US 12,232,879 B2
Atrial fibrillation 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. 30, 2021, as Appl. No. 17/390,780.
Claims priority of provisional application 63/216,187, filed on Jun. 29, 2021.
Prior Publication US 2022/0409118 A1, Dec. 29, 2022
Int. Cl. A61B 5/361 (2021.01); A61B 5/00 (2006.01); A61B 5/33 (2021.01)
CPC A61B 5/361 (2021.01) [A61B 5/33 (2021.01); A61B 5/7217 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wearable medical device (WMD) system for detecting atrial fibrillation (AF) in a patient capable of being ambulatory while using the WMD system, the WMD system comprising:
a plurality of electrocardiogram (ECG) electrodes configured to sense a multichannel ECG signal while the patient is using the WMD system;
a support structure configured to position at least one of the plurality of ECG electrodes to contact a body of the patient while the support structure is worn by the patient;
one or more processors, communicatively coupled to the plurality of ECG electrodes, configured with:
a first AF detection module configured to analyze the multichannel ECG signal using a first algorithm and output first information, and
a second AF detection module configured to analyze the multichannel ECG signal using a second algorithm with a different noise tolerance from the first algorithm and output second information,
wherein, based at least in part on the first information and the second information, the one or more processors determine whether the multichannel ECG signal is indicative of AF; and
a communication module, communicatively coupled to the one or more processors, configured to:
responsive to a determination that the multichannel ECG signal is indicative of AF, provide a notification that the AF has been detected.