CPC A61N 1/3987 (2013.01) [A61B 5/0002 (2013.01); A61B 5/0245 (2013.01); A61B 5/02438 (2013.01); A61B 5/25 (2021.01); A61B 5/339 (2021.01); A61B 5/352 (2021.01); A61B 5/361 (2021.01); A61B 5/6823 (2013.01); A61B 5/7203 (2013.01); A61N 1/025 (2013.01); A61N 1/3904 (2017.08); A61B 5/0006 (2013.01); A61B 5/021 (2013.01); A61B 5/02028 (2013.01); A61B 5/0261 (2013.01); A61B 5/02405 (2013.01); A61B 5/0816 (2013.01); A61B 5/1112 (2013.01); A61B 5/14542 (2013.01); A61B 5/14551 (2013.01); A61B 5/341 (2021.01); A61B 5/364 (2021.01); A61B 5/7275 (2013.01); A61N 1/0484 (2013.01); A61N 1/3968 (2013.01); A61N 2001/083 (2013.01)] | 16 Claims |
1. A method for a wearable cardioverter defibrillator (WCD) system, the WCD system including a support structure configured to be worn by an ambulatory patient, an energy storage module storing an electrical charge, a discharge circuit coupled to the energy storage module, a processor, a memory and electrodes, the method comprising:
sensing, by the electrodes, a first Electrocardiogram (ECG) signal of the patient, and then sensing a second ECG signal after sensing the first ECG signal;
detecting with the processor peaks occurring sequentially within the first ECG signal;
establishing pairs of the detected peaks with the processor, at least one of the pairs being established by peaks not occurring sequentially,
measuring with the processor durations of time intervals defined by the established pairs;
identifying with the processor and from the measured durations, a representative duration that meets a plausibility criterion;
computing a heart rate of the patient with the processor from a duration indicated by the representative duration;
storing in the memory from the processor the computed heart rate;
determining with the processor and from the second ECG signal whether or not a shock criterion is met; and
controlling, with the processor and responsive to the shock criterion being met, the discharge circuit to discharge the stored electrical charge through the patient while the support structure is worn by the patient to deliver a shock to the patient.
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