| 摘要 |
The invention relates to an electrosurgical instrument that comprises two branches joined to one another in an articulated manner, which can be actuated to open or close in a manner corresponding to a clamping, spreading or cutting tool. The instrument further comprises electrode parts at distal ends of the branches, which are used for grasping tissue and passing a coagulation current through the tissue for the purpose of coagulating it and which are electrically insulated from one another, as well as current-supply devices to supply the coagulation current to the electrode parts. In addition, on at least at one electrode part, a cutting section designed as a cutting electrode is provided whereby the electrode part comprises the cutting section and a coagulation section. In addition a control unit is provided to control the HF current in such a way that when a threshold value characterizing a particular property of the grasped tissue has been reached, a cutting current different from the coagulation current is supplied to at least the cutting section.
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