发明名称 |
MEDICAL PROBE WITH STYLETS |
摘要 |
A medical probe device of this invention comprising a catheter (2) having a control end and a probe end. The probe end includes a stylet guide housing (6) having at least one stylet port and stylet guide means for directing a flexible stylet (8) outward through at least one stylet port and through intervening tissue to targeted tissues. A stylet (8) is positioned in at least one of said stylet guide means, the stylet comprising a nonconductive sleeve (30) having an RF electrode lumen (50) and an optional fluid supply lumen (60) and a temperature sensor lumen (58) therein. At least one portion of an opposed surface of the electrode lumen and the electrode (32) can be spaced apart to define a liquid supply passageway for delivery of medication liquid. The RF electrode enclosed within the nonconductive sleeve has a distal length optionally having at least one current focusing groove (70) means thereon and a distal tip shaped to focus current crowding on its terminal end. |
申请公布号 |
CA2162724(A1) |
申请公布日期 |
1994.11.24 |
申请号 |
CA19942162724 |
申请日期 |
1994.05.03 |
申请人 |
VIDAMED, INC. |
发明人 |
EDWARDS, STUART D.;SHARKEY, HUGH R.;LUNDQUIST, INGEMAR H.;LAX, RONALD G.;BAKER, JAMES ALLEN JR. |
分类号 |
A61B18/12;A61B1/00;A61B5/01;A61B10/00;A61B10/02;A61B10/06;A61B17/00;A61B17/22;A61B17/24;A61B17/28;A61B17/34;A61B18/00;A61B18/08;A61B18/14;A61B18/18;A61B18/22;A61B18/24;A61B19/00;A61F7/00;A61K31/465;A61M1/00;A61M3/02;A61M25/00;A61M25/14;A61N1/06;A61N1/40;A61N5/02;A61N5/04;A61N5/06 |
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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