Apparatus for fragmentation of a solid body surrounded by a fluid
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United States of America Patent
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Jun 12, 1990
Grant Date -
N/A
app pub date -
Oct 8, 1987
filing date -
Nov 13, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for the fragmentation of a solid body surrounded by a fluid, in particular in a living being, by means of acoustic shock waves which are induced by the light of a laser. A reflector for acoustic waves focuses the shock waves onto the body. In the region of the reflector, an element is provided which consists of a material absorbing the laser light, and onto which the laser light is directed, so that the plasma state triggering the acoustic shock wave develops at the surface of the element. The apparatus thus has the advantage that even under unfavorable conditions acoustic shock waves can be generated with certainty at every laser pulse.
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