Ablation catheter with selective radial energy delivery
AssigneeBiosense Webster (Israel) Ltd.
InventorDebby Highsmith
Life of this patent
Estimating the term…
Abstract
An electrode assembly for use with an electrophysiological catheter has a plurality of independently controlled ablation electrodes distributed radially around the electrode assembly. Two ablation electrodes may be positioned in opposition to each other. The electrode assembly may also have microelectrodes for sensing tissue and/or temperature. Methods for using a catheter equipped with such an electrode assembly may include preferentially emitting energy in a radial direction.
Claims20
An electrode assembly configured to be disposed over a distal portion of a catheter body, wherein the electrode assembly comprises a flexible substrate and a plurality of independently controlled ablation electrodes distributed radially around the electrode assembly.
A catheter comprising an elongated catheter body having proximal and distal ends and an electrode assembly, wherein the electrode assembly is disposed over a distal portion of the catheter body and wherein the electrode assembly comprises a flexible substrate and a plurality of independently controlled ablation electrodes distributed radially around the electrode assembly.
A method for constructing an electrode assembly to be disposed over a catheter body, comprising providing a flexible substrate having opposing edges, applying a plurality of independently controlled ablation electrodes to a surface of the flexible substrate, and joining the opposing edges of the substrate to form a cylinder, wherein the ablation electrodes are distributed radially around the cylinder.
A method for the ablation of a portion of tissue of a patient by an operator comprising:
- inserting a catheter into the patient, wherein the catheter comprises:
- an elongated body;
- and
- an electrode assembly disposed over a distal portion of the elongated body, wherein the electrode assembly comprises a plurality of independently controlled ablation electrodes distributed radially around the electrode assembly;
- connecting the catheter to a system controller capable of selectively delivering power at least one of the ablation electrodes;
- and
- controlling the power to the at least one ablation electrode to ablate tissue.
Dependencies are inferred from the claim text.