US5993489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular intraluminal graft and stent combination
Assignee: W.L. Gore and Associates Inc
•
Filing: 1998-02-17
•
Granted: 1999-11-30
•
Expires: 2018-02-17
Abstract
Abstract A tubular intraluminal graft for repairing body conduits, made from at least one layer of porous expanded PTFE film that has a microstructure having fibrils oriented in at least two directions which are substantially perpendicular to each other. The tubular intraluminal graft has a wall thickness of less than about 0.25 mm and may have a longitudinally or helically oriented seamline. Additional reinforcing components such as reinforcing ribs or braids may also be provided.
Inventors
- 👤 James D. Lewis
- 👤 David J. Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:05
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61L; A61L31/00; A61L31/08; A61L31/10; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2002/072; A61F2002/075; A61F2240/00; A61F2240/001; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1369; Y10T428/1376; Y10T428/1397; Y10T428/31504; Y10T428/3154
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
93 words
An intraluminal graft comprising: a) a tube having an exterior surface, a luminal surface, and a longitudinal axis, said tube being comprised of at least one layer of porous expanded polytetrafluoroethylene film wherein the porous expanded polytetrafluoroethylene film has edges and has a microstructure having fibrils oriented in at least two directions which are substantially perpendicular to each other, wherein said tube has a wall thickness of less than about 0.25 mm; and b) a metallic expandable stent; whereby the tube may be secured within a body conduit by the metallic expandable stent.
Claim 2
Dependent Claim
93 words
An intraluminal graft comprising: a) a tube having an exterior surface, a luminal surface, and a longitudinal axis, said tube being comprised of at least one layer of porous expanded polytetrafluoroethylene film wherein the porous expanded polytetrafluoroethylene film has edges and has a microstructure having fibrils oriented in at least two directions which are substantially perpendicular to each other, wherein said tube has a wall thickness of less than about 0.25 mm; and b) a metallic expandable stent; whereby the tube may be secured within a body conduit by the metallic expandable stent.
Claim 3
Dependent Claim
23 words
An intraluminal graft according to claim 1 wherein the tube has a seamline formed by an edge of the porous expanded polytetrafluoroethylene film.
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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) | 2002-11-29 | 2003-05-31 | 2003-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-11-29 | 2007-05-31 | 2007-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-11-29 | 2011-05-31 | 2011-11-30 | $7700.00 | Window Closed / Lapsed |