| 摘要 |
PURPOSE:To crush a calculus by clearly catching the image thereof, by simple constitution such that a pouch filled with an ultrasonic wave propagating body is interposed between a shock wave generator and the surface of a human body and arranging an ultrasonic probe to the pouch on the surface side thereof. CONSTITUTION:After the surface of a pouch 5 is closely brought into contact with the surface of the body opposed to the affected part, the affected part is scanned by the ultrasonic probe 7 arranged to the pouch 5 on the surface side thereof to detect the position of a calculus. Subsequently, shock wave generator 1 is operated so that the other focus Fb of a parabolic surface body 2 reaches the position of the calculus and high voltage discharge is subsequently performed by a discharge electrode 3. Since the shock wave generated from said generator 1 is converged to the calculus present at the other focus Fb of the parabolic surface body 2, the calculus is crushed effectively.
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