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, the tube comprising a plurality of side-ports which are disposed therethrough between the proximal and distal ends;
a diffusing member for directing ionizable gas from the proximal end of the tube through each of said side-ports and towards the tissue, the diffusing member including a first plenum disposed within the tube between the proximal and distal ends having a plurality of apertures defined therethrough, at least one of the apertures including a corresponding baffle disposed therein operably configured to cause the ionizable gas to exit the corresponding side-port with predetermined flow characteristics; and
a corresponding plurality of electrodes disposed proximate each side port operable to ionize the ionizable gas prior to the ionizable gas exiting the side-ports.
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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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Citations
10 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, the tube comprising a plurality of side-ports which are disposed therethrough between the proximal and distal ends; a diffusing member for directing ionizable gas from the proximal end of the tube through each of said side-ports and towards the tissue, the diffusing member including a first plenum disposed within the tube between the proximal and distal ends having a plurality of apertures defined therethrough, at least one of the apertures including a corresponding baffle disposed therein operably configured to cause the ionizable gas to exit the corresponding side-port with predetermined flow characteristics; and a corresponding plurality of electrodes disposed proximate each side port operable to ionize the ionizable gas prior to the ionizable gas exiting the side-ports. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification