Abstract: An ultrasonic medical treatment device takes the form of an elongate probe having an elongate wave-generating concave surface with a longitudinal axis and ultrasonic electromechanical transducer elements for vibrating said concave surface to generate ultrasonic pressure waves focused along a linear locus extending parallel to said longitudinal axis. The probe may include a monolithic piezoelectric crystal element and electrode pairs provided along the unitary or monolithic element in a spaced array.

Abstract: A medical treatment apparatus includes a high intensity focused ultrasound transducer disposable in juxtaposition to a patient, a servomechanism operatively connected to the transducer for moving the transducer along a path, a signal generator operatively connected to the transducer for energizing same to produce focused ultrasonic pressure waves in the patient continuously during motion of the transducer along the path, and a computer operatively connected to the servomechanism for determining the path and controlling the servomechanism to move the transducer along the path. The computer is operatively connected to the generator for controlling same to energize the transducer continuously during motion of the transducer along the path.