JP2019063308A - Organism-related information measurement device - Google Patents

Abstract

To provide an organism-related information measurement device capable of accurate measurement by bringing a target portion for measurement at a temperature suitable for measurement.SOLUTION: An organism-related information measurement device according to one embodiment of the present invention comprises: a light emission/reception unit having a light emission unit for emitting light of a prescribed wavelength toward a target portion of an analyte and a light reception unit for receiving light which has passed through the analyte; and a temperature adjustment unit for adjusting a temperature of a non-target portion other than the target portion. Between the light emission/reception unit and the temperature adjustment unit, a heat insulation part may be arranged. The temperature adjustment unit may comprise at least one of a first heat generator which generates heat by chemical reaction, a second heat generator which generates heat by electrical action, and a heat reservoir. The organism-related information measurement device may further comprise a first substrate on which the light emission/reception unit is arranged, and a second substrate on which the temperature adjustment unit is arranged and which is provided via a space or heat insulation member so that heat is not directly transmitted to the first substrate.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a living body related information measuring device which estimates living body related information of a subject.

  As a device for measuring biological related information such as a pulse rate, there is a device which irradiates light (such as infrared light) to a measurement site and acquires biological related information by the reflected light. By using light, biorelevant information can be obtained in a short time without giving an excessive load to the subject.

  Patent Document 1 discloses an apparatus for measuring a peripheral circulation state of a living body. This device optically detects an increase amount of blood with respect to a predetermined region when the heating device for heating a predetermined region of a living body and the heating device mounted on the predetermined region of the living body start heating And a blood increase amount display means for graphically displaying a change in the increase amount of blood detected by the blood increase amount detection device along a predetermined time axis.

  According to this apparatus, the predetermined part is heated by the heating device, and the change in the blood increase optically detected by the blood increase detector is displayed graphically over time along the predetermined time axis. .

Japanese Patent Application Laid-Open No. 11-104113

  In order to acquire living body related information, it is desirable that the blood circulation of the measurement site is in a natural state. However, for example, when the measurement site is cold and the blood circulation is deteriorated, it is difficult to perform measurement with high accuracy. On the other hand, if the measurement site is directly heated, the temperature of the measurement site may be increased more than necessary, which causes a problem that measurement can not be performed in a state close to natural blood circulation.

  An object of the present invention is to provide a living body related information measuring device capable of performing measurement with high accuracy by making a measurement site close to natural blood circulation.

  A living body related information measuring device according to one aspect of the present invention includes a light emitting unit that emits light of a predetermined wavelength toward a measurement region of a subject, and a light emitting and receiving unit having a light receiving unit that receives light passing through the subject. And a temperature control unit configured to adjust a temperature of a non-measurement site other than the measurement site.

  According to such a configuration, the temperature adjustment by the temperature adjustment unit is not directly performed on the measurement site, but is performed on the non-measurement site. Thereby, the temperature control of the measurement site is indirectly performed by the temperature control of the non-measurement site, and natural blood circulation of the measurement site can be obtained.

  The living body related information measurement apparatus may further include a heat insulating unit provided between the light emitting and receiving unit and the temperature control unit. As a result, even if the measurement site close to the light emitting / receiving unit is close to the non-measurement site to be subjected to temperature adjustment, direct heat transfer from the temperature adjustment unit to the measurement site can be prevented.

  In the living body related information measuring device, the temperature control unit may have at least one of a first heating element that generates heat by a chemical reaction, a second heating element that generates heat by an electrical action, and a heat storage body. Thus, the temperature of the non-measurement site can be adjusted by at least one of the chemical reaction, the electrical action, and the heat storage.

  In the living body related information measurement device, the first base on which the light emitting / receiving unit is disposed, and the temperature control unit are disposed, and provided via a space or a heat shielding member so as not to conduct heat directly with the first base. And two substrates may be further provided. Thus, the heat transfer path can be separated between the light emitting / receiving unit disposed on the first base and the temperature control unit disposed on the second base.

  In the living body related information measuring device, the first base may be made of a material having a light shielding property. Accordingly, it is possible to suppress the light transmitted and reflected by the first base, and to reduce the noise of the signal detected by the light emitting and receiving unit.

  In the living body related information measurement device, the first base may have a recess on which the measurement site is placed. Thus, the measurement site can be placed in the recess and the subject can be held properly.

  In the above-mentioned living body related information measuring device, the recess may have a tapered shape which becomes narrower as it gets deeper. As a result, the subject can be reliably held as the measurement site is deeply inserted into the recess.

  The living body related information measuring apparatus further includes a detection unit that detects a contact between the measurement site and the light emitting and receiving unit, and the temperature adjustment unit is provided to start temperature adjustment when the detection unit detects the contact. Good. Thereby, temperature adjustment can be started when the measurement site and the light emitting and receiving unit come in contact with each other.

  In the living body related information measuring device, the light emitting and receiving unit may be provided to start light emitting and receiving of light after a predetermined time has elapsed since the temperature adjustment by the temperature adjusting unit is started. As a result, the measurement site and the light emitting / receiving unit come into contact with each other to adjust the temperature of the non-measurement site, and after a predetermined time has elapsed, measurement can be performed in a state where the measurement site is in natural blood circulation.

  The living body related information measurement apparatus may further include a notification unit that applies a physical action to the object at a predetermined stage from the start of measurement by the light emitting / receiving unit to the end of measurement. Accordingly, when light is emitted from the light emitting unit and light is received by the light receiving unit via the subject to perform measurement, a physical action is applied to the subject from the notification unit, and thus, from the start of measurement to the end of measurement. The user can be made to recognize predetermined steps.

  According to the present invention, it is possible to provide a living body-related information measurement device capable of performing measurement with high accuracy by making a measurement site close to natural blood circulation.

It is a model perspective view which illustrates the living body related information measuring device concerning a 1st embodiment. (A) And (b) is a schematic diagram which illustrates a sensor module. It is a block diagram which illustrates the composition of a sensor module. (A) And (b) is a schematic cross section which illustrates measurement operation. (A)-(c) is a figure which shows the example of a measurement pulse. It is a perspective view which illustrates the living body related information measuring device concerning a 2nd embodiment.

  Hereinafter, embodiments of the present invention will be described based on the drawings. In the following description, the same members are denoted by the same reference numerals, and the description of the members once described will be omitted as appropriate. Moreover, the description which shows "upper and lower" is used for convenience, in order to demonstrate the relative positional relationship between each member, and does not show an absolute positional relationship.

First Embodiment
FIG. 1 is a schematic perspective view illustrating the living body-related information measurement device according to the first embodiment.
FIGS. 2A and 2B are schematic views illustrating the sensor module.
FIG. 3 is a block diagram illustrating the configuration of the sensor module.

  The biological-related information measurement device 1 according to the present embodiment is, for example, a device that measures information on a substance in blood by bringing the device into close contact with the skin (a finger or the like) of a human body. In the present embodiment, an example will be described in which biological-related information is estimated with the belly of the finger F of the subject S as the measurement site.

  As shown in FIG. 1, the living body related information measurement device 1 includes a sensor module 10 and a temperature adjustment unit 20. The sensor module 10 includes a light emitting / receiving unit 15 provided on the substrate 100 and a control unit 30 provided on the substrate 100. In addition, although the control part 30 is provided in the board | substrate 100 in this embodiment, the control part 30 may be provided in the external apparatus.

  In this embodiment, the belly of a finger (for example, index finger) F is brought into contact with the light emitting / receiving surface 10 a of the light emitting / receiving unit 15 to emit light of a predetermined wavelength toward the belly of the finger F from the light emitting / receiving unit 15 Receive light through F. Biologically relevant information is estimated based on the received light.

  The temperature adjustment unit 20 adjusts the temperature of the non-measurement site other than the measurement site. In the present embodiment, since the belly of the forefinger of the subject S is used as the measurement site, the temperature adjustment unit 20 adjusts the temperature of the other parts such as the middle finger, ring finger, little finger, palm, etc. of the hand. For the temperature control unit 20, at least one of a substance that generates heat due to a chemical reaction (a first heat generating body), one that generates a heat due to an electrical action (a second heat generating body) and a heat storage body are used.

  In the living body related information measurement device 1, the sensor module 10 is disposed on the first base SB1, and the temperature control unit 20 is disposed on the second base SB2. The first base body SB1 and the second base body SB2 are disposed on the base portion SB. The first base body SB1 and the second base body SB2 are spaced apart from each other on the base portion SB. According to such an arrangement, in the present embodiment, when the user places the hand on the living body-related information measurement device 1, the belly of the forefinger is placed on the sensor module 10, and the portion from the middle finger to the outside of the hand is on the temperature control unit 20. It can be placed on the It is preferable that 1st base | substrate SB1 in which the sensor module 10 is arrange | positioned is comprised with the material which has light-shielding property about the part in which the sensor module 10 is arrange | positioned at least.

  When the temperature adjustment unit 20 heats a non-measurement site, a portion other than the forefinger of the hand of the subject S (a part from the middle finger of the hand placed on the temperature adjustment unit 20 (middle finger, ring finger, little finger , Palms etc))). When the non-measurement site is heated by the temperature adjustment unit 20, the blood flow of the measurement site (for example, index finger) is increased by the heating. That is, even if the measurement site is not directly heated by heating the non-measurement site, the blood flow is increased and the blood circulation is naturally improved.

  In the living body related information measuring device 1, the light emitting and receiving unit 15 of the sensor module 10 performs light emission and light reception in a state where the blood flow circulation at the measurement site is naturally improved. As a result, the measurement site can be brought into a state close to natural blood circulation, and living body related information can be obtained with high accuracy.

  In the living body related information measurement device 1, the heat insulation unit 60 may be provided between the sensor module 10 and the temperature adjustment unit 20. The heat insulating unit 60 effectively prevents the heat of the temperature control unit 20 from being transmitted to the measurement site. For example, a gap (space) provided between the first base body SB1 and the second base body SB2 is used as the heat insulating portion 60. The heat transfer path can be separated between the light emitting / receiving unit 15 disposed in the first base body SB1 and the temperature control unit 20 disposed in the second base body SB2 by this gap.

  Further, a heat shield member (not shown) may be embedded in the gap to form the heat insulating portion 60. Since the heat shield member is embedded in the gap, a step due to the gap does not occur, and the hand can be easily placed. Thus, by providing a space or a heat shielding member between the first base body SB1 and the second base body SB2, heat is not directly conducted between the first base body SB1 and the second base body SB2, and the temperature control portion It can suppress that the heat by 20 influences the sensor module 10 directly.

  The concave portion SB1h may be provided in the first base body SB1 on which the sensor module 10 is provided. The concave portion SB1h is provided in a concave shape in which a bulge of the finger F is inserted so as to easily mount the finger F which is a measurement portion. The recess SB1h may have a tapered shape that narrows as it gets deeper. Thus, the subject S can be reliably held by inserting the measurement site deep into the recess SB1h.

  The sensor module 10 may be provided with a notification unit. The notification unit is a portion that applies a physical action to the subject S at a predetermined stage from the start of measurement by the light emitting / receiving unit 15 to the end of the measurement. In the present embodiment, a pressing switch 210 is provided on the back side of the substrate 100 as a notification unit. The sensor module 10 and the pressing switch 210 are housed in a housing 50. The light emitting and receiving surface 10 a of the sensor module 10 is exposed to the front side of the housing 50, and the pressing switch 210 is disposed between the substrate 100 and the bottom of the housing 50.

  The press switch 210 has a button 210a. The button 210a protrudes in a state where no pressing force is applied. The sensor module 10 is supported in the housing 50 by the protruding button 210 a. When the light emitting and receiving surface 10 a of the sensor module 10 is pressed from above, the pressing force pushes the button 210 a of the pressing switch 210. The sensor module 10 is pushed into the housing 50 as much as the button 210 a is pushed.

  When the button 210a of the pressing switch 210 is pressed, a click feeling is generated as an example of the physical action. This click feeling is transmitted to the subject S. The click feeling allows the user to intuitively recognize that the pressing force is suitable for the measurement and that the measurement has been started.

(Block configuration of sensor module)
As shown in FIG. 3, the sensor module 10 includes a light emitting / receiving unit 15 having a pair of light emitting units 11 and a light receiving unit 12 provided between the pair of light emitting units 11. The sensor module 10 may be provided with a control unit 30 and an input / output interface unit 14. Further, the sensor module 10 may be provided with a temperature measurement unit 40.

  The light emitting unit 11 includes a first light emitting element 11 a 1 that emits light including first near infrared light having an emission wavelength of 806 nm or more and 855 nm or less. In addition, the light emitting unit 11 may include a second light emitting element 11 a 2 that emits light including second near infrared light having a light emission wavelength of 755 nm to 765 nm, preferably 758 nm to 762 nm. The first light emitting element 11a1 and the second light emitting element 11a2 are light emitting diode elements and laser elements. In addition, although it is comprised so that 1st near-infrared light and 2nd near-infrared light may be discharge | released from the light emission part 11 in this embodiment, it may be comprised so that the 1st near-infrared light may be discharge | released at least.

  The light receiving unit 12 includes a light receiving element 12 a that receives the first near infrared light emitted from the light emitting unit 11 and passing through the blood flowing through the blood vessel of the subject S and converts it into an electric signal. The light receiving element 12a is, for example, a photodiode. In the present embodiment, the light receiving element 12a receives the second near infrared light as well as the first near infrared light, and has a sensitivity of outputting an electric signal according to the amount of light received.

  The light emitting unit 11 and the light receiving unit 12 are integrated to constitute a light emitting and receiving unit 15. The sensor module 10 may be formed by packaging the light emitting / receiving unit 15 (the light emitting unit 11 and the light receiving unit 12), the control unit 30, the temperature measuring unit 40, and the input / output interface unit 14.

  The light emitting unit 11 includes a drive circuit 11 b that drives the first light emitting element 11 a 1 and the second light emitting element 11 a 2. The light receiving unit 12 also includes an amplifier circuit 12 b that amplifies a light receiving signal output from the light receiving element 12 a. These circuits may be chipped.

  The control unit 30 is configured by a microcomputer. The control unit 30 can transmit a timing signal to the drive circuit 11b of the light emitting unit 11, and can control so that near infrared light is emitted from the first light emitting element 11a1 and the second light emitting element 11a2. Further, the control unit 30 includes an arithmetic unit 31, a memory 32, and a timer 33.

  The control unit 30 converts the amplified light reception signal output from the amplification circuit 12 b of the light reception unit 12 into processable digital signal information using the built-in analog-digital conversion circuit. The calculation unit 31 estimates information on blood passing through the blood vessel of the subject S based on the converted signal information.

  The memory 32 stores various data such as estimated biological related information. The timer 33 measures the operation time of the sensor module 10, that is, the operation time from the start of estimation of the biorelated information. The input / output interface unit 14 performs input / output of information with the outside of the sensor module 10. The input / output interface unit 14 includes a connector, communication means (wireless communication, wired communication) and the like for communicating with an external device (display device, storage device, network).

  In the sensor module 10 having such a configuration, for example, in measurement using the first near-infrared light, hematocrit (Hct) of blood passing through the blood vessel of the subject S, pulsation of blood flow, blood flow volume, The flow velocity can be obtained. Further, in measurement using both the first near infrared light and the second near infrared light, it is possible to obtain blood hemoglobin change (Hb change amount), blood oxygen ratio change (oxygen degree), and the like.

  Here, the absorbances of oxygenated hemoglobin and deoxygenated hemoglobin are equal at a wavelength of 805 nm, and the absorbance of oxygenated hemoglobin is larger than the wavelength of 805 nm than the absorbance of deoxygenated hemoglobin, and is shorter than a wavelength of 805 nm The absorbance of the converted hemoglobin is smaller than the absorbance of the deoxygenated hemoglobin. Therefore, oxygenated hemoglobin is preferentially measured by using light including first near infrared light having a wavelength of 806 nm or more and 855 nm or less, preferably light having a light emission peak in the wavelength range of the first near infrared light. Can.

  And hematocrit (Hct) can be measured from the amount of hemoglobin. In measurement using the sensor module 10 according to the present embodiment, hematocrit (Hct) can be measured with an accuracy of ± 1% or less. Further, since the sensor module 10 can perform measurement at a sampling rate of about 10 milliseconds, it is possible to continuously obtain information on blood.

  In addition, when measurement is performed using light containing light having a wavelength shorter than 805 nm, deoxygenated hemoglobin can be measured preferentially. As such light, light including second near infrared light having a wavelength of 755 nm to 765 nm (preferably 758 nm to 762 nm) is exemplified, and light having an emission peak in the wavelength range of the second near infrared light is preferable. It is illustrated as light. And, from the measurement result by the light including the first near-infrared light and the measurement result by the light including the second near-infrared light, it is possible to derive the blood oxygen ratio change (oxygen degree) or information related thereto is there.

  For example, in measurement using the first near-infrared light, hematocrit (Hct) of blood passing through the blood vessel of the subject S, pulsation of blood flow, blood flow volume, flow velocity, and the like can be obtained. Further, in measurement using both the first near infrared light and the second near infrared light, it is possible to obtain blood hemoglobin change (Hb change amount), blood oxygen ratio change (oxygen degree), and the like.

  The temperature measurement unit 40 measures the temperature of the subject S or the like. When the measured temperature of the subject S exceeds a predetermined threshold, the control unit 30 stops the emission of light from the light emitting unit 11 or stops the measurement. The timer 33 counts the time from the start of measurement (measurement time). When the measurement time counted by the timer 33 exceeds a predetermined threshold, the control unit 30 performs processing such as stopping measurement.

FIGS. 4A and 4B are schematic cross-sectional views illustrating the measurement operation.
FIG. 4 (a) shows the state before pressing, and FIG. 4 (b) shows the state after pressing.
In the illustrated example, the measurement is performed by pressing a finger (for example, a forefinger) F on the living body related information measurement device 1.

  As shown in FIG. 4A, when the finger F is in light contact with the light emitting / receiving surface 10a of the sensor module 10, the button 210a of the pressing switch 210 is not pressed. If the button 210a is not depressed, the operation mode does not change. For example, the measurement is not started.

  As shown in FIG. 4B, when the finger F is pressed against the light emitting / receiving surface 10a of the sensor module 10 with a predetermined force, the button 210a of the pressing switch 210 is pressed, and the sensor module 10 is also pushed into the housing 50. . When the button 210a is pressed, the pressing switch 210 is closed, and the operation mode changes. For example, measurement by the sensor module 10 is started.

  At this time, when the button 210 a of the pressing switch 210 is pressed, a click feeling is generated, and the click feeling is transmitted to the finger F. Thereby, the subject can recognize that the operation mode has changed (for example, measurement has been started) by the click feeling transmitted to the finger F. In other words, it can be understood that the pressing force of the finger F on the light emitting and receiving surface 10a is insufficient when the click feeling is not transmitted to the finger F, and the subject presses the finger F until the click feeling is obtained. .

  The pressing force at which the click feeling can be obtained is determined by the pressing switch 210. The pressing force is a force suitable for measurement of the adhesion between the antinode of the finger F and the light emitting and receiving surface 10a. As a result, when the finger F is pressed until a click feeling can be obtained, the finger F and the light receiving and emitting surface 10a are in close contact with each other in a state suitable for measurement, and the biological information is estimated with high accuracy from the light taken in by the light receiving unit 12 Will be able to

  In the living body related information measurement device 1 according to the present embodiment, the pressing switch 210 may be used as a detection unit. When the button 210a is pushed in by the finger F and the pressing switch 210 is closed, it is detected that the measurement site comes in contact with the light emitting / receiving unit 15. Then, the control unit 30 may control the temperature adjustment unit 20 to start temperature adjustment when the pressing switch 210 is in the closed state. Thereby, temperature adjustment is started when the measurement site and the light emitting and receiving unit 15 come in contact with each other. If the operation of the temperature adjustment unit 20 is stopped until the measurement site and the light emitting and receiving unit 15 come into contact with each other, power consumption can be reduced.

  In addition, after the pressure switch 210 is closed and temperature adjustment is started in the temperature adjustment unit 20, the control unit 30 starts emission of light from the light emitting unit 11 and light reception by the light receiving unit 12 after a predetermined time has elapsed. You may control by. As a result, the measurement site and the light emitting / receiving unit 15 are brought into contact with each other to adjust the temperature of the non-measurement site, and after a predetermined time has elapsed, the measurement of biorelated information in a state where the measurement site becomes a natural blood circulation. Can.

  In the above, an example in which the pressing switch 210 is used as a detection unit is shown, but apart from the pressing switch 210, the fact that the measurement site (for example, the finger F) contacts or approaches the light emitting / receiving unit 15 A sensor for detecting may be provided, and this sensor may be used as a detecting unit.

  For example, a sensor is provided on the light emitting and receiving surface 10a, and the sensor detects that the finger F is in contact with the light emitting and receiving surface 10a. At this stage, temperature adjustment in the temperature adjustment unit 20 is started. Thereafter, when the finger F presses the button 210a of the pressing switch 210 to generate a click feeling, light emission / reception by the light emitting / receiving unit 15 is started and measurement is performed.

  Thereby, as soon as the finger F touches the light emitting / receiving surface 10a, the temperature adjusting unit 20 operates to adjust the temperature of the non-measurement part. After that, the button 210a is pushed in by the pressing force of the finger F, and light emission and measurement are started in a state where a click feeling is generated. At the stage of measurement, the temperature adjustment of the non-measurement site has already been started, and the measurement site has a natural blood circulation. And, when the measurement is started, since the measurement site and the light emitting and receiving surface 10a are in close contact with each other by the pressing force at which a click feeling is obtained, the natural blood circulation and the pressing force suitable for the measurement allow high accuracy. Biorelated information can be obtained.

5 (a) to 5 (c) are diagrams showing an example of a measured pulse.
The pulse wave measured by the sensor module 10 is shown by FIG. 5 (a)-(c) by making a fingertip into a measurement site | part. The horizontal axis in FIGS. 5A to 5C is time, and the vertical axis is a fluctuation value of the heart beat.

  The pulse wave measured in the state (without heating) in which the finger which is a measurement part has cooled is shown by Fig.5 (a). Since the fingertip is cold, it has become a virtual vein from the start of measurement (time 0) to time t1, and it is difficult to estimate living body related information.

  The pulse wave measured in the state which heated the non-measurement site | part is shown by FIG.5 (b). By heating the non-measurement site, blood flow circulation of the fingertip which is the measurement site is improved. The time t2 to the time t3 are pulse waves in this state. If it is a pulse wave shown from time t2 to time t3, estimation of living body related information is possible. From this result, it is understood that blood flow circulation of the fingertip which is the measurement site is improved by heating the non-measurement site without directly heating the fingertip, and it becomes possible to estimate living body related information.

  The pulse wave measured in the state which heated the non-measurement site | part, and also pressed the measurement site | part to the light emission / reception surface 10a is shown by FIG.5 (c). The pressed state is, for example, a state where the button 210a of the pressing switch 210 is pressed until a click feeling is generated. As in the pulse wave shown from time t4 to time t5, by heating the non-measurement site and pressing the measurement site against the light emitting and receiving surface 10a, it is suitable for the improvement and measurement of blood flow circulation of the fingertip which is the measurement site. Pressure is obtained, and it can be seen that the pulse wave is stabilized. As a result, it becomes possible to estimate living body related information with higher accuracy than the pulse wave shown in FIG. 5 (b).

Second Embodiment
FIG. 6 is a perspective view illustrating the living body-related information measurement device according to the second embodiment.
The living body related information measurement device 1B according to the present embodiment is configured such that the sensor module 10 and the temperature adjustment unit 20 can be disposed on one finger F of the subject S. The sensor module 10 is disposed in a cylindrical first holding portion H1 in which an opening H1 h is provided in part as a first base body SB1. Further, the temperature adjustment unit 20 is provided in a cylindrical second holding unit H2 in which an opening H2 h is provided in part as a second base SB2.

  By inserting the tip side of the finger F from the opening H1h of the first holding unit H1, the sensor module 10 is disposed on the fingertip. Further, by inserting the base side of the finger F from the opening H2h of the second holding portion H2, the second holding portion H2 is attached to be separated from the first holding portion H1.

  The first holding unit H1 and the second holding unit H2 may be independent of each other, may be provided via a space, or may be connected via a heat insulating unit 60 therebetween. That is, the first holding portion H1 and the second holding portion H2 are provided so as not to conduct heat directly to each other. By attaching the first holding unit H1 and the second holding unit H2 to the finger F, the state in which the sensor module 10 and the temperature adjustment unit 20 are attached to the finger F can be maintained. Therefore, the user is not restricted in operation by the sensor module 10 and the temperature adjustment unit 20, and can move around with the sensor module 10 and the temperature adjustment unit 20 worn.

  Moreover, in the example shown in FIG. 6, temperature adjustment is performed with the same root portion of the finger F as a non-measurement site, and temperature adjustment is performed here to improve the blood flow circulation of the fingertip which is the measurement site. Therefore, highly accurate measurement of bio-related information can be performed with a fingertip whose blood circulation is improved.

  Moreover, when the first holding unit H1 and the second holding unit H2 are independent of each other, the first holding unit H1 and the second holding unit H2 may be attached to different fingers F, respectively.

  As described above, according to the present embodiment, it is possible to achieve a state close to natural blood circulation without directly adjusting the temperature of the measurement site, and to perform measurement with high accuracy.

  Although the present embodiment has been described above, the present invention is not limited to these examples. For example, although the example which heats a non-measurement site | part was shown in the temperature control part 20, you may cool a non-measurement site | part. Further, the temperature adjustment unit 20 may be provided not only on one side adjacent to the sensor module 10 but also on the left and right sides. Further, although the example of the finger F is shown as the subject S in the above description, it may be a part other than the finger F (for example, a wrist, an arm, an ankle, a trunk, a neck, a head). Furthermore, those skilled in the art may appropriately add, delete, or change the design of the components from the above-described embodiments, or may appropriately combine the features of the respective embodiments, which also have the gist of the present invention. As long as it is included in the scope of the present invention.

1, 1B: living body related information measuring device 10: sensor module 10a: light emitting / receiving surface 11: light emitting part 11a1: first light emitting element 11a2: second light emitting element 11b: drive circuit 12: light receiving part 12a: light receiving element 12b: amplification circuit 14 input / output interface unit 15 light emitting / receiving unit 20 temperature adjusting unit 30 control unit 31 arithmetic unit 32 memory 33 timer 40 temperature measuring unit 50 housing 60 heat insulating unit 100 substrate 210 pressing switch 210a ... button F ... finger H1 ... first holding section H1h ... opening H2 ... second holding section H2h ... opening S ... subject SB ... base section SB1 ... first base SB1h ... concave section SB2 ... second base

Claims (10)

A light emitting / receiving unit having a light emitting unit for emitting light of a predetermined wavelength toward a measurement region of a subject, and a light receiving unit for receiving the light passing through the subject;
A temperature adjustment unit that adjusts the temperature of a non-measurement site other than the measurement site;
Biological related information measurement device equipped with   The living body-related information measurement device according to claim 1, further comprising a heat insulation unit provided between the light emitting and receiving unit and the temperature adjustment unit.   The living body-related information measurement according to claim 1 or 2, wherein the temperature control unit includes at least one of a first heating element that generates heat due to a chemical reaction, a second heating element that generates heat due to an electric action, and a heat storage body. apparatus. A first base on which the light emitting and receiving unit is disposed;
A second base provided with the temperature control unit and provided via a space or a heat shielding member so that heat is not conducted directly to the first base;
The living body related information measuring device according to any one of claims 1 to 3, further comprising   The living body related information measurement device according to claim 4, wherein the first base is made of a material having a light shielding property.   The living body-related information measurement device according to claim 4, wherein the first base has a recess on which the measurement site is placed.   The living body related information measurement device according to claim 6, wherein the recess has a tapered shape that narrows as it gets deeper. It further comprises a detection unit that detects contact between the measurement site and the light emitting / receiving unit
The living body-related information measurement device according to any one of claims 1 to 7, wherein the temperature adjustment unit starts temperature adjustment when the detection unit detects the contact.   The living body-related information measurement device according to any one of claims 1 to 8, wherein the light emitting and receiving unit starts light emission and reception of the light after a predetermined time has elapsed since the temperature adjustment by the temperature adjusting unit is started. .   The living body-related information measurement device according to any one of claims 1 to 9, further comprising a notification unit that applies a physical action to the subject at a predetermined stage from the start of measurement by the light emitting / receiving unit to the end of measurement. .

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