发明名称 |
Durch Wechselstrom aktivierte abtrennbare endovaskuläre Okklusionsvorrichtung |
摘要 |
An apparatus is provided for electrocoagulating blood and tissue at an occlusion site by means of application of an alternating signal or current through a detachable coil (14) on the end of a microcatheter. A Guglielmi Detachable Coil (GDC) is preferably used in the combination with radio frequency energy to cause local heating at the coil. Once carbonization of blood at the detachment zone of the GDC coil occurs, the impedance of the entire system increases. The impedance increase is detected to automatically turn off the alternating current and then to apply a direct current to electrolytically detach the GDC coil from the microcatheter. <IMAGE> |
申请公布号 |
DE69520186(T2) |
申请公布日期 |
2001.06.21 |
申请号 |
DE1995620186T |
申请日期 |
1995.10.16 |
申请人 |
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, OAKLAND |
发明人 |
GUGLIELMI, GUIDO;JI, CHENG |
分类号 |
A61B18/12;A61B17/00;A61B17/12;A61B18/08;A61B18/14;A61B19/00 |
主分类号 |
A61B18/12 |
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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