JP6536021B2 - Biological information measuring device - Google Patents

Description

  The present invention relates to a biological information measuring device which noninvasively detects various biological information from a finger of a human body.

  There are known various types of biological information measuring devices that measure predetermined physiological information (biological information) from a living body in order to know the state of the living body. For example, a sphygmograph measures pulse waves and the like of a living body, and for example, a pulse oximeter measures blood oxygen saturation and heart rate of a living body, and for example, a cardiac output meter The stroke volume is measured, and for example, a blood glucose meter measures the blood glucose level of a living body. There is a photoelectric method as one method of measuring biological information. The living body information measuring device using this photoelectric method measures predetermined living body information by, for example, emitting and receiving light on the finger of a living body.

  As such a biological information measurement 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 an apparatus main body having a finger placement part and two power storage parts for supplying power to the device main body, and the power storage part corresponds to the finger placement part in the device main body. It is housed in the apparatus main body so as to be disposed over substantially the entire length in the finger insertion and removal direction in which the finger is inserted and removed.

Japanese Patent Application Publication No. 2005-501589

  However, in Patent Document 1, due to the weight of the two power storage units, when the finger is inserted into the finger placement unit and the finger is attached to the device, a considerable weight is applied to the attached fingertip, and hence the weight of the attached fingertip As a result, there is a problem that the finger may feel tired.

  An object of the present invention is to provide a biological information measuring device capable of reducing the feeling of fatigue of a finger worn.

A biological information measuring apparatus according to an aspect of the present invention includes an apparatus main body configured to measure biological information, an electricity storage unit supplying power to the apparatus main body, and a power receiving charging unit charging the electricity storage unit by a noncontact charging method. with the door, the apparatus main body, the finger placement portion for the subject's finger is placed so as to measure the biological information and, while in contact with the fingertip disposed in the end those finger contact portion of the finger placement portion And the finger placement unit is configured such that the finger tip of the finger is located at one end of the finger placement unit and the finger is placed along the direction from the one end to the other end, and The direction from the one end to the other end of the finger placement portion substantially matches the direction from the one end to the other end of the device body, and the storage portion is one of the finger placement portions in the storage portion. The center of the length in the direction from one end to the other end is From the one end of the finger placement portion as the center of the direction of length along the other end serving as the other end side of the finger placement portion is housed in the apparatus main body, the power receiving charging unit, an electromagnetic from the magnetic field The apparatus main body includes a power receiving coil that generates an electromotive force by induction, and the power receiving coil is disposed at the one end of the device main body with the center of the power receiving coil being located closer to the one end of the device main body than the fingertip contact portion. It is characterized by being stored .

According to this, in the power storage unit, the center of the length in the direction along one end to the other end of the finger placement unit in the power storage unit is the length in the direction along the other end from one end of the finger placement unit in the device body Since the device is stored in the apparatus main body so that the other end of the finger placement unit is closer to the center than the center, the weight of the power storage unit when the finger is placed in the finger placement unit is more than the fingertip of the finger placed in the finger placement unit It is possible to apply more to the other end of the placement portion of the finger. Thus, 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 addition, even when heat is generated in the power receiving coil when the power storage unit is charged by the power receiving and charging unit, the heat can be hardly transmitted to the finger inserted in the finger placement unit. Thus, the power storage unit can be charged without considering the influence of the heat generated in the power receiving coil on the finger inserted in the finger placement unit, which can be convenient to use.

  In another aspect, in the biological information measurement device, the device body portion includes a first housing and a second housing connected to the first housing, and the finger placement portion includes the first housing and the second housing. The second housing is formed between the second housing and the second housing, and the second housing is movably connected to the first housing so as to widen and narrow the finger placement portion (i.e., can hold the finger); Is a charge and discharge unit that charges and discharges electric power and can be charged according to a non-contact charge method, and the charge and discharge unit is housed in any one of the first housing and the second housing I assume.

  According to this, since the charge / discharge unit is accommodated in any one of the first housing and the second housing and can be charged by the non-contact charging method, a replacement opening or the like for replacing the storage unit is provided. It is not necessary and can be made more waterproof.

  In addition, the first housing and the second housing having waterproof properties may be connected to each other, and the finger arrangement portion in the charge / discharge portion is closer to the center in the direction along one end of the finger arrangement portion in the device main body It can be easily formed so that the center of the length in the direction from one end to the other end is on the other end side of the finger placement portion. Therefore, it can be suitable for what has the 1st housing and the 2nd housing which are connected mutually.

  In another aspect, in the biological information measurement device, the device main body portion includes a fingertip contact portion that abuts with a fingertip disposed at one end of the finger placement portion, and the storage portion includes the finger placement portion One end and the other end of the power storage unit in a direction along one end to the other end of the finger placement unit on the other end side of the finger placement unit in a direction along the one end to the other end of the finger placement unit It is characterized in that it is arranged as follows.

  According to this, the weight of the power storage unit when the finger is arranged in the finger arrangement unit can be applied more reliably to the other end side portion of the finger arrangement unit than the finger tip of the finger arranged in the finger arrangement unit 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, Te the biological information measuring apparatus odor, before Symbol receiving coil is characterized in that it is held on one surface of a magnetic sheet having flexibility is accommodated in the apparatus body.

  According to this, the receiving coil becomes thin and lightweight, and the entire device after incorporating the receiving coil can be easily balanced, and furthermore, the overall size and weight of the device incorporating the receiving coil can be reduced. Can be achieved.

  The biological information measuring device of the present invention can reduce the fatigue of the worn finger.

It is a perspective view of a living body information measuring device of the present invention. It is a rear view of the biometric information measuring apparatus of FIG. It is sectional drawing of the biometric information measuring apparatus of FIG. (A) is a side view of the 1st covering member used for a 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 the 2nd covering member used for a living body information measuring device of Drawing 1, (b) is the top view, (c) is a bottom view, (d) is a front view is there. (A) is a side view in the state where the 1st covering member and the 2nd covering 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 biometric information measuring device by the charging device. It is a sectional view of a living body information measuring device of other embodiments. 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 by the charging device the biometric information measuring apparatus of other embodiment of FIG.

  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 in 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 mounted on a finger (for example, a finger or the like) of a living body, and irradiates a predetermined measurement light to the finger of the living body, and the inside of the finger based on the measurement light It is a photoelectric type device which receives the detection light which came from and obtains predetermined biological information based on the light reception result. The predetermined biological information is, for example, a pulse wave of a living body, blood oxygen saturation, pulse rate, cardiac output, and blood sugar level.

  The living body information measuring apparatus LM according to this embodiment includes a substantially rectangular parallelepiped device body 100 for measuring living body information, and a charge / discharge unit (power storage unit) 47 (shown in FIG. 3) for supplying power to the device body 100. Is equipped.

  As shown in FIGS. 1 to 3, the apparatus main body 100 includes a first housing 1 that defines a substantially sealed first storage portion 10 and a second that defines a substantially sealed second storage portion 20. The communication unit 3 includes a housing 2, a communication hole 33 communicating the first storage unit 10 and the second storage unit 20, and a measurement unit 4 for measuring biological information.

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

  Further, the first housing body 11 is provided with a fitting recess 11 e in which the first covering member 12 is fitted. The fitting recess 11 e is formed on the inner circumferential surface of the first housing main body 11 in the vicinity of the first opening 11 a so as to be recessed from the inner circumferential surface over the entire circumference.

  Further, the first housing main body 11 is provided with a display portion 11c and an operation portion 11d on the upper wall surface 11b opposed to the first opening 11a. The display unit 11 c is a device that displays the operation state of the biological information measurement device LM, and is, for example, an LED in the present embodiment. The LED as the display unit 11c changes the light emission color (for example, red, green, blue and the like) and the lighting state (for example, continuous lighting, blinking and lighting and the like) to display the operation state of the biological information measuring device LM. In the present embodiment, the operation state includes a measurement state under measurement, a charge state under charge, and a charge completion state under 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 the measurement result (for example, the value of blood oxygen saturation etc.) input from the operation unit 11d. It may be

  The operation unit 11 d is, for example, an apparatus for inputting a predetermined operation to the biological information measurement device LM, and is, for example, one or more input switches to which a predetermined function is assigned. More specifically, in the present embodiment, the operation unit 11 d is a push button type power switch for turning on the power to start measurement.

  In this embodiment, the first covering member 12 is made of an elastic synthetic resin, and as shown in FIG. 4, the first opening 11a of the first housing main body 11 can cover the entire first opening 11a. It is formed in a rectangular shape in plan view of substantially the same shape as the above.

  The first covering member 12 includes a first finger placement forming concave portion 12a, a fingertip contact portion 12b, and an irradiation portion holding portion 12c for holding an irradiation portion 41 (see FIG. 3) of the measurement portion 4 described later. A first communicating portion holding portion 12d holding a first communicating portion 31 of the communicating portion 3 described later, and a first covering member fitting convex portion 12g for fitting the first covering member 12 to the first housing main body 11 Is equipped.

  The first finger placement forming recess 12 a forms the finger placement portion 5 together with the second finger placement forming recess 22 a of the second covering member 22 described later, and the longitudinal direction of the first covering member 12 (X− From the front end face on the X direction side to the rear end face (Y direction side) of the figure in the Y direction) so as to be concaved upward in a curved shape (circular arc shape) from the fingertip contact portion 12b, For example, the back side of the finger can be placed.

  The fingertip contact portion 12 b is in contact with the fingertip disposed in the finger placement portion 5 to constantly limit the amount of placement of the finger on the finger placement portion 5 at a constant level, and the lower surface (thickness) of the first covering member 12 It is formed to project from the one surface in the longitudinal direction to the second housing 2 side which is the lower side.

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

  The irradiation unit holder 12 c is provided with an irradiation unit exposure hole 12 e circularly penetrated from the upper surface to the lower surface of the first covering member 12.

  The first communicating portion holding portion 12 d is disposed on the opposite side of the first finger placement forming concave portion 12 a across the fingertip contact portion 12 b in the longitudinal direction of the first covering member 12. The first communicating portion holding portion 12 d is provided with a through hole 12 f which 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 is provided to protrude from the side surface of the first covering member 12 over the entire circumference of the outer periphery of the first covering member 12.

  As shown in FIG. 3, the first covering member 12 configured in this manner is configured such that the first fitting convex portion 12 g is fitted to the first fitting recess 11 e of the first housing main body 11. The covering member 12 is assembled to the first housing body 11. In the assembled state, the first covering portion 10 substantially sealed is partitioned between the first covering member 12 and the first housing main body 11.

  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 second housing body 21 has a substantially rectangular parallelepiped shape, and has a second opening 21 a formed by opening a surface facing the first housing 1.

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

  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 of the second housing main body 21 can cover the entire second opening 21a. It is formed in a rectangular shape in plan view of substantially the same shape as 21a.

  The second covering member 22 includes a second finger placement concave portion 22a, a light receiving portion holding portion 22c holding 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. The holding portion 22 d for the second communication portion held and the fitting convex portion 22 g for the second covering member for fitting the second covering member 22 to the second housing main body 21 are provided.

  The second finger placement forming recess 22 a forms the finger placement portion 5 together with the first finger placement forming recess 12 a of the first covering member 12 as described above, and the first covering in the second covering member 22 is formed. The upper surface (one surface in the thickness direction) facing the member 12 is recessed on the lower surface side opposite to the first finger placement forming recess 12a at a position facing the first finger placement forming recess 12a, and the cross section is curved It forms in the shape (arc shape), for example, the abdomen side of the finger is arranged 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.

  Further, the light receiving portion holding portion 22c is provided with a light receiving portion exposure hole 22e which is penetrated 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 22 d includes a through hole 22 f which is penetrated in a rectangular shape from the upper surface to the lower surface of the second covering member 22.

  As shown in FIG. 3, the second covering member 22 configured as described above is engaged with the second covering concave portion 21 e of the second housing main body 21 by fitting the second fitting convex portion 22 g to the second covering member 22. The member 22 is assembled to the second housing body 21. In the assembled state, the second covering portion 20 substantially enclosed by the second covering member 22 and the second housing main body 21 is partitioned.

  Further, as described above, the second housing 2 in which the second covering member 22 and the second housing main body 21 are assembled, and the first housing 1 in which the first covering member 12 and the first housing main body 11 are assembled are: , And are rotatably attached to each other.

  Specifically, as shown in FIGS. 1 to 3, in a state where the first covering member 12 and the second covering member 22 are disposed to face each other with a predetermined distance, the longitudinal direction of the first housing body 11 (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 main body 21 are respectively supported by the shaft member 15, and the first housing 1 and the second housing 2 Is pivotable about a pivot axis along the width direction formed by the shaft member 15.

  Further, by assembling the first housing 1 and the second housing 2, the finger placement portion 5 is formed between the first finger placement forming recess 12 a and the second finger placement forming recess 22 a. Ru.

  The finger placement unit 5 thus formed has one end of the finger placement unit 5 disposed on the fingertip contact unit 12b of the device body 100, and the direction along the other end from the one end of the finger placement unit 5 is the device The other end of the finger placement portion 5 is formed on the other end of the device main body 100 so as to coincide with the direction (X-Y direction) along one longitudinal end of the main body 100 and the other end. .

  In this embodiment, the finger placement unit 5 is provided with a finger insertion slot 51 on the other end surface 1a in the longitudinal direction of the device body 100, and from the finger insertion slot 51 toward one end of the device body 100 in the longitudinal direction The finger is formed in the region up to the fingertip contact portion 12 b on the Y direction side, and the finger of the subject is inserted from the finger insertion port 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.

  Then, the finger placement portion 5 is operated by pressing the rear end portions of the first housing 1 and the second housing 2 in the direction in which the rear ends approach each other, for example, one around the rotation axis formed by the shaft member 15 Rotates with respect to the other, thereby expanding the finger insertion opening 51. Further, when the pressing operation is stopped, the finger insertion opening 51 is returned to the original state by a biasing member (not shown) provided in the apparatus.

  Next, the communication unit 3 will be described. The communication portion 3 is made of an elastic body, and as shown in FIGS. 3 to 6, a rectangular cylindrical first communication portion 31 having a first communication hole 31a and a rectangular cylinder having a second communication hole 32a. And a second communication portion 32 in the form of a circle.

  As shown in FIG. 4, in the first communication portion 31, the upper end (one end) thereof matches the holding portion 12 d for the first communication portion of the first covering member 12 so that the first communication hole 31 a and the through hole 12 f coincide with each other. Is linked to In this embodiment, the first communication portion 31 is formed of the same material as the first covering member 22 by integral molding with the first covering member 12 so that one end of the first communicating portion 31 is the first covering member 12. The first communication portion holding portion 12d is connected to the first communication portion holding portion 12d.

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

  As shown in FIG. 5, the second communication portion 32 is extended 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 engageable with and disengageable from the engaging portion 31b is provided on the inner periphery of the tip end portion.

  The lower end (the other end) of the second communication portion 32 is connected to the second communication portion holder 22 d of the second covering member 22 such that the second communication hole 32 a and the through hole 22 f coincide with each other. .

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

  Then, as shown in FIG. 3 and FIG. 6, the first communicating portion 31 and the second communicating portion 31 are engaged by engaging the engaging portion 31b of the first communicating portion 31 and the engaged portion 32b of the second communicating portion 32. The communication portion 32 forms one communication portion 3 extending between the first housing 1 and the second housing 2 between the first housing 1 and the second housing 2. Further, the first housing portion 10 of the first housing 1 and the second housing portion 20 of the second housing 2 communicate with each other through the communication hole 33.

  Further, the communication portion 3 is disposed such that an axial center 15 a of a rotational shaft of the first housing 1 and the second housing 2 is perpendicular to the extending direction of the communication portion 3 and passes through the communication portion 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 and 43, a control calculation unit 44, a power reception and charging unit 45, a wireless communication unit 46, and an inter-housing connection unit 48. Prepare.

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

  The irradiation unit 41 is connected to the control calculation unit 44, and irradiates measurement light of a predetermined wavelength according to the control of the control calculation unit 44. The irradiation unit 41 is held by the irradiation unit holding unit 12 c of the first covering member 12 and is stored in the first storage unit 10.

  The light receiving unit 42 is connected to the I / V conversion unit 43, receives the detection light, and outputs a light reception result (a current obtained by photoelectric conversion of the detection light) to the I / V conversion unit 43. The detection light is obtained by the measurement light passing through a part of the living body to be measured, for example, a finger, or by the measurement light reflecting off the part of the living body (a finger in this example). For this reason, the irradiating unit 41 and the light receiving unit 42 are appropriately arranged such that they can use reflected detection light in an appropriate arrangement relationship (for example, facing arrangement, separation and juxtaposition, etc.) so as to use transmitted detection light. They are respectively arranged in a relation (for example, adjacent juxtaposition etc.). In the living body information measurement apparatus LM according to the present embodiment, the irradiation unit 41 and the light receiving unit 42 are disposed to face each other at a predetermined interval so as to use transmission detection light (opposing arrangement) .

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

  In addition, measurement light is light of the wavelength which can detect the said predetermined biological information and blood oxygen saturation in this embodiment. More specifically, when blood oxygen saturation is detected using the difference in absorbance between hemoglobin and oxygenated hemoglobin according to the wavelength, the measurement light is, for example, red light, infrared light, etc. 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 driving circuit, and the light receiving unit 42 includes a light receiving optical system, for example, a photoelectric conversion element such as a silicon photodiode It comprises the peripheral circuit. As described above, the irradiating unit 41 and the light receiving unit 42 irradiate a part of the living body with a predetermined measurement light, and obtain predetermined biological information of detection light coming from within the part of the living body based on the measurement light. In order to use it for this purpose, it constitutes an irradiation and reception unit that receives light.

  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 a current generated by photoelectrically converting the detection light by the light receiving unit 42. Is converted to 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 unit of the biological information measurement device LM according to the function of each unit. Therefore, the control calculation unit 44 controls the measurement operation of the measurement main body unit. The control calculation unit 44 obtains predetermined biological information based on the light reception result of the light receiving unit 42 through the I / V conversion unit 43 in the measurement main unit, and in this embodiment, the second storage unit 20 Housed in

  Such a control operation unit 44 includes, for example, a microcomputer including a central processing unit (CPU), a memory, and peripheral circuits thereof. As shown in FIG. 7, the control operation unit 44 functionally includes a first control unit 44 a and a biological information operation unit 44 b by executing a program. The first control unit 44a is for controlling each part of the biological information measurement device LM according to the function of each part.

  The first control unit 44a stops the measurement operation of the measurement main unit while the charge / discharge unit 47 is being charged by the power reception / charging unit 45, and the charge / discharge unit 47 is completely charged by the power reception / charging unit 45. Power off. The living body information calculation unit 44b is for obtaining predetermined living body information based on the light reception result (photoplethysmogram signal) of the light receiving unit 42 in the measurement main body unit. As a calculation method of blood oxygen saturation, which is an example of biological information, known conventional means disclosed in, for example, JP-A-1-153139 and JP-A-2007-167184 can be used.

  The wireless communication unit 46 is stored in the first storage 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, there is no need to mount a configuration for analyzing and storing the biological information in the biological information measurement device LM, and as a result, Elimination, miniaturization, power saving and cost reduction of the display device can be realized. The wireless communication unit 46 may transmit the light reception result obtained by the light receiving unit 42 of the measurement main unit as it is to an external device. As a result, the biometric information calculation unit 44b of the control calculation unit 44 can be omitted.

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

  In this embodiment, as shown in FIG. 3, the power receiving coil 45 c is located on the other end side of the device main body 100 in the longitudinal direction, with the center O 1 opposite to the finger insertion opening 51 than the fingertip contact part 12 b. To be accommodated in the second housing 2.

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

  Next, the inter-storage section connection section 48 will be described. The inter-accommodating part connecting part 48 electrically connects a part of the measuring part 4 accommodated in the first accommodating part 10 and the other part of the measuring part 4 accommodated in the second accommodating part 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, while the control calculation unit 44 and the I / V conversion as described above. The portion 43, the power receiving and charging portion 45, the power receiving coil 45c, and the peripheral circuit 45d are housed in the first housing portion 10.

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

  The inter-housing connecting portion 48 in this embodiment is configured of a flexible substrate having flexibility.

  The charge / discharge unit 47 is connected to the power reception / charging unit 45 and, for example, each unit in the living body information measurement device LM, such as the irradiation unit 41, the display unit 11c, the control calculation unit 44, and the wireless communication unit 46, The power is received by the power received by the charging unit 45, and the power is supplied to the units that require power in the biological information measurement device LM. The charge / discharge unit 47 includes, for example, a secondary battery such as a nickel-cadmium battery, a nickel-hydrogen battery, and a lithium ion battery.

  In this embodiment, one end 47a of the charge / discharge unit 47 in the direction (X-Y direction) along one end to the other end of the finger placement unit 5 is the longitudinal direction of the device body 100 in this embodiment. The other end 47 b of the charge / discharge unit 47 in the direction (X-Y direction) along one end to the other end of the finger placement unit 5 is the other end in the longitudinal direction of the device body 100. They are respectively disposed on the end side finger insertion port 51 side and stored in the first storage portion 10.

  In charge / discharge unit 47, center O3 of one end 47a and the other end 47b in the direction along one end to the other end of finger arrangement unit 5 in charge / discharge unit 47 is along the longitudinal direction of device body 100. It is arranged to be closer to the finger insertion port 51 on the other end side of the apparatus main body 100 than the center O2 of the length L1 in the direction (direction from one end to the other end of the finger arrangement part 5).

  In this embodiment, the charge / discharge unit 47 is disposed such that the one end 47a and the other end 47b are closer to the finger insertion port 51 on the other end side of the apparatus main body 100 than the fingertip contact part 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 reception unit of the power reception charging unit described above. 45b and peripheral circuits 45d are mounted.

  Then, such a biological information measuring device LM is combined with a charging device CM for charging the biological information measuring device LM by the non-contact charging method to configure a biological information measuring system.

  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 in a non-contact charging manner, and includes, for example, a power transmission coil which is a coil generating a magnetic field, and a peripheral circuit which constitutes a resonant circuit in combination with the power transmission coil. Is 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, for example, a circuit for converting commercial power into power having a predetermined voltage value and current value and supplying the power to the power transmission unit 71 via the second control unit 72, and is, for example, an AC adapter or the like.

  The power transmission unit 71, the second control unit 72, and the power supply unit 73 are housed in a relatively thin substantially rectangular housing 74 as shown in FIG. A recess 221 is formed in the upper surface of the housing 74. When charging the biological information measurement device LM, the biological information measurement device LM is accommodated in the recess 221.

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

  As a result, one of the living body information measurement devices LM rotates with respect to the other with the shaft member 15 as the rotation axis, and the finger insertion port 51 is expanded.

  In this state, the other finger is inserted into the finger placement unit 5 from the finger insertion opening 51, and is inserted until the fingertip abuts on the fingertip contact unit 12b.

  Then, in a state where the fingertip abuts on the fingertip contact portion 12b, the pressing operation of the first housing 1 and the second housing 2 is stopped. As a result, the finger insertion port 51 is returned to the original state by the 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 The finger placement forming recess 22 a clamps the finger inserted in the finger placement unit 5. Therefore, in this state, the finger is fixedly attached to the biological information measuring device LM, and the finger can not move with respect to the biological information measuring device LM.

Then, the operation unit 11d is pressed. As a result, the display unit 11 c lights up, and the measurement can be made, and the blood oxygen saturation (SpO ₂ ) can be measured by the measurement unit of the biological information measurement device LM.

  At this time, the charge / discharge unit 47 is disposed such that the one end 47 a and the other end 47 b of the charge / discharge unit 47 are closer to the finger insertion port 51 on the other end side of the device body 100 than the fingertip contact unit 12 b. In this mounted state, the weight of the charge / discharge unit 47 is applied to a portion closer to the finger insertion port 51 than the finger of the finger disposed in the finger placement unit 5, and the weight of the charge / discharge unit 47 applied to the finger can be reduced. Therefore, the feeling of fatigue on the worn finger can be reduced.

  According to the living body information measuring apparatus LM configured as described above, the charging / discharging unit is accommodated in either one of the first housing 1 and the second housing 2 and can be charged by the non-contact charging method. There is no need to provide a replacement opening or the like for replacing the discharge portion 47, and waterproof can be ensured.

  Further, the apparatus main body 100 includes a first housing 1 and a second housing 2 connected to each other, and the charge / discharge unit 47 is accommodated in one of the first housing 1 and the second housing 2. Therefore, the first housing 1 and the second housing 2 are easily formed to be waterproof. Moreover, it is sufficient to connect the first housing 1 and the second housing 2 having waterproof properties, and the length L1 of the direction (finger insertion and removal direction) along one end to the other end of the finger placement portion 5 in the device body 100 The center O3 of the length L2 in the direction along one end to the other end of the finger placement unit 5 in the charge / discharge unit 47 rather than the center O2 can be easily formed so as to be on the finger insertion port 51 side of the device body 100. Therefore, it can be made suitable for what has the 1st housing 1 and the 2nd housing 2 which are connected mutually.

  Also, since the power receiving coil of the power receiving and charging unit is housed in the apparatus main body such that the center of the power receiving coil is disposed closer to one end of the device main body 100 than the fingertip contact portion, Even when heat is generated in the power receiving coil when the charge / discharge unit is charged, it is possible to make it difficult for the heat to be transmitted to the finger inserted in the finger placement unit. Thus, the charge / discharge unit can be charged without considering the influence of the heat generated in the power receiving coil on the finger inserted in the finger arrangement unit. For example, charging is performed while the finger is arranged in the finger arrangement unit It is also possible and convenient to use.

  In the above embodiment, the power receiving coil 45c is disposed such that the center O1 thereof is on one end side in the longitudinal direction of the apparatus main body 100, which is opposite to the finger insertion port 51 than the fingertip contact portion 12b. However, the present invention is not limited to this form, but can be changed as appropriate. For example, the power receiving coil 45c may be disposed so that the whole thereof is closer to one end in the longitudinal direction of the device main body 100 than the fingertip contact part 12b. Thereby, the heat generated in the power receiving coil 45 c can be further hardly transmitted to the finger inserted in the finger placement unit 5, which is more preferable.

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

  Specifically, the power receiving coil 145 includes a coil portion 145 a and a coil holding member 145 b in the form of a rectangular sheet holding the coil portion 145 a. The coil holding member 145 b is formed of a magnetic sheet having a flexible shape that can be received and bent, and the coil portion 145 a is integrally held on one surface thereof.

  The power receiving coil 145 configured as described above substantially faces the power transmitting coil 222 provided in the charging device CM when the biological information measuring device LM is accommodated in the recess 221 of the charging device CM, It is held by the second housing body 21 of the second housing 2. Note that if the distance between the power receiving coil 145 and the power transmitting coil 222 is reduced when the biological information measuring device LM is accommodated in the recess 221 of the charging device CM, heat generation of the coil portion 145 a can be suppressed. Preferred. Specifically, the distance between the power receiving coil 145 and the power transmitting coil 222 is preferably 4 mm or less.

  By configuring the power receiving coil 145 in this manner, the power receiving coil 145 becomes thin and lightweight, and it becomes easy to balance the entire device LM after the power receiving coil 145 is incorporated. Moreover, the overall size and weight of the device LM incorporating the power receiving coil 145 can be reduced. Further, since the coil holding member 145 b is formed of a magnetic sheet, the heat generation of the coil portion 145 a can be suppressed. The power receiving coil 145 holding the coil portion 145a by the coil holding member 145b made of a magnetic sheet as described above has a center O11 of the device body 100 opposite to the finger insertion port 51 with respect to the finger contact portion 12b. It may be arranged to be one end side in the longitudinal direction, and can be changed as appropriate.

  While the present invention has been properly and sufficiently described above through the embodiments with reference to the drawings in order to express the present invention, those skilled in the art can easily change and / or improve the above embodiments. It should be recognized that it is possible. Therefore, unless a change or improvement implemented by a person skilled in the art is at a level that deviates from the scope of the claims set forth in the claims, the change or the improvement is the scope of the rights of the claim It is interpreted as being included in

DESCRIPTION OF SYMBOLS 1 1st housing 2 2nd housing 3 communication part 4 measurement part 5 finger arrangement | positioning part 12b fingertip contact part 45 power reception charge part 45c, 145 power reception coil 47 charge / discharge part (electric storage part)
100 Main unit

Claims (4)

The apparatus includes: an apparatus main body configured to measure biological information; an electric storage unit supplying electric power to the apparatus main body; and a power receiving charging unit charging the electric storage unit by a non-contact charging method ,
The device body includes a finger placement unit on which a finger of a subject is placed so that the biological information can be measured, and a fingertip contact unit that contacts a fingertip placed at one end of the finger placement unit .
The finger placement unit is configured such that a fingertip of the finger is located at one end of the finger placement unit and the finger is placed along the direction from the one end to the other end, and the finger placement unit It is formed such that the direction along one end to the other end and the direction along one end to the other end of the device body substantially coincide with each other,
The storage unit has a center of a length in a direction along one end to the other end of the finger placement unit in the storage unit and a length in a direction along one end to the other end of the finger placement unit in the device body. It is stored in the device body so as to be closer to the other end of the finger placement portion than the center ,
The power reception charging unit includes a power reception coil that generates an electromotive force from a magnetic field by electromagnetic induction,
The biological information measurement according to claim 1, wherein the power receiving coil is housed in the device main body such that the center of the power receiving coil is disposed closer to the one end of the device main body than the fingertip contact portion. apparatus. The device body comprises 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 movably connected to the first housing so as to widen and narrow the finger placement portion,
The power storage unit is a charge and 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 charge / discharge unit is accommodated in any one of the first housing and the second housing. The device body portion includes a finger tip contact portion that contacts a finger tip disposed at one end of the finger placement portion,
In the storage unit, one end and the other end of the storage unit in a direction along one end to the other end of the finger placement unit are more than the finger contact portion in a direction along one end to the other end of the finger placement unit The living body information measuring apparatus according to claim 1 or 2, wherein the living body information measuring apparatus is arranged to be on the other end side of the finger placement unit. Before Symbol receiving coil, the biological information measuring apparatus according to any one of claim 1 to 3, characterized in that it is housed in the apparatus body is held on one surface of a magnetic sheet having flexibility .

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