Patent ID: 7125387

Claim:
An ultrasonic apparatus for therapeutical use, comprising: a belt on which transducer-mounting openings of predetermined size are arranged at a predetermined cycle; a holder independently fixed to ones of the transducer-mounting openings on one surface of the belt and having substantially the similar opening to each opening of the belt; and a cable to supply an electric signal required for an ultrasonic piezoelectric transducer, wherein: one holder is provided with a cover held by the holder, and a unit ultrasonic radiator holding the ultrasonic piezoelectric transducer substantially parallel to the face of the opening is formed in the cover, and the ultrasonic piezoelectric transducer is separated into a first and second ultrasonic piezoelectric transducers wherein wave fronts of ultrasonic waves generated by the first and second ultrasonic piezoelectric transducers are inclined in directions in which the wave fronts are overlapped and the first ultrasonic piezoelectric transducer is excited by a first frequency and the second ultrasonic piezoelectric transducer is excited by a second frequency which is substantially double a frequency of the first frequency.