Patent ID: 11950915
Assignee: CARDIAC PACEMAKERS, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A method of operation in a cardiac rhythm management device comprising plural sensing electrodes for capturing a cardiac signal and operational circuitry coupled to the plural sensing electrodes for analyzing the cardiac signal, the operational circuitry configured with a selectable filtering mode allowing filtering the captured cardiac signal according to a first approach and a second approach, the second approach applying an additional high pass filter relative to the first approach, the method comprising:
filtering cardiac signals with the second approach and analyzing the cardiac signals that have been filtered with the second approach to detect cardiac cycles;
determining that conditions indicate a termination of the second approach is appropriate by analyzing intervals between detected cardiac cycles, and determining that plural such intervals exceed one or more predefined thresholds; and
switching to use of the first approach for filtering the cardiac signals.