Patent ID: 6156033
Filing Date: 2000-12-05
Classification: A61B,A61M

Abstract:
An ablation catheter comprising:a delivery catheter having a distal end, a proximal end, and at least one lumen extending between the distal end and the proximal end;a handle attached to the proximal end of the delivery catheter;an inner catheter located within the at least one lumen of the delivery catheter, the inner catheter having a distal tip section, a distal end, a proximal end, and a central lumen extending between the distal end and the proximal end of the inner catheter, wherein the distal tip section having at least one electrode; anda plurality of needles on the at least one electrode, each having a tip, wherein a longitudinal length of said at least one electrode is 4 mm or longer, a distance between the tips of the needles is 2 mm or less, a height of each needle is 1 mm or less, and wherein the plurality of needles on the at least one electrode face a target tissue side.