An ultrasonic oscillation device adapted for use in surgical operations includes, for the purpose of producing ultrasonic vibrations of an amplitude and power capable of exhibiting a satisfactory tissue shattering capacity in a wide field of living tissues, an ultrasonic oscillation section having a...http://www.google.es/patents/US4587958?utm_source=gb-gplus-sharePatente US4587958 - Ultrasonic surgical device
