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US20020058986A1 Expired / Lapsed US ⏱️ 0.0 years remaining

Stent graft with branch leg

Assignee: Cordis US Corp
•
Filing: 2002-01-08
•
Granted: —
•
Expires: 2022-01-08
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Abstract

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.

Inventors

  • 👤 George Landau
  • 👤 Marc Ramer
  • 👤 Kenneth Solovay

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 00:47
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/064; A61F2/07; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61B; A61B17/00; A61B17/064; A61B17/068; A61B17/0682; A61F2/848; A61F2/89; A61F2/95; A61F2002/061; A61F2002/065; A61F2002/067; A61F2002/075; A61F2002/825; A61F2002/91525; A61F2002/91533; A61F2002/91541; A61F2002/9155; A61F2002/91558; A61F2220/00; A61F2220/0025; A61F2220/005; A61F2220/0058; A61F2220/0066; A61F2220/0075; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/001; A61F2230/0013; A61F2230/0028; A61F2230/005; A61F2230/0054; A61F2230/0063; A61F2230/0067; A61F2230/0073; A61F2230/0078; A61F2250/00; A61F2250/0058; A61F2250/006

Claims Analysis

Total Claims: 30
Claim 1
Independent Claim 156 words
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.
Claim 2
Dependent Claim 156 words
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.
Claim 3
Dependent Claim 55 words
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.
Claim 4
Dependent Claim 26 words
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.
Claim 5
Dependent Claim 22 words
4 . The system of claim 3 wherein the stent and graft material defines a fluid flow path through the second prostheses.
Claim 6
Dependent Claim 20 words
5 . The system of claim 4 wherein the fluid flow path is a channel that bypasses the first aneurysm.
Claim 7
Dependent Claim 68 words
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.
Claim 8
Dependent Claim 33 words
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.
Claim 9
Dependent Claim 37 words
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.
Claim 10
Dependent Claim 18 words
9 . The system of claim 8 wherein the branch leg is integrally formed with the third prosthesis.
Claim 11
Dependent Claim 26 words
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.
Claim 12
Dependent Claim 29 words
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.
Claim 13
Dependent Claim 74 words
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.
Claim 14
Dependent Claim 74 words
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.
Claim 15
Dependent Claim 21 words
13 . The prosthesis of claim 12 wherein the stent is comprised of a material exhibiting superelastic properties at body temperature.
Claim 16
Dependent Claim 15 words
14 . The prosthesis of claim 13 wherein the stent is comprised of nickel-titanium alloy.
Claim 17
Dependent Claim 19 words
15 . The prosthesis of claim 12 wherein the aperture is disposed in the intermediate portion of the matrix.
Claim 18
Dependent Claim 19 words
16 . The prosthesis of claim 12 wherein the aperture is disposed in the downstream portion of the matrix.
Claim 19
Dependent Claim 19 words
17 . The prosthesis of claim 12 wherein the aperture is disposed in the upstream portion of the matrix.
Claim 20
Dependent Claim 25 words
18 . The prosthesis of claim 12 wherein the branched stent struts surround the aperture and are disposed adjacent to a perimeter of the aperture.
Claim 21
Dependent Claim 20 words
19 . The prosthesis of claim 12 wherein said branched stent struts and the graft material comprise a branch leg.
Claim 22
Dependent Claim 15 words
20 . The prosthesis of claim 19 wherein the branch leg is covered with foam.
Claim 23
Dependent Claim 17 words
21 . The prosthesis of claim 19 wherein the branch leg is integrally formed with the stent.
Claim 24
Dependent Claim 25 words
22 . The prosthesis of claim 19 wherein the branch leg is biased in a position substantially perpendicular to a longitudinal axis of the stent.
Claim 25
Dependent Claim 84 words
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.
Claim 26
Dependent Claim 84 words
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.
Claim 27
Dependent Claim 24 words
24 . The method of claim 23 further comprising anchoring a downstream end of the second prosthesis in an artery downstream of the aneurysm.
Claim 28
Dependent Claim 21 words
25 . The method of claim 23 further comprising anchoring a downstream end of the branch leg in the second artery.
Claim 29
Dependent Claim 138 words
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.
Claim 30
Dependent Claim 138 words
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.

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