Solid accretion three=dimensional location and dissolution system - has ultrasonic emitter and receiver axes intersecting shock wave at accretion for medical application

摘要

The system is used for locating and dissolving solid accretions e.g. kidney stones. A coupling unit is placed on the surface of the patient's body. The unit is elliptical with a circular cross-section and the shock wave source is situated at the focal point of the ellipsoid. The wall of the unit houses ultrasonic emitters and receivers, whose axes intersect the axis of the shockwave source at the focal point of the accretion (18) at an angle of 30 degrees. The emitter and receiver (2, 12) are arranged symmetrically on the circular cross-section and a B-scan is provided for preliminary location of the accretion.