JP2016101344A - Biological information measuring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a biological information measuring device which can reduce the feeling of fatigue of a finger wearing the device.SOLUTION: There are provided a device body part measuring biological information and a charge/discharge part 47 which is housed by the device body part. The device body part is provided with: a finger arrangement part 5; and a fingertip contact part 12b which contact-stops the fingertip inserted in the finger arrangement part 5. The arrangement part 5 is provided with a finger insertion port 51 on one end of the device body part. The charge/discharge part 47 is arranged in the way that one end and the other end in the direction along a finger insertion direction of the finger arrangement part 5 in the charge/discharge part 47 are nearer the finger insertion port 51 than the fingertip contact part 12b.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a biological information measuring device that non-invasively detects various biological information from a human finger.

  In order to know the state of a living body, various types of biological information measuring devices that measure predetermined physiological information (biological information) from the living body are known. For example, a pulse wave meter measures a pulse wave of a living body, for example, a pulse oximeter measures a blood oxygen saturation or a heart rate of the living body, and a cardiac output meter, for example, For example, the blood glucose meter measures the blood glucose level of the living body. One method for measuring biological information is a photoelectric method. A living body information measuring device using this photoelectric method measures predetermined living body information by projecting and receiving light on a finger of the living body, for example.

  As such a biological information measuring device, for example, Patent Document 1 discloses a finger oximeter having a finger grip suspension system. The finger oximeter disclosed in Patent Document 1 includes a device main body unit having a finger placement unit and two power storage units that supply power to the device main body unit, and the power storage unit serves as a finger placement unit in the device main body unit. It is accommodated in the apparatus main body so as to be disposed over substantially the entire length in the finger insertion / extraction direction for inserting / removing fingers.

JP 2005-501589 A

  However, in Patent Document 1, when the finger is placed on the device by inserting the finger into the finger placement unit due to the weight of the two power storage units, a considerable weight is applied to the worn fingertip. As a result, there is a problem that a finger may feel tired.

  An object of this invention is to provide the biological information measuring device which can reduce the fatigue | exhaustion feeling of the finger | toe which mounted | worn.

  A biological information measuring device according to an aspect of the present invention includes a device main body that measures biological information, and a power storage unit that supplies power to the device main body, and the device main body measures the biological information. A finger placement section on which a subject's finger is placed so as to obtain the finger placement section, wherein the fingertip of the finger is positioned at one end of the finger placement section, and the finger extends along the direction from the one end to the other end. The power storage unit is configured such that the center of the length in the direction along the other end from the one end of the finger placement unit in the power storage unit is from one end of the finger placement unit in the device main body unit. It is housed in the apparatus main body so as to be on the other end side of the finger placement portion from the center of the length in the direction along the other end.

  According to this, the center of the length in the direction along the other end from the one end of the finger placement portion in the power storage portion is the length in the direction along the other end from the one end of the finger placement portion in the apparatus main body portion. Since it is stored in the device main body so as to be on the other end side of the finger placement part from the center, the weight of the power storage part when placing a finger on the finger placement part is greater than the fingertip of the finger placed on the finger placement part A large amount can be applied to the portion of the finger on the other end side of the arrangement portion. Thereby, the weight of the power storage unit applied to the fingertip can be reduced, and the feeling of fatigue applied to the attached finger can be reduced.

  In another aspect, in the biological information measuring device, the device main body includes a first housing and a second housing coupled to the first housing, and the finger placement unit includes the first housing. The power storage unit is formed between the second housing and the second housing is movably connected to the first housing so that the finger placement unit can be widened (that is, a finger can be pinched). Is a charging / discharging unit that charges and discharges electric power and can be charged by a non-contact charging method, and the charging / discharging unit is housed in one of the first housing and the second housing. And

  According to this, since the charging / discharging part is stored in either one of the first housing and the second housing and can be charged by the non-contact charging method, a replacement opening for replacing the power storage part is provided. It is not necessary and can be made waterproof.

  Moreover, what is necessary is just to connect the 1st housing and 2nd housing which have waterproofness, and the finger | toe arrangement | positioning part in a charging / discharging part rather than the center of the length in the direction along the other end from the one end of the finger | toe arrangement | positioning part in an apparatus main body part Can be easily formed so that the center of the length in the direction from the one end to the other end is the other end side of the finger placement portion. Therefore, it can be made suitable for the thing provided with the 1st housing and the 2nd housing which are connected mutually.

  In another aspect, in the biological information measuring device, the device main body includes a fingertip contact portion that contacts a fingertip disposed at one end of the finger placement portion, and the power storage portion includes the finger placement portion. One end and the other end of the power storage unit in a direction along the other end from the one end of the finger are closer to the other end side of the finger placement unit than the fingertip contact portion in a direction along the other end from the one end of the finger placement unit. It arrange | positions so that it may become.

  According to this, the weight of the power storage unit when the finger is placed on the finger placement unit can be more reliably applied to the portion on the other end side of the finger placement unit than the fingertip of the finger placed on the finger placement unit. Thus, the weight applied to the fingertip can be reduced more reliably, and the feeling of fatigue applied to the attached finger can be reduced.

  In another aspect, the biological information measuring device further includes a power receiving charging unit that charges the power storage unit by a non-contact charging method, and the device main body is a fingertip disposed at one end of the finger placement unit The finger placement part is formed so that the direction along the other end from one end of the finger placement part and the direction along the other end from the one end of the apparatus main body part substantially coincide with each other. The power receiving and charging unit includes a power receiving coil that generates an electromotive force from a magnetic field by electromagnetic induction, and the power receiving coil is configured such that the center of the power receiving coil is located on the one side of the device main body part rather than the fingertip contact part. It is housed in the apparatus main body so as to be arranged on the end side.

  According to this, even if heat is generated in the power receiving coil when the power storage unit is charged by the power receiving charging unit, the heat can be hardly transmitted to the finger inserted in the finger placement unit. Thereby, the power storage unit can be charged without considering the influence of heat generated in the power receiving coil on the finger inserted into the finger placement unit, and the battery can be conveniently used.

  In another aspect, the biological information measuring device further includes a power receiving charging unit that charges the power storage unit by a non-contact charging method, and the power receiving coil is held on one surface of a flexible magnetic sheet. It is housed in the apparatus main body.

  According to this, the power receiving coil is thin and light, and it becomes easy to balance the entire apparatus after incorporating the power receiving coil, and the entire apparatus incorporating the power receiving coil is reduced in size and weight. Is achieved.

  The living body information measuring device of the present invention can reduce the feeling of fatigue of a worn finger.

It is a perspective view of the biological information measuring device of the present invention. It is a rear view of the biological information measuring device of FIG. It is sectional drawing of the biometric information measuring apparatus of FIG. (A) is the side view of the 1st covering member used for the living body information measuring device of Drawing 1, (b) is the top view, (c) is the bottom view, (d) is the front view is there. (A) is a side view of a second covering member used in the biological information measuring device of FIG. 1, (b) is a plan view thereof, (c) is a bottom view thereof, and (d) is a front view thereof. is there. (A) is a side view of the state which the 1st coating member and the 2nd coating member engaged, (b) is the front view. It is a block diagram which shows the structure of the biometric information measuring apparatus of FIG. 1, and its charging device. It is a perspective view of the state which is charging the biological information measuring device with the charging device. It is sectional drawing of the biometric information measuring apparatus of other embodiment. It is a top view in the state where the receiving coil used for the living body information measuring device of other embodiments of Drawing 9 was stored in the 2nd casing. It is sectional drawing of the state which is charging the biometric information measuring apparatus of other embodiment of FIG. 9 with the charging device.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an external perspective view of the biological information measuring device according to the embodiment, FIG. 2 is a rear view of the biological information measuring device of FIG. 1, and FIG. 3 is a cross-sectional view of the biological information measuring device of FIG.

  The biological information measuring device in the embodiment is a device that measures predetermined physiological information (biological information) set in advance from the living body by being attached to a part of the living body. More specifically, in the present embodiment, the biological information measurement device LM is attached to a biological finger (for example, a finger), irradiates the biological finger with predetermined measurement light, and the inside of the finger based on the measurement light This is a photoelectric device that receives the detection light coming from and obtains predetermined biological information based on the light reception result. The predetermined biological information includes, for example, a biological pulse wave, blood oxygen saturation, pulse rate, cardiac output, blood glucose level, and the like.

  The biological information measuring device LM of this embodiment includes a substantially rectangular parallelepiped device main body 100 that measures biological information, and a charge / discharge unit (power storage unit) 47 (shown in FIG. 3) that supplies power to the device main body 100. It has.

  As shown in FIGS. 1 to 3, the apparatus main body 100 includes a first housing 1 in which a substantially sealed first storage portion 10 is partitioned and a second housing in which a substantially sealed second storage portion 20 is partitioned. The housing 2 includes a communication part 3 having a communication hole 33 that allows the first storage part 10 and the second storage part 20 to communicate with each other, and a measurement part 4 that measures biological information.

  The first housing 1 includes a first housing body 11 and a first covering member 12. The first housing body 11 has a substantially rectangular parallelepiped shape, and has a first opening portion 11 a formed by opening a surface facing the second housing 2.

  Further, the first housing body 11 includes a fitting recess 11e into which the first covering member 12 is fitted. The fitting recess 11e is formed in the vicinity of the first opening 11a on the inner peripheral surface of the first housing body 11 so as to be recessed from the inner peripheral surface over the entire periphery.

  The first housing main body 11 includes a display portion 11c and an operation portion 11d on an upper wall surface 11b facing the first opening portion 11a. The display unit 11c is a device that displays the operating state of the biological information measuring device LM, and is composed of, for example, an LED in this embodiment. The LED as the display unit 11c displays the operating state of the biological information measuring device LM by changing the light emission color (for example, red, green, blue, etc.) and the lighting state (for example, continuous lighting, blinking lighting, etc.). In the present embodiment, the operation state includes a measurement state during measurement, a charge state during charging, and a charge completion state of charge completion. The display unit 11c displays, for example, a display device such as a CRT display, an LCD, and an organic EL display in order to display the operation content and measurement results (for example, blood oxygen saturation value) input from the operation unit 11d. It may be.

  The operation unit 11d is, for example, a device that inputs a predetermined operation to the biological information measuring device LM, and is, for example, one or a plurality of input switches assigned a predetermined function. More specifically, in the present embodiment, the operation unit 11d is a push button type power switch for turning on the power and starting measurement.

  In this embodiment, the first covering member 12 is made of a synthetic resin having elasticity, and as shown in FIG. 4, the first opening 11 a of the first housing body 11 can cover the entire first opening 11 a. Are formed in a rectangular shape in plan view.

  The first covering member 12 includes a first finger placement forming recess 12a, a fingertip abutting portion 12b, and an irradiation unit holding unit 12c that holds an irradiation unit 41 (see FIG. 3) of the measurement unit 4 described later. 12 d of 1st communication part holding parts which hold the 1st communication part 31 of the below-mentioned communication part 3, and fitting convex part 12g for 1st covering members which fit the 1st covering member 12 in the 1st housing body 11 It has.

  The first finger placement formation recess 12a forms a finger placement portion 5 together with a second finger placement formation recess 22a of the second covering member 22 described later. The longitudinal direction (X− From the front end surface on the X direction side of the figure in the Y direction) to the rear end surface (Y direction side), the fingertip contact portion 12b is formed to be recessed upward in a curved shape (arc shape), For example, the back side of the finger can be arranged.

  The fingertip abutting portion 12b is for abutting the fingertip disposed on the finger placement portion 5 to restrict the amount of fingers placed on the finger placement portion 5 at a constant level. It is formed so as to protrude from the one side in the vertical direction) to the second housing 2 side which is the lower side.

  The irradiation portion holding portion 12c is formed at a substantially central portion in the longitudinal direction of the first finger placement forming concave portion 12a on the upper surface (the other surface in the thickness direction) of the first covering member 12.

  The irradiation unit holding unit 12 c includes an irradiation unit exposure hole 12 e that penetrates in a circular shape from the upper surface to the lower surface of the first covering member 12.

  The first communication portion holding portion 12d is disposed on the opposite side of the first finger placement forming concave portion 12a with the fingertip contact portion 12b in the longitudinal direction of the first covering member 12 interposed therebetween. The first communication portion holding portion 12 d includes a through hole 12 f that is penetrated in a rectangular shape from the upper surface to the lower surface of the first covering member 12.

  The first covering member fitting convex portion 12 g protrudes from the side surface of the first covering member 12 over the entire outer periphery of the first covering member 12.

  As shown in FIG. 3, the first covering member 12 configured as described above is configured such that the first fitting convex portion 12 g is fitted into the first fitting concave portion 11 e of the first housing body 11, thereby The covering member 12 is assembled to the first housing body 11. In this assembled state, the first cover member 12 and the first housing body 11 form a substantially sealed first storage portion 10.

  Similar to the first housing 1, the second housing 2 includes a second housing body 21 and a second covering member 22 as shown in FIG. 3. The 2nd housing main body 21 consists of a substantially rectangular parallelepiped shape, and has the 2nd opening part 21a formed by the surface facing the 1st housing 1 being opened.

  Further, the second housing body 21 includes a second fitting recess 21e into which the second covering member 22 is fitted. The second fitting recess 21e is formed in the vicinity of the second opening 21a on the inner peripheral surface of the second housing body 21 so as to be recessed from the inner peripheral surface over the entire periphery.

  As shown in FIG. 5, the second covering member 22 is formed in substantially the same shape as the covering member 12, and the second opening portion of the second housing body 21 can cover the entire second opening portion 21 a. It is formed in a rectangular shape in plan view having substantially the same shape as 21a.

  The second covering member 22 includes a second finger placement forming concave portion 22a, a light receiving portion holding portion 22c that holds a light receiving portion 42 of the measurement portion 4 described later, and a second communication portion 32 of the communication portion 3 described later. A holding part 22d for holding the second communication part and a fitting convex part 22g for second covering member for fitting the second covering member 22 to the second housing body 21 are provided.

  The second finger placement forming recess 22a forms the finger placement portion 5 with the first finger placement formation recess 12a of the first covering member 12 as described above. The upper surface (one surface in the thickness direction) facing the member 12 is recessed at the lower surface side opposite to the first finger placement formation recess 12a at a position facing the first finger placement formation recess 12a. For example, the abdomen side of the finger is placed in the second finger placement forming recess 22a.

  The light receiving portion holding portion 22c is formed at a substantially central portion in the longitudinal direction of the second finger placement forming concave portion 22a on the lower surface (the other surface in the thickness direction) of the second covering member 22.

  The light receiving portion holding portion 22c includes a light receiving portion exposure hole 22e penetrating in a rectangular shape from the upper surface to the lower surface of the second covering member 22 at a position facing the irradiation portion exposure hole 12e.

  The second communication portion holding portion 22 d is disposed at a position facing the first communication portion holding portion 12 d of the first covering member 12. The second communication portion holding portion 22d includes a through hole 22f penetrating from the upper surface to the lower surface of the second covering member 22 in a rectangular shape.

  As shown in FIG. 3, the second covering member 22 configured as described above is configured such that the second fitting convex portion 22 g is fitted into the second fitting concave portion 21 e of the second housing body 21, thereby The member 22 is assembled to the second housing body 21. In this assembled state, the second covering member 22 and the second housing body 21 define a substantially sealed second storage portion 20.

  The second housing 2 in which the second covering member 22 and the second housing body 21 are assembled as described above, and the first housing 1 in which the first covering member 12 and the first housing body 11 are assembled are described. Are attached to each other so as to be rotatable.

  Specifically, as shown in FIGS. 1 to 3, in the state where the first covering member 12 and the second covering member 22 are arranged to face each other with a predetermined distance, the longitudinal direction (X− Both side walls in the width direction of the rear end portion in the Y direction and the rear end portion in the longitudinal direction of the second housing body 21 are respectively supported by the shaft member 15, and the first housing 1, the second housing 2, Is rotatable about a rotation axis along the width direction formed by the shaft member 15.

  In addition, by assembling the first housing 1 and the second housing 2, the finger placement portion 5 is formed between the first finger placement formation recess 12a and the second finger placement formation recess 22a. The

  In the finger placement portion 5 formed in this way, one end of the finger placement portion 5 is placed on the fingertip abutting portion 12b of the device main body 100, and the direction along the other end from the one end of the finger placement portion 5 is the device. It is formed so as to coincide with a direction (XY direction) from one end to the other end, which is the longitudinal direction of the main body portion 100, and the other end of the finger placement portion 5 is formed at the other end of the apparatus main body portion 100. .

  In this embodiment, the finger placement unit 5 includes a finger insertion port 51 on the other end surface 1a in the longitudinal direction of the apparatus main body 100, and extends from the finger insertion port 51 toward one end in the longitudinal direction of the device main body 100 ( (Y direction side) It is formed in a region up to the fingertip contact portion 12 b, and the subject's finger is inserted through the finger insertion opening 51. Therefore, in the finger placement unit 5, the fingertip of the finger is located at one end of the finger placement unit 5, and the finger is placed along the direction from one end of the finger placement unit 5 to the other end.

  For example, the finger placement portion 5 is pressed around the rotation axis formed by the shaft member 15 by pressing the rear ends of the first housing 1 and the second housing 2 in a direction in which the rear ends approach each other. Is rotated with respect to the other, so that the finger insertion opening 51 is expanded. When the pressing operation is stopped, the finger insertion port 51 is returned to its original state by a biasing member (not shown) provided in the apparatus.

  Next, the communication unit 3 will be described. The communication part 3 is comprised from the elastic body, and as shown in FIGS. 3-6, the 1st communication part 31 of the rectangular cylinder shape which has the 1st communication hole 31a, and the rectangular cylinder which has the 2nd communication hole 32a And a second communication part 32 having a shape.

  As shown in FIG. 4, the first communication portion 31 has an upper end (one end) aligned with the first communication portion holding portion 12 d of the first covering member 12 so that the first communication hole 31 a and the through hole 12 f are aligned. It is connected to. In this embodiment, the first communicating portion 31 is formed by integral molding with the first covering member 12 using the same material as the first covering member 22, so that one end of the first communicating portion 31 is the first covering member 12. Are connected to the first communication portion holding portion 12d.

  Further, the lower end (the other end) of the first communication portion 31 extends so as to protrude from the first covering member 12 toward the second covering member 22, and is engaged with the outer periphery of the protruding tip portion. A portion 31b is provided.

  As shown in FIG. 5, the second communication part 32 extends so that the upper end (one end) protrudes upward from the second covering member 22 in the direction of the first covering member 12. An engaged portion 32b that is detachably engaged with the engaging portion 31b is provided on the inner periphery of the distal end portion.

  The lower end (the other end) of the second communication portion 32 is connected to the second communication portion holding portion 22d of the second covering member 22 so that the second communication hole 32a and the through hole 22f are matched. .

  In this embodiment, the second communication portion 32 is formed by integral molding with the second covering member 22 with the same material as the second covering member 22, so that the lower end of the second communicating portion 32 is the second covering member 22. It is connected to the second communicating portion holding portion 22d.

  As shown in FIGS. 3 and 6, the engaging portion 31 b of the first communicating portion 31 and the engaged portion 32 b of the second communicating portion 32 are engaged, whereby the first communicating portion 31 and the second communicating portion 32 are engaged. One communication portion 3 extending from the first housing 1 toward the second housing 2 is formed between the first housing 1 and the second housing 2 by the communication portion 32. In addition, the first storage portion 10 of the first housing 1 and the second storage portion 20 of the second housing 2 communicate with each other through the communication hole 33.

  Further, the communication part 3 is arranged such that the axis 15 a of the rotation shaft of the first housing 1 and the second housing 2 is orthogonal to the extending direction of the communication part 3 and passes through the communication part 3.

  Next, the measurement unit 4 will be described. As shown in FIGS. 3 and 7, the measurement unit 4 includes measurement main body units 41, 42, 43, a control calculation unit 44, a power receiving / charging unit 45, a wireless communication unit 46, and an inter-storage unit connection unit 48. Prepare.

The measurement main bodies 41, 42, and 43 are connected to the control calculation unit 44 and measure predetermined biological information set in advance under the control of the control calculation unit 44. The measurement main body units 41, 42, and 43 output the measurement results to the control calculation unit 44. For the measurement main body portions 41, 42, 43, an appropriate known specific configuration is adopted according to the biological information to be measured. In the present embodiment, blood oxygen saturation (SpO ₂ ) is measured by a photoelectric method, and the measurement main body unit includes an irradiation unit 41, a light receiving unit 42, and a current-voltage conversion unit (I / V conversion unit) 43. Prepare.

  The irradiation unit 41 is connected to the control calculation unit 44 and emits measurement light having a predetermined wavelength in accordance with the control of the control calculation unit 44. The irradiation unit 41 is stored in the first storage unit 10 while being held by the irradiation unit holding unit 12 c of the first covering member 12.

  The light receiving unit 42 is connected to the I / V conversion unit 43, receives the detection light, and outputs a light reception result (current obtained by photoelectric conversion of the detection light) to the I / V conversion unit 43. The detection light is obtained by allowing the measurement light to pass through a part of the living body to be measured, such as a finger, or by reflecting the measurement light from a part of the living body (in this example, the finger). For this reason, the irradiation unit 41 and the light receiving unit 42 are appropriately arranged so as to be able to use the transmitted detection light (for example, facing and spaced apart), or appropriately arranged so that the reflected detection light can be used. They are arranged in a relationship (for example, adjacent juxtaposition). In the biological information measuring apparatus LM in the present embodiment, the irradiating unit 41 and the light receiving unit 42 are arranged so as to face each other with a predetermined interval so that transmitted detection light can be used (opposing arrangement). .

  Specifically, the light receiving unit 42 is held by the light receiving unit holding unit 22 c of the second covering member 22 and stored in the second storage unit 20.

  The measurement light is light having a wavelength capable of detecting the predetermined biological information, in this embodiment, blood oxygen saturation. More specifically, when detecting blood oxygen saturation using the difference in absorbance according to wavelength between hemoglobin and oxygenated hemoglobin, the measurement light is, for example, red light or infrared light. It is. The irradiation unit 41 includes, for example, an irradiation optical system, for example, a light source such as a light emitting diode (LED) and its peripheral circuits such as a drive circuit, and the light receiving unit 42 includes a light receiving optical system such as a photoelectric conversion element such as a silicon photodiode. The peripheral circuit is provided. As described above, the irradiation unit 41 and the light receiving unit 42 irradiate a part of the living body with predetermined measurement light, and obtain predetermined biological information from the detection light coming from within the part of the living body based on the measurement light. Therefore, an irradiation light receiving unit that receives light is configured.

  The I / V conversion unit 43 is stored in the second storage unit 20, is connected to the control calculation unit 44, is input from the light receiving unit 42, and is generated by photoelectrically converting the detection light by the light receiving unit 42. Is converted into a voltage. The converted voltage is output from the I / V conversion unit 43 to the control calculation unit 44.

  The control calculation unit 44 controls each part of the biological information measuring device LM according to the function of each part. Therefore, the control calculation unit 44 controls the measurement operation of the measurement main body unit. This control calculation part 44 calculates | requires predetermined biometric information based on the light-receiving result of the light-receiving part 42 via the I / V conversion part 43 in a measurement main-body part, and in this embodiment, the 2nd storage part 20 is used. It is stored in.

  Such a control calculation unit 44 includes, for example, a microcomputer including a CPU (Central Processing Unit), a memory, and peripheral circuits thereof. As shown in FIG. 7, in the control calculation unit 44, a first control unit 44a and a biological information calculation unit 44b are functionally configured by executing a program. The 1st control part 44a is for controlling each part of living body information measuring device LM according to the function of each part concerned, respectively.

  And the 1st control part 44a stops the measurement operation | movement of a measurement main-body part during charge of the charging / discharging part 47 by the power receiving charging part 45, and complete | finishes charging of the charging / discharging part 47 by the power receiving charging part 45 In addition, the power is turned off. The biological information calculation unit 44b is for obtaining predetermined biological information based on the light reception result (photoelectric pulse wave signal) of the light receiving unit 42 in the measurement main body unit. As a method for calculating blood oxygen saturation, which is an example of biological information, known conventional means disclosed in, for example, Japanese Patent Laid-Open Nos. 1-153139 and 2007-167184 are used.

  The wireless communication unit 46 is housed in the first housing unit 10 and connected to the control calculation unit 44, and transmits a communication signal to an external device in a wireless manner. By transmitting the biological information obtained by the control calculation unit 44 by the wireless communication unit 46, it is not necessary to install a configuration for analyzing and storing the biological information in the biological information measuring device LM. Omission of a display device, miniaturization, power saving, and cost reduction can be realized. Note that the wireless communication unit 46 may transmit the light reception result obtained by the light receiving unit 42 of the measurement main body unit to an external device as it is. Thereby, the biological information calculation unit 44b of the control calculation unit 44 can be omitted.

  The power receiving / charging unit 45 is connected to each of the control calculation unit 44 and the charging / discharging unit 47 and charges the charging / discharging unit 47 by a non-contact charging method. The power receiving charging unit 45 includes, for example, a charging unit 45a and a power receiving unit 45b. The power receiving unit 45b includes a power receiving coil 45c that is a coil for generating an electromotive force from a magnetic field by electromagnetic induction, and a peripheral circuit 45d that is combined with the power receiving coil 45c to form a resonance circuit.

  In this embodiment, as shown in FIG. 3, the power receiving coil 45c has a center O1 on the other end side in the longitudinal direction of the apparatus main body 100 that is opposite to the finger insertion opening 51 with respect to the fingertip contact portion 12b. It is accommodated in the 2nd housing 2 so that it may become.

  The charging unit 45a charges the charging / discharging unit 47 with the power received by the power receiving unit 45b.

  Next, the inter-storage portion connection portion 48 will be described. The inter-storage unit connection unit 48 electrically connects a part of the measurement unit 4 stored in the first storage unit 10 and the other part of the measurement unit 4 stored in the second storage unit 20.

  In this embodiment, as described above, the irradiation unit 41, the wireless communication unit 46, and the charge / discharge unit 47 are stored in the first storage unit 10. On the other hand, as described above, the control calculation unit 44 and the I / V conversion are performed. The unit 43, the power receiving / charging unit 45, the power receiving coil 45 c, and the peripheral circuit 45 d are stored in the first storage unit 10.

  The inter-storage unit connection unit 48 directly or indirectly connects a part of the measurement unit 4 stored in the first storage unit 10 and the other part of the measurement unit 4 stored in the second storage unit 20. One end of the inter-storage portion connection portion 48 is disposed in the first storage portion 10, and the other end of the inter-storage portion connection portion 48 is disposed in the second storage portion 20. The part is inserted into the communication hole 33 of the communication part 3.

  The connecting portion connecting portion 48 of this embodiment is formed of a flexible substrate having flexibility.

  The charging / discharging unit 47 is connected to the power receiving / charging unit 45 and each unit that requires power in the biological information measuring device LM, such as the irradiation unit 41, the display unit 11c, the control calculation unit 44, and the wireless communication unit 46. The battery is charged by the power received by the charging unit 45, and supplies the power to each unit that requires power in the biological information measuring device LM. The charging / discharging unit 47 includes a secondary battery such as a nickel / cadmium battery, a nickel / hydrogen battery, or a lithium ion battery.

  In this embodiment, the charging / discharging unit 47 is configured such that one end 47a of the charging / discharging unit 47 in the direction from the one end of the finger placement unit 5 to the other end (XY direction) is the longitudinal direction of the apparatus main body 100. The other end 47b of the charging / discharging unit 47 in the direction from the one end of the finger placement unit 5 to the other end (XY direction) is the other end in the longitudinal direction of the apparatus main body 100. They are arranged on the finger insertion port 51 side on the end side and stored in the first storage unit 10.

  The charging / discharging unit 47 has a center O3 between one end 47a and the other end 47b in the direction from the one end to the other end of the finger placement unit 5 in the charging / discharging unit 47 along the longitudinal direction of the apparatus main body 100. It is arranged so as to be closer to the finger insertion port 51 side on the other end side of the apparatus main body 100 than the center O2 of the length L1 in the direction (the direction along the other end from the one end of the finger placement section 5).

  In this embodiment, the charging / discharging unit 47 is arranged such that the one end 47a and the other end 47b are closer to the finger insertion port 51 side on the other end side of the apparatus main body 100 than the fingertip contact portion 12b.

  In this embodiment, the main substrate 40 is stored in the second storage unit 20, and the main substrate 40 includes the I / V conversion unit 43, the control calculation unit 44, and the power receiving unit of the power receiving and charging unit described above. 45b, peripheral circuit 45d and the like are mounted.

  Such a biological information measurement device LM constitutes a biological information measurement system in combination with a charging device CM for charging the biological information measurement device LM by a non-contact charging method.

  For example, as shown in FIG. 7, the charging device CM includes a power transmission unit 71, a second control unit 72, and a power supply unit 73. The power transmission unit 71 is a circuit for transmitting power by a non-contact charging method, and includes, for example, a power transmission coil that is a coil that generates a magnetic field, and a peripheral circuit that is combined with the power transmission coil to form a resonance circuit. Configured. The second control unit 72 is connected to the power transmission unit 71 and controls the operation of the power transmission unit 71. The power supply unit 73 is a circuit for converting commercial power into power having a predetermined voltage value and current value and supplying power to the power transmission unit 71 via the second control unit 72, and is, for example, an AC adapter.

  As shown in FIG. 8, the power transmission unit 71, the second control unit 72, and the power source unit 73 are housed in a relatively thin substantially rectangular parallelepiped casing 74. The casing 74 has a recess 221 formed on the upper surface thereof. When charging the biological information measuring device LM, the biological information measuring device LM is accommodated in the recess 221.

Next, the operation of the biological information measuring device LM will be described. In order to measure the blood oxygen saturation (SpO ₂ ) with the biological information measuring device LM, for example, the rear end portions (the other end portions) of the first housing 1 and the second housing 2 approach each other with one hand. Press in the direction to do.

  As a result, the biological information measuring device LM rotates about the shaft member 15 as the rotation axis, and one of the biological information measurement devices LM rotates relative to the other, and the finger insertion opening 51 is expanded.

  In this state, the other finger is inserted into the finger placement portion 5 from the finger insertion opening 51 and inserted until the fingertip hits the fingertip abutting portion 12b.

  And the mutual pressing operation of the 1st housing 1 and the 2nd housing 2 is stopped in the state which the fingertip contacted with the fingertip contact part 12b. Thereby, the finger insertion port 51 is returned to the original state by a biasing member (not shown) provided in the biological information measuring device LM, and the first finger placement forming recess 12a of the first housing 1 and the second housing 2 of the second housing 2 are restored. The finger inserted into the finger placement portion 5 is sandwiched between the finger placement formation recess 22a. Therefore, in this state, the finger is fixedly attached to the biological information measuring device LM, and the finger cannot move relative to the biological information measuring device LM.

Then, the operation unit 11d is pressed. As a result, the display unit 11c is turned on and becomes in a measurable state, and the blood oxygen saturation (SpO ₂ ) can be measured by the measuring unit of the biological information measuring device LM.

  At that time, the charging / discharging unit 47 is arranged such that one end 47a and the other end 47b of the charging / discharging unit 47 are closer to the finger insertion port 51 side on the other end side of the apparatus main body 100 than the fingertip contact portion 12b. Therefore, in this wearing state, the weight of the charging / discharging unit 47 is applied to the portion closer to the finger insertion opening 51 than the fingertip of the finger placed on the finger placement unit 5, and the weight of the charging / discharging unit 47 on the fingertip can be reduced. Therefore, it is possible to reduce the feeling of fatigue on the worn finger.

  According to the biological information measuring apparatus LM configured as described above, the charging / discharging unit is housed in one of the first housing 1 and the second housing 2 and can be charged by a non-contact charging method. It is not necessary to provide a replacement opening for replacing the discharge portion 47, and waterproofing can be ensured.

  The apparatus main body 100 includes a first housing 1 and a second housing 2 connected to each other, and a charge / discharge unit 47 is accommodated in either the first housing 1 or the second housing 2. Therefore, the first housing 1 and the second housing 2 are easily formed to have waterproofness. In addition, the waterproof first housing 1 and the second housing 2 may be connected, and the length L1 in the direction (finger insertion / removal direction) along the other end from one end of the finger placement portion 5 in the apparatus main body 100 is sufficient. It can be easily formed such that the center O3 of the length L2 in the direction along the other end from the one end of the finger placement portion 5 in the charge / discharge portion 47 is closer to the finger insertion port 51 side of the apparatus main body 100 than the center O2. Accordingly, the first housing 1 and the second housing 2 connected to each other can be suitable.

  Further, the power receiving coil of the power receiving and charging unit is housed in the apparatus main body so that the center of the power receiving coil is disposed on one end side of the device main body 100 with respect to the fingertip abutting part. Even if heat is generated in the power receiving coil when the charging / discharging unit is charged, it is difficult to transmit the heat to the finger inserted in the finger placement unit. Accordingly, the charging / discharging unit can be charged without considering the influence of heat generated in the power receiving coil on the finger inserted into the finger placement unit. For example, charging is performed during use when the finger is placed on the finger placement unit. Can also be made convenient.

  In the above-described embodiment, the power receiving coil 45c is arranged so that the center O1 thereof is on one end side in the longitudinal direction of the apparatus main body 100 that is opposite to the finger insertion opening 51 with respect to the fingertip contact portion 12b. However, it is not limited to this form and can be changed as appropriate. For example, the power receiving coil 45c may be arranged so that the entirety of the power receiving coil 45c is closer to one end side in the longitudinal direction of the apparatus main body 100 than the fingertip contact portion 12b. Thereby, the heat generated in the power receiving coil 45c can be made more difficult to be transmitted to the finger inserted in the finger placement portion 5, which is more preferable.

  Also, as shown in FIGS. 9 to 11, the power receiving coil 145 has its center O11 positioned on the other end side in the longitudinal direction of the apparatus main body 100, which is closer to the finger insertion opening 51 than the fingertip contact portion 12b. It may be arranged.

  Specifically, the power receiving coil 145 includes a coil portion 145a and a rectangular sheet-like coil holding member 145b that holds the coil portion 145a. The coil holding member 145b is formed of a magnetic sheet having flexibility that can be bent and bent, and the coil portion 145a is integrally held on one surface thereof.

  And when the biological information measuring device LM is accommodated in the recess 221 of the charging device CM, the power receiving coil 145 configured as described above is substantially opposed to the power transmitting coil 222 provided in the charging device CM. The second housing 2 is held by the second housing body 21. If the distance between the power receiving coil 145 and the power transmitting coil 222 is made small when the biological information measuring device LM is accommodated in the recess 221 of the charging device CM, the heat generation of the coil portion 145a can be suppressed. Is preferable. Specifically, the distance between the power reception coil 145 and the power transmission coil 222 is preferably 4 mm or less.

  By configuring the power receiving coil 145 in this way, the power receiving coil 145 is thin and lightweight, and the entire device LM after the power receiving coil 145 is incorporated can be easily balanced. Moreover, the entire device LM incorporating the power receiving coil 145 can be reduced in size and weight. Further, since the coil holding member 145b is formed of a magnetic sheet, heat generation of the coil portion 145a can be suppressed. The power receiving coil 145 that holds the coil portion 145a with the coil holding member 145b made of the magnetic sheet as described above has the center O11 of the device main body portion 100 on the opposite side of the finger insertion portion 51 from the fingertip contact portion 12b. You may arrange | position so that it may become the one end side of a longitudinal direction, and can change suitably.

  In order to express the present invention, the present invention has been properly and fully described through the embodiments with reference to the drawings. However, those skilled in the art can easily change and / or improve the above-described embodiments. It should be recognized that this is possible. Therefore, unless the modifications or improvements implemented by those skilled in the art are at a level that departs from the scope of the claims recited in the claims, the modifications or improvements are not covered by the claims. To be construed as inclusive.

DESCRIPTION OF SYMBOLS 1 1st housing 2 2nd housing 3 Communication part 4 Measurement part 5 Finger arrangement | positioning part 12b Finger tip contact part 45 Power receiving charging part 45c, 145 Power receiving coil 47 Charging / discharging part (electric storage part)
100 Device body

Claims (5)

A device main body for measuring biological information, and a power storage unit for supplying power to the device main body,
The apparatus main body includes a finger placement unit on which a subject's finger is placed so that the biological information can be measured,
The finger placement portion is configured such that a fingertip of the finger is positioned at one end of the finger placement portion and the finger is placed along the direction from the one end to the other end,
The power storage unit has a length in the direction along the other end from the one end of the finger placement part in the apparatus main body part in the direction along the other end from the one end of the finger placement part in the power storage unit. The biological information measuring device is housed in the device main body so as to be closer to the other end of the finger placement portion than the center. The apparatus main body includes a first housing and a second housing connected to the first housing,
The finger placement portion is formed between the first housing and the second housing,
The second housing is connected to be movable with respect to the first housing so that the finger placement portion can be widened and narrowed.
The power storage unit is a charge / discharge unit that charges and discharges electric power and can be charged by a non-contact charging method,
The biological information measuring apparatus according to claim 1, wherein the charging / discharging unit is housed in one of the first housing and the second housing. The apparatus main body includes a fingertip abutting portion that abuts on a fingertip disposed at one end of the finger arranging portion,
The power storage unit is configured such that one end and the other end of the power storage unit in a direction along the other end from the one end of the finger placement unit are more than the fingertip contact unit in a direction along the other end from the one end of the finger placement unit. The biological information measuring device according to claim 1, wherein the biological information measuring device is disposed so as to be on the other end side of the finger placement portion. A power receiving charging unit for charging the power storage unit by a non-contact charging method;
The apparatus main body includes a fingertip abutting portion that abuts on a fingertip disposed at one end of the finger arranging portion,
The finger placement portion is formed such that the direction along the other end from one end of the finger placement portion and the direction along the other end from the one end of the device main body portion are substantially coincided with each other.
The power receiving charging unit includes a power receiving coil that generates an electromotive force by electromagnetic induction from a magnetic field,
2. The power receiving coil is housed in the device main body so that the center of the power receiving coil is disposed closer to the one end side of the device main body than the fingertip contact portion. The biological information measuring device according to any one of? A power receiving charging unit for charging the power storage unit by a non-contact charging method;
5. The biological information measuring apparatus according to claim 1, wherein the power receiving coil is held on one surface of a flexible magnetic sheet and accommodated in the apparatus main body. 6.

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