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Bipolar electrocautery surgical snare

  • US 4,493,320 A
  • Filed: 04/02/1982
  • Issued: 01/15/1985
  • Est. Priority Date: 04/02/1982
  • Status: Expired due to Fees
First Claim
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1. A bipolar electrocautery surgical snare for endoscopic removal of growths within a body cavity, said snare comprising:

  • a unitary elongated electrically insulating flexible double-lumen tubular member having a proximal end and a distal end;

    a pair of elongated flexible electrically conductive uninsulated snare wires, each snare wire disposed within one of the respective lumina within said tubular member in slidable relation therewith, said snare wires being of a length greater than said tubular member such that each snare wire extends from both the proximal and distal ends of said tubular member;

    an electrically insulating connector means disposed at the distal end of each of said snare wires;

    said connector means mechanically uniting but electrically insulating said distal ends of said snare wires to form a surgical snare loop extending from the distal end of said tubular member; and

    means for electrically connecting the proximal ends of said snare wires to a bipolar electrocautery current source; and

    actuator means for sliding the snare wires inwardly or outwardly through the tubular member to respectively expand or contract the surgical loop.

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