Irrigated catheter with fluid evacuation

摘要

A catheter for use with a suction source for removing excess fluid from a tissue treatment site has a catheter body, a distal section and a fluid evacuation path, where the distal section includes a multi-lumened member and at least one evacuation port, and the fluid evacuation path extends through a lumen in the multi-lumened member to provide suction communication between the suction source and the at least one evacuation port. The fluid evacuation path may also be configured for two-way flow, including distally and proximally along the catheter.

主权项

1. An ablation catheter for use with a suction source comprising:
an elongated catheter body; a distal section distal the catheter body, the distal section comprising:
a tip electrode adapted for ablation and irrigation;a multi-lumened member extending between the catheter body and the tip electrode, the multi-lumened member having a first lumen and a second lumen;at least one dedicated evacuation port in the tip electrode or in a sidewall of the multi-lumened member, the at least one evacuation port being in suction communication with the first lumen; andat least one dedicated irrigation port in the tip electrode in fluid communication with the second lumen; and a fluid evacuation path extending at least through the catheter body and the first lumen, the fluid evacuation path configured to provide suction communication between the suction source and the at least one dedicated evacuation port.