An automatically positioned focussed energy transducer system facilitates medical procedures by allowing a physician to interactively view the position the focal point of a focussed energy transducer superimposed upon a medical image and computer generated model of internal structures of a patient. A...http://www.google.com.au/patents/US5526814?utm_source=gb-gplus-sharePatent US5526814 - Automatically positioned focussed energy system guided by medical imaging
