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US 11,766,206 B2Granted
Electrode arrangement to sense cardiac wave vector
AssigneeBiosense Webster (Israel) Ltd.
InventorAssaf Govari
Life of this patent
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Abstract
A system includes two or more pairs of electrodes and a processor. The electrodes are disposed over a distal end of a catheter for insertion into a heart of a patient. The electrodes in each pair are parallel with one another, and the pairs are not parallel with one another. The processor is configured to receive electrophysiological (EP) signals acquired by the pairs of electrodes, and, based on a timing of the received EP signals, calculate a local direction at which the received EP signals propagate in the heart.
Claims12
A system, comprising:
- two or more electrode pairs disposed over a distal end of a catheter for insertion into a heart of a patient, the two or more electrode pairs being positioned in a same semicylindrical portion of the catheter along a longitudinal axis of the catheter and configured in a predetermined pattern to acquire electrical signals indicative of a direction of a propagating electrophysiological (EP) wave relative to the longitudinal axis of the catheter, wherein the predetermined pattern is configured such that:
- (i) the electrodes in each pair are parallel with one another, (ii) the electrodes in each electrode pair extend substantially in a same plane and not parallel to the electrodes in a neighboring electrode pair, and (iii) each electrode pair is aligned about a common center with the neighboring electrode pair in the same semicylindrical portion;
- and
- a processor, which is configured to:
- receive EP signals acquired by the pairs of electrodes;
- calculate a difference in timing of acquisition of the EP signal received by each electrode pair of the electrode pairs, respectively;
- calculate a local direction at which the received EP signals propagate in the heart in the same plane of the catheter, in response to the calculated difference in timing of acquisition of the received EP signals by each electrode pair of electrode pairs;
- and
- add the calculated local direction to an EP map.
6 more elements
A method, comprising:
- receiving electrophysiological (EP) signals acquired by two or more electrode pairs disposed over a distal end of a catheter for insertion into a heart of a patient, the two or more electrode pairs positioned in a same semicylindrical portion of the catheter along a longitudinal axis of the catheter and configured in a predetermined pattern to acquire electrical signals indicative of a direction of a propagating EP wave relative to the longitudinal axis of the catheter, wherein the predetermined pattern is configured such that (i) the electrodes in each pair are parallel with one another, (ii) the electrodes in each electrode pair extend substantially in a same plane and not parallel to the electrodes in a neighboring electrode pair, and (iii) each electrode pair is aligned about a common center with the neighboring electrode pair in the same semicylindrical portion;
- calculating a difference in timing of acquisition of the EP signal received by each electrode pair of the electrode pairs, respectively;
- calculating a local direction at which the received EP signals propagate in the heart in the same plane of the catheter, in response to the calculated difference in timing of acquisition of the received EP signals by each electrode pair of electrode pairs;
- and
- adding the calculated local direction to an EP map.
2 more elements
A computer program product, comprising a non-transitory computer-readable medium having computer-readable program code embodied therein to be executed by one or more processors, the program code including instructions to:
- receive electrophysiological (EP) signals acquired by two or more electrode pairs disposed over a distal end of a catheter for insertion into a heart of a patient, the two or more electrode pairs positioned in a same semicylindrical portion of the catheter along a longitudinal axis of the catheter and configured in a predetermined pattern to acquire electrical signals indicative of a direction of a propagating EP wave relative to the longitudinal axis of the catheter, wherein the predetermined pattern is configured such that:
- (i) the electrodes in each pair are parallel with one another, (ii) the electrodes in each electrode pair extend substantially in a same plane and not parallel to the electrodes in a neighboring electrode pair, and (iii) each electrode pair is aligned about a common center with the neighboring electrode pair in the same semicylindrical portion;
- calculate a difference in timing of acquisition of the EP signal received by each electrode pair of the electrode pairs, respectively;
- calculating a local direction at which the received EP signals propagate in the heart in the same plane of the catheter, in response to the calculated difference in timing of acquisition of the received EP signals by each electrode pair of electrode pairs;
- and adding the calculated local direction to an EP map.
2 more elements
Dependencies are inferred from the claim text.