Use of at least one composite piezoelectric transducer in the manufacture of an ultrasonic therapy apparatus for applying therapy, in a body zone, in particular to concretions, to tissue, or to bones, of a living being and method of ultrasonic therapy

摘要

The invention relates to a composite piezoelectric transducer for making an acoustic or an ultrasonic therapeutic apparatus. The transducer may be a single large-size transducer or it may be a multi- transducer device and it advantageously emits ultrasonic waves that are focused on a focal point.