发明名称 |
Medical probe |
摘要 |
A medical probe device of this invention comprising a catheter having a control end and a probe end. The probe end includes a stylet guide housing having at least one stylet port and stylet guide means for directing a flexible stylet outward through at least one stylet port and through intervening tissue to targeted tissues. A stylet is positioned in at least one of said stylet guide means, the stylet comprising a non-conductive sleeve having a RF electrode lumen and an optional a fluid supply lumen and a temperature sensor lumen therein. At least one portion of an opposed surface of the electrode lumen and the electrode can be spaced apart to define a liquid supply passageway for delivery of medicament liquid. The RF electrode enclosed within the non-conductive sleeve has a distal length optionally having at least one current focusing groove means thereon and a distal tip shaped to focus current crowding on its terminal end, whereby Rf current passing therefrom into surrounding tissue forms a lesion extending outward from the groove and tip. The focusing groove means can be a plurality of annular focusing grooves or a spiral focusing groove thereon. <IMAGE> |
申请公布号 |
EP0628288(B1) |
申请公布日期 |
2000.04.05 |
申请号 |
EP19940303423 |
申请日期 |
1994.05.12 |
申请人 |
VIDAMED, INC. |
发明人 |
EDWARDS, STUART D.;LUNDQUIST, INGEMAR H.;BAKER, JAMES ALLEN, JR.;SHARKEY, HUGH, R.;LAX, RONALD G. |
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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