Wearable device which diagnosis personal cardiac health condition by monitoring and analyzing heartbeat and the method thereof

• US 10,028,672 B2
• Filed: 02/04/2016
• Issued: 07/24/2018
• Est. Priority Date: 11/13/2015
• Status: Active Grant

• Current Assignee: Acme Portable Corp., Acme Portable Machines, Inc.
• Original Assignee: Acme Portable Corp., Acme Portable Machines, Inc.
• Inventors: Huang, Ching, Liu, Changyu, Kao, Tsair
• Primary Examiner(s): Flory, Christopher A
• Application Number:
  US15/015,967
• Publication Number:
  US 20170135593A1
• Time in Patent Office: 901 Days
• Field of Search: 600509, 600515
• CPC Class Codes: A61B 5/02405 Determining heart rate variability
• CPC Class Codes: A61B 5/02416 using photoplethysmograph signals, e.g. generated by infrared radiation A61B5/14552 takes precedence
• CPC Class Codes: A61B 5/02438 with portable devices, e.g. worn by the patient
• CPC Class Codes: A61B 5/11 Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb for measuring pulse A61B5/02 ;A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721
• CPC Class Codes: A61B 5/361 Detecting fibrillation
• CPC Class Codes: A61B 5/364 Detecting abnormal ECG interval, e.g. extrasystoles, ectopic heartbeats
• CPC Class Codes: A61B 5/721 using a separate sensor to detect motion or using motion information derived from signals other than the physiological signal to be measured
• CPC Class Codes: A61B 5/7285 for synchronising or triggering a physiological measurement or image acquisition with a physiological event or waveform, e.g. an ECG signal A61B6/5205, A61B6/541, A61B8/5207, A61B8/543 take precedence
• CPC Class Codes: A61B 5/7405 using sound
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence

Abstract

A wearable device which diagnoses personal cardiac health condition by monitoring and analyzing heartbeat includes a motion sensor detecting whether the user is in a motion state; a heart rhythm sensor detecting the user'"'"'s signal of heartbeat interval; a memory storing algorithm program and database for data process, comparison, and analysis; a microprocessor calculating, filtering and judging the signal of heartbeat interval; and a feedback module displaying or alarming a judgment result, wherein the wearable device continuously detects the user'"'"'s motion state and heartbeat condition, and detects heart rhythm when the user is not in the motion state to further judge the user'"'"'s cardiac health condition, such as atrial fibrillation.

Claims

1. A wearable device, comprising:

a motion sensor that detects whether a user is in a motion state;

a heart rhythm sensor that detects a heartbeat signal of the user;

a memory that stores an algorithm program, and further stores a database for data processing, comparison, and analysis;

a microprocessor that calculates, filters, and judges the heartbeat signal; and

a feedback module that displays or alarms a judgment result,

wherein the wearable device continuously detects the user'"'"'s motion state and heartbeat condition, and detects heart rhythm when the user is not in the motion state to judge whether there is an atrial fibrillation signal, and

wherein the microprocessor calculates, filters, and judges the heartbeat signal by;

comparing the heartbeat signal with a first normal filtration database to judge whether there is a non-atrial fibrillation signal;

excluding abnormal heartbeats from the heartbeat signal to produce an uncertain heartbeat signal;

counting heartbeats in the uncertain heartbeat signal;

comparing the uncertain heartbeat signal with a second normal filtration database to judge whether there is the atrial fibrillation signal;

if a number of heartbeat counts in the uncertain heartbeat signal is greater than a predetermined threshold, calculating a heartbeat variation degree of the uncertain heartbeat signal; and

comparing the heartbeat variation degree with a second abnormal filtration database to judge whether there is the atrial fibrillation signal.

2. The wearable device of claim 1, further comprising a wireless transmission module.

3. The wearable device of claim 1, wherein the feedback module is a display or an acoustic device.

4. The wearable device of claim 1, wherein the motion sensor is an acceleration sensor.

5. The wearable device of claim 4, wherein the motion sensor is a linear acceleration sensor.

6. The wearable device of claim 1, wherein the heart rhythm sensor detects heartbeat-correlated data by photoplethysmography.