Patent ID: 11890481
Assignee: MEDTRONIC, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 12:
13. A system comprising:
a stimulation generator configured to deliver electrical stimulation to a patient; and
a processor configured to:
increment a counter upon detection of a ventricular tachyarrhythmia event;
anticipate detection of a ventricular tachyarrhythmia in a heart of a patient based on the ventricular tachyarrhythmia not yet being detected but a counter reaching a threshold value of a ventricular tachyarrhythmia event count;
measure an RR interval;
determine, using the RR interval, a sense time period over which ventricular depolarizations need to be sensed in order to detect development of the ventricular tachyarrhythmia;
determine a stimulation time period based on the sense time period;
in response to anticipating detection of the ventricular tachyarrhythmia, control the stimulation generator to deliver electrical stimulation to block an atrioventricular node of the heart over a first time period regardless of the sense time period; and
control the stimulation generator to deliver the electrical stimulation during the stimulation time period over a second time period after the first time period, the stimulation time period being bounded by limits that prevent an accumulation of blanking periods applied to a sensing amplifier that would exceed the sense time period.