JP2009100795A - Pillow cover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pillow cover capable of measuring biological information of a subject by using a pillow which the subject usually uses. <P>SOLUTION: The pillow cover 1A has a sensor 10 for measuring the biological information of the subject H attached to a pillow cover body 2. The sensor 10 is preferably attached to the pillow cover body 2 in such a state as positioned and secured to the pillow cover body 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a pillow cover having a function of measuring biological information of a subject, a pillow with a pillow cover, and a biological information measuring device.

  In medical facilities (eg, hospitals), nursing homes, general households, etc., in order to grasp the health status of subjects such as sick people, healthy people, infants, etc., measurement of biological information while the subject is sleeping is performed. .

Several devices that non-invasively measure biological information are known as devices used for the measurement (see, for example, Patent Documents 1 to 5). As an example, Japanese Patent Application Laid-Open No. 2004-113329 (Patent Document 1) discloses an apparatus in which a sensor for detecting a signal of a living body of a subject is arranged inside a pillow.
JP 2004-113329 A (paragraphs [0026] to [0031], FIG. 3) JP 2004-351110 A JP 2007-61587 A Japanese Patent Laid-Open No. 2005-205033 JP 2002-119596 A

  Thus, in the device disclosed in the above publication, a dedicated pillow in which a sensor is arranged in advance is used as a pillow, that is, the subject's favorite pillow cannot be used. There is a risk that it will be in a different state than usual, or the subject may not be able to sleep.

  The present invention has been made in view of the above-described technical background, and the purpose thereof is a pillow cover capable of measuring biological information of a subject using, for example, a favorite pillow of the subject as a pillow, and a pillow cover provided with the pillow cover. An object of the present invention is to provide an attached pillow and a biological information measuring device including the pillow cover.

  The present invention provides the following means.

  [1] A pillow cover, wherein a sensor for measuring biological information of a subject is attached to the pillow cover body.

  [2] The pillow cover according to [1], wherein the sensor is attached to the pillow cover body in a state where the position of the sensor is fixed with respect to the pillow cover body.

  [3] The pillow cover according to item 1 or 2, wherein the sensor is detachably attached to the pillow cover body.

  [4] The pillow cover according to any one of the preceding items 1 to 3, wherein the sensor is attached to a portion of the pillow cover main body that is disposed below the pillow.

[5] The sensor is a belt-shaped strain generating plate disposed in a state extending in the left-right direction of the head of the subject, and a strain that is attached to the strain generating plate and detects strain of the strain generating plate Detecting means, and
The pillow cover according to any one of the preceding items 1 to 4, wherein the strain generating plate is accommodated in a strain generating plate accommodation pocket provided in the pillow cover main body so as to be removable.

[6] The sensor includes wireless communication means for transmitting an output signal from the sensor as a wireless signal,
The pillow cover according to the preceding item 5, wherein an operating power source of the sensor is attached to the strain generating plate.

  [7] The pillow cover as described in 5 or 6 above, wherein a sealing member that seals the opening is provided at the opening of the pocket.

[8] A pair of hook-and-loop fasteners that can be engaged with each other that are detachably joined to both ends of the pillow cover body that are overlapped with each other when the pillow is covered with the pillow cover body. One and the other are provided,
An opening edge of a pocket piece that forms the pocket between the pillow cover body and the pillow cover body is disposed above the engagement surface of one of the surface fasteners.
When the two surface fasteners are engaged with each other, the opening edge of the pocket piece is sandwiched between the two surface fasteners, whereby the opening of the pocket is sealed. The pillow cover according to any one of 5 to 7 above.

  [9] A pillow with a pillow cover covered with the pillow cover according to any one of 1 to 8 above.

[10] A pillow with a pillow cover covered with the pillow cover according to any one of 1 to 8 above,
An informing means for informing the subject's biological information based on an output signal from the pillow cover sensor, a biological information measuring device.

  The present invention has the following effects.

  In the pillow cover according to the invention of [1], since the sensor for measuring the biological information of the subject is attached to the pillow cover body, for example, by covering the subject's favorite pillow with the pillow cover, the sleep state of the subject Can be in the same state as usual. Thereby, a test subject can sleep comfortably and a test subject's normal biological information can be measured.

  In the invention of [2], since the sensor is attached to the pillow cover body in a fixed state, it prevents a problem that the position of the sensor is shifted with respect to the pillow cover body due to body movement such as turning of the subject during sleep. it can.

  In the invention of [3], since the sensor is detachably attached to the pillow cover body, the sensor is removed from the pillow cover body when the sensor is replaced due to a failure of the sensor or when the pillow cover is washed. Can do.

  In the invention of [4], since the sensor is attached to a part of the pillow cover body that is disposed on the lower side of the pillow, the head is kept in a state in which the subject feels a sense of discomfort due to the presence of the sensor on the head as much as possible. Part can be received with a pillow.

  In the invention of [5], since the sensor includes the strain plate and the strain detection means, the biological information of the subject can be reliably measured. Further, since the strain plate is accommodated in the strain plate housing pocket provided in the pillow cover body so that the strain plate can be taken out, the sensor can be easily attached to the pillow cover body, and the sensor can be mounted on the pillow cover. It is possible to prevent inadvertent failures from the main body.

  In the invention of [6], the sensor can be made cordless.

  In the invention of [7], it is possible to reliably prevent a problem that the strain generating plate unexpectedly jumps out of the pocket and falls off the pillow cover body.

  In the invention of [8], when the pillow is covered with the pillow cover main body, a pair of mutually engageable surfaces that join the both ends of the pillow cover main body so as to be separated from each other in a superposed state. One and the other of the fasteners are provided respectively. Therefore, by engaging both surface fasteners with each other, the pillow can be held in a state of being covered with the pillow cover.

  Furthermore, when engaging both surface fasteners with each other, the opening edge of the pocket piece is sandwiched between both surface fasteners, so that the opening of the pocket is sealed, There is no need to separately attach a sealing member for sealing the opening of the pocket to the pillow cover body. Thereby, the number of parts of the pillow cover can be reduced, and the manufacturing cost of the pillow cover can be reduced.

  In the invention [9], the same effects as the effects of the inventions [1] to [8] can be obtained.

  In the invention of [10], the subject's biological information can be reliably notified to the notification subject.

  Next, several embodiments of the present invention will be described below with reference to the drawings.

<First Embodiment>
1-4 is a figure explaining the pillow cover and biological information measuring device which concern on 1st Embodiment of this invention.

  In FIG. 1, (20) is the biological information measuring device of the first embodiment, and (30) is a bed as a bed on which the subject (H) goes to bed.

  The bed (30) has a quadrangular shape (a rectangular shape in detail) in plan view, and an elastic mat (31) such as a mattress or mattress is laid on the bed (30).

  The measurement device (20) of the first embodiment is for measuring biological information mainly during sleep of the subject (H), such as a medical facility (eg, a hospital), an elderly facility, a care facility, a nursing facility, a lodging facility. It is used in facilities (eg, hotels) and general households. The biological information measured by the measuring device (20) includes respiratory information, pulse information (heart rate information), body movement information, and the like. Examples of the subject (H) include healthy people, sick people, elderly people, infants, and guests.

  This measuring device (20) includes a pillow cover (1A) according to the first embodiment of the present invention, a pillow with a pillow cover (9) covered by the pillow cover (1A), and a notification means (18). I have.

  As shown in FIGS. 2 and 3, the pillow cover (1A) includes a pillow cover body (2) and a sensor (10) that measures biological information of the subject (H).

  As shown in FIG. 3, the pillow cover main body (2) has a band shape or a rectangular shape in its unfolded state, and is made of a flexible sheet material. Specifically, the pillow cover body (2) is made of, for example, polyester. However, in the present invention, the material of the pillow cover main body (2) is not limited to polyester, and can be variously changed. In addition, for example, cotton or polyester and cotton may be used. May be a mixed material.

  The magnitude | size of the pillow cover main body (2) is set to the magnitude | size which can cover the pillow (9) over the perimeter of the width direction. In a state where the pillow (9) is covered with the pillow cover main body (2), the length of the pillow cover main body (2) is, for example, 300 to 800 mm, and the width of the pillow cover main body (2) is, for example, 200 to 600 mm. The thickness of the pillow cover main body (2) is, for example, 0.5 to 2 mm. However, in the present invention, the length, width, and thickness of the pillow cover main body (2) are not limited to the above ranges, but are set according to the size of the pillow (9). is there.

  The detailed configuration of the pillow cover (1A) will be described later.

  The pillow (9) is, for example, a favorite of the subject (H) and is generally commercially available. The material of the pillow (9) is urethane foam (eg, low-resilience urethane foam), polyethylene foam, buckwheat husk, sponge, cotton, feathers and the like.

  The length of the pillow (9) is, for example, 300 to 800 mm, the width of the pillow (9) is, for example, 200 to 600 mm, and the height of the pillow (9) is 50 to 200 mm. However, in the present invention, the length, width, and height of the pillow (9) are not limited to the above ranges.

  The sensor (10) includes a strain generating plate (11), strain detecting means (12) for detecting strain of the strain generating plate (11), and a control board (13).

  The strain generating plate (11) is in the form of an elastically bendable strip, is formed from a metal plate, and more specifically, is formed from an aluminum (including an alloy thereof) plate. Made of extruded material or rolled material. By forming the strain generating plate (11) from an aluminum plate, the weight of the pillow cover (1A) can be reduced.

  However, in the present invention, the strain-generating plate (11) is not limited to being made of aluminum, and in addition, for example, iron, steel (including stainless steel), magnesium alloy, copper (including its alloy) It may be made of plastic or plastic (eg, fiber reinforced plastic).

  The strain plate (11) is arranged in a state extending in the left-right direction of the head (that is, the length direction of the pillow (9)) below the head of the subject (H). In response to the weight (load) of the head of H), distortion occurs with the biological activity of the subject (H).

  In FIG. 3, (L) indicates the length of the strain generating plate (11), and (W) indicates the width of the strain generating plate (11).

  The upper and lower surfaces of the strain generating plate (11) are formed flat. Further, the thickness of the strain generating plate (11) is set to be constant in the length direction and the width direction of the strain generating plate (11). In addition, the width (W) of the strain generating plate (11) is set to be constant in the length direction of the strain generating plate (11).

  However, in the present invention, the thickness of the strain generating plate (11) is not limited to be set to be constant in the length direction and the width direction of the strain generating plate (11). The thickness of the intermediate portion in the length direction of the strain generating plate (11) may be set thinner than the thickness of each end portion in the length direction of the strain generating plate (11). In the present invention, the width (W) of the strain generating plate (11) is not limited to be set to be constant in the length direction of the strain generating plate (11). The width of the intermediate portion in the length direction of the strain plate (11) may be set shorter than the width of each end portion in the length direction of the strain generating plate (11). Further, in the present invention, the cross-sectional secondary moment at the intermediate portion in the length direction of the strain-generating plate (11) is set to be equal to the cross-sectional secondary moment at each end portion in the length direction of the strain-generating plate (11), for example. Alternatively, it may be set smaller than the cross-sectional second moment at each end in the length direction of the strain generating plate (11).

  The length (L) of the strain generating plate (11) is set in the range of 300 to 800 mm, for example. The width (W) of the strain generating plate (11) is set in the range of 50 to 200 mm, for example. The thickness of the strain generating plate (11) is set in the range of 0.5 to 3 mm, for example. However, in the present invention, the length (L), the width (W), and the thickness of the strain generating plate (11) are not limited to the above ranges.

The bending stiffness of the strain generating plate (11) is preferably set in a range of 3 × 10 ⁴ to 10 × 10 ⁷ Nmm ² , for example. By setting the bending stiffness of the strain generating plate (11) within the above range, the strain generating plate (11) is surely distorted or the strain is surely changed with the biological activity of the subject (H). To be. However, in the present invention, the bending stiffness of the strain generating plate (11) is not limited to the above range.

  Note that the biological activity of the subject (H) includes breathing, pulse (beat, heartbeat), body movement (eg, turning over), and the like.

  The strain generating plate (11) is preferably formed of a material having a Young's modulus in the range of 30000 to 220,000 MPa. By setting the Young's modulus of the material of the strain-generating plate (11) within the above range, the strain-generating plate (11) is surely distorted and the strain is surely changed with the biological activity of the subject (H). Or something to do. However, in the present invention, the Young's modulus of the material of the strain generating plate (11) is not limited to the above range.

  The strain detecting means (12) is mounted in a fixed state at the intermediate portion in the length direction of the strain generating plate (11), and detects the strain of the strain generating plate (11) and its time variation as described above. Is. More specifically, the strain detection means (12) detects the strain generated in the intermediate portion in the longitudinal direction of the strain generating plate (11) and further its temporal variation. Further, the signal output from the strain detection means (12) is used for measuring the biological information of the subject (H).

  The strain detecting means (12) is composed of at least one strain gauge (12a), and in the present embodiment, is composed of four strain gauges (12a) (12a) (12a) (12a). As shown in FIGS. 2 and 3, of these strain gauges (12a) (12a) (12a) (12a), two strain gauges (12a) (12a) and the remaining two strain gauges (12a) ( 12a) is adhered to the upper and lower surfaces of the middle portion in the longitudinal direction of the strain-generating plate (11) with an adhesive. These strain gauges (12a) (12a) (12a) (12a) are electrically connected to each other to form a bridge circuit (in detail, a Wheatstone bridge circuit). That is, this bridge circuit is formed by incorporating four strain gauges (12a) (12a) (12a) (12a).

  (17) is an input signal line and an output signal line of the strain detection means (12) (more specifically, a bridge circuit of the strain gauge (12a)). 2 and 3, this input / output signal line (17) is shown by a single line common to each other, and connects the strain detection means (12) and the control board (13) to each other.

  The control board (13) is fixedly attached to one end portion in the length direction of the strain generating plate (11). As shown in FIG. 4, a control means (14), a wireless communication means (15), and a power source (16) are mounted on the control board (13).

  The control means (14) controls input / output signals of the distortion detection means (12) (that is, input signals to the distortion detection means (12) and output signals from the distortion detection means (12)). The control means (14) amplifies an output signal (output voltage) from the bridge circuit of the strain gauge (12a) of the strain detection means (12), and is amplified by the amplification section. And an A / D converter (not shown) that converts the signal from an analog signal to a digital signal.

  Furthermore, this control means (14) has a calculating part (not shown) which calculates the biological information of the subject (H) based on the signal converted by the A / D converting part. The arithmetic unit is configured by an arithmetic circuit (IC) having a storage unit (ROM, RAM) and a central arithmetic processing unit (CPU). And this calculating part is a filtering process part for extracting life activity components (biological information component), such as a respiratory component, a pulse component (pulsation component), and a body motion component, from the signal converted by the A / D conversion part And calculating biometric information based on the signal filtered by the processing unit. In the present invention, the calculation unit is not provided in the control means (14), but may be provided in the notification means (18) described later.

  The wireless communication means (15) transmits an output signal from the control means (14) as an output signal from the sensor (10) to an external device as a wireless signal. For example, an infrared signal or a radio signal is used as the wireless signal. In the present embodiment, the notification means (18) is used as an external device. Transmission of the wireless communication means (15) to the notification means (18) is performed via a wireless communication network such as a mobile phone network, the Internet, a wireless LAN, or directly without going through the wireless communication network. Is called.

  The power source (16) supplies power necessary for the operation of the sensor (10) to the sensor (10). Specifically, the strain detection means (12), the control means (14), and the wireless communication means (15) The power required for the operation of) is supplied to these. As the power source (16), a battery such as a dry battery, a storage battery, or a secondary battery is used. The power supplied from the power source (16) to the control means (14) is used for the operation of the control means (14), and part of the power is distorted from the control means (14) through the input signal line (17). It is supplied as operating power to the detection means (12).

  The notifying means (18) of the measuring device (20) is based on the output signal from the sensor (10) (specifically, the radio signal transmitted from the wireless communication means (15) of the sensor (10)). The biometric information is notified to the notification target person (notified person). Examples of the notification target include nurses, caregivers, and supervisors.

  The notification means (18) includes a notification speaker, a notification lamp, a display means, and the like. The notification speaker notifies the notification target person of predetermined information with sounds such as voice and buzzer sound. The notification lamp notifies the notification target person of predetermined information by lighting or blinking the lamp. The display means is constituted by a liquid crystal display, a plasma display, an organic EL display, a CRT, or the like, and notifies a notification target person by displaying predetermined information in characters or figures. (18a) is a receiving antenna of the notification means (18) for receiving the wireless signal transmitted from the wireless communication means (15).

  In the present invention, as described above, the notification means (18) calculates the biological information of the subject (H) based on the signal controlled by the control means (14) and transmitted by the wireless communication means (15). A portion (not shown) may be provided. In this case, the notification unit (18) may be configured to notify the subject person of the biological information of the subject (H) as the calculation result of the calculation unit provided in the notification unit (18).

  This notification means (18) is installed in a bedroom, a hospital room, a nurse station, a monitoring room, a caregiver's stuffing station, etc., or is mounted on a fixed telephone or a mobile phone.

  Next, the detailed configuration of the pillow cover (1A) of the first embodiment will be described below.

  As shown in FIGS. 2 and 3, in this pillow cover (1A), when the pillow (9) is covered with the pillow cover body (2), both ends of the pillow cover body (2) that are overlapped with each other (more specifically, One end (3a) and the other (3b) of a pair of hook-and-loop fasteners that can be engaged with each other are sewn and fixed to the pillow cover body (2) in the width direction of the unfolded pillow cover body (2). ing. And by engaging both surface fasteners (3a) and (3b) with each other, both ends of the pillow cover main body (2) are joined to each other so as to be separated from each other.

  The width (Wf) of each surface fastener (3a) (3b) is, for example, 10 to 100 mm. However, in the present invention, the width (Wf) of each surface fastener (3a) (3b) is not limited to the above range.

  A portion of the pillow cover body (2) disposed below the pillow (9) is provided with a strain plate receiving pocket (5) for receiving the strain plate (11) of the sensor (10) in a removable manner. ing. This pocket (5) is formed as follows.

  That is, on the inner surface of the part disposed on the lower side of the pillow (9) in the pillow cover body (2), the peripheral edge portion except the opening edge (4a) of the rectangular pocket piece (4) is sewn, Thereby, the pocket (5) is formed between the site | part arrange | positioned under the pillow (9) in the pillow cover main body (2), and the pocket piece (4). The opening (5a) of the pocket (5) opens toward one end in the length direction of the pillow cover body (2) in the unfolded state. The pocket piece (4) is made of a flexible sheet material, and is made of the same material as the pillow cover body (2), for example.

  The pocket (5) is set to a size corresponding to the size of the strain generating plate (11), and the strain generating plate (11) can be taken out and accommodated in the pocket (5). . Furthermore, by accommodating the strain generating plate (11) in the pocket (5), the strain generating plate (11) (that is, the sensor (10)) is fixed in position with respect to the pillow cover main body (2). It becomes.

  A fastener (7a) is sewn to the opening (5a) of the pocket (5) as a sealing member for sealing the opening (5a) so as to be opened and closed.

  In the pillow cover (1A) shown in FIG. 2, the strain plate (11) of the sensor (10) is accommodated in the pocket (5) from the opening (5a) of the pocket (5), and then the fastener (7a). Is closed so that the opening (5a) of the pocket (5) is sealed, thereby preventing the strain plate (11) (i.e., the sensor (10)) from accidentally popping out from the pocket (5). Yes. In addition, in the state where the strain generating plate (11) is accommodated in the pocket (5), the strain generating plate (11) is disposed horizontally.

  On the other hand, when the sensor (10) is replaced due to a failure of the sensor (10), the battery as the power source (16) is replaced, or the pillow cover (1A) is washed, the fastener (7a ) Is opened to open the opening (5a) of the pocket (5), and the strain plate (11) is taken out of the pocket (5), whereby the sensor (10) can be removed from the pillow cover body (2). it can.

  In the first embodiment, the fastener (7a) is used as the sealing member. However, in the present invention, the sealing member is not limited to the fastener (7a). For example, a button, a snap button (see the third embodiment described later), a hook-and-loop fastener, or the like may be used.

  2 and 3, in order to facilitate understanding of the configuration of the pillow cover (1A), the pillow cover main body (2), the pocket piece (4), the strain plate (11), the strain gauge (12a), and the hook-and-loop fastener. The thickness of (3a) (3b) etc. is exaggerated. Similarly, FIGS. 5, 7 and 9, which will be described later, also exaggerate the thickness of these members.

  Next, a biological information measuring method using the pillow cover (1A) and the biological information measuring device (20) of the first embodiment will be described below.

  First, as shown in FIG. 3, the strain plate (11) of the sensor (10) is accommodated in the pocket (5) of the pillow cover body (2) in the unfolded state. Then, the opening (5a) of the pocket (5) is sealed with the fastener (7a). Next, the pillow cover body (2) covers the pillow (9) and the pair of hook-and-loop fasteners (3a) and (3b) are engaged with each other so that both ends of the pillow cover body (2) overlap each other. Join the state. Thereby, as shown in FIG. 2, the pillow (9) is hold | maintained in the state covered with the pillow cover main body (2). In this state, the strain plate (11) is arranged in a state extending below the pillow (9) in the length direction of the pillow (9) (that is, in the left-right direction of the head of the subject (H)). . In addition, as a pillow (9) covered with the pillow cover main body (2), it is desirable to use a favorite thing of a test subject (H).

  Next, as shown in FIGS. 1 and 2, the pillow cover-attached pillow (9) thus covered with the pillow cover body (2) is placed on the bed (30) (specifically, the elastic mat (31) of the bed (30)). To place. Then, the head of the subject (H) is placed on the pillow (9) with the pillow cover, and the subject (H) goes to bed in a normal sleeping posture on the bed (30). Note that the sleeping posture includes a supine posture and a lateral posture.

  Then, the strain plate (11) is elastically slightly bent downward in a convex arc shape by the weight (load) of the head of the subject (H). As a result, bending strain is generated in the strain generating plate (11), and particularly, bending strain is intensively generated in the intermediate portion in the longitudinal direction of the strain generating plate (11).

  When the subject (H) sleeps, the strain of the strain plate (11) varies with time according to the biological activity (eg, breathing, pulsation, turning over) while the subject (H) is sleeping. Such distortion variation over time is detected by the distortion detecting means (12). Then, the output signal from the distortion detection means (12) (more specifically, the output voltage from the bridge circuit) is transmitted to the control means (14) of the control board (13) through the output signal line (17) (FIG. 4). reference).

  The signal transmitted to the control means (14) is controlled by the control means (14) and then transmitted to the notification means (18) as a wireless signal by the wireless communication means (15). And the alerting | reporting means (18) alert | reports a test subject's (H) biometric information to a notification subject. Thereby, the notification subject can know the biological information of the subject (H).

  Thus, the pillow cover (1A) of the first embodiment has the following advantages.

  In this pillow cover (1A), since the sensor (10) for measuring the biological information of the subject (H) is attached to the pillow cover body (2), for example, the favorite pillow (9) of the subject (H) is attached to the pillow cover (1). By covering with the pillow cover (1A), the sleep state of the subject (H) can be made the same as usual. Thereby, the subject (H) can sleep comfortably, and the normal biological information of the subject (H) can be measured.

  Further, since the sensor (10) is attached to the pillow cover main body (2) in a fixed position, the sensor for the pillow cover main body (2) due to body movement such as turning over the subject (H) during sleep. The problem that the position of (10) shifts can be prevented.

  Further, since the sensor (10) is detachably attached to the pillow cover body (2), when the sensor (10) is replaced due to a failure of the sensor (10) or when the pillow cover (1A) is washed. In addition, the sensor (10) can be removed from the pillow cover body (2).

  Further, since the sensor (10) is attached to a part of the pillow cover body (2) that is disposed below the pillow (9), the head of the subject (H) and the sensor (10) (strain plate ( 11)) with a pillow (9). For this reason, the subject (H) receives the head with the pillow (9) in a state in which the subject (H) suppresses as much as possible the feeling of discomfort such as a rugged feeling due to the presence of the sensor (10) (strain plate (11)) on the head. Can do. Thereby, sleeping comfort is improved.

  Moreover, since the sensor (10) includes the strain plate (11) and the strain detection means (12), the biological information of the subject (H) can be reliably measured. Further, since the strain generating plate (11) is accommodated in the strain generating plate receiving pocket (5) provided in the pillow cover main body (2) so as to be removable, the strain generating plate (11) (ie, the sensor (10)). ) Can be easily attached to the pillow cover main body (2), and the inconvenience that the strain generating plate (11) is accidentally dropped from the pillow cover main body (2) can be prevented.

  Further, the sensor (10) includes wireless communication means (15) for transmitting an output signal from the sensor (15) as a wireless signal, and the sensor (10) (specifically, detection of distortion of the sensor (10)). Since the operation power supply (16) of the means (12), the control means (14) and the wireless communication means (15) is attached to the strain generating plate (11), the sensor (10) can be made cordless. .

  Furthermore, the fastener (7a) is attached to the opening part (5a) of the pocket (5) of the pillow cover main body (2) as a sealing member that seals the opening part (5a) so as to be freely opened and closed. Therefore, after accommodating the strain-generating plate (11) in the pocket (5), by closing the fastener (7a), the strain-generating plate (11) unexpectedly jumps out of the pocket (5) and the pillow cover body ( The problem of falling off from 2) can be reliably prevented.

  Of course, in this pillow cover (1A), when the pillow (9) is covered by the pillow cover body (2), one of the pair of hook-and-loop fasteners (3a) And the other (3b) are provided. Therefore, the pillow (9) can be held in a state of being covered with the pillow cover (1A) by engaging both the hook-and-loop fasteners (3a) and (3b) with each other.

  Moreover, the biological information measuring device (20) of the first embodiment includes a pillow (9) with a pillow cover covered by the pillow cover (1A) and an output signal from the sensor (10) of the pillow cover (1A). And the notification means (18) for notifying the biological information of the subject (H) based on the information, the biological information of the subject (H) can be notified to the notification subject.

Second Embodiment
5 and 6 are views for explaining a pillow cover (1B) according to a second embodiment of the present invention. The configuration of the pillow cover (1B) will be described below with a focus on differences from the pillow cover (1A) of the first embodiment.

  In this pillow cover (1B), as shown in FIGS. 5 and 6, when the pillow (9) is covered with the pillow cover main body (2), the pillow cover is similar to the pillow cover (1A) of the first embodiment. One end (3a) and the other end (3b) of the pair of hook-and-loop fasteners are sewn to both end portions of the main body (2) that are overlapped with each other. On the other hand, the fastener is not attached to the opening (5a) of the pocket (5). Moreover, the opening edge part (4a) of a pocket piece (4) is arrange | positioned above the engaging surface of one surface fastener (3a) among both surface fasteners (3a) (3b). And as shown in FIG. 5, this pillow cover (1B) is a pocket piece between both hook-and-loop fasteners (3a) and (3b) when engaging both hook-and-loop fasteners (3a) and (3b) with each other. By sandwiching the opening edge (4a) of (4), the opening (5a) of the pocket (5) is sealed.

  In the pillow cover (1B) shown in FIG. 5, the pillow (9) is covered by the pillow cover body (2). Furthermore, the opening edge (4a) of the pocket piece (4) is sandwiched between both surface fasteners (3a) and (3b) so that the opening (5a) of the pocket (5) is closed and sealed. Both surface fasteners (3a) (3b) are engaged with each other.

  Thus, in the pillow cover (1B) of the second embodiment, when the pillow (9) is covered with the pillow cover main body (2), the pillow cover main body (2) has a pair of overlapping ends. One (3a) and the other (3b) of the hook-and-loop fastener are provided. Therefore, the pillow (9) can be held in the state of being covered with the pillow cover (1B) by engaging both the hook-and-loop fasteners (3a) and (3b) with each other.

  Further, when both the hook-and-loop fasteners (3a) and (3b) are engaged with each other, the opening edge (4a) of the pocket piece (4) is sandwiched between the hook-and-loop fasteners (3a) and (3b). Thus, the opening (5a) of the pocket (5) is sealed, so that a sealing member for sealing the opening (5a) of the pocket (5) is separately provided on the pillow cover body (2). There is no need to install. Thereby, the number of parts of the pillow cover (1B) can be reduced, and thus the manufacturing cost of the pillow cover (1B) can be reduced.

<Third Embodiment>
7 and 8 are views for explaining a pillow cover (1C) according to a third embodiment of the present invention. The configuration of the pillow cover (1C) will be described below with a focus on differences from the pillow cover (1A) of the first embodiment.

  In this pillow cover (1C), as shown in FIG. 8, there are no hook-and-loop fasteners at both ends in the lengthwise direction of the unfolded pillow cover body (2), and each of the two strings (2a) (2a) is sewn. And as shown in FIG. 7, this pillow cover main body (2) covers the pillow (9), and the strings (2a) and (2a) corresponding to each other are detachably tied, whereby the pillow (9) It is held in a state covered with a pillow cover (1C).

  Moreover, as shown in FIG. 8, in this pillow cover (1C), the opening part (5a) of the pocket (5) is opening toward the width direction one end side of the pillow cover main body (2) of an unfolded state. . Furthermore, one or a plurality of snap buttons (7b) are sewn into the opening (5a) of the pocket (5) as a sealing member. Then, after accommodating the strain generating plate (11) (that is, the sensor (10)) in the pocket (5) from the opening (5a) of the pocket (5), the snap button (7b) is closed to close the pocket ( The opening (5a) of 5) is sealed, and inadvertent jumping out of the pocket (5) of the strain generating plate (11) (that is, the sensor (10)) is prevented.

<Fourth embodiment>
9 and 10 are views for explaining a pillow cover (1D) according to a fourth embodiment of the present invention. The configuration of the pillow cover (1D) will be described below with a focus on differences from the pillow cover (1A) of the first embodiment.

  In this pillow cover (1D), as shown in FIG. 10, the pillow cover body (2) is formed in a cylindrical shape in advance. And as shown in FIG. 9, the pillow (9) is inserted and arrange | positioned in this cylindrical pillow cover main body (2).

  Moreover, as shown in FIG. 10, in the outer surface of the part arrange | positioned under the pillow (9) in this pillow cover main body (2), the periphery except the opening edge part (4a) of a pocket piece (4) The part is sewn, and the pocket (5) is formed between the site | part arrange | positioned below the pillow (9) in the pillow cover main body (2), and the pocket piece (4). The opening (5a) of the pocket (5) opens toward one end in the width direction of the pillow cover body (2) in the unfolded state. A fastener (7a) is sewn as a sealing member in the opening (5a) of the pocket (5). Then, the strain plate (11) (i.e., the sensor (10)) is accommodated in the pocket (5) from the opening (5a) of the pocket (5), and then the fastener (7a) is closed, whereby the pocket (5) The opening (5a) is sealed, and inadvertent protrusion of the strain generating plate (11) (ie, the sensor (10)) from the pocket (5) is prevented.

  Although several embodiments of the present invention have been described above, the present invention is not limited to those shown in the above embodiments.

  In the present invention, the pillow (9) covered by the pillow cover is preferably a favorite pillow of the subject (H), but is not necessarily a favorite pillow of the subject (H).

  In the present invention, the pillow cover main body (2) may be formed in a bag shape in advance and cover the pillow (9) by housing the pillow (9) therein. .

  In the present invention, a support sheet that elastically supports the strain generating plate (11) may be disposed on the lower surface of the strain generating plate (11).

  In the present invention, the strain detection means (12) is not limited to the strain gauge (12a), and may be other means.

  Of course, in the present invention, the sensor (10) is not limited to the one including the strain generating plate (11) and the strain detecting means (12).

  Further, in the present invention, the biological information measuring device (20) further includes the presence state of the subject (H) in the bed (30), for example, entering or leaving the subject (H) in addition to the biological information of the subject (H). May be configured to be detected.

  The present invention can be used for a pillow cover having a function of measuring biological information of a subject, a pillow with a pillow cover, and a biological information measuring device.

FIG. 1 is a schematic plan view showing a pillow cover, a pillow with a pillow cover, and a biological information measuring device according to a first embodiment of the present invention in use. FIG. 2 is a cross-sectional view of the pillow with the pillow cover. FIG. 3 is an exploded perspective view of the pillow cover. FIG. 4 is a block diagram showing the configuration of the sensor of the pillow cover. FIG. 5 is a cross-sectional view of a pillow with a pillow cover according to the second embodiment of the present invention. FIG. 6 is an exploded perspective view of the pillow cover of the pillow with the pillow cover. FIG. 7 is a cross-sectional view of a pillow with a pillow cover according to the third embodiment of the present invention. FIG. 8 is an exploded perspective view of the pillow cover of the pillow with the pillow cover. FIG. 9 is a cross-sectional view of a pillow with a pillow cover according to the fourth embodiment of the present invention. FIG. 10 is a perspective view of the pillow cover of the pillow with the pillow cover.

Explanation of symbols

1A to 1D: Pillow cover 2: Pillow cover body 3a, 3b: A pair of surface fasteners 4: Pocket piece 4a: Open edge of pocket piece 5: Pocket 5a: Pocket opening 7a: Fastener (sealing member)
7b: Snap button (sealing member)
9: Pillow 10: Sensor 11: Strain plate 12: Strain detection means 13: Control board 14: Control means 15: Wireless communication means 16: Power source 18: Notification means 20: Biological information measuring device 30: Bed (bed)
H: Subject

Claims (10)

  A pillow cover, wherein a sensor for measuring biological information of a subject is attached to the pillow cover body.   The pillow cover according to claim 1, wherein the sensor is attached to the pillow cover body in a state where the position of the sensor is fixed with respect to the pillow cover body.   The pillow cover according to claim 1 or 2, wherein the sensor is detachably attached to the pillow cover main body.   The pillow cover according to any one of claims 1 to 3, wherein the sensor is attached to a portion of the pillow cover main body that is disposed below the pillow. The sensor includes a belt-shaped strain generating plate disposed in a state extending in the left-right direction of the subject's head, and a strain detection unit that is attached to the strain generating plate and detects strain of the strain generating plate. , And
The pillow cover according to any one of claims 1 to 4, wherein the strain generating plate is accommodated in a strain generating plate accommodation pocket provided in the pillow cover main body so as to be removable. The sensor includes wireless communication means for transmitting an output signal from the sensor as a wireless signal,
The pillow cover according to claim 5, wherein an operating power source of the sensor is attached to the strain generating plate.   The pillow cover according to claim 5 or 6, wherein a sealing member that seals the opening is provided at the opening of the pocket. One and the other of a pair of hook-and-loop fasteners that can be engaged with each other to detachably join the both ends of the pillow cover body to each other on both ends of the pillow cover body that overlap each other when the pillow is covered with the pillow cover body And are provided,
An opening edge of a pocket piece that forms the pocket between the pillow cover body and the pillow cover body is disposed above the engagement surface of one of the surface fasteners.
When the two surface fasteners are engaged with each other, the opening edge of the pocket piece is sandwiched between the two surface fasteners, whereby the opening of the pocket is sealed. The pillow cover according to any one of claims 5 to 7.   A pillow with a pillow cover, which is covered by the pillow cover according to any one of claims 1 to 8. A pillow with a pillow cover covered by the pillow cover according to any one of claims 1 to 8,
An informing means for informing the subject's biological information based on an output signal from the pillow cover sensor, a biological information measuring device.

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