Patent ID: 11864825
Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 5:
6. 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 cylindrical body having a distal portion proximal to a tip; and
an electrode assembly disposed longitudinally over the distal portion of the cylindrical elongated body proximal the tip, wherein the electrode assembly comprises a flexible substrate forming a cylinder over the distal portion of the cylindrical catheter body proximal the tip, the cylindrical flexible substrate having: i) a first independently controlled ablation electrode formed by a first longitudinal electrically conducting layer applied directly to the outer surface of the cylindrical flexible substrate, ii) a second independently controlled ablation electrode formed by a second longitudinal electrically conducting layer applied directly to the outer surface of the cylindrical flexible substrate, iii) a first plurality of associated microelectrodes formed within a perimeter of the first ablation electrode, wherein an empty space is disposed between the first ablation electrode and at least one microelectrode of the first plurality of microelectrodes, and iv) a second plurality of associated microelectrodes formed within a perimeter of the second ablation electrode, wherein the first and second ablation electrodes and their associated microelectrodes, respectively, are positioned diametrically opposed to each other circumferentially on the cylindrical flexible substrate;

connecting the catheter to a system controller capable of selectively delivering power to at least one of the ablation electrodes; and
controlling the power to at least one of the ablation electrodes to ablate the portion of the tissue.