A COMBINED ULTRASONIC AND HF SURGICAL SYSTEM AS WELL AS A CONTROL DEVICE AND A METHOD THEREOF

摘要

The invention relates to a combined ultrasonic and HF surgical system, a control device for controlling such a combined ultrasonic and HF surgical system and a method for operating a combined ultrasonic and HF surgical system. The system comprises an ultrasonic generator having a generation unit for providing an excitation signal by which an ultrasonic converter can generate an ultrasonic vibration, a HF generator for providing a HF energy at two output contacts, and a control unit adapted to control the ultrasonic generator and/or the HF generator, such that the excitation signal and the HF energy are provided in a coordinated fashion, such that the HF energy is provided in dependency of the excitation signal, wherein a HF energy is modulated with the frequency of the excitation signal or with a harmonic of that frequency.