IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0823061
(2004-04-12)
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등록번호 |
US-7465316
(2008-12-16)
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발명자
/ 주소 |
|
출원인 / 주소 |
- Boston Scientific Scimed, Inc.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
6 인용 특허 :
48 |
초록
▼
An implantable, flat-woven multi-petaled graft includes (i) a hollow tubular woven portion having opposed first and second tubular ends, the woven portion having a number of warp yarns interlaced with a number of fill yarns in a flat-woven tubular woven pattern to define a flat-woven tubular diamete
An implantable, flat-woven multi-petaled graft includes (i) a hollow tubular woven portion having opposed first and second tubular ends, the woven portion having a number of warp yarns interlaced with a number of fill yarns in a flat-woven tubular woven pattern to define a flat-woven tubular diameter, and (ii) a bulbous woven portion having opposed first and second ends, the first bulbous end having a greater number of warp yarns interlaced with the fill yarns in a flat-woven tubular bulbous pattern contiguously woven from the second tubular end to provide a seamless woven, wherein the greater number of warp yarns are threadingly engaged with the fill yarns to define a flat-woven bulbous diameter; wherein the second end of the bulbous portion is scalloped with a plurality of petal-like projections seamlessly woven from the first bulbous end. The graft may include three petal-like projections. The bulbous woven section may be truncated, i.e., hemispherically or hemibulbously shaped.
대표청구항
▼
What is claimed is: 1. An implantable, flat-woven multi-petaled graft comprising: a hollow tubular woven portion having opposed first and second tubular ends, said woven portion having a number of warp yarns interlaced with a number of fill yarns in a flat-woven tubular woven pattern to define a se
What is claimed is: 1. An implantable, flat-woven multi-petaled graft comprising: a hollow tubular woven portion having opposed first and second tubular ends, said woven portion having a number of warp yarns interlaced with a number of fill yarns in a flat-woven tubular woven pattern to define a seamless tubular woven portion having a flat-woven tubular diameter, and a bulbous woven portion having opposed first and second ends, the first bulbous end having a greater number of warp yarns interlaced with said fill yarns in a flat-woven tubular bulbous pattern contiguously woven from said second tubular end to provide a seamless bulbous woven portion, wherein the greater number of warp yarns are threadingly engaged with said fill yarns to define a flat-woven bulbous diameter; wherein said second end of said bulbous portion is scalloped with a plurality of petal-like projections seamlessly woven from said first bulbous end; wherein the petal-like projections are non-tubular, contoured, lobate-shaped woven sheets having non-connected distal portions. 2. The graft of claim 1, wherein there are three petal-like projections. 3. The graft of claim 1, wherein said tubular portion is circumferentially crimped. 4. The graft of claim 1, wherein said petal-like projections are circumferentially crimped. 5. The graft of claim 1, wherein said petal-like projections are contoured by threadingly disengaging said additional number of warp yams from said fill yarns. 6. The graft of claim 1, wherein said second end of said bulbous portion is contoured by threadingly disengaging said additional number of warp yarns from said fill yarns. 7. The graft of claim 1, further including a mechanical or tissue heart valve, wherein said woven petal-like projections are securably attached to said valve. 8. The graft of claim 1 wherein said petal-like projections are contoured to mimic the shape of the sinuses of Valsalva. 9. The implantable graft of claim 1, wherein said tubular woven pattern and said bulbous woven pattern are selected from the group consisting a plain weave, a basket weave, a twill weave, a velour weave, a double velour weave, a satin weave, a terry weave, and combinations thereof. 10. The implantable graft of claim 1, wherein said warp yarns and said fill yarns include materials selected from the consisting of polyester, polypropylene, polyethylene, polyurethane, polytetrafluoroethylene and combinations thereof. 11. The implantable graft of claim 1, wherein said warp yarns are single ply, 70 denier, 54 filament, twisted fiat polyester; double ply, 40 denier, 27 filament, twisted set polyester; or combinations thereof. 12. The implantable graft of claim 1, wherein said fill yarns are single ply 70 denier, 54 filament, twisted flat polyester; double ply, 40 denier, 27 filament, twisted set po1yester; or combinations thereof. 13. The implantable graft of claim 1, wherein said bulbous woven section is hemispherically shaped. 14. The graft of claim 1, wherein said petal-like projections are contoured by threadingly engaging said additional number of warp yarns with said fill yarns. 15. The graft of claim 1, wherein said petal-like projections have edges that are ravel-resistant. 16. The graft of claim 15, wherein said edges are woven selvages. 17. The graft of claim 15, wherein said ravel resistant edges are formed by fusingly sealing said edges. 18. The graft of claim 17, wherein said edges include heat-fusible yarns. 19. The graft of claim 17, wherein said edges include an increased yarn density as compared to non-edge portions of said projections. 20. The graft of claim 15, where said edges are cut from said bulbous second end. 21. The graft of claim 20, wherein said edges are ultrasonically cut from said bulbous second end. 22. The graft of claim 21, where in said edges are ultrasonically sealed by fusing yarns disposed at said edges.
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