US 12,220,584 B2
Asystole and complete heart block detection
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. 24, 2023, as Appl. No. 18/225,578.
Application 18/225,578 is a division of application No. 17/142,477, filed on Jan. 6, 2021, granted, now 11,717,687.
Claims priority of provisional application 62/957,411, filed on Jan. 6, 2020.
Prior Publication US 2024/0024686 A1, Jan. 25, 2024
Int. Cl. A61N 1/365 (2006.01); A61B 5/352 (2021.01); A61N 1/362 (2006.01); A61N 1/39 (2006.01)
CPC A61N 1/365 (2013.01) [A61B 5/352 (2021.01); A61N 1/3625 (2013.01); A61N 1/3904 (2017.08)] 7 Claims
OG exemplary drawing
 
1. A method to detect bradycardia in a patient using a wearable cardioverter defibrillator (WCD), wherein the WCD includes a support structure wearable by the patient, a plurality of electrocardiogram (ECG) electrodes capable of being applied to the skin of the patient to obtain an ECG signal, a processor to receive and analyze the ECG signal of the patient, wherein the processor is configured to monitor four or more channels of the ECG signal, and a high voltage subsystem coupled with defibrillation electrodes configured to be coupled with patient, wherein the high voltage subsystem is configured to apply a therapeutic shock to the patient through the defibrillation electrodes in response to a shockable detected by the processor from the ECG signal, the method comprising:
monitoring the ECG signal of the patient to determine a heart rate of the patient;
monitoring respiration of the patient;
determining whether the heart rate of the patient is in a conditional zone defined as being less than a conditional threshold for bradycardia and above an absolute threshold for bradycardia;
detecting non-perfusing bradycardia in the patient when the heart rate is in the conditional zone and no respiration is detected; and
applying pacing to the patient responsive to detecting non-perfusing bradycardia in the patient.