Wearable cardioverter defibrillator (wcd) system making shock/no shock determinations from patient's rotational motion

A non-transitory computer-readable storage medium storing one or more programs which, when executed by at least one processor of a wearable cardioverter defibrillator (WCD) system, the WCD system including an energy storage module configured to store an electrical charge, a defibrillation electrode, a support structure configured to be worn by an ambulatory patient so as to maintain the defibrillation electrode on a body of the ambulatory patient, and a rotational measurement module configured to sense a rotational motion of the ambulatory patient and to render a rotational motion detection input responsive to the sensed rotational motion, these one or more programs result in operations comprising:

• receiving the rotational motion detection input;
• determining from the received rotational motion detection input whether or not a shock criterion is met;
• and
• causing, responsive to the shock criterion being met, at least some of the stored electrical charge to be discharged via the defibrillation electrode through the ambulatory patient so as to deliver a shock to the ambulatory patient.

A method for a wearable cardioverter defibrillator (WCD) system, the WCD system including an energy storage module configured to store an electrical charge, a defibrillation electrode, a support structure configured to be worn by an ambulatory patient so as to maintain the defibrillation electrode on a body of the ambulatory patient, a rotational measurement module configured to sense a rotational motion of the ambulatory patient and to render a rotational motion detection input responsive to the sensed rotational motion, and a processor, the method comprising:

• receiving the rotational motion detection input;
• determining from the received rotational motion detection input whether or not a shock criterion is met;
• and
• causing, responsive to the shock criterion being met, at least some of the stored electrical charge to be discharged via the defibrillation electrode through the ambulatory patient so as to deliver a shock to the ambulatory patient.