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US 2022/0175445 A1Published application
Radio-frequency ablation and direct current electroporation catheters
AssigneeSt. Jude Medical, Cardiology Division, Inc.
InventorsDerek C. Sutermeister, Troy T. Tegg, Salome A. Gonzalez
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Abstract
Aspects of the present disclosure are directed to flexible catheters for both electrophysiology mapping and ablation using a high-density array of electrodes. These catheters may be used to detect electrophysiological characteristics of tissue in contact with the electrodes, and conduct monopolar and bipolar ablations of the tissue.
Claims17
A planar array catheter comprising:
- an elongated catheter shaft including a proximal end and a distal end, and defining a longitudinal axis;
- and
- a flexible, planar array coupled to the distal end of the catheter shaft, the planar array configured to conform to tissue, and including two or more struts extending substantially parallel with the longitudinal axis, each of the struts lying in a common plane and having a plurality of electrodes coupled thereto;
- wherein the plurality of electrodes are configured to:
- detect electrophysiological characteristics of tissue in contact with the planar array;
- and
- operate in a bipole configuration to deliver a high-voltage direct current to the contacted tissue to affect selective tissue ablation.
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Dependencies are inferred from the claim text.