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High frequency cauterizing apparatus

  • US 5,540,683 A
  • Filed: 07/12/1994
  • Issued: 07/30/1996
  • Est. Priority Date: 11/08/1993
  • Status: Expired due to Term
First Claim
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1. A high-frequency cauterizing apparatus comprising:

  • a high-frequency power supply device, having a plurality of high-frequency output modes, for generating a high-frequency current;

    at least one medical treatment instrument to be connected to said high-frequency power supply device;

    said at least one medical treatment instrument to be connected to said high-frequency power supply device comprising an endoscope and a high-frequency medical treatment instrument carried by said endoscope, said high-frequency medical treatment instrument having two electrodes, said two electrodes of said high-frequency medical treatment instrument including;

    a living body-side electrode for performing a cauterizing treatment for a living body tissue by a high-frequency current produced by said high-frequency power supply device, said living body-side electrode being arranged to be put in contacts with the living body, anda medical instrument-side electrode arranged to be put in contact with an affected part of a living body;

    detection means for detecting connection of said medical treatment instrument to said high-frequency power supply device;

    control signal generating means for identifying the type of the medical treatment instrument responsive to a detection signal from said detection means, and for generating a control signal; and

    control means for controlling a high-frequency output from said high-frequency power supply device on the basis of said control signal generated from said control signal generating means;

    said endoscope including a leak current feedback cord electrically connected to a body portion of said endoscope; and

    said high-frequency power supply device including means for equalizing a potential of the living body-side electrode of said high-frequency medical treatment instrument to that of the body portion of said endoscope via said leak current feedback cord.

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