US6136022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaped woven tubular soft-tissue prostheses and methods of manufacturing the same
Assignee: Lifeshield Sciences LLC
•
Filing: 1999-02-09
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Granted: 2000-10-24
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Expires: 2019-02-09
Abstract
Abstract Continuously flat-woven implantable tubular prostheses have seamless woven sections which gradually change the number of warp yarns to smoothly transition, i.e., taper, from one diameter to another. Multi-diameter endoluminal grafts having a variety of shapes and configurations are made using a seamless weaving process without unacceptable voids or gaps in the tubular wall.
Inventors
- 👤 Jose F. Nunez
- 👤 Peter J. Schmitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:54
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; D; D03; D03D; D03D3/00; D03D3/02; D03D3/06; A61F2/82; A61F2/86; A61F2/90; A61F2002/065; A61F2002/067; A61F2002/075; A61F2250/00; A61F2250/0014; A61F2250/0015; A61F2250/0017; A61F2250/0039; D10; D10B; D10B2509/00; D10B2509/06
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
102 words
A flat-woven implantable tubular prosthesis comprising: a first substantially fluid-tight tubular woven section having a plurality of warp yarns and fill yarns, a second substantially fluid-tight tubular woven section having a plurality of warp yarns and fill yarns, a third substantially fluid-tight tubular woven section having a plurality of warp yarns and fill yarns and a substantially fluid-tight woven crotch section having warp yarns from said first woven section gradually interwoven with warp yarns from each of said second and third woven sections to seamlessly contiguously join said first woven section to said second and third woven sections at said crotch section.
Claim 2
Dependent Claim
102 words
A flat-woven implantable tubular prosthesis comprising: a first substantially fluid-tight tubular woven section having a plurality of warp yarns and fill yarns, a second substantially fluid-tight tubular woven section having a plurality of warp yarns and fill yarns, a third substantially fluid-tight tubular woven section having a plurality of warp yarns and fill yarns and a substantially fluid-tight woven crotch section having warp yarns from said first woven section gradually interwoven with warp yarns from each of said second and third woven sections to seamlessly contiguously join said first woven section to said second and third woven sections at said crotch section.
Claim 3
Dependent Claim
28 words
The prosthesis of claim 1, wherein said crotch section includes a gradual change in the number of interlaced warp yarns from said second and said third woven sections.
Claim 4
Dependent Claim
36 words
The prosthesis of claim 2, wherein said gradual change in the number of warp yarns is defined by a change of no more than 3 of said warp yarns for every two of said fill yarns.
Claim 5
Dependent Claim
27 words
The prosthesis of claim 1, wherein said plurality of warp yarns for said second and said third woven sections define respective second and third tubular internal diameters.
Claim 6
Dependent Claim
15 words
The prosthesis of claim 4, wherein said second and said third tubular diameters are different.
Claim 7
Dependent Claim
16 words
The prosthesis of claim 4, wherein said second and said third tubular diameters are the same.
Claim 8
Dependent Claim
27 words
The prosthesis of claim 1, wherein said warp and fill yarns include materials selected from the group consisting of polyester, polypropylene, polyethylene, polyurethane, polytetrafluoroethylene and combinations thereof.
Claim 9
Dependent Claim
30 words
The prosthesis of claim 1, wherein said woven sections include weaving patterns selected from a group consisting of a plain weave, a twill weave, a velour weave and combinations thereof.
Claim 10
Independent Claim
113 words
A method of making a flat-woven implantable tubular prosthesis comprising: weaving a first substantially fluid-tight tubular woven section by using a plurality of warp yarns and fill yarns, weaving a second substantially fluid-tight tubular woven section by using a plurality of warp yarns and fill yarns, weaving a third substantially fluid-tight tubular woven section by using a plurality of warp yarns and fill yarns and weaving a substantially fluid-tight woven crotch section by gradually interweaving warp yarns from said first woven section with warp yarns from each of said second and third woven sections to seamlessly contiguously join said first woven section to said second and third woven sections at said crotch section.
Claim 11
Independent Claim
113 words
A method of making a flat-woven implantable tubular prosthesis comprising: weaving a first substantially fluid-tight tubular woven section by using a plurality of warp yarns and fill yarns, weaving a second substantially fluid-tight tubular woven section by using a plurality of warp yarns and fill yarns, weaving a third substantially fluid-tight tubular woven section by using a plurality of warp yarns and fill yarns and weaving a substantially fluid-tight woven crotch section by gradually interweaving warp yarns from said first woven section with warp yarns from each of said second and third woven sections to seamlessly contiguously join said first woven section to said second and third woven sections at said crotch section.
Claim 12
Dependent Claim
21 words
The method of claim 9 further including gradually engaging or disengaging warp yarns with fill yarns to weave said crotch section.
Claim 13
Dependent Claim
29 words
The method of claim 10, wherein said gradually engaging or disengaging further includes changing no more than 3 of said warp yarns for every two of said fill yarns.
Claim 14
Dependent Claim
31 words
The method of claim 9, said weaving further includes selecting said warp and fill yarns from materials selected from the group consisting of polyester, polypropylene, polyethylene, polyurethane, polytetrafluoroethylene and combinations thereof.
Claim 15
Dependent Claim
30 words
The method of claim 9, wherein said weaving further includes weaving patterns selected from a group consisting of a plain weave, a twill weave, a velour weave and combinations thereof.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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