CA2415975A1 - Stent graft with branch leg - Google Patents

Stent graft with branch leg Download PDF

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Publication number
CA2415975A1
CA2415975A1 CA002415975A CA2415975A CA2415975A1 CA 2415975 A1 CA2415975 A1 CA 2415975A1 CA 002415975 A CA002415975 A CA 002415975A CA 2415975 A CA2415975 A CA 2415975A CA 2415975 A1 CA2415975 A1 CA 2415975A1
Authority
CA
Canada
Prior art keywords
prosthesis
artery
prostheses
fluid flow
stent
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
CA002415975A
Other languages
French (fr)
Other versions
CA2415975C (en
Inventor
George D. Landau
Marc Ramer
Kenneth S. Solovay
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.)
Cordis Corp
Original Assignee
Cordis Corp
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 Cordis Corp filed Critical Cordis Corp
Publication of CA2415975A1 publication Critical patent/CA2415975A1/en
Application granted granted Critical
Publication of CA2415975C publication Critical patent/CA2415975C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • 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
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    • 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
    • A61F2230/0013—Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-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
    • A61F2230/0002—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
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0028—Shapes in the form of latin or greek characters
    • A61F2230/0054—V-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
    • A61F2230/0078—Quadric-shaped hyperboloidal
    • 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
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
    • A61F2250/006—Additional features; Implant or prostheses properties not otherwise provided for modular

Abstract

The present invention is directed to a system, apparatus, and method for treating, repairing, and/or replacing an aneurysm, preferably an aortic aneurysm, and most preferably, an abdominal aortic aneurysm. The systems, devices, and methods of the present invention include a first prosthesis or stent gasket, and at least one second prosthesis for bypassing the aneurysm. In preferred embodiments, the second prosthesis includes a branch leg that may be disposed and anchored in an either a cross artery or a downstream artery to facilitate fluid flow. In other preferred embodiments, at least one third prosthesis is provided for establishing a fluid flow channel through a second diseased artery to bypass an aneurysm disposed therein. In accordance with the invention, the first artery may be the abdominal aorta and the second artery may be an iliac artery.

Claims (26)

1. A system for bypassing multiple aneurysms comprising a first prosthesis, at least two second prostheses communicating with the first prosthesis, and at least two third prostheses communicating with respective second prostheses; each of the second prostheses being configured to bypass a first aneurysm and to extend into an artery downstream of the first aneurysm, and a first one of the third prostheses being matingly engaged with a first one of the second prostheses and being configured to provide a fluid flow path in a second artery disposed downstream from the first artery and to bypass a second aneurysm, the first one of the third prostheses being configured to provide a fluid flow path through a first common iliac artery and the first one of the third prostheses further including a branch leg configured to create a first fluid flow path from the first one of the third prostheses into a first external iliac artery.
2. The system of claim 1 further comprising a second one of the third prostheses matingly engaged with a second one of the second prostheses, wherein the second one of the third prosthesis is configured to create a second fluid flow path through a second common iliac artery to a second external iliac artery.
3. The system of claim 2 wherein the at least two second prostheses each comprise a stent and a graft material communicating with the stent.
4. The system of claim 3 wherein the stent and graft material defines a fluid flow path through the second prostheses.
5. The system of claim 4 wherein the fluid flow path is a channel that bypasses the first aneurysm.
6. The system of claim 1 wherein the first one of the third prostheses comprises a stent defining a matrix having an upstream portion, a downstream portion and an intermediate portion, the intermediate portion including an aperture and a plurality of branched stent struts extending in a direction away from a plane including a longitudinal axis of said stent, and a graft material communicating with the matrix.
7. The system of claim 6 wherein the branch leg comprises the plurality of struts extending from the first one of the third prosthesis and a graft material communicating with the struts.
8. The system of claim 7 wherein said plurality of branched stent struts and graft material define the first fluid flow path from the first one of the third prostheses into the first external iliac artery.
9. The system of claim 8 wherein the branch leg is integrally formed with the third prosthesis.
10. The system of claim 9 wherein the branch leg is biased in a position substantially perpendicular to a longitudinal axis of said third prosthesis.
11. The system of claim 10 wherein a junction of the branch leg and the second prosthesis is disposed adjacent to an upstream end of the second prosthesis.
12. A prosthesis for splitting a fluid flow path comprising:
a stent defining a matrix having an upstream portion, a downstream portion and an intermediate portion disposed between the upstream and downstream portion, the intermediate portion including an aperture and a plurality of branched stent struts extending from the intermediate portion in a direction away from a plane including a longitudinal axis of said stent, and a graft material communicating with the matrix.
13. The prosthesis of claim 12 wherein the stent is comprised of a material exhibiting superelastic properties at body temperature.
14. The prosthesis of claim 13 wherein the stent is comprised of nickel-titanium alloy.
15. The prosthesis of claim 12 wherein the aperture is disposed in the intermediate portion of the matrix.
16. The prosthesis of claim 12 wherein the aperture is disposed in the downstream portion of the matrix.
17. The prosthesis of claim 12 wherein the aperture is disposed in the upstream portion of the matrix.
18. The prosthesis of claim 12 wherein the branched stent struts surround the aperture and are disposed adjacent to a perimeter of the aperture.
19. The prosthesis of claim 12 wherein said branched stent struts and the graft material comprise a branch leg.
20. The prosthesis of claim 19 wherein the branch leg is covered with foam.
21. The prosthesis of claim 19 wherein the branch leg is integrally formed with the stent.
22. The prosthesis of claim 19 wherein the branch leg is biased in a position substantially perpendicular to a longitudinal axis of the stent.
23. A method for bypassing an aneurysm downstream of a junction between a first artery and a second artery comprising positioning a first prosthesis in a first section of the first artery; engaging at least one second prosthesis with the first prosthesis, said second prosthesis forming a fluid flow path that bypasses the aneurysm; and positioning a branch leg of the second prosthesis in the second artery, the branch leg forming a fluid flow path from the second prosthesis to the second artery.
24. The method of claim 23 further comprising anchoring a downstream end of the second prosthesis in an artery downstream of the aneurysm.
25. The method of claim 23 further comprising anchoring a downstream end of the branch leg in the second artery.
26. A method for bypassing aneurysms disposed in an arterial system comprising:
positioning a first prosthesis in a first section of a first artery;
engaging at least one second prosthesis with the first prosthesis, said second prosthesis forming a fluid flow path that bypasses an aneurysm in the first artery;
engaging a third prosthesis with a downstream end of the at least one second prosthesis;
positioning a branch leg of the third prosthesis in first branch of the second artery, the branch leg forming a fluid flow path from the third prosthesis to the first branch of the second artery that bypasses an aneurysm in the second artery;
and positioning the third prosthesis in a second branch of the second artery, the third prosthesis forming a fluid flow path that bypasses the aneurysm in the second artery.
CA2415975A 2002-01-08 2003-01-07 Stent graft with branch leg Expired - Fee Related CA2415975C (en)

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US10/041,369 US7314483B2 (en) 2000-11-16 2002-01-08 Stent graft with branch leg
US10/041,369 2002-01-08

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MXPA03000282A (en) 2005-02-14
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JP2003230580A (en) 2003-08-19
US7314483B2 (en) 2008-01-01
ATE332113T1 (en) 2006-07-15
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ES2266727T3 (en) 2007-03-01
US20020058986A1 (en) 2002-05-16
CA2415975C (en) 2011-03-22
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JP4278988B2 (en) 2009-06-17
DE60306556T2 (en) 2007-06-21

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