Patent US5496364A successfully refreshed from Google Patents.
US5496364A
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US
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Self-supporting woven vascular graft
Assignee: Maquet Cardiovascular LLC
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Filing: 1994-01-31
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Granted: 1996-03-05
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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
2026-10-23 22:23
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; D; D03; D03D; D03D3/00; D03D3/02; 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: 53
Claim 1
Independent Claim
77 words
A self-supporting tubular woven synthetic vascular graft, comprising: at least one warp yarn and at least one filling yarn woven together to form a weave, and said filling yarn including a stiffening component to provide radial burst strength, dimensional stability and radial rigidity sufficient to maintain the lumen of the tubular structure open without crimping; and wherein said stiffening component is present throughout the length of the weave and is present in each pick of the weave.
Claim 2
Dependent Claim
77 words
A self-supporting tubular woven synthetic vascular graft, comprising: at least one warp yarn and at least one filling yarn woven together to form a weave, and said filling yarn including a stiffening component to provide radial burst strength, dimensional stability and radial rigidity sufficient to maintain the lumen of the tubular structure open without crimping; and wherein said stiffening component is present throughout the length of the weave and is present in each pick of the weave.
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
18 words
The woven synthetic vascular graft of claim 3, wherein the monofilament filling yarn is combined 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
14 words
The woven synthetic vascular graft of claim 1, wherein the stiffening component is non-fusible.
Claim 10
Dependent Claim
27 words
The woven vascular graft of claim 1, wherein the tubular graft is bifurcated having a main body portion and two branches connected to the main body portion.
Claim 11
Dependent Claim
72 words
A self-supporting tubular woven synthetic vasular graft, comprising: a plurality of warp yarns woven with at least one filling yarn to provide a weave; and wherein said filling yarn comprises a 2-ply yarn, one of said plies comprising a stiffening component which is set in a circumferential condition to provide radial burst strength, dimensional stability and radial rigidity sufficient to maintain the lumen of the tubular structure open and self-supporting without crimping.
Claim 12
Dependent Claim
72 words
A self-supporting tubular woven synthetic vasular graft, comprising: a plurality of warp yarns woven with at least one filling yarn to provide a weave; and wherein said filling yarn comprises a 2-ply yarn, one of said plies comprising a stiffening component which is set in a circumferential condition to provide radial burst strength, dimensional stability and radial rigidity sufficient to maintain the lumen of the tubular structure open and self-supporting without crimping.
Claim 13
Dependent Claim
14 words
The woven vascular graft of claim 10, wherein the warp yarns are polyethylene terephthalate.
Claim 14
Dependent Claim
16 words
The woven vascular graft of claim 10, wherein the stiffening component is a polyethylene terephthalate yarn.
Claim 15
Dependent Claim
19 words
The woven vascular graft of claim 10, wherein the filling yarn includes monofilament yarn twisted together with multifilament yarn.
Claim 16
Dependent Claim
19 words
The woven vascular graft of claim 13, wherein the multifilament component of the filling yarn is polyethylene terephthalate yarn.
Claim 17
Dependent Claim
20 words
The woven vascular graft of claim 14, wherein the multifilament and monofilament components of the filling yarn are polyethylene terephthalate.
Claim 18
Dependent Claim
26 words
The woven vascular graft of claim 15, wherein the monofilament component of the filling yarn is polyethylene terephthalate wound together with preshrunk, texturized multifilament polyethylene terephthalate.
Claim 19
Dependent Claim
16 words
The woven vascular graft of claim 16, wherein the multifilament yarn of the warp is preshrunk.
Claim 20
Dependent Claim
14 words
The woven vascular graft of claim 17, wherein the preshrunk yarn is polyethylene terephthalate.
Claim 21
Dependent Claim
20 words
The woven vascular graft of claim 10, including a plurality of warp yarns which include at least one elastomeric yarn.
Claim 22
Dependent Claim
14 words
The woven vascular graft of claim 19, wherein the elastomeric yarn is a polyurethane.
Claim 23
Dependent Claim
16 words
The woven vascular graft of claim 19, wherein the elastomeric yarn is a styrene-ethylene-butylene-styrene block copolymer.
Claim 24
Dependent Claim
20 words
The woven vascular graft of claim 10, wherein the warp yarns include preshrunk texturized and unshrunk untexturized polyethylene terephthalate yarn.
Claim 25
Dependent Claim
20 words
The woven vascular graft of claim 10, wherein the warp yarns include preshrunk texturized and unshrunk texturized polyethylene terephthalate yarn.
Claim 26
Dependent Claim
29 words
The woven vascular graft of claim 10, wherein the warp yarns include a plurality of multifilament yarns and elastomeric yarns, and the elastomeric yarn alternates with the multifilament yarn.
Claim 27
Dependent Claim
20 words
The woven vascular graft of claim 24, wherein two ends of multifilament yarn alternate with one end of elastomeric yarn.
Claim 28
Dependent Claim
25 words
The woven vascular graft of claim 10, wherein the graft has at least one velour surface of a plurality of warp pile of multifilament yarn.
Claim 29
Dependent Claim
17 words
The woven vascular graft of claim 26, wherein the warp pile yarns alternate each warp ground yarn.
Claim 30
Dependent Claim
38 words
The woven vascular graft of claim 37, 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 31
Dependent Claim
17 words
The woven vascular graft of claim 28, wherein the warp pile yarn is unshrunk texturized polyethylene terephthalate.
Claim 32
Dependent Claim
20 words
The woven vascular graft of claim 29, wherein the warp pile yarn is 2/40/27 (1.5s) unshrunk texturized polyethylene terephthalate yarn.
Claim 33
Dependent Claim
38 words
The woven vascular graft of claim 30, 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 34
Dependent Claim
44 words
The woven vascular graft of claim 31, wherein the warp ground yarns include 1/70/54 (5z) preshrunk untexturized polyethylene terephthalate yarn and 5 mil elastomeric styrene-ethenylene-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 35
Dependent Claim
20 words
The woven vascular graft of claim 37, wherein the warp pile yarn is 2/40/27 (1.5s) unshrunk texturized polyethylene terephthalate yarn.
Claim 36
Dependent Claim
28 words
The woven vascular graft of claim 33, 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 37
Dependent Claim
16 words
The woven vascular graft of claim 10, wherein the ends of the tube have been cauterized.
Claim 38
Dependent Claim
21 words
The woven vascular graft of claim 10, wherein the tubular graft is bifurcated having a main body portion and two branches.
Claim 39
Dependent Claim
18 words
The woven vascular graft of claim 10, wherein the graft has a circular cross-section and is straight longitudinally.
Claim 40
Dependent Claim
20 words
The woven vascular graft of claim 10, wherein the graft has a circular cross-section and is curved along its length.
Claim 41
Dependent Claim
15 words
The woven vascular graft of claim 10, wherein the stiffening component is a non-fusible yarn.
Claim 42
Dependent Claim
27 words
The woven vascular graft of claim 10, wherein the tubular graft is bifurcated having a main body portion and two branches connected to the main body portion.
Claim 43
Dependent Claim
65 words
A self-supporting tubular single velour woven synthetic vascular graft, comprising: a plurality of warp ground yarns including multifilament yarn; a plurality of warp pile yarns of multifilament yarn; and a filling yarn comprising a monofilament yarn wound together with multifilament yarn including a stiffening component woven throughout the weave, the stiffening component to maintain the lumen of the tubular structure open and self-supporting without crimping.
Claim 44
Dependent Claim
65 words
A self-supporting tubular single velour woven synthetic vascular graft, comprising: a plurality of warp ground yarns including multifilament yarn; a plurality of warp pile yarns of multifilament yarn; and a filling yarn comprising a monofilament yarn wound together with multifilament yarn including a stiffening component woven throughout the weave, the stiffening component to maintain the lumen of the tubular structure open and self-supporting without crimping.
Claim 45
Dependent Claim
24 words
The woven vascular graft of claim 41, wherein the filling yarn is monofilament polyethylene terephthalate wound together with preshrunk texturized multifilament polyethylene terephthalate yarns.
Claim 46
Dependent Claim
23 words
The woven vascular graft of claim 42, wherein the warp ground yarns are alternating preshrunk untexturized multifilament polyethylene terephthalate yarns and elastomeric yarns.
Claim 47
Dependent Claim
40 words
The woven vascular graft of claim 43, 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 48
Dependent Claim
20 words
The woven vascular graft of claim 44, wherein the warp pile yarns are 2/40/27 (1.5s) unshrunk texturized polyethylene terephthalate yarns.
Claim 49
Dependent Claim
34 words
The woven vascular graft of claim 45, wherein the warp ground yarns 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 50
Dependent Claim
28 words
The woven vascular graft of claim 46, wherein the fill yarn is 5 mil monofilament polyethylene terephthalate yarn wound together with 2/40/27 (1.5s) preshrunk texturized polyethylene terephthalate yarn.
Claim 51
Dependent Claim
15 words
The woven vascular graft of claim 41, wherein the stiffening component is a non-fusible yarn.
Claim 52
Dependent Claim
15 words
The woven vascular graft of claim 41, wherein the warp ground yarns include elastomeric yarn.
Claim 53
Dependent Claim
27 words
The woven vascular graft of claim 41, wherein the tubular graft is bifurcated having a main body portion and two branches connected to the main body portion.
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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) | 1999-03-05 | 1999-09-04 | 2000-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-03-05 | 2003-09-04 | 2004-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-03-05 | 2007-09-04 | 2008-03-05 | $7700.00 | Window Closed / Lapsed |