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    • 9. 发明授权
    • Acoustic focussing device
    • 声音聚焦装置
    • US5240005A
    • 1993-08-31
    • US796341
    • 1991-11-22
    • Thomas Viebach
    • Thomas Viebach
    • A61B17/22A61B17/225G10K11/30
    • G10K11/30
    • The present invention relates to an acoustic focussing device for the focussing of ultrasonic and shock waves, particularly for the no-contact crushing of a concrement disposed in the body of a living being. Several boundary surfaces are arranged behind one another in the propagating direction of the sound waves, in which case adjacent gaps contain liquids of different sound velocities. At least one gap is connected with a non-adjacent gap. At least one of the boundary surfaces is deformable. At least one of the boundary surfaces can be moved in parallel to the propagating direction of the sound waves by means of which movement liquid is displaced between connected gaps and the radius of curvature of at least one of the deformable boundary surfaces is changed.
    • 本发明涉及一种用于聚焦超声波和冲击波的声聚焦装置,特别是用于设置在生命体中的混凝土的无接触破碎。 在声波的传播方向上,多个边界面相互排列,在这种情况下,相邻间隙含有不同声速的液体。 至少一个间隙与不相邻的间隙连接。 至少一个边界面是可变形的。 边界面中的至少一个可以平行于声波的传播方向移动,通过该声波的移动液体在连接的间隙之间移动并改变至少一个可变形边界表面的曲率半径。