Patent ID: 7789877

Claim:
An ablation catheter comprising: a tubular body having a circumference, at least one actuating lumen sealed at a first end and open to fluid flow at a second end, and a distal end region, the tubular body defining at least a partial curve along the distal end region of the tubular body, the partial curve being adapted to change curvature when a fluid pressure in the at least one actuating lumen changes; and at least one ablating electrode arranged along the at least partial curve, the at least one electrode being adapted to change curvature along with the at least partial curve along the distal end region of the tubular body; the tubular body further comprising at least one ablation fluid supply lumen extending through the at least partial curve of the distal end region and including at least one manifold to permit a fluid to exit the at least one ablation fluid supply lumen, wherein the at least one manifold includes at least one manifold inlet port in fluid communication with an ablating fluid outlet port, the ablating fluid outlet port having a larger cross-sectional area than the at least one manifold inlet port, and wherein the at least one electrode is configured to be flexible and resilient, and wherein the at least one electrode extends around only a portion of the circumference of the tubular body.