Patent ID: 7763018
Filing Date: 2010-07-27
Classification: A61B

Abstract:
1. An ablation electrode system for use with a source of electrosurgical energy to ablate tissue in a living subject, the ablation electrode system comprising: a handle assembly; a needle electrode assembly supported in and extending from the handle assembly, the needle electrode assembly including: a hub assembly supported within the handle assembly and fluidly connected to the needle electrode assembly, the hub assembly including: the inner manifold and the outer shell being configured and dimensioned so as to define a first chamber and a second chamber therebetween; wherein the proximal end portion of the inner tube is in fluid communication with the first chamber and the proximal end portion of the outer tube is in fluid communication with the second chamber; an electrical conduit electrically connected to the outer tube of the needle electrode assembly; a first fluid conduit fluidly connected to the first chamber; and a second fluid conduit fluidly connected to the second chamber.