发明名称 |
EXPANDABLE STENT WITH WRINKLE-FREE ELASTOMERIC COVER |
摘要 |
An improved stent-graft device is provided that delivers a smooth flow surface over a range of operative expanded diameters by applying a unique cover material to the stent through a technique that allows the cover to become wrinkle-free prior to reaching fully deployed diameter. The unique cover material then allows the device to continue to expand to a fully deployed diameter while maintaining a smooth and coherent flow surface throughout this additional expansion. Employed with a self-expanding device, when the device is unconstrained from a compacted diameter it will self-expand up to a fully deployed diameter with the graft being substantially wrinkle-free over diameters ranging from about 30-50% to 100% of the fully deployed diameter. Preferably, the graft component comprises an elastomeric material, such as silicone, polyurethane, or a copolymer of PAVE-TFE. |
申请公布号 |
CA2649849(C) |
申请公布日期 |
2012.07.10 |
申请号 |
CA20072649849 |
申请日期 |
2007.04.13 |
申请人 |
GORE ENTERPRISE HOLDINGS, INC. |
发明人 |
CULLY, EDWARD H.;VONESH, MICHAEL J. |
分类号 |
A61F2/06;A61F2/90 |
主分类号 |
A61F2/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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