Catheter with shunting electrode
AssigneeBiosense Webster (Israel) Ltd.
InventorsKruti Shah, Alexander Lifshitz, Jerry Schmidt
Life of this patent
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Abstract
A catheter with an electrode assembly has a functional electrode located at a first position on the electrode assembly and a shunting electrode located proximal to the first position. Irrigation fluid carried by the catheter may be electrically coupled with a patient's blood through the shunting electrode. The shunting electrode may be used to reduce noise in an electrocardiogram signal that results from the pump used to supply the irrigation fluid.
Claims12
A catheter comprising an elongated catheter body having proximal and distal ends, an irrigation lumen extending through the elongated catheter body and an electrode assembly at the distal end of the catheter body, the electrode assembly comprising a functional electrode located at a first position on the electrode assembly, and a shunting electrode located proximal to the first position, wherein the shunting electrode is configured to be electrically coupled to irrigation fluid contained within the irrigation lumen.
A method for treatment comprising:
- providing a catheter having an elongated catheter body with proximal and distal ends, an irrigation lumen extending through the elongated catheter body and an electrode assembly at the distal end of the catheter body, the electrode assembly comprising a functional electrode located at a first position on the electrode assembly and a shunting electrode located proximal to the first position;
- advancing the distal end of the catheter with the electrode assembly to a desired region within a patient;
- supplying irrigation fluid through the irrigation lumen;
- and
- electrically coupling the irrigation fluid with blood in the desired region within the patient through the shunting electrode.
Dependencies are inferred from the claim text.