CA2457012A1 - Embolic protection device - Google Patents

Embolic protection device Download PDF

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Publication number
CA2457012A1
CA2457012A1 CA002457012A CA2457012A CA2457012A1 CA 2457012 A1 CA2457012 A1 CA 2457012A1 CA 002457012 A CA002457012 A CA 002457012A CA 2457012 A CA2457012 A CA 2457012A CA 2457012 A1 CA2457012 A1 CA 2457012A1
Authority
CA
Canada
Prior art keywords
graft member
protection device
embolic protection
graft
constructed
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.)
Granted
Application number
CA002457012A
Other languages
French (fr)
Other versions
CA2457012C (en
Inventor
Christopher T. Boyle
Steven R. Bailey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Advanced Bio Prosthetic Surfaces Ltd
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2457012A1 publication Critical patent/CA2457012A1/en
Application granted granted Critical
Publication of CA2457012C publication Critical patent/CA2457012C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • A61F2/013—Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • A61F2/07—Stent-grafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22038—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with a guide wire
    • A61B2017/22042—Details of the tip of the guide wire
    • 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
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
    • 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
    • A61F2002/016—Filters implantable into blood vessels made from wire-like elements
    • 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
    • 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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • A61F2/07—Stent-grafts
    • A61F2002/075—Stent-grafts the stent being loosely attached to the graft material, e.g. by stitching
    • 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
    • A61F2230/0067—Three-dimensional shapes conical
    • 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
    • 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
    • A61F2230/0093—Umbrella-shaped, e.g. mushroom-shaped
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S977/00—Nanotechnology
    • Y10S977/84—Manufacture, treatment, or detection of nanostructure
    • Y10S977/849—Manufacture, treatment, or detection of nanostructure with scanning probe
    • Y10S977/86—Scanning probe structure
    • Y10S977/875—Scanning probe structure with tip detail
    • Y10S977/876—Nanotube tip

Abstract

An embolic protection device (10)includes a catheter body (14) having a central longitudinal lumen, a guidewire (12) positioned within the central longitudinal lumen, and a graft member (16) that is generally tubular in sha pe in an undeployed state and generally frustroconical in shape in a deployed state. A plurality of openings (30) are formed in the graft member (16) and a plurality of arm members (18) interconnect a proximal end of the graft membe r with the catheter body. The graft member may be fabricated of superelastic materials, plastically deformable materials or self-expanding materials and the plurality of openings are capable of diametric expansion and reduction proportionate to the degree of diametric expansion and reduction of a corresponding transverse cross-sectional region of the graft member when in the deployed state to capture emboli or particulate matter and minimize extrusion of the captured material through the openings in the graft member when the graft member is collapsed.

Claims (31)

1. An embolic protection device, comprising:
a first elongate member having a lumen;
a second elongate member extending through the lumen and being movable with respect to the first elongate member; and a graft member having a proximal end portion connected to the first elongate member and a distal end portion connected to the second elongate member, and a plurality of openings extending through the graft member along a length thereof;
the graft member being expandable from an undeployed generally tubular state to a deployed generally frustroconical state upon relative movement between the first and second elongate members in a first direction, the openings generally decreasing in size from the proximal end toward the distal end when the graft member is in the deployed state to thereby capture and retain emboli and other particulate matter of different sizes.
2. An embolic protection device according to claim 1, wherein the openings are substantially uniform in size when the graft member is in the undeployed state.
3. An embolic protection device according to claim 1, and further comprising a plurality of arm members extending between the first elongate member and the proximal end of the graft member, such that relative movement of the first and second elongate members in the first direction causes the arm members to move from a generally axial orientation to a generally radial orientation to thereby radially expand the proximal end of the graft member.
4. An embolic protection device according to claim 3, wherein the distal end of the graft member is substantially restrained against radial expansion such that the diameter of the graft member decreases from the proximal end toward the distal end when the graft member is in the deployed state.
5. An embolic protection device according to claim 4, wherein the size of each opening is proportional to the diameter of the graft member at which each opening is located.
6. An embolic protection device according to claim 5, wherein relative movement of the first and second elongate members in a second direction opposite the first direction causes the graft member to return to the undeployed state, thereby reducing the size of the openings at least at the proximal end, such that the emboli and other particulate matter can be entrapped within the graft member.
7. An embolic protection device according to claim 6, wherein the openings are substantially uniform in size when the graft member is in the undeployed state.
8. An embolic protection device according to claim 7, wherein the graft member is constructed from at least one of a superelastic material, a plastically deformable material, and an elastic material.
9. An embolic protection device according to claim 1, wherein the graft member is constructed from at least one of a superelastic material, a plastically deformable material, and an elastic material.
10. An embolic protection device according to claim 1, wherein the distal end of the graft member is substantially restrained against radial expansion such that the graft member decreases in diameter from the proximal end toward the distal end when the graft member is in the deployed state.
11. An embolic protection device according to claim 10, wherein the size of each opening is proportional to the diameter of the graft member at which each opening is located.
12. An embolic protection device according to claim 1, wherein relative movement of the first and second elongate members in a second direction opposite the first direction causes the graft member to return to the undeployed state, thereby reducing the size of the openings at least at the proximal end, such that the emboli and other particulate matter can be entrapped within the graft member.
13. An embolic protection device according to claim 1, wherein the graft member constructed of a metal material.
14. An embolic protection device according to claim 1, wherein the graft member constructed of a thin film metal.
15. An embolic protection device according to claim 14, wherein the thin film met comprises a nickel titanium alloy.
16. An embolic protection device according to claim 1, wherein the graft member is constructed of braided wire.
17. An embolic protection device according to claim 1, wherein the first elongate member is a catheter.
18. An embolic protection device according to claim 17, wherein the second elongate member is a guide wire.
19. An embolic protection device according to claim 18, wherein the guide wire has an atraumatic tip at a distal end thereof.
20. An embolic protection device according to claim 1, wherein the second elongate member has a tubular distal portion, and further comprising a plurality of arm members integrally formed in the tubular portion in proximity with the proximal end of the graft member, the plurality of arm members being biased toward an expanded arm position and normally restrained in a retracted arm position by the first elongate member, such that relative movement of the first and second elongate members in the first direction causes the arm members to move from the retracted arm position toward the expanded arm position to thereby radially expand the proximal end of the graft member.
21. An embolic protection device comprising:
a catheter body having a central longitudinal lumen;
a guidewire having an atraumatic tip positioned at a distal end thereof, the guidewire being coaxially positioned within the central longitudinal lumen of the catheter body;
and a graft member movable between an undeployed state and a deployed state, the graft member being of a generally tubular shape in the undeployed state and of a generally frustroconical shape in the deployed state, the graft member comprising a plurality of openings extending along a longitudinal axis thereof, with a distal end of the graft member being connected to one of the guidewire and the atraumatic tip, the graft member being movable between the undeployed and deployed states upon relative movement between the catheter body and the guide wire, the graft member being constructed of a material such that each opening expands and reduces in size in proportion to an amount of radial expansion and reduction, respectively, of a corresponding transverse cross sectional region of the graft member with which the opening is associated, to thereby capture emboli and other particulate matter when the graft member is in the deployed stag and minimize extrusion of the captured material through the openings in the graft member when the graft member is in the undeployed state.
22. An embolic protection device according to claim 21, wherein the openings are substantially uniform in size when the graft member is in the undeployed state.
23. An embolic protection device according to claim 22, wherein the graft member is constructed from at least one of a superelastic material, a plastically deformable material, and an elastic material.
24. An embolic protection device according to claim 21, wherein the graft member is constructed from at least one of a superelastic material, a plastically deformable material, and an elastic material.
25. An embolic protection device according to claim 21, wherein the distal end of the graft member is substantially restrained against radial expansion such that the graft member decreases in diameter from the proximal end toward the distal end when the graft member is in the deployed state.
26. An embolic protection device according to claim 21, wherein the graft member is constructed of a metal material.
27. An embolic protection device according to claim 21, wherein the graft member is constructed of a thin film metal.
28. An embolic protection device according to claim 27, wherein the thin film metal comprises a nickel titanium alloy.
29. An embolic protection device according to claim 21, wherein the graft member is constructed of braided wire.
30. An embolic protection device according to claim 21, wherein the guidewire has a tubular portion, and further comprising a plurality of arm members integrally formed in the tubular distal portion in proximity with the graft member, the tubular arm members being biased toward an expanded arm position and normally restrained in a retracted arm position by the catheter body, such that relative movement of the guidewire and catheter body direction causes the arm members to move from the retracted arm position toward the expanded arm position to thereby radially expand the proximal end of the graft member.
31. An embolic protection device according to claim 30, wherein the arm members are constructed of braided wire.
CA2457012A 2001-08-17 2002-08-01 Embolic protection device Expired - Fee Related CA2457012C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US31329401P 2001-08-17 2001-08-17
US60/313,294 2001-08-17
US10/136,246 2002-04-29
US10/136,246 US6695865B2 (en) 2000-03-20 2002-04-29 Embolic protection device
PCT/US2002/024578 WO2003015840A2 (en) 2001-08-17 2002-08-01 Embolic protection device

Publications (2)

Publication Number Publication Date
CA2457012A1 true CA2457012A1 (en) 2003-02-27
CA2457012C CA2457012C (en) 2012-01-10

Family

ID=26834153

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2457012A Expired - Fee Related CA2457012C (en) 2001-08-17 2002-08-01 Embolic protection device

Country Status (6)

Country Link
US (1) US6695865B2 (en)
EP (1) EP1416978B1 (en)
JP (1) JP4319540B2 (en)
AU (1) AU2002335625B2 (en)
CA (1) CA2457012C (en)
WO (1) WO2003015840A2 (en)

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