| abstract |
An ablation catheter comprises an elongated, flexible catheter body having proximal andndistal ends and at least one lumen extending therethrough. A tip electrode having a length of atnleast about 3 mm is mounted on the distal end of the catheter body. The tip electrode comprisesna base material having an outer surface and a porous layer applied over at least a portion of thenouter surface of the base material, the porous layer comprising metal nitride, metal oxide, metalncarbide, metal carbonitride, carbon, carboxy nitride, or a combination thereof. |