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Apparatus for providing enhanced tissue fragmentation and/or hemostasis

  • US 5,015,227 A
  • Filed: 04/03/1990
  • Issued: 05/14/1991
  • Est. Priority Date: 09/30/1987
  • Status: Expired due to Term
First Claim
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1. In a surgical apparatus for performing one or more surgical procedures at a surgical site on a patient comprising:

  • a handpiece;

    a tool supported by said hand-piece;

    said tool having a vibrating tool tip;

    vibrating means including a metal connecting member for ultrasonically vibrating said tool tip; and

    RF current means selectively operable for providing an RF current to said tool tip for allowing performance of an electrosurgical procedure at the surgical site;

    said RF current means including switching means for switching the RF current provided to said tool tip to at least an RF cutting current during ultrasonic vibration, the improvement wherein said switching means comprises a switch module for selecting said RF current, an electrically conducting metal band connected to said switch module and an electrically conductive O-ring around said connecting member and in electrical contact with said metal band.

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