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EP0657147A2
Expired / Lapsed
EP
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Non-migrating vascular prosthesis and minimally invasive placement system therefor
Assignee: CR Bard Inc
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Filing: 1994-10-25
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Granted: —
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Expires: 2014-10-25
Abstract
Abstract A graft assembly 10 for securely positioning a graft 20 at a predetermined location across an abdominal aortic aneurysm. The assembly includes a resilient self-expanding anchor 30 that is secured to the graft. The anchor is characterized as being at least as long as the graft, and further as being adapted to be removed or repositioned at any time prior to complete deployment in the patient.
Inventors
- 👤 Timothy Robinson
- 👤 Michael Weiser
- 👤 John Carey
- 👤 Dennis Kujawski
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-22 23:31
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/95; A61F2/9522; A61F2/9525; A61F2/962; A61F2/966; A61F2/82; A61F2/848; A61F2/86; A61F2/89; A61F2/90; A61F2/958; A61F2002/075; A61F2002/825; A61F2002/8486; A61F2002/9665; A61F2220/00; A61F2220/0008; A61F2220/0016; A61F2220/0025; A61F2220/0075; Y; Y10; Y10S; Y10S623/00; Y10S623/92; Y10S623/921
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
109 words
A removable repair assembly for placement in a blood vessel which comprises: a graft having a proximal end, a distal end, and an axial length; and an anchor having a proximal end, a distal end and an axial length at least equal to that of the graft, wherein at least the proximal end and the distal end of the anchor are resiliently expandable and connected to each other by at least two longitudinal segments, each of the segments extending between the proximal and distal ends of the anchor and further being constructed and arranged to transmit a radial compression force from one end of the anchor to the other.
Claim 2
Dependent Claim
28 words
A repair assembly as in claim 1 wherein at least one of the proximal or distal ends of the anchor extends beyond its respective end of the graft.
Claim 3
Dependent Claim
20 words
A repair assembly as in claim 1 or 2 wherein the anchor is secured to the interior of the graft.
Claim 4
Dependent Claim
20 words
A repair assembly as in claim 1 or 2 wherein the anchor is secured to the exterior of the graft.
Claim 5
Dependent Claim
39 words
A repair assembly as in claim 1 or 2 wherein a first portion of the anchor is secured to the interior of the graft and a second portion of the anchor is secured to the exterior of the graft.
Claim 6
Dependent Claim
25 words
A repair assembly as in any one the preceding claims wherein the anchor is constructed to have a resilient expansion force along its entire length.
Claim 7
Dependent Claim
19 words
A repair assembly as in claim 6 wherein the resilient expansion force varies along the length of the anchor.
Claim 8
Dependent Claim
21 words
A repair assembly as in claim 7 wherein the resilient expansion force is greatest at the distal end of the anchor.
Claim 9
Dependent Claim
23 words
A repair assembly as in claim 7 wherein the resilient expansion force is greatest at the proximal and distal ends of the anchor.
Claim 10
Dependent Claim
34 words
A repair assembly as in any one of the preceding claims, wherein the anchor comprises a self-expanding proximal segment and a self-expanding distal segment, the segments being connected by at least one longitudinal strut.
Claim 11
Dependent Claim
27 words
A repair assembly as in claim 10 wherein at least one of the self-expanding segments comprises a single continuous segment of wire having a series of bends.
Claim 12
Dependent Claim
54 words
A repair assembly as in any one of the preceding claims, wherein the anchor comprises a single continuous segment of wire having a plurality of bends at each end of the anchor, each bend being joined to two longitudinal wire segments, wherein each longitudinal wire segment is joined to an adjacent longitudinal wire segment.
Claim 13
Dependent Claim
19 words
A repair assembly as in claim 12 wherein each longitudinal segment is joined to two adjacent longitudinal wire segments.
Claim 14
Dependent Claim
20 words
A repair assembly as in claim 12 or 13 wherein the adjacent longitudinal wire segments are joined at a point.
Claim 15
Dependent Claim
150 words
An abdominal aortic repair device comprising: a cylindrical graft that is adapted to be positioned within a blood vessel, the graft having a proximal end, a distal end, and an axial length; and a self-expanding anchor secured to the graft, the anchor adapted to inhibit migration of the graft once it is properly positioned at a desired location in a blood vessel, wherein the anchor has a proximal end, a distal end and an axial length at least equal to that of the graft, wherein least the proximal end and the distal end of the anchor are resiliently expandable and connected to each other by at least two longitudinal segments; wherein each of the segments extends between the proximal and distal ends of the anchor, and wherein each of the segments is constructed and arranged to transmit a radial compression force from one end of the anchor to the other.
Claim 16
Independent Claim
108 words
A device for positioning a resiliently expandable implant within a blood vessel which comprises: a) a tubular sheath for maintaining the implant in a radially compressed configuration, the sheath having a proximal end and a distal end and being open at its distal end and axially moveable relative to the implant, b) a stay positioned within the proximal end of the sheath to retain the implant as the sheath is withdrawn, the sheath being axially moveable relative to the stay; and c) an implant retainer adapted to engage the implant, the sheath being axially moveable relative to the retainer and the retainer being stationary relative to the stay.
Claim 17
Dependent Claim
17 words
A device as in claim 16 wherein the implant retainer is an integral part of the stay.
Claim 18
Dependent Claim
37 words
A device as in claim 16 or 17 wherein the implant retainer comprises a central hub having a plurality of spokes extending radially therefrom, each of the spokes adapted to engage a proximal portion of the implant.
Claim 19
Dependent Claim
24 words
A device as in claim 18 wherein the spokes are adapted to engage the implant until the implant is fully released from the sheath.
References Cited (Backward Citations)
No citation records indexed.
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