US 11,938,333 B2
Detecting walking in a wearable cardioverter defibrillator system
Jaeho Kim, Redmond, WA (US); Joseph L Sullivan, Kirkland, WA (US); and Robert P. Marx, Redmond, WA (US)
Assigned to West Affum Holdings DAC, Dublin (IE)
Filed by West Affum Holdings DAC, Dublin (IE)
Filed on Jul. 29, 2022, as Appl. No. 17/876,735.
Application 17/876,735 is a division of application No. 16/158,174, filed on Oct. 11, 2018, granted, now 11,400,303.
Application 16/158,174 is a continuation in part of application No. 15/863,551, filed on Jan. 5, 2018, granted, now 11,083,906, issued on Aug. 10, 2021.
Claims priority of provisional application 62/717,490, filed on Aug. 10, 2018.
Claims priority of provisional application 62/483,617, filed on Apr. 10, 2017.
Claims priority of provisional application 62/446,820, filed on Jan. 16, 2017.
Claims priority of provisional application 62/442,925, filed on Jan. 5, 2017.
Prior Publication US 2022/0362569 A1, Nov. 17, 2022
Int. Cl. A61N 1/39 (2006.01); A61B 5/00 (2006.01); A61B 5/11 (2006.01); A61B 5/282 (2021.01); A61B 5/361 (2021.01); A61B 5/363 (2021.01); A61N 1/04 (2006.01); A61N 1/365 (2006.01)
CPC A61N 1/3987 (2013.01) [A61B 5/11 (2013.01); A61B 5/1123 (2013.01); A61B 5/282 (2021.01); A61B 5/6802 (2013.01); A61B 5/6823 (2013.01); A61B 5/7257 (2013.01); A61B 5/746 (2013.01); A61N 1/39046 (2017.08); A61N 1/3993 (2013.01); A61B 5/361 (2021.01); A61B 5/363 (2021.01); A61B 5/6805 (2013.01); A61B 5/6831 (2013.01); A61B 2562/0219 (2013.01); A61N 1/046 (2013.01); A61N 1/0484 (2013.01); A61N 1/36542 (2013.01); A61N 1/3925 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for use in a wearable cardioverter defibrillator (WCD), the WCD comprising a motion sensor, a processor, a discharge circuit, and an energy storage device with stored electrical charge, the motion sensor configured to output one or more signals indicative of an acceleration of an ambulatory patient in a vertical direction while the ambulatory patient is wearing the WCD, the method comprising:
receiving the one or more signals from the motion sensor;
receiving the ECG signal;
determining from the ECG signal whether a shock criterion is met;
responsive to the shock criterion being met, performing one or more tests on the one or more signals received from the motion sensor to determine if the patient is walking or running, wherein at least one of the one or more tests being based on a parameter derived from the patient's acceleration in the vertical direction;
responsive to a determination that the patient is not walking or running, causing the discharge circuit to discharge the stored electrical charge; and
responsive to a determination that the patient is walking or running, inhibiting the discharge circuit from discharging the stored electrical charge.