US 12,186,107 B2
Identifying reliable vectors
Jaeho Kim, Redmond, WA (US); and Joseph L. Sullivan, Kirkland, WA (US)
Assigned to West Affum Holdings DAC, Dublin (IE)
Filed by WEST AFFUM HOLDINGS DAC, Dublin (IE)
Filed on Oct. 23, 2023, as Appl. No. 18/383,020.
Application 18/383,020 is a continuation of application No. 17/355,105, filed on Jun. 22, 2021, granted, now 11,793,469.
Claims priority of provisional application 63/114,956, filed on Nov. 17, 2020.
Prior Publication US 2024/0050042 A1, Feb. 15, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61N 1/39 (2006.01); A61B 5/00 (2006.01); A61B 5/0245 (2006.01); A61B 5/30 (2021.01); A61B 5/347 (2021.01); A61B 5/364 (2021.01)
CPC A61B 5/7221 (2013.01) [A61B 5/0245 (2013.01); A61B 5/30 (2021.01); A61B 5/347 (2021.01); A61B 5/364 (2021.01); A61N 1/3904 (2017.08)] 20 Claims
OG exemplary drawing
 
1. A wearable cardioverter defibrillator (WCD), comprising:
a support structure wearable by a patient;
a processor;
one or more electrocardiogram (ECG) sensors communicatively coupled with the processor and configured to be positioned on or proximate to the patient, at least in part, by the support structure; and
a discharge circuit configured to discharge a stored electrical charge through a body of the patient, the discharge circuit communicatively coupled with the processor;
the processor configured to:
receive, from the one or more ECG sensors, at least one ECG signal for a period of time from the patient;
analyze the at least one ECG signal to determine a first heart rate using a first method;
analyze the at least one ECG signal to determine a second heart rate using a second method different from the first method;
compare the first and second heart rates to each other;
determine a difference between the first and second heart rates;
determine, from the difference, whether a reliability threshold is satisfied;
classify the at least one ECG signal as reliable responsive to determining that the reliability threshold is satisfied; and
cause the discharge circuit to provide defibrillation therapy to the patient based, at least in part, on the at least one ECG signal being classified as reliable.