发明名称 |
Gestützte, radial expandierbare, rohrförmige PTFE-Transplantate |
摘要 |
Stented tubular grafts of expanded, sintered polytetrafluoroethylene (PTFE). The stented PTFE grafts of the present invention include an integrally stented embodiment, an externally stented embodiment, and an internally stented embodiment. In each embodiment, the stent may be either self-expanding or pressure-expandable. Also, in each embodiment, the stent may be coated or covered with a plastic material capable of being affixed (e.g., heat fused) to PTFE. Manufacturing methods are also disclosed by the individual components of the stented grafts are preassembled on a mandrel and are subsequently heated to facilitate attachment of the PTFE layer(s) to one another and/or to the stent Optionally, the stented graft may be post-flexed and post-expanded following it's removal from the mandrel to ensure that the stented graft will be freely radially expandable and/or radially contractible over it's full intended range of diameters. |
申请公布号 |
DE69736987(T2) |
申请公布日期 |
2007.03.08 |
申请号 |
DE1997636987T |
申请日期 |
1997.06.26 |
申请人 |
EDWARDS LIFESCIENCES CORP. |
发明人 |
SHANNON, T.;KUO, CHRIS;MCINTYRE, JOHN;CLINKENBEARD, L.;CHU, YIZI;TU, BENNY |
分类号 |
A61F2/06;A61F2/84;A61F2/00;A61F2/90;A61L31/10;B29C53/58 |
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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