Patent ID: 7306596

Claim:
An electrosurgical apparatus for treating tissue comprising: an elongate shaft having a proximal region, a distal region comprising a conductive region and one or more lumens therethrough; one or more apertures defined by the shaft in communication with at least one of said one or more lumens; a stylet occluding at least a portion of an opening defined by a distal end of said elongate shaft; an electrical connector permanently coupled to said proximal region via a flexible electrical cable for coupling said shaft to a power source for supplying energy to said conductive region; a temperature sensor associated with said distal region; and at least one fluid delivery interface connection permanently coupled to said proximal region via a flexible tube for coupling a fluid delivery mechanism to deliver a treatment composition through at least one of said one or more apertures; wherein said temperature sensor comprises a thermocouple and wherein said stylet is a component of said thermocouple.