Gebrueder Berchtold Gmbh & Co.

Helge Hofmann

Gernod Fritzsch

Wolfram Hill

A high frequency surgical instrument which has at least one treatment electrode (,&Prime;) which can be or is connected to a high frequency generator (,), which is at least partly fluid-permeable and to which a fluid, in particular a liquid, which counteracts the sticking of the biological tissue to the treatment electrode (,) can be or is fed in through at least one liquid infeed passage (,). At least the region (,&Prime;) of the treatment electrode which is intended for the interaction with the biological tissue consists totally or partly of a liquid-permeable, porous, biologically compatible sinter material.

High frequency surgical instrument with a fluid infeed passage

A trocar for laparoscopic operations on patients has a tube and high frequency connections in the region of the front end of the tube which can be connected to a high frequency generator. A cutting bar is axially displaceable in the tube and can be fixed in a cutting position. The high frequency connections and electrosurgical cutting device connected to the latter are arranged at the front end of the cutting bar.

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Emmingen, Germany

Helge Hofmann