WO2014027379A1 - Body water content meter - Google Patents
Body water content meter Download PDFInfo
- Publication number
- WO2014027379A1 WO2014027379A1 PCT/JP2012/005154 JP2012005154W WO2014027379A1 WO 2014027379 A1 WO2014027379 A1 WO 2014027379A1 JP 2012005154 W JP2012005154 W JP 2012005154W WO 2014027379 A1 WO2014027379 A1 WO 2014027379A1
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- WIPO (PCT)
- Prior art keywords
- moisture meter
- main body
- measurement
- unit
- moisture
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4869—Determining body composition
- A61B5/4875—Hydration status, fluid retention of the body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/04—Constructional details of apparatus
- A61B2560/0406—Constructional details of apparatus specially shaped apparatus housings
- A61B2560/0418—Pen-shaped housings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/029—Humidity sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/24—Hygienic packaging for medical sensors; Maintaining apparatus for sensor hygiene
- A61B2562/247—Hygienic covers, i.e. for covering the sensor or apparatus during use
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
- A61B5/0537—Measuring body composition by impedance, e.g. tissue hydration or fat content
Definitions
- the present invention relates to an in-vivo moisture meter that measures the amount of moisture in the living body of a subject.
- Dehydration in the living body is a pathological condition in which water in the living body decreases, and it is often expressed during exercise when high water is discharged from the body due to sweating or body temperature rise or when the temperature is high.
- the water retention ability of the living body itself is reduced, and thus dehydration is more likely to occur than in a normal healthy person.
- body temperature regulation is impaired when water in the body loses 3% or more of body weight.
- body temperature regulation disorder occurs and the body temperature rises, it causes a further decrease in water in the living body and falls into a vicious circle, eventually leading to a disease state called heat stroke.
- Heat stroke has pathological conditions such as heat convulsions, heat fatigue, and heat stroke, and sometimes systemic organ damage may occur. For this reason, it is important to accurately grasp the amount of water in the living body in order to avoid the risk of causing heat stroke.
- the applicant of the present application focuses on the subject's axilla as a part suitable for accurately grasping the amount of water in the living body, and a sensor unit having electrodes disposed on the axilla. Therefore, we are working on the development of an in-vivo moisture meter that calculates the amount of moisture in the living body of a subject by measuring the capacitance between the electrodes.
- FIG. 8 is a diagram showing an example of the moisture meter 800 in the body proposed by the applicant of the present application.
- the moisture meter 800 in a body is provided with the main-body part 810 and the insertion part 820, and the main-body part 810 grasped
- a display unit 812 is arranged on the housing surface of the main body unit 810, and a measurement result 831 and the like are displayed.
- the insertion portion 820 to be inserted into the axilla extends from one end of the main body 810, and is gently curved downward with respect to the main body 810 as a whole.
- a sensor portion 821 is slidably supported on the distal end surface 822 of the insertion portion 820.
- the sensor unit 821 has a sensor head 823 having a surface substantially parallel to the tip end surface 822, and in the direction of the arrow 841b in order to ensure a pressing force for ensuring the close contact of the sensor head 823 with the skin. It is energized. When the sensor head 823 is pressed against the skin of the subject's axilla, the sensor unit 821 slides by a predetermined amount in the direction of the arrow 841a, thereby starting measurement.
- the distal end surface 822 is provided with an opening for sliding the sensor portion 821 in the direction of the arrow 841a.
- 8b in FIG. 8 is a diagram showing a cross-sectional configuration of the distal end region 850 of the insertion portion 820 including the sensor portion 821.
- the opening 851 has a larger opening surface than the sensor head 823 of the sensor unit 821, and a gap 852 is provided between the side surface of the sensor unit 821 and the inner wall surface of the opening 851. Is secured. Thereby, the sensor part 821 can be smoothly slid in the direction of the arrow 841a.
- the in-vivo moisture meter has a structure for ensuring a pressing force that ensures the close contact of the sensor head 823 with the skin in order to accurately measure the amount of moisture in the living body of the subject.
- the present invention has been made in view of the above problems, and an object of the present invention is to improve waterproofness and antifouling properties while maintaining measurement accuracy in an in-vivo moisture meter.
- the moisture meter in the body has the following configuration. That is, A body moisture meter, A body portion formed in a straight line; An insertion portion that is curved and extended from one end of the main body portion; A sensor unit that measures data on moisture in the living body by being fixed to the distal end surface of the insertion unit and contacting the body surface of the subject, A grip portion that covers an outer peripheral surface of the main body portion and slidably supports the main body portion.
- FIG. 1 is a diagram illustrating an external configuration of a moisture meter in the body according to the first embodiment of the present invention and an internal configuration of a gripping portion.
- FIG. 2 is a diagram showing a functional configuration of the moisture meter in the body.
- FIG. 3 is a diagram illustrating a configuration example of a measurement circuit of the moisture meter in the body.
- FIG. 4 is a diagram for explaining the operation of the moisture meter in the body.
- FIG. 5 is a diagram illustrating a data configuration of measurement information.
- FIG. 1 is a diagram illustrating an external configuration of a moisture meter in the body according to the first embodiment of the present invention and an internal configuration of a gripping portion.
- FIG. 2 is a diagram showing a functional configuration of the moisture meter in the body.
- FIG. 3 is a diagram illustrating a configuration example of a measurement circuit of the moisture meter in the body.
- FIG. 4 is a diagram for explaining the operation of the moisture meter in the body.
- FIG. 6 is a diagram showing an external configuration of the moisture meter in the body according to the second embodiment of the present invention, an external configuration of the moisture meter in the body, and an internal configuration of the gripping unit.
- FIG. 7 is a diagram showing the external configuration of the moisture meter in the body according to the third embodiment of the present invention, the external configuration of the moisture meter in the body, and the internal configuration of the gripping portion.
- FIG. 8 is a diagram showing the external configuration of the moisture meter in the body and the configuration of the tip region of the moisture meter in the body.
- FIG. 1 is a diagram showing the external configuration of the moisture meter 100 in the body according to the first embodiment of the present invention and the internal configuration of the gripping portion.
- the moisture meter 100 in the body detects the amount of moisture in the body of the subject by bringing the sensor part into contact with the skin of the axilla, which is the body surface of the subject, and detecting a physical quantity corresponding to the electrical signal supplied in the sensor part To do.
- the wetness of the skin of the axilla is detected by measuring the capacitance of the subject as the physical quantity (data on the moisture in the living body), and the moisture content in the living body Is calculated.
- the moisture meter 100 in a body is a hollow and bottomed body which covers the main-body part 110, the insertion part 120 extended curvedly from the end of the main-body part 110, and the tail part side of the main-body part 110. And a cylindrical grip 130.
- the main body 110 has an upper surface 114, a lower surface 115, and side surfaces 116 and 117 that are formed substantially parallel to the major axis direction (not shown), respectively, and are formed in a straight line as a whole.
- Various user interfaces are arranged on the surface of the casing of the main body 110, and an electronic circuit for calculating the amount of moisture in the body is housed inside the casing.
- a power switch 111 and a display unit 112 are shown as user interfaces.
- the power switch 111 is disposed in a recess on the upper surface 114 of the main body 110.
- the power switch 111 is arranged in the recess in this way, an erroneous operation of the power switch 111 can be prevented.
- the power switch 111 is turned on, power supply from the power supply unit 211 (FIG. 2), which will be described later, to each part of the moisture meter 100 in the body is started, and the moisture meter 100 in the body enters an operating state.
- the display unit 112 is arranged on the side surface 117 of the main body unit 110 slightly forward in the long axis direction. This is because when the moisture content in the body of the subject is measured using the moisture meter 100 in the body, even if the measurer grips the grip portion 130, the display unit 112 is completely displayed by the hand gripped by the measurer. In order to prevent the measurement result from being visually recognized even in a gripped state.
- the display unit 112 displays the current moisture content measurement result 131. For reference, the previous measurement result 132 is also displayed. Further, the battery display unit 133 displays the remaining amount of the battery (power supply unit 211 in FIG. 2). Further, when an invalid measurement result is obtained or a measurement error is detected, “E” is displayed on the display unit 112, and the measurement person is notified of this. Note that characters and the like displayed on the display unit 112 are displayed with the upper surface 114 side of the main body unit 110 as the upper side and the lower surface 115 side as the lower side.
- the upper portion 124 and the lower surface 125 of the insertion portion 120 of the moisture meter 100 in the body have a curved shape, and are gently curved downward as a whole with respect to the main body portion 110.
- the sensor unit 121 is fixed to the distal end surface 122 of the insertion unit 120.
- the sensor unit 121 includes a sensor head 123 having a surface substantially parallel to the distal end surface 122.
- a liquid for example, the inside of the in-vivo moisture meter 100 is interposed through the gap between the sensor unit 121 and the insertion unit 120.
- Alcohol for wiping off the dirt of the sensor unit 121) does not enter, and the waterproofness / antifouling property of the moisture meter 100 in the body can be improved.
- the grasping portion 130 of the moisture meter 100 in the body covers the outer peripheral surface (the rear end surface 113, the upper surface 114, the lower surface 115, and the side surfaces 116 and 117) of the main body portion 110 from the tail portion of the main body portion 110 to the display portion 112.
- the gripping part 130 urges the rear end surface 113 of the main body part 110 in the direction of the arrow 141b by an elastic member such as a spring in order to ensure a pressing force for ensuring the close contact of the sensor head 123 with the skin. (For example, an urging force of about 150 kgf).
- the entire main body 110 slides by a predetermined amount (for example, 1 mm to 10 mm, 3 mm in the present embodiment) in the direction of the arrow 141a, thereby measuring. Is started (hereinafter, the direction of the arrow 141a is referred to as a slide direction).
- a predetermined amount for example, 1 mm to 10 mm, 3 mm in the present embodiment
- FIG. 1 is a diagram illustrating an internal configuration of the gripping unit 130.
- a support member 171 is disposed between the rear end surface 113 of the main body 110 and the inner bottom surface of the grip 130, and supports the main body 110 so as to be slidable.
- an elastic member 172 such as a spring is provided to urge the main body 110 in the direction of the arrow 141b (see the left side of the drawing). Then, when the sensor head 123 is pressed against the skin of the subject's axilla, the elastic member 172 contracts and the entire main body 110 slides in the direction of the arrow 141a (see the right side of the drawing).
- the body moisture meter 100 is introduced into the body moisture meter 100 via the sliding mechanism. It is possible to prevent liquid from entering. As a result, it is possible to improve the waterproofness / antifouling property of the moisture meter 100 in the body while adopting a configuration for ensuring the pressing force that ensures the close contact of the sensor head 123.
- the sensor head 123 when it is detected that the sensor head 123 is pressed against the axilla of the subject after the measurer turns on the power switch 111 to activate the moisture meter 100 in the body, The quantity measurement is started.
- the sensor head 123 applies a predetermined load (for example, 20 gf to 200 gf, more preferably 100 gf to 190 gf, more preferably) on the subject's axilla.
- a predetermined load for example, 20 gf to 200 gf, more preferably 100 gf to 190 gf, more preferably
- the measurement of the moisture content in the body is started.
- the degree of adhesion of the sensor head 123 to the axilla at the time of measurement can be made constant, so that the moisture content in the living body of the subject can be accurately measured.
- FIG. 2 is a diagram illustrating a functional configuration of the moisture meter 100 in the body.
- the control unit 201 includes a CPU 202 and a memory 203, and the CPU 202 executes various programs in the body moisture meter 100 by executing a program stored in the memory 203.
- the CPU 202 performs display control of the display unit 112, which will be described later with reference to the flowchart of FIG. 4, drive control of the buzzer 222 and the LED lamp 223, measurement of moisture in the body (capacitance measurement in the present embodiment), and the like.
- the memory 203 includes a nonvolatile memory and a volatile memory.
- the nonvolatile memory is used as a program memory, and the volatile memory is used as a work memory for the CPU 202.
- the power supply unit 211 has a replaceable battery or a rechargeable battery, and supplies power to each part of the moisture meter 100 in the body.
- the voltage regulator 212 supplies a constant voltage (for example, 2.3 V) to the control unit 201 and the like.
- the battery remaining amount detection unit 213 detects the remaining amount of the battery based on the voltage value supplied from the power supply unit 211 and notifies the control unit 201 of the detection result.
- the control unit 201 controls the display of the battery display unit 133 based on the remaining battery level detection signal from the remaining battery level detection unit 213.
- the control unit 201 When the power switch 111 is pressed, power supply from the power supply unit 211 to each unit is started.
- the control unit 201 detects that pressing of the power switch 111 by the measurer has continued for 1 second or longer, the control unit 201 maintains the power supply from the power supply unit 211 to each unit and puts the moisture meter 100 in the body into an operating state.
- the measurement switch 214 is turned on simultaneously with the start of power supply from the power supply unit 211.
- the control unit 201 starts measuring the amount of moisture when the distal end insertion portion 120-2 is pushed in the direction of the arrow 141a by a predetermined amount or more, and when the measurement switch 214 is on for a predetermined time (for example, 2 seconds), the measurement is started. Exit.
- control unit 201 In order to prevent the power supply unit 211 from being consumed, if the measurement does not start even after 2 minutes have passed since the in-vivo moisture meter 100 is in the operating state, the control unit 201 automatically turns on the in-vivo moisture meter 100. Transition to the off state.
- FIG. 3 is a diagram illustrating a configuration example of the measurement circuit 221.
- a CR oscillation circuit is formed by inverters 301 and 302, resistors 303 and 304, and subject capacitance 310. Since the oscillation frequency of the output signal 305 is changed by the subject volume 310, the control unit 201 calculates the subject volume 310 by measuring the frequency of the output signal 305.
- the sensor head 123 of the present embodiment is configured such that two comb-shaped electrodes are arranged so that their comb teeth are arranged alternately.
- the display unit 112 performs display as described in FIG. 1 under the control of the control unit 201.
- the buzzer 222 rings when the measurement starts when the main body 110 slides or when the measurement of the amount of moisture in the body is completed, and notifies the measurer of the start and completion of the measurement.
- the LED lamp 223 also performs the same notification as the buzzer 222. That is, the LED lamp 223 is turned on when the measurement by the slide of the main body 110 or the measurement of the moisture content in the body is completed, and notifies the measurement person of the measurement start and completion.
- the timer unit 224 operates by receiving power supply from the power supply unit 211 even when the power is off, and notifies the control unit 201 of the time in the operation state.
- step S401 the control unit 201 detects a measurement start instruction.
- the state of the measurement switch 214 is monitored, and it is determined that the measurement start instruction has been detected when the measurement switch 214 is on for 2 seconds or longer.
- the control unit 201 measures the oscillation frequency of the output signal 305 from the measurement circuit 221 in step S402.
- step S403 the moisture content in the body of the subject is calculated based on the oscillation frequency of the output signal 305 measured in step S402.
- step S404 it is determined whether or not the subject is dehydrated based on whether or not the amount of water in the body calculated in step S403 exceeds a predetermined threshold value.
- the threshold value in this case is preferably a value corresponding to 35% when water is 100% and air is 0%.
- step S405 the current measurement information is stored in the memory 203.
- FIG. 5 is a diagram illustrating a data configuration of measurement information stored in the memory 203.
- a measured value 501 is the amount of water in the body calculated by the current measurement.
- the determination result 502 is information indicating whether the dehydrated state or the non-dehydrated state is determined in step S404 with respect to the in-vivo moisture amount calculated by the current measurement.
- the measurement time 503 is information indicating the time notified from the time measuring unit 224 in the current measurement.
- the measurement time 503 can be, for example, the time notified from the time measuring unit 224 when the measurement is performed in step S402.
- step S406 the water content in the body calculated by the current measurement is displayed on the display unit 112.
- display is performed in a display form according to the determination result of the dehydrated state or the non-dehydrated state (for example, in the case of the dehydrated state, the amount of water in the body is displayed in red, and in the case of the non-dehydrated state, The amount of water in the body is displayed in blue).
- the in-vivo moisture meter 100 fixes the sensor part 121 to the distal end surface 122 of the insertion part 120, while extending from the tail part 110 of the main part to the display part.
- the outer peripheral surface of 110 is covered with a gripping portion 130, and the entire main body 110 is slidably supported by the gripping portion 130.
- the grip 130 is configured to cover from the tail of the body 110 of the body moisture meter 100 to the display.
- the present invention is not limited to this, for example, the rear end surface of the body 110 It is good also as a structure which covers only the outer peripheral surface except 113. FIG.
- FIG. 6 is a diagram showing the external configuration of the moisture meter 600 in the body according to the second embodiment of the present invention and the internal configuration of the gripping portion.
- the same reference number is attached
- the difference from the first embodiment will be mainly described.
- the gripping part 630 does not cover the rear end surface 113 of the main body part 110, and covers only the upper surface 114, the lower surface 115, and the side surfaces 116 and 117 of the main body part 110. It has a hollow and bottomless cylindrical shape.
- a spring is disposed on the outer peripheral surface of the main body 110.
- One end of the spring is connected to the main body side protruding portion 601 protruding on the outer peripheral surface of the main body portion 110, and the other end is connected to the holding portion side protruding portion 611 protruding on the inner peripheral surface of the holding portion 630. ing.
- the main body 110 is urged in the direction of the arrow 141 a by the grip 630.
- the elastic member 172 is disposed between the outer peripheral surface of the main body 110 and the inner peripheral surface of the gripping portion 630, and the entire main body 110 is slidably supported by the gripping portion 630. The same effect as the embodiment can be enjoyed.
- the shape of the outer peripheral surface of the grip portion is not particularly mentioned, but the outer peripheral surface of the grip portion is gripped when the measurer measures the moisture content in the subject's body. It is desirable to be configured in a shape that is easy to do.
- FIG. 7a and 7b in FIG. 7 show a state in which the shape of the outer peripheral surface of the gripping portion shown in the second embodiment is configured to be easily gripped by the measurer.
- the measurer brings the sensor unit 121 into contact with the subject's axilla using the in-vivo moisture meter 600 according to the second embodiment, the measurer's thumb is arranged on the upper surface 114 side of the main body 110, and the main body The remaining finger of the measurer is arranged on the lower surface 115 side of the unit 110.
- the shape of the outer peripheral surface of the grip portion 730 is formed on the premise of such finger arrangement.
- the present invention is not limited to this, and You may make it form the outer peripheral surface of the holding part 130 shown in 1st Embodiment similarly.
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Abstract
The purpose of the present invention is to improve the water resistance and anti-fouling properties of a body water content meter while maintaining measurement accuracy. A body water content meter (100) according to the present invention is characterized by the provision of: a main body section (110) that is formed to have a linear shape; an insertion section (120) that extends in a curved manner from one end of the main body section (110); a sensor unit (121) that is affixed to the tip surface of the insertion section (120) and that measures data related to the water content within a living body by being brought into contact with the body surface of a subject; and a grip section (130) that covers the outer peripheral surface of the main body section (110) and slidably supports the main body section (110).
Description
本発明は、被検者の生体内の水分量を測定する体内水分計に関するものである。
The present invention relates to an in-vivo moisture meter that measures the amount of moisture in the living body of a subject.
被検者の生体内の水分量を測定することは重要である。生体における脱水症状は、生体内の水分が減少する病態であり、発汗や体温上昇により多くの水分が体内から体外に排出される運動時や気温の高い時に多く発現する。特に、高齢者の場合、生体の水分保持能力自体が低下しているため、一般健常者と比較して脱水症状を起こし易い。
It is important to measure the amount of water in the subject's body. Dehydration in the living body is a pathological condition in which water in the living body decreases, and it is often expressed during exercise when high water is discharged from the body due to sweating or body temperature rise or when the temperature is high. In particular, in the case of an elderly person, the water retention ability of the living body itself is reduced, and thus dehydration is more likely to occur than in a normal healthy person.
通常、生体内の水分が体重の3%以上失われた時点で体温調整の障害が起こると言われている。体温調整の障害が起こり体温が上昇すると、生体内の更なる水分の減少を引き起こすため悪循環に陥り、遂には熱中症と称される病態に至ることとなる。熱中症には、熱痙攣、熱疲労、熱射病等の病態があり、時には全身の臓器障害が起こることもある。このようなことから、熱中症に至る危険を未然に回避すべく、生体内の水分量を的確に把握しておくことは重要である。
Usually, it is said that body temperature regulation is impaired when water in the body loses 3% or more of body weight. When a body temperature regulation disorder occurs and the body temperature rises, it causes a further decrease in water in the living body and falls into a vicious circle, eventually leading to a disease state called heat stroke. Heat stroke has pathological conditions such as heat convulsions, heat fatigue, and heat stroke, and sometimes systemic organ damage may occur. For this reason, it is important to accurately grasp the amount of water in the living body in order to avoid the risk of causing heat stroke.
かかる背景のもと、本願出願人は、生体内の水分量を的確に把握するのに適した部位として、被検者の腋窩に着目しており、当該腋窩に、電極を配したセンサ部をあてがい、当該電極間の静電容量を測定することで、被検者の生体内の水分量を算出する体内水分計の開発に取り組んでいる。
Based on this background, the applicant of the present application focuses on the subject's axilla as a part suitable for accurately grasping the amount of water in the living body, and a sensor unit having electrodes disposed on the axilla. Therefore, we are working on the development of an in-vivo moisture meter that calculates the amount of moisture in the living body of a subject by measuring the capacitance between the electrodes.
図8の8aは、本願出願人が提案している体内水分計800の一例を示す図である。図8の8aに示すように、体内水分計800は本体部810と挿入部820とを備え、測定者によって把持される本体部810は、全体として直線状に形成されている。本体部810の筐体表面には、表示部812が配されており、測定結果831等が表示される。
8a in FIG. 8 is a diagram showing an example of the moisture meter 800 in the body proposed by the applicant of the present application. As shown to 8a of FIG. 8, the moisture meter 800 in a body is provided with the main-body part 810 and the insertion part 820, and the main-body part 810 grasped | ascertained by the measurer is formed in linear form as a whole. A display unit 812 is arranged on the housing surface of the main body unit 810, and a measurement result 831 and the like are displayed.
一方、腋窩に挿入される挿入部820は、本体部810の一端から延設されており、本体部810に対して、全体として、下向きに緩やかに湾曲している。挿入部820の先端面822には、センサ部821がスライド可能に支持されている。
On the other hand, the insertion portion 820 to be inserted into the axilla extends from one end of the main body 810, and is gently curved downward with respect to the main body 810 as a whole. A sensor portion 821 is slidably supported on the distal end surface 822 of the insertion portion 820.
センサ部821は、先端面822に略平行な面を有するセンサヘッド823を有しており、センサヘッド823の皮膚への密着を保証するうえでの押圧力を確保するため、矢印841bの方向へ付勢されている。そして、センサヘッド823が被検者の腋窩の皮膚に押し当てられると、センサ部821が矢印841aの方向に所定量スライドし、これにより測定が開始されることとなる。
The sensor unit 821 has a sensor head 823 having a surface substantially parallel to the tip end surface 822, and in the direction of the arrow 841b in order to ensure a pressing force for ensuring the close contact of the sensor head 823 with the skin. It is energized. When the sensor head 823 is pressed against the skin of the subject's axilla, the sensor unit 821 slides by a predetermined amount in the direction of the arrow 841a, thereby starting measurement.
しかしながら、上記のような構成を有する体内水分計800の場合、先端面822には、センサ部821を矢印841a方向にスライドさせるための開口部が設けられている。図8の8bは、センサ部821を含む、挿入部820の先端領域850の断面構成を示す図である。
However, in the case of the moisture meter 800 in the body having the above-described configuration, the distal end surface 822 is provided with an opening for sliding the sensor portion 821 in the direction of the arrow 841a. 8b in FIG. 8 is a diagram showing a cross-sectional configuration of the distal end region 850 of the insertion portion 820 including the sensor portion 821.
図8の8bに示すように、開口部851は、その開口面が、センサ部821のセンサヘッド823よりも大きく、センサ部821の側面と開口部851の内壁面との間には、隙間852が確保されている。これにより、センサ部821を矢印841a方向に滑らかにスライドさせることが可能となっている。
8B, the opening 851 has a larger opening surface than the sensor head 823 of the sensor unit 821, and a gap 852 is provided between the side surface of the sensor unit 821 and the inner wall surface of the opening 851. Is secured. Thereby, the sensor part 821 can be smoothly slid in the direction of the arrow 841a.
一方で、センサ部821の側面と開口部851の内壁面との間に隙間852を設けると、当該隙間852を介して体内水分計800の内部に液体(例えば、センサ部821の汚れを拭きとるためのアルコール等)が浸入することとなり、体内水分計800の故障の原因となることが考えられる。
On the other hand, when a gap 852 is provided between the side surface of the sensor unit 821 and the inner wall surface of the opening 851, liquid (for example, dirt on the sensor unit 821) is wiped into the body moisture meter 800 through the gap 852. For example, alcohol in order to enter), which may cause the moisture meter 800 in the body to malfunction.
また、当該隙間852を介して体内水分計800の内部に埃や測定時に付着した皮膚片などの汚れが溜まり、体内水分計800の故障や患者どうしの感染の原因となることが考えられる。
In addition, it is considered that dirt such as dust or skin pieces adhered at the time of measurement accumulates inside the moisture meter 800 through the gap 852, causing malfunction of the moisture meter 800 and infection between patients.
このようなことから、体内水分計においては、被検者の生体内の水分量を精度よく測定するために、センサヘッド823の皮膚への密着を保証する押圧力を確保するための構成を採りつつも、防水性・防汚性に優れた構造を有していることが望ましい。
For this reason, the in-vivo moisture meter has a structure for ensuring a pressing force that ensures the close contact of the sensor head 823 with the skin in order to accurately measure the amount of moisture in the living body of the subject. However, it is desirable to have a structure excellent in waterproofness and antifouling properties.
本発明は上記課題に鑑みてなされたものであり、体内水分計において、測定精度を維持しつつ、防水性・防汚性を向上させることを目的とする。
The present invention has been made in view of the above problems, and an object of the present invention is to improve waterproofness and antifouling properties while maintaining measurement accuracy in an in-vivo moisture meter.
上記の目的を達成するために、本発明に係る体内水分計は以下のような構成を備える。即ち、
体内水分計であって、
直線状に形成された本体部と、
前記本体部の一端から湾曲して延設された挿入部と、
前記挿入部の先端面に固定され、被検者の体表面に接触させることで、生体内の水分に関するデータを測定するセンサ部と、
前記本体部の外周面を覆い、前記本体部をスライド可能に支持する把持部とを備える。 In order to achieve the above object, the moisture meter in the body according to the present invention has the following configuration. That is,
A body moisture meter,
A body portion formed in a straight line;
An insertion portion that is curved and extended from one end of the main body portion;
A sensor unit that measures data on moisture in the living body by being fixed to the distal end surface of the insertion unit and contacting the body surface of the subject,
A grip portion that covers an outer peripheral surface of the main body portion and slidably supports the main body portion.
体内水分計であって、
直線状に形成された本体部と、
前記本体部の一端から湾曲して延設された挿入部と、
前記挿入部の先端面に固定され、被検者の体表面に接触させることで、生体内の水分に関するデータを測定するセンサ部と、
前記本体部の外周面を覆い、前記本体部をスライド可能に支持する把持部とを備える。 In order to achieve the above object, the moisture meter in the body according to the present invention has the following configuration. That is,
A body moisture meter,
A body portion formed in a straight line;
An insertion portion that is curved and extended from one end of the main body portion;
A sensor unit that measures data on moisture in the living body by being fixed to the distal end surface of the insertion unit and contacting the body surface of the subject,
A grip portion that covers an outer peripheral surface of the main body portion and slidably supports the main body portion.
本発明によれば、体内水分計において、測定精度を維持しつつ、防水性・防汚性を向上させることが可能となる。
According to the present invention, it is possible to improve waterproofness and antifouling properties while maintaining measurement accuracy in the moisture meter in the body.
本発明のその他の特徴及び利点は、添付図面を参照とした以下の説明により明らかになるであろう。なお、添付図面においては、同じ若しくは同様の構成には、同じ参照番号を付す。
Other features and advantages of the present invention will become apparent from the following description with reference to the accompanying drawings. In the accompanying drawings, the same or similar components are denoted by the same reference numerals.
添付図面は明細書に含まれ、その一部を構成し、本発明の実施の形態を示し、その記述と共に本発明の原理を説明するために用いられる。
図1は、本発明の第1の実施形態にかかる体内水分計の外観構成及び把持部の内部構成を示す図である。
図2は、体内水分計の機能構成を示す図である。
図3は、体内水分計の測定回路の構成例を示す図である。
図4は、体内水分計の動作を説明するための図である。
図5は、測定情報のデータ構成を示す図である。
図6は、本発明の第2の実施形態にかかる体内水分計の外観構成及び体内水分計の外観構成及び把持部の内部構成を示す図である。
図7は、本発明の第3の実施形態にかかる体内水分計の外観構成及び体内水分計の外観構成及び把持部の内部構成を示す図である。
図8は、体内水分計の外観構成及び体内水分計の先端領域の構成を示す図である。
The accompanying drawings are included in the specification, constitute a part thereof, show an embodiment of the present invention, and are used to explain the principle of the present invention together with the description.
FIG. 1 is a diagram illustrating an external configuration of a moisture meter in the body according to the first embodiment of the present invention and an internal configuration of a gripping portion. FIG. 2 is a diagram showing a functional configuration of the moisture meter in the body. FIG. 3 is a diagram illustrating a configuration example of a measurement circuit of the moisture meter in the body. FIG. 4 is a diagram for explaining the operation of the moisture meter in the body. FIG. 5 is a diagram illustrating a data configuration of measurement information. FIG. 6 is a diagram showing an external configuration of the moisture meter in the body according to the second embodiment of the present invention, an external configuration of the moisture meter in the body, and an internal configuration of the gripping unit. FIG. 7 is a diagram showing the external configuration of the moisture meter in the body according to the third embodiment of the present invention, the external configuration of the moisture meter in the body, and the internal configuration of the gripping portion. FIG. 8 is a diagram showing the external configuration of the moisture meter in the body and the configuration of the tip region of the moisture meter in the body.
以下、本発明の各実施形態について図面を参照しながら説明する。なお、以下に述べる実施の形態は、本発明の好適な具体例であるから、技術的に好ましい種々の限定が付されているが、本発明の範囲は、以下の説明において特に本発明を限定する旨の記載がない限り、これらの態様に限られるものではない。
Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiment described below is a preferred specific example of the present invention, and thus various technically preferable limitations are given. However, the scope of the present invention is particularly limited in the following description. Unless otherwise stated, the present invention is not limited to these embodiments.
[第1の実施形態]
<1.体内水分計の外観構成>
図1は、本発明の第1の実施形態に係る体内水分計100の外観構成及び把持部の内部構成を示す図である。体内水分計100は、被検者の体表面である腋窩の皮膚にセンサ部を接触させ、センサ部において供給した電気信号に応じた物理量を検出することで被検者の体内の水分量を検出する。本実施形態に係る体内水分計100では、当該物理量(生体内の水分に関するデータ)として被検者の静電容量を測定することにより、腋窩の皮膚の湿り具合を検出し、生体内の水分量を算出する。 [First Embodiment]
<1. External structure of moisture meter in the body>
FIG. 1 is a diagram showing the external configuration of themoisture meter 100 in the body according to the first embodiment of the present invention and the internal configuration of the gripping portion. The moisture meter 100 in the body detects the amount of moisture in the body of the subject by bringing the sensor part into contact with the skin of the axilla, which is the body surface of the subject, and detecting a physical quantity corresponding to the electrical signal supplied in the sensor part To do. In the body moisture meter 100 according to the present embodiment, the wetness of the skin of the axilla is detected by measuring the capacitance of the subject as the physical quantity (data on the moisture in the living body), and the moisture content in the living body Is calculated.
<1.体内水分計の外観構成>
図1は、本発明の第1の実施形態に係る体内水分計100の外観構成及び把持部の内部構成を示す図である。体内水分計100は、被検者の体表面である腋窩の皮膚にセンサ部を接触させ、センサ部において供給した電気信号に応じた物理量を検出することで被検者の体内の水分量を検出する。本実施形態に係る体内水分計100では、当該物理量(生体内の水分に関するデータ)として被検者の静電容量を測定することにより、腋窩の皮膚の湿り具合を検出し、生体内の水分量を算出する。 [First Embodiment]
<1. External structure of moisture meter in the body>
FIG. 1 is a diagram showing the external configuration of the
図1の1aに示すように、体内水分計100は本体部110と、本体部110の一端から湾曲して延設された挿入部120と、本体部110の尾部側を覆う、中空かつ有底の筒形状の把持部130とを備える。本体部110は、上面114、下面115、側面116、117がそれぞれ長軸方向(不図示)に略平行に形成されており、全体として、直線状に形成されている。また、本体部110の筐体表面には、各種ユーザインターフェースが配置され、筐体内部には体内の水分量を算出するための電子回路が収納されている。
As shown to 1a of FIG. 1, the moisture meter 100 in a body is a hollow and bottomed body which covers the main-body part 110, the insertion part 120 extended curvedly from the end of the main-body part 110, and the tail part side of the main-body part 110. And a cylindrical grip 130. The main body 110 has an upper surface 114, a lower surface 115, and side surfaces 116 and 117 that are formed substantially parallel to the major axis direction (not shown), respectively, and are formed in a straight line as a whole. Various user interfaces are arranged on the surface of the casing of the main body 110, and an electronic circuit for calculating the amount of moisture in the body is housed inside the casing.
図1の1aの例では、ユーザインターフェースとして、電源スイッチ111及び表示部112が示されている。電源スイッチ111は、本体部110の上面114の凹部に配されている。このように凹部に電源スイッチ111を配する構成とすることで、電源スイッチ111の誤操作を防ぐことができる。なお、電源スイッチ111がオンされると後述の電源部211(図2)から体内水分計100の各部への電源供給が開始され、体内水分計100は動作状態となる。
In the example of 1a in FIG. 1, a power switch 111 and a display unit 112 are shown as user interfaces. The power switch 111 is disposed in a recess on the upper surface 114 of the main body 110. By adopting a configuration in which the power switch 111 is arranged in the recess in this way, an erroneous operation of the power switch 111 can be prevented. When the power switch 111 is turned on, power supply from the power supply unit 211 (FIG. 2), which will be described later, to each part of the moisture meter 100 in the body is started, and the moisture meter 100 in the body enters an operating state.
表示部112は、本体部110の側面117上において、長軸方向のやや前方側に配されている。これは、体内水分計100を用いて被検者の体内の水分量を測定するにあたり、測定者が把持部130を把持した場合であっても、測定者の把持した手で表示部112が完全に覆われることがないようにするためである(把持した状態でも測定結果が視認できるようにするためである)。
The display unit 112 is arranged on the side surface 117 of the main body unit 110 slightly forward in the long axis direction. This is because when the moisture content in the body of the subject is measured using the moisture meter 100 in the body, even if the measurer grips the grip portion 130, the display unit 112 is completely displayed by the hand gripped by the measurer. In order to prevent the measurement result from being visually recognized even in a gripped state.
表示部112には、今回の水分量の測定結果131が表示される。また、参考として前回の測定結果132もあわせて表示される。さらに、電池表示部133には、電池(図2の電源部211)の残量が表示される。また、無効な測定結果が得られた場合や測定エラーが検出された場合には、表示部112に“E”が表示され、その旨が測定者に報知される。なお、表示部112に表示される文字等は、本体部110の上面114側を上とし、下面115側を下として、表示されるものとする。
The display unit 112 displays the current moisture content measurement result 131. For reference, the previous measurement result 132 is also displayed. Further, the battery display unit 133 displays the remaining amount of the battery (power supply unit 211 in FIG. 2). Further, when an invalid measurement result is obtained or a measurement error is detected, “E” is displayed on the display unit 112, and the measurement person is notified of this. Note that characters and the like displayed on the display unit 112 are displayed with the upper surface 114 side of the main body unit 110 as the upper side and the lower surface 115 side as the lower side.
体内水分計100の挿入部120は、上面124及び下面125が曲面形状を有しており、本体部110に対して、全体として、下向きに緩やかに湾曲している。
The upper portion 124 and the lower surface 125 of the insertion portion 120 of the moisture meter 100 in the body have a curved shape, and are gently curved downward as a whole with respect to the main body portion 110.
挿入部120の先端面122には、センサ部121が固定されている。センサ部121は、先端面122に略平行な面を有するセンサヘッド123を有している。このように、センサ部121を挿入部120の先端面122に固定する構成とすることで、センサ部121と挿入部120との間の隙間を介して、体内水分計100の内部に液体(例えば、センサ部121の汚れを拭きとるためのアルコール等)が浸入することがなくなり、体内水分計100の防水性・防汚性を向上させることが可能となる。
The sensor unit 121 is fixed to the distal end surface 122 of the insertion unit 120. The sensor unit 121 includes a sensor head 123 having a surface substantially parallel to the distal end surface 122. In this way, by configuring the sensor unit 121 to be fixed to the distal end surface 122 of the insertion unit 120, a liquid (for example, the inside of the in-vivo moisture meter 100 is interposed through the gap between the sensor unit 121 and the insertion unit 120. , Alcohol for wiping off the dirt of the sensor unit 121) does not enter, and the waterproofness / antifouling property of the moisture meter 100 in the body can be improved.
体内水分計100の把持部130は、本体部110の尾部から、表示部112にかけて本体部110の外周面(後端面113、上面114、下面115、側面116・117)を覆っている。把持部130は、センサヘッド123の皮膚への密着を保証する上での押圧力を確保するため、ばね等の弾性部材により、矢印141b方向に本体部110の後端面113を付勢している(たとえば150kgf程度の付勢力)。そして、センサヘッド123が被検者の腋窩の皮膚に押し当てられると、本体部110全体が、矢印141a方向に所定量(たとえば、1mm~10mm、本実施形態では3mm)スライドし、これにより測定が開始されることとなる(以下、矢印141aの方向をスライド方向と称す)。
The grasping portion 130 of the moisture meter 100 in the body covers the outer peripheral surface (the rear end surface 113, the upper surface 114, the lower surface 115, and the side surfaces 116 and 117) of the main body portion 110 from the tail portion of the main body portion 110 to the display portion 112. The gripping part 130 urges the rear end surface 113 of the main body part 110 in the direction of the arrow 141b by an elastic member such as a spring in order to ensure a pressing force for ensuring the close contact of the sensor head 123 with the skin. (For example, an urging force of about 150 kgf). When the sensor head 123 is pressed against the skin of the subject's axilla, the entire main body 110 slides by a predetermined amount (for example, 1 mm to 10 mm, 3 mm in the present embodiment) in the direction of the arrow 141a, thereby measuring. Is started (hereinafter, the direction of the arrow 141a is referred to as a slide direction).
図1の1bは、把持部130の内部構成を示す図である。図1の1bに示すように、本体部110の後端面113と、把持部130の内側底面との間には支持部材171が配され、本体部110をスライド可能に支持している。また、ばね等の弾性部材172が配されておリ、本体部110を矢印141b方向に付勢している(紙面左側参照)。そして、センサヘッド123が被検者の腋窩の皮膚に押し当てられることで、弾性部材172が縮み、本体部110全体が、矢印141a方向にスライドする(紙面右側参照)。
1b in FIG. 1 is a diagram illustrating an internal configuration of the gripping unit 130. As shown in 1b of FIG. 1, a support member 171 is disposed between the rear end surface 113 of the main body 110 and the inner bottom surface of the grip 130, and supports the main body 110 so as to be slidable. In addition, an elastic member 172 such as a spring is provided to urge the main body 110 in the direction of the arrow 141b (see the left side of the drawing). Then, when the sensor head 123 is pressed against the skin of the subject's axilla, the elastic member 172 contracts and the entire main body 110 slides in the direction of the arrow 141a (see the right side of the drawing).
このように、本体部110をスライドさせるための機構(スライド機構)を、(挿入部120ではなく)本体部110の筺体の外側に設けることで、スライド機構を介して体内水分計100内部への液体の浸入を防ぐことが可能となる。この結果、センサヘッド123の密着を保証する押圧力を確保するための構成を採りつつ、体内水分計100の防水性・防汚性を向上させることが可能となる。
In this manner, by providing a mechanism (sliding mechanism) for sliding the main body 110 outside the housing of the main body 110 (not the insertion section 120), the body moisture meter 100 is introduced into the body moisture meter 100 via the sliding mechanism. It is possible to prevent liquid from entering. As a result, it is possible to improve the waterproofness / antifouling property of the moisture meter 100 in the body while adopting a configuration for ensuring the pressing force that ensures the close contact of the sensor head 123.
かかる構成のもと、測定者が電源スイッチ111をオンして体内水分計100を動作状態とした後、センサヘッド123が被検者の腋窩に押し当てられたことが検知されると、体内水分量の測定が開始される。あるいは、測定者が電源スイッチ111をオンして体内水分計100を動作状態とした後、センサヘッド123が被検者の腋窩に所定負荷(例えば20gf~200gf、さらに好ましくは100gf~190gf、本実施形態では150gf)で押し当てられたことが検知されると(図1の1bの紙面右側の状態が所定時間以上継続したことが検知されると)、体内水分量の測定が開始される。このような仕組みにより、測定時におけるセンサヘッド123の腋窩への密着の程度を一定にすることができるため、被検者の生体内の水分量を精度よく測定することが可能となる。
Under such a configuration, when it is detected that the sensor head 123 is pressed against the axilla of the subject after the measurer turns on the power switch 111 to activate the moisture meter 100 in the body, The quantity measurement is started. Alternatively, after the measurer turns on the power switch 111 to activate the moisture meter 100 in the body, the sensor head 123 applies a predetermined load (for example, 20 gf to 200 gf, more preferably 100 gf to 190 gf, more preferably) on the subject's axilla. In the embodiment, when it is detected that it is pressed at 150 gf (when it is detected that the state on the right side of 1b in FIG. 1 has continued for a predetermined time or longer), the measurement of the moisture content in the body is started. With such a mechanism, the degree of adhesion of the sensor head 123 to the axilla at the time of measurement can be made constant, so that the moisture content in the living body of the subject can be accurately measured.
<2.体内水分計の機能構成>
次に、体内水分計100の機能構成について説明する。図2は、体内水分計100の機能構成を示す図である。図2において、制御部201は、CPU202、メモリ203を有し、CPU202はメモリ203に格納されているプログラムを実行することにより、体内水分計100における種々の制御を実行する。 <2. Functional configuration of body moisture meter>
Next, the functional configuration of themoisture meter 100 in the body will be described. FIG. 2 is a diagram illustrating a functional configuration of the moisture meter 100 in the body. In FIG. 2, the control unit 201 includes a CPU 202 and a memory 203, and the CPU 202 executes various programs in the body moisture meter 100 by executing a program stored in the memory 203.
次に、体内水分計100の機能構成について説明する。図2は、体内水分計100の機能構成を示す図である。図2において、制御部201は、CPU202、メモリ203を有し、CPU202はメモリ203に格納されているプログラムを実行することにより、体内水分計100における種々の制御を実行する。 <2. Functional configuration of body moisture meter>
Next, the functional configuration of the
例えば、CPU202は、図4のフローチャートにより後述する表示部112の表示制御、ブザー222やLEDランプ223の駆動制御、体内水分量の測定(本実施形態では静電容量測定)などを実行する。メモリ203は、不揮発性メモリと揮発性メモリとを含み、不揮発性メモリはプログラムメモリとして、揮発性メモリはCPU202の作業メモリとして利用される。
For example, the CPU 202 performs display control of the display unit 112, which will be described later with reference to the flowchart of FIG. 4, drive control of the buzzer 222 and the LED lamp 223, measurement of moisture in the body (capacitance measurement in the present embodiment), and the like. The memory 203 includes a nonvolatile memory and a volatile memory. The nonvolatile memory is used as a program memory, and the volatile memory is used as a work memory for the CPU 202.
電源部211は、交換が可能なバッテリー、或いは充電が可能なバッテリーを有しており、体内水分計100の各部へ電源を供給する。電圧レギュレータ212は、制御部201等へ一定電圧(例えば、2.3V)を供給する。電池残量検出部213は、電源部211から供給される電圧値に基づいて、電池の残量を検出し、その検出結果を制御部201に通知する。制御部201は、電池残量検出部213からの電池残量検出信号に基づいて、電池表示部133の表示を制御する。
The power supply unit 211 has a replaceable battery or a rechargeable battery, and supplies power to each part of the moisture meter 100 in the body. The voltage regulator 212 supplies a constant voltage (for example, 2.3 V) to the control unit 201 and the like. The battery remaining amount detection unit 213 detects the remaining amount of the battery based on the voltage value supplied from the power supply unit 211 and notifies the control unit 201 of the detection result. The control unit 201 controls the display of the battery display unit 133 based on the remaining battery level detection signal from the remaining battery level detection unit 213.
電源スイッチ111が押下されると、各部への電源部211からの電力供給が開始される。そして、制御部201は、電源スイッチ111の測定者による押下が1秒以上継続したことを検出すると、電源部211からの各部への電源供給を維持させ、体内水分計100を動作状態とする。上述したように、測定スイッチ214は、電源部211からの電力供給が開始されると同時にオン状態になる。制御部201は、先端側挿入部120-2が矢印141aの方向へ所定量以上押されると水分量の測定を開始し、測定スイッチ214のオン状態が所定時間(例えば2秒)継続すると、測定を終了する。なお、電源部211の消耗を防止するために、体内水分計100が動作状態になってから2分経過しても測定開始とならない場合は、制御部201は自動的に体内水分計100を電源オフの状態へと移行させる。
When the power switch 111 is pressed, power supply from the power supply unit 211 to each unit is started. When the control unit 201 detects that pressing of the power switch 111 by the measurer has continued for 1 second or longer, the control unit 201 maintains the power supply from the power supply unit 211 to each unit and puts the moisture meter 100 in the body into an operating state. As described above, the measurement switch 214 is turned on simultaneously with the start of power supply from the power supply unit 211. The control unit 201 starts measuring the amount of moisture when the distal end insertion portion 120-2 is pushed in the direction of the arrow 141a by a predetermined amount or more, and when the measurement switch 214 is on for a predetermined time (for example, 2 seconds), the measurement is started. Exit. In order to prevent the power supply unit 211 from being consumed, if the measurement does not start even after 2 minutes have passed since the in-vivo moisture meter 100 is in the operating state, the control unit 201 automatically turns on the in-vivo moisture meter 100. Transition to the off state.
測定回路221は、センサヘッド123と接続され、静電容量を測定する。図3は、測定回路221の構成例を示す図である。図3に示すように、インバータ301、302、抵抗303、304、被検者容量310によりCR発振回路が形成される。被検者容量310によって出力信号305の発振周波数が変化するので、制御部201は、出力信号305の周波数を測定することにより、被検者容量310を算出する。なお、本実施形態のセンサヘッド123は、2つの櫛形の電極が、それぞれの櫛歯が互い違いに並ぶように配置されてなるものとする。
The measurement circuit 221 is connected to the sensor head 123 and measures the capacitance. FIG. 3 is a diagram illustrating a configuration example of the measurement circuit 221. As shown in FIG. 3, a CR oscillation circuit is formed by inverters 301 and 302, resistors 303 and 304, and subject capacitance 310. Since the oscillation frequency of the output signal 305 is changed by the subject volume 310, the control unit 201 calculates the subject volume 310 by measuring the frequency of the output signal 305. Note that the sensor head 123 of the present embodiment is configured such that two comb-shaped electrodes are arranged so that their comb teeth are arranged alternately.
図2に戻る。表示部112は、図1で説明したような表示を制御部201の制御下で行う。ブザー222は、本体部110がスライドすることによる測定の開始や、体内水分量の測定が完了した際に鳴動し、測定の開始や完了を測定者に通知する。LEDランプ223もブザー222と同様の通知を行う。すなわち、LEDランプ223は、本体部110のスライドによる測定の開始や、体内水分量の測定が完了した際に点灯し、測定の開始や完了を測定者に通知する。計時部224は、電源がオフの状態であっても電源部211からの電源供給を受けて動作し、動作状態においては時刻を制御部201に通知する。
Return to Figure 2. The display unit 112 performs display as described in FIG. 1 under the control of the control unit 201. The buzzer 222 rings when the measurement starts when the main body 110 slides or when the measurement of the amount of moisture in the body is completed, and notifies the measurer of the start and completion of the measurement. The LED lamp 223 also performs the same notification as the buzzer 222. That is, the LED lamp 223 is turned on when the measurement by the slide of the main body 110 or the measurement of the moisture content in the body is completed, and notifies the measurement person of the measurement start and completion. The timer unit 224 operates by receiving power supply from the power supply unit 211 even when the power is off, and notifies the control unit 201 of the time in the operation state.
<3.体内水分計の動作>
以上のような構成を備えた、本実施形態に係る体内水分計100の動作を、図4のフローチャートを参照して説明する。 <3. Operation of body moisture meter>
The operation of themoisture meter 100 in the body according to the present embodiment having the above configuration will be described with reference to the flowchart of FIG.
以上のような構成を備えた、本実施形態に係る体内水分計100の動作を、図4のフローチャートを参照して説明する。 <3. Operation of body moisture meter>
The operation of the
ステップS401では、制御部201が、測定開始の指示を検出する。本実施形態では、測定スイッチ214の状態を監視し、測定スイッチ214のオン状態が2秒以上継続した場合に測定開始の指示を検出したと判定する。制御部201は、測定開始の指示を検出すると、ステップS402において、測定回路221からの出力信号305の発振周波数を測定する。
In step S401, the control unit 201 detects a measurement start instruction. In the present embodiment, the state of the measurement switch 214 is monitored, and it is determined that the measurement start instruction has been detected when the measurement switch 214 is on for 2 seconds or longer. When detecting the measurement start instruction, the control unit 201 measures the oscillation frequency of the output signal 305 from the measurement circuit 221 in step S402.
ステップS403では、ステップS402において測定された出力信号305の発振周波数に基づいて、被検者の体内水分量を算出する。
In step S403, the moisture content in the body of the subject is calculated based on the oscillation frequency of the output signal 305 measured in step S402.
ステップS404では、ステップS403で算出された体内水分量が所定の閾値を超えるか否かに基づいて被検者が脱水状態か否かを判定する。なお、この場合の閾値とは、例えば、水を100%、空気を0%とした時の35%に相当する値が望ましい。
In step S404, it is determined whether or not the subject is dehydrated based on whether or not the amount of water in the body calculated in step S403 exceeds a predetermined threshold value. The threshold value in this case is preferably a value corresponding to 35% when water is 100% and air is 0%.
ステップS405では、今回の測定情報をメモリ203に格納する。図5は、メモリ203に格納される測定情報のデータ構成を示す図である。図5において、測定値501は、今回の測定により算出された体内水分量である。判定結果502は、今回の測定により算出された体内水分量に対して、ステップS404において判定された、脱水状態か非脱水状態かを示す情報である。測定時刻503は、今回の測定において計時部224から通知された時刻を示す情報である。測定時刻503としては、例えば、ステップS402において測定を実行した時点で計時部224から通知されている時刻とすることができる。
In step S405, the current measurement information is stored in the memory 203. FIG. 5 is a diagram illustrating a data configuration of measurement information stored in the memory 203. In FIG. 5, a measured value 501 is the amount of water in the body calculated by the current measurement. The determination result 502 is information indicating whether the dehydrated state or the non-dehydrated state is determined in step S404 with respect to the in-vivo moisture amount calculated by the current measurement. The measurement time 503 is information indicating the time notified from the time measuring unit 224 in the current measurement. The measurement time 503 can be, for example, the time notified from the time measuring unit 224 when the measurement is performed in step S402.
ステップS406では、今回の測定により算出された体内水分量を表示部112に表示する。このとき、脱水状態か非脱水状態かの判定結果に応じた表示形態により表示を行う(例えば、脱水状態の場合には、赤色にて体内水分量を表示し、非脱水状態の場合には、青色にて体内水分量を表示する)。
In step S406, the water content in the body calculated by the current measurement is displayed on the display unit 112. At this time, display is performed in a display form according to the determination result of the dehydrated state or the non-dehydrated state (for example, in the case of the dehydrated state, the amount of water in the body is displayed in red, and in the case of the non-dehydrated state, The amount of water in the body is displayed in blue).
以上の説明から明らかなように、本実施形態に係る体内水分計100は、センサ部121を挿入部120の先端面122に固定する一方で、本体部の110の尾部から表示部にかけて、本体部110の外周面を把持部130で覆い、該把持部130により本体部110全体をスライド可能に支持する構成とした。
As is clear from the above description, the in-vivo moisture meter 100 according to the present embodiment fixes the sensor part 121 to the distal end surface 122 of the insertion part 120, while extending from the tail part 110 of the main part to the display part. The outer peripheral surface of 110 is covered with a gripping portion 130, and the entire main body 110 is slidably supported by the gripping portion 130.
これにより、センサ部にスライド機構を設けなくても、センサヘッド123の皮膚への密着を保証する上での押圧力を確保することが可能となる一方で、本体部110及び挿入部120を液密に構成することが可能となった。
Accordingly, it is possible to ensure a pressing force for ensuring the close contact of the sensor head 123 with the skin without providing a slide mechanism in the sensor unit, while the main body unit 110 and the insertion unit 120 are liquidated. It became possible to construct densely.
つまり、体内水分計において、測定精度を維持しつつ、防水性・防汚性を向上させることが可能となった。
In other words, in the moisture meter in the body, it became possible to improve the waterproofness and antifouling properties while maintaining the measurement accuracy.
[第2の実施形態]
上記第1の実施形態では、把持部130が、体内水分計100の本体部110の尾部から表示部にかけて覆う構成としたが、本発明はこれに限定されず、例えば、本体部110の後端面113を除く外周面のみを覆う構成としてもよい。 [Second Embodiment]
In the first embodiment, thegrip 130 is configured to cover from the tail of the body 110 of the body moisture meter 100 to the display. However, the present invention is not limited to this, for example, the rear end surface of the body 110 It is good also as a structure which covers only the outer peripheral surface except 113. FIG.
上記第1の実施形態では、把持部130が、体内水分計100の本体部110の尾部から表示部にかけて覆う構成としたが、本発明はこれに限定されず、例えば、本体部110の後端面113を除く外周面のみを覆う構成としてもよい。 [Second Embodiment]
In the first embodiment, the
図6は、本発明の第2の実施形態に係る体内水分計600の外観構成及び把持部の内部構成を示す図である。なお、上記第1の実施形態において図1を用いて説明した構成と同じ構成については、同じ参照番号を付し、ここでは説明を省略する。以下、上記第1の実施形態との相違点を中心に説明する。
FIG. 6 is a diagram showing the external configuration of the moisture meter 600 in the body according to the second embodiment of the present invention and the internal configuration of the gripping portion. In addition, about the same structure as the structure demonstrated using FIG. 1 in the said 1st Embodiment, the same reference number is attached | subjected and description is abbreviate | omitted here. Hereinafter, the difference from the first embodiment will be mainly described.
図6の6aに示すように、体内水分計600の場合、把持部630は本体部110の後端面113を覆っておらず、本体部110の上面114、下面115、側面116・117のみを覆う、中空かつ無底の筒形状を有している。
6A, in the case of the moisture meter 600 in the body, the gripping part 630 does not cover the rear end surface 113 of the main body part 110, and covers only the upper surface 114, the lower surface 115, and the side surfaces 116 and 117 of the main body part 110. It has a hollow and bottomless cylindrical shape.
また、図6の6bに示すように、本体部110の外周面には、ばねが配されている。ばねの一端は、本体部110の外周面上に突出した本体側突出部601に接続されており、他端は、把持部630の内周面上に突出した把持部側突出部611に接続されている。これにより、本体部110は、把持部630により矢印141a方向に付勢されることとなる。
Further, as shown in 6b of FIG. 6, a spring is disposed on the outer peripheral surface of the main body 110. One end of the spring is connected to the main body side protruding portion 601 protruding on the outer peripheral surface of the main body portion 110, and the other end is connected to the holding portion side protruding portion 611 protruding on the inner peripheral surface of the holding portion 630. ing. As a result, the main body 110 is urged in the direction of the arrow 141 a by the grip 630.
かかる構成のもと、測定者が把持部630を把持した状態で、センサ部121を被検者の腋窩に押圧させると、本体部110が矢印141aの方向にスライドする(図6の6bの紙面右側参照)。
Under such a configuration, when the sensor unit 121 is pressed against the axilla of the subject with the gripper 630 gripped by the measurer, the main body 110 slides in the direction of the arrow 141a (the paper surface of 6b in FIG. 6). See right).
このように、本体部110の外周面と把持部630の内周面との間に弾性部材172を配し、把持部630により本体部110全体をスライド可能に支持することで、上記第1の実施形態と同様の効果を享受することができる。
As described above, the elastic member 172 is disposed between the outer peripheral surface of the main body 110 and the inner peripheral surface of the gripping portion 630, and the entire main body 110 is slidably supported by the gripping portion 630. The same effect as the embodiment can be enjoyed.
[第3の実施形態]
上記第1及び第2の実施形態では、把持部の外周面の形状については特に言及しなかったが、把持部の外周面は、測定者が被検者の体内水分量を測定する際に把持しやすい形状に構成されていることが望ましい。 [Third Embodiment]
In the first and second embodiments, the shape of the outer peripheral surface of the grip portion is not particularly mentioned, but the outer peripheral surface of the grip portion is gripped when the measurer measures the moisture content in the subject's body. It is desirable to be configured in a shape that is easy to do.
上記第1及び第2の実施形態では、把持部の外周面の形状については特に言及しなかったが、把持部の外周面は、測定者が被検者の体内水分量を測定する際に把持しやすい形状に構成されていることが望ましい。 [Third Embodiment]
In the first and second embodiments, the shape of the outer peripheral surface of the grip portion is not particularly mentioned, but the outer peripheral surface of the grip portion is gripped when the measurer measures the moisture content in the subject's body. It is desirable to be configured in a shape that is easy to do.
図7の7a、7bは、上記第2の実施形態において示した把持部の外周面の形状を、測定者が把持しやすい形状に構成した様子を示している。上記第2の実施形態に係る体内水分計600を用いて、測定者が被検者の腋窩にセンサ部121を接触させる場合、本体部110の上面114側に測定者の親指が配され、本体部110の下面115側に測定者の残りの指が配されることとなる。
7a and 7b in FIG. 7 show a state in which the shape of the outer peripheral surface of the gripping portion shown in the second embodiment is configured to be easily gripped by the measurer. When the measurer brings the sensor unit 121 into contact with the subject's axilla using the in-vivo moisture meter 600 according to the second embodiment, the measurer's thumb is arranged on the upper surface 114 side of the main body 110, and the main body The remaining finger of the measurer is arranged on the lower surface 115 side of the unit 110.
このため、本実施形態に係る体内水分計700では、このような指の配置を前提として、把持部730の外周面の形状を形成している。
Therefore, in the in-vivo moisture meter 700 according to the present embodiment, the shape of the outer peripheral surface of the grip portion 730 is formed on the premise of such finger arrangement.
なお、本実施形態では、上記第2の実施形態において示した把持部630の外周面を、測定者が把持しやすい形状に形成した場合について説明したが、本発明はこれに限定されず、上記第1の実施形態において示した把持部130の外周面を、同様に形成するようにしてもよい。
In the present embodiment, the case where the outer peripheral surface of the grip portion 630 shown in the second embodiment is formed in a shape that can be easily gripped by the measurer has been described. However, the present invention is not limited to this, and You may make it form the outer peripheral surface of the holding part 130 shown in 1st Embodiment similarly.
本発明は上記実施の形態に制限されるものではなく、本発明の精神及び範囲から離脱することなく、様々な変更及び変形が可能である。従って、本発明の範囲を公にするために、以下の請求項を添付する。
The present invention is not limited to the above embodiment, and various changes and modifications can be made without departing from the spirit and scope of the present invention. Therefore, in order to make the scope of the present invention public, the following claims are attached.
Claims (3)
- 体内水分計であって、
直線状に形成された本体部と、
前記本体部の一端から湾曲して延設された挿入部と、
前記挿入部の先端面に固定され、被検者の体表面に接触させることで、生体内の水分に関するデータを測定するセンサ部と、
前記本体部の外周面を覆い、前記本体部をスライド可能に支持する把持部と
を備えることを特徴とする体内水分計。 A body moisture meter,
A body portion formed in a straight line;
An insertion portion that is curved and extended from one end of the main body portion;
A sensor unit that measures data on moisture in the living body by being fixed to the distal end surface of the insertion unit and contacting the body surface of the subject,
A body moisture meter, comprising: a grip portion that covers an outer peripheral surface of the main body portion and slidably supports the main body portion. - 前記把持部は、有底の筒形状を有しており、該把持部の底面と、前記本体部の後端面とは、弾性部材を介して接続されていることを特徴とする請求項1に記載の体内水分計。 The said holding part has a bottomed cylindrical shape, The bottom face of this holding part and the rear-end surface of the said main-body part are connected through the elastic member. Body moisture meter as described.
- 前記把持部は、無底の筒形状を有しており、該把持部の内周面と、前記本体部の外周面とは、弾性部材を介して接続されていることを特徴とする請求項1に記載の体内水分計。 The gripping portion has a bottomless cylindrical shape, and the inner peripheral surface of the gripping portion and the outer peripheral surface of the main body portion are connected via an elastic member. 2. The body moisture meter according to 1.
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---|---|---|---|---|
JP2000051153A (en) * | 1998-08-11 | 2000-02-22 | Kanebo Ltd | Skin condition evaluation and device used therefor |
JP2005205041A (en) * | 2004-01-23 | 2005-08-04 | Horiba Ltd | Sensor unit supporting structure of contact type measuring instrument |
WO2012042878A1 (en) * | 2010-09-29 | 2012-04-05 | テルモ株式会社 | Moisture meter |
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JPS59139261A (en) * | 1983-01-31 | 1984-08-10 | 松下電工株式会社 | Vibration massage machine |
JP3688811B2 (en) * | 1995-11-30 | 2005-08-31 | 株式会社モリテックス | Oil moisture measuring device |
US20080287750A1 (en) * | 2002-01-04 | 2008-11-20 | Dune Medical Devices Ltd. | Ergonomic probes |
JP3120546U (en) * | 2005-03-31 | 2006-04-13 | バイオスペース・カンパニー・リミテッド | Body component analysis result sheet |
JP5107696B2 (en) * | 2007-12-27 | 2012-12-26 | 花王株式会社 | Multifunctional probe for measuring skin properties |
JP2012090878A (en) * | 2010-10-28 | 2012-05-17 | Terumo Corp | Moisture meter |
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JP2000051153A (en) * | 1998-08-11 | 2000-02-22 | Kanebo Ltd | Skin condition evaluation and device used therefor |
JP2005205041A (en) * | 2004-01-23 | 2005-08-04 | Horiba Ltd | Sensor unit supporting structure of contact type measuring instrument |
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