Patent ID: 11865351
Assignee: PHYSIO-CONTROL, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 5:
6. The medical device of claim 4, wherein the first time interval comprises an earlier time interval and a subsequent time interval, the subsequent time interval occurring after the earlier time interval, and
wherein the processor is configured to compare the first ECG signal and the second ECG signal in accordance with the selection criterion by:
identifying an amplitude of peaks in a segment of the first ECG signal detected during the earlier time interval;
identifying an amplitude of peaks in a segment of the first ECG signal detected during the subsequent time interval;
determining a first ratio corresponding to the amplitude of the peaks in the segment of the first ECG signal detected during the earlier time interval and the amplitude of the peaks in the segment of the first ECG signal detected during the subsequent time interval;
identifying an amplitude of peaks in a segment of the second ECG signal detected during the earlier time interval;
identifying an amplitude of peaks in a segment of the second ECG signal detected during the subsequent time interval;
determining a second ratio corresponding to the amplitude of the peaks in the segment of the second ECG signal detected during the earlier time interval and the amplitude of the peaks in the segment of the second ECG signal detected during the subsequent time interval; and
comparing the first ratio and the second ratio.