发明授权
- 专利标题： Therapeutic appliance releasing device
- 专利标题（中）： 治疗用具释放装置
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申请号： US894422申请日： 1997-08-19
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公开(公告)号： US5989242A公开(公告)日： 1999-11-23
- 发明人: Vahid Saadat , Samuel M. Shaolian , Jeffrey J. Giba , Hung H. Cao , Randall Blair
- 申请人： Vahid Saadat , Samuel M. Shaolian , Jeffrey J. Giba , Hung H. Cao , Randall Blair
- 申请人地址： CA Irvine
- 专利权人： Trimedyne, Inc.
- 当前专利权人： Trimedyne, Inc.
- 当前专利权人地址： CA Irvine
- 主分类号： A61B17/00
- IPC分类号： A61B17/00 ; A61B17/12
摘要：
This invention is a device (10) for releasing a therapeutic appliance, such as an embolic coil (12) inside an aneurysm (16). The device includes a coupling (24) of a shape memory alloy which is responsive to a change in temperature beyond a predetermined transformation point so as to change the shape of the coupling from a first configuration, wherein the coupling receives and holds the proximal end (72) of the coil, to a second configuration wherein the coil can be released from the coupling. An energy receiver (46) is operably associated with the coupling to heat the coupling to a temperature above the transformation point with laser or electrical energy received from an external source.