TARGETING LOCATIONS IN THE BODY BY GENERATING ECHOGENIC DISTURBANCES

摘要

Surgical apparatus includes a transducer (50) configured to be inserted into a cavity (28) inside a bone (22) within a body of a living subject and to engage an inner wall of the cavity at a selected location within the cavity. A drive circuit (38) is coupled to apply a drive signal to the transducer so as to cause an echogenic movement of the bone at the selected location.