Patent ID: 11896839
Assignee: PACESETTER, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 13:
14. An implantable medical device or system, comprising:
a plurality of electrodes at least one of which is configured to be implantable in an atrial chamber;
a pulse generator configured to deliver atrial pacing pulses using one or more of the electrodes;
one or more sensing circuits configured to sense an intracardiac electrogram (IEGM) using one or more of the electrodes; and
a controller configured to
determine, based on the sensed IEGM, when a patient is experiencing an atrial tachycardia or atrial fibrillation (AF) while an intrinsic atrial rate of the patient is within a specified range;
classify the patient's intrinsic atrial activity as one of stable or unstable while the patient is experiencing the atrial tachycardia or AF and the intrinsic atrial rate of the patient is within the specified range; and
control the pulse generator to deliver atrial overdrive pacing while the patient is experiencing the atrial tachycardia or AF and the intrinsic atrial rate of the patient is within the specified range, in response to the patient's intrinsic atrial activity being classified as stable, to attempt convert the atrial tachycardia or AF to a normal sinus rhythm.