and second elongate members relative to one another causes variation in a distance between the first and second ends of the second collapsible tube.
8. The system of claim 7 wherein the second collapsible tube comprises:
a second plurality of struts having distal ends coupled to one of the first and second elongate members and proximal ends coupled to another of the first and second elongate members, the second struts being configured such that movement of the proximal and distal ends thereof toward one another causes the second struts to bow radially outwardly relative to the first and second elongate members.
a second plurality of struts having distal ends coupled to one of the first and second elongate members and proximal ends coupled to another of the first and second elongate members, the second struts being configured such that movement of the proximal and distal ends thereof toward one another causes the second struts to bow radially outwardly relative to the first and second elongate members.
9. The system of claim 8 wherein the second struts are angularly offset from the first struts about the periphery of the first and second elongate members.
10. The system of claim 4 and further comprising:
a thread-like member connected to the first struts and configured to reside in spaces between the first struts when the first struts are expanded.
a thread-like member connected to the first struts and configured to reside in spaces between the first struts when the first struts are expanded.
11. The system of claim 4 wherein the first struts have distal regions with a larger surface area than proximal regions thereof.
12. The system of claim 11 wherein the proximal regions of the first struts are perforated.
13. The system of claim 4 and further comprising:
a perforated covering disposed about the first struts and configured to be carried radially outwardly with the first struts.
a perforated covering disposed about the first struts and configured to be carried radially outwardly with the first struts.
14. The system of claim 1 wherein the expandable member comprises:
an expandable mesh disposed about an outer periphery of the first and second elongate members.
an expandable mesh disposed about an outer periphery of the first and second elongate members.
15. The system of claim 14 wherein the mesh has at least one aperture therein sized to receive a delivery device therethrough for delivering embolic material.
16. The system of claim 1 wherein the expandable member comprises:
a self expanding device biased to be retained in a collapsed position in response to the first and second elongate members being maintained in a first longitudinal position relative to one another.
a self expanding device biased to be retained in a collapsed position in response to the first and second elongate members being maintained in a first longitudinal position relative to one another.
17. The system of claim 16 wherein the self-expanding device comprises:
a plurality of biased members biased to an expanded position relative to the elongate members and configured such that when the elongate members are in the first position relative to one another, the biased members are held in a radially contracted position closely approximating an outer diameter of at least one of the first and second elongate members and when the elongate members are in a second position relative to one another, the second position being longitudinally offset from the first position, the biased members are allowed to expand radially outwardly.
a plurality of biased members biased to an expanded position relative to the elongate members and configured such that when the elongate members are in the first position relative to one another, the biased members are held in a radially contracted position closely approximating an outer diameter of at least one of the first and second elongate members and when the elongate members are in a second position relative to one another, the second position being longitudinally offset from the first position, the biased members are allowed to expand radially outwardly.
18. The system of claim 17 wherein the first elongate member includes a hub with a retaining rim, and wherein the second elongate member includes the biased members, the retaining rim and the biased members having cooperable surfaces such that when the first and second elongate members are in the first position, the retaining rim engages the biased members retaining them in a collapsed position, and when the first and second elongate members are in the second position, the cooperable surfaces are out of engagement with one another allowing the biased members to deploy to a radially expanded position.
19. The system of claim 1 and further comprising:
a third elongate member cooperable with the first and second elongate members and having a delivery portion proximate a distal end thereof and configured to deliver embolic material to the aneurysm.
a third elongate member cooperable with the first and second elongate members and having a delivery portion proximate a distal end thereof and configured to deliver embolic material to the aneurysm.
20. The system of claim 1 wherein one of the first and second elongate members includes a delivery portion for delivering the embolic material to the aneurysm.
21. A method of treating an aneurysm having a neck communicating with a vessel, comprising:
providing a delivery device having a delivery portion suitable for delivery of embolic material;
placing the delivery device in the neck of the aneurysm;
placing an expandable member proximate the neck;
expanding the expandable member to overlie substantially the entire neck;
delivering embolic material to the aneurysm with the delivery device; and holding the expandable member over the neck to inhibit movement of the embolic material out of the aneurysm, while allowing flow of blood through the vessel past the neck of the aneurysm.
providing a delivery device having a delivery portion suitable for delivery of embolic material;
placing the delivery device in the neck of the aneurysm;
placing an expandable member proximate the neck;
expanding the expandable member to overlie substantially the entire neck;
delivering embolic material to the aneurysm with the delivery device; and holding the expandable member over the neck to inhibit movement of the embolic material out of the aneurysm, while allowing flow of blood through the vessel past the neck of the aneurysm.
22. The method of claim 21 wherein holding the expandable member over the neck comprises:
allowing blood to flow out of the aneurysm during delivery of the embolic material to the aneurysm.
allowing blood to flow out of the aneurysm during delivery of the embolic material to the aneurysm.
23. The method of claim 22 wherein the expandable member is provided on a first elongate member and wherein holding the expandable member over the neck comprises:
pushing longitudinally on the first elongate member such that the expandable member engages a wall of the vessel about the neck of the aneurysm.
pushing longitudinally on the first elongate member such that the expandable member engages a wall of the vessel about the neck of the aneurysm.
24. The method of claim 21 wherein placing an expandable member proximate the neck comprises:
providing a first elongate member and a second elongate member longitudinally movable relative to the first elongate member, wherein the expandable member is operably coupled to a distal region of the first and second elongate members;
and wherein expanding the expandable member includes longitudinally moving the first and second elongate members relative to one another such that the expandable member moves between an expanded position and a contracted position.
providing a first elongate member and a second elongate member longitudinally movable relative to the first elongate member, wherein the expandable member is operably coupled to a distal region of the first and second elongate members;
and wherein expanding the expandable member includes longitudinally moving the first and second elongate members relative to one another such that the expandable member moves between an expanded position and a contracted position.
25. The method of claim 24 wherein placing an expandable member proximate the neck comprises:
providing a first collapsible tube generally coaxially arranged with the first and second elongate members, having a first end connected to the first elongate member and a second end connected to the second elongate member; and wherein expanding the expandable member includes longitudinally moving the first and second elongate members relative to one another to cause variation in a distance between the first and second ends of the first collapsible tube.
providing a first collapsible tube generally coaxially arranged with the first and second elongate members, having a first end connected to the first elongate member and a second end connected to the second elongate member; and wherein expanding the expandable member includes longitudinally moving the first and second elongate members relative to one another to cause variation in a distance between the first and second ends of the first collapsible tube.
26. The method of claim 25 wherein providing a first collapsible tube comprises:
providing a first plurality of struts having distal ends coupled to one of the first and second elongate members and proximal ends coupled to another of the first and second elongate members; and wherein expanding the expandable member includes manipulating the first and second elongate members relative to one another to cause movement of the proximal and distal ends of the first plurality of struts toward one another causing the first struts to bow radially outwardly relative to the first and second elongate members.
providing a first plurality of struts having distal ends coupled to one of the first and second elongate members and proximal ends coupled to another of the first and second elongate members; and wherein expanding the expandable member includes manipulating the first and second elongate members relative to one another to cause movement of the proximal and distal ends of the first plurality of struts toward one another causing the first struts to bow radially outwardly relative to the first and second elongate members.
27. The method of claim 26 wherein the first and second elongate members are rotatable relative to one another and wherein expanding the expandable member comprises:
rotating the first and second elongate members relative to one another to adjust an outer diameter defined by the first struts, when bowed outwardly.
rotating the first and second elongate members relative to one another to adjust an outer diameter defined by the first struts, when bowed outwardly.
28. The method of claim 26 wherein placing the expandable member proximate the neck comprises:
providing a second collapsible tube generally coaxially arranged with the first collapsible tube having a first end operably connected to the first elongate member and a second end operably connected to the second elongate member;
and wherein expanding the expandable member includes longitudinally moving the first and second elongate members relative to one another to cause variation in a distance between the first and second ends of the second collapsible tube.
providing a second collapsible tube generally coaxially arranged with the first collapsible tube having a first end operably connected to the first elongate member and a second end operably connected to the second elongate member;
and wherein expanding the expandable member includes longitudinally moving the first and second elongate members relative to one another to cause variation in a distance between the first and second ends of the second collapsible tube.
29. The method of claim 28 wherein providing a second collapsible tube comprises:
providing a second plurality of struts having distal ends coupled to one of the first and second elongate members and proximal ends coupled to another of the first and second elongate members; and wherein expanding the expandable member includes moving the proximal and distal ends thereof toward one another to cause the second struts to bow radially outwardly relative to the first and second elongate members.
providing a second plurality of struts having distal ends coupled to one of the first and second elongate members and proximal ends coupled to another of the first and second elongate members; and wherein expanding the expandable member includes moving the proximal and distal ends thereof toward one another to cause the second struts to bow radially outwardly relative to the first and second elongate members.
30. The method of claim 29 wherein the second struts are angularly offset from the first struts about the periphery of the first and second elongate members and wherein expanding the expandable member includes causing the first and second struts to bow outwardly such that radially outwardly displaced portions of the second struts reside in spaces between radially outwardly displaced portions of the first struts.
31. The method of claim 27. wherein a first portion of the expandable member, when expanded, has apertures therein such that the first portion has a first surface area per unit of area, and wherein a second portion of the expandable member, when expanded, has apertures therein such that the second portion has a second surface area per unit of area, the second surface area being smaller than the first surface area, and wherein holding the expandable member over the neck comprises:
holding the first portion of the expandable member over the neck while retaining the second portion in the parent vessel.
holding the first portion of the expandable member over the neck while retaining the second portion in the parent vessel.
32. The method of claim 24 wherein the expandable member comprises an expandable mesh disposed about an outer periphery of the first and second elongate members and wherein expanding the expandable member comprises:
manipulating the first and second elongate members to move the expandable mesh to the expanded position.
manipulating the first and second elongate members to move the expandable mesh to the expanded position.
33. The method of claim 32 wherein the mesh has at least one aperture therein sized to receive a delivery device therethrough for delivering embolic material; and wherein delivering embolic material comprises:
delivering the embolic material with the delivery device through the at least one aperture.
delivering the embolic material with the delivery device through the at least one aperture.
34. The method of claim 33 wherein delivering the embolic material with the delivery device comprises:
delivering the embolic material through a delivery portion in one of the first and second elongate members.
delivering the embolic material through a delivery portion in one of the first and second elongate members.
35. The method of claim 24 wherein placing an expandable member proximate the neck comprises:
providing a first elongate member and a second elongate member longitudinally movable relative to the first elongate member, wherein the expandable member is operably coupled to a distal region of at least one of the first and second elongate members; and providing a self expanding device biased to be retained in a collapsed position in response to the first and second elongate members being maintained in a first longitudinal position relative to one another; and wherein expanding the expandable member comprises moving the first and second elongate members out of the first longitudinal position.
providing a first elongate member and a second elongate member longitudinally movable relative to the first elongate member, wherein the expandable member is operably coupled to a distal region of at least one of the first and second elongate members; and providing a self expanding device biased to be retained in a collapsed position in response to the first and second elongate members being maintained in a first longitudinal position relative to one another; and wherein expanding the expandable member comprises moving the first and second elongate members out of the first longitudinal position.
36. The method of claim 35 wherein providing the self-expanding device comprises:
providing a plurality of biased members biased to an expanded position relative to the elongate members and configured such that when the elongate members are in the first position relative to one another, the biased members are held in a radially contracted position closely approximating an outer diameter of at least one of the first and second elongate members; and wherein expanding the expandable member comprises moving the elongate members to a second position relative to one another, the second position being longitudinally offset from the first position, such that the biased members are allowed to expand radially outwardly.
providing a plurality of biased members biased to an expanded position relative to the elongate members and configured such that when the elongate members are in the first position relative to one another, the biased members are held in a radially contracted position closely approximating an outer diameter of at least one of the first and second elongate members; and wherein expanding the expandable member comprises moving the elongate members to a second position relative to one another, the second position being longitudinally offset from the first position, such that the biased members are allowed to expand radially outwardly.
37. The method of claim 36 wherein the first elongate member includes a hub with a retaining rim, and wherein the second elongate member includes the biased members, the retaining rim and the biased members having cooperable surfaces such that when the first and second elongate members are in the first position, the retaining rim engages the biased members retaining them in a collapsed position; and wherein expanding the expandable member includes moving the first and second elongate members to the second position such that the cooperable surfaces are out of engagement with one another allowing the biased members to deploy to a radially expanded position.
-36-~
-36-~
38. The method of claim 21 wherein the delivery device comprises a third elongate member cooperable with the first and second elongate members and wherein.
delivering embolic material to the aneurysm comprises moving a delivery portion of the third elongate member into the aneurysm and delivering the embolic material to the aneurysm with the third elongate member.
delivering embolic material to the aneurysm comprises moving a delivery portion of the third elongate member into the aneurysm and delivering the embolic material to the aneurysm with the third elongate member.
39. The method of claim 21 and further comprising:
allowing the embolic material to remain in the aneurysm for a time period while holding the expandable member over the neck; and removing the expandable member from the vessel.
allowing the embolic material to remain in the aneurysm for a time period while holding the expandable member over the neck; and removing the expandable member from the vessel.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/891,011 | 1997-07-10 | ||
US08/891,011 US5928260A (en) | 1997-07-10 | 1997-07-10 | Removable occlusion system for aneurysm neck |
PCT/US1998/013989 WO1999002093A1 (en) | 1997-07-10 | 1998-07-07 | Removable occlusion system for aneurysm neck |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2294707A1 true CA2294707A1 (en) | 1999-01-21 |
Family
ID=25397471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002294707A Abandoned CA2294707A1 (en) | 1997-07-10 | 1998-07-07 | Removable occlusion system for aneurysm neck |
Country Status (9)
Country | Link |
---|---|
US (4) | US5928260A (en) |
EP (1) | EP0996370B1 (en) |
JP (1) | JP4358987B2 (en) |
AT (1) | ATE416685T1 (en) |
AU (1) | AU8290598A (en) |
CA (1) | CA2294707A1 (en) |
DE (1) | DE69840328D1 (en) |
ES (1) | ES2318871T3 (en) |
WO (1) | WO1999002093A1 (en) |
Families Citing this family (598)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5713848A (en) * | 1993-05-19 | 1998-02-03 | Dubrul; Will R. | Vibrating catheter |
US6039749A (en) | 1994-02-10 | 2000-03-21 | Endovascular Systems, Inc. | Method and apparatus for deploying non-circular stents and graftstent complexes |
US6994689B1 (en) * | 1995-06-05 | 2006-02-07 | Medtronic Vascular, Inc. | Occlusion of a vessel |
US6800080B1 (en) * | 1996-05-03 | 2004-10-05 | Scimed Life Systems, Inc. | Medical retrieval device |
EP0934092A4 (en) * | 1997-03-06 | 2008-03-26 | Boston Scient Scimed Inc | Distal protection device and method |
WO1998047447A1 (en) * | 1997-04-23 | 1998-10-29 | Dubrul William R | Bifurcated stent and distal protection system |
US5911734A (en) * | 1997-05-08 | 1999-06-15 | Embol-X, Inc. | Percutaneous catheter and guidewire having filter and medical device deployment capabilities |
US5972015A (en) * | 1997-08-15 | 1999-10-26 | Kyphon Inc. | Expandable, asymetric structures for deployment in interior body regions |
US5928260A (en) * | 1997-07-10 | 1999-07-27 | Scimed Life Systems, Inc. | Removable occlusion system for aneurysm neck |
US7569066B2 (en) * | 1997-07-10 | 2009-08-04 | Boston Scientific Scimed, Inc. | Methods and devices for the treatment of aneurysms |
GB9715241D0 (en) * | 1997-07-18 | 1997-09-24 | Jeffree Martin A | Device for treating aneurysms |
US6070589A (en) | 1997-08-01 | 2000-06-06 | Teramed, Inc. | Methods for deploying bypass graft stents |
US6340356B1 (en) | 1997-09-23 | 2002-01-22 | NAVIA JOSé ANTONIO | Intraluminal catheter with expandable tubular open-walled element |
US6511468B1 (en) * | 1997-10-17 | 2003-01-28 | Micro Therapeutics, Inc. | Device and method for controlling injection of liquid embolic composition |
US6461370B1 (en) * | 1998-11-03 | 2002-10-08 | C. R. Bard, Inc. | Temporary vascular filter guide wire |
BR9813935A (en) | 1997-11-07 | 2000-09-19 | Salviac Ltd | Vascular filtration devices for removing embolic material from body fluids |
US20040260333A1 (en) * | 1997-11-12 | 2004-12-23 | Dubrul William R. | Medical device and method |
US6238412B1 (en) * | 1997-11-12 | 2001-05-29 | William Dubrul | Biological passageway occlusion removal |
US6270464B1 (en) | 1998-06-22 | 2001-08-07 | Artemis Medical, Inc. | Biopsy localization method and device |
US9498604B2 (en) | 1997-11-12 | 2016-11-22 | Genesis Technologies Llc | Medical device and method |
US20040010206A1 (en) * | 1998-02-10 | 2004-01-15 | Dubrul William R. | Intraoperative tissue treatment methods |
US20100030256A1 (en) | 1997-11-12 | 2010-02-04 | Genesis Technologies Llc | Medical Devices and Methods |
US20040199202A1 (en) * | 1997-11-12 | 2004-10-07 | Genesis Technologies Llc | Biological passageway occlusion removal |
US6530923B1 (en) * | 1998-02-10 | 2003-03-11 | Artemis Medical, Inc. | Tissue removal methods and apparatus |
US6159178A (en) * | 1998-01-23 | 2000-12-12 | Heartport, Inc. | Methods and devices for occluding the ascending aorta and maintaining circulation of oxygenated blood in the patient when the patient's heart is arrested |
US6602265B2 (en) * | 1998-02-10 | 2003-08-05 | Artemis Medical, Inc. | Tissue separation medical device and method |
EP1054635B1 (en) * | 1998-02-10 | 2010-01-06 | Artemis Medical, Inc. | Occlusion, anchoring, tensioning or flow direction apparatus |
EP1054634A4 (en) | 1998-02-10 | 2006-03-29 | Artemis Medical Inc | Entrapping apparatus and method for use |
US6656215B1 (en) | 2000-11-16 | 2003-12-02 | Cordis Corporation | Stent graft having an improved means for attaching a stent to a graft |
US20100036481A1 (en) * | 1998-04-27 | 2010-02-11 | Artemis Medical, Inc. | Cardiovascular Devices and Methods |
US6450989B2 (en) * | 1998-04-27 | 2002-09-17 | Artemis Medical, Inc. | Dilating and support apparatus with disease inhibitors and methods for use |
JP2002507930A (en) * | 1998-04-27 | 2002-03-12 | ドゥブルル,ウィリアム,アール | Expandable support device with disease inhibitor and method of using same |
US20020058882A1 (en) * | 1998-06-22 | 2002-05-16 | Artemis Medical, Incorporated | Biopsy localization method and device |
US7004962B2 (en) * | 1998-07-27 | 2006-02-28 | Schneider (Usa), Inc. | Neuroaneurysm occlusion and delivery device and method of using same |
US7169160B1 (en) * | 1998-07-28 | 2007-01-30 | Medtronic, Inc. | Device for anchoring tubular element |
US6179860B1 (en) | 1998-08-19 | 2001-01-30 | Artemis Medical, Inc. | Target tissue localization device and method |
US7410482B2 (en) | 1998-09-04 | 2008-08-12 | Boston Scientific-Scimed, Inc. | Detachable aneurysm neck bridge |
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 |
US7713282B2 (en) * | 1998-11-06 | 2010-05-11 | Atritech, Inc. | Detachable atrial appendage occlusion balloon |
US6146396A (en) * | 1999-03-05 | 2000-11-14 | Board Of Regents, The University Of Texas System | Declotting method and apparatus |
US7150756B2 (en) * | 1999-04-01 | 2006-12-19 | Scion Cardio-Vascular, Inc | Radiopaque locking frame, filter and flexible end |
US6632197B2 (en) * | 1999-04-16 | 2003-10-14 | Thomas R. Lyon | Clear view cannula |
US6375668B1 (en) * | 1999-06-02 | 2002-04-23 | Hanson S. Gifford | Devices and methods for treating vascular malformations |
US20020169473A1 (en) * | 1999-06-02 | 2002-11-14 | Concentric Medical, Inc. | Devices and methods for treating vascular malformations |
US7637905B2 (en) | 2003-01-15 | 2009-12-29 | Usgi Medical, Inc. | Endoluminal tool deployment system |
US8574243B2 (en) | 1999-06-25 | 2013-11-05 | Usgi Medical, Inc. | Apparatus and methods for forming and securing gastrointestinal tissue folds |
US7416554B2 (en) | 2002-12-11 | 2008-08-26 | Usgi Medical Inc | Apparatus and methods for forming and securing gastrointestinal tissue folds |
US7618426B2 (en) | 2002-12-11 | 2009-11-17 | Usgi Medical, Inc. | Apparatus and methods for forming gastrointestinal tissue approximations |
US7279007B2 (en) * | 1999-08-09 | 2007-10-09 | Cardioklnetix, Inc. | Method for improving cardiac function |
US7674222B2 (en) * | 1999-08-09 | 2010-03-09 | Cardiokinetix, Inc. | Cardiac device and methods of use thereof |
US8529430B2 (en) | 2002-08-01 | 2013-09-10 | Cardiokinetix, Inc. | Therapeutic methods and devices following myocardial infarction |
US8257428B2 (en) | 1999-08-09 | 2012-09-04 | Cardiokinetix, Inc. | System for improving cardiac function |
US20030109770A1 (en) * | 1999-08-09 | 2003-06-12 | Sharkey Hugh R. | Device with a porous membrane for improving cardiac function |
US8246671B2 (en) | 1999-08-09 | 2012-08-21 | Cardiokinetix, Inc. | Retrievable cardiac devices |
US8377114B2 (en) * | 1999-08-09 | 2013-02-19 | Cardiokinetix, Inc. | Sealing and filling ventricular partitioning devices to improve cardiac function |
US20060229491A1 (en) * | 2002-08-01 | 2006-10-12 | Cardiokinetix, Inc. | Method for treating myocardial rupture |
US7582051B2 (en) * | 2005-06-10 | 2009-09-01 | Cardiokinetix, Inc. | Peripheral seal for a ventricular partitioning device |
US10307147B2 (en) | 1999-08-09 | 2019-06-04 | Edwards Lifesciences Corporation | System for improving cardiac function by sealing a partitioning membrane within a ventricle |
US9694121B2 (en) | 1999-08-09 | 2017-07-04 | Cardiokinetix, Inc. | Systems and methods for improving cardiac function |
AU6896400A (en) * | 1999-08-13 | 2001-03-13 | Percusurge, Inc. | Occlusion of a vessel |
US6231561B1 (en) | 1999-09-20 | 2001-05-15 | Appriva Medical, Inc. | Method and apparatus for closing a body lumen |
US6689150B1 (en) * | 1999-10-27 | 2004-02-10 | Atritech, Inc. | Filter apparatus for ostium of left atrial appendage |
US6551303B1 (en) | 1999-10-27 | 2003-04-22 | Atritech, Inc. | Barrier device for ostium of left atrial appendage |
US6652555B1 (en) * | 1999-10-27 | 2003-11-25 | Atritech, Inc. | Barrier device for covering the ostium of left atrial appendage |
US20030093104A1 (en) * | 1999-10-29 | 2003-05-15 | Bonner Matthew D. | Methods and apparatus for providing intra-pericardial access |
US7758521B2 (en) * | 1999-10-29 | 2010-07-20 | Medtronic, Inc. | Methods and systems for accessing the pericardial space |
US6613062B1 (en) * | 1999-10-29 | 2003-09-02 | Medtronic, Inc. | Method and apparatus for providing intra-pericardial access |
US20050154370A1 (en) | 1999-10-29 | 2005-07-14 | Medtronic, Inc. | Methods and systems for providing therapies into the pericardial space |
US6994092B2 (en) * | 1999-11-08 | 2006-02-07 | Ev3 Sunnyvale, Inc. | Device for containing embolic material in the LAA having a plurality of tissue retention structures |
US6702834B1 (en) * | 1999-12-30 | 2004-03-09 | Advanced Cardiovascular Systems, Inc. | Embolic protection devices |
US8758400B2 (en) | 2000-01-05 | 2014-06-24 | Integrated Vascular Systems, Inc. | Closure system and methods of use |
US6391048B1 (en) | 2000-01-05 | 2002-05-21 | Integrated Vascular Systems, Inc. | Integrated vascular device with puncture site closure component and sealant and methods of use |
US9579091B2 (en) | 2000-01-05 | 2017-02-28 | Integrated Vascular Systems, Inc. | Closure system and methods of use |
US6491671B1 (en) * | 2000-03-14 | 2002-12-10 | Vanderbilt University | Microcatheter with hemodynamic guide structure |
US6695865B2 (en) * | 2000-03-20 | 2004-02-24 | Advanced Bio Prosthetic Surfaces, Ltd. | Embolic protection device |
EP1642544B1 (en) | 2000-05-03 | 2009-04-08 | C.R.Bard, Inc. | Apparatus for mapping and ablation in electrophysiology procedures |
US20030204188A1 (en) * | 2001-11-07 | 2003-10-30 | Artemis Medical, Inc. | Tissue separating and localizing catheter assembly |
US7534242B2 (en) * | 2003-02-25 | 2009-05-19 | Artemis Medical, Inc. | Tissue separating catheter assembly and method |
US20030083656A1 (en) * | 2000-11-07 | 2003-05-01 | George Morrison | Tissue separator assembly and method |
US8298257B2 (en) | 2000-06-29 | 2012-10-30 | Concentric Medical, Inc. | Systems, methods and devices for removing obstructions from a blood vessel |
US6730104B1 (en) | 2000-06-29 | 2004-05-04 | Concentric Medical, Inc. | Methods and devices for removing an obstruction from a blood vessel |
US7153323B1 (en) * | 2000-06-30 | 2006-12-26 | Boston Scientific Scimed, Inc. | Aneurysm liner with multi-segment extender |
US6464665B1 (en) * | 2000-07-05 | 2002-10-15 | Richard R. Heuser | Catheter apparatus and method for arterializing a vein |
US6482222B1 (en) | 2000-07-11 | 2002-11-19 | Rafael Medical Technologies Inc. | Intravascular filter |
US8398537B2 (en) | 2005-06-10 | 2013-03-19 | Cardiokinetix, Inc. | Peripheral seal for a ventricular partitioning device |
US9332992B2 (en) | 2004-08-05 | 2016-05-10 | Cardiokinetix, Inc. | Method for making a laminar ventricular partitioning device |
US7399271B2 (en) * | 2004-01-09 | 2008-07-15 | Cardiokinetix, Inc. | Ventricular partitioning device |
US10064696B2 (en) | 2000-08-09 | 2018-09-04 | Edwards Lifesciences Corporation | Devices and methods for delivering an endocardial device |
US7762943B2 (en) * | 2004-03-03 | 2010-07-27 | Cardiokinetix, Inc. | Inflatable ventricular partitioning device |
US9078660B2 (en) | 2000-08-09 | 2015-07-14 | Cardiokinetix, Inc. | Devices and methods for delivering an endocardial device |
US7862500B2 (en) * | 2002-08-01 | 2011-01-04 | Cardiokinetix, Inc. | Multiple partitioning devices for heart treatment |
US20060030881A1 (en) | 2004-08-05 | 2006-02-09 | Cardiokinetix, Inc. | Ventricular partitioning device |
US9332993B2 (en) | 2004-08-05 | 2016-05-10 | Cardiokinetix, Inc. | Devices and methods for delivering an endocardial device |
US6855154B2 (en) | 2000-08-11 | 2005-02-15 | University Of Louisville Research Foundation, Inc. | Endovascular aneurysm treatment device and method |
US20020022860A1 (en) * | 2000-08-18 | 2002-02-21 | Borillo Thomas E. | Expandable implant devices for filtering blood flow from atrial appendages |
JP2004508092A (en) | 2000-09-08 | 2004-03-18 | コールマン ジェイムス イー | Surgical stapler |
US6554849B1 (en) | 2000-09-11 | 2003-04-29 | Cordis Corporation | Intravascular embolization device |
US6511496B1 (en) * | 2000-09-12 | 2003-01-28 | Advanced Cardiovascular Systems, Inc. | Embolic protection device for use in interventional procedures |
US7169164B2 (en) | 2000-09-21 | 2007-01-30 | Atritech, Inc. | Apparatus for implanting devices in atrial appendages |
US6626918B1 (en) | 2000-10-06 | 2003-09-30 | Medical Technology Group | Apparatus and methods for positioning a vascular sheath |
CA2409104A1 (en) * | 2000-10-11 | 2002-04-18 | Micro Therapeutics, Inc. | Methods for treating aneurysms |
US6589265B1 (en) * | 2000-10-31 | 2003-07-08 | Endovascular Technologies, Inc. | Intrasaccular embolic device |
US6623510B2 (en) | 2000-12-07 | 2003-09-23 | Integrated Vascular Systems, Inc. | Closure device and methods for making and using them |
US6695867B2 (en) | 2002-02-21 | 2004-02-24 | Integrated Vascular Systems, Inc. | Plunger apparatus and methods for delivering a closure device |
US6527790B2 (en) * | 2000-12-07 | 2003-03-04 | Scimed Life Systems, Inc. | Intravascular balloon catheter for embolic coil delivery |
US8690910B2 (en) | 2000-12-07 | 2014-04-08 | Integrated Vascular Systems, Inc. | Closure device and methods for making and using them |
CA2441119A1 (en) * | 2001-03-08 | 2002-09-19 | Atritech, Inc. | Atrial filter implants |
ATE418287T1 (en) * | 2001-04-27 | 2009-01-15 | Bard Inc C R | CATHETER FOR THREE-DIMENSIONAL IMAGING OF ELECTRICAL ACTIVITY IN BLOOD VESSELS |
US7727229B2 (en) | 2001-05-01 | 2010-06-01 | C.R. Bard, Inc. | Method and apparatus for altering conduction properties in the heart and in adjacent vessels |
US6855153B2 (en) * | 2001-05-01 | 2005-02-15 | Vahid Saadat | Embolic balloon |
EP1392394A4 (en) * | 2001-06-04 | 2005-05-18 | Albert Einstein Healthcare Network | Cardiac stimulating apparatus having a blood clot filter and atrial pacer |
US20020188314A1 (en) * | 2001-06-07 | 2002-12-12 | Microvena Corporation | Radiopaque distal embolic protection device |
US20030181927A1 (en) * | 2001-06-21 | 2003-09-25 | Wallace Michael P. | Aneurysm neck obstruction device |
US6572628B2 (en) * | 2001-06-28 | 2003-06-03 | Cordis Neurovascular, Inc. | Method and apparatus for placing a medical agent into a vessel of the body |
US7640952B2 (en) * | 2001-06-28 | 2010-01-05 | Lithotech Medical Ltd. | Method for manufacturing a surgical device for extracting a foreign object |
IL159572A0 (en) * | 2001-06-28 | 2004-06-01 | Lithotech Medical Ltd | Foreign body retrieval device |
US20030100945A1 (en) | 2001-11-23 | 2003-05-29 | Mindguard Ltd. | Implantable intraluminal device and method of using same in treating aneurysms |
US7455666B2 (en) * | 2001-07-13 | 2008-11-25 | Board Of Regents, The University Of Texas System | Methods and apparatuses for navigating the subarachnoid space |
US20030093105A1 (en) * | 2001-07-13 | 2003-05-15 | Scimed Life Systems, Inc. | Guide catheter for introduction into the subarachnoid space and methods of use thereof |
US7150737B2 (en) | 2001-07-13 | 2006-12-19 | Sci/Med Life Systems, Inc. | Methods and apparatuses for navigating the subarachnoid space |
US7011647B2 (en) * | 2001-07-13 | 2006-03-14 | Scimed Life Systems, Inc. | Introducer sheath |
US20030014075A1 (en) * | 2001-07-16 | 2003-01-16 | Microvention, Inc. | Methods, materials and apparatus for deterring or preventing endoleaks following endovascular graft implanation |
US7011671B2 (en) * | 2001-07-18 | 2006-03-14 | Atritech, Inc. | Cardiac implant device tether system and method |
US8715312B2 (en) * | 2001-07-20 | 2014-05-06 | Microvention, Inc. | Aneurysm treatment device and method of use |
US20030028209A1 (en) * | 2001-07-31 | 2003-02-06 | Clifford Teoh | Expandable body cavity liner device |
EP2292292B1 (en) | 2001-09-04 | 2018-04-11 | Covidien LP | Occlusion catheter having compliant balloon for use with complex vasculature |
JP2003093395A (en) * | 2001-09-21 | 2003-04-02 | Asahi Intecc Co Ltd | Treating implement for medical treatment |
JP4429589B2 (en) * | 2001-11-15 | 2010-03-10 | コーディス・ニューロバスキュラー・インコーポレイテッド | Aneurysm embolization device using an occluding member |
US6740105B2 (en) * | 2001-11-23 | 2004-05-25 | Mind Guard Ltd. | Expandable delivery appliance particularly for delivering intravascular devices |
US20060292206A1 (en) | 2001-11-26 | 2006-12-28 | Kim Steven W | Devices and methods for treatment of vascular aneurysms |
US7867250B2 (en) * | 2001-12-19 | 2011-01-11 | Nmt Medical, Inc. | Septal occluder and associated methods |
US7318833B2 (en) | 2001-12-19 | 2008-01-15 | Nmt Medical, Inc. | PFO closure device with flexible thrombogenic joint and improved dislodgement resistance |
US7220265B2 (en) * | 2002-01-14 | 2007-05-22 | Nmt Medical, Inc. | Patent foramen ovale (PFO) closure method and device |
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 |
US7029440B2 (en) * | 2002-03-13 | 2006-04-18 | Scimed Life Systems, Inc. | Distal protection filter and method of manufacture |
AU2003220502A1 (en) * | 2002-03-25 | 2003-10-13 | Nmt Medical, Inc. | Patent foramen ovale (pfo) closure clips |
US7695488B2 (en) * | 2002-03-27 | 2010-04-13 | Boston Scientific Scimed, Inc. | Expandable body cavity liner device |
US9440046B2 (en) | 2002-04-04 | 2016-09-13 | Angiodynamics, Inc. | Venous insufficiency treatment method |
US20030195553A1 (en) * | 2002-04-12 | 2003-10-16 | Scimed Life Systems, Inc. | System and method for retaining vaso-occlusive devices within an aneurysm |
WO2003101310A1 (en) | 2002-06-04 | 2003-12-11 | Christy Cummins | Blood vessel closure clip and delivery device |
EP1538994A4 (en) | 2002-06-05 | 2008-05-07 | Nmt Medical Inc | Patent foramen ovale (pfo) closure device with radial and circumferential support |
US20080287939A1 (en) * | 2002-07-10 | 2008-11-20 | Appling William M | Endovascular thermal treatment device with flexible guide tip and method |
ES2527051T3 (en) * | 2002-07-10 | 2015-01-20 | Angiodynamics, Inc. | Endovascular treatment device that has a fiber tip separator or spacer |
US20080208180A1 (en) * | 2002-07-10 | 2008-08-28 | Cartier William A | Endovascular treatment sheath having a heat insulative tip and method for using the same |
WO2008124790A2 (en) | 2002-07-10 | 2008-10-16 | Angiodynamics, Inc. | Device and method for endovascular treatment for causing closure of a blood vessel |
US20040172056A1 (en) * | 2002-07-12 | 2004-09-02 | Guterman Lee R. | Bifurcated aneurysm buttress arrangement |
US20050119684A1 (en) * | 2002-07-12 | 2005-06-02 | Guterman Lee R. | Aneurysm buttress arrangement |
US8425549B2 (en) * | 2002-07-23 | 2013-04-23 | Reverse Medical Corporation | Systems and methods for removing obstructive matter from body lumens and treating vascular defects |
US7303575B2 (en) * | 2002-08-01 | 2007-12-04 | Lumen Biomedical, Inc. | Embolism protection devices |
JP4418366B2 (en) * | 2002-08-13 | 2010-02-17 | ウィルソン−クック・メディカル・インコーポレーテッド | ERCP catheter with removable handle for basket-compatible basket |
CA2714875C (en) | 2002-08-28 | 2014-01-07 | Heart Leaflet Technologies, Inc. | Method and device for treating diseased valve |
US7083633B2 (en) * | 2002-09-03 | 2006-08-01 | Advanced Vascular Technologies Llc | Arterial embolic filter deployed from catheter |
US20040093011A1 (en) * | 2002-10-01 | 2004-05-13 | Scimed Life Systems, Inc. | Embolic protection device with lesion length assessment markers |
AU2003284976A1 (en) | 2002-10-25 | 2004-05-13 | Nmt Medical, Inc. | Expandable sheath tubing |
AU2003287554A1 (en) * | 2002-11-06 | 2004-06-03 | Nmt Medical, Inc. | Medical devices utilizing modified shape memory alloy |
US7481821B2 (en) | 2002-11-12 | 2009-01-27 | Thomas J. Fogarty | Embolization device and a method of using the same |
US20040111112A1 (en) * | 2002-11-20 | 2004-06-10 | Hoffmann Gerard Von | Method and apparatus for retaining embolic material |
US9017373B2 (en) * | 2002-12-09 | 2015-04-28 | W.L. Gore & Associates, Inc. | Septal closure devices |
US7942898B2 (en) * | 2002-12-11 | 2011-05-17 | Usgi Medical, Inc. | Delivery systems and methods for gastric reduction |
US7942884B2 (en) | 2002-12-11 | 2011-05-17 | Usgi Medical, Inc. | Methods for reduction of a gastric lumen |
US20050043585A1 (en) * | 2003-01-03 | 2005-02-24 | Arindam Datta | Reticulated elastomeric matrices, their manufacture and use in implantable devices |
US7229454B2 (en) | 2003-01-07 | 2007-06-12 | Boston Scientific Scimed, Inc. | Occlusive cinching devices and methods of use |
US20080208160A9 (en) * | 2003-01-10 | 2008-08-28 | Mawad Michel E | Microcatheter including swellable tip |
US7166088B2 (en) | 2003-01-27 | 2007-01-23 | Heuser Richard R | Catheter introducer system |
US8202293B2 (en) | 2003-01-30 | 2012-06-19 | Integrated Vascular Systems, Inc. | Clip applier and methods of use |
US8398656B2 (en) | 2003-01-30 | 2013-03-19 | Integrated Vascular Systems, Inc. | Clip applier and methods of use |
US7744583B2 (en) * | 2003-02-03 | 2010-06-29 | Boston Scientific Scimed | Systems and methods of de-endothelialization |
WO2004071343A2 (en) * | 2003-02-11 | 2004-08-26 | Cook, Inc. | Removable vena cava filter |
US20040260382A1 (en) | 2003-02-12 | 2004-12-23 | Fogarty Thomas J. | Intravascular implants and methods of using the same |
US20040193208A1 (en) * | 2003-03-27 | 2004-09-30 | Scimed Life Systems, Inc. | Radiopaque embolic protection filter membrane |
EP2213257B1 (en) * | 2003-03-28 | 2013-04-24 | C. R. Bard, Inc. | Braided Mesh Catheter |
US7951557B2 (en) * | 2003-04-27 | 2011-05-31 | Protalix Ltd. | Human lysosomal proteins from plant cell culture |
US20100196345A1 (en) * | 2003-04-27 | 2010-08-05 | Protalix | Production of high mannose proteins in plant culture |
CN101193623A (en) | 2003-05-15 | 2008-06-04 | 柏尔迈瑞克斯公司 | Reticulated elastomeric matrices manufacture and use |
EP1648340B1 (en) * | 2003-05-19 | 2010-03-03 | SeptRx, Inc. | Tissue distention device and related methods for therapeutic intervention |
US8480706B2 (en) | 2003-07-14 | 2013-07-09 | W.L. Gore & Associates, Inc. | Tubular patent foramen ovale (PFO) closure device with catch system |
US9861346B2 (en) | 2003-07-14 | 2018-01-09 | W. L. Gore & Associates, Inc. | Patent foramen ovale (PFO) closure device with linearly elongating petals |
JP4917887B2 (en) * | 2003-07-14 | 2012-04-18 | ダブリュー.エル.ゴア アンド アソシエイツ,インコーポレイテッド | Tubular patent foramen ovale (PFO) closure device with capture system |
US20050015110A1 (en) | 2003-07-18 | 2005-01-20 | Fogarty Thomas J. | Embolization device and a method of using the same |
CA2532548A1 (en) * | 2003-07-18 | 2005-02-03 | Boston Scientific Limited | Medical devices |
US7879062B2 (en) * | 2003-07-22 | 2011-02-01 | Lumen Biomedical, Inc. | Fiber based embolism protection device |
US7309345B2 (en) * | 2003-07-25 | 2007-12-18 | Boston Scientific-Scimed, Inc. | Method and system for delivering an implant utilizing a lumen reducing member |
US7735493B2 (en) * | 2003-08-15 | 2010-06-15 | Atritech, Inc. | System and method for delivering a left atrial appendage containment device |
EP1660167B1 (en) * | 2003-08-19 | 2008-11-12 | NMT Medical, Inc. | Expandable sheath tubing |
US7402141B2 (en) * | 2003-08-27 | 2008-07-22 | Heuser Richard R | Catheter guidewire system using concentric wires |
US20070203452A1 (en) * | 2003-10-07 | 2007-08-30 | Mehta Bharat A | Platform Catheter |
US7232461B2 (en) * | 2003-10-29 | 2007-06-19 | Cordis Neurovascular, Inc. | Neck covering device for an aneurysm |
US20050273119A1 (en) | 2003-12-09 | 2005-12-08 | Nmt Medical, Inc. | Double spiral patent foramen ovale closure clamp |
US7347863B2 (en) | 2004-05-07 | 2008-03-25 | Usgi Medical, Inc. | Apparatus and methods for manipulating and securing tissue |
US7763077B2 (en) | 2003-12-24 | 2010-07-27 | Biomerix Corporation | Repair of spinal annular defects and annulo-nucleoplasty regeneration |
US7854756B2 (en) | 2004-01-22 | 2010-12-21 | Boston Scientific Scimed, Inc. | Medical devices |
US20050177185A1 (en) * | 2004-02-05 | 2005-08-11 | Scimed Life Systems, Inc. | Counterwound coil for embolic protection sheath |
EP1987787A1 (en) * | 2004-02-19 | 2008-11-05 | Applied Medical Resources Corporation | Embolectomy capture sheath |
WO2005092203A1 (en) | 2004-03-03 | 2005-10-06 | Nmt Medical, Inc. | Delivery/recovery system for septal occluder |
US7988705B2 (en) * | 2004-03-06 | 2011-08-02 | Lumen Biomedical, Inc. | Steerable device having a corewire within a tube and combination with a functional medical component |
US9039724B2 (en) * | 2004-03-19 | 2015-05-26 | Aga Medical Corporation | Device for occluding vascular defects |
US8777974B2 (en) | 2004-03-19 | 2014-07-15 | Aga Medical Corporation | Multi-layer braided structures for occluding vascular defects |
US8747453B2 (en) * | 2008-02-18 | 2014-06-10 | Aga Medical Corporation | Stent/stent graft for reinforcement of vascular abnormalities and associated method |
US8313505B2 (en) | 2004-03-19 | 2012-11-20 | Aga Medical Corporation | Device for occluding vascular defects |
US8398670B2 (en) * | 2004-03-19 | 2013-03-19 | Aga Medical Corporation | Multi-layer braided structures for occluding vascular defects and for occluding fluid flow through portions of the vasculature of the body |
US20050267524A1 (en) * | 2004-04-09 | 2005-12-01 | Nmt Medical, Inc. | Split ends closure device |
JP4898986B2 (en) | 2004-04-16 | 2012-03-21 | クック メディカル テクノロジーズ エルエルシー | Removable vena cava filter with anchor shape to reduce damage |
US7625390B2 (en) | 2004-04-16 | 2009-12-01 | Cook Incorporated | Removable vena cava filter |
AU2005235301B2 (en) | 2004-04-16 | 2010-07-22 | Cook, Inc. | Removable vena cava filter for reduced trauma in collapsed configuration |
DK1737384T3 (en) | 2004-04-16 | 2010-03-08 | Cook Inc | Removable vena cava filter with inwardly directed anchoring hooks in collapsed condition |
DK1737383T3 (en) | 2004-04-16 | 2015-01-12 | Cook Medical Technologies Llc | Removable VENA CAVA FILTER by bearers FOR IMPROVED COLLECTION AND FEED |
US8361110B2 (en) * | 2004-04-26 | 2013-01-29 | W.L. Gore & Associates, Inc. | Heart-shaped PFO closure device |
US8308760B2 (en) | 2004-05-06 | 2012-11-13 | W.L. Gore & Associates, Inc. | Delivery systems and methods for PFO closure device with two anchors |
US7842053B2 (en) | 2004-05-06 | 2010-11-30 | Nmt Medical, Inc. | Double coil occluder |
US8444657B2 (en) | 2004-05-07 | 2013-05-21 | Usgi Medical, Inc. | Apparatus and methods for rapid deployment of tissue anchors |
US20050251205A1 (en) | 2004-05-07 | 2005-11-10 | Usgi Medical Inc. | Apparatus and methods for positioning and securing anchors |
US8257394B2 (en) | 2004-05-07 | 2012-09-04 | Usgi Medical, Inc. | Apparatus and methods for positioning and securing anchors |
US8257389B2 (en) * | 2004-05-07 | 2012-09-04 | W.L. Gore & Associates, Inc. | Catching mechanisms for tubular septal occluder |
EP1761186B1 (en) * | 2004-05-17 | 2016-01-06 | Boston Scientific Scimed, Inc. | Apparatus for mapping and/or ablation of cardiac tissue |
US20070190108A1 (en) * | 2004-05-17 | 2007-08-16 | Arindam Datta | High performance reticulated elastomeric matrix preparation, properties, reinforcement, and use in surgical devices, tissue augmentation and/or tissue repair |
EP1750619B1 (en) | 2004-05-25 | 2013-07-24 | Covidien LP | Flexible vascular occluding device |
CA2758946C (en) | 2004-05-25 | 2014-10-21 | Tyco Healthcare Group Lp | Vascular stenting for aneurysms |
US9675476B2 (en) | 2004-05-25 | 2017-06-13 | Covidien Lp | Vascular stenting for aneurysms |
US8623067B2 (en) | 2004-05-25 | 2014-01-07 | Covidien Lp | Methods and apparatus for luminal stenting |
US8267985B2 (en) | 2005-05-25 | 2012-09-18 | Tyco Healthcare Group Lp | System and method for delivering and deploying an occluding device within a vessel |
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 |
US7736379B2 (en) | 2004-06-09 | 2010-06-15 | Usgi Medical, Inc. | Compressible tissue anchor assemblies |
US8206417B2 (en) | 2004-06-09 | 2012-06-26 | Usgi Medical Inc. | Apparatus and methods for optimizing anchoring force |
US7678135B2 (en) | 2004-06-09 | 2010-03-16 | Usgi Medical, Inc. | Compressible tissue anchor assemblies |
US20050283166A1 (en) * | 2004-06-17 | 2005-12-22 | Secant Medical, Llc | Expandible snare |
US20090012429A1 (en) * | 2004-08-25 | 2009-01-08 | Heuser Richard R | Catheter guidewire system using concentric wires |
US8545418B2 (en) | 2004-08-25 | 2013-10-01 | Richard R. Heuser | Systems and methods for ablation of occlusions within blood vessels |
EP1827250B1 (en) * | 2004-08-31 | 2018-05-16 | Cook Medical Technologies LLC | Device for treating an aneurysm |
JP2008513141A (en) * | 2004-09-17 | 2008-05-01 | コーディス・ニューロバスキュラー・インコーポレイテッド | Thin-film metal instrument for plugging an aneurysm or blood vessel |
WO2006034153A2 (en) * | 2004-09-17 | 2006-03-30 | Cordis Neurovascular, Inc. | Thin film metallic devices for plugging aneurysms or vessels |
AU2005305367A1 (en) * | 2004-09-22 | 2006-05-18 | Lee R. Guterman | Cranial aneurysm treatment arrangement |
WO2006032291A1 (en) | 2004-09-22 | 2006-03-30 | Dendron Gmbh | Micro-spiral implantation device |
ATE417552T1 (en) | 2004-09-22 | 2009-01-15 | Dendron Gmbh | MEDICAL IMPLANT |
WO2006033088A2 (en) * | 2004-09-24 | 2006-03-30 | Ingeneus Inc. | Genomic assay |
CA2581677C (en) * | 2004-09-24 | 2014-07-29 | Nmt Medical, Inc. | Occluder device double securement system for delivery/recovery of such occluder device |
JP2008514293A (en) | 2004-09-27 | 2008-05-08 | クック インコーポレイテッド | Removable vena cava filter with struts with axial curvature |
WO2006042114A1 (en) | 2004-10-06 | 2006-04-20 | Cook, Inc. | Emboli capturing device having a coil and method for capturing emboli |
EP1799126B1 (en) | 2004-10-15 | 2011-12-07 | Codman & Shurtleff, Inc. | Remodeling device for aneurysms |
US7799078B2 (en) * | 2004-11-12 | 2010-09-21 | Warsaw Orthopedic, Inc. | Implantable vertebral lift |
US20060116714A1 (en) * | 2004-11-26 | 2006-06-01 | Ivan Sepetka | Coupling and release devices and methods for their assembly and use |
US8771294B2 (en) | 2004-11-26 | 2014-07-08 | Biomerix Corporation | Aneurysm treatment devices and methods |
US7433739B1 (en) * | 2004-11-30 | 2008-10-07 | Pacesetter, Inc. | Passive fixation mechanism for epicardial sensing and stimulation lead placed through pericardial access |
US20060206139A1 (en) * | 2005-01-19 | 2006-09-14 | Tekulve Kurt J | Vascular occlusion device |
WO2006081407A1 (en) * | 2005-01-26 | 2006-08-03 | Micrus Corporation | Implantable microcoil with microscopic porosity surface |
US20110054511A1 (en) * | 2005-01-26 | 2011-03-03 | Micrus Endovascular Corporation | Adding microscopic porosity to the surface of a microcoil to be used for medical implantation |
WO2006086516A2 (en) * | 2005-02-09 | 2006-08-17 | Angiodynamics, Inc. | Reinforced balloon for a catheter |
US20060184194A1 (en) * | 2005-02-15 | 2006-08-17 | Cook Incorporated | Embolic protection device |
US8882787B2 (en) * | 2005-03-02 | 2014-11-11 | St. Jude Medical, Cardiology Division, Inc. | Tissue anchor apparatus |
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 |
WO2006102213A1 (en) | 2005-03-18 | 2006-09-28 | Nmt Medical, Inc. | Catch member for pfo occluder |
US20060259132A1 (en) * | 2005-05-02 | 2006-11-16 | Cook Incorporated | Vascular stent for embolic protection |
US7967747B2 (en) * | 2005-05-10 | 2011-06-28 | Boston Scientific Scimed, Inc. | Filtering apparatus and methods of use |
US8273101B2 (en) | 2005-05-25 | 2012-09-25 | Tyco Healthcare Group Lp | System and method for delivering and deploying an occluding device within a vessel |
WO2006127005A1 (en) | 2005-05-25 | 2006-11-30 | Chestnut Medical Technologies, Inc. | System and method for delivering and deploying and occluding device within a vessel |
US8298291B2 (en) | 2005-05-26 | 2012-10-30 | Usgi Medical, Inc. | Methods and apparatus for securing and deploying tissue anchors |
US9585651B2 (en) | 2005-05-26 | 2017-03-07 | Usgi Medical, Inc. | Methods and apparatus for securing and deploying tissue anchors |
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 |
US20080114439A1 (en) * | 2005-06-28 | 2008-05-15 | Venkatesh Ramaiah | Non-occluding dilation device |
US20080058856A1 (en) * | 2005-06-28 | 2008-03-06 | Venkatesh Ramaiah | Non-occluding dilation device |
WO2007002863A2 (en) * | 2005-06-28 | 2007-01-04 | Venkatesh Ramaiah | Non-occlusive, retrievable dilation system |
US8313497B2 (en) | 2005-07-01 | 2012-11-20 | Abbott Laboratories | Clip applier and methods of use |
US7766934B2 (en) | 2005-07-12 | 2010-08-03 | Cook Incorporated | Embolic protection device with an integral basket and bag |
US7771452B2 (en) | 2005-07-12 | 2010-08-10 | Cook Incorporated | Embolic protection device with a filter bag that disengages from a basket |
US8187298B2 (en) | 2005-08-04 | 2012-05-29 | Cook Medical Technologies Llc | Embolic protection device having inflatable frame |
FR2890306B1 (en) * | 2005-09-08 | 2007-11-02 | Beatrix Jean | DEVICE FOR THE TREATMENT OF A VASCULAR POCKET |
US7972359B2 (en) | 2005-09-16 | 2011-07-05 | Atritech, Inc. | Intracardiac cage and method of delivering same |
US8377092B2 (en) | 2005-09-16 | 2013-02-19 | Cook Medical Technologies Llc | Embolic protection device |
WO2007041131A2 (en) * | 2005-09-30 | 2007-04-12 | Cook Incorporated | Coated vaso-occlusion 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 |
US8252017B2 (en) | 2005-10-18 | 2012-08-28 | Cook Medical Technologies Llc | Invertible filter for embolic protection |
US8545530B2 (en) | 2005-10-19 | 2013-10-01 | Pulsar Vascular, Inc. | Implantable aneurysm closure systems and methods |
JP2009512515A (en) | 2005-10-19 | 2009-03-26 | パルサー バスキュラー インコーポレイテッド | Methods and systems for clipping within a vessel and repairing intraluminal and tissue defects. |
CA2627285A1 (en) * | 2005-10-24 | 2007-10-25 | Nmt Medical, Inc. | Radiopaque bioabsorbable occluder |
US8216269B2 (en) | 2005-11-02 | 2012-07-10 | Cook Medical Technologies Llc | Embolic protection device having reduced profile |
US20070100372A1 (en) * | 2005-11-02 | 2007-05-03 | Cook Incorporated | Embolic protection device having a filter |
US8152831B2 (en) | 2005-11-17 | 2012-04-10 | Cook Medical Technologies Llc | Foam embolic protection device |
US8052714B2 (en) * | 2005-11-22 | 2011-11-08 | Medtronic Vascular, Inc. | Radiopaque fibers and filtration matrices |
US20070135826A1 (en) | 2005-12-01 | 2007-06-14 | Steve Zaver | Method and apparatus for delivering an implant without bias to a left atrial appendage |
US8292827B2 (en) * | 2005-12-12 | 2012-10-23 | Boston Scientific Scimed, Inc. | Micromachined medical devices |
WO2007073566A1 (en) | 2005-12-22 | 2007-06-28 | Nmt Medical, Inc. | Catch members for occluder devices |
US7374567B2 (en) * | 2006-01-25 | 2008-05-20 | Heuser Richard R | Catheter system for connecting adjacent blood vessels |
US8062321B2 (en) | 2006-01-25 | 2011-11-22 | Pq Bypass, Inc. | Catheter system for connecting adjacent blood vessels |
US8152833B2 (en) | 2006-02-22 | 2012-04-10 | Tyco Healthcare Group Lp | Embolic protection systems having radiopaque filter mesh |
US8870913B2 (en) | 2006-03-31 | 2014-10-28 | W.L. Gore & Associates, Inc. | Catch system with locking cap for patent foramen ovale (PFO) occluder |
EP2004068B1 (en) * | 2006-03-31 | 2018-08-15 | W.L. Gore & Associates, Inc. | Deformable flap catch mechanism for occluder device |
US8551135B2 (en) * | 2006-03-31 | 2013-10-08 | W.L. Gore & Associates, Inc. | Screw catch mechanism for PFO occluder and method of use |
US8777979B2 (en) | 2006-04-17 | 2014-07-15 | Covidien Lp | System and method for mechanically positioning intravascular implants |
JP5230602B2 (en) | 2006-04-17 | 2013-07-10 | タイコ ヘルスケア グループ リミテッド パートナーシップ | System and method for mechanically positioning an endovascular implant |
US8556930B2 (en) | 2006-06-28 | 2013-10-15 | Abbott Laboratories | Vessel closure device |
FR2903301B1 (en) * | 2006-07-06 | 2008-08-29 | Stephane Regnault | GASTROSTOMY TUBE AND METHODS OF MANUFACTURING THE SAME |
EP2066860A2 (en) * | 2006-08-10 | 2009-06-10 | Paul A. Heltai | Pocket shutter |
CA2660851A1 (en) * | 2006-08-17 | 2008-02-21 | Nfocus Neuromedical, Inc. | Isolation devices for the treatment of aneurysms |
US20080071307A1 (en) | 2006-09-19 | 2008-03-20 | Cook Incorporated | Apparatus and methods for in situ embolic protection |
US20080097401A1 (en) * | 2006-09-22 | 2008-04-24 | Trapp Benjamin M | Cerebral vasculature device |
US8992545B2 (en) * | 2006-09-28 | 2015-03-31 | W.L. Gore & Associates, Inc. | Implant-catheter attachment mechanism using snare and method of use |
EP2068764A4 (en) * | 2006-09-28 | 2016-07-27 | Heart Leaflet Technologies Inc | Delivery tool for percutaneous delivery of a prosthesis |
WO2008042311A1 (en) * | 2006-09-28 | 2008-04-10 | Nmt Medical. Inc. | Perforated expandable implant recovery sheath |
US20080161825A1 (en) * | 2006-11-20 | 2008-07-03 | Stout Medical Group, L.P. | Anatomical measurement tool |
US8187315B1 (en) | 2006-12-08 | 2012-05-29 | Cardica, Inc. | Partial stent for treatment of a vascular aneurysm |
US20080281350A1 (en) * | 2006-12-13 | 2008-11-13 | Biomerix Corporation | Aneurysm Occlusion Devices |
US8480702B2 (en) * | 2007-01-11 | 2013-07-09 | Covidien Lp | Convertible embolic protection devices and methods of use |
US7916309B2 (en) | 2007-04-23 | 2011-03-29 | California Institute Of Technology | Single-lens, single-aperture, single-sensor 3-D imaging device |
AU2008209480A1 (en) | 2007-01-22 | 2008-07-31 | California Institute Of Technology | Method for quantitative 3-D imaging |
US20080195141A1 (en) * | 2007-02-08 | 2008-08-14 | James Teague | Backstop protection device and method of using the same |
US9901434B2 (en) | 2007-02-27 | 2018-02-27 | Cook Medical Technologies Llc | Embolic protection device including a Z-stent waist band |
CN101677821B (en) | 2007-03-13 | 2014-05-14 | 泰科保健集团有限合伙公司 | Implant and mandrel |
AU2008226694B8 (en) | 2007-03-13 | 2013-06-20 | Covidien Lp | An implant including a coil and a stretch-resistant member |
CA2682440C (en) * | 2007-03-29 | 2015-06-16 | Frantz Medical Development, Ltd. | Securable cannula and method |
WO2008124603A1 (en) | 2007-04-05 | 2008-10-16 | Nmt Medical, Inc. | Septal closure device with centering mechanism |
WO2008131167A1 (en) | 2007-04-18 | 2008-10-30 | Nmt Medical, Inc. | Flexible catheter system |
SG187447A1 (en) * | 2007-05-07 | 2013-02-28 | Protalix Ltd | Large scale disposable bioreactor |
US20080287982A1 (en) * | 2007-05-16 | 2008-11-20 | Boston Scientific Scimed, Inc. | Catheters for electrolytically detachable embolic devices |
US20110022149A1 (en) | 2007-06-04 | 2011-01-27 | Cox Brian J | Methods and devices for treatment of vascular defects |
WO2008157507A2 (en) * | 2007-06-15 | 2008-12-24 | Nfocus Neuromedical, Inc. | Blood flow diverters and aneurysm covering devices |
US9023094B2 (en) | 2007-06-25 | 2015-05-05 | Microvention, Inc. | Self-expanding prosthesis |
US8475489B2 (en) * | 2007-07-13 | 2013-07-02 | Percutaneous Systems, Inc. | Apparatus for occluding body lumens |
US7879066B2 (en) * | 2007-07-13 | 2011-02-01 | Percutaneous Sustems, Inc. | Apparatus for occluding body lumens |
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 |
US8419748B2 (en) | 2007-09-14 | 2013-04-16 | Cook Medical Technologies Llc | Helical thrombus removal device |
US10123803B2 (en) | 2007-10-17 | 2018-11-13 | Covidien Lp | Methods of managing neurovascular obstructions |
US20100022951A1 (en) * | 2008-05-19 | 2010-01-28 | Luce, Forward, Hamilton 7 Scripps, Llp | Detachable hub/luer device and processes |
US8926680B2 (en) | 2007-11-12 | 2015-01-06 | Covidien Lp | Aneurysm neck bridging processes with revascularization systems methods and products thereby |
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 |
US9220522B2 (en) | 2007-10-17 | 2015-12-29 | Covidien Lp | Embolus removal systems with baskets |
US9198687B2 (en) | 2007-10-17 | 2015-12-01 | Covidien Lp | Acute stroke revascularization/recanalization systems processes and products thereby |
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 |
US8585713B2 (en) | 2007-10-17 | 2013-11-19 | Covidien Lp | Expandable tip assembly for thrombus management |
US11337714B2 (en) | 2007-10-17 | 2022-05-24 | Covidien Lp | Restoring blood flow and clot removal during acute ischemic stroke |
US8246672B2 (en) | 2007-12-27 | 2012-08-21 | Cook Medical Technologies Llc | Endovascular graft with separately positionable and removable frame units |
WO2009103125A1 (en) * | 2008-02-20 | 2009-08-27 | Neustent Pty Ltd | A stent |
JP5457373B2 (en) | 2008-02-22 | 2014-04-02 | コヴィディエン リミテッド パートナーシップ | Device for blood flow recovery |
US20130165967A1 (en) | 2008-03-07 | 2013-06-27 | W.L. Gore & Associates, Inc. | Heart occlusion devices |
DE102008015781B4 (en) * | 2008-03-26 | 2011-09-29 | Malte Neuss | Device for sealing defects in the vascular system |
EP2460478B1 (en) * | 2008-04-21 | 2021-09-08 | Covidien LP | Braid-ball embolic devices and delivery systems |
US10028747B2 (en) | 2008-05-01 | 2018-07-24 | Aneuclose Llc | Coils with a series of proximally-and-distally-connected loops for occluding a cerebral aneurysm |
US10716573B2 (en) | 2008-05-01 | 2020-07-21 | Aneuclose | Janjua aneurysm net with a resilient neck-bridging portion for occluding a cerebral aneurysm |
US8974487B2 (en) * | 2008-05-01 | 2015-03-10 | Aneuclose Llc | Aneurysm occlusion device |
JP2011519632A (en) | 2008-05-02 | 2011-07-14 | シークエント メディカル, インコーポレイテッド | Filament devices for the treatment of vascular disorders |
US9675482B2 (en) | 2008-05-13 | 2017-06-13 | Covidien Lp | Braid implant delivery systems |
US9282965B2 (en) | 2008-05-16 | 2016-03-15 | Abbott Laboratories | Apparatus and methods for engaging tissue |
US8070694B2 (en) * | 2008-07-14 | 2011-12-06 | Medtronic Vascular, Inc. | Fiber based medical devices and aspiration catheters |
EP2341843A1 (en) | 2008-07-22 | 2011-07-13 | Micro Therapeutics, Inc. | Vascular remodeling device |
EP2349431B1 (en) | 2008-08-19 | 2015-01-21 | Covidien LP | Detachable tip microcatheter |
US20100047210A1 (en) * | 2008-08-25 | 2010-02-25 | Medtronic Vascular, Inc. | Systems and Methods for Positioning of Needles and Other Devices Within Body Tissue |
WO2010027391A2 (en) | 2008-08-27 | 2010-03-11 | California Institute Of Technology | Method and device for high-resolution three-dimensional imaging which obtains camera pose using defocusing |
EP3903696A1 (en) | 2008-09-05 | 2021-11-03 | Pulsar Vascular, Inc. | Systems and methods for supporting or occluding a physiological opening or cavity |
US20190167302A9 (en) * | 2008-10-10 | 2019-06-06 | Surgiquest, Inc. | Low-profile surgical access devices with anchoring |
WO2010048177A2 (en) * | 2008-10-20 | 2010-04-29 | IMDS, Inc. | Systems and methods for aneurysm treatment and vessel occlusion |
US8398676B2 (en) | 2008-10-30 | 2013-03-19 | Abbott Vascular Inc. | Closure device |
US8246648B2 (en) | 2008-11-10 | 2012-08-21 | Cook Medical Technologies Llc | Removable vena cava filter with improved leg |
US20100131002A1 (en) * | 2008-11-24 | 2010-05-27 | Connor Robert A | Stent with a net layer to embolize and aneurysm |
WO2010068793A1 (en) * | 2008-12-10 | 2010-06-17 | Microvention, Inc. | Microcatheter |
US8388644B2 (en) | 2008-12-29 | 2013-03-05 | Cook Medical Technologies Llc | Embolic protection device and method of use |
US9089311B2 (en) | 2009-01-09 | 2015-07-28 | Abbott Vascular Inc. | Vessel closure devices and methods |
US9486191B2 (en) | 2009-01-09 | 2016-11-08 | Abbott Vascular, Inc. | Closure devices |
US9414820B2 (en) | 2009-01-09 | 2016-08-16 | Abbott Vascular Inc. | Closure devices, systems, and methods |
US20100179567A1 (en) * | 2009-01-09 | 2010-07-15 | Abbott Vascular Inc. | Closure devices, systems, and methods |
US20100179589A1 (en) | 2009-01-09 | 2010-07-15 | Abbott Vascular Inc. | Rapidly eroding anchor |
US9173644B2 (en) | 2009-01-09 | 2015-11-03 | Abbott Vascular Inc. | Closure devices, systems, and methods |
US20100185234A1 (en) | 2009-01-16 | 2010-07-22 | Abbott Vascular Inc. | Closure devices, systems, and methods |
US20100211094A1 (en) * | 2009-02-18 | 2010-08-19 | Cook Incorporated | Umbrella distal embolic protection device |
US20100274276A1 (en) * | 2009-04-22 | 2010-10-28 | Ricky Chow | Aneurysm treatment system, device and method |
US20100274277A1 (en) * | 2009-04-27 | 2010-10-28 | Cook Incorporated | Embolic protection device with maximized flow-through |
US8784467B2 (en) * | 2009-05-15 | 2014-07-22 | Lemaitre Vascular, Inc. | Non-occlusive dilation devices |
US20120029556A1 (en) | 2009-06-22 | 2012-02-02 | Masters Steven J | Sealing device and delivery system |
US8956389B2 (en) | 2009-06-22 | 2015-02-17 | W. L. Gore & Associates, Inc. | Sealing device and delivery system |
US8409269B2 (en) | 2009-12-21 | 2013-04-02 | Covidien Lp | Procedures for vascular occlusion |
US8773507B2 (en) | 2009-08-11 | 2014-07-08 | California Institute Of Technology | Defocusing feature matching system to measure camera pose with interchangeable lens cameras |
US20110054492A1 (en) | 2009-08-26 | 2011-03-03 | Abbott Laboratories | Medical device for repairing a fistula |
EP2805680B1 (en) | 2009-09-04 | 2017-10-25 | Pulsar Vascular, Inc. | Systems for enclosing an anatomical opening |
WO2011044387A2 (en) | 2009-10-07 | 2011-04-14 | The Board Of Regents Of The University Of Texas System | Pressure-sensing medical devices, systems and methods, and methods of forming medical devices |
WO2011056578A2 (en) | 2009-10-26 | 2011-05-12 | Cardiokinetix, Inc. | Ventricular volume reduction |
US20110106012A1 (en) * | 2009-10-29 | 2011-05-05 | Velarde Franz E | Sheath Introducer with Self-Anchoring Mechanism |
BR112012010758A2 (en) * | 2009-11-05 | 2019-09-24 | Sequent Medical Inc | multilayer filament devices for treatment of vascular defects |
JP5711251B2 (en) | 2009-11-09 | 2015-04-30 | コヴィディエン リミテッド パートナーシップ | Features of braided ball embolizer |
US9358140B1 (en) | 2009-11-18 | 2016-06-07 | Aneuclose Llc | Stent with outer member to embolize an aneurysm |
US8906057B2 (en) * | 2010-01-04 | 2014-12-09 | Aneuclose Llc | Aneurysm embolization by rotational accumulation of mass |
CN102770091B (en) | 2010-01-28 | 2015-07-08 | 泰科保健集团有限合伙公司 | Vascular remodeling device |
US9468442B2 (en) | 2010-01-28 | 2016-10-18 | Covidien Lp | Vascular remodeling device |
US9017351B2 (en) | 2010-06-29 | 2015-04-28 | Artventive Medical Group, Inc. | Reducing flow through a tubular structure |
US9247942B2 (en) | 2010-06-29 | 2016-02-02 | Artventive Medical Group, Inc. | Reversible tubal contraceptive device |
US8425548B2 (en) | 2010-07-01 | 2013-04-23 | Aneaclose LLC | Occluding member expansion and then stent expansion for aneurysm treatment |
US9561094B2 (en) | 2010-07-23 | 2017-02-07 | Nfinium Vascular Technologies, Llc | Devices and methods for treating venous diseases |
CN103221975B (en) | 2010-09-03 | 2017-04-19 | 加州理工学院 | Three-dimensional imaging system |
US8998947B2 (en) | 2010-09-10 | 2015-04-07 | Medina Medical, Inc. | Devices and methods for the treatment of vascular defects |
US8974512B2 (en) | 2010-09-10 | 2015-03-10 | Medina Medical, Inc. | Devices and methods for the treatment of vascular defects |
US9125800B2 (en) * | 2010-09-27 | 2015-09-08 | Avent, Inc. | Stoma length indicator assembly and positioning system |
US9149277B2 (en) | 2010-10-18 | 2015-10-06 | Artventive Medical Group, Inc. | Expandable device delivery |
WO2012058109A1 (en) * | 2010-10-28 | 2012-05-03 | Cook Medical Technologies Llc | Ablation device |
US9545323B2 (en) * | 2010-11-16 | 2017-01-17 | W. L. Gore & Associates, Inc. | Fenestration devices, systems, and methods |
WO2012078678A1 (en) | 2010-12-06 | 2012-06-14 | Tyco Healthcare Group Lp | Vascular remodeling device |
US20120165785A1 (en) * | 2010-12-23 | 2012-06-28 | Schatz Richard A | Catheter System for a Needle Injector with an Automatic Needle/Barrier Extension |
US9005234B2 (en) * | 2010-12-30 | 2015-04-14 | Cook Medical Technologies Llc | Occlusion device |
US10022212B2 (en) | 2011-01-13 | 2018-07-17 | Cook Medical Technologies Llc | Temporary venous filter with anti-coagulant delivery method |
JP5868432B2 (en) | 2011-02-11 | 2016-02-24 | コヴィディエン リミテッド パートナーシップ | Two-stage deployed aneurysm embolization device |
WO2012114334A1 (en) | 2011-02-24 | 2012-08-30 | Ilan Ben Oren | Hybrid catheter for endoluminal intervention |
CN103648575B (en) | 2011-02-25 | 2016-10-26 | 微排放器公司 | The foley's tube strengthened |
US9089332B2 (en) | 2011-03-25 | 2015-07-28 | Covidien Lp | Vascular remodeling device |
US10028745B2 (en) | 2011-03-30 | 2018-07-24 | Noha, Llc | Advanced endovascular clip and method of using same |
US10398444B2 (en) | 2011-03-30 | 2019-09-03 | Noha, Llc | Advanced endovascular clip and method of using same |
AU2012253583B2 (en) | 2011-05-11 | 2014-09-25 | Covidien Lp | Vascular remodeling device |
CN103702708B (en) * | 2011-05-23 | 2016-03-23 | 奈缇路有限公司 | For the development mechanism of vascular insertion apparatus in body |
US9138232B2 (en) | 2011-05-24 | 2015-09-22 | Aneuclose Llc | Aneurysm occlusion by rotational dispensation of mass |
EP2713905B1 (en) | 2011-06-03 | 2022-03-16 | Pulsar Vascular, Inc. | Systems for enclosing an anatomical opening, including shock absorbing aneurysm devices |
WO2012167156A1 (en) | 2011-06-03 | 2012-12-06 | Pulsar Vascular, Inc. | Aneurysm devices with additional anchoring mechanisms and associated systems and methods |
US8992513B2 (en) | 2011-06-30 | 2015-03-31 | Angiodynamics, Inc | Endovascular plasma treatment device and method of use |
WO2013016618A2 (en) * | 2011-07-27 | 2013-01-31 | The Cleveland Clinic Foundation | Apparatus, system, and method for treating a regurgitant heart valve |
US10799360B2 (en) | 2011-07-27 | 2020-10-13 | The Cleveland Clinic Foundation | Systems and methods for treating a regurgitant heart valve |
WO2013022796A2 (en) | 2011-08-05 | 2013-02-14 | Silk Road Medical, Inc. | Methods and systems for treatment of acute ischemic stroke |
US20130041398A1 (en) * | 2011-08-08 | 2013-02-14 | James Goddard | Dilator |
US9770232B2 (en) | 2011-08-12 | 2017-09-26 | W. L. Gore & Associates, Inc. | Heart occlusion devices |
CN103889348B (en) | 2011-08-25 | 2016-10-12 | 柯惠有限合伙公司 | For treating the system of cavity tissue, apparatus and method |
WO2013049448A1 (en) | 2011-09-29 | 2013-04-04 | Covidien Lp | Vascular remodeling device |
EP3738527A1 (en) | 2011-10-05 | 2020-11-18 | Pulsar Vascular, Inc. | Devices for enclosing an anatomical opening |
US9072620B2 (en) | 2011-11-04 | 2015-07-07 | Covidien Lp | Protuberant aneurysm bridging device deployment method |
WO2013070686A1 (en) | 2011-11-08 | 2013-05-16 | Boston Scientific Scimed, Inc. | Handle assembly for a left atrial appendage occlusion device |
US9332976B2 (en) | 2011-11-30 | 2016-05-10 | Abbott Cardiovascular Systems, Inc. | Tissue closure device |
US9579104B2 (en) * | 2011-11-30 | 2017-02-28 | Covidien Lp | Positioning and detaching implants |
US10342548B2 (en) * | 2012-01-13 | 2019-07-09 | W. L. Gore & Associates, Inc. | Occlusion devices and methods of their manufacture and use |
PL2804548T3 (en) | 2012-01-17 | 2019-10-31 | Perflow Medical Ltd | Apparatus for occlusion removal |
US9011480B2 (en) | 2012-01-20 | 2015-04-21 | Covidien Lp | Aneurysm treatment coils |
US9687245B2 (en) | 2012-03-23 | 2017-06-27 | Covidien Lp | Occlusive devices and methods of use |
US9265514B2 (en) | 2012-04-17 | 2016-02-23 | Miteas Ltd. | Manipulator for grasping tissue |
US9259229B2 (en) | 2012-05-10 | 2016-02-16 | Pulsar Vascular, Inc. | Systems and methods for enclosing an anatomical opening, including coil-tipped aneurysm devices |
US10124087B2 (en) | 2012-06-19 | 2018-11-13 | Covidien Lp | Detachable coupling for catheter |
US9155647B2 (en) | 2012-07-18 | 2015-10-13 | Covidien Lp | Methods and apparatus for luminal stenting |
US9101449B2 (en) | 2012-07-27 | 2015-08-11 | Cook Medical Technologies Llc | Filter removal device |
US9114001B2 (en) | 2012-10-30 | 2015-08-25 | Covidien Lp | Systems for attaining a predetermined porosity of a vascular device |
US9452070B2 (en) | 2012-10-31 | 2016-09-27 | Covidien Lp | Methods and systems for increasing a density of a region of a vascular device |
US9186267B2 (en) | 2012-10-31 | 2015-11-17 | Covidien Lp | Wing bifurcation reconstruction device |
US9314248B2 (en) | 2012-11-06 | 2016-04-19 | Covidien Lp | Multi-pivot thrombectomy device |
US9943427B2 (en) | 2012-11-06 | 2018-04-17 | Covidien Lp | Shaped occluding devices and methods of using the same |
CN108354645A (en) | 2012-11-13 | 2018-08-03 | 柯惠有限合伙公司 | plugging device |
US9364209B2 (en) | 2012-12-21 | 2016-06-14 | Abbott Cardiovascular Systems, Inc. | Articulating suturing device |
US9295571B2 (en) | 2013-01-17 | 2016-03-29 | Covidien Lp | Methods and apparatus for luminal stenting |
US10828019B2 (en) | 2013-01-18 | 2020-11-10 | W.L. Gore & Associates, Inc. | Sealing device and delivery system |
US9095344B2 (en) | 2013-02-05 | 2015-08-04 | Artventive Medical Group, Inc. | Methods and apparatuses for blood vessel occlusion |
US9157174B2 (en) | 2013-02-05 | 2015-10-13 | Covidien Lp | Vascular device for aneurysm treatment and providing blood flow into a perforator vessel |
US8984733B2 (en) | 2013-02-05 | 2015-03-24 | Artventive Medical Group, Inc. | Bodily lumen occlusion |
US9463105B2 (en) | 2013-03-14 | 2016-10-11 | Covidien Lp | Methods and apparatus for luminal stenting |
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 |
WO2014150288A2 (en) | 2013-03-15 | 2014-09-25 | Insera Therapeutics, Inc. | Vascular treatment devices and methods |
EP2967571B1 (en) | 2013-03-15 | 2022-08-31 | Covidien LP | Occlusive device |
WO2014145012A2 (en) | 2013-03-15 | 2014-09-18 | Covidien Lp | Delivery and detachment mechanisms for vascular implants |
US8715315B1 (en) | 2013-03-15 | 2014-05-06 | Insera Therapeutics, Inc. | Vascular treatment systems |
US9907684B2 (en) | 2013-05-08 | 2018-03-06 | Aneuclose Llc | Method of radially-asymmetric stent expansion |
US9636116B2 (en) | 2013-06-14 | 2017-05-02 | Artventive Medical Group, Inc. | Implantable luminal devices |
US10149968B2 (en) | 2013-06-14 | 2018-12-11 | Artventive Medical Group, Inc. | Catheter-assisted tumor treatment |
US9737308B2 (en) | 2013-06-14 | 2017-08-22 | Artventive Medical Group, Inc. | Catheter-assisted tumor treatment |
AU2014277922B2 (en) | 2013-06-14 | 2019-01-31 | Avantec Vascular Corporation | Inferior Vena Cava filter and retrieval systems |
US9737306B2 (en) | 2013-06-14 | 2017-08-22 | Artventive Medical Group, Inc. | Implantable luminal devices |
US9078658B2 (en) | 2013-08-16 | 2015-07-14 | Sequent Medical, Inc. | Filamentary devices for treatment of vascular defects |
US9955976B2 (en) | 2013-08-16 | 2018-05-01 | Sequent Medical, Inc. | Filamentary devices for treatment of vascular defects |
US9566153B2 (en) * | 2013-09-12 | 2017-02-14 | St. Jude Medical, Cardiology Division, Inc. | Alignment of an implantable medical device |
WO2015073704A1 (en) | 2013-11-13 | 2015-05-21 | Covidien Lp | Galvanically assisted attachment of medical devices to thrombus |
WO2015095538A1 (en) | 2013-12-20 | 2015-06-25 | Microvention, Inc. | Vascular occlusion |
US10045786B2 (en) | 2013-12-20 | 2018-08-14 | Microvention, Inc. | Expansile member |
US9265512B2 (en) | 2013-12-23 | 2016-02-23 | Silk Road Medical, Inc. | Transcarotid neurovascular catheter |
US9730701B2 (en) | 2014-01-16 | 2017-08-15 | Boston Scientific Scimed, Inc. | Retrieval wire centering device |
US9820761B2 (en) | 2014-03-21 | 2017-11-21 | Route 92 Medical, Inc. | Rapid aspiration thrombectomy system and method |
US9968740B2 (en) * | 2014-03-25 | 2018-05-15 | Surefire Medical, Inc. | Closed tip dynamic microvalve protection device |
US11154302B2 (en) | 2014-03-31 | 2021-10-26 | DePuy Synthes Products, Inc. | Aneurysm occlusion device |
US11076860B2 (en) | 2014-03-31 | 2021-08-03 | DePuy Synthes Products, Inc. | Aneurysm occlusion device |
US9629635B2 (en) | 2014-04-14 | 2017-04-25 | Sequent Medical, Inc. | Devices for therapeutic vascular procedures |
US9713475B2 (en) | 2014-04-18 | 2017-07-25 | Covidien Lp | Embolic medical devices |
EP3970635A1 (en) | 2014-04-30 | 2022-03-23 | Cerus Endovascular Limited | Occlusion device |
US10363043B2 (en) | 2014-05-01 | 2019-07-30 | Artventive Medical Group, Inc. | Treatment of incompetent vessels |
WO2015187196A1 (en) | 2014-06-04 | 2015-12-10 | Nfinium Vascular Technologies, Llc | Low radial force vascular device and method of occlusion |
US9808230B2 (en) | 2014-06-06 | 2017-11-07 | W. L. Gore & Associates, Inc. | Sealing device and delivery system |
US9814466B2 (en) | 2014-08-08 | 2017-11-14 | Covidien Lp | Electrolytic and mechanical detachment for implant delivery systems |
BR112017006248A2 (en) | 2014-09-28 | 2017-12-12 | Cardiokinetix Inc | heart failure treatment apparatus |
JP6601501B2 (en) | 2014-11-04 | 2019-11-13 | ニプロ株式会社 | Catheter device internally provided with a longitudinal inflation element for compressing cancellous bone |
US10278804B2 (en) | 2014-12-12 | 2019-05-07 | Avantec Vascular Corporation | IVC filter retrieval systems with releasable capture feature |
JP6775507B2 (en) | 2014-12-12 | 2020-10-28 | アバンテック バスキュラー コーポレイション | IVC recovery system with intervening support members |
WO2016108241A1 (en) | 2014-12-31 | 2016-07-07 | Endostream Medical Ltd. | Device for restricting blood flow to aneurysms |
US11065019B1 (en) | 2015-02-04 | 2021-07-20 | Route 92 Medical, Inc. | Aspiration catheter systems and methods of use |
US10426497B2 (en) | 2015-07-24 | 2019-10-01 | Route 92 Medical, Inc. | Anchoring delivery system and methods |
EP4137070A1 (en) | 2015-02-04 | 2023-02-22 | Route 92 Medical, Inc. | Rapid aspiration thrombectomy system |
JP7001476B2 (en) | 2015-02-25 | 2022-02-03 | ギャラクシー セラピューティクス インコーポレイテッド | A device for treating an aneurysm |
US9375333B1 (en) | 2015-03-06 | 2016-06-28 | Covidien Lp | Implantable device detachment systems and associated devices and methods |
US10258341B2 (en) | 2015-05-11 | 2019-04-16 | Cook Medical Technologies Llc | Medical assembly and device |
EP3297547B1 (en) | 2015-05-21 | 2023-11-01 | Ecole Polytechnique Fédérale de Lausanne (EPFL) | Device for injection, photoactivation and solidifaction of liquid embolic material in the vascular system or other organic cavities |
EP3302678A4 (en) * | 2015-05-27 | 2019-02-20 | University of Maryland, Baltimore | Apparatus and method for placement of device along wall of a body lumen |
JP2018126173A (en) * | 2015-06-16 | 2018-08-16 | テルモ株式会社 | Medical device and treatment method |
US20170071543A1 (en) * | 2015-09-14 | 2017-03-16 | Biosense Webster (Israel) Ltd. | Convertible basket catheter |
US10478194B2 (en) | 2015-09-23 | 2019-11-19 | Covidien Lp | Occlusive devices |
US10314593B2 (en) | 2015-09-23 | 2019-06-11 | Covidien Lp | Occlusive devices |
US10667896B2 (en) | 2015-11-13 | 2020-06-02 | Cardiac Pacemakers, Inc. | Bioabsorbable left atrial appendage closure with endothelialization promoting surface |
US10716915B2 (en) | 2015-11-23 | 2020-07-21 | Mivi Neuroscience, Inc. | Catheter systems for applying effective suction in remote vessels and thrombectomy procedures facilitated by catheter systems |
EP3386402B1 (en) | 2015-12-07 | 2022-02-23 | Cerus Endovascular Limited | Occlusion device |
WO2017132165A1 (en) | 2016-01-25 | 2017-08-03 | California Institute Of Technology | Non-invasive measurement of intraocular pressure |
US10729447B2 (en) | 2016-02-10 | 2020-08-04 | Microvention, Inc. | Devices for vascular occlusion |
CN108697423A (en) | 2016-02-16 | 2018-10-23 | 伊瑟拉医疗公司 | The part flow arrangement of suction unit and anchoring |
CN113350655B (en) | 2016-02-24 | 2024-03-19 | 禾木(中国)生物工程有限公司 | Nerve vascular catheter with enhanced flexibility |
EP3426181B1 (en) | 2016-03-11 | 2020-10-21 | Cerus Endovascular Limited | Occlusion device |
US10893869B2 (en) | 2016-03-24 | 2021-01-19 | Covidien Lp | Thin wall constructions for vascular flow diversion |
US10813644B2 (en) | 2016-04-01 | 2020-10-27 | Artventive Medical Group, Inc. | Occlusive implant and delivery system |
US11684420B2 (en) | 2016-05-05 | 2023-06-27 | Eximo Medical Ltd. | Apparatus and methods for resecting and/or ablating an undesired tissue |
JP7144404B2 (en) | 2016-05-26 | 2022-09-29 | ナノストラクチャーズ・インコーポレイテッド | Systems and methods for embolic embolization of neural aneurysms |
US10966728B2 (en) | 2016-06-21 | 2021-04-06 | Endostream Medical Ltd. | Medical device for treating vascular malformations |
US10828037B2 (en) | 2016-06-27 | 2020-11-10 | Covidien Lp | Electrolytic detachment with fluid electrical connection |
US10828039B2 (en) | 2016-06-27 | 2020-11-10 | Covidien Lp | Electrolytic detachment for implantable devices |
US11051822B2 (en) | 2016-06-28 | 2021-07-06 | Covidien Lp | Implant detachment with thermal activation |
US10478195B2 (en) | 2016-08-04 | 2019-11-19 | Covidien Lp | Devices, systems, and methods for the treatment of vascular defects |
JP7091320B2 (en) | 2016-10-06 | 2022-06-27 | ミビ・ニューロサイエンス・インコーポレイテッド | Catheter for performing hydraulic displacement and removal of thrombotic clots, as well as hydraulic displacement |
US20180104454A1 (en) * | 2016-10-19 | 2018-04-19 | Daniel E. Walzman | Disc balloon microcatheter |
US10576099B2 (en) | 2016-10-21 | 2020-03-03 | Covidien Lp | Injectable scaffold for treatment of intracranial aneurysms and related technology |
US10548607B2 (en) | 2016-12-05 | 2020-02-04 | Daniel Ezra Walzman | Mesh caps |
EP3558161A4 (en) | 2016-12-22 | 2020-08-12 | Avantec Vascular Corporation | Systems, devices, and methods for retrieval systems having a tether |
CN110381855B (en) | 2017-01-06 | 2023-07-04 | 因赛普特有限责任公司 | Antithrombotic coating for aneurysm treatment devices |
EP4134120A1 (en) | 2017-01-10 | 2023-02-15 | Route 92 Medical, Inc. | Aspiration catheter systems |
CA3054556A1 (en) | 2017-02-23 | 2018-08-30 | DePuy Synthes Products, Inc. | Aneurysm device and delivery system |
US10898330B2 (en) | 2017-03-28 | 2021-01-26 | Edwards Lifesciences Corporation | Positioning, deploying, and retrieving implantable devices |
WO2018200891A1 (en) | 2017-04-27 | 2018-11-01 | Boston Scientific Scimed, Inc. | Occlusive medical device with fabric retention barb |
US10478535B2 (en) | 2017-05-24 | 2019-11-19 | Mivi Neuroscience, Inc. | Suction catheter systems for applying effective aspiration in remote vessels, especially cerebral arteries |
US11234723B2 (en) | 2017-12-20 | 2022-02-01 | Mivi Neuroscience, Inc. | Suction catheter systems for applying effective aspiration in remote vessels, especially cerebral arteries |
US11812971B2 (en) | 2017-08-21 | 2023-11-14 | Cerus Endovascular Limited | Occlusion device |
US10675036B2 (en) | 2017-08-22 | 2020-06-09 | Covidien Lp | Devices, systems, and methods for the treatment of vascular defects |
US11058444B2 (en) | 2017-12-11 | 2021-07-13 | Covidien Lp | Electrically enhanced retrieval of material from vessel lumens |
US10952741B2 (en) | 2017-12-18 | 2021-03-23 | Boston Scientific Scimed, Inc. | Occlusive device with expandable member |
US11490923B2 (en) | 2018-01-05 | 2022-11-08 | Cook Medical Technologies Llc | Device with sharp and blunt regions for removing occlusions |
US11185335B2 (en) | 2018-01-19 | 2021-11-30 | Galaxy Therapeutics Inc. | System for and method of treating aneurysms |
US11413048B2 (en) | 2018-01-19 | 2022-08-16 | Boston Scientific Scimed, Inc. | Occlusive medical device with delivery system |
US10905430B2 (en) | 2018-01-24 | 2021-02-02 | DePuy Synthes Products, Inc. | Aneurysm device and delivery system |
EP3745965A4 (en) | 2018-01-31 | 2021-10-27 | Nanostructures, Inc. | Vascular occlusion devices utilizing thin film nitinol foils |
US11065136B2 (en) | 2018-02-08 | 2021-07-20 | Covidien Lp | Vascular expandable devices |
US11065009B2 (en) | 2018-02-08 | 2021-07-20 | Covidien Lp | Vascular expandable devices |
CA3095844A1 (en) | 2018-05-01 | 2019-11-07 | Incept, Llc | Devices and methods for removing obstructive material from an intravascular site |
US11395665B2 (en) | 2018-05-01 | 2022-07-26 | Incept, Llc | Devices and methods for removing obstructive material, from an intravascular site |
EP3787484A1 (en) | 2018-05-02 | 2021-03-10 | Boston Scientific Scimed Inc. | Occlusive sealing sensor system |
WO2019222382A1 (en) | 2018-05-15 | 2019-11-21 | Boston Scientific Scimed, Inc. | Occlusive medical device with charged polymer coating |
JP2021523793A (en) | 2018-05-17 | 2021-09-09 | ルート92メディカル・インコーポレイテッドRoute 92 Medical, Inc. | Suction catheter system and how to use |
US11058430B2 (en) | 2018-05-25 | 2021-07-13 | DePuy Synthes Products, Inc. | Aneurysm device and delivery system |
US11596412B2 (en) | 2018-05-25 | 2023-03-07 | DePuy Synthes Products, Inc. | Aneurysm device and delivery system |
US10939915B2 (en) | 2018-05-31 | 2021-03-09 | DePuy Synthes Products, Inc. | Aneurysm device and delivery system |
US11123079B2 (en) | 2018-06-08 | 2021-09-21 | Boston Scientific Scimed, Inc. | Occlusive device with actuatable fixation members |
WO2019237004A1 (en) | 2018-06-08 | 2019-12-12 | Boston Scientific Scimed, Inc. | Medical device with occlusive member |
US10874411B2 (en) | 2018-06-22 | 2020-12-29 | Covidien Lp | Electrically enhanced retrieval of material from vessel lumens |
WO2020006451A1 (en) | 2018-06-29 | 2020-01-02 | Avantec Vascular Corporation | Systems and methods for implants and deployment devices |
US11382635B2 (en) | 2018-07-06 | 2022-07-12 | Boston Scientific Scimed, Inc. | Occlusive medical device |
US11517335B2 (en) | 2018-07-06 | 2022-12-06 | Incept, Llc | Sealed neurovascular extendable catheter |
US11471582B2 (en) | 2018-07-06 | 2022-10-18 | Incept, Llc | Vacuum transfer tool for extendable catheter |
US11850398B2 (en) | 2018-08-01 | 2023-12-26 | Trisalus Life Sciences, Inc. | Systems and methods for pressure-facilitated therapeutic agent delivery |
US11051825B2 (en) | 2018-08-08 | 2021-07-06 | DePuy Synthes Products, Inc. | Delivery system for embolic braid |
WO2020041437A1 (en) | 2018-08-21 | 2020-02-27 | Boston Scientific Scimed, Inc. | Projecting member with barb for cardiovascular devices |
US10905432B2 (en) | 2018-08-22 | 2021-02-02 | Covidien Lp | Aneurysm treatment coils and associated systems and methods of use |
US10912569B2 (en) | 2018-08-22 | 2021-02-09 | Covidien Lp | Aneurysm treatment coils and associated systems and methods of use |
US11123077B2 (en) | 2018-09-25 | 2021-09-21 | DePuy Synthes Products, Inc. | Intrasaccular device positioning and deployment system |
US11076861B2 (en) * | 2018-10-12 | 2021-08-03 | DePuy Synthes Products, Inc. | Folded aneurysm treatment device and delivery method |
US11564692B2 (en) | 2018-11-01 | 2023-01-31 | Terumo Corporation | Occlusion systems |
US11406392B2 (en) * | 2018-12-12 | 2022-08-09 | DePuy Synthes Products, Inc. | Aneurysm occluding device for use with coagulating agents |
CN111388044A (en) | 2018-12-17 | 2020-07-10 | 柯惠有限合伙公司 | Occlusion device |
US11272939B2 (en) | 2018-12-18 | 2022-03-15 | DePuy Synthes Products, Inc. | Intrasaccular flow diverter for treating cerebral aneurysms |
CN113260323A (en) | 2019-01-17 | 2021-08-13 | 内流医疗有限公司 | Vascular malformation implant system |
US11134953B2 (en) | 2019-02-06 | 2021-10-05 | DePuy Synthes Products, Inc. | Adhesive cover occluding device for aneurysm treatment |
EP3908209A4 (en) | 2019-03-15 | 2022-10-19 | Sequent Medical, Inc. | Filamentary devices for treatment of vascular defects |
US11317921B2 (en) | 2019-03-15 | 2022-05-03 | Sequent Medical, Inc. | Filamentary devices for treatment of vascular defects |
US11291453B2 (en) | 2019-03-15 | 2022-04-05 | Sequent Medical, Inc. | Filamentary devices having a flexible joint for treatment of vascular defects |
US11612430B2 (en) | 2019-03-19 | 2023-03-28 | Covidien Lp | Electrically enhanced retrieval of material from vessel lumens |
US11337706B2 (en) | 2019-03-27 | 2022-05-24 | DePuy Synthes Products, Inc. | Aneurysm treatment device |
US11766539B2 (en) | 2019-03-29 | 2023-09-26 | Incept, Llc | Enhanced flexibility neurovascular catheter |
US10653425B1 (en) | 2019-05-21 | 2020-05-19 | DePuy Synthes Products, Inc. | Layered braided aneurysm treatment device |
US11278292B2 (en) | 2019-05-21 | 2022-03-22 | DePuy Synthes Products, Inc. | Inverting braided aneurysm treatment system and method |
US11672542B2 (en) | 2019-05-21 | 2023-06-13 | DePuy Synthes Products, Inc. | Aneurysm treatment with pushable ball segment |
US11602350B2 (en) | 2019-12-05 | 2023-03-14 | DePuy Synthes Products, Inc. | Intrasaccular inverting braid with highly flexible fill material |
US11497504B2 (en) | 2019-05-21 | 2022-11-15 | DePuy Synthes Products, Inc. | Aneurysm treatment with pushable implanted braid |
US11413046B2 (en) | 2019-05-21 | 2022-08-16 | DePuy Synthes Products, Inc. | Layered braided aneurysm treatment device |
US11607226B2 (en) | 2019-05-21 | 2023-03-21 | DePuy Synthes Products, Inc. | Layered braided aneurysm treatment device with corrugations |
US11202636B2 (en) | 2019-05-25 | 2021-12-21 | Galaxy Therapeutics Inc. | Systems and methods for treating aneurysms |
US11191558B2 (en) | 2019-06-12 | 2021-12-07 | Covidien Lp | Retrieval of material from corporeal lumens |
US11523838B2 (en) * | 2019-06-12 | 2022-12-13 | Covidien Lp | Retrieval of material from corporeal lumens |
CN114126540A (en) | 2019-07-17 | 2022-03-01 | 波士顿科学医学有限公司 | Continuous covering left atrial appendage implant |
EP3986284A1 (en) | 2019-08-30 | 2022-04-27 | Boston Scientific Scimed, Inc. | Left atrial appendage implant with sealing disk |
EP4027943A4 (en) * | 2019-09-12 | 2023-09-06 | Daniel Ezra Walzmann | Mesh cap for ameliorating outpouchings |
JP2022551988A (en) | 2019-10-15 | 2022-12-14 | インパラティブ、ケア、インク. | Systems and methods for multivariate stroke detection |
US11498165B2 (en) | 2019-11-04 | 2022-11-15 | Covidien Lp | Systems and methods for treating aneurysms |
US11395668B2 (en) | 2019-12-12 | 2022-07-26 | Covidien Lp | Electrically enhanced retrieval of material from vessel lumens |
US11457926B2 (en) | 2019-12-18 | 2022-10-04 | DePuy Synthes Products, Inc. | Implant having an intrasaccular section and intravascular section |
US11638637B2 (en) | 2019-12-18 | 2023-05-02 | Imperative Care, Inc. | Method of removing embolic material with thrombus engagement tool |
JP2023507553A (en) | 2019-12-18 | 2023-02-24 | インパラティブ、ケア、インク. | Methods and systems for treating venous thromboembolism |
US20210315598A1 (en) | 2019-12-18 | 2021-10-14 | Imperative Care, Inc. | Methods of placing large bore aspiration catheters |
US11617865B2 (en) | 2020-01-24 | 2023-04-04 | Mivi Neuroscience, Inc. | Suction catheter systems with designs allowing rapid clearing of clots |
US11406404B2 (en) | 2020-02-20 | 2022-08-09 | Cerus Endovascular Limited | Clot removal distal protection methods |
CA3171899A1 (en) | 2020-03-10 | 2021-09-16 | Imperative Care, Inc. | Enhanced flexibility neurovascular catheter |
WO2021195085A1 (en) | 2020-03-24 | 2021-09-30 | Boston Scientific Scimed, Inc. | Medical system for treating a left atrial appendage |
US11931041B2 (en) | 2020-05-12 | 2024-03-19 | Covidien Lp | Devices, systems, and methods for the treatment of vascular defects |
US11207497B1 (en) | 2020-08-11 | 2021-12-28 | Imperative Care, Inc. | Catheter with enhanced tensile strength |
CN112656477B (en) * | 2020-12-31 | 2023-06-20 | 杭州德诺脑神经医疗科技有限公司 | Aneurysm occlusion device and microcatheter therefor |
US11944374B2 (en) | 2021-08-30 | 2024-04-02 | Covidien Lp | Electrical signals for retrieval of material from vessel lumens |
WO2024018460A1 (en) * | 2022-07-19 | 2024-01-25 | EndoWays LTD. | Guidewire and microcatheter |
Family Cites Families (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US872217A (en) * | 1907-02-04 | 1907-11-26 | Arthur E Bonesteel | Syringe. |
US3557794A (en) * | 1968-07-30 | 1971-01-26 | Us Air Force | Arterial dilation device |
US3996938A (en) * | 1975-07-10 | 1976-12-14 | Clark Iii William T | Expanding mesh catheter |
US4416028A (en) * | 1981-01-22 | 1983-11-22 | Ingvar Eriksson | Blood vessel prosthesis |
IL71191A (en) | 1984-03-08 | 1988-07-31 | Volta Power Belting Ltd | Endless drive belt joining assembly |
US4608965A (en) * | 1985-03-27 | 1986-09-02 | Anspach Jr William E | Endoscope retainer and tissue retracting device |
US4650466A (en) * | 1985-11-01 | 1987-03-17 | Angiobrade Partners | Angioplasty device |
US4710192A (en) | 1985-12-30 | 1987-12-01 | Liotta Domingo S | Diaphragm and method for occlusion of the descending thoracic aorta |
US4744363A (en) * | 1986-07-07 | 1988-05-17 | Hasson Harrith M | Intra-abdominal organ stabilizer, retractor and tissue manipulator |
US4790819A (en) * | 1987-08-24 | 1988-12-13 | American Cyanamid Company | Fibrin clot delivery device and method |
US4921484A (en) * | 1988-07-25 | 1990-05-01 | Cordis Corporation | Mesh balloon catheter device |
US4994071A (en) * | 1989-05-22 | 1991-02-19 | Cordis Corporation | Bifurcating stent apparatus and method |
US5034001A (en) * | 1989-09-08 | 1991-07-23 | Advanced Cardiovascular Systems, Inc. | Method of repairing a damaged blood vessel with an expandable cage catheter |
US5578071A (en) * | 1990-06-11 | 1996-11-26 | Parodi; Juan C. | Aortic graft |
US5100423A (en) * | 1990-08-21 | 1992-03-31 | Medical Engineering & Development Institute, Inc. | Ablation catheter |
IL103445A (en) * | 1991-10-18 | 1997-04-15 | Ethicon Inc | Endoscopic tissue manipulator |
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. |
US5356382A (en) * | 1992-10-23 | 1994-10-18 | Applied Medical Research, Inc. | Percutaneous tract measuring and forming device |
US5334210A (en) | 1993-04-09 | 1994-08-02 | Cook Incorporated | Vascular occlusion assembly |
US5370660A (en) * | 1993-11-01 | 1994-12-06 | Cordis Corporation | Apparatus and method for delivering a vessel plug into the body of a patient |
US5795331A (en) * | 1994-01-24 | 1998-08-18 | Micro Therapeutics, Inc. | Balloon catheter for occluding aneurysms of branch vessels |
ES2340142T3 (en) | 1994-07-08 | 2010-05-31 | Ev3 Inc. | SYSTEM TO CARRY OUT AN INTRAVASCULAR PROCEDURE. |
US5534024A (en) * | 1994-11-04 | 1996-07-09 | Aeroquip Corporation | Intraluminal stenting graft |
US5527282A (en) * | 1994-12-09 | 1996-06-18 | Segal; Jerome | Vascular dilatation device and method |
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 |
US5989242A (en) * | 1995-06-26 | 1999-11-23 | Trimedyne, Inc. | Therapeutic appliance releasing device |
US5749883A (en) * | 1995-08-30 | 1998-05-12 | Halpern; David Marcos | Medical instrument |
US5725521A (en) | 1996-03-29 | 1998-03-10 | Eclipse Surgical Technologies, Inc. | Depth stop apparatus and method for laser-assisted transmyocardial revascularization and other surgical applications |
US5935139A (en) * | 1996-05-03 | 1999-08-10 | Boston Scientific Corporation | System for immobilizing or manipulating an object in a tract |
NL1003497C2 (en) * | 1996-07-03 | 1998-01-07 | Cordis Europ | Catheter with temporary vena-cava filter. |
US5957900A (en) * | 1996-07-10 | 1999-09-28 | Asahi Kogaku Kogyo Kabushiki Kaisha | Treatment accessory for endoscope |
US6059814A (en) * | 1997-06-02 | 2000-05-09 | Medtronic Ave., Inc. | Filter for filtering fluid in a bodily passageway |
US5928260A (en) | 1997-07-10 | 1999-07-27 | Scimed Life Systems, Inc. | Removable occlusion system for aneurysm neck |
GB9715241D0 (en) | 1997-07-18 | 1997-09-24 | Jeffree Martin A | Device for treating aneurysms |
EP1003422B1 (en) | 1997-08-05 | 2006-06-14 | Boston Scientific Limited | Detachable aneurysm neck bridge |
US6063070A (en) | 1997-08-05 | 2000-05-16 | Target Therapeutics, Inc. | Detachable aneurysm neck bridge (II) |
US5916235A (en) * | 1997-08-13 | 1999-06-29 | The Regents Of The University Of California | Apparatus and method for the use of detachable coils in vascular aneurysms and body cavities |
US6086577A (en) | 1997-08-13 | 2000-07-11 | Scimed Life Systems, Inc. | Detachable aneurysm neck bridge (III) |
US6036720A (en) | 1997-12-15 | 2000-03-14 | Target Therapeutics, Inc. | Sheet metal aneurysm neck bridge |
US6545780B1 (en) * | 1998-04-22 | 2003-04-08 | Nippon Telegraph And Telephone Corporation | Wavelength allocation method, a transmission equipment and receiving equipment using this method and a wavelength division multiplex transmission system |
US6168615B1 (en) | 1998-05-04 | 2001-01-02 | Micrus Corporation | Method and apparatus for occlusion and reinforcement of aneurysms |
US6139564A (en) | 1998-06-16 | 2000-10-31 | Target Therapeutics Inc. | Minimally occlusive flow disruptor stent for bridging aneurysm necks |
US5935148A (en) | 1998-06-24 | 1999-08-10 | Target Therapeutics, Inc. | Detachable, varying flexibility, aneurysm neck bridge |
US6432126B1 (en) | 1998-09-30 | 2002-08-13 | C.R. Bard, Inc. | Flexible vascular inducing implants |
US6350270B1 (en) | 2000-01-24 | 2002-02-26 | Scimed Life Systems, Inc. | Aneurysm liner |
US6454780B1 (en) | 2001-06-21 | 2002-09-24 | Scimed Life Systems, Inc. | Aneurysm neck obstruction device |
US20030028209A1 (en) | 2001-07-31 | 2003-02-06 | Clifford Teoh | Expandable body cavity liner device |
-
1997
- 1997-07-10 US US08/891,011 patent/US5928260A/en not_active Expired - Lifetime
-
1998
- 1998-07-07 AT AT98933190T patent/ATE416685T1/en not_active IP Right Cessation
- 1998-07-07 EP EP98933190A patent/EP0996370B1/en not_active Expired - Lifetime
- 1998-07-07 AU AU82905/98A patent/AU8290598A/en not_active Abandoned
- 1998-07-07 ES ES98933190T patent/ES2318871T3/en not_active Expired - Lifetime
- 1998-07-07 DE DE69840328T patent/DE69840328D1/en not_active Expired - Lifetime
- 1998-07-07 CA CA002294707A patent/CA2294707A1/en not_active Abandoned
- 1998-07-07 WO PCT/US1998/013989 patent/WO1999002093A1/en active Application Filing
- 1998-07-07 JP JP2000501697A patent/JP4358987B2/en not_active Expired - Lifetime
-
1999
- 1999-04-28 US US09/301,084 patent/US6344048B1/en not_active Expired - Lifetime
-
2001
- 2001-11-20 US US09/990,978 patent/US6780196B2/en not_active Expired - Fee Related
-
2004
- 2004-08-20 US US10/923,424 patent/US7229461B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP4358987B2 (en) | 2009-11-04 |
EP0996370A1 (en) | 2000-05-03 |
US20020042628A1 (en) | 2002-04-11 |
AU8290598A (en) | 1999-02-08 |
WO1999002093A1 (en) | 1999-01-21 |
ATE416685T1 (en) | 2008-12-15 |
US6344048B1 (en) | 2002-02-05 |
US20050021077A1 (en) | 2005-01-27 |
EP0996370B1 (en) | 2008-12-10 |
US7229461B2 (en) | 2007-06-12 |
US5928260A (en) | 1999-07-27 |
JP2001509413A (en) | 2001-07-24 |
US6780196B2 (en) | 2004-08-24 |
ES2318871T3 (en) | 2009-05-01 |
DE69840328D1 (en) | 2009-01-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5928260A (en) | Removable occlusion system for aneurysm neck | |
US9307998B2 (en) | Methods and devices for the treatment of aneurysms | |
CA2580752C (en) | Vascular occlusion device with an embolic mesh ribbon | |
JP5889902B2 (en) | Implants affecting blood flow in areas of arteriovenous malformations | |
KR101871144B1 (en) | Stent and stent delivery device | |
EP2468348B1 (en) | Thin film metallic devices for plugging aneurysms or vessels | |
US8968352B2 (en) | Expandable body cavity liner device | |
US8398700B2 (en) | Intravascular flow modifier and reinforcement device and deployment system for same | |
US20040172056A1 (en) | Bifurcated aneurysm buttress arrangement | |
US11457926B2 (en) | Implant having an intrasaccular section and intravascular section | |
US11957356B2 (en) | Methods and apparatus for stent assisted aneurysm coiling |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
FZDE | Discontinued |