The method and device of the present invention for ultrasound wound treatment includes a transducer to produce ultrasonic waves. The ultrasonic transducer has tip with the distal end (radiation surface). A liquid is directed to the radiation surface throug central orifice or separate tube wherein an...http://www.google.se/patents/US6663554?utm_source=gb-gplus-sharePatent US6663554 - Ultrasonic method and device for wound treatment