Patent ID: 11931585
Assignee: MEDTRONIC, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 3:
4. The medical device of claim 1, wherein the control circuit is configured to detect the alternating pattern of the signal features by:
determining a first signal feature from a first signal segment of the at least one cardiac electrical signal, a second signal feature from a second signal segment of the at least one cardiac electrical signal and a third signal feature from a third signal segment of the at least one cardiac electrical signal, the first, second and third signal segments corresponding to first, second and third cardiac events, respectively, detected consecutively from the at least one cardiac electrical signal;
setting a first difference threshold based on one of the first signal feature or the second signal feature;
determining a first difference between the first signal feature and the second signal feature;
determining that the first difference is greater than the first difference threshold;
setting a second difference threshold based on one of the second signal feature or the third signal feature;
determining a second difference between the second signal feature and the third signal feature;
determining that the second difference is greater than the second difference threshold; and
detecting the alternating pattern in response to the first difference being greater than the first difference threshold and the second difference being greater than the second difference threshold.