Calculus disintegrating apparatus

Details Calculus disintegrating apparatus Calculus disintegrating apparatus

1986-08-22

1987-09-08

Thaler, Michael H.

Surgery

Truss

Pad

A61B 1722, A61B 1736

Patent

active

046917063

ABSTRACT:
A calculus disintegrating apparatus includes first and second electrodes which are arranged at the distal end of a probe inserted into a coeliac cavity, and discharge energy sources connected to the first and second electrodes to impress D.C. impulse voltage across them. The apparatus is arranged to disintegrate a calculus by impact waves resulting from spark discharges produced across the first and second electrodes. A polarity changing circuit is provided between the discharge energy sources and first and second electrodes to vary the polarity of the output D.C. impulse voltage from the discharge energy sources.

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