发明名称 |
Self-centering blood clot filter |
摘要 |
Blood clot filters having self-centering capabilities when placed in a blood vessel are disclosed. A blood clot device in accordance with an exemplary embodiment of the present invention may include a number filter legs formed at least in part of a shape-memory material configured to transform from a centering configuration to a filtering when deployed in the body. An attachment section on the distal section of each filter leg is configured to pierce and secure the filter to the vessel wall at a first location. A bend region may be heat set into the shape-memory material to provide a second contact location along the vessel wall to aid in centering the filter within the vessel. The bend region can be formed by heating the shape-memory material above its final austenite temperature (Af), and then shaping the filter leg to form a pad that abuts the vessel wall during deployment.
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申请公布号 |
US2005027314(A1) |
申请公布日期 |
2005.02.03 |
申请号 |
US20030630307 |
申请日期 |
2003.07.30 |
申请人 |
SCIMED LIFE SYSTEMS, INC. |
发明人 |
WASDYKE JOEL M. |
分类号 |
A61F2/01;(IPC1-7):A61M29/00 |
主分类号 |
A61F2/01 |
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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