Wearable monitor with arrhythmia burden evaluation

Patent metadata

Field	Value
Publication number	US-10098559-B2
Application number	US-201815966258-A
Country	US
Kind code	B2
Filing date	Apr 30, 2018
Priority date	Oct 31, 2014
Publication date	Oct 16, 2018
Grant date	Oct 16, 2018

Abstract

The present disclosure relates to a wearable monitor device and methods and systems for using such a device. In certain embodiments, the wearable monitor records cardiac data from a mammal and extracts particular features of interest. These features are then transmitted and used to provide health-related information about the mammal.

First claim

What is claimed is:

1. A wearable device for monitoring data, the device comprising:
a sensor and circuit configured to detect or derive cardiac signals from a mammal, the circuit configured to estimate a heartbeat time series from the cardiac signals;
a transmitter, the transmitter configured to transmit the heartbeat time series to a computing device, the computing device configured to determine an atrial fibrillation burden from the heartbeat time series; and
wherein the computing device is configured to provide a report, the report comprising the likelihood of the occurrence of past atrial fibrillation event.

2. The wearable device of claim 1 , wherein the atrial fibrillation burden comprises an amount of time spent in atrial fibrillation by the mammal per day.

3. The wearable device of claim 1 , wherein the atrial fibrillation burden comprises an amount of time spent in atrial fibrillation by the mammal per minute.

4. The wearable device of claim 1 , wherein the atrial fibrillation burden comprises an amount of time spent in atrial fibrillation by the mammal during a sleep period and during a wake period.

5. The wearable device of claim 1 , wherein the report comprises a histogram of atrial fibrillation burden.

6. The wearable device of claim 1 , further comprising an accelerometer, the accelerometer configured to measure movement of the mammal.

7. The wearable device of claim 6 , wherein the atrial fibrillation burden comprises an amount of time spent in atrial fibrillation during movement of the mammal.

8. The wearable device of claim 7 , wherein the movement of the mammal comprises a first degree of movement and a second degree of movement.

9. The wearable device of claim 1 , wherein the report comprises a 14 day monitoring period.

10. The wearable device of claim 1 , wherein the computing device infers a plurality of most probable cardiac rhythms by filtering the heartbeat time series according to a predetermined threshold.

11. The wearable device of claim 1 , wherein the sensor and circuit are contained within a chest strap.

12. The wearable device of claim 1 , wherein the sensor and circuit are contained within a watch, configured to be worn on a human wrist.

13. The wearable device of claim 1 , wherein the sensor and circuit are contained within a wearable fitness band.

14. A wearable device for monitoring data, the device comprising:
a sensor and circuit configured to detect or derive cardiac signals from a mammal, the circuit configured to estimate a heartbeat time series from the cardiac signals;
a transmitter, the transmitter configured to transmit the heartbeat time series to a computing device, the computing device configured to determine an arrhythmia burden from the heartbeat time series; and
wherein the computing device is configured to provide a report, the report comprising the likelihood of the occurrence of past cardiac arrhythmia.

15. The wearable device of claim 14 , wherein the arrhythmia comprises ventricular tachycardia.

16. The wearable device of claim 14 , wherein the arrhythmia comprises supraventricular tachycardia.

17. The wearable device of claim 14 , wherein the arrhythmia comprises ectopy.

18. The wearable device of claim 14 , wherein the arrhythmia comprises ventricular fibrillation.

19. The wearable device of claim 14 , wherein the arrhythmia comprises extended pauses.

20. The wearable device of claim 14 , wherein the report comprises a histogram of the arrhythmia burden.

Assignees

• Irhythm Tech Inc

Inventors

• Hughes Nicholas
• Day Mark
• Tamura Yuriko

Classifications

• A61B5/0022

  Monitoring a patient using a global network, e.g. telephone networks, internet · CPC title

• A61B2562/0219

  Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches · CPC title

• G16H50/30

  for calculating health indices; for individual health risk assessment · CPC title

• A61B5/02416

  using photoplethysmograph signals, e.g. generated by infrared radiation (A61B5/14552 takes precedence) · CPC title

• A61B2560/0209

  adapted for power saving · CPC title