| 摘要 |
In a dissecting instrument for surgical operations a working instrument such as a blade with cutting edge is fastened to a holding device such as a handle. Coagulation devices are provided, with a gas-supply apparatus to supply an ionizable (noble) gas and current-conducting means to supply an HF coagulation current. It is proposed to mount electrode devices that form part of the current-conducting means in such a way that they are separate from the working instrument but nevertheless close to it, and to make the working instrument electrically insulating so that the coagulation current can be guided to the tissue without being conducted through the working instrument even while the latter is in contact with the tissue.
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