Multi-port side-fire coagulator
First Claim
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1. An electrosurgical apparatus for coagulating tissue, comprising:
- an elongated flexible tube having a proximal end and a distal end, said proximal end of said tube sufficiently dimensioned to extend through a working channel of an endoscope;
said tube comprising a plurality of radially disposed side-ports which are located therethrough between said proximal and distal ends;
a diffusing member for directing ionizable gas from said proximal end of said tube through each of said side-ports and towards said tissue, said diffusing member comprising;
a first plenum disposed within said tube between said proximate end and said distal end, said first plenum having a plurality of apertures located therethrough; and
a corresponding plurality of ducts coupled to each of said apertures which each direct an amount of said ionizable gas to one of said side-ports;
a corresponding plurality of electrodes each disposed within one of said ducts for ionizing said gas prior to said gas exiting said side-ports; and
a regulator for regulating the flow of said gas through said first plenum into each of said apertures.
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Abstract
An electrosurgical apparatus for coagulating tissue used in combination with an endoscope which includes an elongated flexible tube having a plurality of side-ports located therethrough. The tube extends through a working channel of the endoscope and an ionizable gas is supplied to the tube at or near the proximal end of the tube. A diffusing member directs the ionizable gas from the proximal end of the tube through each of the side-ports towards the tissue. An electrode is used for ionizing the gas prior to the gas exiting the side-ports.
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4 Claims
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1. An electrosurgical apparatus for coagulating tissue, comprising:
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an elongated flexible tube having a proximal end and a distal end, said proximal end of said tube sufficiently dimensioned to extend through a working channel of an endoscope; said tube comprising a plurality of radially disposed side-ports which are located therethrough between said proximal and distal ends; a diffusing member for directing ionizable gas from said proximal end of said tube through each of said side-ports and towards said tissue, said diffusing member comprising; a first plenum disposed within said tube between said proximate end and said distal end, said first plenum having a plurality of apertures located therethrough; and a corresponding plurality of ducts coupled to each of said apertures which each direct an amount of said ionizable gas to one of said side-ports; a corresponding plurality of electrodes each disposed within one of said ducts for ionizing said gas prior to said gas exiting said side-ports; and a regulator for regulating the flow of said gas through said first plenum into each of said apertures. - View Dependent Claims (2, 3, 4)
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Specification