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    • 10. 发明公开
    • Lithotrity apparatus
    • VorrichtungfürLithotripsie。
    • EP0460536A1
    • 1991-12-11
    • EP91108871.4
    • 1991-05-29
    • KABUSHIKI KAISHA TOSHIBA
    • Aida, Satoshi, c/o Intellectual Property DivisionIwama, Nobuyuki, c/o Intellectual Property Div.
    • A61B17/22H01L41/04
    • A61B17/2258
    • An electromagnetic induction type lithotrity apparatus, having a shock-wave source (10) utilizing electromagnetic induction to generate a shock-wave, and focusing means (20) to focus the shock-wave at a predetermined position (F2), for focusing and irradiating the shock-wave toward a stone (28) in the body of a patient (26) which is located at the predetermined position (F2), thereby pulverizing the stone, comprising, drive section (sending section) (1) for driving the shock-wave source by a voltage lower than that for generating the shock-wave so as to send a low-pressure wave lower in pressure than the shock-wave to the inside of the body, echo receiving section (2), including a piezoelectric film (15) arranged in front of the shock-wave source, for receiving a low-pressure echo reflected from the body, echo detecting section (3) for detecting the intensity of an echo, among the echoes received by the echo receiving section (2), reflected by a focal zone of the shock-wave, and control section (4) for comparing the intensity of the echo detected by the echo detecting section (3) with a predetermined value, sending a predetermined signal to the drive section (sending section) based on the comparison result, switching the drive voltage of the shock-wave source (10) to a high voltage sufficient for lithotrity, and generating a signal for driving the shock-wave source (10).
    • 一种具有利用电磁感应产生冲击波的冲击波源(10)和用于聚焦和照射的聚焦装置(20),用于将冲击波聚焦在预定位置(F2)处的电磁感应式放射性装置 所述冲击波朝向位于所述预定位置(F2)的患者(26)的身体中的石头(28),从而粉碎所述石头,包括用于驱动所述冲击的驱动部(发送部)(1) 波源的电压低于用于产生冲击波的电压,以便将比压力低的冲击波的低压波发送到身体内部,回波接收部分(2)包括压电膜 (15)布置在冲击波源的前面,用于接收从身体反射的低压回波,用于检测回波强度的回波检测部分(3),由回波接收部分(2)接收的回波 ),反映在冲击波的焦点区域,并进行控制 l部分(4),用于将由回波检测部分(3)检测到的回波的强度与预定值进行比较,基于比较结果向驱动部分(发送部分)发送预定信号,切换 冲击波源(10)到达足够高的高压,并产生用于驱动冲击波源(10)的信号。