Electrosurgical apparatus and methods for ablating

专利名称：Electrosurgical apparatus and methods for

ablating tissue

发明人：Terry S. Davison申请号：US10713643申请日：20031113

公开号：US20040153057A1公开日：20040805

专利附图：

摘要：Electrosurgical methods and apparatus for the controlled ablation of tissuefrom a target site of a patient. The instrument includes a shaft having proximal and distalend portion and an active screen electrode on the distal end portion; a return electrode

arranged on the shaft spaced from the screen electrode; at least one electricalconnector extending through the shaft that connects the active electrode with a highfrequency power supply; at least one electrical coupling member (such as a ball wire)adapted to secure the active screen electrode to the shaft and to electrically couple thescreen electrode to the at least one electrical connector; and an aspiration lumen withinthe shaft having a distal opening coupled to the single active electrode wherein thescreen electrode inhibits clogging of the aspiration lumen.

申请人：ARTHROCARE CORPORATION

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