Using a wearable medical device with multiple patients

• US 10,449,378 B2
• Filed: 01/10/2017
• Issued: 10/22/2019
• Est. Priority Date: 01/28/2016
• Status: Active Grant

• Current Assignee: Zoll Medical Corporation (Asahi Kasei Corporation)
• Original Assignee: Zoll Medical Corporation (Asahi Kasei Corporation)
• Inventors: Kaib, Thomas E., Clark, John
• Primary Examiner(s): Alter, Alyssa M
• Application Number:
  US15/402,420
• Publication Number:
  US 20170216613A1
• Time in Patent Office: 1,015 Days
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/349 Detecting specific parameters of the electrocardiograph cycle
• CPC Class Codes: A61B 5/4836 Diagnosis combined with treatment in closed-loop systems or methods A61B5/0036 takes precedence
• CPC Class Codes: A61B 5/6804 Garments; Clothes
• CPC Class Codes: A61B 5/6805 Vests
• CPC Class Codes: A61N 1/046 Specially adapted for shock therapy, e.g. defibrillation
• CPC Class Codes: A61N 1/0484 Garment electrodes worn by the patient
• CPC Class Codes: A61N 1/0492 Patch electrodes A61N1/0412, A61N1/0428 take precedence
• CPC Class Codes: A61N 1/3625 External stimulators
• CPC Class Codes: A61N 1/3925 Monitoring; Protecting
• CPC Class Codes: A61N 1/3987 characterised by the timing or triggering of the shock

Abstract

A wearable medical device comprising: a plurality of patient interface components each configured to interface with a patient; a first patient interface component of the plurality of patient interface components, the first patient interface component comprising a first sensing electrode for receiving one or more signals from a first patient, and a first therapy electrode for delivering a first treatment to the first patient; a second patient interface component of the plurality of patient interface components, the second patient interface component comprising a second sensing electrode for receiving one or more signals from a second patient; and one or more processors in communication with the plurality of patient interface components, the one or more processors configured to detect a first condition of the first patient based at least in part on the one or more signals from the first patient, cause the first treatment to be delivered to the first patient, wherein the first treatment is based at least in part on the detected first condition of the first patient, and detect a second condition of the second patient based at least in part on the one or more signals from the second patient.

Claims

1. A wearable medical device comprising:

a plurality of patient interface components each configured to be in physical contact with a body of each of a plurality of patients;

a first patient interface component of the plurality of patient interface components, the first patient interface component comprising

a plurality of first sensing electrodes for receiving one or more signals from a first patient of the plurality of patients, and

a plurality of first therapy electrodes for delivering a first defibrillating shock to the body of the first patient;

a second patient interface component of the plurality of patient interface components, the second patient interface component comprising

a plurality of second sensing electrodes for receiving one or more signals from a second patient of the plurality of patients; and

a medical device controller comprising

a plurality of ports disposed on the medical device controller, wherein the first patient interface component is configured to connect to a first one of the plurality of ports disposed on the medical device controller and the second patient interface component is configured to connect to a second one of the plurality of ports disposed on the medical device controller, and

one or more processors in communication with the plurality of patient interface components, the one or more processors configured to

detect a first arrhythmia condition of the first patient based at least in part on the one or more signals from the first patient,

cause the first defibrillating shock to be delivered to the first patient, wherein the first defibrillating shock is based at least in part on the detected first arrhythmia condition of the first patient, and

detect a second arrhythmia condition of the second patient based at least in part on the one or more signals from the second patient.

2. The wearable medical device of claim 1, comprising a plurality of garments, each garment for affixing one of the plurality of patient interface components to the body of a corresponding patient.

3. The wearable medical device of claim 1, comprising an electrode patch that includes at least one of the plurality of first sensing electrodes and at least one of the plurality of first therapy electrodes.

4. The wearable medical device of claim 1, wherein at least one of the plurality of first sensing electrodes, the plurality of second sensing electrodes, and the plurality of first therapy electrodes is configured to be disposable.

5. The wearable medical device of claim 1, comprising a garment for affixing the first patient interface component to the body of the first patient, wherein the garment includes a compartment configured for storing one or both of the plurality of second sensing electrodes and a plurality of second therapy electrodes.

6. The wearable medical device of claim 1, wherein the second patient interface component comprises a plurality of second therapy electrodes for delivering a second defibrillating shock to the second patient.

7. The wearable medical device of claim 6, comprising a user interface configured for

receiving input and providing information related to one or both of the first arrhythmia condition and the first defibrillating shock, and

receiving input and providing information related to one or both of the second arrhythmia condition and the second defibrillating shock.

8. The wearable medical device of claim 7, wherein the user interface is configured for providing the information related to one or both of the second arrhythmia condition and the second defibrillating shock when the second patient interface component is in communication with the one or more processors.

9. The wearable medical device of claim 6, wherein each of the first and second patient interface components comprises a patient interface processor.

10. The wearable medical device of claim 9, wherein each of the first and second patient interface components includes one or more capacitors for storing electrical energy for use by the plurality of first and second therapy electrodes for delivering the first and second defibrillating shocks to the first and second patients.

11. The wearable medical device of claim 10, wherein first and second patient interface processors are each configured to provide an alert prior to delivering the first and second defibrillating shocks.

12. The wearable medical device of claim 11, wherein the alert is a haptic alert.

13. A wearable medical device comprising:

a plurality of patient interface components each configured to be in physical contact with a body of each of a plurality of patients;

a first patient interface component of the plurality of patient interface components, the first patient interface component comprising

a plurality of first sensing electrodes for receiving one or more signals from a first patient of the plurality of patients, and

a plurality of first therapy electrodes for delivering a first defibrillating shock to the body of the first patient;

a second patient interface component of the plurality of patient interface components, the second patient interface component comprising

a plurality of second sensing electrodes for receiving one or more signals from a second patient of the plurality of patients; and

a medical device controller comprising

a port for connecting the plurality of patient interface components to the medical device controller, wherein the first patient interface component is configured to connect to the port, and the second patient interface component is configured to connect to the first patient interface component in series, and

one or more processors in communication with the plurality of patient interface components, the one or more processors configured to

detect a first condition of the first patient based at least in part on the one or more signals from the first patient,

cause the first defibrillating shock to be delivered to the first patient, wherein the first defibrillating shock is based at least in part on the detected first arrhythmia condition of the first patient, and

detect a second arrhythmia condition of the second patient based at least in part on the one or more signals from the second patient.

14. The wearable medical device of claim 13, wherein the port comprises a CAN bus.

15. The wearable medical device of claim 13, further comprising a distribution node configured to connect to the port of the medical device controller, the distribution node comprising a patient interface processor.

16. The wearable medical device of claim 13, further comprising a patient interface processor configured to process the one or more signals received by the plurality of first and second sensing electrodes.

17. The wearable medical device of claim 13, further comprising a patient interface processor configured to cause a conductive gel to be released by the plurality of first therapy electrodes prior to the first defibrillating shock being delivered.

18. The wearable medical device of claim 13, further comprising a patient interface processor configured to provide an alert to the first patient prior to the first defibrillating shock being delivered.

19. The wearable medical device of claim 15, wherein each of the plurality of patient interface components is configured to connect to the distribution node in series.

20. The wearable medical device of claim 13, further comprising a plurality of patient interface processors, each one of the plurality of patient interface processors being associated with a corresponding one of the plurality of patient interface components and configured to facilitate communication between the plurality of patient interface components and the one or more processors of the medical device controller.

21. The wearable medical device of claim 20, wherein the plurality of patient interface components and the one or more processors communicate using a controller area network (CAN) protocol.