Patent ID: 11911622
Assignee: MEDTRONIC, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 21:
22. An implantable medical device system comprising:
sensing circuitry configured to generate signals representing activity of a heart of a patient;
therapy delivery circuitry configured to administer cardiac pacing to a native conduction system of the heart;
processing circuitry configured to:
determine, based on the signals, an intrinsic delay of the heart of the patient;
determine whether the intrinsic delay is indicative of the first-degree heart block being present in the heart of the patient based on whether the intrinsic delay is greater than a threshold;
control the therapy delivery circuitry to administer a pacing pulse to the native conduction system of the heart;
determine a pace-activation delay based on the signals, wherein the pace-activation delay indicates a time between delivery of the pacing pulse and an earliest onset of ventricular activation;
determine a patient-specific timing regime for conduction system pacing based on the intrinsic delay, whether the intrinsic delay is indicative of the first-degree heart block being present in the heart of the patient, and the pace-activation delay;
based on the intrinsic delay being indicative of the first-degree heart block being present in the heart of the patient, determine the patient-specific timing regime based on a minimum of: (i) a sum of a delay between an atrial sense event or an atrial pacing event and an end of a P-wave of the heart and a programmable value minus the pace-activation delay, and (ii) a difference between the intrinsic delay and the pace-activation delay; and

control the therapy delivery circuitry to administer cardiac pacing to the native conduction system of the heart based on the patient-specific timing regime.