Patent US6520986B2 successfully refreshed from Google Patents.
US6520986B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kink resistant stent-graft
Assignee: W.L. Gore and Associates Inc
•
Filing: 2001-06-26
•
Granted: 2003-02-18
•
Expires: 2021-06-26
Abstract
Abstract A stent-graft including a stent member having an inner surface and an outer surface, a generally tubular graft member and a coupling member that couples the stent member to the graft member. The coupling member, which is the preferred embodiment is in the form of a ribbon, covers only a portion of the inner or outer surface of the stent member and secures the stent member and graft member to one another. Alternatively, the coupling member can be described as interconnecting less than entirely the inner or outer surface of the graft member to the stent member. With this construction, regions of the stent member do not interfere with the coupling member. Shear stresses between the stent member and the coupling member and the risk of tearing the graft or coupling member or delamination therebetween may be reduced as compared to a fully enveloped stent member. This construction also provides improved flexibility and kink resistance.
Inventors
- 👤 Gerald Ray Martin
- 👤 Lilip Lau
- 👤 Scott N. Stonebrook
- 👤 Sharon Lam
- 👤 Troy Thornton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:24
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/82; A61F2/844; A61F2/86; A61F2/88; A61F2/95; A61F2/89; A61F2/90; A61F2002/075; A61F2002/9505; A61F2002/9511; A61F2/962; A61F2/966; A61F2002/9665; A61F2210/00; A61F2210/0014; A61F2210/0019; A61F2220/00; A61F2220/0025; A61F2220/0075; A61F2220/0091; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/0041; A61F2230/006; A61F2230/0063; A61F2230/0073; A61F2230/0078; A61F2250/00; A61F2250/0058; A61F2250/0096; A61F2250/0098
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
100 words
A stent-graft comprising: a substantially tubular shaped stent member having an inner surface, an outer surface, and configured from multiple turns of an undulating element, said stent member having substantially in-phase undulations; a generally tubular graft member arranged within said stent member; and a ribbon adhered in contact with only a portion of at least one of the inner and outer surfaces of said stent member and securing the stent member and graft member to one another thereby permitting unrestrained movement of at least a portion of at least one of said undulations relative to at least said graft member.
Claim 2
Dependent Claim
100 words
A stent-graft comprising: a substantially tubular shaped stent member having an inner surface, an outer surface, and configured from multiple turns of an undulating element, said stent member having substantially in-phase undulations; a generally tubular graft member arranged within said stent member; and a ribbon adhered in contact with only a portion of at least one of the inner and outer surfaces of said stent member and securing the stent member and graft member to one another thereby permitting unrestrained movement of at least a portion of at least one of said undulations relative to at least said graft member.
Claim 3
Dependent Claim
15 words
The stent-graft of claim 1 wherein said undulating element is arranged in a helical configuration.
Claim 4
Dependent Claim
25 words
The stent-graft of claim 2 wherein said ribbon is arranged in a helical configuration with multiple turns, each turn being spaced from an adjacent turn.
Claim 5
Dependent Claim
14 words
The stent graft of claim 3 wherein the spacing between said turns is uniform.
Claim 6
Dependent Claim
18 words
The stent-graft of claim 3 wherein said ribbon covers a portion of at least one of said undulations.
Claim 7
Dependent Claim
16 words
The stent-graft of claim 3 wherein said ribbon is interwoven into a plurality of said undulations.
Claim 8
Dependent Claim
26 words
The stent graft of claim 3 further including a linking member threaded between adjacent turns to maintain undulation in adjacent turns generally in-phase with one another.
Claim 9
Dependent Claim
24 words
The stent-graft of claim 7 wherein a plurality of said undulations are configured to permit therein unrestrained movement of an undulation generally in-phase therewith.
Claim 10
Dependent Claim
15 words
The stent-graft of claim 3 wherein a group of said undulations forms a sinusoidal curve.
Claim 11
Dependent Claim
30 words
The stent-graft of claim 3 wherein said ribbon has a width less than or equal to about three-fourths the average amplitude, measured peak-to-peak, of at least one of said undulations.
Claim 12
Dependent Claim
30 words
The stent-graft of claim 10 wherein said ribbon has a width less than or equal to about two-thirds the average amplitude, measured peak-to-peak, of at least one of said undulations.
Claim 13
Dependent Claim
22 words
The stent-graft of claim 1 wherein said graft member has an average thickness of less than or equal to about 0.006 inch.
Claim 14
Dependent Claim
20 words
The stent-graft of claim 12 wherein said ribbon has an average thickness less than or equal to about 0.005 inch.
Claim 15
Dependent Claim
13 words
The stent-graft of claim 1 wherein said graft member comprises porous expanded polytetrafluoroethylene.
Claim 16
Dependent Claim
12 words
The stent-graft of claim 14 wherein said ribbon comprises porous expanded polytetrafluoroethylene.
Claim 17
Dependent Claim
12 words
The stent-graft of claim 1 wherein said graft member comprises radiopaque fibers.
Claim 18
Dependent Claim
11 words
The stent-graft of claim 1 wherein said stent member comprises nitinol.
Claim 19
Dependent Claim
15 words
The stent-graft of claim 1 wherein said ribbon is adhesively bonded to said graft member.
Claim 20
Dependent Claim
18 words
The stent-graft of claim 1 wherein said ribbon has a generally flat portion that faces said graft member.
Claim 21
Dependent Claim
77 words
A stent-graft comprising: an undulating stent member with substantially in-phase undulations having an inner surface and an outer surface; a generally tubular graft member having an inner surface and an outer surface, one of said stent and graft members surrounding at least a portion of the other; and a discrete ribbon adhered to at least one of said inner and outer surfaces of said stent member to attach said stent member and graft member to one another.
Claim 22
Dependent Claim
77 words
A stent-graft comprising: an undulating stent member with substantially in-phase undulations having an inner surface and an outer surface; a generally tubular graft member having an inner surface and an outer surface, one of said stent and graft members surrounding at least a portion of the other; and a discrete ribbon adhered to at least one of said inner and outer surfaces of said stent member to attach said stent member and graft member to one another.
Claim 23
Dependent Claim
28 words
The stent-graft of claim 20 wherein said ribbon is arranged to include multiple helical turns, at least one of said turns being spaced from a turn adjacent thereto.
Claim 24
Dependent Claim
18 words
The stent-graft of claim 20 wherein said ribbon has a generally flat portion that faces said graft member.
Claim 25
Dependent Claim
29 words
The stent-graft of claim 20 wherein said stent member is tubular, said stent and graft members are generally coaxial, and said graft member is disposed in said stent member.
Claim 26
Dependent Claim
120 words
A stent-graft comprising: a generally tubular stent member having inner and outer circumferences, said stent member including a first member and second member, said first member being arranged in a helical configuration with multiple helical turns and having multiple undulations, each having an apex, said second member being threaded through adjacent apexes in adjacent turns to maintain undulations in adjacent turns generally in-phase with one anther; a generally flat ribbon helically arranged and disposed to contact at least one of said inner and outer circumferences of said stent member and forming multiple windings spaced from one anther; and a generally tubular graft member disposed between said stent member and said helically arranged ribbon and including portions secured to said ribbon.
Claim 27
Dependent Claim
120 words
A stent-graft comprising: a generally tubular stent member having inner and outer circumferences, said stent member including a first member and second member, said first member being arranged in a helical configuration with multiple helical turns and having multiple undulations, each having an apex, said second member being threaded through adjacent apexes in adjacent turns to maintain undulations in adjacent turns generally in-phase with one anther; a generally flat ribbon helically arranged and disposed to contact at least one of said inner and outer circumferences of said stent member and forming multiple windings spaced from one anther; and a generally tubular graft member disposed between said stent member and said helically arranged ribbon and including portions secured to said ribbon.
Claim 28
Dependent Claim
37 words
The stent graft of claim 24 wherein said helically would ribbon is generally spaced from said apexes and forms therewith respective openings, said apexes being configured to permit unrestrained movement of said second member within said openings.
Claim 29
Independent Claim
128 words
A method of deploying a stent graft comprising the steps of: (a) providing a stent-graft having a substantially tubular stent member having an inner surface, an outer surface, and configured from multiple turns of an undulating element, said stent member having substantially in-phase undulations; a generally tubular graft member arranged within said stent member; and a ribbon adhered in contact with only a portion of at least one of the inner and outer surfaces of said stent member and securing the stent member and graft member to one another thereby permitting unrestrained movement of at least a portion of at least one undulation relative to at least said graft member; (b) positioning said stent-graft at a site in a mammal; and (c) deploying said stent-graft at said site.
Claim 30
Independent Claim
128 words
A method of deploying a stent graft comprising the steps of: (a) providing a stent-graft having a substantially tubular stent member having an inner surface, an outer surface, and configured from multiple turns of an undulating element, said stent member having substantially in-phase undulations; a generally tubular graft member arranged within said stent member; and a ribbon adhered in contact with only a portion of at least one of the inner and outer surfaces of said stent member and securing the stent member and graft member to one another thereby permitting unrestrained movement of at least a portion of at least one undulation relative to at least said graft member; (b) positioning said stent-graft at a site in a mammal; and (c) deploying said stent-graft at said site.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-02-17 | 2006-08-19 | 2007-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-02-17 | 2010-08-19 | 2011-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-02-17 | 2014-08-19 | 2015-02-18 | $7700.00 | Window Closed / Lapsed |