Patent ID: 6123703
Filing Date: 2000-09-26
Classification: A61B

Abstract:
An ablation catheter system comprising:a delivery catheter having a distal section, a distal end, a proximal end, and at least one lumen extending therebetween, wherein the delivery catheter has at least one opening at the distal section;a handle attached to the proximal end of the delivery catheter, wherein the handle has a cavity;an inner catheter located within the at least one lumen of the delivery catheter, the inner catheter having a tip section, a distal end and a proximal end;a retractable metallic element means mounted on the tip section of the inner catheter, wherein the retractable metallic element means is preshaped and preformed in a close loop fashion and is wrapped around the distal section of the delivery catheter, and wherein an electrical conductor is connected to the retractable metallic element means;an electrode deployment means mounted on the handle, wherein the electrode deployment means is attached to the proximal end of the inner catheter; anda RF energy generating means, wherein the RF energy is provided through the electrical conductor to the retractable metallic element means.