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Electrosurgical cutting and coagulating instrument for open surgery

  • US 6,110,171 A
  • Filed: 03/09/1999
  • Issued: 08/29/2000
  • Est. Priority Date: 03/09/1999
  • Status: Expired due to Fees
First Claim
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1. A bipolar electrosurgical instrument comprising:

  • (a) first and second conductive rods having proximal and distal ends, each with a conductive forceps jaw at said distal ends, said second conductive rod being tubular with a lumen extending longitudinally therethrough;

    (b) an elongated wire having an insulating covering over substantially its entire length, except at a distal end portion thereof, said wire being disposed in said lumen and reciprocally movable therein between an extended and a retracted position; and

    (c) means for alternately applying a voltage between the distal end portion of the wire and the forceps jaw on the first conductive rod when the distal end portion of the elongated wire is in the extended position and between the conductive forceps jaws on the first and second conductive rods when the distal end portion of the elongated wire is in the retracted position.

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