System and method for adapting alarms in a wearable medical device

• US 9,659,475 B2
• Filed: 05/19/2016
• Issued: 05/23/2017
• Est. Priority Date: 03/25/2011
• Status: Active Grant

• Current Assignee: Zoll Medical Corporation (Asahi Kasei Corporation)
• Original Assignee: Zoll Medical Corporation (Asahi Kasei Corporation)
• Inventors: Kaib, Thomas E., Volpe, Shane S., Clark, John G.
• Primary Examiner(s): Lu, Shirley
• Application Number:
  US15/159,557
• Publication Number:
  US 20160267765A1
• Time in Patent Office: 369 Days
• CPC Class Codes: A61B 1/00 Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes examination of body cavities or body tracts using ultrasonic, sonic or infrasonic waves A61B8/12; endoscopic instruments for taking cell samples or for biopsy A61B10/04; for surgical purposes A61B17/00; endoscopic surgical cutting instruments A61B17/32; surgical instruments using a laser beam being directed along or through a flexible conduit A61B18/22; Illuminating arrangements therefor for the eyes A61B3/00
• CPC Class Codes: A61B 5/746 Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms alarms per se G08B
• CPC Class Codes: A61M 1/00 Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems catheters A61M25/00; tube connectors, tube couplings, valves or branch units specially adapted for medical use A61M39/00; devices for taking samples of blood A61B5/15; filters implantable into blood vessels A61F2/01
• CPC Class Codes: A61N 1/08 Arrangements or circuits for monitoring, protecting, controlling or indicating for external stimulators A61N1/3603; for implantable neurostimulators A61N1/36128; for heart stimulators A61N1/37; for defibrillators A61N1/3925
• CPC Class Codes: A61N 1/3925 Monitoring; Protecting
• CPC Class Codes: G08B 21/0453 worn on the body to detect health condition by physiological monitoring, e.g. electrocardiogram, temperature, breathing detecting, measuring or recording for diagnostic purposes A61B5/00
• CPC Class Codes: G08B 21/18 Status alarms G08B21/02 takes precedence
• CPC Class Codes: G08B 21/24 Reminder alarms, e.g. anti-loss alarms
• CPC Class Codes: G16H 20/10 relating to drugs or medications, e.g. for ensuring correct administration to patients
• CPC Class Codes: G16H 40/20 for the management or administration of healthcare resources or facilities, e.g. managing hospital staff or surgery rooms
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16H 40/67 for remote operation
• CPC Class Codes: G16H 50/30 for calculating health indices; for individual health risk assessment
• CPC Class Codes: H04W 4/00 Services specially adapted for wireless communication networks; Facilities therefor

Abstract

According to another example, a wearable medical device controller is provided. The device controller includes a memory and a processor coupled to the memory. The processor is configured to determine a correlation between a phenomenon identifiable by the wearable medical device controller and at least one response pattern associated with a patient and store, responsive to detecting the correlation, an adaptation path to address the at least one response pattern, the adaptation path specifying an adaptation of at least one characteristic of an alarm. The at least one response pattern may include a plurality of response patterns and the adaptation path may reflect adaptations made to address at least some of the plurality of response patterns.

Claims

1. An ambulatory medical device comprising:

at least one sensor configured to acquire physiologic data from a patient, the physiologic data comprising cardiopulmonary data;

a memory for storing at least a portion of the physiologic data; and

at least one processor coupled to the memory and configured to

detect a physiologic abnormality in the patient,

issue an alarm in response to detecting the physiologic abnormality,

monitor for a response to the alarm,

detect an indication that is correlated with a delayed response time by the patient based at least in part on the physiologic data,

adapt the alarm to address the delayed response time, and

issue the adapted alarm.

2. The ambulatory medical device of claim 1, wherein the ambulatory medical device is wearable.

3. The ambulatory medical device of claim 1, wherein the cardiopulmonary data comprises at least one of heart rate and respiration rate.

4. The ambulatory medical device of claim 1, wherein the at least one processor is further configured to detect the indication based on data descriptive of at least one of patient body position, patient motion, patient test responses, and patient speech.

5. The ambulatory medical device of claim 1, wherein the at least one processor is configured to adapt the alarm to an extended response time.

6. The ambulatory medical device of claim 1, wherein the at least one processor is configured to adapt the alarm to a different interface.

7. The ambulatory medical device of claim 1, wherein the at least one processor is configured to adapt the alarm to delay issuance of the alarm until the indication is no longer detected.

8. The ambulatory medical device of claim 1, wherein the at least one processor is configured to determine that the indication is correlated with the delayed response time by processing a history of the patient'"'"'s responses to alarms.

9. The ambulatory medical device of claim 1, wherein the indication indicates the patient is asleep.

10. The ambulatory medical device of claim 9, wherein the at least one processor is configured to adapt the alarm to a multi-stage alarm comprising a first alarm having a first intensity and a second alarm having a second intensity different from the first intensity.

11. The ambulatory medical device of claim 10, wherein the first intensity corresponds to at least one of a first amplitude and a first frequency that is different from at least one of a second amplitude and a second frequency that corresponds the second intensity.

12. The ambulatory medical device of claim 9, wherein the at least one processor is configured to adapt the alarm to a base station.

13. The ambulatory medical device of claim 1, wherein the indication indicates the patient is impaired.

14. The ambulatory medical device of claim 13, wherein the alarm is directed to a recipient other than the patient.

15. The ambulatory medical device of claim 1, wherein the indication indicates the patient is under stress.

16. The ambulatory medical device of claim 15, wherein the alarm has at least one of a reduced duration and a reduced intensity.

17. The ambulatory medical device of claim 1, wherein the indication indicates the patient was failed to take medication.

18. The ambulatory medical device of claim 17, wherein the alarm comprises a reminder to take the medication.

19. An ambulatory medical device comprising:

at least one sensor configured to acquire physiologic data from a patient, the physiologic data comprising cardiopulmonary data;

at least one sensor configured to acquire data descriptive of at least one of patient body position, patient motion, patient test responses, and patient speech;

a memory for storing at least a portion of the physiologic data and the data descriptive of at least one of patient body position, patient motion, patient test responses, and patient speech; and

at least one processor coupled to the memory and configured to process the physiologic data and the data descriptive of at least one of patient body position, patient motion, patient test responses, and patient speech to

detect a physiologic abnormality in the patient,

issue an alarm in response to detecting the physiologic abnormality,

monitor for a response to the alarm,

detect an indication that is correlated with a delayed response time by the patient,

adapt the alarm to address the delayed response time, and

issue the adapted alarm.

20. A method of adapting alarms issued from an ambulatory medical device comprising at least one sensor, a memory, and at least one processor coupled to the memory, the method comprising:

acquiring physiologic data from a patient via the at least one sensor, the physiologic data comprising cardiopulmonary data;

storing at least a portion of the physiologic data in the memory;

detecting a physiologic abnormality in the patient;

issuing an alarm in response to detecting the physiologic abnormality;

monitoring for a response to the alarm;

detecting an indication that is correlated with a delayed response time by the patient based at least in part on the physiologic data;

adapting the alarm to address the delayed response time based on detecting the indication that is correlated with the delayed response time by the patient; and

issuing the adapted alarm.

21. The method of claim 20, wherein acquiring the physiologic data comprises acquiring at least one of heart rate and respiration rate.

22. The method of claim 20, wherein detecting the indication comprises detecting the indication based on data descriptive of at least one of patient body position, patient motion, patient test responses, and patient speech.