US5385580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-supporting woven vascular graft
Assignee: Maquet Cardiovascular LLC
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Filing: 1992-09-21
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Granted: 1995-01-31
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Expires: 2012-09-21
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 a 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
2026-10-22 23:52
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: 47
Claim 1
Independent Claim
51 words
A self-supporting tubular woven synthetic vascular graft having a continuous uniform surface, comprising: a filling yarn including a stiffening component woven together with multifilament yarn throughout the weave, the stiffening component to provide radial burst strength, dimensional stability and radial rigidity sufficient to maintain the lumen of the tubular structure open.
Claim 2
Dependent Claim
51 words
A self-supporting tubular woven synthetic vascular graft having a continuous uniform surface, comprising: a filling yarn including a stiffening component woven together with multifilament yarn throughout the weave, the stiffening component to provide radial burst strength, dimensional stability and radial rigidity sufficient to maintain the lumen of the tubular structure open.
Claim 3
Dependent Claim
16 words
The woven synthetic vascular graft of claim 1, wherein the stiffening component is a textile yarn.
Claim 4
Dependent Claim
16 words
The woven synthetic vascular graft of claim 2, wherein the textile yarn is a monofilament yarn.
Claim 5
Dependent Claim
19 words
A woven synthetic vascular graft of claim 3, wherein the monofilament filling yarn is twisted together with multifilament yarns.
Claim 6
Dependent Claim
18 words
The woven synthetic vascular graft of claim 3, wherein the monofilament textile yarn is a polyethylene terephthalate yarn.
Claim 7
Dependent Claim
18 words
The woven synthetic vascular graft of claim 3, further including a plurality of warp ends including multifilament yarns.
Claim 8
Dependent Claim
15 words
The woven synthetic vascular graft of claim 6, wherein the warp ends include elastomeric yarns.
Claim 9
Dependent Claim
53 words
A self-supporting tubular woven synthetic vascular graft, comprising: a plurality of warp ends including multifilament yarns; and a filling yarn including a stiffening component woven together with multifilament yarn throughout the weave, the stiffening component being a monofilament yarn to provide radial dimensional stability to maintain the lumen of the tubular structure open.
Claim 10
Dependent Claim
53 words
A self-supporting tubular woven synthetic vascular graft, comprising: a plurality of warp ends including multifilament yarns; and a filling yarn including a stiffening component woven together with multifilament yarn throughout the weave, the stiffening component being a monofilament yarn to provide radial dimensional stability to maintain the lumen of the tubular structure open.
Claim 11
Dependent Claim
14 words
The woven vascular graft of claim 8, wherein the multifilament yarns are polyethylene terephthalate.
Claim 12
Dependent Claim
16 words
The woven vascular graft of claim 8, wherein the monofilament component is a polyethylene terephthalate yarn.
Claim 13
Dependent Claim
19 words
The woven vascular graft of claim 8, wherein the filling yarn includes monofilament yarn twisted together with multifilament yarn.
Claim 14
Dependent Claim
19 words
The woven vascular graft of claim 11, wherein the multifilament component of the filling yarn is polyethylene terephthalate yarn.
Claim 15
Dependent Claim
20 words
The woven vascular graft of claim 12, wherein the multifilament and monofilament components of the filling yarn are polyethylene terephthalate.
Claim 16
Dependent Claim
26 words
The woven vascular graft of claim 13, wherein the monofilament component of the filling yarn is polyethylene terephthalate wound together with preshrunk, texturized multifilament polyethylene terephthalate.
Claim 17
Dependent Claim
16 words
The woven vascular graft of claim 14, wherein the multifilament yarn of the warp is preshrunk.
Claim 18
Dependent Claim
14 words
The woven vascular graft of claim 15, wherein the preshrunk yarn is polyethylene terephthalate.
Claim 19
Dependent Claim
17 words
The woven vascular graft of claim 8, including a plurality of warp ends of an elastomeric yarn.
Claim 20
Dependent Claim
14 words
The woven vascular graft of claim 17, wherein the elastomeric yarn is a polyurethane.
Claim 21
Dependent Claim
16 words
The woven vascular graft of claim 17, wherein the elastomeric yarn is a styrene-ethylene-butylene-styrene block copolymer.
Claim 22
Dependent Claim
21 words
The woven vascular graft of claim 8, wherein the multifilament warp yarns include preshrunk texturized and unshrunk untexturized polyethylene terephthalate yarn.
Claim 23
Dependent Claim
21 words
The woven vascular graft of claim 8, wherein the multifilament warp yarns include preshrunk texturized and unshrunk texturized polyethylene terephthalate yarn.
Claim 24
Dependent Claim
26 words
The woven vascular graft of claim 8, wherein the warp ends include a plurality of elastomeric yarns, and the elastomeric yarn alternates with the multifilament yarn.
Claim 25
Dependent Claim
20 words
The woven vascular graft of claim 22, wherein two ends of multifilament yarn alternate with one end of elastomeric yarn.
Claim 26
Dependent Claim
26 words
The woven vascular graft of claim 8, wherein the graft has at least one velour surface of a plurality of warp pile ends of multifilament yarn.
Claim 27
Dependent Claim
18 words
The woven vascular graft of claim 24, wherein the warp pile end alternates between each warp ground ends.
Claim 28
Dependent Claim
38 words
The woven vascular graft of claim 25, wherein the vascular graft is a tube with a single outside velour surface and a smooth interior surface, the velour surface formed from warp pile yarns of unshrunk texturized multifilament yarn.
Claim 29
Dependent Claim
17 words
The woven vascular graft of claim 26, wherein the warp pile yarn is unshrunk texturized polyethylene terephthalate.
Claim 30
Dependent Claim
20 words
The woven vascular graft of claim 27, wherein the warp pile yarn is 2/40/27 (1.5s) unshrunk texturized polyethylene terephthalate yarn.
Claim 31
Dependent Claim
38 words
The woven vascular graft of claim 28, wherein the warp ground yarns include 1/70/54 (5z) unshrunk untexturized polyethylene terephthalate yarn and 140 denier polyurethane elastomeric yarn, alternating two ends of multifilament yarn and one end of elastomeric yarn.
Claim 32
Dependent Claim
44 words
The woven vascular graft of claim 29, wherein the warp ground yarns include 1/70/54 (5z) preshrunk untexturized polyethylene terephthalate yarn and 5 mil elastomeric styrene-ethylene-butylene-styrene monofilament yarn, alternating two ends of multifilament yarn and one end of monofilament 5 mil styrene-ethylene-butylene-styrene block copolymer yarn.
Claim 33
Dependent Claim
20 words
The woven vascular graft of claim 30, wherein the warp pile yarn is 2/40/27 (1.5s) unshrunk texturized polyethylene terephthalate yarn.
Claim 34
Dependent Claim
28 words
The woven vascular graft of claim 31, wherein the filling yarn is 5 mil monofilament polyethylene terephthalate yarn wound together with 2/40/27 (1.5z) preshrunk texturized polyethylene terephthalate yarn.
Claim 35
Dependent Claim
16 words
The woven vascular graft of claim 8, wherein the ends of the tube have been cauterized.
Claim 36
Dependent Claim
21 words
The woven vascular graft of claim 8, wherein the tubular graft is bifurcated having a main body portion and two branches.
Claim 37
Dependent Claim
18 words
The woven vascular graft of claim 8, wherein the graft has a circular cross-section and is straight longitudinally.
Claim 38
Dependent Claim
20 words
The woven vascular graft of claim 8, wherein the graft has a circular cross-section and is curved along its length.
Claim 39
Dependent Claim
63 words
A self-supporting tubular external velour woven synthetic vascular graft, comprising: a plurality of warp ground yarns including multifilament yarn and elastomeric yarn; a plurality of warp pile ends of multifilament yarn; and a filling yarn including a monofilament yarn woven together with multifilament yarn throughout the weave, the monofilament yarn being a stiffening component to maintain the lumen of the tubular structure open.
Claim 40
Dependent Claim
63 words
A self-supporting tubular external velour woven synthetic vascular graft, comprising: a plurality of warp ground yarns including multifilament yarn and elastomeric yarn; a plurality of warp pile ends of multifilament yarn; and a filling yarn including a monofilament yarn woven together with multifilament yarn throughout the weave, the monofilament yarn being a stiffening component to maintain the lumen of the tubular structure open.
Claim 41
Dependent Claim
20 words
The woven vascular graft of claim 37, wherein the filling yarn is a monofilament yarn wound together with multifilament yarn.
Claim 42
Dependent Claim
24 words
The woven vascular graft of claim 37, wherein the filling yarn is monofilament polyethylene terephthalate wound together with preshrunk texturized multifilament polyethylene terephthalate yarns.
Claim 43
Dependent Claim
23 words
The woven vascular graft of claim 39, wherein the warp ground ends are alternating preshrunk untexturized multifilament polyethylene terephthalate yarns and elastomeric yarns.
Claim 44
Dependent Claim
40 words
The woven vascular graft of claim 40, wherein the vascular graft is a tube with a single outside velour surface and a smooth interior surface, the velour surface formed from warp pile ends of unshrunk texturized multifilament polyethylene terephthalate yarn.
Claim 45
Dependent Claim
20 words
The woven vascular graft of claim 41, wherein the warp pile yarns are 2/40/27 (1.5s) unshrunk texturized polyethylene terephthalate yarns.
Claim 46
Dependent Claim
34 words
The woven vascular graft of claim 42, wherein the warp ground ends include 1/70/60 (5z) preshrunk untexturized yarn and elastomeric monofilament yarn, alternating two ends of multifilament yarn and one end of elastomeric yarn.
Claim 47
Dependent Claim
28 words
The woven vascular graft of claim 43, wherein the fill yarn is 5 mil monofilament polyethylene terephthalate yarn wound together with 2/40/27 (1.5s) preshrunk texturized polyethylene terephthalate 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) | 1998-01-30 | 1998-08-01 | 1999-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-30 | 2002-08-01 | 2003-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-30 | 2006-08-01 | 2007-01-31 | $7700.00 | Window Closed / Lapsed |