Patent ID: 8328801
Filing Date: 2012-12-11
Classification: A61B,A61N,H05K,Y10T

Abstract:
1. An electrosurgical device for directing energy to a target volume of tissue, comprising: a coaxial feedline having an inner conductor, an outer conductor coaxially disposed around the inner conductor, and a dielectric material disposed therebetween; an elongated electrically-conductive member longitudinally disposed at a distal end of the inner conductor; a balun including: an electrically-conductive cylinder coaxially disposed around a distal portion of the electrically-conductive layer of the balun; a dielectric structure disposed substantially adjacent to a distal end of the electrically-conductive cylinder, wherein the dielectric structure longitudinally extends from the distal end of the electrically-conductive cylinder to a distal end of the electrically-conductive member; an elongated handle assembly coaxially disposed around a portion of the outer conductor at a distal end of the coaxial feedline, wherein the handle assembly is disposed proximal to the dielectric structure; and a shell assembly disposed at a distal end of the elongated handle assembly, wherein the shell assembly is coupled to a distal portion of the balun.