WO2018100755A1

WO2018100755A1 - Biological information measurement device, biological information measurement method, and biological information measurement system

Info

Publication number: WO2018100755A1
Application number: PCT/JP2017/006411
Authority: WO
Inventors: 安島　弘美
Original assignee: 京セラ株式会社
Priority date: 2016-11-30
Filing date: 2017-02-21
Publication date: 2018-06-07

Abstract

A biological information measurement device 1 comprises a gyro sensor 12 that detects fluctuations in the torso of a user, and a controller 10 that performs a process of measuring biological information of the user on the basis of the fluctuations detected once the biological information measurement device 1 is being pressed against the torso of the user.

Description

Biological information measuring device, biological information measuring method, and biological information measuring system

Cross-reference of related applications

This application claims the priority of Japanese Patent Application No. 2016-233300 (filed on Nov. 30, 2016) and Japanese Patent Application No. 2017-011248 (filed on Jan. 25, 2017). The entire disclosure of the application is hereby incorporated by reference.

The present disclosure relates to a biological information measuring device, a biological information measuring method, and a biological information measuring system.

Conventionally, electronic devices that measure biological information from a test site such as a wrist of a test subject are known. For example, Patent Document 1 describes an electronic device that measures the pulse of a subject when the subject wears the wrist.

JP 2002-360530 A

The biological information measuring device according to one aspect includes a gyro sensor and a controller. The gyro sensor detects a change in a user's torso. The controller performs a measurement process of the user's biological information based on the change detected in a state where the biological information measuring device is pressed against the trunk.

The biological information measuring method according to one aspect is a biological information measuring method by a biological information measuring device including a gyro sensor, and includes a detecting step and a measurement process. The detecting step detects the fluctuation of the trunk with the gyro sensor in a state where the biological information measuring device is pressed against the trunk of the user. The step of performing the measurement process performs a measurement process of the user's biological information based on the variation detected in the state.

The biological information measurement system according to one aspect includes a first device and a second device. The first device includes a gyro sensor that detects a change in the body while the first device is pressed against a user's body. The second device includes a controller that performs a measurement process of the user's biological information based on the variation detected in the state.

It is a functional block diagram showing a schematic structure of a living body information measuring device concerning a 1st embodiment of this indication. It is a schematic perspective view which shows the external appearance of the biological information measuring device which concerns on 1st Embodiment. It is a schematic perspective view which shows the external appearance of the biological information measuring device which concerns on 1st Embodiment. It is a figure which shows roughly the aorta in a human body. It is a figure which shows an example of the contact state of the to-be-tested part and contact part in 1st Embodiment. It is a figure which shows the usage condition of the biological information measuring device which concerns on 1st Embodiment. It is a figure which shows the usage condition of the biological information measuring device which concerns on 1st Embodiment. It is a schematic diagram for demonstrating the measurement process of the pulse wave by the biological information measuring device of FIG. It is a flowchart which shows the procedure of the measurement process of the pulse wave by the biometric information measuring apparatus of FIG. It is a figure which shows an example of the pulse wave acquired with the sensor. It is a figure which shows the time fluctuation | variation of calculated AI. It is a figure which shows the measurement result of calculated AI and a blood glucose level. It is a figure which shows the relationship between calculated AI and a blood glucose level. It is a figure which shows the measurement result of calculated AI and a triglyceride value. It is a flowchart which shows the procedure which estimates the fluidity | liquidity of blood, and the state of glucose metabolism and lipid metabolism. It is a figure which shows the usage condition of the biological information measuring device which concerns on 1st Embodiment. It is a mimetic diagram showing a schematic structure of a living body information measuring system concerning a 1st embodiment. It is a functional block diagram which shows schematic structure of the portable terminal device which concerns on 2nd Embodiment of this indication. It is a schematic perspective view which shows the external appearance of the portable terminal device which concerns on 2nd Embodiment. It is a figure which shows an example of the contact state of the to-be-tested part and contact part in 2nd Embodiment. It is a figure which shows the usage condition of the portable terminal device which concerns on 2nd Embodiment. It is a figure which shows the usage condition of the portable terminal device which concerns on 2nd Embodiment.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings.

(First embodiment)
FIG. 1 is a functional block diagram showing a schematic configuration of the biological information measuring apparatus according to the first embodiment. As shown in FIG. 1, the biological information measuring apparatus 1 includes a controller 10, a power supply unit 11, a gyro sensor 12, a display unit 14, an audio output unit 16, a communication unit 17, a vibrator 18, and a storage unit. 20.

The controller 10 includes a processor that controls and manages the entire biological information measuring apparatus 1 including each functional block of the biological information measuring apparatus 1. The controller 10 includes a processor such as a CPU (Central Processing Unit) that executes a program defining a control procedure and a program for measuring biological information of a subject. Such a program is stored in a storage medium such as the storage unit 20, for example.

The power supply unit 11 includes a battery and supplies power to each unit of the biological information measuring apparatus 1. The biological information measuring device 1 is supplied with electric power from the power supply unit 11 or an external power supply during operation.

The gyro sensor 12 detects the displacement of the biological information measuring device 1 as a motion factor by detecting the angular velocity of the biological information measuring device 1. The gyro sensor 12 is, for example, a three-axis vibration gyro sensor that detects an angular velocity from deformation of a structure due to Coriolis force acting on a vibrating arm. Here, this structure may be made of a piezoelectric material such as quartz or piezoelectric ceramic. The gyro sensor 12 may be formed by MEMS (Micro Electro Mechanical Systems) technology using the structure as a material such as silicon. The gyro sensor 12 may be another type of gyro sensor such as an optical gyro sensor. The controller 10 can measure the orientation of the biological information measuring device 1 by integrating the angular velocity acquired by the gyro sensor 12 with respect to time.

The gyro sensor 12 is an angular velocity sensor, for example. However, the gyro sensor 12 is not limited to the angular velocity sensor. The gyro sensor 12 only needs to detect the angular displacement of the biological information measuring apparatus 1 that is a motion factor. The motion factor detected by the gyro sensor 12 is transmitted to the controller 10.

The controller 10 acquires a motion factor from the gyro sensor 12. The motion factor includes an index indicating the displacement of the biological information measuring device 1 based on the pulsation at the subject site of the subject. The controller 10 generates a pulsation of the subject based on the motion factor. The controller 10 measures biological information based on the subject's pulsation. Details of the measurement processing of biological information by the controller 10 will be described later.

The display unit 14 includes a display device such as a liquid crystal display, an organic EL panel (Organic Electro-Luminescence Panel), or an inorganic EL panel (Inorganic Electro-Luminescence panel). The display unit 14 displays characters, images, symbols, graphics, and the like. The display unit 14 may be configured with a touch screen display including not only a display function but also a touch screen function. In this case, the touch screen detects contact of the user's finger or stylus pen. The touch screen can detect a position where a plurality of fingers, a stylus pen, or the like touches the touch screen. The touch screen detection method may be any method such as a capacitance method, a resistive film method, a surface acoustic wave method (or an ultrasonic method), an infrared method, an electromagnetic induction method, and a load detection method. In the capacitive method, contact and approach of a finger or a stylus pen can be detected.

The voice output unit 16 notifies the user or the like by outputting sound. The audio output unit 16 can be configured with an arbitrary speaker or the like. The sound output unit 16 outputs the sound signal transmitted from the controller 10 as sound.

The communication unit 17 transmits and receives various data by performing wired communication or wireless communication with an external device. The communication unit 17 can transmit, for example, a measurement result of biological information measured by the biological information measuring device 1 to an external device. Moreover, the communication part 17 can also communicate with the external device which memorize | stores a subject's biometric information, in order to manage a health condition.

The vibrator 18 informs the user and the like by generating vibration and the like. The vibrator 18 presents a tactile sensation to the user of the biological information measuring device 1 by generating vibration or the like at an arbitrary part of the biological information measuring device 1. As long as the vibrator 18 generates vibration, an arbitrary member such as an eccentric motor, a piezoelectric element (piezo element), or a linear vibrator can be employed.

The storage unit 20 stores various programs and data including application programs. The storage unit 20 may include any non-transitory storage medium such as a semiconductor storage medium and a magnetic storage medium. The storage unit 20 may include a plurality of types of storage media. The storage unit 20 may include a combination of a portable storage medium such as a memory card, an optical disk, or a magneto-optical disk and a storage medium reader. The storage unit 20 may include a storage device used as a temporary storage area such as a RAM (Random Access Memory). The storage unit 20 stores various information and programs for operating the biological information measuring apparatus 1 and also functions as a work memory. The storage unit 20 may store, for example, data detected by the gyro sensor 12 and measurement results of biological information.

The biological information measuring apparatus 1 according to an embodiment of the present disclosure is not limited to the configuration illustrated in FIG. The biological information measuring apparatus 1 according to an embodiment includes a controller 10 and a gyro sensor 12. Therefore, in the biological information measuring apparatus 1 according to the embodiment, other components other than the controller 10 and the gyro sensor 12 may be omitted as appropriate, or other components may be added as necessary.

The biological information measuring apparatus 1 measures biological information at a test site of a subject. As will be described later, the test site may be, for example, the body of a test subject (user of the biological information measuring device 1). The biological information measuring apparatus 1 measures the biological information of the subject based on the fluctuation of the trunk that is the subject site.

The biological information measured by the biological information measuring device 1 includes, for example, at least one of a blood component, a pulse wave, a pulse, and a pulse wave propagation velocity. The blood component includes, for example, a state of sugar metabolism and a state of lipid metabolism. The state of glucose metabolism includes, for example, blood glucose level. The state of lipid metabolism includes, for example, a lipid value. Lipid levels include neutral fat, total cholesterol, HDL (High Density Lipoprotein) cholesterol, LDL (Low Density Lipoprotein) cholesterol, and the like. The biological information measuring apparatus 1 acquires, for example, a subject's pulse wave as biological information, and measures biological information such as blood components based on the acquired pulse wave.

FIG. 2 is a schematic perspective view showing an appearance of the biological information measuring apparatus 1 according to an embodiment. The biological information measuring device 1 according to an embodiment can be configured as a relatively small dedicated terminal device, for example, as shown in FIG. However, the biological information measuring device 1 is not limited to a dedicated terminal device. For example, the biological information measuring device 1 may be incorporated in any other electronic device.

FIG. 2A is a diagram showing the front side of the biological information measuring apparatus 1. FIG. 2B is a diagram showing the back side of the biological information measuring device 1, that is, a diagram showing a state in which the biological information measuring device 1 shown in FIG.

As shown in FIG. 2, the biological information measuring apparatus 1 includes a housing 30 whose external shape is substantially rectangular. As shown in FIG. 2A, the biological information measuring apparatus 1 includes a display unit 14 and an audio output unit 16 on the front side. The display unit 14 displays information related to the measurement process of the biological information measuring device 1. In addition, the display unit 14 may display information such as time. The audio output unit 16 outputs a sound when the biological information measuring device 1 starts measuring biological information or when the measurement is completed, and notifies the user that the measurement is started or completed. Moreover, the audio | voice output part 16 may output the sound for alert | reporting to a user that the measurement is continuing. In addition, the biological information measuring apparatus 1 may include a switch such as a button for starting measurement of biological information.

As shown in FIG. 2 (B), the biological information measuring apparatus 1 has a contact part 40 and a support part 50 on the back side. In the example shown in FIG. 2B, the contact portion 40 and the support portion 50 form a plane that is substantially the same as the back surface of the housing 30. However, at least one of the contact portion 40 and the support portion 50 may be a member protruding from the back side of the housing 30. As shown in FIG. 2B, the contact portion 40 and the support portion 50 are fixed to the biological information measuring device 1 on the back surface of the housing 30. At least one of the contact part 40 and the support part 50 may be provided so as not to be detachable from the biological information measuring device 1, for example. At least one of the contact part 40 and the support part 50 may be configured to be detachable from the biological information measuring apparatus 1, for example.

The contact portion 40 and the support portion 50 are fixed on the back side of the housing 30 so as to extend linearly along the short side direction of the back surface. The length of the contact portion 40 and the support portion 50 in the short side direction of the back surface of the housing 30 may be shorter than the length of the short side of the back surface of the housing 30, for example. Further, the length relationship between the contact portion 40 and the support portion 50 in the short side direction of the back surface of the housing 30 can be determined as appropriate. For example, the length of the contact portion 40 in the short side direction on the back surface of the housing 30 may be shorter or longer than the length of the support portion 50 in the short side direction on the back surface of the housing 30. Further, the length of the contact portion 40 in the short side direction on the back surface of the housing 30 and the length of the support portion 50 in the short side direction on the back surface of the housing 30 may be the same.

The abutting portion 40 abuts on the test site when the biological information is measured by the biological information measuring device 1. That is, the contact part 40 contacts the torso of the subject or the periphery thereof, for example, when measuring biological information. In addition, as shown in FIG. 2B, the gyro sensor 12 is attached to the back side of the contact portion 40. In the example shown in FIG. 2B, since the gyro sensor 12 is installed inside the housing 30, the gyro sensor 12 is indicated by a broken line. The contact part 40 and the gyro sensor 12 may be configured as separate members, or may be configured as one and the same member.

The support unit 50 contacts the subject at a position different from the contact unit 40 when the biological information is measured by the biological information measuring device 1. The support part 50 contacts the subject's torso at a position different from the contact part 40, for example. The support part 50 supports the contact state of the contact part 40 with respect to the test site by contacting the subject. The biological information measuring apparatus 1 may include a plurality of support parts 50. The plurality of support parts 50 are arranged in a straight line, for example. The contact portion 40 and the support portion 50 (and the housing 30) are configured so that the variation of the test portion that contacts the contact portion 40 is appropriately transmitted to the gyro sensor 12. Details of the contact mode of the contact portion 40 and the support portion 50 to the test site will be described later.

The biological information measuring apparatus 1 according to an embodiment of the present disclosure is not limited to the structure shown in FIG. As described above, in the biological information measuring apparatus 1 according to an embodiment, other components other than the controller 10 and the gyro sensor 12 may be omitted or other components may be added as necessary. Good.

For example, as shown in FIG. 3, a belt 60 or a waistband 62 may be provided to fix the biological information measuring apparatus 1 to the user's torso. In FIG. 3, only a part of the belt 60 or the waistband 62 is shown, and the other parts are omitted. Actually, the belt 60 or the waistband 62 is made long enough to be wound around the user's torso. FIG. 3A shows a state in which a belt 60 or a waistband 62 is attached to the biological information measuring apparatus 1 shown in FIG. FIG. 3B shows a state where the belt 60 or the waistband 62 is attached to the biological information measuring device 1 shown in FIG.

When measuring biological information using the biological information measuring apparatus 1 shown in FIG. 2, it is necessary for the subject himself / herself to fix the biological information measuring apparatus 1 to the body of the subject using his / her hand. On the other hand, when measuring biological information using the biological information measuring device 1 shown in FIG. 3, the biological information measuring device 1 may be fixed to the body of the subject using the belt 60 or the waistband 62. it can. Therefore, in this case, it is not necessary for the subject himself / herself to fix the biological information measuring device 1 to the torso of the subject using his / her hand. A mode in which the biological information measuring apparatus 1 is fixed to the body of the subject using the belt 60 or the waistband 62 will be described later.

Next, a measurement process of biological information by the biological information measuring apparatus 1 will be described. The biological information measuring device 1 acquires a motion factor in a state where the contact portion 40 fixed to the biological information measuring device 1 is in contact with the test site, and measures the biological information based on the acquired motion factor. The biological information measuring apparatus 1 may acquire the motion factor in a state where the support unit 50 fixed to the biological information measuring apparatus 1 is in contact with the subject at a position different from the test site.

In measuring biological information, the biological information measuring apparatus 1 is in a state where measurement processing of biological information can be performed based on, for example, an input operation by a subject. The state in which measurement processing of biological information is possible refers to a state in which an application for measuring biological information is activated, for example. The subject makes measurement processing of biological information possible and starts acquisition of a motion factor by the biological information measuring device 1.

Next, the principle by which the biological information measuring device 1 measures the user's biological information will be further described. The biological information measuring device 1 measures biological information based on the fluctuation of the user's torso. FIG. 4 is a diagram schematically showing the structure in the human body. FIG. 4 schematically shows the internal structure of a part of the human body. FIG. 4 also schematically shows in particular a part of the heart and aorta in the human body.

The blood in the human body is delivered from the heart and then supplied to each part of the human body via blood vessels. As shown in FIG. 4, in the human body, a part of blood delivered from the heart passes through the thoracic aorta and then passes through the abdominal aorta. When blood is delivered from the heart to the thoracic or abdominal aorta, these blood vessels undergo fluctuations such as contraction. Such fluctuations propagate through the user's body and also fluctuate the user's torso. Therefore, the gyro sensor 12 can detect the fluctuation of the user's torso while the biological information measuring device 1 is pressed against the torso including the chest or abdomen of the user. In this way, the gyro sensor 12 detects a motion factor resulting from a change in the user's torso.

FIG. 5 is a diagram illustrating an example of a motion factor acquisition mode by the biological information measuring apparatus 1.

5A and 5B show a cross section of a part including the aorta in a living body such as a human body. 5A and 5B show a state in which the back side of the housing 30 of the biological information measuring device 1 shown in FIG. 2 is in contact with the test site of the living body. Therefore, as shown in FIGS. 5A and 5B, the contact part 40 and the support part 50 are in contact with the test site on the surface of the living body (skin). Here, in one embodiment, the test site on the surface of the living body is the torso of the user. Further, the aorta shown in FIGS. 5A and 5B may be the thoracic aorta shown in FIG. 4 or the abdominal aorta.

As shown in FIGS. 5 (A) and 5 (B), the subject presses the biological information measuring device 1 against the trunk and causes the biological information measuring device 1 to acquire a motion factor. As shown in FIGS. 5 (A) and 5 (B), in the contact state between the biological information measuring device 1 and the user's torso, the contact portion 40 contacts the test site. 5A and 5B, in the motion factor acquisition state by the biological information measuring device 1, the support unit 50 is located at a position different from the contact unit 40, and the torso of the subject. Abut.

As shown in FIGS. 5A and 5B, when the biological information measuring device 1 is pressed in the direction of the arrow P at the position of the arrow P and brought into contact with the trunk, the biological information measuring device 1 It is displaced according to the movement of the expansion and contraction of the blood vessel based on the pulsation of the subject. The biological information measuring device 1 is not pressed in the direction of the arrow P in the side view as shown by the arrow Q in FIGS. 5A and 5B with the support portion 50 that contacts the body as a fulcrum. Displace so that the upper end side rotates. Such a displacement is usually a vibration-like displacement in which the reciprocation of a partial rotational motion is repeated. The gyro sensor 12 included in the biological information measuring device 1 acquires the pulse wave of the subject by detecting the displacement of the biological information measuring device 1. The pulse wave is obtained by capturing a change in the volume of the blood vessel caused by the inflow of blood as a waveform from the body surface.

As described above, in the biological information measuring apparatus 1 according to the embodiment, the gyro sensor 12 detects a motion factor due to the fluctuation of the user's torso. The gyro sensor 12 detects a motion factor caused by the fluctuation of the user's torso in a state where the biological information measuring apparatus 1 is pressed against the user's torso. The controller 10 performs measurement processing of the user's biological information based on the motion factor detected by the gyro sensor 12 in this way.

Here, the user's torso may include the user's abdomen or chest. Moreover, although the fluctuation | variation of a user's trunk | drum showed the example of the fluctuation | variation produced by a user's blood vessel movement in FIG. 5 (A) and FIG. The fluctuation of the user's torso may include not only the fluctuation caused by the movement of the user's blood vessel but also at least one of the fluctuation caused by the user's breathing and the fluctuation caused by the user's body movement. The user's blood vessel may also include the user's aorta. The user's aorta may include at least one of the user's abdominal aorta and thoracic aorta. In large blood vessels such as the aorta, a large amount of blood constantly flows. Therefore, the biological information measuring apparatus 1 can measure biological information stably with high accuracy by using the user's aorta as a measurement target.

Also, as shown in FIG. 5B, the gyro sensor 12 is pressed against the user's torso via the elastic member 19, so that it becomes easy to follow the fluctuation of the user's torso. Therefore, the biological information measuring device 1 can measure biological information stably with high accuracy. Here, the elastic member 19 may be any member that generates an elastic force, such as a spring, rubber, flexible resin, one using hydraulic pressure, one using air pressure, one using water pressure, or the like. is there. The support portion 50 shown in FIG. 5B connects the housing on which the gyro sensor 12 is installed and the housing on which the gyro sensor 12 is not installed. As shown in FIG. 5B, the housing on which the gyro sensor 12 is installed has a mechanism that is movable around the support portion 50 relative to the housing on which the gyro sensor 12 is not installed. Yes.

The biological information measuring apparatus 1 includes the gyro sensor 12 so that the user can measure biological information from above the clothes while wearing the clothes. That is, according to the biological information measuring device 1, the user does not need to undress when measuring biological information. Moreover, according to the biological information measuring device 1, the user does not need to touch the measuring device directly to the skin. For this reason, according to the biological information measuring device 1, measurement of biological information can be performed easily.

The conventional acceleration sensor is not suitable for use as a pulse wave sensor because of its large noise. In particular, a small acceleration sensor built into a device such as a small terminal is not common when measuring low frequencies around 1 Hz, such as pulse waves and respiration. Usually, a large acceleration sensor is required for such purposes.

On the other hand, in the biological information measuring apparatus 1, the gyro sensor 12 is used for measuring biological information. A gyro sensor generally has little noise during measurement. Since the gyro sensor constantly vibrates (in the case of the vibration type gyro sensor), noise can be reduced due to the structure. Moreover, in the biological information measuring device 1 according to the embodiment, the gyro sensor 12 that can be incorporated in the small housing 30 can be employed.

Next, a usage mode of the biological information measuring apparatus 1 according to an embodiment will be described. FIG. 6 is a diagram illustrating an example of measuring biological information using the biological information measuring apparatus 1. In FIG. 6, the gyro sensor 12 built in the biological information measuring apparatus 1 is indicated by a broken line.

FIG. 6 (A) shows an example using the biological information measuring apparatus 1 without the belt 60 or the waistband 62 as shown in FIG. As shown in FIG. 6A, when the biological information measuring apparatus 1 does not have the belt 60 or the waistband 62, the user himself / herself uses the hand or the like to cover the contact portion 40 of the biological information measuring apparatus 1. Biometric information is measured by pressing against the test site.

When the biological information measuring apparatus 1 is pressed using a hand or the like, the position of the gyro sensor 12 is pressed so that the gyro sensor 12 can detect the movement of the blood vessel satisfactorily as shown in FIG. It may not be possible. In this case, a position where the gyro sensor 12 is not provided, that is, the vicinity of the lower end of the biological information measuring apparatus 1 shown in FIG. On the back side in the vicinity of the lower end of the biological information measuring apparatus 1 shown in FIG. 2 (A), there is a support portion 50 shown in FIG. 2 (B).

When the biological information measuring device 1 is pressed using a hand or the like, the user can freely change the test site with which the contact portion 40 of the biological information measuring device 1 contacts. For example, the biological information measuring device 1 may be moved to the upper body side to make it easier to detect the movement of the thoracic aorta. Further, for example, the biological information measuring device 1 may be moved to the lower body side to make it easier to detect the movement of the abdominal aorta. Thus, the user of the biological information measuring device 1 can search for the position of the test site where the biological information can be measured satisfactorily and can measure the biological information with high accuracy.

FIG. 6B shows an example using the biological information measuring apparatus 1 on which the belt 60 or the waistband 62 as shown in FIG. 3 is attached. As shown in FIG. 6B, when the biological information measuring device 1 has the belt 60 or the waistband 62, the user himself / herself covers the contact portion 40 of the biological information measuring device 1 when measuring the biological information. There is no need to press against the test site. Further, in this case, the user adjusts the position where the belt 60 or the waistband 62 presses against the biological information measuring device 1, so that the test site where the contact portion 40 of the biological information measuring device 1 comes into contact is adjusted to some extent. Can be changed. Therefore, the user of the biological information measuring device 1 can search for the position of the test site where the measurement of the biological information can be satisfactorily performed and measure the biological information with high accuracy.

Thus, in one embodiment, a part of the biological information measuring device 1 is pressed against the user's torso, and at least a part other than a part of the biological information measuring device 1 is a belt 60 of the user's clothes. Alternatively, it may be pressed against the waistband 62. In such a state, the gyro sensor 12 may detect a motion factor. The controller 10 may perform a measurement process based on the motion factor thus detected.

FIG. 6C shows an example in which the biological information measuring apparatus 1 shown in FIG. In the example shown in FIG. 6C, it becomes easier to detect the movement of the abdominal aorta than in the examples shown in FIGS. 6A and 6B. In this case, when measuring the biological information, the user presses the contact portion 40 of the biological information measuring device 1 against the test site using a hand or the like, or using the belt 60 or the waistband 62. .

Thus, in one embodiment, a part of the biological information measuring device 1 is pressed against the lower abdomen side of the user's torso, and at least a part other than a part of the biological information measuring device 1 is on the lower abdomen side. Rather, it may be pressed against the head side of the user's torso. In such a state, the gyro sensor 12 may detect a motion factor. The controller 10 may perform a measurement process based on the motion factor thus detected.

FIG. 7 is a diagram showing another example of measuring biological information using the body information measuring apparatus 1 as in FIG. Also in FIG. 7, the gyro sensor 12 built in the biological information measuring apparatus 1 is indicated by a broken line.

As shown in FIG. 7A, the biological information may be measured with the body information measuring device 1 in the horizontal direction. In the state shown in FIG. 7A, when the biological information measuring apparatus 1 is pressed using a hand or the like, the position of the gyro sensor 12 is pressed so that the gyro sensor 12 can detect the movement of the blood vessel satisfactorily. It may not be possible. In this case, the position where the gyro sensor 12 is not present, that is, the vicinity of the end of the biological information measuring device 1 on the side where the support unit 50 exists may be pressed using a hand or the like. In this case, since the gyro sensor 12 is close to the center line M of the torso, the movement of the thoracic aorta or the abdominal aorta can be detected well.

Further, as shown in FIG. 7B, the orientation of the body information measuring device 1 may be reversed from the case shown in FIG. 7A. In this case, the gyro sensor 12 contacts the side surface of the trunk, that is, the vicinity of the flank. In this case, the position where the gyro sensor 12 is not provided, that is, the vicinity of the end of the biological information measuring device 1 on the side where the support unit 50 exists may be pressed using a hand or the like.

Thus, in one embodiment, a part of living body information measuring device 1 is pressed against the side of a user's torso, and at least a part other than a part of living body information measuring device 1 is a user's torso. It may be pressed against the center M side of the trunk rather than the side surface of the body. In such a state, the gyro sensor 12 may detect a motion factor. The controller 10 may perform a measurement process based on the motion factor thus detected.

The biological information measuring apparatus 1 performs a pulse wave measurement process in a state in which the contact portion 40 is in contact with the test site. FIG. 8 is a schematic diagram for explaining a pulse wave measurement process by the biological information measuring apparatus 1. FIG. 9 is a flowchart showing the procedure of pulse wave measurement processing by the biological information measuring apparatus 1. In FIG. 8, the horizontal axis represents time, and the vertical axis schematically represents the output (rad / second) based on the pulse wave of the angular velocity sensor that is the gyro sensor 12. In FIG. 8, the output of the angular velocity sensor shows only the peak of each pulse wave.

A subject at time t _0, and performs a predetermined input operation for starting the pulse wave measurement processing on the biometric information measuring apparatus 1. In other words, it is assumed that the biological information measuring apparatus 1 is ready to perform the biological information measurement process at time t ₀ and starts the pulse wave measurement process. After performing a predetermined input operation for starting the pulse wave measurement process, the subject brings the contact portion 40 into contact with the test site as shown in FIG.

In the biological information measuring apparatus 1, when the controller 10 starts the pulse wave measurement process, the controller 10 detects the output of the gyro sensor 12 according to the blood vessel pulsation of the subject. During a predetermined period immediately after the start of measurement (from time t ₀ to time t ₁ in FIG. 8), the output of the gyro sensor 12 is adjusted, for example, by adjusting the position where the subject contacts the contact portion 40 with the site to be examined. Not stable. During this period, the pulse wave cannot be acquired accurately. Therefore, the biological information measuring apparatus 1 does not have to use the pulse wave measured during this period, for example, for measuring blood components that are biological information. For example, the biological information measuring apparatus 1 may not store the pulse wave measured during this period in the storage unit 20.

After starting the pulse wave measurement process, the controller 10 determines whether or not a stable pulse wave has been detected for a predetermined number of times (step S101 in FIG. 9). The predetermined number of times is four in the example shown in FIG. 8, but is not limited to this. A stable pulse wave is a pulse wave in which, for example, variations in peak output of each pulse wave and / or variations in intervals between peaks of each pulse wave are within a predetermined error range. The predetermined error range in the interval between peaks is, for example, ± 150 msec, but is not limited thereto. In the example shown in FIG. 8, an example is shown in which the controller 10 detects a pulse wave in which the variation in the interval between the peaks of each pulse wave is within four consecutive times within ± 150 msec from time t ₁ to time t _2. ing.

If the controller 10 determines that a stable pulse wave has been detected for a predetermined number of times after the start of the pulse wave measurement process (Yes in step S101 in FIG. 9), the controller 10 starts acquiring the pulse wave (step S102). That is, the controller 10 acquires a pulse wave used for measuring a blood component. Pulse wave acquisition start time is the time t ₃ in FIG. 8, for example. The controller 10 may store the pulse wave acquired in this way in the storage unit 20. Since the biological information measuring apparatus 1 starts acquiring pulse waves when it is determined that a stable pulse wave has been detected for a predetermined number of times in this manner, the subject actually touches the biological information measuring apparatus 1. This makes it easier to prevent erroneous detection in the case of not doing so.

After starting the acquisition of the pulse wave, the controller 10 ends the acquisition of the pulse wave when the pulse wave acquisition end condition is satisfied. The end condition may be, for example, a case where a predetermined time has elapsed after starting the acquisition of the pulse wave. The end condition may be, for example, a case where pulse waves for a predetermined pulse rate are acquired. The termination condition is not limited to this, and other conditions may be set as appropriate. In the example shown in FIG. 8, the controller 10, from the time t ₃ a predetermined time (e.g. 8 seconds or 15 seconds) to end the acquisition of the pulse wave at the time t ₄ after the passage. As a result, the flow shown in FIG. 9 ends.

If the controller 10 determines that a stable pulse wave has not been detected continuously a predetermined number of times after the start of the pulse wave measurement process (No in step S101 in FIG. 9), the controller 10 starts the pulse wave measurement process. It is determined whether or not a predetermined time has elapsed since the predetermined input operation was performed (step S103).

When the controller 10 determines that a predetermined time (for example, 30 seconds) has not elapsed since the predetermined input operation for starting the pulse wave measurement process has been performed (No in step S103), the flow illustrated in FIG. The process proceeds to S101.

On the other hand, if the controller 10 cannot detect a stable pulse wave even after a predetermined time has elapsed after performing a predetermined input operation for starting the pulse wave measurement process (Yes in step S103), the measurement process is automatically performed. Is terminated (timed out), and the flow of FIG. 9 is terminated.

FIG. 10 is a diagram illustrating an example of a pulse wave acquired at a test site (body) using the biological information measuring apparatus 1. FIG. 10 shows a case where the gyro sensor 12 is used as a pulsation detecting means. FIG. 10 is obtained by integrating the angular velocities acquired by the angular velocity sensor that is the gyro sensor 12. In FIG. 10, the horizontal axis represents time, and the vertical axis represents angle. Since the acquired pulse wave may include noise caused by the body movement of the subject, for example, correction by a filter that removes a DC (Direct Current) component may be performed to extract only the pulsation component.

The biological information measuring apparatus 1 calculates an index based on the pulse wave from the acquired pulse wave, and measures a blood component using the index based on the pulse wave. A method of calculating an index based on the pulse wave from the acquired pulse wave will be described with reference to FIG. The propagation of the pulse wave is a phenomenon in which the pulsation caused by the blood pushed out of the heart is transmitted through the wall of the artery or the blood. The pulsation caused by the blood pushed out of the heart reaches the periphery of the limb as a forward wave, and a part of the pulsation is reflected by the branching portion of the blood vessel, the blood vessel diameter changing portion, etc., and returns as a reflected wave. The index based on the pulse wave includes, for example, the pulse wave propagation velocity PWV (Pulse Wave Velocity) of the forward wave, the magnitude PR of the reflected wave of the pulse wave, the time difference Δt between the forward wave and the reflected wave of the pulse wave, and the forward wave wave AI (Augmentation Index) expressed by the ratio of the magnitude of the wave and the reflected wave.

The pulse wave shown in FIG. 10 is a user's n pulses, and n is an integer of 1 or more. The pulse wave is a composite wave in which a forward wave generated by ejection of blood from the heart and a reflected wave generated from a blood vessel branch or a blood vessel diameter changing portion overlap. In FIG. 10, P _Fn is the magnitude of the peak of the pulse wave due to the forward wave of each pulse, P _Rn is the peak of the pulse wave due to the reflection wave of each pulse magnitude, P _Sn is the minimum value of the pulse wave for each pulse is there. In FIG. 10, _TPR is the interval between pulse peaks.

The index based on the pulse wave includes a quantified information obtained from the pulse wave. For example, PWV, which is one of indices based on pulse waves, is calculated based on the difference in propagation time of pulse waves measured at two test sites such as the upper arm and ankle and the distance between the two points. Specifically, PWV is acquired by synchronizing pulse waves (for example, the upper arm and ankle) at two points in the artery, and the difference in distance (L) between the two points is divided by the time difference (PTT) between the two points. Is calculated. For example, the reflected wave which is an index based on the pulse wave magnitude P _R may calculate the magnitude of P _Rn of the peak of the pulse wave due to the reflected wave, the P _Rave averaged n times amount It may be calculated. For example, the time difference Δt between the forward wave and the reflected wave of the pulse wave, which is one of the indicators based on the pulse wave, may be calculated as a time difference Δt _n in a predetermined pulse, or Δt obtained by averaging n time differences. You may calculate _ave . For example, AI, which is one of indices based on pulse waves, is obtained by dividing the magnitude of the reflected wave by the magnitude of the forward wave, and AI _n = (P _Rn −P _Sn ) / (P _Fn −P _Sn ). AI _n is the AI for each pulse. For example, AI may measure the pulse wave for several seconds, calculate an average value AI _ave of AI _n (n = 1 to n) for each pulse, and use it as an index based on the pulse wave.

The pulse wave velocity PWV, the magnitude of the reflected wave P _R , the time difference Δt between the forward wave and the reflected wave, and AI change depending on the hardness of the blood vessel wall, and therefore are used to estimate the state of arteriosclerosis. Can do. For example, if the blood vessel wall is hard, the pulse wave propagation speed PWV increases. For example, the vessel wall rigid, size P _R of the reflected wave increases. For example, if the blood vessel wall is hard, the time difference Δt between the forward wave and the reflected wave becomes small. For example, if the blood vessel wall is hard, AI increases. Furthermore, the biological information measuring apparatus 1 can estimate the state of arteriosclerosis and the blood fluidity (viscosity) using an index based on these pulse waves. In particular, the biological information measuring apparatus 1 uses the change of the index based on the pulse wave acquired in the same subject site of the same subject and the period when the arteriosclerosis state does not substantially change (for example, within several days). Changes in fluidity can be estimated. Here, the blood fluidity indicates the ease of blood flow. For example, when the blood fluidity is low, the pulse wave propagation velocity PWV is small. For example, the low fluidity of the blood, the size P _R of the reflected wave is reduced. For example, when the blood fluidity is low, the time difference Δt between the forward wave and the reflected wave becomes large. For example, when blood fluidity is low, AI becomes small.

In one embodiment, as an example of an index based on the pulse wave, the biological information measuring apparatus 1 calculates the pulse wave velocity PWV, size P _R of the reflected _wave, the time difference Δt between the forward and reflected waves, and the AI Although an example is shown, the index based on the pulse wave is not limited to this. For example, the biological information measuring apparatus 1 may use posterior systolic blood pressure as an index based on pulse waves.

FIG. 11 is a diagram illustrating the time variation of the calculated AI. In one embodiment, the pulse wave was acquired for about 5 seconds using the biological information measuring device 1 including an angular velocity sensor. The controller 10 calculated AI for each pulse from the acquired pulse wave, and further calculated an average value AI _ave thereof. In one embodiment, the biological information measuring apparatus 1 acquires a pulse wave at a plurality of timings before and after a meal, and uses an average value of AI (hereinafter referred to as AI) as an example of an index based on the acquired pulse wave. Calculated. The horizontal axis in FIG. 11 shows the passage of time with the first measurement time after meal being zero. The vertical axis in FIG. 11 indicates the AI calculated from the pulse wave acquired at that time.

The biological information measuring apparatus 1 acquires a pulse wave before a meal, immediately after a meal, and every 30 minutes after a meal, and calculates a plurality of AIs based on each pulse wave. The AI calculated from the pulse wave acquired before the meal was about 0.8. Compared to before the meal, the AI immediately after the meal was small, and the AI reached the minimum extreme value about 1 hour after the meal. The AI gradually increased until the measurement was completed 3 hours after the meal.

The biological information measuring apparatus 1 can estimate a change in blood fluidity from the calculated change in AI. For example, when the red blood cells, white blood cells, and platelets in the blood harden in a dumpling shape or the adhesive strength increases, the fluidity of blood decreases. For example, when the water content of plasma in blood decreases, blood fluidity decreases. These changes in blood fluidity change depending on the health condition of the subject such as the glycolipid state, heat stroke, dehydration, and hypothermia described below. Before the health condition of the subject becomes serious, the subject can know the change in fluidity of his / her blood using the biological information measuring apparatus 1 according to one embodiment. From the change in AI before and after the meal shown in FIG. 11, the blood fluidity was low after the meal, the blood fluidity was the lowest about 1 hour after the meal, and then gradually It can be estimated that the fluidity has increased. The biological information measuring device 1 may notify a state where the blood fluidity is low and a state where the blood fluidity is high. For example, the biological information measuring apparatus 1 may determine whether the blood fluidity is low or the blood fluidity is high based on the average value of AI at the actual age of the subject. The biological information measuring apparatus 1 may determine that the blood fluidity is high if the calculated AI is larger than the average value, and the blood fluidity is low if the calculated AI is smaller than the average value. The biological information measuring apparatus 1 may determine, for example, the determination of a state where the blood fluidity is low and a state where the blood fluidity is high based on the AI before meal. The biological information measuring device 1 may estimate the degree of low blood fluidity by comparing the AI after meal with the AI before meal. The biological information measuring apparatus 1 can use, for example, AI before meal, that is, fasting AI, as an index of the blood vessel age (blood vessel hardness) of the subject. For example, the biological information measuring apparatus 1 calculates the change amount of the calculated AI based on the AI before the subject's meal, that is, the fasting AI, as a reference, and the blood vessel age (hardness of the blood vessel) of the subject. The estimation error due to can be reduced. The biological information measuring apparatus 1 can estimate a change in blood fluidity with higher accuracy.

FIG. 12 is a diagram showing the measurement results of the calculated AI and blood glucose level. The pulse wave acquisition method and the AI calculation method are the same as those in the embodiment shown in FIG. The vertical axis on the right side of FIG. 12 indicates the blood glucose level in the blood, and the vertical axis on the left side indicates the calculated AI. The solid line in FIG. 12 shows the AI calculated from the acquired pulse wave, and the dotted line shows the measured blood glucose level. The blood glucose level was measured immediately after acquiring the pulse wave. The blood glucose level was measured using a blood glucose meter “Medisafefit” (registered trademark) manufactured by Terumo. Compared with the blood glucose level before the meal, the blood glucose level immediately after the meal is increased by about 20 mg / dl. The blood glucose level reached its maximum extreme value about 1 hour after the meal. Thereafter, the blood glucose level gradually decreased until the measurement was completed, and became approximately the same as the blood glucose level before the meal about 3 hours after the meal.

As shown in FIG. 12, the blood glucose level after the pre-meal has a negative correlation with the AI calculated from the pulse wave. As the blood glucose level increases, red blood cells and platelets harden in the form of dumplings due to sugar in the blood, or the adhesive strength increases, and as a result, the blood fluidity may decrease. When blood fluidity decreases, the pulse wave velocity PWV may decrease. When the pulse wave propagation velocity PWV decreases, the time difference Δt between the forward wave and the reflected wave may increase. When the time difference Δt between the forward wave and the reflected wave increases, the size P _R of the reflected wave with respect to the size P _F of the forward wave may be less. If the size P _R of the reflected wave is small relative to the size P _F of the forward wave, AI may be smaller. Since AI within several hours after a meal (3 hours in one embodiment) has a correlation with blood glucose level, the fluctuation of blood glucose level of the subject can be estimated by the fluctuation of AI. Further, if the blood glucose level of the subject is measured in advance and the correlation with the AI is acquired, the biological information measuring apparatus 1 can estimate the blood glucose level of the subject from the calculated AI.

The biological information measuring apparatus 1 can estimate the state of glucose metabolism of the subject based on the generation time of AI _P that is the minimum extreme value of AI that is first detected after a meal. The biological information measuring apparatus 1 estimates, for example, a blood glucose level as the state of sugar metabolism. As an estimate example of the state of glucose metabolism, for example if the minimum extreme value AI _P of AI which is first detected after meal is detected at a later predetermined time (e.g., after a meal to about 1.5 or more hours), the biological information measuring device 1 can be estimated that the subject has an abnormal glucose metabolism (diabetic patient).

Based on the difference (AI _B −AI _P ) between AI _B , which is the AI before the meal, and AI _P , which is the minimum extreme value of AI first detected after the meal, the biological information measuring apparatus 1 determines the subject's information. The state of glucose metabolism can be estimated. As an estimation example of the state of glucose metabolism, for example, when (AI _B -AI _P ) is a predetermined numerical value or higher (for example, 0.5 or higher), it can be estimated that the subject has an abnormal glucose metabolism (postprandial hyperglycemia patient).

FIG. 13 is a diagram showing the relationship between the calculated AI and blood glucose level. The calculated AI and blood glucose level are acquired within 1 hour after a meal with a large fluctuation in blood glucose level. The data in FIG. 13 includes a plurality of different post-meal data in the same subject. As shown in FIG. 13, the calculated AI and blood glucose level showed a negative correlation. The correlation coefficient between the calculated AI and blood glucose level was 0.9 or more. For example, if the correlation between the calculated AI and the blood glucose level as shown in FIG. 13 is obtained for each subject in advance, the biological information measuring apparatus 1 determines the blood glucose level of the subject from the calculated AI. Can also be estimated.

FIG. 14 is a diagram showing measurement results of the calculated AI and triglyceride value. The pulse wave acquisition method and the AI calculation method are the same as those in the embodiment shown in FIG. The vertical axis on the right side of FIG. 14 indicates the neutral fat level in the blood, and the vertical axis on the left side indicates AI. The solid line in FIG. 14 indicates the AI calculated from the acquired pulse wave, and the dotted line indicates the measured triglyceride value. The neutral fat value was measured immediately after acquiring the pulse wave. The neutral fat value was measured using a lipid measuring device “Pocket Lipid” manufactured by Techno Medica. Compared to the neutral fat value before meal, the maximum extreme value of the neutral fat value after meal is increased by about 30 mg / dl. About 2 hours after the meal, the neutral fat reached its maximum extreme value. Thereafter, the triglyceride value gradually decreased until the measurement was completed, and became approximately the same as the triglyceride value before the meal at about 3.5 hours after the meal.

On the other hand, as for the calculated minimum extreme value of AI, the first minimum extreme value AI _P1 was detected about 30 minutes after the meal, and the second minimum extreme value AI _P2 was detected about 2 hours after the meal. . It can be estimated that the first minimum extreme value AI _P1 detected about 30 minutes after the meal is due to the influence of the blood glucose level after the meal described above. The second minimum extreme value AI _P2 detected at about 2 hours after the meal is almost the same as the maximum extreme value of neutral fat detected at about 2 hours after the meal. From this, it can be estimated that the second minimum extreme value AI _P2 detected after a predetermined time from the meal is due to the influence of neutral fat. It was found that the triglyceride level after the pre-meal has a negative correlation with the AI calculated from the pulse wave, like the blood glucose level. In particular, since the minimum extreme value AI _{P2 of} AI detected after a predetermined time from a meal (about 1.5 hours or more in one embodiment) is correlated with the triglyceride value, the subject is subject to fluctuations in AI. The fluctuation of the triglyceride value can be estimated. Further, if the neutral fat value of the subject is measured in advance and the correlation with AI is acquired, the biological information measuring apparatus 1 estimates the neutral fat value of the subject from the calculated AI. Can do.

Based on the occurrence time of the second minimum extreme value AI _P2 detected after a predetermined time after the meal, the biological information measuring apparatus 1 can estimate the lipid metabolism state of the subject. The biological information measuring apparatus 1 estimates a lipid value, for example, as the state of lipid metabolism. As an estimation example of the state of lipid metabolism, for example, when the second minimum extreme value _AIP2 is detected after a predetermined time or more (for example, 4 hours or more) after a meal, the biological information measuring apparatus 1 determines that the subject is a lipid It can be estimated that this is a metabolic disorder (hyperlipidemic patient).

Based on the difference (AI _B −AI _P2 ) between AI _B , which is the AI before the meal, and the second minimum extreme value AI _P2 detected after a predetermined time after the meal, the biological information measuring apparatus 1 determines the subject. The state of lipid metabolism can be estimated. As an estimation example of lipid metabolism abnormality, for example, when (AI _B -AI _P2 ) is 0.5 or more, the biological information measuring apparatus 1 estimates that the subject has lipid metabolism abnormality (postprandial hyperlipidemia patient). it can.

Further, from the measurement results shown in FIGS. 12 to 14, the biological information measuring apparatus 1 according to the embodiment is based on the first minimum extreme value AI _P1 detected earliest after a meal and the generation time thereof. The state of sugar metabolism of a person can be estimated. Furthermore, the biological information measuring apparatus 1 according to the embodiment includes a subject based on the second minimum extreme value AI _P2 detected after a predetermined time after the first minimum extreme value AI _P1 and the generation time thereof. The state of lipid metabolism can be estimated.

In one embodiment, the case of neutral fat has been described as an example of estimation of lipid metabolism, but the estimation of lipid metabolism is not limited to neutral fat. The lipid value estimated by the biological information measuring device 1 includes, for example, total cholesterol, HDL cholesterol, LDL cholesterol, and the like. These lipid values show a tendency similar to that of the neutral fat described above.

FIG. 15 is a flowchart showing a procedure for estimating blood fluidity, sugar metabolism, and lipid metabolism based on AI. With reference to FIG. 15, the flow of blood fluidity and the estimation of the state of sugar metabolism and lipid metabolism by the biological information measuring apparatus 1 according to an embodiment will be described.

As shown in FIG. 15, the biological information measuring apparatus 1 acquires the AI reference value of the subject as an initial setting (step S201). The average AI estimated from the age of the subject may be used as the AI reference value, or the fasting AI of the subject acquired in advance may be used. In addition, the biological information measuring apparatus 1 may use the AI determined to be before meals in steps S202 to S208 as the AI reference value, or may use the AI calculated immediately before the pulse wave measurement as the AI reference value. In this case, the biological information measuring apparatus 1 executes step S201 after steps S202 to S208.

Subsequently, the biological information measuring device 1 acquires a pulse wave (step S202). For example, the biological information measuring apparatus 1 determines whether or not a predetermined amplitude or more has been obtained for a pulse wave acquired during a predetermined measurement time (for example, 5 seconds). If the acquired pulse wave has a predetermined amplitude or more, the process proceeds to step S203. If a predetermined amplitude or more is not obtained, step S202 is repeated (these steps are not shown). In step S202, for example, when the biological information measuring apparatus 1 detects a pulse wave having a predetermined amplitude or more, the biological information measuring apparatus 1 automatically acquires the pulse wave.

The biological information measuring apparatus 1 calculates AI as an index based on the pulse wave from the pulse wave acquired in step S202 and stores it in the storage unit 20 (step S203). The biological information measuring apparatus 1 may calculate an average value AI _ave from AI _n (n = 1 to n) for each predetermined pulse rate (for example, for 3 beats), and use this as AI. Alternatively, the biological information measuring device 1 may calculate the AI at a specific pulse.

The AI may be corrected by, for example, the pulse rate PR, the pulse pressure (P _F -P _S ), the body temperature, the temperature of the test site, and the like. It is known that both pulse and AI and pulse pressure and AI have a negative correlation, and temperature and AI have a positive correlation. When performing the correction, for example, in step S203, the biological information measuring apparatus 1 calculates a pulse and a pulse pressure in addition to the AI. For example, the biological information measuring apparatus 1 may be equipped with a temperature sensor together with the gyro sensor 12, and may acquire the temperature of the test site when acquiring the pulse wave in step S202. The biological information measuring apparatus 1 corrects AI by substituting the acquired pulse, pulse pressure, temperature, and the like into a correction formula created in advance.

Subsequently, the biological information measuring device 1 compares the AI reference value acquired in step S201 with the AI calculated in step S203, and estimates the blood fluidity of the subject (step S204). When the calculated AI is larger than the AI reference value (in the case of YES), it is estimated that the blood fluidity is high. In this case, the biological information measuring apparatus 1 notifies that the blood fluidity is high, for example (step S205). When the calculated AI is not larger than the AI reference value (in the case of NO), it is estimated that the blood fluidity is low. In this case, the biological information measuring apparatus 1 notifies that blood fluidity is low, for example (step S206).

Subsequently, the biological information measuring apparatus 1 confirms with the subject whether or not to estimate the state of sugar metabolism and lipid metabolism (step S207). When sugar metabolism and lipid metabolism are not estimated in step S207 (in the case of NO), the biological information measuring device 1 ends the process. In the case where sugar metabolism and lipid metabolism are estimated in step S207 (in the case of YES), the biological information measuring apparatus 1 checks whether the calculated AI is acquired before or after a meal (step S208). If it is not after a meal (before a meal) (in the case of NO), the process returns to step S202 to acquire the next pulse wave. In the case of after eating (in the case of YES), the biological information measuring apparatus 1 stores the pulse wave acquisition time corresponding to the calculated AI (step S209). Then, when acquiring a pulse wave (in the case of NO at step S210), the process returns to step S202, and the biological information measuring device 1 acquires the next pulse wave. When the pulse wave measurement is finished (in the case of YES at step S210), the process proceeds to step S211 and subsequent steps, and the biological information measuring apparatus 1 estimates the sugar metabolism and lipid metabolism of the subject.

Subsequently, the biological information measuring apparatus 1 extracts the minimum extreme value and its time from the plurality of AIs calculated in Step S204 (Step S211). For example, when the AI as shown by the solid line in FIG. 14 is calculated, the biological information measuring apparatus 1 uses the first minimum extreme value AI _P1 about 30 minutes after the meal and the second minimum value about 2 hours after the meal. The extreme value AI _P2 is extracted.

Subsequently, the biological information measuring apparatus 1 estimates the sugar metabolism state of the subject from the first minimum extreme value AI _P1 and the time (step S212). Furthermore, the biological information measuring apparatus 1 estimates the lipid metabolism state of the subject from the second minimum extreme value AI _P2 and the time (step S213). An example of estimating the state of sugar metabolism and lipid metabolism of the subject is the same as that in FIG.

Subsequently, the biological information measuring apparatus 1 notifies the estimation results of step S212 and step S213 (step S214), and ends the process shown in FIG. The audio output unit 16 reports, for example, “normal sugar metabolism”, “suspected abnormal sugar metabolism”, “normal lipid metabolism”, “suspected abnormal lipid metabolism”, and the like. Further, the voice output unit 16 may notify advice such as “Let's consult a hospital” and “Let's review the diet”. Then, the biological information measuring device 1 ends the process shown in FIG.

Thus, the biological information measuring device 1 may include the audio output unit 16 that outputs sound. Further, instead of the notification of the sound output from the sound output unit 16 as described above, or together with the notification of the sound, a display notification may be displayed on the display unit 14. As described above, the biological information measuring apparatus 1 may include the display unit 14 that displays information related to the measurement process performed by the controller 10. The audio output unit 16 may output a sound indicating that the gyro sensor 12 detects a motion factor. Thereby, in the biological information measuring device 1, the user can easily and clearly know that the gyro sensor 12 is correctly detecting the motion factor.

As described above, the biological information measured by the biological information measuring device 1 may include information on at least one of the user's pulse wave, pulse, respiration, heartbeat, pulse wave propagation velocity, and blood flow.

Moreover, the controller 10 is based on the biological information which the biological information measuring device 1 measures, and a user's physical condition, sleepiness, sleep, arousal state, psychological state, physical state, emotion, mind and body state, mental state, autonomic nerve, stress You may estimate the information regarding at least any one of a state, a consciousness state, a blood component, a sleep state, a respiratory state, and a blood pressure. Here, the “physical state” of the user is, for example, the presence or absence of symptoms such as heat stroke, fatigue, altitude sickness, diabetes, metabolic syndrome, the degree of these symptoms, and the presence or absence of signs of these symptoms, etc. It can be. Further, the blood component can be neutral fat, blood sugar level, or the like.

Next, another usage mode of the biological information measuring apparatus 1 according to an embodiment will be described.

FIG. 16 is a diagram for explaining another usage mode of the biological information measuring apparatus 1 according to an embodiment. FIG. 16 schematically shows a pregnant mother and fetus. The biological information measuring device 1 according to the above-described embodiment has been described on the assumption that the biological information of the user is measured. However, the biological information measuring device 1 according to the embodiment is not limited to such an application.

As shown in FIG. 16, the biological information of the fetus can be measured together with the mother body by pressing the biological information measuring device 1 against the abdomen. In general, since the fetus in the early stage of pregnancy (for example, around 4 to 11 weeks of pregnancy) is very small, it is very difficult to listen directly to the heart sound itself. Therefore, at this time, echo or the like is often used to confirm the fetal heartbeat. However, according to the biological information measuring apparatus 1 according to the embodiment, the biological information of the fetus can be measured by using the gyro sensor 12, such as detecting the fetal pulse.

In the usage mode as shown in FIG. 16, the biological information measuring apparatus 1 measures the biological information of the fetus together with the biological information of the mother. For this reason, you may extract and utilize only the biological information of a fetus from the biological information which the biological information measuring device 1 measured. As described above, the biological information measured by the biological information measuring device 1 may be biological information of the user's fetus.

FIG. 17 is a schematic diagram illustrating a schematic configuration of a biological information measurement system according to an embodiment of the present disclosure. The biological information measurement system 100 of one embodiment shown in FIG. 17 includes a first device 110, a second device 120, and a communication network.

In the biological information measuring system 100, the first device 110 detects a motion factor due to a fluctuation of the user's torso. For this reason, the first device 110 includes a gyro sensor 12. The first device 110 includes a communication unit (which can be wired or wirelessly connected), and transmits the detected motion factor to the second device 120. In the biological information measurement system 100, the second device 120 performs various calculations related to the measurement of biological information based on the received motion factor. Therefore, the second device 120 includes various necessary functional units including the controller 10. In FIG. 17, it is assumed that the first device 110 and the second device 120 are connected by wireless communication, but the biological information measurement system 100 is not limited to such a configuration. For example, the first device 110 and the second device 120 may be connected by a wired connection such as a predetermined cable.

As described above, the biological information measuring system 100 includes the first device 110 and the second device 120. The first device 110 includes a gyro sensor 12. Here, the gyro sensor 12 detects a motion factor caused by the fluctuation of the user's torso in a state where the first device 110 is pressed against the user's torso. The second device 120 includes the controller 10. The second device 120 has an artificial intelligence function, a machine learning function, a deep learning function, and the like, and measures biological information using an algorithm obtained statistically based on the motion factor received from the first device 110. Such various calculations may be performed.

In order to fully and clearly disclose the present disclosure, several embodiments have been described. However, the appended claims should not be limited to the above-described embodiments, but all modifications and alternatives that can be created by those skilled in the art within the scope of the basic matters shown in this specification. Should be configured to embody such a configuration. Each requirement shown in some embodiments can be freely combined.

For example, in the present disclosure, the biological information measuring device 1 and the biological information measuring system 100 have been described. However, the embodiment of the present disclosure may be implemented as a biological information measuring method by the biological information measuring device 1 including the gyro sensor 12. In this case, in the method, the gyro sensor 12 detects a motion factor resulting from the fluctuation of the user's torso while the biological information measuring device 1 is pressed against the user's torso. Here, the gyro sensor 12 may detect a motion factor processed as a self-control factor. Moreover, in the said method, a measurement process of a user's biometric information is performed based on the motion factor detected in such a state.

For example, in the above-described embodiment, the biological information measuring device 1 has been described as including the contact portion 40 and the support portion 50, but the biological information measuring device 1 may not include the support portion 50. In this case, a part of the back surface of the housing 30 of the biological information measuring device 1 is in contact with the subject at a position different from the test site, so that the contact state of the contact portion 40 with respect to the test site is supported. .

In the above embodiment, the case where the contact portion 40 is fixed to the biological information measuring device 1 has been described, but the contact portion 40 does not necessarily have to be directly fixed to the biological information measuring device 1. The abutting portion 40 may be fixed to a holder used by being fixed to the biological information measuring device 1.

(Second Embodiment)
Next, a second embodiment of the present disclosure will be described in detail with reference to the drawings. In the second embodiment, the biological information measuring device 1 according to the first embodiment described above is realized as a mobile terminal device.

In the second embodiment described below, a mobile phone such as a smartphone will be described as an example of the mobile terminal device. However, the second embodiment is not limited to a mobile phone such as a smartphone, and may be a feature phone type mobile phone, for example. In addition, the embodiment of the present disclosure is not necessarily limited to a mobile phone, and may be various mobile terminal devices such as a tablet terminal, a remote control terminal for remotely operating an electronic device, a digital camera, and a notebook PC. In short, the embodiment of the present disclosure may be any portable terminal device having a function of measuring biological information.

FIG. 18 is a functional block diagram showing a schematic configuration of a mobile terminal device according to an embodiment. As illustrated in FIG. 18, the mobile terminal device 2 includes a controller 10, a power supply unit 11, a gyro sensor 12, a display unit 14, an audio output unit 16, a communication unit 17, a vibrator 18, and a storage unit 20. And. In addition, the mobile terminal device 2 includes an operation key unit 22 and a microphone 24.

The controller 10 includes a processor that controls and manages the entire mobile terminal device 2 including each functional block of the mobile terminal device 2. The controller 10 includes a processor such as a CPU (Central Processing Unit) that executes a program defining a control procedure and a program for measuring biological information of a subject. Such a program is stored in a storage medium such as the storage unit 20, for example. Further, the controller 10 performs control for realizing various functions of the mobile terminal device 2. For example, when the mobile terminal device 2 is a smartphone, the controller 10 performs control for realizing a function related to a call or data communication and a function related to execution of each application program.

The power supply unit 11 includes a battery and supplies power to each unit of the mobile terminal device 2. The portable terminal device 2 receives power supply from the power supply unit 11 or an external power supply during operation.

The gyro sensor 12 detects the displacement of the portable terminal device 2 as a motion factor by detecting the angular velocity of the portable terminal device 2. The gyro sensor 12 is, for example, a three-axis vibration gyro sensor that detects an angular velocity from deformation of a structure due to Coriolis force acting on a vibrating arm. Here, this structure may be made of a piezoelectric material such as quartz or piezoelectric ceramic. The gyro sensor 12 may be formed by MEMS (Micro Electro Mechanical Systems) technology using the structure as a material such as silicon. The gyro sensor 12 may be another type of gyro sensor such as an optical gyro sensor. The controller 10 can measure the orientation of the mobile terminal device 2 by integrating the angular velocity acquired by the gyro sensor 12 with respect to time.

The gyro sensor 12 is an angular velocity sensor, for example. However, the gyro sensor 12 is not limited to the angular velocity sensor. The gyro sensor 12 may detect an angular displacement of the mobile terminal device 2 that is a motion factor. The gyro sensor 12 detects a motion factor that is processed as a self-control factor. The motion factor detected by the gyro sensor 12 is transmitted to the controller 10.

The controller 10 acquires a motion factor from the gyro sensor 12. The motion factor includes an index indicating the displacement of the mobile terminal device 2 based on the pulsation at the subject site of the subject. The controller 10 generates a pulsation of the subject based on the motion factor. The controller 10 measures biological information based on the subject's pulsation. Details of the measurement processing of biological information by the controller 10 will be described later.

The voice output unit 16 notifies the user or the like by outputting sound. The audio output unit 16 can be configured with an arbitrary speaker or the like. The sound output unit 16 outputs the sound signal transmitted from the controller 10 as sound. The user can hear the voice of the other party from the voice output unit 16 during a call using the mobile terminal device 2, for example. In this case, the user can listen to the other party's voice by placing the voice output unit 16 on his / her ear. Further, in the case of a usage mode such as a speakerphone, the user can listen to the voice of the other party even if the voice output unit 16 is not placed on the ear.

The communication unit 17 transmits and receives various data by performing wired communication or wireless communication with an external device. The communication unit 17 can perform communication by connecting to a base station or the like in order to realize the telephone and / or data communication functions of the mobile terminal device 2. Moreover, the communication part 17 can transmit the measurement result etc. of the biometric information which the portable terminal device 2 measured to the external device, for example. Furthermore, the communication part 17 can also communicate with the external apparatus which memorize | stores a subject's biometric information, in order to manage a health condition.

The vibrator 18 informs the user and the like by generating vibration and the like. The vibrator 18 presents a tactile sensation to the user of the mobile terminal device 2 by generating vibration or the like at an arbitrary part of the mobile terminal device 2. As long as the vibrator 18 generates vibration, an arbitrary member such as an eccentric motor, a piezoelectric element (piezo element), or a linear vibrator can be employed.

The storage unit 20 stores various programs and data including application programs. The storage unit 20 may include any non-transitory storage medium such as a semiconductor storage medium and a magnetic storage medium. The storage unit 20 may include a plurality of types of storage media. The storage unit 20 may include a combination of a portable storage medium such as a memory card, an optical disk, or a magneto-optical disk and a storage medium reader. The storage unit 20 may include a storage device used as a temporary storage area such as a RAM (Random Access Memory). The storage unit 20 stores various information and a program for operating the mobile terminal device 2 and also functions as a work memory. The storage unit 20 may store, for example, data detected by the gyro sensor 12 and measurement results of biological information.

The operation key unit 22 includes one or more operation keys that detect a user's operation input. The operation key unit 22 can be configured by any key or button such as a push button switch or a slide switch. In a configuration in which all operations can be performed on the touch screen display, the operation key unit 22 is not necessarily a necessary element.

The microphone 24 detects sound and converts it into an audio signal. The microphone 24 can be composed of any one that can detect sound. The microphone 24 transmits the converted audio signal to the controller 10. The controller 10 can transmit the received audio signal from, for example, the communication unit 17. Thereby, the user can transmit the voice input to the microphone 24 to the other party during a call using the mobile terminal device 2, for example.

The mobile terminal device 2 according to an embodiment of the present disclosure is not limited to the configuration illustrated in FIG. The mobile terminal device 2 according to an embodiment includes a controller 10 and a gyro sensor 12 in order to measure biological information. In the mobile terminal device 2 according to the embodiment, other components other than the controller 10 and the gyro sensor 12 may be omitted or other components may be added as necessary. In addition, the portable terminal device 2 includes the controller 10 and the gyro sensor 12 in order to measure the biological information, but the portable terminal device 2 when the biological information is not measured does not include the gyro sensor 12 (not included). ) Can also be configured. In this case, for example, an external member such as a case or an attachment that can be attached to the mobile terminal device 2 may include the gyro sensor 12.

The portable terminal device 2 can measure biometric information at the subject site of the subject. The test site may be, for example, the body of the test subject (user of the mobile terminal device 2), as will be described later. The mobile terminal device 2 measures the biological information of the subject based on the fluctuation of the trunk that is the test site.

The biological information measured by the mobile terminal device 2 includes, for example, at least one of a blood component, a pulse wave, a pulse, and a pulse wave propagation speed. The blood component includes, for example, a state of sugar metabolism and a state of lipid metabolism. The state of glucose metabolism includes, for example, blood glucose level. The state of lipid metabolism includes, for example, a lipid value. Lipid levels include neutral fat, total cholesterol, HDL (High Density Lipoprotein) cholesterol, LDL (Low Density Lipoprotein) cholesterol, and the like. For example, the portable terminal device 2 acquires a subject's pulse wave as biological information, and measures biological information such as blood components based on the acquired pulse wave.

FIG. 19 is a schematic perspective view showing the external appearance of the mobile terminal device 2 according to an embodiment. For example, as shown in FIG. 19, the mobile terminal device 2 according to the embodiment can be configured as a mobile terminal device such as a relatively small mobile phone. However, the mobile terminal device 2 is not limited to a mobile terminal device such as a mobile phone. For example, the mobile terminal device 2 may be incorporated in any other portable electronic device.

FIG. 19A is a diagram showing the front side of the mobile terminal device 2. FIG. 19B is a diagram illustrating the back side of the mobile terminal device 2, that is, a diagram illustrating a state in which the mobile terminal device 2 illustrated in FIG.

As shown in FIG. 19, the mobile terminal device 2 includes a housing 30 whose external shape is substantially rectangular. As shown in FIG. 19A, the mobile terminal device 2 includes a display unit 14, an audio output unit 16, an operation key unit 22, and a microphone 24 on the front side. The display unit 14 can display information related to the measurement process of the mobile terminal device 2. For this reason, the user etc. can confirm the condition, only measuring the display of the display part 14, measuring biometric information. Moreover, the user etc. can also confirm the result of having measured biometric information only by seeing the display of the display part 14. Furthermore, the user or the like can check whether or not the biological information is correctly measured only by looking at the display on the display unit 14. In addition, the display unit 14 may display information such as time.

When the mobile terminal device 2 functions as a mobile phone, the voice output unit 16 outputs the voice of the other party. Moreover, when measuring biological information using the portable terminal device 2, the audio output unit 16 outputs sound when the portable terminal device 2 starts measuring biological information or when the measurement is completed. The user is notified that the measurement has started or completed. Furthermore, the audio output unit 16 may output a sound for notifying the user that the measurement is continuing. The user or the like can confirm whether or not the biological information is correctly measured by the sound output from the sound output unit 16.

The operation key unit 22 is configured by

operation keys

22A, 22B, and 22C in the example shown in FIG. The operation key unit 22 is not limited to the number and arrangement of the keys, and various numbers and arrangements can be adopted according to the specifications of the mobile terminal device 2 and the like. For example, in the example shown in FIG. 19A, the operation key portion 22 is disposed only on the front side of the mobile terminal device 2, but may be disposed on the side surface or the back surface side of the mobile terminal device 2 body. Good. In the mobile terminal device 2, the operation key unit 22 may be a switch such as a button for starting measurement of biological information.

As described above, the microphone 24 detects the voice of the user or the like mainly when the mobile terminal device 2 functions as a mobile phone. In the example shown in FIG. 19A, only one microphone 24 is arranged on the front side of the mobile terminal device 2, but various numbers and arrangements are adopted according to the specifications of the mobile terminal device 2. be able to.

As shown in FIG. 19B, the mobile terminal device 2 has a contact portion 40 and a support portion 50 on the back side. In the example shown in FIG. 19B, the contact portion 40 and the support portion 50 form substantially the same plane as the back surface of the housing 30. However, at least one of the contact portion 40 and the support portion 50 may be a member protruding from the back side of the housing 30. As shown in FIG. 19B, the contact portion 40 and the support portion 50 are fixed to the mobile terminal device 2 on the back surface of the housing 30. At least one of the contact part 40 and the support part 50 may be provided so as not to be detachable from the mobile terminal device 2, for example. At least one of the contact part 40 and the support part 50 may be configured to be detachable from the mobile terminal device 2, for example.

The abutting portion 40 abuts on the test site when the biological information is measured by the mobile terminal device 2. That is, the contact part 40 contacts the torso of the subject or the periphery thereof, for example, when measuring biological information. Further, as shown in FIG. 19B, the gyro sensor 12 is attached to the back side of the contact portion 40. In the example shown in FIG. 19B, since the gyro sensor 12 is installed inside the housing 30, the gyro sensor 12 is indicated by a broken line. The contact part 40 and the gyro sensor 12 may be configured as separate members, or may be configured as one and the same member.

The support unit 50 contacts the subject at a position different from the contact unit 40 when biological information is measured by the mobile terminal device 2. The support part 50 contacts the subject's torso at a position different from the contact part 40, for example. The support part 50 supports the contact state of the contact part 40 with respect to the test site by contacting the subject. Note that the mobile terminal device 2 may include a plurality of support portions 50. The plurality of support parts 50 are arranged in a straight line, for example. The contact portion 40 and the support portion 50 (and the housing 30) are configured so that the variation of the test portion that contacts the contact portion 40 is appropriately transmitted to the gyro sensor 12. Details of the contact mode of the contact portion 40 and the support portion 50 to the test site will be described later.

The mobile terminal device 2 according to an embodiment of the present disclosure is not limited to the structure illustrated in FIG. As described above, in the mobile terminal device 2 according to the embodiment, other components other than the controller 10 and the gyro sensor 12 are appropriately omitted or other components are added as necessary. Also good.

For example, as described later, in order to fix the mobile terminal device 2 to the user's torso, a case, a holder, an attachment, or the like that allows the mobile terminal device 2 to be mounted on the user's belt or waistband is prepared separately. May be. When measuring biological information using the portable terminal device 2 shown in FIG. 19, it is necessary for the subject himself / herself to fix the portable terminal device 2 to the body of the subject using his / her hand. On the other hand, if the above-described case, holder, attachment, or the like is used, the portable terminal device 2 can be fixed to the body of the subject when measuring biological information. Therefore, in this case, it is not necessary for the subject himself / herself to fix the portable terminal device 2 to the body of the subject using his / her hand. A mode in which the portable terminal device 2 is mounted on a belt or a waistband of the user using such a case, a holder, or an attachment will be described later.

Next, a measurement process of biological information by the mobile terminal device 2 will be described. The mobile terminal device 2 acquires a motion factor in a state where the contact portion 40 fixed to the mobile terminal device 2 is in contact with the test site, and measures biological information based on the acquired motion factor. The mobile terminal device 2 may acquire the motion factor in a state where the support unit 50 fixed to the mobile terminal device 2 is in contact with the subject at a position different from the test site.

In measuring biometric information, the mobile terminal device 2 is ready for biometric information measurement processing based on, for example, an input operation by a subject. The state in which measurement processing of biological information is possible refers to a state in which an application for measuring biological information is activated, for example. The subject makes the measurement process of the biological information possible and starts acquisition of the motion factor by the mobile terminal device 2.

Next, the principle by which the mobile terminal device 2 measures the user's biological information will be further described. The portable terminal device 2 measures biological information based on the fluctuation of the user's torso. As described in FIG. 4, the gyro sensor 12 can detect a change in the user's torso in a state where the mobile terminal device 2 is pressed against the body including the chest or abdomen of the user. In this way, the gyro sensor 12 detects a motion factor resulting from a change in the user's torso.

FIG. 20 is a diagram illustrating an example of a motion factor acquisition mode by the mobile terminal device 2. FIG. 20A is a diagram illustrating an example in which the mobile terminal device 2 includes the gyro sensor 12 (for example, built in the main body). FIG. 20B is a diagram illustrating an example in which the main body of the mobile terminal device 2 does not include the gyro sensor 12 and a member such as an external case or attachment includes the gyro sensor 12.

20A and 20B show a cross section of a part including the aorta in a living body such as a human body. 20A and 20B show a state in which the back side of the housing 30 of the mobile terminal device 2 shown in FIG. 19 is in contact with the test site of the living body. Therefore, as shown in FIGS. 20A and 20B, the contact part 40 and the support part 50 are in contact with the test site on the surface of the living body (skin). Here, in one embodiment, the test site on the surface of the living body is the torso of the user. In addition, the aorta shown in FIGS. 20A and 20B may be the thoracic aorta shown in FIG. 4 or the abdominal aorta.

As shown in FIGS. 20A and 20B, the subject presses the portable terminal device 2 against the trunk and causes the portable terminal device 2 to acquire a motion factor. As shown in FIGS. 20A and 20B, in the contact state between the portable terminal device 2 and the user's torso, the contact portion 40 contacts the test site. As shown in FIGS. 20A and 20B, in the motion factor acquisition state by the mobile terminal device 2, the support unit 50 is placed on the body of the subject at a position different from the contact unit 40. Abut.

As shown in FIGS. 20A and 20B, when the mobile terminal device 2 is pressed in the direction of the arrow P at the position of the arrow P and brought into contact with the trunk, the mobile terminal device 2 It is displaced according to the movement of the blood vessel expansion and contraction based on the pulsation of the person. The mobile terminal device 2 has an upper end that is not pressed in the direction of the arrow P in the side view, as indicated by an arrow Q in FIGS. 20A and 20B, with the support portion 50 in contact with the body as a fulcrum. Displace so that the side rotates. Such a displacement is usually a vibration-like displacement in which the reciprocation of a partial rotational motion is repeated. The gyro sensor 12 included in the mobile terminal device 2 acquires the pulse wave of the subject by detecting the displacement of the mobile terminal device 2. The pulse wave is obtained by capturing a change in the volume of the blood vessel caused by the inflow of blood as a waveform from the body surface.

As described above, in the mobile terminal device 2 according to the embodiment, the gyro sensor 12 detects a motion factor due to the fluctuation of the user's torso. The gyro sensor 12 detects a motion factor due to a change in the user's torso in a state where the mobile terminal device 2 is pressed against the user's torso. The controller 10 performs measurement processing of the user's biological information based on the motion factor detected by the gyro sensor 12 in this way.

Here, the user's torso may include the user's abdomen or chest. Moreover, although the fluctuation | variation of a user's trunk | body was shown in FIG. 20 (A) and FIG.20 (B), the example of the fluctuation | variation produced by a user's blood vessel movement was shown, However, It is not limited to this. The fluctuation of the user's torso may include not only the fluctuation caused by the movement of the user's blood vessel but also at least one of the fluctuation caused by the user's breathing and the fluctuation caused by the user's body movement. The user's blood vessel may also include the user's aorta. The user's aorta may include at least one of the user's abdominal aorta and thoracic aorta. In large blood vessels such as the aorta, a large amount of blood constantly flows. For this reason, in the portable terminal device 2, by measuring the user's aorta as a measurement target, it is possible to measure biological information stably with high accuracy.

Also, as shown in FIG. 20B, the gyro sensor 12 is pressed against the user's torso via the elastic member 19, so that it becomes easy to follow the fluctuation of the user's torso. Therefore, the portable terminal device 2 can measure biometric information stably with high accuracy. Here, the elastic member 19 may be any member that generates an elastic force, such as a spring, rubber, flexible resin, one using hydraulic pressure, one using air pressure, one using water pressure, or the like. is there. The support portion 50 shown in FIG. 20B connects the housing on which the gyro sensor 12 is installed and the housing on which the gyro sensor 12 is not installed. As shown in FIG. 20B, the housing on which the gyro sensor 12 is installed has a mechanism that can move around the support portion 50 relative to the housing on which the gyro sensor 12 is not installed. Yes.

As described above, the portable terminal device 2 shown in FIG. 20B can be configured not to incorporate the gyro sensor 12 in the main body. In this case, an external member such as an attachment including the gyro sensor 12 and the contact portion 40 illustrated in FIG. 20B may be attached to the mobile terminal device 2 via the support portion 50. In such a configuration, a detection signal detected by the gyro sensor 12 may be supplied to the controller 10 of the mobile terminal device 2 via the support unit 50, for example.

Since the mobile terminal device 2 includes the gyro sensor 12, the user can measure biological information from the top of the clothes while wearing the clothes. That is, according to the mobile terminal device 2, the user does not need to undress when measuring biological information. Moreover, according to the portable terminal device 2, the user does not need to make a measuring device touch a skin directly. For this reason, according to the portable terminal device 2, measurement of biological information can be performed easily.

On the other hand, in the portable terminal device 2, the gyro sensor 12 is used for measuring biological information. A gyro sensor generally has little noise during measurement. Since the gyro sensor constantly vibrates (in the case of the vibration type gyro sensor), noise can be reduced due to the structure. In the mobile terminal device 2 according to the embodiment, the gyro sensor 12 that can be incorporated in the small housing 30 can be employed.

Next, a usage mode of the mobile terminal device 2 according to an embodiment will be described. FIG. 21 is a diagram illustrating an example of measuring biological information using the mobile terminal device 2. In FIG. 21, the gyro sensor 12 built in the mobile terminal device 2 is indicated by a broken line.

FIG. 21A shows an example in which biological information is measured using the mobile terminal device 2 as shown in FIG. As shown in FIG. 21A, when measuring biological information using the mobile terminal device 2, the user himself / herself presses the contact portion 40 of the mobile terminal device 2 against the test site using a hand or the like. Thus, biological information can be measured.

When the portable terminal device 2 is pressed using a hand or the like, the gyro sensor 12 does not press the position of the gyro sensor 12 as shown in FIG. You may do it. In this case, the position without the gyro sensor 12, that is, the vicinity of the lower end of the mobile terminal device 2 shown in FIG. On the back side in the vicinity of the lower end of the mobile terminal device 2 shown in FIG. 19A, there is a support portion 50 shown in FIG.

When the portable terminal device 2 is pressed using a hand or the like, the user can freely change the test site with which the contact portion 40 of the portable terminal device 2 comes into contact. For example, the movement of the thoracic aorta may be easily detected by moving the mobile terminal device 2 to the upper body side a little. Further, for example, the mobile terminal device 2 may be moved to the lower body side to make it easier to detect the movement of the abdominal aorta. As described above, the user of the portable terminal device 2 can search for the position of the test site where the measurement of the biological information can be satisfactorily performed and measure the biological information with high accuracy.

FIG. 21 (B) shows an example using a case, a holder, an attachment, or the like that allows the mobile terminal device 2 to be attached to a belt or a waistband as described above. As shown in FIG. 21B, when the user wears the belt 60 or the waistband 62, the portable terminal device 2 is attached to the user's belt 60 or waist using a case, a holder, an attachment, or the like. It can be attached to the band 62 or the like. Such a case, a holder, an attachment, or the like can be appropriately configured as an external member that allows the mobile terminal device 2 to be attached to the belt 60 or the waistband 62 of the user.

This makes it unnecessary for the user to press the contact portion 40 of the portable terminal device 2 against the test site when measuring biological information. Further, in this case, the user adjusts the position to which the contact portion 40 of the mobile terminal device 2 contacts to some extent by adjusting the position where the belt 60 or the waistband 62 presses the mobile terminal device 2. be able to. Therefore, the user of the portable terminal device 2 can search for the position of the test site where the measurement of the biological information can be performed satisfactorily and can measure the biological information with high accuracy.

Thus, in one embodiment, a part of the mobile terminal device 2 is pressed against the user's torso, and at least a part other than a part of the mobile terminal device 2 is the belt 60 or waist of the user's clothes. It may be pressed against the band 62. In such a state, the gyro sensor 12 may detect a motion factor. The controller 10 may perform a measurement process based on the motion factor thus detected.

FIG. 21C shows an example in which the mobile terminal device 2 shown in FIG. In the example shown in FIG. 21C, it becomes easier to detect the movement of the abdominal aorta than in the examples shown in FIGS. 21A and 21B. In this case, when measuring the biological information, the user presses the contact portion 40 of the mobile terminal device 2 against the test site by using a hand or the like, or by using the belt 60 or the waistband 62.

Thus, in one embodiment, a part of the mobile terminal device 2 is pressed against the lower abdomen side of the user's torso, and at least a part other than a part of the mobile terminal device 2 is lower than the lower abdomen side. It may be pressed against the head side of the user's torso. In such a state, the gyro sensor 12 may detect a motion factor. The controller 10 may perform a measurement process based on the motion factor thus detected.

FIG. 22 is a diagram illustrating another example of measuring biological information using the mobile terminal device 2, as in FIG. 21. Also in FIG. 22, the gyro sensor 12 built in the portable terminal device 2 is indicated by a broken line.

As shown in FIG. 22A, the biological information may be measured with the mobile terminal device 2 in the horizontal direction. In the state shown in FIG. 22A, when the portable terminal device 2 is pressed using a hand or the like, the position of the gyro sensor 12 is not pressed so that the gyro sensor 12 can detect the movement of the blood vessel satisfactorily. You may do it. In this case, the position where the gyro sensor 12 is not present, that is, the vicinity of the end of the mobile terminal device 2 on the side where the support unit 50 exists may be pressed using a hand or the like. In this case, since the gyro sensor 12 is close to the center line M of the torso, the movement of the thoracic aorta or the abdominal aorta can be detected well.

Also, as shown in FIG. 22B, the orientation of the mobile terminal device 2 may be reversed from that shown in FIG. In this case, the gyro sensor 12 contacts the side surface of the trunk, that is, the vicinity of the flank. In this case, a position where the gyro sensor 12 is not provided, that is, the vicinity of the end of the mobile terminal device 2 on the side where the support unit 50 exists may be pressed using a hand or the like.

Thus, in one embodiment, a part of the portable terminal device 2 is pressed against the side surface of the user's torso, and at least a part other than a part of the portable terminal device 2 is a side surface of the user's torso. It may be pressed to the center M side of the trunk rather than the side. In such a state, the gyro sensor 12 may detect a motion factor. The controller 10 may perform a measurement process based on the motion factor thus detected.

The mobile terminal device 2 performs a pulse wave measurement process in a state in which the contact portion 40 is in contact with the test site. The pulse wave measurement process by the mobile terminal device 2 can be performed in the same manner as in the first embodiment, based on a principle similar to that of the biological information measuring device 1 according to the first embodiment described above. Therefore, a more detailed description of the pulse wave measurement process by the band terminal device 2 is omitted.

The portable terminal device 2 according to the present embodiment may include an audio output unit 16 that outputs a sound related to a measurement process performed by the controller 10 as in the biological information measuring device 1 according to the first embodiment. Further, instead of the notification of the sound output from the sound output unit 16 as described above, or together with the notification of the sound, a display notification may be displayed on the display unit 14. As described above, the mobile terminal device 2 may include the display unit 14 that displays information related to the measurement process performed by the controller 10. The audio output unit 16 may output a sound indicating that the gyro sensor 12 detects a motion factor. Thereby, in the mobile terminal device 2, the user can easily and clearly know that the gyro sensor 12 is correctly detecting the motion factor.

Similarly to the first embodiment, the biological information measured by the mobile terminal device 2 may include information on at least one of the user's pulse wave, pulse, respiration, heartbeat, pulse wave velocity, and blood flow. .

Further, as in the first embodiment, the controller 10 is based on the biological information measured by the mobile terminal device 2, so that the user's physical condition, drowsiness, sleep, wakefulness, psychological state, physical state, emotion, psychosomatic state, mental state. Information regarding at least one of a state, an autonomic nerve, a stress state, a conscious state, a blood component, a sleep state, a respiratory state, and a blood pressure may be estimated. Here, the “physical state” of the user is, for example, the presence or absence of symptoms such as heat stroke, fatigue, altitude sickness, diabetes, metabolic syndrome, the degree of these symptoms, and the presence or absence of signs of these symptoms, etc. It can be. Further, the blood component can be neutral fat, blood sugar level, or the like.

The portable terminal device 2 according to the embodiment described above has been described on the assumption that the biological information of the user himself / herself is measured. However, the mobile terminal device 2 according to an embodiment is not limited to such an application.

For example, as shown in FIG. 16, the biological information of the fetus can be measured together with the mother by pressing the mobile terminal device 2 against the abdomen, as in the first embodiment. According to the mobile terminal device 2 according to the second embodiment, by using the gyro sensor 12, it is possible to measure fetal biological information such as detecting the fetal pulse.

Also, the mobile terminal device 2 according to an embodiment of the present disclosure can configure a biological information measurement system, as in the example illustrated in FIG. In this case, the biological information measurement system 100 according to the embodiment illustrated in FIG. 17 includes a mobile terminal device 2 as the first device 110, an external device as the second device 120, and a communication network. Other points can be implemented in the same manner as in the first embodiment described with reference to FIG. 17, and thus a more detailed description is omitted.

In the above description, the mobile terminal device 2 and the biological information measurement system 100 are described. However, the embodiment of the present disclosure may be implemented as a biological information measurement method by the mobile terminal device 2 including the gyro sensor 12. In this case, in the method, the gyro sensor 12 detects a motion factor resulting from the fluctuation of the user's torso while the portable terminal device 2 is pressed against the user's torso. Here, the gyro sensor 12 detects a motion factor processed as a self-control factor. Moreover, in the said method, a measurement process of a user's biometric information is performed based on the motion factor detected in such a state.

For example, in the above-described embodiment, the mobile terminal device 2 has been described as including the contact portion 40 and the support portion 50, but the mobile terminal device 2 may not include the support portion 50. In this case, a part of the back surface of the housing 30 of the mobile terminal device 2 contacts the subject at a position different from the test site, so that the contact state of the contact portion 40 with the test site is supported.

In the above embodiment, the case where the contact portion 40 is fixed to the mobile terminal device 2 has been described. However, the contact portion 40 does not necessarily have to be directly fixed to the mobile terminal device 2. The contact portion 40 may be fixed to a holder that is used by being fixed to the mobile terminal device 2.

DESCRIPTION OF SYMBOLS 1 Biological information measuring device 2 Portable terminal device 10 Controller 11 Power supply part 12 Gyro sensor 14 Display part 16 Audio | voice output part 17 Communication part 18 Vibrator 19 Elastic member 20 Memory | storage part 30 Housing 40 Contact part 50 Support part 60 Belt 62 Waistband 100 Biological information measurement system 110 First device 120 Second device

Claims

A biological information measuring device,
A gyro sensor that detects fluctuations in the user's torso,
A controller that performs a measurement process of the user's biological information based on the variation detected in a state where the biological information measuring device is pressed against the body;
A biological information measuring device comprising:
The torso includes the user's abdomen or chest.
The biological information measuring device according to claim 1.
The variation includes at least one of a variation caused by movement of the user's blood vessels, a variation caused by the user's breathing, and a variation caused by the user's body movement.
The biological information measuring device according to claim 1 or 2.
The blood vessel includes the user's aorta,
The biological information measuring device according to claim 3.
The aorta includes at least one of the user's abdominal aorta and thoracic aorta,
The biological information measuring device according to claim 4.
The biological information includes information on at least one of the user's pulse wave, pulse, respiration, heartbeat, pulse wave velocity, and blood flow.
The biological information measuring device according to any one of claims 1 to 5.
The controller is based on the biological information, the user's physical condition, drowsiness, sleep, wakefulness, psychological state, physical state, emotion, psychosomatic state, mental state, autonomic nerve, stress state, consciousness state, blood component, Estimating information on at least one of sleep state, respiratory state, and blood pressure;
The biological information measuring device according to any one of claims 1 to 6.
The controller is detected in a state where a part of the biological information measuring device is pressed against the body and at least a part other than the part is pressed against a waist band or a belt of the user's clothes. Performing the measurement process based on the variation
The biological information measuring device according to any one of claims 1 to 7.
The controller has a state in which a part of the biological information measuring device is pressed against the side of the body and at least a part other than the part is pressed toward the center of the body rather than the side. Performing the measurement process based on the variation detected in
The biological information measuring device according to any one of claims 1 to 7.
In the controller, a part of the biological information measuring device is pressed against the lower abdomen side of the trunk, and at least a part other than the part is pressed toward the head side of the trunk rather than the lower abdomen side. Performing the measurement process based on the variation detected in the detected state;
The biological information measuring device according to any one of claims 1 to 7.
The biological information is biological information of the user's fetus,
The biological information measuring device according to any one of claims 1 to 10.
A display unit for displaying information on the measurement process;
The biological information measuring device according to any one of claims 1 to 11.
An audio output unit that outputs a sound indicating that the fluctuation is detected by the gyro sensor;
The biological information measuring device according to any one of claims 1 to 12.
Pressed against the body through an elastic member,
The biological information measuring device according to any one of claims 1 to 13.
The gyro sensor detects a motion factor processed as a self-control factor,
The controller performs a measurement process of the user's biological information based on the motion factor detected due to a change in the user's torso.
The biological information measuring device according to any one of claims 1 to 14.
A biological information measuring method by a biological information measuring device including a gyro sensor,
In a state where the biological information measuring device is pressed against a user's torso, a change in the torso is detected by a gyro sensor,
Based on the detected variation, a measurement process of the user's biological information is performed.
Biological information measurement method.
The gyro sensor detects a motion factor processed as a self-control factor,
Based on the motion factor detected due to the fluctuation, performs a measurement process of the user's biological information,
The biological information measuring method according to claim 16.
A biological information measuring system comprising a first device and a second device,
The first device includes a gyro sensor that detects a change in the body while the first device is pressed against a user's body.
The second device includes a controller that performs a measurement process of the user's biological information based on the detected variation.
Biological information measurement system.
The gyro sensor detects a motion factor processed as a self-control factor,
The controller performs a measurement process of the user's biological information based on the motion factor detected due to the variation.
The biological information measuring system according to claim 18.