Patent ID: 9616199
Date: 2017-04-11
CPC Classifications: A61B,A61M,Y10T

Claim:
1. An apparatus, comprising: a catheter shaft having a proximal end portion and a distal end portion, the distal portion including a plurality of irrigation passageways; at least one electrode on the distal end portion of the catheter shaft; and a multi-lumenal fluid delivery tube extending from the proximal end portion of the catheter shaft and through the catheter shaft, wherein the multi-lumenal fluid delivery tube defines a plurality of separate fluid delivery lumens including a first fluid delivery lumen and a second fluid delivery lumen, wherein the first fluid delivery lumen is in fluid communication with a first subset of the plurality of irrigation passageways and fluidly isolated from a second subset of the plurality of irrigation passageways; and wherein the second fluid delivery lumen is in fluid communication with a third subset of the plurality of irrigation passageways and fluidly isolated from a fourth subset of the plurality of irrigation passageways.