JP6925920B2 - Dizziness prevention system - Google Patents

Description

The present invention relates to a dizziness prevention system capable of searching for the anterior-posterior angle of the head at bedtime in benign paroxysmal head dizziness (BPPV) to prevent dizziness and lead to a good sleep.

The most common cause of benign paroxysmal head dizziness (BPPV, Benign Paroxysmal Positional Vertigo) is the otolith in the oval sac that has fallen off due to aging or trauma, and the ear floats in the lymph fluid of the semicircular canals. By wandering in as a stone. There are semicircular canal calculus in which dizziness develops due to the displacement of cupula due to floating otoliths generated in the semicircular canals, and cupula calculus in which otoliths adhere to the cupula in the semicircular canals and cause deviation.

Much research has been done on how to diagnose and treat BPPV. For example, the posture to be taken by the subject is calculated from the equilibrium function test device (Patent Document 1) capable of diagnosing the head position and the nystagmus in association with each other, and the analysis result of the eyeball image with respect to the analysis result of the subject's head position. There is an electronystagmography (Patent Document 2). Further, when BPPV is diagnosed, the Epley method, the Semon method, the rolling maneuver method, and the like are known as physical therapies for expelling otoliths from the semicircular canals.

JP-A-9-285468 JP-A-2005-304912

However, the diagnostic and therapeutic methods so far have focused on the event after the otolith has fallen off and entered the semicircular canal, and prevent it from entering the semicircular canal has not been the subject of research. If otoliths can be prevented from entering the semicircular canals, dizziness can be eliminated and a good sleep can be achieved.

Therefore, an object of the present invention is to provide a dizziness prevention system capable of investigating the anteroposterior angle of the head at bedtime and preventing otoliths from entering the semicircular canals.

The above object of the present invention is achieved by the following means. The corresponding elements in the embodiment are shown in parentheses, but the present invention is not limited thereto.

(1) A bed device (14) provided with a bed (10) capable of tilting the pillow (20) in the front-rear direction, and
A tilt control means (bed tilt angle control device 13) for tilting and controlling the bed to a preferred tilt angle of the user, and
A measuring means (sleeping inclination angle detection sensor 31) that measures the front-back inclination angle of the pillow from the inclination angle of the bed or the inclination angle of the pillow.
A measuring side communication means (communication control unit 35) capable of transmitting tilt angle value information based on the measurement result of the measuring means, and
A user terminal (40) having a terminal-side communication means (91) connected to the measurement-side communication means by a wired or wireless communication line and capable of receiving the tilt angle value information.
It is a dizziness prevention system equipped with
The user terminal (40) is
The degree of dizziness is divided into multiple dizziness ranks (small, medium, large), and multiple operation means for determining the rank are provided corresponding to each of the dizziness ranks (when awakening is good ○, when awakening is normal △ ・When you are awake, □ button; measurement buttons 61, 62, 63),
Based on the operation of one of the plurality of rank determination operating means, the current front-rear direction inclination from the measuring means through the terminal-side communication means (91) and the measurement-side communication means (communication control unit 35). An acquisition means (93) for acquiring inclination angle value information (D1) related to an angle, and
At least the tilt angle value information (D1) acquired from the acquisition means and the dizziness rank information (small, medium, large) related to the operated rank determination operating means among the plurality of dizziness ranks. The storage control means (94) that stores the information associated with) in the memory (100) as dizziness history data.
A display means (liquid crystal display screen 41) capable of displaying information related to the dizziness history data, and
It has a display control means (history list control means 95) capable of controlling the display means.
A dizziness prevention system characterized by this.

(2) The user terminal (40) is
Further, it has an tilt angle changing operation means (tilt angle changing button 50) configured to be operable by the user and capable of setting the tilt angle in the front-rear direction of the user's preference.
The terminal-side communication means (91)
The tilt angle setting information transmitting means for transmitting the tilt angle setting information to the tilt control means (13) based on the operation of the tilt angle changing operating means is included.
The tilt control means (13)
Based on the tilt angle setting information from the user terminal, tilt control for the bed device is executed.
The dizziness prevention system according to (1) above.

(3) The dizziness history data is
The tilt angle value information (D1) acquired from the acquisition means and the dizziness rank information (small, medium, large) related to the operated rank determining operation means among the plurality of dizziness ranks. And the data associated with the measurement date information,
The display control means (98)
As the information related to the dizziness history data, at least the dizziness rank information corresponding to the measurement date can be displayed on the display means (41).
The dizziness prevention system according to (1) or (2) above.

(4) The user terminal is
Operation means for optimum value calculation command (optimal value calculation command button 70) that can be operated by the user,
When the operation means for the optimum value calculation command is operated, the optimum value calculation for calculating the optimum value of the front-back inclination angle at which the dizziness degree rank is lowered based on the past multiple times of dizziness history data stored in the memory. It also has means (optimal value calculation means 96).
The display control means (98)
Information about the optimum value can be displayed on the display means (41).
The dizziness prevention system according to any one of (1) to (3) above.

(5) The user terminal is
Optimal value calculation command operation means (optimal value calculation means 96) that can be operated by the user,
When the operation means for the optimum value calculation command is operated, among the past multiple times of dizziness history data stored in the memory, the average value of the anteroposterior tilt angle related to the dizziness rank information having a low dizziness rank is calculated. It also has an optimum value calculation means (optimum value calculation means 96) for calculating as an optimum value.
The display control means (98)
Information about the optimum value can be displayed on the display means (41).
The dizziness prevention system according to any one of (1) to (3) above.

(6) Any of the above (1) to (5), wherein the measuring means and the measuring side communication means are configured as a measurement communication unit (30) and are provided on the pillow or the bed. The dizziness prevention system described in.

According to the dizziness prevention system of the present invention, it is possible to prevent the dizziness of BPPV by eliminating the event itself in which the otolith enters the semicircular canal, and it is possible to wake up and get a good sleep. Further, since the dizziness prevention system of the present invention does not involve complicated and large-scale processing such as imaging and image recognition, the subject can be easily used in home therapy.

It is a figure which showed the outline of the principle that dizziness is prevented or the symptom is alleviated in benign paroxysmal head dizziness (BPPV) by this invention. It is the schematic which showed the dizziness prevention system which concerns on embodiment of this invention. It is a block diagram which showed the structure of the dizziness prevention system which concerns on embodiment of this invention. It is a figure which showed that the symptom in BPPV is improved by applying the dizziness prevention system of this invention.

(History of invention)
Benign paroxysmal head dizziness (BPPV, Benign Paroxysmal Positional Vertigo) is the most common disease, accounting for about 40% of the dizziness disease statistics in Japan. This statistical result is constant regardless of the location, nature, and department of medical institutions.

The same tendency is seen in Western countries, and it is said that the tendency of otolith peeling progresses with aging, and more than 50% of elderly dizziness patients who visit dizziness clinics are due to BPPV, and even elderly people who do not go to medical institutions are about. There is also a report that 10% have potential exfoliated otoliths.

In particular, it is common among women in their 60s and 70s, and since the main component of otoliths is calcium carbonate, it has been pointed out that it is related to calcium metabolism disorders associated with menopause and osteoporosis.

Normally, even if the exfoliated otolith gets into the semicircular canals, it is metabolized in about one month and the dizziness symptoms disappear completely. However, in the elderly, otolith peeling occurs frequently, and the peeled otolith in the semicircular canal does not disappear easily. Such elderly patients suffer from relentlessly induced vertigo during head movements and body movements, instead of having fewer typical vertigo attacks.

For the elderly, dizziness causes a negative spiral of falls, fractures, bedridden, and dementia. In addition, doctors are often confused by atypical complaints from the elderly, often diagnosing dizziness of unknown cause. Elderly BPPV patients diagnosed with dizziness of unknown cause are exposed to mental anxiety and will go on a nationwide pilgrimage in search of a medical institution that can make an accurate diagnosis.

Leaving such elderly BPPV patients unattended will also put pressure on the medical economy in Japan. If the onset of BPPV can be prevented in daily life, 50-60% of dizziness will be suppressed, and further increasing the QOL of the elderly will lead to a significant reduction in medical expenses.

When will the opportunity for peeled otoliths to enter the semicircular canals in BPPV come? As a result of diligent research efforts on this issue, the present inventor has found that it is when the patient goes to bed.

FIG. 1 outlines the principle that dizziness is prevented or alleviated in benign paroxysmal head dizziness (BPPV) by the present invention. First, with reference to FIG. 1, it will be described that the degree of otoliths entering the semicircular canals differs depending on the difference in the anteroposterior angle of the head at bedtime.

FIG. 1A shows the head in a lateral position parallel to the floor with the vestibule of the inner ear enlarged. The vestibule is divided into a semicircular canal that controls the sense of balance (rotational acceleration) and an otolith that senses the degree of inclination of the head. The semicircular canals consist of three semicircular canals, the first semicircular canal 1, the outer canal 2, and the second semicircular canal 3, which form an angle of 90 degrees with each other. And a spherical sac. One base of the semicircular canals 1 to 3 is a huge part 5 connected to the utricle 6, and the inside is filled with lymph. The structure of the ampulla 5 has sensory hairs inside and is bound by a gel-like substance, cupula. Of the semicircular canals 1 to 3, the first semicircular canals 1 and the second semicircular canals 3 are total leg portions 4 to which one leg side that is not the enormous portion 5 is joined.

If there is an otolith in the semicircular canal, the otolith moves in the semicircular canal as the head rotates. At this time, the lymph fluid in the semicircular canals also moves and pulls the cupula. The sensory hair is shaken (the otolith stimulates the cupula to move and the sensory hair is shaken), which causes dizziness. In addition, when otoliths are connected in a mass in the semicircular canal (semicircular canal otolith 7) or adhere to cupula (cupula stone 8), it becomes intractable.

As shown in FIG. 1A, when the head is in a lateral posture, the total leg portion 4, which is a portion where one leg side of the first semicircular canal 1 and the second semicircular canal 3 is joined, is in an inclined posture facing diagonally upward. Therefore, when the otolith in the oval sac is peeled off, the otolith easily enters the first semicircular canal 1 and the second semicircular canal 3 from the total leg portion 4. At this time, the inclination angle of the total leg portion 4 with respect to the horizon is approximately 45 °.

However, as shown in FIG. 1 (b), when the head rises in the front-rear direction and the head is in an oblique posture, the total leg portion 4 changes from an upward inclined posture (FIG. 1 (a)) to a horizontal posture (FIG. 1 (a)). Shift to 1 (b)). Therefore, even if the otolith in the utricle 6 is peeled off, it becomes difficult to enter the total leg portion 4, and as a result, the otolith can be prevented from entering the first semicircular canal 1 or the second semicircular canal 3.

BPPV can occur in any semicircular canal, but the most statistically frequent is the latter semicircular canal type (about 2/3 of the entire BPPV), which is the lowest position at the time of dissection, followed by the outer semicircular canal type (about 1 of the entire BPPV). / 3). Based on this fact, by raising the upper body at bedtime, it is possible to prevent the exfoliated otolith from entering the latter semicircular canals 3 and the outer semicircular canals 2.

By devising the anatomically calculated angle of the total legs 4 and the material that holds the head, neck, and shoulders, the otolith that had fallen off the night before does not get lost in the semicircular canals, and a comfortable morning It will be possible to wake up.

(Dizziness prevention system (dizziness prevention pillow system))
The outline of the dizziness prevention system (vertigo prevention pillow system) of the present invention will be described from the aspect of use. First, the tilt angle change button (50), which is an operation means for changing the tilt angle, is operated, and the pillow (20) is preferred. Set the tilt angle in the front-back direction and go to bed. When you wake up, you can judge whether you are awake or not, and use multiple tilt angle measurement instruction buttons 60 (when awakening is good ○, awakening), which are divided into dizziness ranks (small, medium, large) as an operation means for determining the rank. Normal time △ ・ When awakening deeply □ button; Measure button 61, 62, 63) Press the corresponding one and tilt the pillow from the measurement communication unit (30) provided on the pillow (20) or bed (10). The angle value information (D1) is acquired. The dizziness history data is stored as the dizziness history data, and the dizziness history data is displayed as the dizziness history data. A list is displayed on the display unit of (LCD display screen 41). By looking at this, it is possible to search for the optimum anterior-posterior inclination angle of the head without dizziness.

Hereinafter, preferred embodiments of the dizziness prevention system according to the present invention will be described with reference to the drawings.

In FIG. 2, 10 is a bed in which the upper part above the waist can be raised diagonally with respect to the lower part, and 20 is a pillow simply placed or antifixed on the upper part of the bed 10. .. The bed 10 is a bed capable of controlling an elevating mechanism 11 that allows the upper portion to be bent with respect to the lower portion and raising the upper portion at an angle, and a drive motor 12 thereof so that the upper portion can be stopped at a desired inclination angle. It is provided with an inclination angle control device 13. The bed 10, the elevating mechanism 11, the drive motor 12, and the bed inclination angle control device 13 constitute the electric bed device 14 as a whole.

The pillow 20 is composed of a pillow body (head support) and a pillow cover, and the pillow cover is small because it measures the patient's head tilted at an anterior-posterior angle to go to bed or rest. The measurement communication unit 30 of the above is provided. Although the measurement communication unit 30 is attached to the pillow cover here, it may be provided on the pillow body. It can also be provided on a band worn on the patient's head, or directly attached to the patient's head or chest, for example. Further, although only one measurement communication unit 30 is provided in the present embodiment, a plurality of measurement communication units 30 may be provided. For example, one measurement communication unit 30 may be provided at each of the left end and the right end of the pillow cover. Further, in this embodiment, the pillow 20 is adopted, but another head that functions as the pillow 20 if it is possible to measure the anterior-posterior angle at which the patient tilts his / her head to sleep. A part support can be adopted. Further, the pillow 20 may not be provided, and for example, a tiltable sitting chair or a reclining chair having no pillow may be adopted. In this case, the measurement communication unit 30 may be formed at a position where the front-rear direction angle can be measured. In the case of this embodiment, the pillow 20 is provided with the measurement communication unit 30, which is also referred to as a dizziness prevention pillow system.

The dizziness prevention pillow system of the present embodiment includes an electric bed device 14, a measurement communication unit 30 provided on the pillow side, and a user terminal 40 connected to the unit by a wireless or wired communication line. NS.

(Measurement communication unit 30)
The measurement communication unit 30 is mainly composed of a CPU and a memory, and has a sleeping inclination angle detection sensor 31, a measurement control unit 32, a storage means 33, a storage control unit 34, and a communication control unit 35, as shown in FIG. ing.

First, a sleeping tilt angle detection sensor 31 composed of an acceleration sensor is built in as a measuring means for measuring the tilt angle of the pillow in the front-rear direction from the tilt angle of the bed or the tilt angle of the pillow. Further, when the measurement instruction signal (tilt angle setting information) sent from the user terminal 40 via the communication line (wirelessly in the present embodiment) is received, the built-in sleeping tilt angle detection sensor 31 is used. It has a measurement control unit 32 (CPU) that indirectly measures the front-back inclination angle of the head of the human body mounted on the pillow 20 by directly measuring the front-back inclination angle of the pillow 20. Furthermore, it has a storage means 33 for storing tilt angle value information (D1) related to the tilt angle in the front-rear direction based on the measurement result measured by the sleeping tilt angle detection sensor 31, and a storage control unit 34 (CPU) thereof. The storage means 33 includes RAM, which is a volatile memory that requires electric power to hold data, but a non-volatile memory may be used. Further, an external storage device such as a card-type memory or a flash memory such as a USB memory may be additionally provided in a connectable means (external storage device connection means) that can be inserted and removed. In this case, the external storage device and the storage means 33 may be configured to perform data communication, and all or a part of the data stored in the storage means 33 may be configured to be transmittable to the external storage device. Then, it has a communication control unit 35 (CPU) capable of passing tilt angle value information (D1) related to the tilt angle in the front-rear direction measured by the sleeping tilt angle detection sensor 31 to the user terminal 40 through a communication line.

As the measurement communication unit 30, a wearable biosensor WHS-1 (manufactured by Union Tool Co., Ltd.) can be used. This wearable biosensor has a function (sleeping inclination angle detection sensor 31, measurement control unit 32) that can simultaneously measure heart rate (heart rate pulse wave, heart rate cycle or heart rate), body surface temperature and triaxial acceleration, and the measured data. (Storage means 33, storage control unit 34) and a function (communication control unit 35) that can deliver the measurement result data to the user terminal 40 such as a smartphone or tablet by wireless communication. Has. As a wireless function, it has a data communication system with a reach of about 20 m (straight line) using a 2.4 GHz band. A part of the above-mentioned function of measuring the three-axis acceleration works with the sleeping inclination angle detection sensor 31. It is also possible to use a wearable biosensor WHS-2 (manufactured by Union Tool Co., Ltd.) that performs wireless communication via Bluetooth.

(User terminal 40)
The user terminal 40 is a terminal device that comprises a computer including a calculation unit by a CPU, a memory (RAM), a program (ROM), a display unit by a liquid crystal display screen, and the like. It is configured to operate by. For this terminal device, for example, it may be a dedicated terminal device, or a terminal device capable of operating by introducing a dedicated application into a general smartphone or tablet (portable terminal device) may be adopted. good.

The lower side of FIG. 2 shows a liquid crystal display screen 41 that functions as a display unit and an input unit of a user terminal 40 (for example, a smartphone) activated under the application. The liquid crystal display screen 41 is provided with a dizziness history display area 42 and a plurality of types of operation buttons (soft keys) 50, 60, 70, 80. In this embodiment, it is assumed that a smartphone in which a dedicated application is installed (installed) is adopted as the user terminal 40. Further, the liquid crystal display screen 41 is a touch pad screen (touch pad type liquid crystal screen) of a smartphone, and various touch operations such as tap operation, flick operation, and slide operation can be performed.

The operation button 50 is an inclination angle as an operation means for changing the inclination angle, which is operated when the inclination angle of the upper portion of the bed 10 is changed to control the inclination of the pillow in the front-rear direction to the inclination angle of the user's preference. It is a change button. The user terminal 40 has a tilt angle setting control means 92 that creates tilt angle setting information for a tilt angle corresponding to the operation amount or a specified value based on the operation of the tilt angle change button 50, and the tilt angle setting control means 92. The tilt angle setting information transmitting means for transmitting the angle setting information to the bed tilt angle control device 13 is included. The bed tilt angle control device 13 tilts and controls the bed 10 to a corresponding angle based on the tilt angle setting information from the user terminal 40.

The tilt angle setting and the corresponding tilt angle control form include (i) a pillow corresponding to the tilt angle set value received by the bed tilt angle control device 13 by transmitting the tilt angle set value from the user terminal 40. In addition to the form in which the inclination of the bed 10 is automatically controlled so as to have the inclination angle of 20 in the front-rear direction, (ii) the operation amount information (for example, the pressing time length) regarding the operation amount of operating the inclination angle change button 50. , The ascending / descending code information (+ code for ascending, − code for descending) indicating the operation direction for raising or lowering the bed 10 is transmitted, and is received according to the operation amount information and the elevating code information received by the bed tilt angle control device 13. The bed tilt angle is controlled by transmitting a bed tilting signal or a bed descending signal having a length corresponding to the time during which the bed is tilted in the ascending / descending code direction by the amount of operation performed and (iii) the tilt angle change button 50 is operated. When the device 13 receives the bed ascending signal, the bed pillow side is raised by the time length of the signal, and when the device 13 receives the bed lowering signal, the bed pillow side is lowered by the time length of the signal. ..

In the case of this embodiment, as the simplest embodiment, the tilt angle setting control means 92 receives an ascending command signal as tilt angle setting information from the wireless communication means 91 while the upper edge side of the tilt angle change button 50 is pressed. S1 is transmitted to the measurement communication unit 30 on the pillow 20 side, and the upper portion of the bed 10 is moved ascending. When the lower edge side of the tilt angle change button 50 is pressed, the wireless communication means 91 transmits a descent command signal S2 as tilt angle setting information to the measurement communication unit 30 on the pillow 20 side during that time, and the bed 10 Make the upper part move downward. As a result, the tilt angle of the bed 10 and, by extension, the tilt angle in the front-rear direction of the sleeping pillow 20 can be changed to a desired tilt angle and stopped. When going to bed, the patient operates the tilt angle change button 50 to set the front-back tilt angle of the pillow 20 to the desired front-back tilt angle, and then goes to bed.

The operation button 60 is an inclination angle measurement instruction button that is operated to know the front-back inclination angle of the sleeping pillow 20 when awake. The tilt angle measurement instruction button 60 is composed of a plurality of measurement buttons for instructing the measurement of the tilt angle, which are provided corresponding to each of the dizziness degree ranks by dividing the degree of dizziness (dizziness degree) into a plurality of ranks. .. Here, the degree of dizziness is divided into three, "small", "medium", and "large", and one measurement button 61, 62, 63 is provided for each. The measurement button 61 (round button) with a degree of dizziness "small" indicates the anterior-posterior inclination angle of the head during sleep (accurately, the pillow) when awakening with a refreshing feeling (when awakening is "good"). It is a measurement button (hereinafter referred to as "measurement button 61 when awakening is good") that is operated to indicate the measurement of the front-back inclination angle of 20). The measurement button 62 (triangular button) with a degree of dizziness "medium" indicates the anterior-posterior inclination angle of the head during sleep when awakening with a feeling that is neither refreshing nor unpleasant (in the case of awakening "normal"). A measurement button (hereinafter referred to as "awakening normal measurement button 62") that is operated to indicate measurement. The measurement button 63 (square button) with a degree of dizziness "Large" is used to indicate the measurement of the anterior-posterior inclination angle of the head during sleep when awakening with an unpleasant feeling (in the case of awakening "unpleasant"). It is a measurement button (hereinafter referred to as "measurement button 63 when awakening is unpleasant") to be operated.

With reference to FIG. 3, the user terminal 40 has a computer-based control means 90 including a CPU. The control means 90 also includes the wireless communication means 91 and the tilt angle setting control means 92. Further, the control means 90 transmits the measurement instruction signal S3 to the measurement communication unit 30 based on the selective operation of one of the measurement buttons 61 to 63 as a part thereof, and the measurement communication unit 90. The pillow 20 has an inclination angle value acquisition means 93 for executing the measurement of the inclination angle in the front-rear direction of the pillow 20 and acquiring the inclination angle value information D1 of the measurement result from the measurement communication unit 30. When one of the measurement buttons 61 to 63 is selectively operated, the inclination angle value acquisition means 93 transmits the measurement instruction signal S3 to the measurement communication unit 30 on the pillow 20 side by the wireless communication means 91. In the measurement communication unit 30, the transmission control function for executing the measurement for the front-back tilt angle of the pillow 20 and the front-back tilt angle of the pillow 20 on the measurement communication unit 30 side of the pillow 20 in response to the measurement instruction signal S3. It has a reception control function of receiving the tilt angle value information D1 transmitted from the measurement communication unit 30 as the measurement result from the wireless communication means 91.

Further, the control means 90 has the tilt angle value information D1 acquired from the measurement communication unit 30 and the dizziness rank information according to the type of the operated measurement buttons 61 to 63 (small, medium, large or good, normal, unpleasant). Is associated with and is made into one set of information, and the sum of the date and time information at the time of measurement (hereinafter referred to as "measurement date information") is stored as "dizziness history data" in a RAM or a card-type storage medium. It has a control means 94.

Further, the control means 90 includes a history list display control means 95 that displays a list of dizziness history data on the liquid crystal display screen 41 by distinguishing the dizziness history data for each measurement and displaying the dizziness history data together with the measurement date information. FIG. 2 illustrates how the dizziness history data is listed on the liquid crystal display screen 41. By looking at this dizziness history data, the patient can know the anteroposterior inclination angle of the pillow 20 to be selected and set the next time he / she goes to bed.

Further, the control means 90 includes an optimum value calculation means 96 that calculates and displays the optimum value of the tilt angle in the front-rear direction. The operation button 70 is an optimum value calculation command button that operates the optimum value calculation means. When the optimum value calculation command button 70 is pressed, the optimum value calculation means 96 is activated, and the dizziness degree rank is calculated by calculation from the past multiple times of "vertigo history data" stored in the RAM of the memory 100 or the card-type storage medium. Calculate the optimum value of the tilt angle in the front-back direction that becomes lower. The display control means 97 displays the result as the "optimal tilt angle" on the liquid crystal display screen 41.

When the optimum value calculation command button 70 is pressed and held, the optimum value calculation means 96 tilts in the front-rear direction related to the dizziness rank information having a lower dizziness rank among the past multiple times of dizziness history data stored in the memory 100. Calculate the average value of the angles as the optimum value. The display control means 97 displays information on the optimum value on the liquid crystal display screen 41 as the display means.

Further, the control means 90 has a clear control means 98. The operation button 80 is a clear button that clears (initializes) data such as the optimum tilt angle of the memory 100. By pressing the clear button 80 once, the clear control means 98 executes a clear process for initializing the data. For example, the data of the "optimal tilt angle" obtained by the above calculation is deleted to erase the display from the liquid crystal display screen 41. Further, by selecting an unnecessary dizziness history data on the screen and then pressing and holding the clear button 80 for a predetermined number of seconds, the unnecessary dizziness history data is deleted. In addition, what kind of data (the above-mentioned above) when what kind of operation procedure (for example, one or more times press, continuous hit press (continuous tap), long press, etc.) was performed on the operation button 80 (clear button). Whether or not the optimum tilt angle data and unnecessary dizziness history data can be deleted can be appropriately determined. Of course, if the data to be erased (cleared) is different, different operating procedures are assigned. In addition, an operating procedure for clearing all data can be defined.

(Example of use)
Upon going to bed, the patient adjusts the angle of the bed 10 by operating the tilt angle change button 50, and sets the pillow 20 to the tilt angle in the front-rear direction desired by himself / herself. Then, he goes to bed with his head resting on the pillow 20.

After that, when waking up from bedtime, depending on whether the degree of dizziness at that time was small, medium, or large (whether awakening is good, normal, or unpleasant), the awakening good time measurement button 61, awakening normal The corresponding button of the hour measurement button 62 and the awakening unpleasant measurement button 63 is pressed. The measurement instruction signal S3 is transmitted to the measurement communication unit 30 on the pillow 20 side. Upon receiving this, the measurement communication unit 30 measures the tilt angle in the front-rear direction of the pillow 20 using the sleeping tilt angle detection sensor 31, saves the history in its own memory 36, and uses the measurement result as the tilt angle value information D1. It is sent back to the user terminal 40.

The user terminal 40 receives this. Then, the received tilt angle value information D1 and the dizziness rank information (small, medium, large (whether good awakening, normal, unpleasant)) according to the type of the operated measurement buttons 61 to 63 are associated with each other to form one set of information. , Add "measurement date information" to this and store it as "dazzle history data" in the RAM of the internal memory 100 or the built-in memory card. In this way, the tilt angle value information of the pillow 20 is collected from the application side. do.

For example, when waking up from sleep, if the awakening is unpleasant, the awakening unpleasant measurement button 63 is pressed. Then, the inclination angle of the pillow 20 at that time is measured, and as dizziness history data, for example, "inclination angle 30 ° + dizziness degree rank large (awakening discomfort) + measurement date information" is collected. At this time, the dizziness history is displayed on the liquid crystal display screen 41, such as "x dizziness large inclination 30 ° * year * month * day * hour * minute". If this is the first measurement result, the patient will see the dizziness history of this unfavorable result, and next time, he will try to fall asleep by changing the tilt angle of the pillow 20 to a different value.

When you go to bed at the tilt angle after the above change and wake up from sleep, you can judge for yourself whether the dizziness rank at that time is small, medium, or large (good awakening, normal, unpleasant). If it is not refreshing but not unpleasant (in the case of awakening "normal"), press the corresponding awakening normal time measurement button 62. Then, the tilt angle of the pillow 20 is measured, and for example, "tilt angle 40 ° + dizziness rank (normal awakening) + measurement date information" is collected as dizziness history data, and "△ dizziness middle tilt" is displayed on the liquid crystal display screen 41. The dizziness history of "40 ° * year * month * day * hour * minute" is displayed. If this is the result of the second measurement, the patient will see the dizziness history of this inadequate result, and next time, he will try to fall asleep by changing the tilt angle of the pillow 20 to a different value.

When you go to bed at the tilt angle after the above change and wake up from sleep, you can judge for yourself whether the dizziness rank at that time is small, medium, or large (good awakening, normal, unpleasant). When the awakening is refreshing (when the awakening is "good"), the corresponding measurement button 61 when the awakening is good is pressed. Then, the tilt angle of the pillow 20 is measured, for example, "tilt angle 45 ° + dizziness rank small (good awakening) + measurement date information" is collected as dizziness history data, and "○ dizziness small" is displayed on the liquid crystal display screen 41. The dizziness history is displayed, such as "Inclination 45 ° * year * month * day * hour * minute". Therefore, the next time he goes to bed, he will try to go to bed at this dizzying tilt angle of 45 °. The new dizziness history data is sequentially added and displayed while the list of the previous dizziness history data is displayed.

In addition, when a large number of the above dizziness history data are accumulated and it is desired to know the optimum value of the front-back inclination angle at which the dizziness degree rank is the lowest as a comprehensive judgment of the past multiple times of dizziness history data, an appropriate value calculation command is used. Press the button 70 to display the optimum tilt angle on the liquid crystal display screen 41. If you want to know the optimum value as the average value, press and hold the appropriate value calculation command button 70 to display the optimum tilt angle on the liquid crystal display screen 41.

In this way, the optimum value of the front-rear inclination angle of the pillow 20 can be obtained while learning sequentially, and finally the setting of the front-rear inclination angle of the pillow 20 can be changed to the optimum value. This makes it possible to obtain a sleep without dizziness.

FIG. 4 is a diagram showing the results of effect comparison with and without countermeasures for patients with benign paroxysmal head dizziness (BBPV). In the figure, the vertical axis "VAS (Visual Analogue Scale)" is a pain evaluation scale, and the degree of pain is marked on the patient on a horizontal straight line of 10 cm with an evaluation scale of 0 to 10. The method used as a pain evaluation method, in which the degree of pain is quantified based on the length of the pain, is also used here. Although VAS is a simple method, it is said to be a very sensitive pain evaluation method. It is expressed as a numerical value from 0 to 10, and the larger the value, the stronger the pain, and the smaller the value, the weaker the pain. "10" is used as the evaluation value for the worst pain that cannot be considered to be stronger than this, and "0" is used as the evaluation value for when there is no pain at all. Ask them to point and evaluate the degree of pain based on how many centimeters they are.

In FIG. 4, “head-down” means the case of going to bed with a normal pillow without intervention (without raising the anterior-posterior inclination angle of the pillow at bedtime), and head-up. ) Adjusts the inclination angle of the pillow (bet) to indirectly adjust the anterior-posterior inclination angle of the head, and the optimum value of the anterior-posterior inclination angle at which the dizziness rank is the lowest (although there are individual differences, here When the patient goes to bed with an intervention to adjust to 45 degrees), specifically, it means the case where the head goes to bed with the anterior-posterior inclination angle of the head maintained at an optimum value, for example, 45 degrees. "3m" means that the intervention period is 3 months, and "6m" means that the intervention period is 6 months. The angle of 45 degrees was maintained by using a bed angle or another substance as shown in the photograph.

In the figure, n means the number of subjects, P means the p value of the t-test, and is used to prove that the obtained difference is not a coincidence. P <0.01 means that the probability of not being a coincidence is 1%. It means that there is a significant difference. It can be seen that P <0.001 is 0.1% or less, and there is a more significant difference. Although P <0.05 is common, all of the results show that they are smaller values, which are less accidental and certainly significant differences. In particular, 0.001 is a value that can be said to be a certain effect in this study, as the two are almost certainly different in group comparison.

As a result of this time, the head-up effect was observed for about 50 subjects (the exact number is n in the figure) in each of the intervention 3 months and the intervention 6 months. At 3 months of intervention, head-up reduced the VAS value, which is a pain evaluation scale, to 6.5, which is significantly (p <0.01) lower than 8.5 when head-down. However, improvement of BBPV was observed. In addition, at 6 months of intervention, the VAS value was 4.5 (p <0.001), which was lower than that of 3 months of intervention, and the longer the intervention period, the more reliable effect was confirmed in improving BBPV.

In the above, the case where the optimum value of the anteroposterior tilt angle of the head is 45 degrees has been described as an example, but this is because some people have an optimum value of 30 degrees and some people have an optimum value of 55 degrees. It varies from person to person, but since there are many people around 45 degrees, 45 degrees is the optimum value as an average approximate value. Further, since the inclination angle of the head in the anteroposterior direction varies from person to person, the inclination angle of the bed, that is, the inclination angle from the floor can be used as a substitute for the inclination angle of the head in the anteroposterior direction.

<Modification example 1>
In the above embodiment, the pillow or a cover thereof is a wearable biosensor (measurement communication unit 30) capable of measuring the tilt angle of the head in the anteroposterior direction at bedtime and extracting the tilt angle value information of the measurement result by communication. The 3-axis acceleration sensor was used as the tilt angle sensor 3 for detecting the tilt angle of the head in the front-rear direction. However, it is also possible to separate the sensor unit that detects the anteroposterior tilt angle of the head and the arithmetic processing unit, provide a single acceleration sensor or angular acceleration sensor on the pillow cover, and provide the arithmetic processing unit inside the pillow. can. At that time, it is preferable that one acceleration sensor or the like is provided at each of the left end and the right end of the pillow cover so that the inclination angle can be measured more accurately than in the case of one.

<Modification 2>
Further, in the above embodiment, the measurement communication unit 30 is provided on the pillow or its cover, but a wearable biosensor may be attached to the chest of the patient to indirectly detect the anterior-posterior inclination angle of the head. Further, the measurement communication unit 30 may be provided on the headphone type headphone type or headphone type worn by the patient.

<Modification example 3>
In the above embodiment, the electric bed device 14 capable of raising the upper part above the waist diagonally with respect to the lower part is taken as an example, but a bed by a power source other than electricity, other bedding, etc. are used. You can also do it. In addition to a bed integrated with a chair and a backrest device consisting of only the upper part above the waist, a configuration capable of raising the upper part above the waist diagonally with respect to the lower part like the electric bed device 14. If it is (a configuration that can measure the anteroposterior angle of the head), chairs (for example, sitting chairs, sofas (chairs), reclining chairs (armchairs), wheelchairs, chairs for vehicles such as vehicles, ships, aircraft, etc.) Etc.), mattresses, examination tables, cots, etc., the present invention can also be applied.

<Other embodiments>
In the above embodiment, the anteroposterior inclination angle of the pillow 20 is obtained, and the anteroposterior inclination angle of the head is indirectly measured. The purpose is to measure the angle at which the otolith is difficult to enter into the total leg 4 of the semicircular canal, but since it cannot be measured directly, the purpose is to indirectly search for the pillow 20 or the anterior-posterior inclination angle of the head. rice field. However, as another embodiment, the upward inclination angle of the total leg portion 4 may be calculated by calculation, and the upward inclination angle may be set as a measurement target and a display target.

In the case of the other embodiment, the control means of the user terminal adds a known predetermined angle to the front-back inclination angle of the pillow to determine the angle formed by the axis of the total leg portion 4 in the trisection tube with respect to the horizontal axis. , It has an arithmetic processing unit that calculates as the tilt angle (upward tilt angle) of the total leg portion 4, and the tilt angle of the total leg portion 4 is used instead of the tilt angle in the front-rear direction of the pillow.

The present invention can be applied to a device for treatment, or as a simple and inexpensive device for a subject to use at home.

1, 2, 3 semicircular canals,
4 Total legs,
6 Utricle,
10 beds,
11 Lifting mechanism,
12 drive motor,
13 Bed tilt angle controller,
14 Electric bed device,
20 pillows,
31 Sleeping tilt angle detection sensor,
32 Measurement control unit,
33 Memory means,
34 Memory control unit,
35 Communication control unit,
36 memory,
40 user terminal,
41 Liquid crystal display screen (touch pad screen),
42 Vertigo history display area,
50 Tilt angle change button,
60 Inclination angle measurement instruction button,
61 Measurement button when awakening is good,
62 Awakening normal time measurement button,
63 Awakening uncomfortable measurement button,
70 Optimal value calculation command button,
80 clear button,
90 Control means,
91 Wireless communication means,
92 Tilt angle setting control means,
93 Tilt angle value acquisition means,
94 Memory control means,
95 History list control means,
96 Optimal value calculation means,
97 Display control means,
98 clear control means,
100 memory,
S1 ascending command signal,
S2 Down command signal,
S3 measurement instruction signal,
D1 tilt angle value information.

Claims (6)

A bed device with a bed that can tilt the pillow back and forth,
A tilt control means for tilting and controlling the bed to a preferred tilt angle of the user, and
A measuring means for measuring the front-back inclination angle of the pillow from the inclination angle of the bed or the inclination angle of the pillow.
A measurement-side communication means capable of transmitting tilt angle value information based on the measurement result of the measurement means, and a communication means on the measurement side.
A user terminal having a terminal-side communication means connected to the measurement-side communication means by a wired or wireless communication line and capable of receiving the tilt angle value information.
It is a dizziness prevention system equipped with
The user terminal is
The degree of dizziness is divided into a plurality of dizziness ranks, and a plurality of rank determination operating means provided corresponding to each of the dizziness ranks, and
Based on the operation of one of the plurality of rank determination operating means, the tilt angle value information relating to the current tilt angle in the front-rear direction is acquired from the measuring means through the terminal-side communication means and the measurement-side communication means. How to get and
The dizziness history data is obtained by associating at least the tilt angle value information acquired from the acquisition means with the dizziness rank information related to the operated rank determining operation means among the plurality of dizziness ranks. As a memory control means to store in memory as
A display means capable of displaying information on the dizziness history data and
It has a display control means capable of controlling the display means.
A dizziness prevention system characterized by this. The user terminal is
It further has an operating means for changing the tilt angle, which is configured to be operable by the user and is configured to be able to set the tilt angle in the front-rear direction of the user's preference.
The terminal-side communication means
The tilt angle setting information transmitting means for transmitting the tilt angle setting information to the tilt control means based on the operation of the tilt angle changing operating means is included.
The tilt control means
Based on the tilt angle setting information from the user terminal, tilt control for the bed device is executed.
The dizziness prevention system according to claim 1. The dizziness history data is
Data in which the tilt angle value information acquired from the acquisition means, the dizziness rank information related to the operated rank determination operation means among the plurality of dizziness ranks, and the measurement date information are associated with each other. Configured
The display control means
As the information related to the dizziness history data, at least the dizziness rank information corresponding to the measurement date can be displayed on the display means.
The dizziness prevention system according to claim 1 or 2. The user terminal is
Operation means for optimal value calculation command that can be operated by the user,
When the operation means for the optimum value calculation command is operated, the optimum value calculation for calculating the optimum value of the front-back inclination angle at which the dizziness degree rank is lowered based on the past multiple times of dizziness history data stored in the memory. With more means
The display control means
Information about the optimum value can be displayed on the display means.
The dizziness prevention system according to any one of claims 1 to 3. The user terminal is
Operation means for optimal value calculation command that can be operated by the user,
When the operation means for the optimum value calculation command is operated, among the past multiple times of dizziness history data stored in the memory, the average value of the anteroposterior tilt angle related to the dizziness rank information having a low dizziness rank is calculated. It also has an optimum value calculation means for calculating as an optimum value.
The display control means
Information about the optimum value can be displayed on the display means.
The dizziness prevention system according to any one of claims 1 to 3. The dizziness prevention system according to any one of claims 1 to 5, wherein the measuring means and the measuring side communication means are configured as a measuring communication unit and are provided on the pillow or the bed.

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