Patent US5609626A successfully refreshed from Google Patents.
US5609626A
Expired / Lapsed
US
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Stent devices and support/restrictor assemblies for use in conjunction with prosthetic vascular grafts
Assignee: Edwards Lifesciences Corp
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Filing: 1994-06-22
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Granted: 1997-03-11
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Expires: 2014-06-22
Abstract
Abstract Exovascular and endovascular stent devices and associated support/restrictor assemblies for use in conjunction with prosthetic vascular grafts, including venous valve grafts made from preserved bioprosthetic venous valves. Also disclosed are methods for preparing vascular grafts such as venous valve grafts using the devices and assemblies of the present invention.
Inventors
- 👤 R. C. Quijano
- 👤 Aws Nashef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:51
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2475; A61B; A61B17/00; A61B17/11; A61F2/04; A61F2/06; A61F2/062; A61F2/2412; A61F2/2418; A61F2/07
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
120 words
A vascular implant prosthesis, comprising: a) an exovascular stent comprising: a generally elongate cylindrical body, a first end, a second end, and a hollow bore extending longitudinally therethrough; a first flange extending perpendicularly about the first end of the stent body; a second flange extending perpendicularly about the second end of the stent body; a plurality of apertures formed in the stent body to permit flow of fluid therethrough; b) a bioprosthetic vascular graft comprising a segment of mammalian blood vessel which has been treated with a chemical fixative known to cross link collagen, said bioprosthetic vascular graft being positioned coaxially within the bore of the stent body and affixed to the first and second end flanges of the stent.
Claim 2
Dependent Claim
120 words
A vascular implant prosthesis, comprising: a) an exovascular stent comprising: a generally elongate cylindrical body, a first end, a second end, and a hollow bore extending longitudinally therethrough; a first flange extending perpendicularly about the first end of the stent body; a second flange extending perpendicularly about the second end of the stent body; a plurality of apertures formed in the stent body to permit flow of fluid therethrough; b) a bioprosthetic vascular graft comprising a segment of mammalian blood vessel which has been treated with a chemical fixative known to cross link collagen, said bioprosthetic vascular graft being positioned coaxially within the bore of the stent body and affixed to the first and second end flanges of the stent.
Claim 3
Dependent Claim
25 words
The vascular implant prosthesis of claim 1 wherein the bioprosthetic vascular graft is affixed to the first and second end flanges by way of sutures.
Claim 4
Dependent Claim
17 words
The vascular implant prosthesis of claim 1 wherein said bioprosthetic vascular graft comprises a segment of vein.
Claim 5
Dependent Claim
18 words
The vascular implant prosthesis of claim 3 wherein a venous valve is formed within the segment of vein.
Claim 6
Dependent Claim
27 words
The vascular implant prosthesis of claim 4 wherein the venous valve was disposed in an open position when the vascular graft was treated with said chemical fixative.
Claim 7
Dependent Claim
26 words
The vascular implant of claim 4 wherein the venous valve was disposed in a closed position when the vascular graft was treated with said chemical fixative.
Claim 8
Dependent Claim
17 words
The vascular implant prosthesis of claim 1 wherein the tubular vascular graft comprises a segment of artery.
Claim 9
Dependent Claim
24 words
The vascular implant prosthesis of claim 1 wherein the apertures comprise a plurality of elongate slots formed around the cylindrical body of the stent.
References Cited (Backward Citations)
US2127903A
Cited
US2453056A
Cited
US3254650A
Cited
US3254651A
Cited
US3974526A
Cited
US3988782A
Cited
US4056854A
Cited
US4086665A
Cited
DE2657255A1
Cited
WO1980001460A1
Cited
US4247292A
Cited
WO1981000668A1
Cited
US4352358A
Cited
US4340977A
Cited
WO1982001644A1
Cited
US4816029A
Cited
US4350492A
Cited
EP0303767A1
Cited
US4728328A
Cited
EP0202031A2
Cited
WO1987004915A1
Cited
US4804382A
Cited
US4957508A
Cited
US5108430A
Cited
US5089014A
Cited
US5059211A
Cited
US4851000A
Cited
WO1989002254A1
Cited
US4938740A
Cited
WO1990014804A1
Cited
US5078735A
Cited
US5236447A
Cited
WO1993000868A1
Cited
US5193289A
Cited
US5399352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-03-10 | 2000-09-09 | 2001-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-03-10 | 2004-09-09 | 2005-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-03-10 | 2008-09-09 | 2009-03-11 | $7700.00 | Window Closed / Lapsed |