US 12,434,067 B2
Wearable cardioverter defibrillator (WCD) system computing heart rate from noisy ECG signal
Joseph L. Sullivan, Kirkland, WA (US)
Assigned to West Affum Holdings DAC, Dublin (IE)
Filed by West Affum Holdings DAC, Dublin (IE)
Filed on Jul. 19, 2023, as Appl. No. 18/223,727.
Application 18/223,727 is a continuation of application No. 17/172,859, filed on Feb. 10, 2021, granted, now 11,724,118.
Application 17/172,859 is a continuation of application No. 15/948,884, filed on Apr. 9, 2018, granted, now 10,940,324, issued on Mar. 9, 2021.
Application 15/948,884 is a continuation in part of application No. 15/880,853, filed on Jan. 26, 2018, abandoned.
Claims priority of provisional application 62/501,009, filed on May 3, 2017.
Prior Publication US 2024/0001131 A1, Jan. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61N 1/00 (2006.01); A61B 5/00 (2006.01); A61B 5/024 (2006.01); A61B 5/0245 (2006.01); A61B 5/25 (2021.01); A61B 5/339 (2021.01); A61B 5/352 (2021.01); A61B 5/361 (2021.01); A61N 1/02 (2006.01); A61N 1/39 (2006.01); A61B 5/02 (2006.01); A61B 5/021 (2006.01); A61B 5/026 (2006.01); A61B 5/08 (2006.01); A61B 5/11 (2006.01); A61B 5/145 (2006.01); A61B 5/1455 (2006.01); A61B 5/341 (2021.01); A61B 5/364 (2021.01); A61N 1/04 (2006.01); A61N 1/08 (2006.01)
CPC A61N 1/3987 (2013.01) [A61B 5/0002 (2013.01); A61B 5/02438 (2013.01); A61B 5/0245 (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 5/02028 (2013.01); A61B 5/021 (2013.01); A61B 5/02405 (2013.01); A61B 5/0261 (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 2001/083 (2013.01); A61N 1/3968 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wearable cardioverter defibrillator (WCD) system, comprising:
a support structure configured to be worn by a patient;
an energy storage module configured to store an electrical charge;
a discharge circuit coupled to the energy storage module;
a plurality of electrodes configured to be coupled with the patient's body; and
a processor configured to:
sense, with the plurality of electrodes, a first Electrocardiogram (ECG) signal of the patient in a first channel, and a second ECG signal of the patient in a second channel;
identify a first group of peaks in the first ECG signal;
measure intervals between a first number of peaks in the first group of peaks to provide a first set of intervals from the first channel;
identify a second group of peaks in the second ECG signal;
measure intervals between a second number of peaks in the second group of peaks to provide a second set of intervals from the second channel;
combine the first set of intervals from the first channel with the second set of intervals from the second channel to provide a combined group of intervals;
identify a mode interval in the combined group of intervals corresponding to a mode of the combined group of intervals, wherein the mode of the combined group of intervals comprises a most frequently occurring interval;
compute a heart rate value for the patient from the mode interval;
determine, based at least in part on the heart rate value, whether one or more shock criteria are met; and
control, responsive to the one or more shock criteria 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 therapeutic shock to the patient.