Apparatus for the non-contact disintegration of concrements pres

Details Apparatus for the non-contact disintegration of concrements pres Apparatus for the non-contact disintegration of concrements pres

1985-02-12

1987-10-27

Smith, Leonard E.

Surgery

Truss

Pad

A61B 1722

Patent

active

047022493

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 in a focus of at least one liquid-filled rotationally symmetrical reflector formed in a reflector block, said sound shock waves being focussed in a focal point situated outside the reflector. Between the focus F.sub.1 and the focal point F.sub.2, in a region .beta. bounded by an imaginary conical surface defined by the edge R of the reflector 2 and the focus F.sub.1, there is positioned an object intercepting sound shock waves impinging thereon.

REFERENCES:
patent: 3942531 (1976-03-01), Hoff et al.
patent: 4311147 (1982-01-01), Hausler
patent: 4570634 (1986-02-01), Wess

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