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EP0747020A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Improved barb and expandable transluminal graft prothesis for repair of aneurysm

Assignee: Cook Inc
•
Filing: 1996-02-14
•
Granted: —
•
Expires: 2016-02-14
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Abstract

Abstract An improved prosthesis assembly (422) for placement at an aneurysm in the bifurcated lumen of the aorta and the common iliac arteries extending therefrom. The prosthesis assembly includes a single lumen graft (1) or a bifurcated lumen graft having a main body and ipsilateral and contralateral limbs extending therefrom. The main body and ipsilateral and contralateral limbs each have a spring assembly (12,31) about their orifices for conforming that portion of the graft to the wall of the vessel lumen. The main body spring assembly has an improved barb (10) with first (401) and second (414) attachment arms for securely anchoring the spring assembly to the vessel wall. The improved barb includes two forms of mechanical attachment such as, for example, a helical coil body (405) positioned around a spring assembly arm (15) and, secondly, a bonding material such as, for example, solder for fixedly attaching the coil and spring assembly arm. The attachment arms of the barb are positioned longitudinally along the spring assembly arm for engagement with the vessel wall without engaging each other when the spring assembly is in a collapsed condition. The ipsilateral and contralateral spring assemblies (31) also include the improved barb with only a single attachment arm for anchoring the spring assembly to the vessel wall.

Inventors

  • 👤 Neal E. Fearnot
  • 👤 Timothy A. Chuter
  • 👤 Michael P. Debruyne

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 21:10
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61B; A61B17/00; A61B17/04; A61B17/0469; A61B17/11; A61B17/115; A61F2/95; A61F2/954; A61F2/958; A61F2/962; A61F2/82; A61F2/848; A61F2/86; A61F2/89; A61F2002/065; A61F2002/067; A61F2002/075; A61F2002/8483; A61F2002/8486; A61F2002/9505; A61F2002/9511; A61F2002/9534; A61F2220/00; A61F2220/0008; A61F2220/0016; A61F2220/0025; A61F2220/0075

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 81 words
A spring assembly (12) for supporting a transluminal graft (1), within a lumen when said assembly is in an expanded operative condition, wherein the spring assembly comprises a barb arrangement (10) with a body (400) having a part (405) thereof attached to an arm (15) of the spring assembly, and having a member (401) extending from the said part and comprising a barb (408) which extends toward the exterior (403) of the assembly when the latter is in the operative condition.
Claim 2
Dependent Claim 27 words
An assembly according to claim 1, wherein the member extends longitudinally along and adjacent to the arm of the assembly, and in the interior of the assembly.
Claim 3
Dependent Claim 45 words
An assembly according to claim 2, wherein the said part of the body is a coil (405) with a passage (406) through which the said arm extends and to which the said member is fixedly attached, and wherein the said member extends from the coil.
Claim 4
Dependent Claim 39 words
An assembly according to claim 2 or 3, wherein the barb is a hook (408) formed on the distal end of the said member, said hook having a bevelled surface transverse to the longitudinal axis of the said member.
Claim 5
Dependent Claim 36 words
An assembly according to claim 1,2,3 or 4, wherein the barb arrangement further comprises a second member (414) extending from the said part and having a barb (418) extending toward the exterior of the spring assembly.
Claim 6
Dependent Claim 34 words
An assembly according to claim 5, wherein the second member extends longitudinally along the arm of the spring assembly and exterior thereto, and in a direction opposite to that of the first mentioned member.
Claim 7
Dependent Claim 30 words
An assembly according to claim 6, wherein the second member is inclined outwardly from the said arm and has an end which is more steeply inclined and which is bevelled.
Claim 8
Dependent Claim 39 words
A surgical device comprising a transluminal graft for implanting in a lumen, and a spring assembly according to any one of claims 1 to 7, wherein the assembly is to be located at the upstream end of the graft.
Claim 9
Dependent Claim 29 words
A device according to claim 8, wherein another assembly according to any one of claims 1 to 4 is to be located at the distal end of the graft.
Claim 10
Dependent Claim 52 words
A surgical device comprising a transluminal graft for implanting in a lumen, and a spring assembly according to any one of claims 5 to 7, wherein the assembly is to be located at the upstream end of the graft, and wherein the graft is to be located within the second member (414).
Claim 11
Dependent Claim 114 words
In a transluminal graft (1;206) having a spring assembly (12,31;301.302,303) with a barb (10;205), an improvement in the barb comprising: a helical coil (405) having a passage (406) with an arm (15) of the spring assembly extending longitudinally therethrough and a first attachment arm (401) extending longitudinally from one end (419) of the helical coil and through an open end (420) of the spring assembly, wherein the coil is attached to the spring assembly arm, the first attachment arm extends longitudinally along the spring assembly arm and in an interior (404) of the spring assembly, and an end (402) of the first attachment arm is positioned toward an exterior (403) of the spring assembly.

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