US5487858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making self-supporting woven vascular graft
Assignee: Maquet Cardiovascular LLC
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Filing: 1994-01-31
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Granted: 1996-01-30
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Expires: 2014-01-31
Abstract
Abstract A woven synthetic fabric tubular vascular graft including, a stiffening component in the filling yarn is self supporting without crimping the walls of the graft. The graft is woven from warp ends of multifilament polyester yarns and elastomeric yarns in the warp and a filling yarn which includes multifilament and monofilament polyester yarns which have been twisted together. Longitudinal and radial compliance provide for improved kink resistance making the tubular grafts suitable for use in medium and small diameter peripheral applications. A preferred graft has an outer velour surface and a smooth inner surface.
Inventors
- 👤 Peter J. Schmitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:39
CPC Classifications
D; D03; D03D; D03D3/00; D03D3/02; A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; D03D15/00; D03D15/20; D03D15/283; D03D15/40; D03D15/41; D03D15/44; D03D15/46; D03D15/49; D03D15/50; D03D15/56; D03D15/573; D03D27/00; A61F2002/065; D10; D10B; D10B2321/00; D10B2321/04; D10B2321/042; D10B2331/00; D10B2331/04; D10B2331/10; D10B2401/00; D10B2401/04; D10B2401/041; D10B2401/06; D10B2401/061; D10B2401/062; D10B2509/00; D10B2509/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
72 words
A process for preparing a self-supporting woven vascular graft, comprising: weaving a plurality of warp yarns with a filling yarn including a stiffening component to provide a woven tubular fabric; scouring said woven tubular fabric; and heat setting said woven tubular fabric to set said stiffening component in a generally rounded configuration thereby providing radial rigidity with resiliency to said woven tubular fabric without crimping resulting in a self-supporting woven vascular graft.
Claim 2
Dependent Claim
72 words
A process for preparing a self-supporting woven vascular graft, comprising: weaving a plurality of warp yarns with a filling yarn including a stiffening component to provide a woven tubular fabric; scouring said woven tubular fabric; and heat setting said woven tubular fabric to set said stiffening component in a generally rounded configuration thereby providing radial rigidity with resiliency to said woven tubular fabric without crimping resulting in a self-supporting woven vascular graft.
Claim 3
Dependent Claim
16 words
The process of claim 1, including weaving the tubular fabric with warp yarns of elastomeric yarn.
Claim 4
Dependent Claim
18 words
The process of claim 1, including weaving the tubular fabric with the stiffening component including a monofilament yarn.
Claim 5
Dependent Claim
27 words
The process of claim 1, wherein heat setting is carried out by placing the tubular fabric on a straight mandrel and heating to set the tubular fabric.
Claim 6
Dependent Claim
28 words
The process of claim 1, wherein heat setting is carried out by placing the tubular fabric on a curved mandrel and applying heat to set the tubular fabric.
Claim 7
Dependent Claim
16 words
The process of claim 1, including weaving the tubular fabric with warp yarns including multifilament yarns.
Claim 8
Dependent Claim
17 words
The process of claim 1, including weaving the tubular fabric with the filling yarn including multifilament yarns.
Claim 9
Dependent Claim
28 words
The process of claim 1, including weaving the tubular fabric into a bifurcated tube having a main body portion and two branches connected to the main body portion.
Claim 10
Dependent Claim
16 words
The process of claim 1, including weaving the tubular fabric with warp yarns including elastomeric yarn.
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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) | 1999-01-29 | 1999-07-31 | 2000-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-01-29 | 2003-07-31 | 2004-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-01-29 | 2007-07-31 | 2008-01-30 | $7700.00 | Window Closed / Lapsed |