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Bipolar electrosurgical tool with active and return electrodes shaped to foster diffuse current flow in the tissue adjacent the return electrode
Bipolar electrosurgical tool with active and return electrodes shaped to foster diffuse current flow in the tissue adjacent the return electrode
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机译:具有有源电极和返回电极的双极电外科工具,其形状可促进扩散电流在与返回电极相邻的组织中流动
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摘要
A bipolar electrosurgical tool (40) including a shaft to which active and return electrodes (54, 48) are mounted. The return electrode has an exposed surface (86) that, in at least one direction has a substantially linear profile. The active electrode extends through a bore that opens into this surface so as to extend forward of this surface. A collar (110) formed from electrically insulating material extends over the portion of the active electrode adjacent the return electrode. The collar extend both forward of the return electrode and radially outwardly of the active electrode.
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