Patent ID: 8262653
Filing Date: 2012-09-11
Classification: A61B

Abstract:
1. An irrigated electrode catheter for ablating tissue, the catheter comprising: a catheter body having proximal and distal ends and a lumen extending therethrough; a tip section having proximal and distal ends, the proximal end of the tip section being fixedly attached to the distal end of the catheter body; a porous tip electrode fixedly attached to the distal end of the tip section, the tip electrode comprising a non-conductive porous material and a conductive porous coating adapted to cover the non-conductive porous material, wherein the conductive porous coating has a thickness of about 0.2 μm to about 2 μm; and an irrigation tube extending through the catheter body and into the porous tip electrode of the tip section, whereby fluid passing through the irrigation tube can pass through the non-conductive porous material and the conductive porous coating to reach surrounding tissue.