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US 12,745,943 B2Granted
Flexible high-density mapping catheter
AssigneeSt. Jude Medical, Cardiology Division, Inc.
InventorsGregory K. Olson, Don Curtis Deno
Life of this patent
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Abstract
Aspects of the present disclosure are directed to flexible high-density mapping catheters with a planar array of high-density mapping electrodes near a distal tip portion. These mapping catheters may be used to detect electrophysiological characteristics of tissue in contact with the electrodes, and may be used to diagnose cardiac conditions, such as cardiac arrhythmias for example.
Claims20
An electrophysiology catheter, the catheter comprising:
- an elongated catheter body comprising a proximal end and a distal end, and defining a catheter longitudinal axis extending between the proximal end and the distal end;
- a flexible tip assembly coupled to the distal end of the catheter body and adapted to conform to tissue, the flexible tip assembly comprising a plurality of electrode-carrying arms, the plurality of electrode-carrying arms comprising:
- a first longitudinally-extending outer arm;
- a second longitudinally-extending outer arm;
- and
- at least two longitudinally-extending inner arms,
- wherein the first and second longitudinally-extending outer arms form an outer frame and the at least two longitudinally-extending inner arms form at least one inner frame, the at least one inner frame being at least partially disposed within the outer frame;
- a plurality of electrodes disposed on each of the plurality of electrode-carrying arms;
- a first magnetic sensor disposed on the first longitudinally-extending outer arm;
- and
- a second magnetic sensor disposed on the second longitudinally-extending outer arm,
- wherein the plurality of electrodes are equally spaced along both a length of each arm and across adjacent arms of the plurality of electrode-carrying arms.
9 more elements
An electrophysiology ablation catheter, the ablation catheter comprising:
- an elongated catheter body comprising a proximal end and a distal end, and defining a catheter longitudinal axis extending between the proximal end and the distal end;
- a flexible tip assembly coupled to the distal end of the catheter body and adapted to conform to and contact tissue, wherein the flexible tip assembly includes a plurality of electrode-carrying arms;
- a plurality of electrodes disposed on each of the plurality of electrode-carrying arms, wherein the plurality of electrodes are configured to selectively ablate target tissue;
- and
- a plurality of flexible electronic circuit boards that are communicatively and mechanically coupled to the plurality of electrodes,
- wherein the plurality of electrodes are equally spaced along both a length of each arm and across adjacent arms.
3 more elements
Dependencies are inferred from the claim text.