| 摘要 |
PURPOSE:To provide a calculus crushing device that can indicate a focal point where ultrasonic wave actually focuses on after, at least, shock wave is sent and an actual medical care starts. CONSTITUTION:In the calculus crushing device that crushes a calculus with the impact obtained by focusing the medical care ultrasonic wave generated from a main ultrasonic wave source 1 on an focal point, and that generates an image near the focal point by transmitting and receiving ultrasonic wave with a probe 2 attached to the main ultrasonic wave source 1, a marker indicating a focal point is superimposed with the image according to the positioning relation between the main ultrasonic wave source 1 and the probe 2 before the medical care ultrasonic wave is generated. While, after the medical care ultrasonic wave is generated, only a moving object which moves at a certain speed by the impact is imaged using the doppler processing and the image is superimposed with the screen. |
