发明名称 |
Coaxial needle and severing snare |
摘要 |
A device for treating a lesion comprises a sheath extending from a proximal end which, in an operative position, is located outside the body, to a distal end which, in the operative position is located within the body. A needle extending through the sheath has a tissue piercing distal tip and a central lumen extending through the needle from a proximal port to a distal opening formed in the distal tip and a needle actuator is provided for moving the needle between a retracted position in which the distal tip is received within the sheath to an injection position in which the distal tip extends distally beyond a distal end of the sheath. A snare extends within the lumen to a loop formed in a distal end of the snare and a snare actuator is provided for moving the snare between a covered position in which the loop is received within the lumen and an extended position in which the loop extends distally from the lumen beyond the distal tip.
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申请公布号 |
US5961526(A) |
申请公布日期 |
1999.10.05 |
申请号 |
US19980025499 |
申请日期 |
1998.02.18 |
申请人 |
BOSTON SCIENTIFIC CORPORATION |
发明人 |
CHU, MICHAEL S. H.;CHIN, YEM |
分类号 |
A61B17/221;A61B17/00;A61B17/30;A61B17/32;A61B17/34;A61B18/14;(IPC1-7):A61B17/24 |
主分类号 |
A61B17/221 |
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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