CA2515786C - Flexible tube for cartridge filter - Google Patents
Flexible tube for cartridge filter Download PDFInfo
- Publication number
- CA2515786C CA2515786C CA2515786A CA2515786A CA2515786C CA 2515786 C CA2515786 C CA 2515786C CA 2515786 A CA2515786 A CA 2515786A CA 2515786 A CA2515786 A CA 2515786A CA 2515786 C CA2515786 C CA 2515786C
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- CA
- Canada
- Prior art keywords
- filter cartridge
- cartridge
- filter
- mandrel
- guidewire
- 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.)
- Expired - Fee Related
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/01—Filters implantable into blood vessels
- A61F2/011—Instruments for their placement or removal
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/01—Filters implantable into blood vessels
- A61F2002/018—Filters implantable into blood vessels made from tubes or sheets of material, e.g. by etching or laser-cutting
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0006—Rounded shapes, e.g. with rounded corners circular
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0008—Rounded shapes, e.g. with rounded corners elliptical or oval
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0028—Shapes in the form of latin or greek characters
- A61F2230/005—Rosette-shaped, e.g. star-shaped
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0073—Quadric-shaped
- A61F2230/008—Quadric-shaped paraboloidal
Abstract
Embolic protection filtering devices and methods of making and using the same.
The present invention may include an embolic protection filtering device including a filter cartridge (12) that is slidable over medical devices, for example, guidewires (16). The filter cartridge may have a filter (22) coupled thereto and may have desirable flexibility and trackability characteristics.
The present invention may include an embolic protection filtering device including a filter cartridge (12) that is slidable over medical devices, for example, guidewires (16). The filter cartridge may have a filter (22) coupled thereto and may have desirable flexibility and trackability characteristics.
Description
FLEXIBLE TUBE FOR CARTRIDGE FILTER
Field of the Invention The present invention pertains to embolic protection filters. More particularly, the present invention pertains to filters coupled to a shaft having desirable flexibility and trackability characteristics.
Back round Heart and vascular disease are major problems in the United States and throughout the world. Conditions such as atherosclerosis result in blood vessels becoming blocked or narrowed. This blockage can result in lack of oxygenation of the heart, which has significant consequences since the heart muscle must be well oxygenated in order to maintain its blood pumping action.
Occluded, stenotic, or narrowed blood vessels may be treated with a number of relatively non-invasive medical procedures including percutaneous transluminal angioplasty (PTA), percutaneous transluminal coronary angioplasty (PTCA), and atherectomy. Angioplasty techniques typically involve the use of a balloon catheter.
The balloon catheter is advanced over a guidewire such that the balloon is positioned adjacent a stenotic lesion. The balloon is then inflated and the restriction of the vessel is opened. During an atherectomy procedure, the stenotic lesion may be mechanically cut away from the blood vessel wall using an atherectomy catheter.
During angioplasty and atherectomy procedures, embolic debris can be separated from the wall of the blood vessel. If this debris enters the circulatory system, it could block other vascular regions including the neural and pulmonary vasculature. During angioplasty procedures, stenotic debris may also break loose due to manipulation of the blood vessel. Because of this debris, a number of devices, termed embolic protection devices, have been developed to filter out this debris.
Brief Summary The present invention pertains to embolic protection filtering devices. In at least some embodiments, the filtering device may include a filter cartridge having a filter coupled thereto. The filter cartridge may be configured to be slidable over a medical device, for example a guidewire, and may have desirable flexibility, trackability, and other features and/or characteristics as described in more detail below.
Brief Description of the Drawings Figure 1 is a perspective view of an example embolic protection filtering device;
Figure 2 is a perspective view of another example filter cartridge;
Figure 3 is a perspective view of another example filter cartridge;
Figure 4 is a perspective view of another example filter cartridge;
Figure 5 is a perspective view of another example filter cartridge;
Figure 6 is a perspective view of an example mandrel;
Figure 7 is a cross-sectional view taken through line 7-7;
Figure 8 is an alternative cross-sectional view taken through line 7-7; and Figure 9 is a perspective view of another example mandrel. .
Detailed Description The following description should be read with reference to the drawings wherein like reference numerals indicate like elements throughout the several views.
The detailed description and drawings illustrate example embodiments of the claimed inventi~n.
Figure 1 illustrates an example embolic protection filtering device 10. Device may include a tubular filter cartridge 12 having a filter 14~ coupled theret~.
Filter cartridge 12 may have desirable flexibility, trackability, and/or other characteristics that allow it to be exchanged over other medical devices such as a guidewire 16 (as shown in Figure 1), a catheter, and the like. Moreover, because a number of the features and characteristics of filter cautridge 12 can be varied, cartridge 12 can be configured to be slidable over essentially any medical device, including virtually all commercially available guidewires and catheters.
Filter cartridge 12 may be comprised of a number of different materials including metals, metal alloys, polymers, or the like, or combinations or mixtures thereof. For example, filter cartridge 12 may be comprised of super elastic, linear elastic, and/or shape memory metals and/or metal alloys. Some examples of suitable metals and metal alloys include stainless steel, such as 304v stainless steel;
such as nickel-titanium alloy, such as nitinol, nickel-chromium alloy, nickel-chromium-iron alloy, cobalt alloy, titanium and/or titanium alloys, or the like; or other suitable material.
Some examples of suitable polymers may include polytetrafluoroethylene (PTFE), ethylene tetrafluoroethylene (ETFE), fluorinated ethylene propylene (FEP), polyurethane, polypropylene (PP), polyvinylchloride (PVC), polyether-ester (for example a polyether-ester elastomer such as ARNITEL~ available from DSM
Engineering Plastics), polyester (for example a polyester elastomer such as HYTRELO available from DuPont), polyamide (for example, DURETHAN~
available from Bayer or CRISTAMID~ available from Elf Atochem), elastomeric polyamides, block polyamide/ethers, polyether block amide (PEBA, for example available under the trade name PEBAX~), silicones, polyethylene, Marlex high-density polyethylene, Marlex low-density polyethylene, linear low density polyethylene (for example REXELL~), polyethylene terephthalate (PET), polyetheretherketone (PEEK), polyimide (PI), polyetherimide (PEI), polyphenylene sulfide (PPS), polyphenylene oxide (PPO), polysulfone, nylon, perfluoro(propyl vinyl ether) (PFA), other suitable materials, or mixtures, combinations, or copolymers thereof. In some embodiments filter cartridge 12 can include a liquid crystal polymer (LCP) blended with other polymers to enhance torqueability. By employing selection of materials and processing techniques, thermoplastic, solvent soluble, and thermosetting variants of these and other materials can be employed to achieve the desired results.
In some embodiments, a coating, for example a lubricious, a hydrophilic, a protective, or other type of coating may be applied over portions or all of filter cartridge 12, or other portions of device 10. Hydrophobic coatings such as fluoropolymers provide a dry lubricity which improves guidewire handling and device exchanges. Lubricious coatings improve steerability and improve lesion crossing capability. Suitable lubricious polymers are well known in the art and may include silicone and the like, hydrophilic polymers such as polyarylene oxides, polyvinylpyrolidones, polyvinylalcohols, hydroxy alkyl cellulosics, algins, saccharides, caprolactones, and the like, and mixtures and combinations thereof.
Hydrophilic polymers may be blended among themselves or with formulated amounts of water insoluble compounds (including some polymers) to yield coatings with suitable lubricity, bonding, and solubility.
In some embodiments, filter cartridge 12 or portions thereof may be doped with, plated with, or otherwise include a radiopaque material. Radiopaque materials are understood to be materials capable of producing a relatively bright image on a fluoroscopy screen or another imaging technique during a medical procedure.
This relatively bright image aids the user of device 10 in determining its location. Some examples of radiopaque materials can include, but are not limited to, gold, platinum, palladium, tantalum, tungsten alloy, plastic material loaded with a radiopaque filler, and the like.
The choice for material composition may help provide filter cartridge 12 with a number of desirable characteristics. For example, material composition may provide filter cartridge 12 with desirable characteristics related to strength, flexibility, trackability, ovalization avoidance, coefficient of friction, axial compression, and the like. In addition or as an alternative to material composition, filter cartridge 12 may vary in other ways to provide filter cartridge 12 with desirable features and characteristics including those listed above. For example, the flexibility of filter cartridge 12 may vary along its length. This feature can be accomplished in a number of different manners, including changing the material composition or altering the inside and/or outside diameters of filter cartridge 12. Additionally, filter cartridge 12 may be comprised of multiple layers of materials and/or multiple sections or regions that are coupled.
In at least some embodiments, filter cartridge 12 may also include one or more notches 17 or other structural features that may, for example, provide filter cartridge 12 with desirable characteristics including those listed above. For example, Figure 1 depicts the one or more notches 17 as defining a helical groove 19 formed in filter cartridge 12. Helical groove 19 can be formed in a number of ways. For example, groove 19 can be cut into filter cartridge 12 using lenown laser or other type of cutting or etching process. A number of other processes can be utilized to form groove 19.
For example, filter cartridge 12 can be molded (e.g., injection molded, etc.) in a manner that defines groove 19. Alternatively, filter cartridge 12 may be comprised of a flattened ribbon that is wound into a shape that defines a tubular filter cartridge 12 having groove 19. It can be appreciated that groove 19 may be defined in a number of additional ways without departing from the spirit of the invention.
The shape, arrangement, and configuration of groove 19 may also vary. For example, groove 19 is illustrated in Figure 1 as being an essentially regular helix extending along the length of cartridge 12. In some embodiments, however, groove 19 may vary. For example, groove 19 may extend along only portions of cartridge 12 or intermittently along sections of cartridge 12. Additionally, the pitch of groove 19 may vary. For example, the pitch of groove 19 may be relatively wide or open at some positions (e.g., near the proximal region of cartridge 12) and relatively close at others (e.g., near the distal region of cartridge 12). Moreover, the direction of groove 19 may vary. For example, groove 19 may wind about cartridge 12 in a clockwise direction, counterclockwise direction, or combinations of directions.
It can be appreciated that groove 19 in alter cartridge 12 may provide device with a number of desirable features. For example, groove 19 may increase the flexibility of cartridge 12. Additionally, groove 19 may increase the trackability of cartridge 12. Trackability is understood to be the ability of one device (e.g., cartridge 12) to "track" or advance over another (e.g., guidewire 16). According to this embodiment, groove 19 may increase trackability, for example, by making cartridge 12 more adaptable or more compliant so that it may more easily track over a device (i.e., guidewire 16) that may be significantly contorted when positioned in the tortuous vasculature.
As stated above, some of the other components of device 10 may include filter 14. Filter 14 may be adapted to operate between a first generally collapsed configuration and a second generally expanded configuration for collecting debris in a body lumen. In some embodiments, filter 14 can be delivered to an appropriate intravascular location, for example "downstream" of an intravascular lesion, using an appropriate filter delivery and/or retrieval device 18. Similarly, alter 12 can be removed from the vasculaturc at the desired time with device 1 ~ or another suitable device.
Filter 14 may include a alter frame 20 and a filter membrane or fabric 22 coupled to filter frame 20. Frame 20 may take the form of any one of a number of appropriate shapes and configurations. For example, frame 20 may comprise a generally circular filter mouth or loop, which may defines the primary opening for blood to travel into and be filtered by filter 14. However, essentially any appropriate shape or configuration may be utilized without departing from the spirit of the invention.
Frame 20 may be comprised of any appropriate material. For example, frame may be comprised of a "self expanding" shape-memory material such as nickel-titanium alloy (to bias filter 14 to be in the second expanded configuration).
Alternatively, frame 20 may be comprised of essentially any appropriate metal, metal-alloy, polymer, combinations thereof, and the like including any of the materials described herein.
Field of the Invention The present invention pertains to embolic protection filters. More particularly, the present invention pertains to filters coupled to a shaft having desirable flexibility and trackability characteristics.
Back round Heart and vascular disease are major problems in the United States and throughout the world. Conditions such as atherosclerosis result in blood vessels becoming blocked or narrowed. This blockage can result in lack of oxygenation of the heart, which has significant consequences since the heart muscle must be well oxygenated in order to maintain its blood pumping action.
Occluded, stenotic, or narrowed blood vessels may be treated with a number of relatively non-invasive medical procedures including percutaneous transluminal angioplasty (PTA), percutaneous transluminal coronary angioplasty (PTCA), and atherectomy. Angioplasty techniques typically involve the use of a balloon catheter.
The balloon catheter is advanced over a guidewire such that the balloon is positioned adjacent a stenotic lesion. The balloon is then inflated and the restriction of the vessel is opened. During an atherectomy procedure, the stenotic lesion may be mechanically cut away from the blood vessel wall using an atherectomy catheter.
During angioplasty and atherectomy procedures, embolic debris can be separated from the wall of the blood vessel. If this debris enters the circulatory system, it could block other vascular regions including the neural and pulmonary vasculature. During angioplasty procedures, stenotic debris may also break loose due to manipulation of the blood vessel. Because of this debris, a number of devices, termed embolic protection devices, have been developed to filter out this debris.
Brief Summary The present invention pertains to embolic protection filtering devices. In at least some embodiments, the filtering device may include a filter cartridge having a filter coupled thereto. The filter cartridge may be configured to be slidable over a medical device, for example a guidewire, and may have desirable flexibility, trackability, and other features and/or characteristics as described in more detail below.
Brief Description of the Drawings Figure 1 is a perspective view of an example embolic protection filtering device;
Figure 2 is a perspective view of another example filter cartridge;
Figure 3 is a perspective view of another example filter cartridge;
Figure 4 is a perspective view of another example filter cartridge;
Figure 5 is a perspective view of another example filter cartridge;
Figure 6 is a perspective view of an example mandrel;
Figure 7 is a cross-sectional view taken through line 7-7;
Figure 8 is an alternative cross-sectional view taken through line 7-7; and Figure 9 is a perspective view of another example mandrel. .
Detailed Description The following description should be read with reference to the drawings wherein like reference numerals indicate like elements throughout the several views.
The detailed description and drawings illustrate example embodiments of the claimed inventi~n.
Figure 1 illustrates an example embolic protection filtering device 10. Device may include a tubular filter cartridge 12 having a filter 14~ coupled theret~.
Filter cartridge 12 may have desirable flexibility, trackability, and/or other characteristics that allow it to be exchanged over other medical devices such as a guidewire 16 (as shown in Figure 1), a catheter, and the like. Moreover, because a number of the features and characteristics of filter cautridge 12 can be varied, cartridge 12 can be configured to be slidable over essentially any medical device, including virtually all commercially available guidewires and catheters.
Filter cartridge 12 may be comprised of a number of different materials including metals, metal alloys, polymers, or the like, or combinations or mixtures thereof. For example, filter cartridge 12 may be comprised of super elastic, linear elastic, and/or shape memory metals and/or metal alloys. Some examples of suitable metals and metal alloys include stainless steel, such as 304v stainless steel;
such as nickel-titanium alloy, such as nitinol, nickel-chromium alloy, nickel-chromium-iron alloy, cobalt alloy, titanium and/or titanium alloys, or the like; or other suitable material.
Some examples of suitable polymers may include polytetrafluoroethylene (PTFE), ethylene tetrafluoroethylene (ETFE), fluorinated ethylene propylene (FEP), polyurethane, polypropylene (PP), polyvinylchloride (PVC), polyether-ester (for example a polyether-ester elastomer such as ARNITEL~ available from DSM
Engineering Plastics), polyester (for example a polyester elastomer such as HYTRELO available from DuPont), polyamide (for example, DURETHAN~
available from Bayer or CRISTAMID~ available from Elf Atochem), elastomeric polyamides, block polyamide/ethers, polyether block amide (PEBA, for example available under the trade name PEBAX~), silicones, polyethylene, Marlex high-density polyethylene, Marlex low-density polyethylene, linear low density polyethylene (for example REXELL~), polyethylene terephthalate (PET), polyetheretherketone (PEEK), polyimide (PI), polyetherimide (PEI), polyphenylene sulfide (PPS), polyphenylene oxide (PPO), polysulfone, nylon, perfluoro(propyl vinyl ether) (PFA), other suitable materials, or mixtures, combinations, or copolymers thereof. In some embodiments filter cartridge 12 can include a liquid crystal polymer (LCP) blended with other polymers to enhance torqueability. By employing selection of materials and processing techniques, thermoplastic, solvent soluble, and thermosetting variants of these and other materials can be employed to achieve the desired results.
In some embodiments, a coating, for example a lubricious, a hydrophilic, a protective, or other type of coating may be applied over portions or all of filter cartridge 12, or other portions of device 10. Hydrophobic coatings such as fluoropolymers provide a dry lubricity which improves guidewire handling and device exchanges. Lubricious coatings improve steerability and improve lesion crossing capability. Suitable lubricious polymers are well known in the art and may include silicone and the like, hydrophilic polymers such as polyarylene oxides, polyvinylpyrolidones, polyvinylalcohols, hydroxy alkyl cellulosics, algins, saccharides, caprolactones, and the like, and mixtures and combinations thereof.
Hydrophilic polymers may be blended among themselves or with formulated amounts of water insoluble compounds (including some polymers) to yield coatings with suitable lubricity, bonding, and solubility.
In some embodiments, filter cartridge 12 or portions thereof may be doped with, plated with, or otherwise include a radiopaque material. Radiopaque materials are understood to be materials capable of producing a relatively bright image on a fluoroscopy screen or another imaging technique during a medical procedure.
This relatively bright image aids the user of device 10 in determining its location. Some examples of radiopaque materials can include, but are not limited to, gold, platinum, palladium, tantalum, tungsten alloy, plastic material loaded with a radiopaque filler, and the like.
The choice for material composition may help provide filter cartridge 12 with a number of desirable characteristics. For example, material composition may provide filter cartridge 12 with desirable characteristics related to strength, flexibility, trackability, ovalization avoidance, coefficient of friction, axial compression, and the like. In addition or as an alternative to material composition, filter cartridge 12 may vary in other ways to provide filter cartridge 12 with desirable features and characteristics including those listed above. For example, the flexibility of filter cartridge 12 may vary along its length. This feature can be accomplished in a number of different manners, including changing the material composition or altering the inside and/or outside diameters of filter cartridge 12. Additionally, filter cartridge 12 may be comprised of multiple layers of materials and/or multiple sections or regions that are coupled.
In at least some embodiments, filter cartridge 12 may also include one or more notches 17 or other structural features that may, for example, provide filter cartridge 12 with desirable characteristics including those listed above. For example, Figure 1 depicts the one or more notches 17 as defining a helical groove 19 formed in filter cartridge 12. Helical groove 19 can be formed in a number of ways. For example, groove 19 can be cut into filter cartridge 12 using lenown laser or other type of cutting or etching process. A number of other processes can be utilized to form groove 19.
For example, filter cartridge 12 can be molded (e.g., injection molded, etc.) in a manner that defines groove 19. Alternatively, filter cartridge 12 may be comprised of a flattened ribbon that is wound into a shape that defines a tubular filter cartridge 12 having groove 19. It can be appreciated that groove 19 may be defined in a number of additional ways without departing from the spirit of the invention.
The shape, arrangement, and configuration of groove 19 may also vary. For example, groove 19 is illustrated in Figure 1 as being an essentially regular helix extending along the length of cartridge 12. In some embodiments, however, groove 19 may vary. For example, groove 19 may extend along only portions of cartridge 12 or intermittently along sections of cartridge 12. Additionally, the pitch of groove 19 may vary. For example, the pitch of groove 19 may be relatively wide or open at some positions (e.g., near the proximal region of cartridge 12) and relatively close at others (e.g., near the distal region of cartridge 12). Moreover, the direction of groove 19 may vary. For example, groove 19 may wind about cartridge 12 in a clockwise direction, counterclockwise direction, or combinations of directions.
It can be appreciated that groove 19 in alter cartridge 12 may provide device with a number of desirable features. For example, groove 19 may increase the flexibility of cartridge 12. Additionally, groove 19 may increase the trackability of cartridge 12. Trackability is understood to be the ability of one device (e.g., cartridge 12) to "track" or advance over another (e.g., guidewire 16). According to this embodiment, groove 19 may increase trackability, for example, by making cartridge 12 more adaptable or more compliant so that it may more easily track over a device (i.e., guidewire 16) that may be significantly contorted when positioned in the tortuous vasculature.
As stated above, some of the other components of device 10 may include filter 14. Filter 14 may be adapted to operate between a first generally collapsed configuration and a second generally expanded configuration for collecting debris in a body lumen. In some embodiments, filter 14 can be delivered to an appropriate intravascular location, for example "downstream" of an intravascular lesion, using an appropriate filter delivery and/or retrieval device 18. Similarly, alter 12 can be removed from the vasculaturc at the desired time with device 1 ~ or another suitable device.
Filter 14 may include a alter frame 20 and a filter membrane or fabric 22 coupled to filter frame 20. Frame 20 may take the form of any one of a number of appropriate shapes and configurations. For example, frame 20 may comprise a generally circular filter mouth or loop, which may defines the primary opening for blood to travel into and be filtered by filter 14. However, essentially any appropriate shape or configuration may be utilized without departing from the spirit of the invention.
Frame 20 may be comprised of any appropriate material. For example, frame may be comprised of a "self expanding" shape-memory material such as nickel-titanium alloy (to bias filter 14 to be in the second expanded configuration).
Alternatively, frame 20 may be comprised of essentially any appropriate metal, metal-alloy, polymer, combinations thereof, and the like including any of the materials described herein.
Filter membrane 22 may be comprised of any appropriate material such as a polymer and may be drilled (for example, formed by known laser techniques) or otherwise include at least one opening 24. Holes or openings 24 can be sized to allow blood flow therethrough but restrict flow of debris or emboli floating in the body lumen or cavity.
One or more struts 26 may extend between frame 20 and filter cartridge 12. In some embodiments, struts 26 can be coupled to filter cartridge 12 by a coupling 28, for example a heat-shrink tube, a crimp fitting, and the like. Alternatively, struts 26 may be coupled to filter cartridge 12 by one or more windings of struts 26 about filter cartridge 12.
As stated above, at least some embodiments of device 10 include guidewire 16, over which filter cartridge 12 may be slidably disposed. Guidewire 16 may include a distal stop 30. Distal stop 30 may define a distal-most position along guidewire 16 may be advanced to. In addition, guidewire 16 may also include a proximal stop 32. Stops 30/32 may be arranged so that filter cartridge 12 can be positioned between them. A deployment sheath 34 may also be slidably disposed over guidewire 16. Sheath 34 may be used, for example, to help advance filter cartridge 12 to the appropriate location along guidewire 16.
Although Figure 1 illustrates filter cartridge 12 being slidably disposed over guidewire 16, the invention is not intended to be limited to use with only guidewires 16. It can be appreciated that the device could be any intravascular device or be any device designed to pass through an opening or body lumen. For example, the device may comprise a catheter (e.g., therapeutic, diagnostic, or guide catheter), endoscopic device, laproscopic device, an embolic protection device, or any other suitable device.
The use of filter cartridge 12 may include a number of steps. For example, filter cartridge 12 may be coupled to guidewire 16, for example by disposing cartridge between stops 30/32, by crimping cartridge 12 onto guidewire 16, by using other suitable mechanical connections, or by any other suitable means. In some embodiments, cartridge 12 and guidewire 16 may be coupled before guidewire 16 is advanced through a blood vessel. Alternatively, guidewire 16 may be positioned in a blood vessel and then cartridge 12 may be advanced over guidewire 16 to a suitable target location and filter 14 may be expanded. Advancing cartridge 12 over guidewire 16 may include the use of delivery sheath 18 and the expansion of filter 14 may include advancing deployment sheath 34 into contact or another suitable arrangement to expand filter 14. Sheath 18 and/or sheath 34 may be proximally retracted and another diagnostic or therapeutic device (e.g., balloon catheter, atherectomy catheter, and the like) may be advanced over guidewire 16. The expanded filter 14 may then be used to filter debris that may be generated by the therapeutic device.
Figure 2 is a perspective view of another example filter cartridge 112.
Cartridge 112 is similar to cartridge 12, expect that the one or more notches define a plurality of slots 119 within cartridge 112. Slots 119 may be formed according to any of the methods described herein or any other appropriate process.
The shape, arrangement, and number of slots 119 may vary without departing from the spirit of the invention. For example, slots 119 may be generally rectangular in shape, square in shape, rounded in shape, or have any other appropriate shape.
Additionally, slots 119 may be disposed at varying positions along cartridge 112 and may vary in length so as to span, for example, about 45 to about 320 degrees around the circumference of cartridge 112 or more or less, depending the desired length. In some embodiments, a bridge or other tying support (not shown) may be longitudinally disposed along cartridge 112, for example along the inside surface, to help maintain the structural integrity of cartridge 112. This structural feature may be desirable when slots 119 span larger portions of cartridge 112. ~ther variations for the configurations and arrangements of slots 119 may include any of the variations attributed to any of the notches and/or cartridges described herein.
Figure 3 is a perspective view of another example filter cartridge 212.
Cartridge 212 is similar to the other cartridges disclosed herein, expect that it includes a series of fibers arranged in a braid 236. Eraid 236 may be adapted and configured to provide cartridge 212 with desirable flexibility and trackability characteristics including those described above. In some embodiments, braid 236 may be disposed on the outside surface (as shown in Figure 3) or the inside surface (not shown) of a support structure or tube 238. Alternatively, cartridge 212 may be comprised of braid 236 without the need for support tube 238. According to this embodiment, cartridge may be manufactured, for example, by disposing braid 238 on a mold or mandrel to define cartridge 212, and then disassociating the defined filter cartridge 212 from the mold.
The arrangement and configuration of braid 236 may vary. For example, braid 236 may have a uniform or regular distribution along cartridge 212.
Alternatively, the pattern may be irregular or intermittent. The direction, closeness or tightness, and _7_ general shape may also vary. Moreover, additional braids or layers may be disposed on braid 236. For example, cartridge 212 may include a plurality of braids 236 disposed on each other and may include other, non-braided layers disposed therebetween.
Figure 4 is a perspective view of another example filter cartridge 312.
Cartridge 312 is similar to other cartridges disclosed herein, except that it includes a coil 340. It can be appreciated that coil 340 may provide cartridge 312 with desirable flexibility characteristics. For example, including coil 340 or a similar coiled structure may increase the flexibility of cartridge 312. Additionally, coil 340 may enhance the trackability of filter cartridge 312. In some embodiments, coil 340 may comprise cartridge 312 thereby obviating the need for any support tube or structure.
Other embodiments, however, may include a support structure similar to support tube 23~ illustrated in Figure 3.
Figure 5 is a perspective view of another example filter cartridge 412.
Cartridge 412 is similar to cartridge 312, except that a portion of coil 440 is "unwound" or otherwise configured to define filter frame 420 of filter 414.
According to this embodiment, cartridge 412 and filter frame 420 may be integral with one another or otherwise formed of the same structure. This structural feature may be desirable for a number of reasons. For example, cartridge 412 may cost less to manufacture by decreasing the number of separate structural elements and by decreasing some of the processing steps (e.g., attaching together separate elements).
Figure 6 is an example mold or mandrel 542 that may be used in the manufacturing of filter cartridges, including those described herein and other embodiments. Mandrel 542 may include a base or base surface 544 and may include one or more projections 546 extending therefrom. Mandrel 542 may be comprised of any appropriate material, including those disclosed herein. In some embodiments, mandrel 542 may be comprised of a wax or other soluble substance that can be readily dissolved following the molding procedure. This feature may be desirable by enhancing the ability to release a newly molded filter cartridge from mandrel 542.
The shape, size, and arrangement of projections 546 may also vary. In some embodiments, a plurality of rounded projections 546 may be essentially uniformly distributed throughout mandrel 542. Alternatively, projections 546 may have a square or other shape and may be irregularly distributed. Additionally, a variety of shapes, sizes, and distributions may be utilized along mandrel 542.
_g_ Molding of a filter cartridge with mandrel 542 may include any of a number of known molding techniques. For example, manufacturing may include dip molding, spray molding, injection molding, and the like. These manufacturing techniques may generally include disposing a filter cartridge material (not shown) adjacent mandrel 542 so as to define a filter cartridge. The newly defined cartridge may be disassociated from mandrel 542 and the flexibility thereof may be altered. For example, the flexibility may be altered by forming one or more notches or slots therein, by forming a spiral groove therein, etc. as described above. Other ' manufacturing steps may include coupling a filter, for example filter 14, to the newly molded filter cartridge.
Figures 7 sectional and 8 illustrate cross-sectional views of mandrel 542 where example filter cartridges have been molded thereon. For example, Figure 7 illustrates filter cartridge 512 molded on mandrel 542. According to this embodiment, the shape of cartridge S 12 may include a plurality of projections 548a/b along both its inside surface 550 and its outside surface 552, respectively, that generally conform to the shape of mandrel 542. In some other embodiments, an alternative filter cartridge 612 may be molded as shown in Figure 8. Cartridge 612 may be configured or otherwise thickened so that projections are 648a may be seen on inside surface 650, but not on outside surface 652.
Another example mandrel 742 is illustrated in Figure 9. Mandrel 742 is essentially the same in form and function as mandrel 542, except that it includes one or more dimples 746 extending inward from a base member 744. Mandi°el 742 may be used to mold filter cartridges in a manner similar to what is described above. For example, molding a filter cartridge using mandrel 742 may result in a filter cartridge with dimples similar to dimples 746.
It should be understood that this disclosure is, in many respects, only illustrative. Changes may be made in details, particularly in matters of shape, size, and arrangement of steps without exceeding the scope of the invention. The invention's scope is, of course, defined in the language in which the appended claims are expressed.
One or more struts 26 may extend between frame 20 and filter cartridge 12. In some embodiments, struts 26 can be coupled to filter cartridge 12 by a coupling 28, for example a heat-shrink tube, a crimp fitting, and the like. Alternatively, struts 26 may be coupled to filter cartridge 12 by one or more windings of struts 26 about filter cartridge 12.
As stated above, at least some embodiments of device 10 include guidewire 16, over which filter cartridge 12 may be slidably disposed. Guidewire 16 may include a distal stop 30. Distal stop 30 may define a distal-most position along guidewire 16 may be advanced to. In addition, guidewire 16 may also include a proximal stop 32. Stops 30/32 may be arranged so that filter cartridge 12 can be positioned between them. A deployment sheath 34 may also be slidably disposed over guidewire 16. Sheath 34 may be used, for example, to help advance filter cartridge 12 to the appropriate location along guidewire 16.
Although Figure 1 illustrates filter cartridge 12 being slidably disposed over guidewire 16, the invention is not intended to be limited to use with only guidewires 16. It can be appreciated that the device could be any intravascular device or be any device designed to pass through an opening or body lumen. For example, the device may comprise a catheter (e.g., therapeutic, diagnostic, or guide catheter), endoscopic device, laproscopic device, an embolic protection device, or any other suitable device.
The use of filter cartridge 12 may include a number of steps. For example, filter cartridge 12 may be coupled to guidewire 16, for example by disposing cartridge between stops 30/32, by crimping cartridge 12 onto guidewire 16, by using other suitable mechanical connections, or by any other suitable means. In some embodiments, cartridge 12 and guidewire 16 may be coupled before guidewire 16 is advanced through a blood vessel. Alternatively, guidewire 16 may be positioned in a blood vessel and then cartridge 12 may be advanced over guidewire 16 to a suitable target location and filter 14 may be expanded. Advancing cartridge 12 over guidewire 16 may include the use of delivery sheath 18 and the expansion of filter 14 may include advancing deployment sheath 34 into contact or another suitable arrangement to expand filter 14. Sheath 18 and/or sheath 34 may be proximally retracted and another diagnostic or therapeutic device (e.g., balloon catheter, atherectomy catheter, and the like) may be advanced over guidewire 16. The expanded filter 14 may then be used to filter debris that may be generated by the therapeutic device.
Figure 2 is a perspective view of another example filter cartridge 112.
Cartridge 112 is similar to cartridge 12, expect that the one or more notches define a plurality of slots 119 within cartridge 112. Slots 119 may be formed according to any of the methods described herein or any other appropriate process.
The shape, arrangement, and number of slots 119 may vary without departing from the spirit of the invention. For example, slots 119 may be generally rectangular in shape, square in shape, rounded in shape, or have any other appropriate shape.
Additionally, slots 119 may be disposed at varying positions along cartridge 112 and may vary in length so as to span, for example, about 45 to about 320 degrees around the circumference of cartridge 112 or more or less, depending the desired length. In some embodiments, a bridge or other tying support (not shown) may be longitudinally disposed along cartridge 112, for example along the inside surface, to help maintain the structural integrity of cartridge 112. This structural feature may be desirable when slots 119 span larger portions of cartridge 112. ~ther variations for the configurations and arrangements of slots 119 may include any of the variations attributed to any of the notches and/or cartridges described herein.
Figure 3 is a perspective view of another example filter cartridge 212.
Cartridge 212 is similar to the other cartridges disclosed herein, expect that it includes a series of fibers arranged in a braid 236. Eraid 236 may be adapted and configured to provide cartridge 212 with desirable flexibility and trackability characteristics including those described above. In some embodiments, braid 236 may be disposed on the outside surface (as shown in Figure 3) or the inside surface (not shown) of a support structure or tube 238. Alternatively, cartridge 212 may be comprised of braid 236 without the need for support tube 238. According to this embodiment, cartridge may be manufactured, for example, by disposing braid 238 on a mold or mandrel to define cartridge 212, and then disassociating the defined filter cartridge 212 from the mold.
The arrangement and configuration of braid 236 may vary. For example, braid 236 may have a uniform or regular distribution along cartridge 212.
Alternatively, the pattern may be irregular or intermittent. The direction, closeness or tightness, and _7_ general shape may also vary. Moreover, additional braids or layers may be disposed on braid 236. For example, cartridge 212 may include a plurality of braids 236 disposed on each other and may include other, non-braided layers disposed therebetween.
Figure 4 is a perspective view of another example filter cartridge 312.
Cartridge 312 is similar to other cartridges disclosed herein, except that it includes a coil 340. It can be appreciated that coil 340 may provide cartridge 312 with desirable flexibility characteristics. For example, including coil 340 or a similar coiled structure may increase the flexibility of cartridge 312. Additionally, coil 340 may enhance the trackability of filter cartridge 312. In some embodiments, coil 340 may comprise cartridge 312 thereby obviating the need for any support tube or structure.
Other embodiments, however, may include a support structure similar to support tube 23~ illustrated in Figure 3.
Figure 5 is a perspective view of another example filter cartridge 412.
Cartridge 412 is similar to cartridge 312, except that a portion of coil 440 is "unwound" or otherwise configured to define filter frame 420 of filter 414.
According to this embodiment, cartridge 412 and filter frame 420 may be integral with one another or otherwise formed of the same structure. This structural feature may be desirable for a number of reasons. For example, cartridge 412 may cost less to manufacture by decreasing the number of separate structural elements and by decreasing some of the processing steps (e.g., attaching together separate elements).
Figure 6 is an example mold or mandrel 542 that may be used in the manufacturing of filter cartridges, including those described herein and other embodiments. Mandrel 542 may include a base or base surface 544 and may include one or more projections 546 extending therefrom. Mandrel 542 may be comprised of any appropriate material, including those disclosed herein. In some embodiments, mandrel 542 may be comprised of a wax or other soluble substance that can be readily dissolved following the molding procedure. This feature may be desirable by enhancing the ability to release a newly molded filter cartridge from mandrel 542.
The shape, size, and arrangement of projections 546 may also vary. In some embodiments, a plurality of rounded projections 546 may be essentially uniformly distributed throughout mandrel 542. Alternatively, projections 546 may have a square or other shape and may be irregularly distributed. Additionally, a variety of shapes, sizes, and distributions may be utilized along mandrel 542.
_g_ Molding of a filter cartridge with mandrel 542 may include any of a number of known molding techniques. For example, manufacturing may include dip molding, spray molding, injection molding, and the like. These manufacturing techniques may generally include disposing a filter cartridge material (not shown) adjacent mandrel 542 so as to define a filter cartridge. The newly defined cartridge may be disassociated from mandrel 542 and the flexibility thereof may be altered. For example, the flexibility may be altered by forming one or more notches or slots therein, by forming a spiral groove therein, etc. as described above. Other ' manufacturing steps may include coupling a filter, for example filter 14, to the newly molded filter cartridge.
Figures 7 sectional and 8 illustrate cross-sectional views of mandrel 542 where example filter cartridges have been molded thereon. For example, Figure 7 illustrates filter cartridge 512 molded on mandrel 542. According to this embodiment, the shape of cartridge S 12 may include a plurality of projections 548a/b along both its inside surface 550 and its outside surface 552, respectively, that generally conform to the shape of mandrel 542. In some other embodiments, an alternative filter cartridge 612 may be molded as shown in Figure 8. Cartridge 612 may be configured or otherwise thickened so that projections are 648a may be seen on inside surface 650, but not on outside surface 652.
Another example mandrel 742 is illustrated in Figure 9. Mandrel 742 is essentially the same in form and function as mandrel 542, except that it includes one or more dimples 746 extending inward from a base member 744. Mandi°el 742 may be used to mold filter cartridges in a manner similar to what is described above. For example, molding a filter cartridge using mandrel 742 may result in a filter cartridge with dimples similar to dimples 746.
It should be understood that this disclosure is, in many respects, only illustrative. Changes may be made in details, particularly in matters of shape, size, and arrangement of steps without exceeding the scope of the invention. The invention's scope is, of course, defined in the language in which the appended claims are expressed.
Claims (21)
1. A medical device, comprising:
an elongate shaft having a proximal region and a distal region;
the shaft including one or more stops coupled adjacent the distal region;
a tubular cartridge slidably disposed over the shaft;
the tubular cartridge including one or more notches defined therein; and a filter coupled to the cartridge wherein the one or more notches include a spiral groove cut in the tubular cartridge.
an elongate shaft having a proximal region and a distal region;
the shaft including one or more stops coupled adjacent the distal region;
a tubular cartridge slidably disposed over the shaft;
the tubular cartridge including one or more notches defined therein; and a filter coupled to the cartridge wherein the one or more notches include a spiral groove cut in the tubular cartridge.
2. The medical device of claim 1, wherein the shaft is a guidewire.
3. The medical device of claim 2, wherein the guidewire includes one or more stops coupled thereto.
4. The medical device of claim 1, wherein tubular cartridge comprises a polymer.
5. The medical device of claim 1, further comprising a deployment sheath slidably disposed over the shaft.
6. The medical device of claim 5, further comprising a delivery sheath slidably disposed over the shaft.
7. An embolic protection filtering device, comprising:
an elongate guidewire;
a tubular filter cartridge slidably disposed over the guidewire, the cartridge having a length and a spiraling groove defined along at least a portion of the length; and an embolic protection filter coupled to the filter cartridge.
an elongate guidewire;
a tubular filter cartridge slidably disposed over the guidewire, the cartridge having a length and a spiraling groove defined along at least a portion of the length; and an embolic protection filter coupled to the filter cartridge.
8. The filtering device of claim 7, wherein the tubular filter cartridge comprises a polymer.
9. The filtering device of claim 7 , wherein tubular filter cartridge includes a proximal region and a distal region, and wherein the distal region is more flexible than the proximal region.
10. An embolic protection filtering device, comprising:
an elongate guidewire;
a tubular filter cartridge slidably disposed over the guidewire, the cartridge having a length and including a coil disposed along at least a portion of the length; and an embolic protection filter coupled to the filter cartridge.
an elongate guidewire;
a tubular filter cartridge slidably disposed over the guidewire, the cartridge having a length and including a coil disposed along at least a portion of the length; and an embolic protection filter coupled to the filter cartridge.
11. The filtering device of claim 10, wherein the guidewire includes one or more stops coupled thereto.
12. The filtering device of claim 10, wherein the filter cartridge comprises polymer.
13. The filtering device of claim 10, wherein the filter cartridge comprises a metal.
14. The filtering device of claim 10, wherein the filter includes a filter frame, and wherein the filter frame is defined by a portion of the coil.
15. A method of manufacturing an embolic protection filtering device, comprising the steps of:
providing a mandrel having an outer surface;
disposing a filter cartridge material on the outer surface of the mandrel to define a filter cartridge;
altering the flexibility of the filter cartridge; and coupling a filter to the filter cartridge.
providing a mandrel having an outer surface;
disposing a filter cartridge material on the outer surface of the mandrel to define a filter cartridge;
altering the flexibility of the filter cartridge; and coupling a filter to the filter cartridge.
16. The method of claim 15, wherein outer surface of the mandrel includes a plurality of projections, and wherein the step of disposing a filter cartridge material on the outer surface of the mandrel to define a filter cartridge includes defining a filter cartridge with a plurality of projections.
17. The method of claim 15, wherein outer surface of the mandrel includes a plurality of dimples, and wherein the step of disposing a filter cartridge material on the outer surface of the inandre1 to define a filter cartridge includes defining a filter cartridge with a plurality of dimples.
18. The method of claim 15, wherein the step of disposing a filter cartridge material on the outer surface of the mandrel to define a filter cartridge includes spray molding the filter cartridge material onto the mandrel.
19. The method of claim 15, wherein the step of disposing a filter cartridge material on the outer surface of the mandrel to define a filter cartridge includes dip molding the mandrel into the filter cartridge material.
20. The method of claim 15, wherein the step of altering the flexibility of the filter cartridge includes forming a spiral groove in the filter cartridge.
21. The method of claim 15, wherein the step of altering the flexibility of the filter cartridge include forming one or more slots in the filter cartridge.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/373,482 US6878291B2 (en) | 2003-02-24 | 2003-02-24 | Flexible tube for cartridge filter |
| US10/373,482 | 2003-02-24 | ||
| PCT/US2004/003993 WO2004075786A1 (en) | 2003-02-24 | 2004-02-12 | Flexible tube for cartridge filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2515786A1 CA2515786A1 (en) | 2004-09-10 |
| CA2515786C true CA2515786C (en) | 2012-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2515786A Expired - Fee Related CA2515786C (en) | 2003-02-24 | 2004-02-12 | Flexible tube for cartridge filter |
Country Status (5)
| Country | Link |
|---|---|
| US (4) | US6878291B2 (en) |
| EP (1) | EP1596757A1 (en) |
| JP (1) | JP2006518636A (en) |
| CA (1) | CA2515786C (en) |
| WO (1) | WO2004075786A1 (en) |
Families Citing this family (74)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0934092A4 (en) | 1997-03-06 | 2008-03-26 | Boston Scient Scimed Inc | Distal protection device and method |
| US6676682B1 (en) * | 1997-05-08 | 2004-01-13 | Scimed Life Systems, Inc. | Percutaneous catheter and guidewire having filter and medical device deployment capabilities |
| US6855123B2 (en) | 2002-08-02 | 2005-02-15 | Flow Cardia, Inc. | Therapeutic ultrasound system |
| JP2003505215A (en) | 1999-07-30 | 2003-02-12 | インセプト エルエルシー | Vascular filter with joint area and method of use in ascending aorta |
| US6951570B2 (en) * | 2001-07-02 | 2005-10-04 | Rubicon Medical, Inc. | Methods, systems, and devices for deploying a filter from a filter device |
| US6962598B2 (en) * | 2001-07-02 | 2005-11-08 | Rubicon Medical, Inc. | Methods, systems, and devices for providing embolic protection |
| US20030078614A1 (en) * | 2001-10-18 | 2003-04-24 | Amr Salahieh | Vascular embolic filter devices and methods of use therefor |
| 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 |
| US9955994B2 (en) | 2002-08-02 | 2018-05-01 | Flowcardia, Inc. | Ultrasound catheter having protective feature against breakage |
| US7335180B2 (en) | 2003-11-24 | 2008-02-26 | Flowcardia, Inc. | Steerable ultrasound catheter |
| US6942677B2 (en) | 2003-02-26 | 2005-09-13 | Flowcardia, Inc. | Ultrasound catheter apparatus |
| US7331973B2 (en) * | 2002-09-30 | 2008-02-19 | Avdanced Cardiovascular Systems, Inc. | Guide wire with embolic filtering attachment |
| US20040147955A1 (en) * | 2003-01-28 | 2004-07-29 | Scimed Life Systems, Inc. | Embolic protection filter having an improved filter frame |
| US6878291B2 (en) * | 2003-02-24 | 2005-04-12 | Scimed Life Systems, Inc. | Flexible tube for cartridge filter |
| US7758510B2 (en) | 2003-09-19 | 2010-07-20 | Flowcardia, Inc. | Connector for securing ultrasound catheter to transducer |
| WO2006042114A1 (en) | 2004-10-06 | 2006-04-20 | Cook, Inc. | Emboli capturing device having a coil and method for capturing emboli |
| 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 |
| US8109962B2 (en) | 2005-06-20 | 2012-02-07 | Cook Medical Technologies Llc | Retrievable device having a reticulation portion with staggered struts |
| US7850708B2 (en) | 2005-06-20 | 2010-12-14 | Cook Incorporated | Embolic protection device having a reticulated body with staggered struts |
| US7771452B2 (en) | 2005-07-12 | 2010-08-10 | Cook Incorporated | Embolic protection device with a filter bag that disengages from a basket |
| US7766934B2 (en) | 2005-07-12 | 2010-08-03 | Cook Incorporated | Embolic protection device with an integral basket and bag |
| US8187298B2 (en) | 2005-08-04 | 2012-05-29 | Cook Medical Technologies Llc | Embolic protection device having inflatable frame |
| US8377092B2 (en) | 2005-09-16 | 2013-02-19 | Cook Medical Technologies Llc | Embolic protection device |
| US8632562B2 (en) | 2005-10-03 | 2014-01-21 | Cook Medical Technologies Llc | Embolic protection device |
| US8182508B2 (en) | 2005-10-04 | 2012-05-22 | Cook Medical Technologies Llc | Embolic protection device |
| US8252017B2 (en) | 2005-10-18 | 2012-08-28 | Cook Medical Technologies Llc | Invertible filter for embolic protection |
| US8216269B2 (en) | 2005-11-02 | 2012-07-10 | Cook Medical Technologies Llc | Embolic protection device having reduced profile |
| US8152831B2 (en) | 2005-11-17 | 2012-04-10 | Cook Medical Technologies Llc | Foam embolic protection device |
| US8562824B2 (en) | 2006-03-03 | 2013-10-22 | Sylvan Source, Inc. | Contaminant prevention |
| US9089404B2 (en) * | 2006-03-31 | 2015-07-28 | Covidien Lp | Embolic protection devices having radiopaque elements |
| US20070239198A1 (en) * | 2006-04-03 | 2007-10-11 | Boston Scientific Scimed, Inc. | Filter and wire with distal isolation |
| US20070265655A1 (en) * | 2006-05-09 | 2007-11-15 | Boston Scientific Scimed, Inc. | Embolic protection filter with enhanced stability within a vessel |
| US8409238B2 (en) * | 2006-05-18 | 2013-04-02 | Boston Scientific Scimed, Inc. | Mini cams on support loop for vessel stabilization |
| US20080097620A1 (en) | 2006-05-26 | 2008-04-24 | Nanyang Technological University | Implantable article, method of forming same and method for reducing thrombogenicity |
| US20080071307A1 (en) | 2006-09-19 | 2008-03-20 | Cook Incorporated | Apparatus and methods for in situ embolic protection |
| US8246643B2 (en) | 2006-11-07 | 2012-08-21 | Flowcardia, Inc. | Ultrasound catheter having improved distal end |
| WO2008086511A2 (en) * | 2007-01-11 | 2008-07-17 | Ev3 Inc. | Convertible embolic protection devices and methods of use |
| US9901434B2 (en) | 2007-02-27 | 2018-02-27 | Cook Medical Technologies Llc | Embolic protection device including a Z-stent waist band |
| KR100881812B1 (en) | 2007-05-23 | 2009-02-03 | 홍진태 | Metal Wire Using Membrane |
| US9138307B2 (en) | 2007-09-14 | 2015-09-22 | Cook Medical Technologies Llc | Expandable device for treatment of a stricture in a body vessel |
| US8252018B2 (en) | 2007-09-14 | 2012-08-28 | Cook Medical Technologies Llc | Helical embolic protection device |
| US8419748B2 (en) | 2007-09-14 | 2013-04-16 | Cook Medical Technologies Llc | Helical thrombus removal device |
| US20090099590A1 (en) * | 2007-10-11 | 2009-04-16 | Lalith Hiran Wijeratne | Embolic protection device having a filter frame with integral distal strain relief |
| US8585713B2 (en) | 2007-10-17 | 2013-11-19 | Covidien Lp | Expandable tip assembly for thrombus management |
| US8088140B2 (en) | 2008-05-19 | 2012-01-03 | Mindframe, Inc. | Blood flow restorative and embolus removal methods |
| US9220522B2 (en) * | 2007-10-17 | 2015-12-29 | Covidien Lp | Embolus removal systems with baskets |
| US20090105746A1 (en) * | 2007-10-17 | 2009-04-23 | Gardia Medical Ltd | Guidewire stop |
| US11337714B2 (en) | 2007-10-17 | 2022-05-24 | Covidien Lp | Restoring blood flow and clot removal during acute ischemic stroke |
| 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 |
| US8926680B2 (en) | 2007-11-12 | 2015-01-06 | Covidien Lp | Aneurysm neck bridging processes with revascularization systems methods and products thereby |
| US20100022951A1 (en) * | 2008-05-19 | 2010-01-28 | Luce, Forward, Hamilton 7 Scripps, Llp | Detachable hub/luer device and processes |
| US10123803B2 (en) | 2007-10-17 | 2018-11-13 | Covidien Lp | Methods of managing neurovascular obstructions |
| 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 |
| AU2008345624B2 (en) * | 2007-12-19 | 2014-05-08 | Covidien Lp | Improved devices and methods for embolus removal during acute ischemic stroke |
| AU2009217354B2 (en) | 2008-02-22 | 2013-10-10 | Covidien Lp | Methods and apparatus for flow restoration |
| US10898620B2 (en) | 2008-06-20 | 2021-01-26 | Razmodics Llc | Composite stent having multi-axial flexibility and method of manufacture thereof |
| US8206636B2 (en) | 2008-06-20 | 2012-06-26 | Amaranth Medical Pte. | Stent fabrication via tubular casting processes |
| US8206635B2 (en) | 2008-06-20 | 2012-06-26 | Amaranth Medical Pte. | Stent fabrication via tubular casting processes |
| US8388644B2 (en) | 2008-12-29 | 2013-03-05 | Cook Medical Technologies Llc | Embolic protection device and method of use |
| US8852204B2 (en) * | 2010-09-01 | 2014-10-07 | Merit Medical Systems, Inc. | Medical snare device |
| US20130274619A1 (en) * | 2011-11-01 | 2013-10-17 | Sensorcath, Inc. | Systems and methods for a low-profile vascular pressure measurement device |
| US9603615B2 (en) | 2012-01-18 | 2017-03-28 | C.R. Bard, Inc. | Vascular re-entry device |
| EP2879596A2 (en) | 2012-08-02 | 2015-06-10 | Flowcardia, Inc. | Ultrasound catheter system |
| PL233561B1 (en) * | 2014-10-07 | 2019-10-31 | Balton Spolka Z Ograniczona Odpowiedzialnoscia | Intravascular system for protection of blood vessels |
| KR101684121B1 (en) * | 2015-05-29 | 2016-12-07 | 현대자동차주식회사 | De-mineralizer for fuel cell and manufacturing method of the same |
| KR101763916B1 (en) * | 2016-01-27 | 2017-08-01 | 주식회사 에이런 | metal filter without blockage and permanent filter assembly provided with the same |
| US20180140321A1 (en) | 2016-11-23 | 2018-05-24 | C. R. Bard, Inc. | Catheter With Retractable Sheath And Methods Thereof |
| US11596726B2 (en) | 2016-12-17 | 2023-03-07 | C.R. Bard, Inc. | Ultrasound devices for removing clots from catheters and related methods |
| US10758256B2 (en) | 2016-12-22 | 2020-09-01 | C. R. Bard, Inc. | Ultrasonic endovascular catheter |
| US10582983B2 (en) | 2017-02-06 | 2020-03-10 | C. R. Bard, Inc. | Ultrasonic endovascular catheter with a controllable sheath |
| US10470748B2 (en) | 2017-04-03 | 2019-11-12 | C. R. Bard, Inc. | Ultrasonic endovascular catheter with expandable portion |
| US11707351B2 (en) | 2019-08-19 | 2023-07-25 | Encompass Technologies, Inc. | Embolic protection and access system |
Family Cites Families (231)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3278991A (en) | 1965-07-02 | 1966-10-18 | Mcneil Corp | Dip coating apparatus |
| US3472230A (en) | 1966-12-19 | 1969-10-14 | Fogarty T J | Umbrella catheter |
| US3952747A (en) | 1974-03-28 | 1976-04-27 | Kimmell Jr Garman O | Filter and filter insertion instrument |
| US3996938A (en) | 1975-07-10 | 1976-12-14 | Clark Iii William T | Expanding mesh catheter |
| US4046150A (en) | 1975-07-17 | 1977-09-06 | American Hospital Supply Corporation | Medical instrument for locating and removing occlusive objects |
| SU764684A1 (en) | 1978-01-31 | 1980-09-25 | Челябинский государственный медицинский институт | Trap filter |
| DE2821048C2 (en) | 1978-05-13 | 1980-07-17 | Willy Ruesch Gmbh & Co Kg, 7053 Kernen | Medical instrument |
| US4373009A (en) | 1981-05-18 | 1983-02-08 | International Silicone Corporation | Method of forming a hydrophilic coating on a substrate |
| US4425908A (en) | 1981-10-22 | 1984-01-17 | Beth Israel Hospital | Blood clot filter |
| US4376100A (en) * | 1981-11-23 | 1983-03-08 | The Dow Chemical Company | Lithium halide brine purification |
| US4643184A (en) | 1982-09-29 | 1987-02-17 | Mobin Uddin Kazi | Embolus trap |
| US4494531A (en) | 1982-12-06 | 1985-01-22 | Cook, Incorporated | Expandable blood clot filter |
| US4760071A (en) * | 1984-02-27 | 1988-07-26 | Merck & Co., Inc. | 17β-N-monosubstituted carbamoyl-4-aza-5α-androst-1-en-3-ones which are active as testosterone 5α-reductase inhibitors |
| US4590938A (en) | 1984-05-04 | 1986-05-27 | Segura Joseph W | Medical retriever device |
| DE3417738C2 (en) | 1984-05-12 | 1986-10-02 | Ing. Walter Hengst GmbH & Co KG, 4400 Münster | Blood filter that can be used in veins |
| US4842579B1 (en) | 1984-05-14 | 1995-10-31 | Surgical Systems & Instr Inc | Atherectomy device |
| DK151404C (en) | 1984-05-23 | 1988-07-18 | Cook Europ Aps William | FULLY FILTER FOR IMPLANTATION IN A PATIENT'S BLOOD |
| US4926858A (en) | 1984-05-30 | 1990-05-22 | Devices For Vascular Intervention, Inc. | Atherectomy device for severe occlusions |
| FR2573646B1 (en) | 1984-11-29 | 1988-11-25 | Celsa Composants Electr Sa | PERFECTED FILTER, PARTICULARLY FOR THE RETENTION OF BLOOD CLOTS |
| US4790813A (en) | 1984-12-17 | 1988-12-13 | Intravascular Surgical Instruments, Inc. | Method and apparatus for surgically removing remote deposits |
| US4807626A (en) | 1985-02-14 | 1989-02-28 | Mcgirr Douglas B | Stone extractor and method |
| IT8535720V0 (en) | 1985-03-27 | 1985-03-27 | Ital Idee Srl | AIR INTAKE FILTER CLOGGING INDICATOR, IN PARTICULAR FOR MOTOR VEHICLE ENGINES |
| FR2580504B1 (en) | 1985-04-22 | 1987-07-10 | Pieronne Alain | FILTER FOR THE PARTIAL AND AT LEAST PROVISIONAL INTERRUPTION OF A VEIN AND CATHETER CARRYING THE FILTER |
| US4706671A (en) | 1985-05-02 | 1987-11-17 | Weinrib Harry P | Catheter with coiled tip |
| US4650466A (en) | 1985-11-01 | 1987-03-17 | Angiobrade Partners | Angioplasty device |
| US4790812A (en) | 1985-11-15 | 1988-12-13 | Hawkins Jr Irvin F | Apparatus and method for removing a target object from a body passsageway |
| US4723549A (en) * | 1986-09-18 | 1988-02-09 | Wholey Mark H | Method and apparatus for dilating blood vessels |
| US4874373A (en) | 1987-03-03 | 1989-10-17 | Luther Ronald B | Dip formed catheter and assembly |
| JPS63238872A (en) | 1987-03-25 | 1988-10-04 | テルモ株式会社 | Instrument for securing inner diameter of cavity of tubular organ and catheter equipped therewith |
| US4817600A (en) | 1987-05-22 | 1989-04-04 | Medi-Tech, Inc. | Implantable filter |
| US4794928A (en) | 1987-06-10 | 1989-01-03 | Kletschka Harold D | Angioplasty device and method of using the same |
| US4873978A (en) | 1987-12-04 | 1989-10-17 | Robert Ginsburg | Device and method for emboli retrieval |
| US4917085A (en) * | 1987-12-14 | 1990-04-17 | Cordis Corporation | Drive cutting catheter having new and improved drive motor |
| FR2624747A1 (en) | 1987-12-18 | 1989-06-23 | Delsanti Gerard | REMOVABLE ENDO-ARTERIAL DEVICES FOR REPAIRING ARTERIAL WALL DECOLLEMENTS |
| US4921478A (en) | 1988-02-23 | 1990-05-01 | C. R. Bard, Inc. | Cerebral balloon angioplasty system |
| US4832055A (en) | 1988-07-08 | 1989-05-23 | Palestrant Aubrey M | Mechanically locking blood clot filter |
| US4921484A (en) | 1988-07-25 | 1990-05-01 | Cordis Corporation | Mesh balloon catheter device |
| US5011488A (en) | 1988-12-07 | 1991-04-30 | Robert Ginsburg | Thrombus extraction system |
| US5152777A (en) | 1989-01-25 | 1992-10-06 | Uresil Corporation | Device and method for providing protection from emboli and preventing occulsion of blood vessels |
| FR2643250B1 (en) | 1989-02-20 | 1997-12-26 | Lg Medical Sa | INTERVENTION DEVICE ON THE CARDIOVASCULAR SYSTEM ALLOWING IN PARTICULAR THE TREATMENT OF THROMBUS |
| US4969891A (en) | 1989-03-06 | 1990-11-13 | Gewertz Bruce L | Removable vascular filter |
| DE8910603U1 (en) | 1989-09-06 | 1989-12-07 | Guenther, Rolf W., Prof. Dr. | |
| US5002560A (en) | 1989-09-08 | 1991-03-26 | Advanced Cardiovascular Systems, Inc. | Expandable cage catheter with a rotatable guide |
| DE8910856U1 (en) | 1989-09-12 | 1989-11-30 | Schneider (Europe) Ag, Zuerich, Ch | |
| DE4030998C2 (en) | 1989-10-04 | 1995-11-23 | Ernst Peter Prof Dr M Strecker | Percutaneous vascular filter |
| AU6376190A (en) | 1989-10-25 | 1991-05-02 | C.R. Bard Inc. | Occluding catheter and methods for treating cerebral arteries |
| GB2238485B (en) | 1989-11-28 | 1993-07-14 | Cook William Europ | A collapsible filter for introduction in a blood vessel of a patient |
| FR2655533A1 (en) | 1989-12-13 | 1991-06-14 | Lefebvre Jean Marie | FILTER CATHETER. |
| US5421832A (en) | 1989-12-13 | 1995-06-06 | Lefebvre; Jean-Marie | Filter-catheter and method of manufacturing same |
| US5071407A (en) | 1990-04-12 | 1991-12-10 | Schneider (U.S.A.) Inc. | Radially expandable fixation member |
| CA2048307C (en) | 1990-08-14 | 1998-08-18 | Rolf Gunther | Method and apparatus for filtering blood in a blood vessel of a patient |
| US5108419A (en) | 1990-08-16 | 1992-04-28 | Evi Corporation | Endovascular filter and method for use thereof |
| US5160342A (en) | 1990-08-16 | 1992-11-03 | Evi Corp. | Endovascular filter and method for use thereof |
| DE4025825A1 (en) | 1990-08-16 | 1992-02-20 | Cook William Europ | DEVICE FOR CRUSHING BLOOD CLOTS |
| US5100423A (en) | 1990-08-21 | 1992-03-31 | Medical Engineering & Development Institute, Inc. | Ablation catheter |
| FR2666980B1 (en) | 1990-09-26 | 1993-07-23 | Lg Medical | BLOOD FILTRATION UNIT AND DEVICE FOR INTRODUCING SUCH A UNIT ONTO THE BLOOD PATH. |
| US5449372A (en) | 1990-10-09 | 1995-09-12 | Scimed Lifesystems, Inc. | Temporary stent and methods for use and manufacture |
| US5053008A (en) | 1990-11-21 | 1991-10-01 | Sandeep Bajaj | Intracardiac catheter |
| US5152771A (en) | 1990-12-31 | 1992-10-06 | The Board Of Supervisors Of Louisiana State University | Valve cutter for arterial by-pass surgery |
| DE9109006U1 (en) | 1991-07-22 | 1991-10-10 | Schmitz-Rode, Thomas, Dipl.-Ing. Dr.Med., 5100 Aachen, De | |
| FR2685190B1 (en) | 1991-12-23 | 1998-08-07 | Jean Marie Lefebvre | ROTARY ATHERECTOMY OR THROMBECTOMY DEVICE WITH CENTRIFUGAL TRANSVERSE DEVELOPMENT. |
| CA2087132A1 (en) | 1992-01-31 | 1993-08-01 | Michael S. Williams | Stent capable of attachment within a body lumen |
| US5224953A (en) | 1992-05-01 | 1993-07-06 | The Beth Israel Hospital Association | Method for treatment of obstructive portions of urinary passageways |
| FR2694687B1 (en) | 1992-08-12 | 1994-09-30 | Celsa Lg | Vascular prosthesis for filtering blood in a vessel and interventional device for such temporary filtering. |
| US5527338A (en) | 1992-09-02 | 1996-06-18 | Board Of Regents, The University Of Texas System | Intravascular device |
| US5792157A (en) | 1992-11-13 | 1998-08-11 | Scimed Life Systems, Inc. | Expandable intravascular occlusion material removal devices and methods of use |
| FR2699810B1 (en) | 1992-12-28 | 1995-02-24 | Cardial Sa | Device intended to stop the circulation of thrombi in vascular conduits. |
| US5354310A (en) | 1993-03-22 | 1994-10-11 | Cordis Corporation | Expandable temporary graft |
| WO1994024946A1 (en) | 1993-04-29 | 1994-11-10 | Scimed Life Systems, Inc. | Expandable intravascular occlusion material removal device |
| US5456667A (en) | 1993-05-20 | 1995-10-10 | Advanced Cardiovascular Systems, Inc. | Temporary stenting catheter with one-piece expandable segment |
| US5462529A (en) | 1993-09-29 | 1995-10-31 | Technology Development Center | Adjustable treatment chamber catheter |
| FR2713081B1 (en) | 1993-11-29 | 1996-01-12 | Celsa Lg | Improved blood filter with two series of petal legs. |
| US5683451A (en) | 1994-06-08 | 1997-11-04 | Cardiovascular Concepts, Inc. | Apparatus and methods for deployment release of intraluminal prostheses |
| DE29522101U1 (en) | 1994-06-08 | 1999-12-09 | Cardiovascular Concepts Inc | Endoluminal prosthesis |
| DE9409484U1 (en) | 1994-06-11 | 1994-08-04 | Naderlinger Eduard | Vena cava thrombus filter |
| WO1996001079A1 (en) | 1994-07-01 | 1996-01-18 | Scimed Life Systems, Inc. | Intravascular device utilizing fluid to extract occlusive material |
| WO2000053120A1 (en) | 1994-07-08 | 2000-09-14 | Microvena Corporation | Minimally invasive medical device deployment and retrieval system |
| EP0769926B2 (en) | 1994-07-08 | 2006-11-22 | ev3 Inc. | Intravascular filtering device |
| NL9401633A (en) | 1994-10-04 | 1996-05-01 | Surgical Innovations Vof | Assembly for the treatment of blood vessels and a method thereof. |
| US5658296A (en) | 1994-11-21 | 1997-08-19 | Boston Scientific Corporation | Method for making surgical retrieval baskets |
| US5709704A (en) | 1994-11-30 | 1998-01-20 | Boston Scientific Corporation | Blood clot filtering |
| US6013093A (en) | 1995-11-28 | 2000-01-11 | Boston Scientific Corporation | Blood clot filtering |
| 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 |
| JPH08187294A (en) | 1995-01-12 | 1996-07-23 | Clinical Supply:Kk | Filter for thrombus catching |
| US5664580A (en) | 1995-01-31 | 1997-09-09 | Microvena Corporation | Guidewire having bimetallic coil |
| NL1000105C2 (en) | 1995-04-10 | 1996-10-11 | Cordis Europ | Catheter with filter and thrombi draining device. |
| US5795322A (en) | 1995-04-10 | 1998-08-18 | Cordis Corporation | Catheter with filter and thrombus-discharge device |
| US5807398A (en) | 1995-04-28 | 1998-09-15 | Shaknovich; Alexander | Shuttle stent delivery catheter |
| NL1001410C2 (en) | 1995-05-19 | 1996-11-20 | Cordis Europ | Medical device for long-term residence in a body. |
| US6312407B1 (en) | 1995-06-05 | 2001-11-06 | Medtronic Percusurge, Inc. | Occlusion of a vessel |
| US5833650A (en) | 1995-06-05 | 1998-11-10 | Percusurge, Inc. | Catheter apparatus and method for treating occluded vessels |
| US6280413B1 (en) | 1995-06-07 | 2001-08-28 | Medtronic Ave, Inc. | Thrombolytic filtration and drug delivery catheter with a self-expanding portion |
| FR2737653B1 (en) | 1995-08-10 | 1997-09-19 | Braun Celsa Sa | DEFINITIVE FILTER COMPRISING AN ORIFICE FOR THE PASSAGE OF MEDICAL DEVICES AND ITS MANUFACTURING METHOD |
| US5925016A (en) | 1995-09-27 | 1999-07-20 | Xrt Corp. | Systems and methods for drug delivery including treating thrombosis by driving a drug or lytic agent through the thrombus by pressure |
| US6168604B1 (en) | 1995-10-06 | 2001-01-02 | Metamorphic Surgical Devices, Llc | Guide wire device for removing solid objects from body canals |
| US6264663B1 (en) * | 1995-10-06 | 2001-07-24 | Metamorphic Surgical Devices, Llc | Device for removing solid objects from body canals, cavities and organs including an invertable basket |
| US5779716A (en) | 1995-10-06 | 1998-07-14 | Metamorphic Surgical Devices, Inc. | Device for removing solid objects from body canals, cavities and organs |
| US5769816A (en) | 1995-11-07 | 1998-06-23 | Embol-X, Inc. | Cannula with associated filter |
| US5989281A (en) * | 1995-11-07 | 1999-11-23 | Embol-X, Inc. | Cannula with associated filter and methods of use during cardiac surgery |
| US5749848A (en) | 1995-11-13 | 1998-05-12 | Cardiovascular Imaging Systems, Inc. | Catheter system having imaging, balloon angioplasty, and stent deployment capabilities, and method of use for guided stent deployment |
| US5695519A (en) | 1995-11-30 | 1997-12-09 | American Biomed, Inc. | Percutaneous filter for carotid angioplasty |
| US5728066A (en) | 1995-12-13 | 1998-03-17 | Daneshvar; Yousef | Injection systems and methods |
| US5827429A (en) | 1996-01-18 | 1998-10-27 | Filtertek Inc. | Intravenous filter device |
| US5895398A (en) | 1996-02-02 | 1999-04-20 | The Regents Of The University Of California | Method of using a clot capture coil |
| NL1002423C2 (en) | 1996-02-22 | 1997-08-25 | Cordis Europ | Temporary filter catheter. |
| US5935139A (en) | 1996-05-03 | 1999-08-10 | Boston Scientific Corporation | System for immobilizing or manipulating an object in a tract |
| US6048331A (en) | 1996-05-14 | 2000-04-11 | Embol-X, Inc. | Cardioplegia occluder |
| AU3122197A (en) | 1996-05-14 | 1997-12-05 | Embol-X, Inc. | Aortic occluder with associated filter and methods of use during cardiac surgery |
| US6022336A (en) | 1996-05-20 | 2000-02-08 | Percusurge, Inc. | Catheter system for emboli containment |
| US5833644A (en) | 1996-05-20 | 1998-11-10 | Percusurge, Inc. | Method for emboli containment |
| NL1003497C2 (en) | 1996-07-03 | 1998-01-07 | Cordis Europ | Catheter with temporary vena-cava filter. |
| AU6617396A (en) | 1996-07-12 | 1998-02-09 | Alain Fouere | Extensible filtering sheath for surgical use for vena cava or large blood vessels |
| US5662671A (en) | 1996-07-17 | 1997-09-02 | Embol-X, Inc. | Atherectomy device having trapping and excising means for removal of plaque from the aorta and other arteries |
| US6066158A (en) * | 1996-07-25 | 2000-05-23 | Target Therapeutics, Inc. | Mechanical clot encasing and removal wire |
| DE942767T1 (en) | 1996-11-27 | 2000-04-06 | Boston Scient Corp | MECHANISM FOR ANCHORING AND RELEASING A PERMANENT IMPLANT |
| US5876367A (en) | 1996-12-05 | 1999-03-02 | Embol-X, Inc. | Cerebral protection during carotid endarterectomy and downstream vascular protection during other surgeries |
| FR2758078B1 (en) | 1997-01-03 | 1999-07-16 | Braun Celsa Sa | BLOOD FILTER WITH IMPROVED PERMEABILITY |
| EP1226796B1 (en) | 1997-02-03 | 2005-06-01 | Angioguard, Inc. | Vascular filter |
| US6391044B1 (en) | 1997-02-03 | 2002-05-21 | Angioguard, Inc. | Vascular filter system |
| US5882329A (en) | 1997-02-12 | 1999-03-16 | Prolifix Medical, Inc. | Apparatus and method for removing stenotic material from stents |
| AU6657098A (en) | 1997-02-12 | 1998-08-26 | Prolifix Medical, Inc. | Apparatus for removal of material from stents |
| US5893869A (en) | 1997-02-19 | 1999-04-13 | University Of Iowa Research Foundation | Retrievable inferior vena cava filter system and method for use thereof |
| US5800457A (en) | 1997-03-05 | 1998-09-01 | Gelbfish; Gary A. | Intravascular filter and associated methodology |
| EP0934092A4 (en) | 1997-03-06 | 2008-03-26 | Boston Scient Scimed Inc | Distal protection device and method |
| US5814064A (en) | 1997-03-06 | 1998-09-29 | Scimed Life Systems, Inc. | Distal protection device |
| WO1998038929A1 (en) | 1997-03-06 | 1998-09-11 | Percusurge, Inc. | Intravascular aspiration system |
| US5827324A (en) | 1997-03-06 | 1998-10-27 | Scimed Life Systems, Inc. | Distal protection device |
| US6152946A (en) | 1998-03-05 | 2000-11-28 | Scimed Life Systems, 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 |
| US5846260A (en) | 1997-05-08 | 1998-12-08 | Embol-X, Inc. | Cannula with a modular filter for filtering embolic material |
| WO1998051237A1 (en) | 1997-05-16 | 1998-11-19 | Jonathan Gertler | Catheter-filter set having a compliant seal |
| US5954745A (en) | 1997-05-16 | 1999-09-21 | Gertler; Jonathan | Catheter-filter set having a compliant seal |
| US6059814A (en) | 1997-06-02 | 2000-05-09 | Medtronic Ave., Inc. | Filter for filtering fluid in a bodily passageway |
| US5800525A (en) | 1997-06-04 | 1998-09-01 | Vascular Science, Inc. | Blood filter |
| US5848964A (en) | 1997-06-06 | 1998-12-15 | Samuels; Shaun Lawrence Wilkie | Temporary inflatable filter device and method of use |
| US5947995A (en) | 1997-06-06 | 1999-09-07 | Samuels; Shaun Lawrence Wilkie | Method and apparatus for removing blood clots and other objects |
| US6245088B1 (en) * | 1997-07-07 | 2001-06-12 | Samuel R. Lowery | Retrievable umbrella sieve and method of use |
| US6156061A (en) | 1997-08-29 | 2000-12-05 | Target Therapeutics, Inc. | Fast-detaching electrically insulated implant |
| US5941896A (en) | 1997-09-08 | 1999-08-24 | Montefiore Hospital And Medical Center | Filter and method for trapping emboli during endovascular procedures |
| FR2768326B1 (en) | 1997-09-18 | 1999-10-22 | De Bearn Olivier Despalle | TEMPORARY BLOOD FILTER |
| US6066149A (en) * | 1997-09-30 | 2000-05-23 | Target Therapeutics, Inc. | Mechanical clot treatment device with distal filter |
| WO1999022673A1 (en) | 1997-11-03 | 1999-05-14 | C.R. Bard, Inc. | Temporary vascular filter guide wire |
| IES81060B2 (en) | 1997-11-07 | 2000-01-12 | Salviac Ltd | An embolic protection device |
| US6013085A (en) | 1997-11-07 | 2000-01-11 | Howard; John | Method for treating stenosis of the carotid artery |
| US6156046A (en) | 1997-11-07 | 2000-12-05 | Prolifix Medical, Inc. | Methods and systems for treating obstructions in a body lumen |
| DE69839888D1 (en) * | 1997-11-12 | 2008-09-25 | Genesis Technologies Llc | DEVICE FOR REMOVING OCCLUSIONS IN BIOLOGICAL PASSES |
| US6443972B1 (en) | 1997-11-19 | 2002-09-03 | Cordis Europa N.V. | Vascular filter |
| NL1007584C2 (en) | 1997-11-19 | 1999-05-20 | Cordis Europ | Vena cava filter. |
| WO2001072205A2 (en) | 1998-01-26 | 2001-10-04 | Advanced Cardiovascular Systems, Inc. | Method and apparatus for capturing objects beyond an operative site in medical procedures |
| US5989210A (en) | 1998-02-06 | 1999-11-23 | Possis Medical, Inc. | Rheolytic thrombectomy catheter and method of using same |
| JP2002502626A (en) * | 1998-02-10 | 2002-01-29 | アーテミス・メディカル・インコーポレイテッド | Supplementary device and method of using the same |
| EP0935978A1 (en) | 1998-02-16 | 1999-08-18 | Medicorp S.A. | Angioplasty and stent delivery catheter |
| US6159195A (en) * | 1998-02-19 | 2000-12-12 | Percusurge, Inc. | Exchange catheter and method of use |
| WO1999044510A1 (en) | 1998-03-04 | 1999-09-10 | Bioguide Consulting, Inc. | Guidewire filter device |
| US5925060A (en) | 1998-03-13 | 1999-07-20 | B. Braun Celsa | Covered self-expanding vascular occlusion device |
| US6206868B1 (en) * | 1998-03-13 | 2001-03-27 | Arteria Medical Science, Inc. | Protective device and method against embolization during treatment of carotid artery disease |
| US6338727B1 (en) | 1998-08-13 | 2002-01-15 | Alsius Corporation | Indwelling heat exchange catheter and method of using same |
| US6007557A (en) | 1998-04-29 | 1999-12-28 | Embol-X, Inc. | Adjustable blood filtration system |
| WO1999058068A2 (en) | 1998-05-13 | 1999-11-18 | Salviac Limited | A surgical shunt |
| US6306163B1 (en) | 1998-08-04 | 2001-10-23 | Advanced Cardiovascular Systems, Inc. | Assembly for collecting emboli and method of use |
| US6051014A (en) | 1998-10-13 | 2000-04-18 | Embol-X, Inc. | Percutaneous filtration catheter for valve repair surgery and methods of use |
| US6171327B1 (en) | 1999-02-24 | 2001-01-09 | Scimed Life Systems, Inc. | Intravascular filter and method |
| US6355051B1 (en) * | 1999-03-04 | 2002-03-12 | Bioguide Consulting, Inc. | Guidewire filter device |
| US6245012B1 (en) * | 1999-03-19 | 2001-06-12 | Nmt Medical, Inc. | Free standing filter |
| US6641573B1 (en) | 1999-03-25 | 2003-11-04 | Arteria Medical Science, Inc. | Device and method of guide wire balloon inflation and deflation to prevent cerebral embolization during carotid stenting |
| US6521315B1 (en) | 1999-03-30 | 2003-02-18 | Fairchild Holding Corp. | Method for making a stamper for use in making a substrate for a digital versatile disc |
| US6277138B1 (en) | 1999-08-17 | 2001-08-21 | Scion Cardio-Vascular, Inc. | Filter for embolic material mounted on expandable frame |
| US6277139B1 (en) | 1999-04-01 | 2001-08-21 | Scion Cardio-Vascular, Inc. | Vascular protection and embolic material retriever |
| DE19916162A1 (en) | 1999-04-11 | 2000-10-26 | Oralia Gmbh | Modular dental laser system; has laser unit with soft or hard laser, transfer unit to transmit laser beam to applicator and operation element to control laser unit, along with optional modules |
| AU3844199A (en) | 1999-05-07 | 2000-11-21 | Salviac Limited | An embolic protection device |
| AU3844499A (en) | 1999-05-07 | 2000-11-21 | Salviac Limited | Improved filter element for embolic protection device |
| IL145979A0 (en) | 1999-05-07 | 2002-07-25 | Salviac Ltd | An embolic protection device |
| WO2000067665A1 (en) | 1999-05-07 | 2000-11-16 | Salviac Limited | Support frame for embolic protection device |
| US6068645A (en) * | 1999-06-07 | 2000-05-30 | Tu; Hosheng | Filter system and methods for removing blood clots and biological material |
| US6364900B1 (en) | 1999-07-14 | 2002-04-02 | Richard R. Heuser | Embolism prevention device |
| US6179859B1 (en) * | 1999-07-16 | 2001-01-30 | Baff Llc | Emboli filtration system and methods of use |
| US20030150821A1 (en) * | 1999-07-16 | 2003-08-14 | Bates Mark C. | Emboli filtration system and methods of use |
| DE60007693T2 (en) * | 1999-07-16 | 2004-12-09 | Terumo K.K. | Catheter and method for its manufacture |
| US6468291B2 (en) | 1999-07-16 | 2002-10-22 | Baff Llc | Emboli filtration system having integral strut arrangement and methods of use |
| US6179861B1 (en) * | 1999-07-30 | 2001-01-30 | Incept Llc | Vascular device having one or more articulation regions and methods of use |
| US6203561B1 (en) * | 1999-07-30 | 2001-03-20 | Incept Llc | Integrated vascular device having thrombectomy element and vascular filter and methods of use |
| US6214026B1 (en) * | 1999-07-30 | 2001-04-10 | Incept Llc | Delivery system for a vascular device with articulation region |
| US6371970B1 (en) * | 1999-07-30 | 2002-04-16 | Incept Llc | Vascular filter having articulation region and methods of use in the ascending aorta |
| US6530939B1 (en) * | 1999-07-30 | 2003-03-11 | Incept, Llc | Vascular device having articulation region and methods of use |
| JP2003505215A (en) | 1999-07-30 | 2003-02-12 | インセプト エルエルシー | Vascular filter with joint area and method of use in ascending aorta |
| CA2378715C (en) | 1999-07-30 | 2011-09-06 | Incept Llc | Vascular device for emboli, thrombus and foreign body removal and methods of use |
| US6245087B1 (en) * | 1999-08-03 | 2001-06-12 | Embol-X, Inc. | Variable expansion frame system for deploying medical devices and methods of use |
| US6346116B1 (en) * | 1999-08-03 | 2002-02-12 | Medtronic Ave, Inc. | Distal protection device |
| US6142987A (en) | 1999-08-03 | 2000-11-07 | Scimed Life Systems, Inc. | Guided filter with support wire and methods of use |
| US6235044B1 (en) | 1999-08-04 | 2001-05-22 | Scimed Life Systems, Inc. | Percutaneous catheter and guidewire for filtering during ablation of mycardial or vascular tissue |
| US6168579B1 (en) * | 1999-08-04 | 2001-01-02 | Scimed Life Systems, Inc. | Filter flush system and methods of use |
| ES2209503T3 (en) | 1999-08-27 | 2004-06-16 | Ev3 Inc. | FOLDING MEDICAL DEVICE. |
| US6325815B1 (en) | 1999-09-21 | 2001-12-04 | Microvena Corporation | Temporary vascular filter |
| US6375670B1 (en) | 1999-10-07 | 2002-04-23 | Prodesco, Inc. | Intraluminal filter |
| US6340364B2 (en) * | 1999-10-22 | 2002-01-22 | Nozomu Kanesaka | Vascular filtering device |
| US6264672B1 (en) * | 1999-10-25 | 2001-07-24 | Biopsy Sciences, Llc | Emboli capturing device |
| US6171328B1 (en) * | 1999-11-09 | 2001-01-09 | Embol-X, Inc. | Intravascular catheter filter with interlocking petal design and methods of use |
| US6371971B1 (en) * | 1999-11-15 | 2002-04-16 | Scimed Life Systems, Inc. | Guidewire filter and methods of use |
| US6623450B1 (en) | 1999-12-17 | 2003-09-23 | Advanced Cardiovascular Systems, Inc. | System for blocking the passage of emboli through a body vessel |
| US6443971B1 (en) | 1999-12-21 | 2002-09-03 | Advanced Cardiovascular Systems, Inc. | System for, and method of, blocking the passage of emboli through a vessel |
| US6406471B1 (en) | 1999-12-28 | 2002-06-18 | Embol-X, Inc. | Arterial filter with aspiration and methods of use |
| US6290710B1 (en) | 1999-12-29 | 2001-09-18 | Advanced Cardiovascular Systems, Inc. | Embolic protection device |
| US6695813B1 (en) * | 1999-12-30 | 2004-02-24 | Advanced Cardiovascular Systems, Inc. | Embolic protection devices |
| US6540722B1 (en) | 1999-12-30 | 2003-04-01 | Advanced Cardiovascular Systems, Inc. | Embolic protection devices |
| US6511503B1 (en) * | 1999-12-30 | 2003-01-28 | Advanced Cardiovascular Systems, Inc. | Catheter apparatus for treating occluded vessels and filtering embolic debris and method of use |
| US6290656B1 (en) | 1999-12-30 | 2001-09-18 | Advanced Cardiovascular Systems, Inc. | Guide wire with damped force vibration mechanism |
| US6383206B1 (en) * | 1999-12-30 | 2002-05-07 | Advanced Cardiovascular Systems, Inc. | Embolic protection system and method including filtering elements |
| US6361546B1 (en) * | 2000-01-13 | 2002-03-26 | Endotex Interventional Systems, Inc. | Deployable recoverable vascular filter and methods for use |
| US6443926B1 (en) | 2000-02-01 | 2002-09-03 | Harold D. Kletschka | Embolic protection device having expandable trap |
| AU2001238155A1 (en) | 2000-02-11 | 2001-08-20 | Percusurge, Inc. | Intravascular device for filtering emboli |
| AU2001238316A1 (en) | 2000-02-18 | 2001-08-27 | The Foundry Llc | Filtering devices and methods for filtering flow through a body structure |
| WO2001067989A2 (en) | 2000-03-10 | 2001-09-20 | Don Michael T Anthony | Vascular embolism preventon device employing filters |
| US6520978B1 (en) | 2000-05-15 | 2003-02-18 | Intratherapeutics, Inc. | Emboli filter |
| WO2001089413A2 (en) | 2000-05-24 | 2001-11-29 | Medtronic Ave Inc. | Distal protection device |
| US6645221B1 (en) | 2000-05-30 | 2003-11-11 | Zuli, Holdings Ltd. | Active arterial embolization filter |
| US6679902B1 (en) * | 2000-07-19 | 2004-01-20 | Advanced Cardiovascular Systems, Inc. | Reduced profile delivery sheath for use in interventional procedures |
| US6511496B1 (en) * | 2000-09-12 | 2003-01-28 | Advanced Cardiovascular Systems, Inc. | Embolic protection device for use in interventional procedures |
| US6537294B1 (en) * | 2000-10-17 | 2003-03-25 | Advanced Cardiovascular Systems, Inc. | Delivery systems for embolic filter devices |
| US6616680B1 (en) * | 2000-11-01 | 2003-09-09 | Joseph M. Thielen | Distal protection and delivery system and method |
| US20020090389A1 (en) * | 2000-12-01 | 2002-07-11 | Humes H. David | Intravascular blood conditioning device and use thereof |
| US7226464B2 (en) * | 2001-03-01 | 2007-06-05 | Scimed Life Systems, Inc. | Intravascular filter retrieval device having an actuatable dilator tip |
| US20020161395A1 (en) * | 2001-04-03 | 2002-10-31 | Nareak Douk | Guide wire apparatus for prevention of distal atheroembolization |
| US6428559B1 (en) | 2001-04-03 | 2002-08-06 | Cordis Corporation | Removable, variable-diameter vascular filter system |
| US6596011B2 (en) * | 2001-06-12 | 2003-07-22 | Cordis Corporation | Emboli extraction catheter and vascular filter system |
| US6592606B2 (en) * | 2001-08-31 | 2003-07-15 | Advanced Cardiovascular Systems, Inc. | Hinged short cage for an embolic protection device |
| US20030060843A1 (en) * | 2001-09-27 | 2003-03-27 | Don Boucher | Vascular filter system with encapsulated filter |
| EP1455681B1 (en) | 2001-12-21 | 2014-09-17 | Salviac Limited | A support frame for an embolic protection device |
| US7481823B2 (en) * | 2002-10-25 | 2009-01-27 | Boston Scientific Scimed, Inc. | Multiple membrane embolic protection filter |
| US7625389B2 (en) * | 2002-12-30 | 2009-12-01 | Boston Scientific Scimed, Inc. | Embolic protection device |
| US6878291B2 (en) * | 2003-02-24 | 2005-04-12 | Scimed Life Systems, Inc. | Flexible tube for cartridge filter |
-
2003
- 2003-02-24 US US10/373,482 patent/US6878291B2/en not_active Expired - Lifetime
-
2004
- 2004-02-12 WO PCT/US2004/003993 patent/WO2004075786A1/en active Application Filing
- 2004-02-12 JP JP2006503490A patent/JP2006518636A/en active Pending
- 2004-02-12 CA CA2515786A patent/CA2515786C/en not_active Expired - Fee Related
- 2004-02-12 EP EP04710580A patent/EP1596757A1/en not_active Withdrawn
-
2005
- 2005-01-21 US US11/040,631 patent/US7459080B2/en not_active Expired - Lifetime
-
2008
- 2008-10-29 US US12/260,300 patent/US7762403B2/en not_active Expired - Fee Related
-
2010
- 2010-06-14 US US12/814,698 patent/US7987994B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP1596757A1 (en) | 2005-11-23 |
| US7762403B2 (en) | 2010-07-27 |
| US20090054907A1 (en) | 2009-02-26 |
| CA2515786A1 (en) | 2004-09-10 |
| US20040164030A1 (en) | 2004-08-26 |
| US6878291B2 (en) | 2005-04-12 |
| JP2006518636A (en) | 2006-08-17 |
| WO2004075786A8 (en) | 2005-12-08 |
| US7459080B2 (en) | 2008-12-02 |
| US7987994B2 (en) | 2011-08-02 |
| US20100300956A1 (en) | 2010-12-02 |
| US20050126979A1 (en) | 2005-06-16 |
| WO2004075786A1 (en) | 2004-09-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20160212 |