An ultrasonic medical probe has an elongate shaft with a head portion having a distal end face oriented at least partially transversely to a longitudinal axis of the shaft. The head portion has a lateral surface extending substantially parallel to the longitudinal axis, the lateral surface being provided...http://www.google.se/patents/US20080058775?utm_source=gb-gplus-sharePatent US20080058775 - Ultrasonic debrider probe and method of use
