Patent ID: 11878174
Assignee: PACESETTER, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 5:
6. The system of claim 5, wherein the controller is configured to:
determine an atrial event-to-threshold crossing interval corresponding to a length of time between the paced or sensed atrial event and a respective crossing of the specified sense threshold within the specified window within the AVD;
specify an atrial oversensing avoidance (AOA) period based on the atrial event-to-threshold crossing interval, the AOA period corresponding to when atrial oversensing may occur following paced or sensed atrial events;
detect a peak amplitude of the portion of the His IEGM that exceeds the specified sense threshold within the AOA period;
detect a peak amplitude of a further portion of the His IEGM, following the AOA period, that corresponds to a ventricular depolarization;
determine a ratio of the peak amplitude within the AOA period to the peak amplitude following the AOA period;
determine whether the determined ratio exceeds a specified ratio threshold; and
determine that an atrial oversensing avoidance technique is to be used in response to determining that the determined ratio exceeds the specified ratio threshold.