Abstract: An instrument for electrochemical treatment of the human body or of an animal body is disclosed. The instrument is useful for the destruction of tumor tissues. One or several electrodes are furnished for insertion into the body to be treated. A direct current generator (1) generates a DC voltage. Connection lines (2,3,3?) for the generated direct current power are connectable to the generator. A switching box (9) inserted into the connection lines for a selection of electrode polarity. At least one trocar sleeve (7,7?) is connected with a first end to the connection lines., At least one trocar thorn (12) is insertable into the trocar sleeve. At least one electrode (5,5?) is insertable into the trocar sleeve such that an end of the electrode (5,5?) protrudes from a second end of the trocar sleeve. Tumors having sizes up to about 50 centimeters diameter can be treated with the instrument.

Abstract: The present invention furnishes a plasma generator for generating a cold plasma jet beam in the application field of medicine and in particular of surgery as well as other fields of science. The plasma generator is furnished with a separate, frequency tunable oscillator, wherein the frequency tunable oscillator controls the power end stage through a driver stage. The radio frequency of the outpout of the generator is determined by a resonance frequency of a resonance transformer. The plasma current is limited by a capacitor disposed in the hand piece.