Therapy apparatus for locating and treating a zone in the body of a life form with acoustic waves

A therapy apparatus as claimed in claim I wherein said means for emitting diagnostic acoustic waves comprises means for emitting diagnostic ultrasound.

A therapy apparatus as claimed in claim I wherein said filter means comprises a low-pass filter.

A method for locating and treating a zone in the body of a living subject with acoustic waves comprising the steps of:

• generating therapeutic acoustic waves at a first frequency and focusing said therapeutic acoustic waves onto a zone of action;
• and
• generating an image of a zone to be treated in said subject simultaneously with the generation of therapeutic acoustic waves, for assisting in bringing said zone of action into coincidence with said zone to be treated, by emitting diagnostic acoustic waves at a second frequency and receiving parts of said diagnostic acoustic waves reflected in the body of said subject and converting said parts into electrical signals, and generating said image from said electrical signals, and filter, and suppressing a fundamental of the focused therapeutic acoustic waves during the generation of said image.