Cardiac activity sensing during pacing in implantable devices

Details Cardiac activity sensing during pacing in implantable devices Cardiac activity sensing during pacing in implantable devices

2007-06-26

2007-06-26

Layno, Carl (Department: 3766)

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

C607S009000, C607S004000, C607S002000, C607S027000, C607S115000, C607S116000, C600S372000, C600S373000, C600S374000, C600S377000, C600S381000, C600S510000

Reexamination Certificate

active

10836359

ABSTRACT:
A method and device for sensing cardiac activity that includes a first plurality of electrodes forming a first electrode configuration to sense cardiac activity, a second plurality of electrodes forming a second electrode configuration to sense cardiac activity, and a third plurality of electrodes to deliver a stimulation pulse in response to the sensed cardiac activity. A microprocessor determines whether an escape interval associated with the delivered stimulation pulse is less than a rate limit interval, and a control circuit switches from the first plurality of electrodes to the second plurality of electrodes in response to the escape interval being less than the rate limit interval.

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