Patent ID: 7955330

Claim:
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.