SLEEP EVALUATION DEVICE AND SLEEP EVALUATION METHOD

• US 20130324889A1
• Filed: 12/20/2011
• Published: 12/05/2013
• Est. Priority Date: 03/14/2011
• Status: Active Grant

• Current Assignee: Omron Healthcare Company Limited (Omron Corporation)
• Original Assignee: Omron Healthcare Company Limited (Omron Corporation)
• Inventors: Kanemitsu, Yoko, Emori, Yasuko, Tsutsumi, Masakazu, Tseng, Feilang, Ito, Toshiro, Togo, Hidetaka
• Granted Patent: US 9,072,491 B2
• Time in Patent Office: Days
• US Class Current: 600/595
• 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 5/4806 Sleep evaluation A61B5/4821 takes precedence; devices for inducing sleep A61M21/02
• CPC Class Codes: A61B 5/4812 Detecting sleep stages or cycles
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence

Abstract

With an evaluation device, a sleep level of a person being measured is discriminated based on a signal input from a body motion sensor. With the evaluation device, when a go-to-bed button is operated at time T3, time T3 is stored as the go-to-bed time. When a good-night button is operated at time T4, discrimination of sleep level is started. Thereafter, when the good-night button again is operated at time T5, the discrimination of sleep level ends.

Claims

1. A sleep evaluation device comprising:

a body motion detection device that detects body motion of a person being measured on a bed;

a discrimination device that discriminates a sleeping state of the person being measured, based on a detection result of the body motion detection device; and

an input device that inputs information on the person being measured before going to sleep,

wherein a sleeping state is discriminated based on the pre-sleep information and the detection result of the body motion detection device,

the pre-sleep information includes;

information specifying a first timing at which the person being measured is positioned on the bed; and

information specifying a second timing at which the person being measured intends to end a state before sleeping,

the sleep evaluation device further comprising;

an arithmetic operation device that calculates a first duration which is a duration from the first timing to the second timing, and specifies the first timing based on the detection result of the body motion detection device,

wherein the discrimination device further discriminates a sleep level of the sleeping state, and

the arithmetic operation device further computes a second duration which is a duration from the second timing to when the sleep level reaches a specific level,

the sleep evaluation device further comprising;

a display control device that displays the first duration and the second duration on a display device.

2. The sleep evaluation device according to claim 1,

wherein the body motion detection device constantly detects the body motion of the person being measured on the bed,

the pre-sleep information includes information specifying a timing at which the person being measured intends to end a state before sleeping, and

the discrimination device starts the discrimination from said specified timing.

3. The sleep evaluation device according to claim 1, further comprising:

a body motion information storage device that stores information on the body motion detected by the body motion detection device,

wherein a sleeping state is discriminated based on the body motion information stored in the body motion information storage device,

the input device further receives information specifying a delete target period for which stored data of the body motion information is to be deleted from the body motion information storage device, and

the body motion information storage device deletes stored data of the information specifying the body motion corresponding to the delete target period.

4. The sleep evaluation device according to claim 1, further comprising period information storage device that stores information specifying a period during which the discrimination is performed by the discrimination device,

wherein the discrimination device executes the discrimination in the period specified by the information stored in the period information storage device.

5. The sleep evaluation device according to claim 1, further comprising:

a body motion information storage device that stores information on the body motion detected by the body motion detection device,

wherein the input means device further receives information that instructs the body motion detection device to suspend detection,

the body motion detection device suspends, in response to the information that instructs the suspension of the detection being input to the input device, the detection of body motion, and

the body motion information storage device deletes stored data of the body motion information stored before the information is input, in response to the information that instructs the suspension of the detection being input to the input device.

9. The sleep evaluation device according to claim 1, wherein the input device further receives information that specifies a type of activity done by the person being measured in a period from the first timing to the second timing, and

the display control device displays on the display device said type of activity along with the first duration and the second duration.

11. The sleep evaluation device according to claim 2, further comprising:

a body motion information storage device that stores information on the body motion detected by the body motion detection device,

wherein a sleeping state is discriminated based on the body motion information stored in the body motion information storage device,

the input device further receives information specifying a delete target period for which stored data of the body motion information is to be deleted from the body motion information storage device, and

the body motion information storage device deletes stored data of the information specifying the body motion corresponding to the delete target period.

6-8. -8. (canceled)

10. A sleep evaluation method that is to be executed in a sleep evaluation device including body motion detection device that detects body motion of a person being measured on a bed, the sleep evaluation method comprising:

a step of the body motion detection device detecting body motion of a person being measured on a bed;

a step of receiving information on the person being measured before going to sleep; and

a step of discriminating a sleeping state of the person being measured based on the pre-sleep information and the result of body motion detected by the body motion detection device,

wherein the pre-sleep information includes;

information specifying a first timing at which the person being measured is positioned on the bed; and

information specifying a second timing at which the person being measured intends to end a state before sleeping,

the sleep evaluation method further comprising;

an arithmetic operation step of computing a first duration which is a duration from the first timing to the second timing, and specifies the first timing based on the detection result of the body motion detection device,

wherein the discrimination step includes a step of further discriminating a sleep level of the sleeping state, and

the arithmetic operation step includes a step of further computing a second duration which is a duration from the second timing to when the sleep level reaches a specific level,

the sleep evaluation method further comprising;

a step of displaying the first duration and the second duration on a display device.