Ablation catheter and method for electrically isolating cardiac tissue
AssigneeSt. Jude Medical, Atrial Fibrillation Division, Inc.
InventorsFrederik Henricus Mattheus Wittkampf, Helmert Van Wessel, Richard E. Stehr, Martin M. Grasse
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Abstract
Ablation catheter comprising an elongate member with proximal and distal ends, wherein the distal end is arranged to apply a high energy electrical shock from a plurality of locations along the length of said distal end and wherein said distal end is curved. Preferably the distal end of the elongate member extends in a circle segment.
Claims20
A system for ablating cardiac tissue of a subject, the system comprising:
- a power source;
- and
- an ablation catheter electrically coupled to the power source, the ablation catheter comprising:
- an elongate member extending along a longitudinal axis;
- and
- an ablation array coupled to the elongate member and forming a loop, wherein the ablation array comprises a plurality of electrodes circumferentially spaced around the loop, wherein the loop defines a plane that is oriented obliquely relative to the longitudinal axis, wherein the ablation array is configured to ablate cardiac tissue by applying electrical energy between the plurality of electrodes, and wherein the ablation array is configured to apply the electrical energy based on a measured QRS complex of the subject.
An ablation catheter for ablating cardiac tissue of a subject, the ablation catheter comprising
- an elongate member extending along a longitudinal axis;
- and
- an ablation array coupled to the elongate member and forming a loop, wherein the ablation array comprises a plurality of electrodes circumferentially spaced around the loop, wherein the loop defines a plane that is oriented obliquely relative to the longitudinal axis, wherein the ablation array is configured to ablate cardiac tissue by applying electrical energy between the plurality of electrodes, and wherein the ablation array is configured to apply the electrical energy based on a measured QRS complex of the subject.
A method for ablating cardiac tissue of a subject, the method comprising:
- electrically coupling a power source to an ablation catheter, the ablation catheter including an elongate member extending along a longitudinal axis, and an ablation array coupled to the elongate member and forming a loop, wherein the ablation array comprises a plurality of electrodes circumferentially spaced around the loop, wherein the loop defines a plane that is oriented obliquely relative to the longitudinal axis;
- and
- applying electrical energy between the plurality of electrodes to ablate cardiac tissue, wherein the electrical energy is applied based on a measured QRS complex of the subject.
Dependencies are inferred from the claim text.