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

1. A wearable cardioverter defibrillator (WCD) system for an ambulatory patient, comprising:

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;

an ambient air pressure sensor configured to sense an ambient air pressure and to render an ambient air pressure input responsive to the sensed ambient air pressure; and

a processor configured to:

receive the rotational motion detection input,

receive the ambient air pressure input,

determine from the received rotational motion detection input and from the received ambient air pressure input whether a shock criterion is met, and

cause, 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.

2. The WCD system of claim 1 , further comprising:

a memory configure to store the received rotational motion detection input.

3. The WCD system of claim 1 , in which

the processor is further configured to receive an additional input, and

it is determined whether the shock criterion is met also from the additional input.

4. The WCD system of claim 3 , further comprising:

a memory configure to store the received additional input.

5. The WCD system of claim 3 , further comprising:

an electrocardiogram (ECG) electrode configured to sense an ECG signal of the ambulatory patient and to render an ECG input responsive to the sensed ECG signal, and

in which the ECG input is the additional input.

6. The WCD system of claim 3 , further comprising:

a magnetic field sensing module configured to sense a magnetic field of the earth and to render a magnetic field input responsive to the sensed magnetic field, and

in which the magnetic field input is the additional input.

7. The WCD system of claim 3 , further comprising:

a pulse detector configured to sense a pulse of the ambulatory patient and to render a pulse detection input responsive to the sensed pulse, and

in which the pulse detection input is the additional input.

8. 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, 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 an ambient air pressure sensor configured to sense an ambient air pressure and to render an ambient air pressure input responsive to the sensed ambient air pressure, these one or more programs result in operations comprising:

receiving the rotational motion detection input;

receiving the ambient air pressure input;

determining from the received rotational motion detection input and from the received ambient air pressure input whether 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.

9. The medium of claim 8 , in which

the WCD system further includes a memory, and

when the one or more programs are executed by the at least one processor, the operations further comprise:

storing in the memory the received rotational motion detection input.

10. The medium of claim 8 , in which when the one or more programs are executed by the at least one processor, the operations further comprise:

receiving an additional input, and

in which it is determined whether the shock criterion is met also from the additional input.

11. The medium of claim 10 , in which

the WCD system further includes a memory, and

when the one or more programs are executed by the at least one processor, the operations further comprise:

storing in the memory the received additional input.

12. The medium of claim 10 , in which

the WCD system further includes an electrocardiogram (ECG) electrode configured to sense an ECG signal of the ambulatory patient and to render an ECG input responsive to the sensed ECG signal, and

the ECG input is the additional input.

13. The medium of claim 10 , in which

the WCD system further includes a magnetic field sensing module configured to sense a magnetic field of the earth and to render a magnetic field input responsive to the sensed magnetic field, and

the magnetic field input is the additional input.

14. The medium of claim 10 , in which

the WCD system further includes a pulse detector configured to sense a pulse of the ambulatory patient and to render a pulse detection input responsive to the sensed pulse, and

the pulse detection input is the additional input.

15. 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, an ambient air pressure sensor configured to sense an ambient air pressure and to render an ambient air pressure input responsive to the sensed ambient air pressure, and a processor, the method comprising:

receiving the rotational motion detection input;

receiving the ambient air pressure input determining from the received rotational motion detection input and from the received ambient air pressure input whether 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.

16. The method of claim 15 , in which

the WCD system further includes a memory, and

further comprising:

storing in the memory the received rotational motion detection input.

17. The method of claim 15 , further comprising:

receiving an additional input, and

in which it is determined whether the shock criterion is met also from the additional input.

18. The method of claim 17 , in which

the WCD system further includes a memory, and

further comprising:

storing in the memory the received additional input.

19. The method of claim 17 , in which

the WCD system further includes an electrocardiogram (ECG) electrode configured to sense an ECG signal of the ambulatory patient and to render an ECG input responsive to the sensed ECG signal, and

the ECG input is the additional input.

20. The method of claim 17 , in which

the WCD system further includes a magnetic field sensing module configured to sense a magnetic field of the earth and to render a magnetic field input responsive to the sensed magnetic field, and

the magnetic field input is the additional input.

21. The method of claim 17 , in which

the WCD system further includes a pulse detector configured to sense a pulse of the ambulatory patient and to render a pulse detection input responsive to the sensed pulse, and

the pulse detection input is the additional input.