Bipolar electrocautery surgical snare
First Claim
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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Accused Products
Abstract
A bipolar electrocautery surgical snare is described capable of performing the endoscopic removal of growths within a body cavity with improved precision and accuracy. The bipolar surgical snare comprises an electrically insulating elongated double lumen tubular member, a pair of flexible electrically conductive snare wires extending through the respective lumina of the tubular member and from each end thereof, an electrically insulating connector means for mechanically uniting but electrically insulating one end of each of the snare wires to form a surgical loop extending from one end of the tubular member; and attachment for electrically connecting the opposed ends of said snare wires to a high frequency electrocautery current source.
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Citations
7 Claims
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1. A bipolar electrocautery surgical snare for endoscopic removal of growths within a body cavity, said snare comprising:
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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; andmeans 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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification