Closed Loop Respiratory Monitoring System For Sleep Quality Characterization

• US 20190314192A1
• Filed: 10/31/2017
• Published: 10/17/2019
• Est. Priority Date: 10/31/2016
• Status: Abandoned Application

• Current Assignee: Medidata Solutions Incorporated (Dassault Systemes SA)
• Original Assignee: MC10, Inc.
• Inventors: Raj, Milan, McGinnis, Ryan
• Application Number:
  US16/345,907
• Publication Number:
  US 20190314192A1
• Time in Patent Office: Days
• CPC Class Codes: A61B 2562/0219 Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/02416 using photoplethysmograph signals, e.g. generated by infrared radiation A61B5/14552 takes precedence
• CPC Class Codes: A61B 5/0245 by using sensing means generating electric signals, i.e. ECG signals
• CPC Class Codes: A61B 5/0816 Measuring devices for examining respiratory frequency measuring frequency of electric signals G01R23/00
• CPC Class Codes: A61B 5/1102 Ballistocardiography
• CPC Class Codes: A61B 5/113 occurring during breathing
• CPC Class Codes: A61B 5/4818 Sleep apnoea
• CPC Class Codes: A61B 5/4836 Diagnosis combined with treatment in closed-loop systems or methods A61B5/0036 takes precedence
• CPC Class Codes: A61B 5/6822 Neck
• CPC Class Codes: A61B 5/683 Means for maintaining contact with the body A61B5/6802 takes precedence
• 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: A61B 7/003 Detecting lung or respiration noise
• CPC Class Codes: A61F 5/56 Devices for preventing snoring by influencing the respiratory system by gas treatment A61M16/00

Abstract

A system and method for sensing sleep abnormality in a user is disclosed. The system can include an accelerometer sensor in contact with the skin of the user to measure the deflection of the body during respiration and generate a respiration waveform. A controller receives the respiration waveform from the accelerometer sensor to determine a sleep abnormality measurement as a function of the respiration waveform.

Claims

1. A sensor system for sensing a sleep abnormality in a user, the system comprising:

an accelerometer sensor in contact with the skin of the user to measure a deflection of the body during respiration and generate a respiration waveform;

a controller receives the respiration waveform from the accelerometer sensor to determine a sleep abnormality measurement as a function of the respiration waveform.

2. The sensor system of claim 1, further comprising a heart beat sensor in contact with the skin of a user to measure a heart beat waveform, wherein the controller receives the heart beat waveform from the heart beat sensor and determines the sleep abnormality measurement from the heart beat waveform.

3. The sensor system of claim 2, wherein the heart beat sensor is one of an ECG sensor, a SCG sensor or a PPG sensor.

4. The sensor system of claim 1, further comprising an external device in communication with the controller, wherein the controller is operative to control the external device to induce a change in the position of the user.

5. The sensor system of claim 4, wherein the external device is an alarm.

6. The sensor system of claim 4, wherein the external device is a mattress including an actuator to induce a position change of the user.

7. The sensor system of claim 2, further comprising a memory for storing the heart beat waveform and the accelerometer waveform.

8. The sensor system of claim 2, further comprising a transceiver to transmit the heart beat waveform and the accelerometer waveform.

9. The sensor system of claim 8, further comprising a user device in communication with the transceiver to receive the heart beat waveform and the accelerometer waveform, the user device operative to determine the sleep abnormality measurement.

10. The sensor system of claim 1, wherein the accelerometer sensor is on an attachable sensor near the carotid artery.

11. A method of detecting a sleep abnormality in a user comprising:

attaching an accelerometer sensor in contact with the skin of the user to measure a deflection of the body during respiration;

generating a respiration waveform from the accelerometer sensor;

receiving a respiration waveform from the accelerometer sensor by a controller; and

determining a sleep abnormality measurement as a function of the respiration waveform via the controller.

12. The method of claim 11, further comprising:

attaching a heart beat sensor in contact with the skin of a user to measure a heart beat waveform;

generating a heart beat waveform; and

wherein the controller receives the heart beat waveform from the heart beat sensor and determines the sleep abnormality measurement from the heart beat waveform.

13. The method of claim 12, wherein the heart beat sensor is one of an ECG sensor, a SCG sensor or a PPG sensor.

14. The method of claim 11, further comprising providing an external device in communication with the controller, wherein the controller is operative to control the external device to induce a change in the position of the user.

15. The method of claim 14, wherein the external device is an alarm.

16. The method of claim 14, wherein the external device is a mattress including an actuator to induce a position change of the user.

17. The method of claim 11, further comprising storing the respiration waveform in a memory.

18. The method of claim 11, further comprising transmitting the respiration waveform.

19. The method of claim 18, further comprising:

receiving the transmitted respiration waveform via a user device; and

determining the sleep abnormality measurement via the user device.

20. The method of claim 12, wherein the heart beat sensor is on an attachable sensor near the heart;

and the accelerometer sensor is on another attachable sensor near the carotid artery.