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

Claim 20:
21. 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 a first-degree heart block being present in the heart of the patient based on whether the intrinsic delay is less than a threshold;
control the therapy delivery circuitry to administer a cardiac pacing pulse to a native conduction system of the heart of the patient;
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 coefficient multiplied by the intrinsic 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 of the patient based on the patient-specific timing regime.