Abstract: An ultrasonic apparatus comprising a hand piece (1) within a handle region (2), a connection tube (3) for connecting to a supply tube, wherein rock salt solution and medical healing agents such as heparin, antibioticts and the like are fed through the feed channel (5) to the sonotrode (7) or ultrasonic treatment head. The ultrasound energy is fed to the hand piece (1) through the connection line to the ultrasonic generator (4) in a conventional way.

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.

Abstract: A method is furnished for a treatment of septic wounds. A hand piece of a sonotrode is connected to a liquid storage. Access to a wound is furnished to the sonotrode. A liquid atomized by ultrasound is delivered to the wound through a sonotrode channel disposed in the sonotrode. Bacteria in the area of the wound are destroyed by the ultrasound emitted by the sonotrode. The method allows to remove a prosthesis not longer desired from a patient. The area left open by the removed prosthesis and/or a bone is filled with a liquid. The sonotrode is then entered into the liquid for propagating ultrasound through the liquid and thereby destroying bacteria present in the liquid.