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Apparatus for comminuting concretions in bodies of living beings

  • US 4,530,358 A
  • Filed: 03/03/1983
  • Issued: 07/23/1985
  • Est. Priority Date: 03/25/1982
  • Status: Expired due to Fees
First Claim
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1. In an apparatus for comminuting concretions in the body of a living being and including a focusing chamber forming part of an ellipsoid of revolution having two foci accordingly, further including spark discharge means situated in one of the foci, and the improvement of suppressing the dispersion effect of any gas bubbles comprising:

  • a tub for positioning the body so that the concrement becomes situated in a second one of the foci, the focusing chamber being directly mounted to the tub, the tub and the chamber being filled with liquid;

    a common liquid circulation means for flushing liquid through the focusing chamber and the tub and having an inlet for liquid connected to the focusing chamber in the vicinity of the spark discharge means and having an outlet from the tub above the focusing chamber; and

    inclined foil means in the tub under the space provided for the body and mounted above the focusing chamber, said liquid as circulated flowing along one or both of a coupling in location at the body and the lower side of said foil means towards said outlet.

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