A FOCUSING ULTRASONIC SOURCE

摘要

The invention provides a focusing ultrasonic source, which includes an emitter for emitting ultrasonic and a focusing means for focusing the emitted ultrasonic. Said emitted ultrasonic is transmitted to the focus in the form of approximate spherical wave after it has been focused by the focusing means, meanwhile, he angle between the two ports of the external diameter and the focus in the range of 50° to 120°. After tested, the focusing capability of the ultrasonic source according to present invention is clearly superior to the known small aperture angular source, it can make the focusing ultrasonic at the focus get high enough sound intensity and temperature so as to kill the living histiocyte, it can also avoid or reduce the damage to the human during the conduction path. It eases the patient pain and brings a satisfying effect.