Apparatus for the non-contact disintegration of conrements present in a body

Abstract

An apparatus for the non-contact disintegration of concrements present in a body by means of sound shock waves generated by spark discharge between two electrodes (3, 4) in a focus (F 1 ) of at least one liquid-filled rotationally symmetrical reflector (2) formed in a reflector block, said sound shock waves being focussed in a focal point (F 2 ) situated outside the reflector (2). Between the focus (F 1 ) and the focal point (F 2 ), in a region (3) bounded by an imaginary conical surface defined by the edge R of the reflector (2) and the focus (F,), there is positioned an object (20) intercepting sound shock waves impinging thereon.