APNEA DETECTING APPARATUS

• US 20180103895A1
• Filed: 03/22/2016
• Published: 04/19/2018
• Est. Priority Date: 03/22/2016
• Status: Abandoned Application

• Current Assignee: E3 Co., Ltd.
• Original Assignee: E3 Company Limited 32F
• Inventors: YAO, Bingwei
• Application Number:
  US15/554,900
• Publication Number:
  US 20180103895A1
• Time in Patent Office: Days
• CPC Class Codes: A61B 2562/0219 Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
• CPC Class Codes: A61B 5/08 Detecting, measuring or recording devices for evaluating the respiratory organs A61B5/0205 takes precedence
• CPC Class Codes: A61B 5/0803 Recording apparatus specially adapted therefor
• CPC Class Codes: A61B 5/0826 Detecting or evaluating apnoea events A61B5/4818 takes precedence
• CPC Class Codes: A61B 5/1121 Determining geometric values, e.g. centre of rotation or angular range of movement
• CPC Class Codes: A61B 5/113 occurring during breathing
• CPC Class Codes: A61B 5/4818 Sleep apnoea
• CPC Class Codes: A61B 5/6823 Trunk, e.g., chest, back, abdomen, hip
• CPC Class Codes: A61B 5/6831 Straps, bands or harnesses
• CPC Class Codes: A61B 5/7246 using correlation, e.g. template matching or determination of similarity
• CPC Class Codes: A61B 5/7282 Event detection, e.g. detecting unique waveforms indicative of a medical condition A61B5/4094, A61B5/4818, A61B5/349, A61B5/0823 take 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

Abstract

There is provided a detecting unit 13 for detecting an apnea condition of a user based on correlation of acceleration information to be measured by an acceleration sensor 11 for detecting a motion of a body as an acceleration and angular velocity information to be measured by an angular velocity sensor 12 for detecting the motion of the body as an angular velocity. By deciding that the apnea condition is brought only when both an acceleration to be measured by the acceleration sensor 11 and an angular velocity to be measured by the angular velocity sensor 12 indicate the apnea condition, it is possible to detect apnea during sleeping more accurately.

Claims

1. An apnea detecting apparatus for detecting an apnea condition in attachment to a body of a user for a sleeping period, the apparatus comprising:

an acceleration sensor for detecting a motion of the body as an acceleration;

an angular velocity sensor for detecting the motion of the body as an angular velocity; and

a detecting unit for detecting an apnea condition of the user based on correlation of acceleration information to be measured by the acceleration sensor and angular velocity information to be measured by the angular velocity sensor,

wherein the detecting unit detecting, as an apnea condition, a period in which a value of the acceleration is equal to or smaller than a threshold and a value of the angular velocity is equal to or smaller than a threshold, and both the acceleration and the angular velocity indicate the apnea condition.

3. The apnea detecting apparatus according to claim 1, wherein an acceleration in a body thickness direction of the user is detected by the acceleration sensor and an angular velocity with a body width direction of the user set to be a rotation axis is detected by the angular velocity sensor.

4. The apnea detecting apparatus according to claim 1 further comprising an alarm output unit for outputting an alarm when the apnea condition is detected by the detecting unit.

2. (canceled)