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    • 19. 发明授权
    • Apparatus for disintegrating a calculus by an underwater shock wave from
outside the human body
    • 用于通过水下冲击波从人体外分解微积分的装置
    • US4893614A
    • 1990-01-16
    • US188671
    • 1988-04-29
    • Kazuyoshi TakayamaMasaaki KuwaharaShuzo Kimura
    • Kazuyoshi TakayamaMasaaki KuwaharaShuzo Kimura
    • A61B17/22A61B17/225G10K11/00G10K15/04
    • A61B17/2251G10K11/004G10K15/043A61B2017/2253
    • An apparatus for disintegrating a calculus in the human body by an underwater shock wave produced outside the human body. The apparatus includes a shock wave generation chamber having an inner surface in the shape of a part of a pseudo-ellipsoid of revolution having an opening therein. Also provided is a shock wave generation source positioned at the first focus of the pseudo-ellipsoid of revolution. In addition, a flexible container housing a liquid is attached to the shock wave generation chamber so that the liquid from the flexible container fills up the shock wave generation chamber. The flexible container containing the liquid is brought into contact with the human body, and the shock wave generation chamber is displaced so as to deform the flexible container, until the calculus in the human body is positioned at the second focus of the pseudo-ellipsoid of revolution. As a result of this positioning of the calculus of the human body at the second focus of the pseudo-ellipsoid of revolution, when a shock wave is generated at the first focus, a sufficiently high pressure can be generated at the second focus so as to disintegrate the calculus.
    • 通过在人体外部产生的水下冲击波分解人体中的结石的装置。 该装置包括冲击波产生室,其具有其中具有开口的一部分虚拟椭圆形的内表面。 还提供了一种位于旋转虚拟椭圆体的第一焦点的冲击波发生源。 此外,容纳液体的柔性容器附接到冲击波发生室,使得来自柔性容器的液体填满冲击波发生室。 容纳液体的柔性容器与人体接触,并且冲击波发生室被移动以使柔性容器变形,直到人体内的结石位于假体椭圆体的第二焦点 革命。 由于将人体的微积分定位在旋转伪椭球体的第二焦点处,当在第一焦点产生冲击波时,可以在第二焦点处产生足够高的压力,从而 分解微积分。