ELECTROSURGICAL GENERATOR FOR THE TREATMENT OF A BIOLOGICAL TISSUE, METHOD FOR REGULATING AN OUTPUT VOLTAGE OF AN ELECTROSURGICAL GENERATOR, AND CORRESPONDING USE OF THE ELECTROSURGICAL GENERATOR

摘要

An electrosurgical generator for the treatment of biological tissue. The electrosurgical generator comprises a generator part which supplies a high-frequency (“HF”) treatment current with an HF voltage set according to a voltage control signal. A measuring device detects the HF treatment current and the HF voltage and generates corresponding current and voltage signals. The current signal and the voltage signal are fed to a conversion device which forms a real current signal corresponding to the real component of the HF treatment current. A regulation device compares the real current signal with a pre-settable target value and generates the voltage control signal on the basis of the comparison. The real component of the treatment current is determined and the generator part is adjusted so that said real component approximates to a pre-determined target value.