JP4432857B2 - Biological information calculation device - Google Patents

Biological information calculation device Download PDF

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JP4432857B2
JP4432857B2 JP2005216434A JP2005216434A JP4432857B2 JP 4432857 B2 JP4432857 B2 JP 4432857B2 JP 2005216434 A JP2005216434 A JP 2005216434A JP 2005216434 A JP2005216434 A JP 2005216434A JP 4432857 B2 JP4432857 B2 JP 4432857B2
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light
biological information
living body
receiving element
light receiving
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和也 近藤
真司 内田
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Panasonic Corp
Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Description

本発明は、たとえば、光を利用して局所皮下脂肪厚などを測定する生体情報演算装置に関するものである。 The present invention is, for example, relates to a biological information arithmetic equipment that measures such as local subcutaneous fat thickness using light.

従来の局所皮下脂肪厚などを測定する光式生体情報測定装置としては、生体表面に光源と受光部を配置し拡散反射光から脂肪厚を測定しているものがあった（たとえば、特許文献１などを参照）。   As a conventional optical biological information measuring apparatus for measuring a local subcutaneous fat thickness and the like, there is a device in which a light source and a light receiving unit are arranged on the surface of a living body and the fat thickness is measured from diffuse reflected light (for example, Patent Document 1). Etc.)

図１１は、そのような従来の光式脂肪厚計の模式的な断面図である。   FIG. 11 is a schematic cross-sectional view of such a conventional optical fat thickness meter.

ＣＰＵ１からの指令により駆動回路２によって送光素子３が駆動され、駆動された送光素子３が近赤外光を発する。   The light transmitting element 3 is driven by the drive circuit 2 in response to a command from the CPU 1, and the driven light transmitting element 3 emits near infrared light.

この近赤外光は、皮下脂肪４を通り散乱吸収を受けるとともに、アナログスイッチ８で選択される腕、足、腹に対応した受光素子５、６、７の内のいずれか一つによって受光され、ＡＭＰ９を介してＣＰＵ１に取り込まれる。   This near-infrared light passes through the subcutaneous fat 4 and is scattered and absorbed, and is received by any one of the light receiving elements 5, 6, 7 corresponding to the arms, legs, and abdomen selected by the analog switch 8. , Is taken into the CPU 1 via the AMP9.

ここに、ＣＰＵ１は、測定部位選択入力部１０でいずれかのボタンが選択されているかに応じて受光素子５、６、７の内のいずれの出力を利用するかを決定し、アナログスイッチ８を動作させる。   Here, the CPU 1 determines which output of the light receiving elements 5, 6, and 7 is to be used depending on which button is selected in the measurement site selection input unit 10, and sets the analog switch 8. Make it work.

なお、他の従来技術として、さらに複数の異なる光路長が得られるように送光素子と受光素子とを配置し、得られた受光量から皮膚の色等のばらつき補正を行うものがあった
（例えば、特許文献２などを参照）。
特開平１１−２３９５７３号公報（例えば、第４頁、図６） 特開２０００−１５５０９１号公報（例えば、第５頁、図４） As another conventional technique, there is a technique in which a light transmitting element and a light receiving element are arranged so that a plurality of different optical path lengths can be obtained, and a variation in skin color or the like is corrected from the amount of received light ( For example, see Patent Document 2).
JP-A-11-239573 (for example, page 4, FIG. 6) Japanese Unexamined Patent Publication No. 2000-155091 (for example, page 5, FIG. 4)

ところで、上述した従来技術における光式脂肪厚計は、現在までのところ、主として実験レベルのものが作製されているに過ぎず、実験室内部など不要な光が少ない環境で使用されているのが普通である。   By the way, the optical fat thickness meter in the prior art described above has been mainly produced only at the experimental level so far, and is used in an environment where there is little unnecessary light such as in the laboratory. It is normal.

しかしながら、このような光式脂肪厚計では、不要な光が多い環境で使用されると、受光素子５、６、７は、送光素子３からの光だけではなく、生体表面を照らして生体内を透過してきた太陽光や照明器具からの照明光である外乱光１１も受光してしまう（図１１参照）ことに、本発明者は気付いた。   However, in such an optical fat thickness meter, when used in an environment where there is a lot of unnecessary light, the light receiving elements 5, 6, and 7 are not only light from the light transmitting element 3 but also illuminate the surface of the living body. The inventor has noticed that sunlight that has passed through the body and disturbance light 11 that is illumination light from a lighting fixture are also received (see FIG. 11).

そして、外乱光１１が受光されてしまうためにＳ／Ｎ比（信号雑音比）が小さくなってしまい、実用レベルの光式脂肪厚計においては局所皮下脂肪厚などの測定精度が悪化してしまう恐れがあることを、本発明者は見抜いた。   Then, since the disturbance light 11 is received, the S / N ratio (signal-to-noise ratio) becomes small, and the measurement accuracy such as the local subcutaneous fat thickness deteriorates in the practical optical fat thickness meter. The present inventor has found out that there is a fear.

また、このような光式脂肪厚計は、実用化に向けて装置の小型化を目指す傾向が顕著になってきている。   In addition, such optical fat thickness gauges have become prominent in the trend toward downsizing the apparatus for practical use.

しかしながら、このような光式脂肪厚計では、装置の小型化が進むにつれて、送光素子３や受光素子５、６、７を含む測定面の大きさも小さくなってきている（図１１参照）ことに、本発明者は気付いた。   However, in such an optical fat thickness meter, the size of the measurement surface including the light transmitting element 3 and the light receiving elements 5, 6, and 7 is becoming smaller as the apparatus becomes smaller (see FIG. 11). The present inventor has noticed.

そして、受光される外乱光の影響が測定面の大きさが小さくなるにともなって大きくなるとＳ／Ｎ比が小さくなってしまい、測定精度が悪化してしまう恐れがあることを、本発明者は見抜いた。   Then, the inventor believes that if the influence of the ambient light received increases as the size of the measurement surface decreases, the S / N ratio decreases and the measurement accuracy may deteriorate. I have seen through.

本発明は、上記従来のこのような課題を考慮し、たとえば、局所皮下脂肪厚などの測定精度をより向上させることができる生体情報演算装置を提供することを目的とする。 The present invention, the conventional view of the above problem, for example, and an object thereof is to provide a biological information calculation equipment that can improve the measurement accuracy such as local subcutaneous fat thickness.

第１の本発明は、
測定面に設けられた、生体に対して光を発光する光源と、
前記測定面に設けられた、前記生体を通過した光を受光する受光器と、
前記生体の表面に押し当てる際の押圧方向に突出するとともに、前記光源および前記受光器を実質的に取り囲むように設けられた突起部と、
前記受光された光の量に基づいて、前記生体に関する情報を演算する生体情報演算部と、
前記測定面が前記生体の表面に押し当てられている押力を測定する測定面押力測定部と、
前記測定された押力の大きさが規定値を越えているか否かを判断する判断部とを備え、
前記生体情報演算部は、前記測定された押力の大きさが規定値を越えていると判断された場合に、前記生体に関する情報を演算する、生体情報演算装置である。 The first aspect of the present invention is
A light source provided on the measurement surface for emitting light to the living body;
A light receiver provided on the measurement surface for receiving light that has passed through the living body;
A protrusion that protrudes in the pressing direction when pressed against the surface of the living body and that substantially surrounds the light source and the light receiver;
A biological information calculation unit that calculates information about the living body based on the amount of the received light ;
A measurement surface pressing force measurement unit that measures the pressing force with which the measurement surface is pressed against the surface of the living body;
Bei example a determination unit that the magnitude of the measured pushing force is determined whether it exceeds a specified value,
The biological information calculation unit is a biological information calculation device that calculates information related to the living body when it is determined that the magnitude of the measured pressing force exceeds a specified value .

第２の本発明は、
前記受光器は、前記光が発光されている状態で前記光を受光するとともに、前記光が発光されていない状態でも前記光を受光し、
前記生体情報演算部は、前記光が発光されていない状態で受光された前記光の量と前記光が発光されている状態で受光された前記光の量とに基づいて、前記生体に関する情報を演算する第１の本発明の、生体情報演算装置である。 The second aspect of the present invention
The light receiver receives the light in a state where the light is emitted, and receives the light even in a state where the light is not emitted,
The biological information calculation unit obtains information on the living body based on the amount of the light received in a state where the light is not emitted and the amount of the light received in a state where the light is emitted. It is a biological information calculation device according to the first aspect of the present invention for calculating.

第３の本発明は、
前記突起部は、前記測定面の外周に沿って連続的に設けられている第１の本発明の、生体情報演算装置である。 The third aspect of the present invention provides
The protrusion is the biological information calculation apparatus according to the first aspect of the present invention, which is continuously provided along the outer periphery of the measurement surface.

第４の本発明は、
前記測定面の外周は、実質的に円周であり、
前記受光器は、前記円周の実質的な中央に配置されている第３の本発明の、生体情報演算装置である。 The fourth invention relates to
The outer circumference of the measurement surface is substantially a circumference,
The light receiver is the biological information arithmetic device according to the third aspect of the present invention, which is disposed substantially at the center of the circumference.

第５の本発明は、
前記突起部に架橋するように設けられた凸部をさらに備え、
前記光源は、前記凸部に配置されており、
前記受光器は、前記凸部に配置されている第１の本発明の、生体情報演算装置である。 The fifth aspect of the present invention relates to
Further comprising a convex portion provided so as to crosslink the protruding portion,
The light source is disposed on the convex portion,
The light receiver is the biological information calculation device according to the first aspect of the present invention, which is disposed on the convex portion.

第６の本発明は、
前記測定面の外周は、実質的に円周であり、
前記凸部は、前記円周の実質的な中央を横切るように設けられている第５の本発明の、生体情報演算装置である。 The sixth invention relates to
The outer circumference of the measurement surface is substantially a circumference,
The said convex part is a biometric information calculating apparatus of the 5th this invention provided so that the substantial center of the said circumference might be crossed.

第７の本発明は、
前記凸部が前記生体の表面に押し当てられている押力を測定する凸部押力測定部をさらに備え、
前記生体情報演算部は、前記測定された押力による前記生体の表面の変形を考慮して、前記生体に関する情報を演算する第５の本発明の、生体情報演算装置である。 The seventh invention relates to
A convex portion pressing force measuring unit that measures the pressing force with which the convex portion is pressed against the surface of the living body;
The biological information calculation unit is a biological information calculation apparatus according to a fifth aspect of the present invention that calculates information related to the living body in consideration of deformation of the surface of the living body due to the measured pressing force.

第８の本発明は、
前記受光器は、前記光を受光する第一の受光素子と前記光を受光する第二の受光素子とを有し、
前記生体情報演算部は、前記第一の受光素子によって受光された光の量と前記第二の受光素子によって受光された光の量とに基づいて、前記生体に関する情報を演算する第１の本発明の、生体情報演算装置である。 The eighth invention relates to
The light receiver includes a first light receiving element that receives the light and a second light receiving element that receives the light,
The biological information calculation unit is a first book that calculates information about the living body based on the amount of light received by the first light receiving element and the amount of light received by the second light receiving element. It is a biological information arithmetic device of invention.

第９の本発明は、
前記光源は、前記光を発光する発光素子を有し、
前記発光素子と前記第一の受光素子との間の距離は、実質的に１５ｍｍ以上２５ｍｍ以下であり、
前記発光素子と前記第二の受光素子との間の距離は、実質的に３５ｍｍ以上５０ｍｍ以下である第８の本発明の、生体情報演算装置である。 The ninth invention relates to
The light source has a light emitting element that emits the light,
The distance between the light emitting element and the first light receiving element is substantially 15 mm or more and 25 mm or less,
The distance between the light emitting element and the second light receiving element is the biological information arithmetic apparatus according to the eighth aspect of the present invention, which is substantially 35 mm or more and 50 mm or less.

本発明は、局所皮下脂肪厚などの測定精度をより向上させることができるという長所を有する。   The present invention has the advantage that the measurement accuracy such as local subcutaneous fat thickness can be further improved.

以下、本発明の実施の形態について、図面を用いて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

（実施の形態１）
はじめに、図１、２を主として参照しながら、本実施の形態の光式脂肪厚計の構成について説明する。 (Embodiment 1)
First, the configuration of the optical fat thickness meter according to the present embodiment will be described with reference mainly to FIGS.

なお、図１は、本発明の実施の形態１の光式脂肪厚計の模式的な断面図である。また、図２は、本発明の実施の形態１の光式脂肪厚計の外観図である（図２においては、突起部１７の最も突出している部分に補助的な線を記入した）。   FIG. 1 is a schematic cross-sectional view of the optical fat thickness meter according to Embodiment 1 of the present invention. FIG. 2 is an external view of the optical fat thickness meter according to the first embodiment of the present invention (in FIG. 2, auxiliary lines are drawn on the most protruding portions of the protrusions 17).

ここに、図１は、受光部１５と光源部１６とを含む、測定面１４が押し当てられていない生体表面１３の平坦部分に垂直な平面に関する断面図である。   FIG. 1 is a cross-sectional view relating to a plane that includes the light receiving unit 15 and the light source unit 16 and that is perpendicular to the flat portion of the biological surface 13 to which the measurement surface 14 is not pressed.

測定面１４は生体表面１３に密着する直径１００ｍｍ程度の円盤状の面であり、そのほぼ中央に光センサであるホトダイオードを含んだ受光部１５が配置されている。   The measurement surface 14 is a disk-shaped surface having a diameter of about 100 mm that is in close contact with the living body surface 13, and a light receiving unit 15 including a photodiode that is a photosensor is disposed at substantially the center thereof.

測定面１４上の受光部１５から４５ｍｍの距離に波長８５０ｎｍ付近の近赤外光を発光するＬＥＤを含んだ光源部１６が配置されている。   A light source unit 16 including an LED that emits near-infrared light having a wavelength of about 850 nm is disposed at a distance of 45 mm from the light receiving unit 15 on the measurement surface 14.

ここに、たとえば日本人の皮下脂肪厚は０〜６０ｍｍ程度の範囲にあることが多いため、皮下脂肪厚計測を行うためには、受光部１５と光源部１６との間の距離が３５〜５０ｍｍ程度の範囲にあることが好ましい。   Here, for example, the subcutaneous fat thickness of Japanese people is often in the range of about 0 to 60 mm. Therefore, in order to measure the subcutaneous fat thickness, the distance between the light receiving unit 15 and the light source unit 16 is 35 to 50 mm. It is preferable to be in the range of about.

測定面１４の周囲には、高さ５ｍｍの突起部１７が、装置が使用時にぐらついて安定性が損なわれることがないよう円周状に配置されている。   Around the measurement surface 14, a protrusion 17 having a height of 5 mm is circumferentially arranged so that the apparatus does not wobble during use and the stability is not impaired.

突起部１７は、生体にあたっても痛くないように丸みがついている。   The protrusion 17 is rounded so that it does not hurt even when it comes to the living body.

なお、突起部１７の材質は、生体にあたっても痛くないように適度な柔軟性を有することが好ましい。また、光源部１６が含むＬＥＤの発光する波長８５０ｎｍ付近の近赤外光を吸収できるように低い反射率を有することが好ましい。このような柔軟性および低反射率を有する材質の具体例としては、黒ＡＢＳ樹脂などがある。   In addition, it is preferable that the material of the projection part 17 has a moderate softness | flexibility so that it may not hurt in the living body. Moreover, it is preferable to have a low reflectance so that near-infrared light with a wavelength of about 850 nm emitted by the LED included in the light source unit 16 can be absorbed. Specific examples of the material having such flexibility and low reflectance include black ABS resin.

押力検知部１８は、測定面１４を生体表面１３に押し付ける力を検知する手段である。   The pressing force detection unit 18 is means for detecting a force pressing the measurement surface 14 against the living body surface 13.

押力検知部１８は、センサにロードセルやひずみゲージを用いたフォースゲージの構成や、バネと押しボタンスイッチとを組み合わせた構成を有している。   The pressing force detection unit 18 has a configuration of a force gauge using a load cell or a strain gauge as a sensor, or a configuration combining a spring and a push button switch.

演算部１９は、光源部１６を制御し、受光部１５から得られた信号から皮下脂肪厚などの局所生体情報を演算する手段である。   The calculation unit 19 is means for controlling the light source unit 16 and calculating local biological information such as subcutaneous fat thickness from the signal obtained from the light receiving unit 15.

また、演算部１９は、入力部２２から入力された情報と局所生体情報から、生体の肥満度合いなどの健康状態情報を演算する手段である。   The computing unit 19 is a means for computing health state information such as the degree of obesity of the living body from the information input from the input unit 22 and the local biological information.

表示部２０は、算出された局所生体情報などを表示する手段である。   The display unit 20 is a means for displaying the calculated local biometric information and the like.

通信部２１は、性別情報、年齢情報、計測部位情報などを外部機器との間で送受信する手段である。   The communication unit 21 is means for transmitting / receiving gender information, age information, measurement site information, and the like to / from an external device.

また、通信部２１は、演算部１９によって演算された局所生体情報や健康状態情報などを外部機器に対して送信する手段である。   The communication unit 21 is means for transmitting local biometric information, health condition information, and the like calculated by the calculation unit 19 to an external device.

入力部２２は、性別、年齢、計測部位情報などを入力する手段である。   The input unit 22 is means for inputting sex, age, measurement site information, and the like.

音発生部２３は、測定の開始から終了までを使用者に音声で知らせる手段である。   The sound generator 23 is means for notifying the user from the start to the end of the measurement by voice.

振動発生部２４は、測定の開始から終了までを使用者に振動で知らせる手段である。   The vibration generating unit 24 is means for notifying the user of vibration from the start to the end of measurement.

なお、突起部１７は本発明の突起部に対応し、光源部１６は本発明の光源に対応し、受光部１５は本発明の受光器に対応し、演算部１９は本発明の生体情報演算部に対応する。また、押力検知部１８は、本発明の測定面押力測定部および本発明の判断部を含む手段に対応する。また、本実施の形態の光式脂肪厚計は、本発明の生体情報演算装置に対応する。   The protrusion 17 corresponds to the protrusion of the present invention, the light source 16 corresponds to the light source of the present invention, the light receiver 15 corresponds to the light receiver of the present invention, and the calculation unit 19 calculates biological information of the present invention. Corresponding to the part. The pressing force detection unit 18 corresponds to means including the measurement surface pressing force measurement unit of the present invention and the determination unit of the present invention. Moreover, the optical fat thickness meter of this Embodiment respond | corresponds to the biometric information calculating apparatus of this invention.

つぎに、本実施の形態の光式脂肪厚計の動作について説明する。なお、本実施の形態の光式脂肪厚計の動作について説明しながら、本発明の生体情報演算方法の一実施の形態についても説明する（以下の実施の形態においても同様である）。   Next, the operation of the optical fat thickness meter according to the present embodiment will be described. While describing the operation of the optical fat thickness meter of the present embodiment, an embodiment of the biological information calculation method of the present invention will also be described (the same applies to the following embodiments).

使用者は、測定部位に測定面１４を押し当てる。   The user presses the measurement surface 14 against the measurement site.

押力検知部１８は、規定値以上の押力が印加されているか否かを判定する。   The pressing force detection unit 18 determines whether a pressing force equal to or greater than a specified value is being applied.

ここに、規定値とは、あらかじめ求めておいた脂肪がそれ以上つぶれなくなるときの測定面１４を押し当てる力の値である。   Here, the specified value is a value of a force that presses the measurement surface 14 when the fat that has been obtained in advance is no longer crushed.

演算部１９は、押力検知部１８が規定値以上の押力が印加されていると判定すると、受光部１５での受光量にもとづいて外乱光１１が伝播してきた成分に対応する信号Ｖ０を演算する。 When the calculation unit 19 determines that the pressing force detection unit 18 is applying a pressing force equal to or greater than the specified value, the signal V 0 corresponding to the component that the disturbance light 11 has propagated based on the amount of light received by the light receiving unit 15 is obtained. Is calculated.

つぎに、光源部１６が、発光する。   Next, the light source unit 16 emits light.

そして、演算部１９は、このときの受光部１５での受光量にもとづいて信号Ｖを演算する。   Then, the calculation unit 19 calculates the signal V based on the amount of light received by the light receiving unit 15 at this time.

演算部１９は、光源部１６の発光による光が受光部１５に伝播してきた受光量に対応する信号
（数１）
Ｗ＝Ｖ−Ｖ０
を演算する。 The calculation unit 19 is a signal corresponding to the amount of light received by the light emitted from the light source unit 16 and transmitted to the light receiving unit 15 (Equation 1)
W = V−V 0
Is calculated.

近赤外光は、皮膚２５、筋肉２６に比べると、皮下脂肪４では強く散乱され吸収が少ない。   Near-infrared light is strongly scattered and less absorbed by the subcutaneous fat 4 than the skin 25 and muscle 26.

そのため、近赤外光は脂肪内部を良く伝播し、Ｗは皮下脂肪厚が厚いほど増加する。   Therefore, near-infrared light propagates well in fat, and W increases as the subcutaneous fat thickness increases.

演算部１９は、そのような原理を利用し、光源部１６の発光による光が受光部１５に伝播してきた受光量に対応する信号Ｗにもとづいて皮下脂肪厚Ｘを演算する。   Using such a principle, the calculation unit 19 calculates the subcutaneous fat thickness X based on the signal W corresponding to the amount of light received by the light emitted from the light source unit 16 transmitted to the light receiving unit 15.

表示部２０は、演算された皮下脂肪厚Ｘを表示する。   The display unit 20 displays the calculated subcutaneous fat thickness X.

以上においては、本実施の形態の光式脂肪厚計の構成および動作について説明した。   The configuration and operation of the optical fat thickness meter according to the present embodiment has been described above.

このように、生体表面１３に測定面１４を押し付けて測定を開始することで、測定ごとの押力の変動を抑制することができる。   In this way, by pressing the measurement surface 14 against the biological surface 13 and starting the measurement, it is possible to suppress fluctuations in the pressing force for each measurement.

また、測定面１４を押し当てると、皮下脂肪４は皮膚２５や筋肉２６と比較して柔らかいので、突起部１７の直下にある皮下脂肪が局所的につぶれ薄くなる。   Further, when the measurement surface 14 is pressed, the subcutaneous fat 4 is softer than the skin 25 and muscle 26, so that the subcutaneous fat immediately below the protrusion 17 is locally crushed and thinned.

すると、突起部１７の直下では光が伝播しにくくなるため、太陽や照明光からの外乱光１１が減少し、Ｖ０も減少する。 Then, directly under the protrusions 17 since light is hardly propagated, ambient light 11 from the sun or the illumination light decreases, V 0 is also reduced.

結果的に、Ｖ０の影響によるＷの測定誤差が減少し、皮下脂肪厚Ｘの測定精度も向上することとなる。 As a result, the measurement error of W due to the influence of V 0 is reduced, and the measurement accuracy of the subcutaneous fat thickness X is also improved.

（実施の形態２）
はじめに、図３、４を主として参照しながら、本実施の形態の光式脂肪厚計の構成について説明する。 (Embodiment 2)
First, the configuration of the optical fat thickness meter of the present embodiment will be described with reference mainly to FIGS.

なお、図３は、本発明の実施の形態２の光式脂肪厚計の模式的な断面図である。また、図４は、本発明の実施の形態２の光式脂肪厚計の外観図である（図４においても、突起部１７の最も突出している部分に補助的な線を記入した）。   FIG. 3 is a schematic cross-sectional view of the optical fat thickness meter according to Embodiment 2 of the present invention. FIG. 4 is an external view of the optical fat thickness meter according to the second embodiment of the present invention (also in FIG. 4, auxiliary lines are written in the most protruding portion of the protruding portion 17).

ここに、図３は、光源部１６と第一の受光素子２７と第二の受光素子２８とを含む、測定面１４が押し当てられていない生体表面１３の平坦部分に垂直な平面に関する断面図である。   FIG. 3 is a cross-sectional view relating to a plane perpendicular to the flat portion of the living body surface 13 including the light source unit 16, the first light receiving element 27, and the second light receiving element 28, to which the measurement surface 14 is not pressed. It is.

本実施の形態の光式脂肪厚計の構成は、前述した実施の形態１の光式脂肪厚計の構成と類似している。   The configuration of the optical fat thickness meter according to the present embodiment is similar to the configuration of the optical fat thickness meter according to the first embodiment described above.

ただし、本実施の形態の光式脂肪厚計は、受光部１５（図１参照）の代わりに第一の受光素子２７、および第二の受光素子２８を備えている。   However, the optical fat thickness meter of the present embodiment includes a first light receiving element 27 and a second light receiving element 28 instead of the light receiving unit 15 (see FIG. 1).

第二の受光素子２８は測定面１４′のほぼ中央に配置されており、第一の受光素子２７は第二の受光素子２８と光源部１６との間に配置されている。   The second light receiving element 28 is disposed substantially at the center of the measurement surface 14 ′, and the first light receiving element 27 is disposed between the second light receiving element 28 and the light source unit 16.

本実施の形態においては、第一の受光素子２７と光源部１６との間の距離は２３ｍｍであり、第二の受光素子２８と光源部１６との間の距離は４５ｍｍである。   In the present embodiment, the distance between the first light receiving element 27 and the light source unit 16 is 23 mm, and the distance between the second light receiving element 28 and the light source unit 16 is 45 mm.

ここに、たとえば日本人の皮下脂肪厚は前述したように０〜６０ｍｍ程度の範囲にあることが多く、皮膚の個体差の影響が顕著に現れる受光素子と光源部との間の距離は１５〜２５ｍｍ程度の範囲にあり、皮膚の個体差の影響および皮下脂肪厚の影響が顕著に現れる受光素子と光源部との間の距離は３５〜５０ｍｍ程度の範囲にあることが多いため、皮膚の個体差のばらつき補正を行うためには、第一の受光素子２７と光源部１６との間の距離が１５〜２５ｍｍ程度の範囲にあり、第二の受光素子２８と光源部１６との間の距離が３５〜５０ｍｍ程度の範囲にあることが好ましい。   Here, for example, the subcutaneous fat thickness of Japanese people is often in the range of about 0 to 60 mm as described above, and the distance between the light receiving element and the light source part where the influence of individual differences of the skin is remarkable is 15 to Since the distance between the light receiving element and the light source part, which is in the range of about 25 mm and the influence of individual skin differences and the effect of subcutaneous fat thickness, is often in the range of about 35 to 50 mm, In order to perform the variation correction of the difference, the distance between the first light receiving element 27 and the light source unit 16 is in the range of about 15 to 25 mm, and the distance between the second light receiving element 28 and the light source unit 16. Is preferably in the range of about 35 to 50 mm.

なお、第一の受光素子２７、および第二の受光素子２８を含む手段は本発明の受光器に対応し、演算部１９′は本発明の生体情報演算部に対応する。また、押力検知部１８は、本発明の測定面押力測定部および本発明の判断部を含む手段に対応する。また、本実施の形態の光式脂肪厚計は、本発明の生体情報演算装置に対応する。   The means including the first light receiving element 27 and the second light receiving element 28 corresponds to the light receiver of the present invention, and the calculation unit 19 ′ corresponds to the biological information calculation unit of the present invention. The pressing force detection unit 18 corresponds to means including the measurement surface pressing force measurement unit of the present invention and the determination unit of the present invention. Moreover, the optical fat thickness meter of this Embodiment respond | corresponds to the biometric information calculating apparatus of this invention.

つぎに、本実施の形態の光式脂肪厚計の動作について説明する。   Next, the operation of the optical fat thickness meter according to the present embodiment will be described.

使用者は、測定部位に測定面１４′を押し当てる。   The user presses the measurement surface 14 'against the measurement site.

押力検知部１８は、規定値以上の押力が印加されているか否かを判定する。   The pressing force detection unit 18 determines whether a pressing force equal to or greater than a specified value is being applied.

演算部１９′は、押力検知部１８が規定値以上の押力が印加されていると判定すると、第一の受光素子２７での受光量にもとづいて外乱光１１が伝播してきた成分に対応する信号Ｖ０ １′を演算する。 When the calculation unit 19 ′ determines that the pressing force detection unit 18 is applying a pressing force equal to or greater than the specified value, the calculation unit 19 ′ responds to the component that the disturbance light 11 has propagated based on the amount of light received by the first light receiving element 27. The signal V 0 1 ′ to be calculated is calculated.

同様に、演算部１９′は、第二の受光素子２８での受光量にもとづいて外乱光１１が伝播してきた成分に対応する信号Ｖ０ ２′を演算する。 Similarly, the calculation unit 19 ′ calculates a signal V 0 2 ′ corresponding to the component that the disturbance light 11 has propagated based on the amount of light received by the second light receiving element 28.

つぎに、光源部１６が、発光する。   Next, the light source unit 16 emits light.

そして、演算部１９′は、このときの第一の受光素子２７での受光量にもとづいて信号Ｖ１′を演算する。演算部１９′は、光源部１６の発光による光が第一の受光素子２７に伝播してきた受光量に対応する信号
（数２）
Ｗ１′＝Ｖ１′−Ｖ０ １′
を演算する。 Then, the calculation unit 19 ′ calculates the signal V 1 ′ based on the amount of light received by the first light receiving element 27 at this time. The arithmetic unit 19 ′ is a signal corresponding to the amount of light received by the light emitted from the light source unit 16 and transmitted to the first light receiving element 27 (Equation 2)
W 1 ′ = V 1 ′ −V 0 1 ′
Is calculated.

同様に、演算部１９′は、このときの第二の受光素子２８での受光量にもとづいて信号Ｖ２′を演算する。演算部１９′は、光源部１６の発光による光が第二の受光素子２８に伝播してきた受光量に対応する信号
（数３）
Ｗ２′＝Ｖ２′−Ｖ０ ２′
を演算する。 Similarly, the calculation unit 19 ′ calculates the signal V 2 ′ based on the amount of light received by the second light receiving element 28 at this time. The arithmetic unit 19 ′ is a signal corresponding to the amount of light received by the light emitted from the light source unit 16 and propagated to the second light receiving element 28 (Equation 3)
W 2 '= V 2 ' -V 0 2 '
Is calculated.

演算部１９′は、光源部１６の発光による光が第一の受光素子２７に伝播してきた受光量に対応する信号Ｗ１′、光源部１６の発光による光が第二の受光素子２８に伝播してきた受光量に対応する信号Ｗ２′にもとづいて、皮膚２５の個体差のばらつき補正を行って皮下脂肪厚Ｘ′を演算する。 The computing unit 19 ′ transmits a signal W 1 ′ corresponding to the amount of light received by the light emitted from the light source unit 16 to the first light receiving element 27, and the light generated by the light emitted from the light source unit 16 propagates to the second light receiving element 28. Based on the signal W 2 ′ corresponding to the received light amount, the variation in individual differences of the skin 25 is corrected and the subcutaneous fat thickness X ′ is calculated.

表示部２０は、演算された皮下脂肪厚Ｘ′を表示する。   The display unit 20 displays the calculated subcutaneous fat thickness X ′.

以上においては、本実施の形態の光式脂肪厚計の構成および動作について説明した。   The configuration and operation of the optical fat thickness meter according to the present embodiment has been described above.

このように、光源部１６から生体内を伝播して第一の受光素子２７、第二の受光素子２８で受光された光の受光量に対応する２つの信号の比から皮下脂肪厚を算出することで、皮膚２５の色および厚みの個体差ばらつきが補正された皮下脂肪厚計測が可能となる。   As described above, the subcutaneous fat thickness is calculated from the ratio of the two signals corresponding to the amount of light received by the first light receiving element 27 and the second light receiving element 28 after propagating from the light source unit 16 in the living body. Thus, it is possible to measure the subcutaneous fat thickness in which the variation in individual color and thickness of the skin 25 is corrected.

（実施の形態３）
はじめに、図５、６、７を主として参照しながら、本実施の形態の光式脂肪厚計の構成について説明する。 (Embodiment 3)
First, the configuration of the optical fat thickness meter of the present embodiment will be described with reference mainly to FIGS.

なお、図５は、本発明の実施の形態３の光式脂肪厚計の模式的な断面図（その１）である。また、図６は、本発明の実施の形態３の光式脂肪厚計の模式的な断面図（その２）である。また、図７は、本発明の実施の形態３の光式脂肪厚計の外観図である。   FIG. 5 is a schematic sectional view (No. 1) of the optical fat thickness meter according to the third embodiment of the present invention. FIG. 6 is a schematic sectional view (No. 2) of the optical fat thickness meter according to the third embodiment of the present invention. FIG. 7 is an external view of the optical fat thickness meter according to the third embodiment of the present invention.

ここに、図５は、光源部１６と第一の受光素子２７と第二の受光素子２８とを含む、測定面１４″が押し当てられていない生体表面１３の平坦部分に垂直な第一の平面に関する断面図であり、図６は、第二の受光素子２８を含む、測定面１４″が押し当てられていない生体表面１３の平坦部分と第一の平面とに垂直な第二の平面に関する断面図である。   Here, FIG. 5 shows the first perpendicular to the flat portion of the living body surface 13 where the measurement surface 14 ″ is not pressed against, including the light source unit 16, the first light receiving element 27, and the second light receiving element 28. FIG. 6 is a cross-sectional view relating to a plane, and FIG. 6 relates to a second plane perpendicular to the flat portion of the biological surface 13 and the first plane, to which the measurement surface 14 ″ is not pressed, including the second light receiving element 28. It is sectional drawing.

本実施の形態の光式脂肪厚計の構成は、前述した実施の形態２の光式脂肪厚計の構成と類似している。   The configuration of the optical fat thickness meter according to the present embodiment is similar to the configuration of the optical fat thickness meter according to the second embodiment described above.

ただし、本実施の形態の光式脂肪厚計は、光源部１６、第一の受光素子２７、第二の受光素子２８を有する、測定面１４″の中央に突起部１７″に架橋するように設けられた高さ５ｍｍ横幅５ｍｍの細長い突起形状２９を備えている。   However, the optical fat thickness meter of the present embodiment includes the light source unit 16, the first light receiving element 27, and the second light receiving element 28 so as to be bridged with the protrusion 17 ″ at the center of the measurement surface 14 ″. It is provided with an elongated protrusion 29 having a height of 5 mm and a width of 5 mm.

第二の受光素子２８は突起形状２９のほぼ中央に配置されており、第一の受光素子２７は第二の受光素子２８と光源部１６との間に配置されている。   The second light receiving element 28 is disposed substantially at the center of the protrusion 29, and the first light receiving element 27 is disposed between the second light receiving element 28 and the light source unit 16.

本実施の形態においては、第一の受光素子２７と光源部１６との間の距離は２３ｍｍであり、第二の受光素子２８と光源部１６との間の距離は４５ｍｍである。   In the present embodiment, the distance between the first light receiving element 27 and the light source unit 16 is 23 mm, and the distance between the second light receiving element 28 and the light source unit 16 is 45 mm.

ここに、前述した理由により、皮膚の個体差のばらつき補正を行うためには、第一の受光素子２７と光源部１６との間の距離が１５〜２５ｍｍ程度の範囲にあり、第二の受光素子２８と光源部１６との間の距離が３５〜５０ｍｍ程度の範囲にあることが好ましい。   Here, for the reason described above, in order to perform variation correction of individual differences in skin, the distance between the first light receiving element 27 and the light source unit 16 is in the range of about 15 to 25 mm, and the second light receiving is performed. The distance between the element 28 and the light source unit 16 is preferably in the range of about 35 to 50 mm.

なお、突起部１７″は本発明の突起部に対応し、第一の受光素子２７、および第二の受光素子２８を含む手段は本発明の受光器に対応し、演算部１９″は本発明の生体情報演算部に対応する。また、突起形状２９は、本発明の凸部に対応する。また、押力検知部１８は、本発明の凸部押力測定部に対応する。また、本実施の形態の光式脂肪厚計は、本発明の生体情報演算装置に対応する。   The protrusion 17 ″ corresponds to the protrusion of the present invention, the means including the first light receiving element 27 and the second light receiving element 28 corresponds to the light receiver of the present invention, and the arithmetic unit 19 ″ is the present invention. Corresponds to the biological information calculation unit. Further, the protrusion shape 29 corresponds to the convex portion of the present invention. The pressing force detector 18 corresponds to the convex pressing force measuring unit of the present invention. Moreover, the optical fat thickness meter of this Embodiment respond | corresponds to the biometric information calculating apparatus of this invention.

つぎに、本実施の形態の光式脂肪厚計の動作について説明する。   Next, the operation of the optical fat thickness meter according to the present embodiment will be described.

使用者は、測定部位に測定面１４″を押し当てる。   The user presses the measurement surface 14 ″ against the measurement site.

押力検知部１８は、規定値以上の押力が印加されているか否かを判定する。   The pressing force detection unit 18 determines whether a pressing force equal to or greater than a specified value is being applied.

演算部１９″は、押力検知部１８が規定値以上の押力が印加されていると判定すると、第一の受光素子２７での受光量にもとづいて外乱光１１が伝播してきた成分に対応する信号Ｖ０ １″を演算する。 If the pressing force detection unit 18 determines that the pressing force greater than the specified value is applied, the calculation unit 19 ″ corresponds to the component that the disturbance light 11 has propagated based on the amount of light received by the first light receiving element 27. The signal V 0 1 ″ to be calculated is calculated.

同様に、演算部１９″は、第二の受光素子２８での受光量にもとづいて外乱光１１が伝播してきた成分に対応する信号Ｖ０ ２″を演算する。 Similarly, the calculation unit 19 ″ calculates a signal V 0 2 ″ corresponding to the component that the disturbance light 11 has propagated based on the amount of light received by the second light receiving element 28.

つぎに、光源部１６が、発光する。   Next, the light source unit 16 emits light.

そして、演算部１９″は、このときの第一の受光素子２７での受光量にもとづいて信号Ｖ１″を演算する。演算部１９″は、光源部１６の発光による光が第一の受光素子２７に伝播してきた受光量に対応する信号
（数４）
Ｗ１″＝Ｖ１″−Ｖ０ １″
を演算する。 The computing unit 19 ″ computes the signal V 1 ″ based on the amount of light received by the first light receiving element 27 at this time. The calculation unit 19 ″ receives a signal corresponding to the amount of light received by the light emitted from the light source unit 16 and transmitted to the first light receiving element 27 (Equation 4).
W 1 ″ = V 1 ″ −V 0 1 ″
Is calculated.

同様に、演算部１９″は、このときの第二の受光素子２８での受光量にもとづいて信号Ｖ２″を演算する。演算部１９″は、光源部１６の発光による光が第二の受光素子２８に伝播してきた受光量に対応する信号
（数５）
Ｗ２″＝Ｖ２″−Ｖ０ ２″
を演算する。 Similarly, the calculation unit 19 ″ calculates the signal V 2 ″ based on the amount of light received by the second light receiving element 28 at this time. The calculation unit 19 ″ receives a signal corresponding to the amount of light received by the light emitted from the light source unit 16 and transmitted to the second light receiving element 28 (Equation 5).
W 2 ″ = V 2 ″ −V 0 2 ″
Is calculated.

演算部１９″は、光源部１６の発光による光が第一の受光素子２７に伝播してきた受光量に対応する信号Ｗ１″、光源部１６の発光による光が第二の受光素子２８に伝播してきた受光量に対応する信号Ｗ２″にもとづいて、皮膚２５の個体差のばらつき補正を行って皮下脂肪厚Ｘ″を演算する。 The calculation unit 19 ″ transmits a signal W 1 ″ corresponding to the amount of light received by the light emitted from the light source unit 16 to the first light receiving element 27, and the light emitted from the light source unit 16 propagates to the second light receiving element 28. Based on the signal W 2 ″ corresponding to the received light amount, the variation in individual differences of the skin 25 is corrected and the subcutaneous fat thickness X ″ is calculated.

表示部２０は、演算された皮下脂肪厚Ｘ″を表示する。   The display unit 20 displays the calculated subcutaneous fat thickness X ″.

以上においては、本実施の形態の光式脂肪厚計の構成および動作について説明した。   The configuration and operation of the optical fat thickness meter according to the present embodiment has been described above.

このように、前述した実施の形態２の場合と同様、光源部１６から生体内を伝播して第一の受光素子２７、第二の受光素子２８で受光された光の受光量に対応する２つの信号の比から皮下脂肪厚を算出することで、皮膚２５の色および厚みの個体差ばらつきが補正された皮下脂肪厚計測が可能となる。   Thus, as in the case of the second embodiment described above, 2 corresponding to the amount of light received by the first light receiving element 27 and the second light receiving element 28 from the light source unit 16 through the living body. By calculating the subcutaneous fat thickness from the ratio of the two signals, it is possible to measure the subcutaneous fat thickness in which the individual differences in the color and thickness of the skin 25 are corrected.

また、演算部１９″が、押力検知部１８によって検知された押力による生体表面１３の変形を考慮して、突起形状２９によって圧縮されて測定された皮下脂肪厚を本来の皮下脂肪厚に換算するため、より厚い皮下脂肪厚も計測することが可能となる。なお、このような換算は、押力によって圧縮された皮下脂肪厚と圧縮されない本来の皮下脂肪厚との間の関係を超音波診断装置などで調べることによってあらかじめ導出しておいた換算式を利用して行えばよい。   In addition, the calculation unit 19 ″ considers the deformation of the living body surface 13 due to the pressing force detected by the pressing force detection unit 18, and changes the subcutaneous fat thickness measured by being compressed by the protrusion shape 29 to the original subcutaneous fat thickness. Because of this conversion, it is possible to measure even thicker subcutaneous fat thickness, which exceeds the relationship between the subcutaneous fat thickness compressed by the pressing force and the original uncompressed subcutaneous fat thickness. What is necessary is just to use the conversion formula derived | led-out previously by investigating with a sonic diagnostic apparatus.

（Ａ）なお、本発明の突起部は、本発明の実施の形態の突起部１１７を有する光式脂肪厚計の模式的な断面部分図である図８に示されているような、測定面１１４の外周に沿って設けられた、突起形状２９に向かって曲がり具合が緩やかに変化する曲面部分Ｓをその内側に有する突起部１１７であってもよい。   (A) The protrusion of the present invention is a measurement surface as shown in FIG. 8 which is a schematic sectional partial view of an optical fat thickness meter having the protrusion 117 of the embodiment of the present invention. The protrusion 117 may be provided along the outer periphery of the protrusion 114 and has a curved surface portion S on its inner side where the degree of bending gradually changes toward the protrusion shape 29.

曲面部分Ｓの曲がり具合が緩やかに変化するため、突起部１１７が皮膚２５に押し当てられる際に使用者が感じる違和感は低減され、曲面部分Ｓに埃などが溜まることもほとんどない。   Since the degree of bending of the curved surface portion S changes gently, the feeling of strangeness felt by the user when the projection 117 is pressed against the skin 25 is reduced, and dust or the like hardly accumulates on the curved surface portion S.

もちろん、曲面部分Ｓが突起部１１７の外側ではなく突起部１１７の内側に設けられているため、太陽や照明光からの外乱光の受光は前述した実施の形態における場合と同様に抑制される。   Of course, since the curved surface portion S is provided not inside the protrusion 117 but inside the protrusion 117, the reception of disturbance light from the sun or illumination light is suppressed in the same manner as in the above-described embodiment.

なお、突起部１１７は、本発明の突起部に対応する。   Note that the protrusion 117 corresponds to the protrusion of the present invention.

（Ｂ）また、本発明の突起部は、本発明の実施の形態の突起部２１７を有する光式脂肪厚計の模式的な下平面図である図９に示されているように、測定面２１４の外周に沿ってではなく、測定面２１４の外周とはある程度の距離をおいて設けられていてもよい。   (B) Further, the protrusion of the present invention has a measurement surface as shown in FIG. 9 which is a schematic bottom plan view of an optical fat thickness meter having the protrusion 217 of the embodiment of the present invention. Instead of along the outer periphery of 214, it may be provided at a certain distance from the outer periphery of measurement surface 214.

突起部２１７は、光源部１６および受光部１５を取り囲むように設けられているため、太陽や照明光からの外乱光の受光は前述した実施の形態における場合と同様に抑制され、局所皮下脂肪厚などの測定精度をより向上させることができる。   Since the protruding portion 217 is provided so as to surround the light source portion 16 and the light receiving portion 15, the reception of disturbance light from the sun or illumination light is suppressed as in the above-described embodiment, and the local subcutaneous fat thickness is reduced. The measurement accuracy can be further improved.

なお、突起部２１７は、本発明の突起部に対応する。   Note that the protrusion 217 corresponds to the protrusion of the present invention.

（Ｃ）また、本発明の突起部は、本発明の実施の形態の突起部３１７ａ、３１７ｂ、３１７ｃ、３１７ｄを有する光式脂肪厚計の模式的な下平面図である図１０に示されているように、連続的にではなく間欠的に設けられていてもよい。   (C) Moreover, the protrusion part of this invention is shown by FIG. 10 which is a typical bottom plan view of the optical fat thickness meter which has the protrusion parts 317a, 317b, 317c, 317d of embodiment of this invention. As shown, it may be provided intermittently rather than continuously.

突起部３１７ａ、３１７ｂ、３１７ｃ、３１７ｄは、光源部１６および受光部１５を実質的に取り囲むように設けられているため、太陽や照明光からの外乱光の受光は前述した実施の形態における場合と同様に抑制され、局所皮下脂肪厚などの測定精度をより向上させることができる。   Since the protrusions 317a, 317b, 317c, and 317d are provided so as to substantially surround the light source unit 16 and the light receiving unit 15, the reception of disturbance light from the sun and illumination light is the same as in the above-described embodiment. Similarly, measurement accuracy such as local subcutaneous fat thickness can be further improved.

もちろん、突起部間の間欠の大きさが大きすぎると、外乱光の受光を抑制しにくくなるが、そのような間欠の大きさが適切であると、外乱光の受光を抑制しつつ、使用者が感じる違和感を低減することができる。   Of course, when the intermittent size between the protrusions is too large, it becomes difficult to suppress the reception of disturbance light. However, when the intermittent size is appropriate, the user is prevented from receiving disturbance light. Can reduce the sense of incongruity.

なお、突起部３１７ａ、３１７ｂ、３１７ｃ、３１７ｄは、本発明の突起部に対応する。   Note that the protrusions 317a, 317b, 317c, and 317d correspond to the protrusions of the present invention.

以上においては、本発明の実施の形態について詳細に説明した。   The embodiments of the present invention have been described in detail above.

このように、本発明にかかる光式生体情報測定装置は、たとえば、周囲に突起部を有する測定面を生体に押し当てて、突起部直下の皮下脂肪層を圧縮し、外乱光を減少させることができる。   As described above, the optical biological information measuring device according to the present invention reduces the disturbance light by compressing the subcutaneous fat layer immediately below the protrusion, for example, by pressing the measurement surface having the protrusion around the living body. Can do.

そのため、本発明にかかる光式生体情報測定装置は、局所脂肪厚等の局所生体情報を測定する光式生体情報測定装置として有用である。   Therefore, the optical biological information measuring device according to the present invention is useful as an optical biological information measuring device that measures local biological information such as local fat thickness.

また、本発明にかかる光式生体情報測定装置は、光式局所組織酸素濃度計等の用途にも応用できる。   The optical biological information measuring device according to the present invention can also be applied to uses such as an optical local tissue oximeter.

なお、本発明のプログラムは、上述した本発明の生体情報演算方法の全部または一部のステップの動作をコンピュータにより実行させるためのプログラムであって、コンピュータと協働して動作するプログラムである。   The program of the present invention is a program for causing a computer to execute the operation of all or part of the above-described biological information calculation method of the present invention, and is a program that operates in cooperation with the computer.

また、本発明の記録媒体は、上述した本発明の生体情報演算方法の全部または一部のステップの全部または一部の動作をコンピュータにより実行させるためのプログラムを担持した記録媒体であり、コンピュータにより読み取り可能かつ、読み取られた前記プログラムが前記コンピュータと協動して前記動作を実行する記録媒体である。   The recording medium of the present invention is a recording medium carrying a program for causing a computer to execute all or part of the operations of all or part of the above-described biological information calculation method of the present invention. The recording medium is readable and the read program executes the operation in cooperation with the computer.

なお、本発明の上記「一部のステップ」とは、それらの複数のステップの内の、一つまたは幾つかのステップを意味する。   The “partial steps” of the present invention means one or several steps out of the plurality of steps.

また、本発明の上記「ステップの動作」とは、前記ステップの全部または一部の動作を意味する。   The “step operation” of the present invention means the operation of all or part of the step.

また、本発明のプログラムの一利用形態は、コンピュータにより読み取り可能な記録媒体に記録され、コンピュータと協働して動作する態様であっても良い。   Further, one usage form of the program of the present invention may be an aspect in which the program is recorded on a computer-readable recording medium and operates in cooperation with the computer.

また、本発明のプログラムの一利用形態は、伝送媒体中を伝送し、コンピュータにより読みとられ、コンピュータと協働して動作する態様であっても良い。   Further, one usage form of the program of the present invention may be an aspect in which the program is transmitted through a transmission medium, read by a computer, and operated in cooperation with the computer.

また、記録媒体としては、ＲＯＭ等が含まれ、伝送媒体としては、インターネット等の伝送媒体、光・電波・音波等が含まれる。   The recording medium includes a ROM and the like, and the transmission medium includes a transmission medium such as the Internet, light, radio waves, sound waves, and the like.

また、上述した本発明のコンピュータは、ＣＰＵ等の純然たるハードウェアに限らず、ファームウェアや、ＯＳ、更に周辺機器を含むものであっても良い。   The computer of the present invention described above is not limited to pure hardware such as a CPU, and may include firmware, an OS, and peripheral devices.

なお、以上説明した様に、本発明の構成は、ソフトウェア的に実現しても良いし、ハードウェア的に実現しても良い。   As described above, the configuration of the present invention may be realized by software or hardware.

本発明の生体情報演算装置は、局所皮下脂肪厚などの測定精度をより向上させることができ、有用である。 Biometric information computing equipment of the present invention, it is possible to further improve the measurement accuracy such as local subcutaneous fat thickness, it is useful.

本発明の実施の形態１の光式脂肪厚計の模式的な断面図Schematic sectional view of the optical fat thickness meter according to the first embodiment of the present invention. 本発明の実施の形態１の光式脂肪厚計の外観図1 is an external view of the optical fat thickness meter according to Embodiment 1 of the present invention. 本発明の実施の形態２の光式脂肪厚計の模式的な断面図Schematic sectional view of the optical fat thickness meter according to the second embodiment of the present invention. 本発明の実施の形態２の光式脂肪厚計の外観図External view of optical fat thickness meter according to Embodiment 2 of the present invention 本発明の実施の形態３の光式脂肪厚計の模式的な断面図（その１）Schematic sectional view of an optical fat thickness meter according to Embodiment 3 of the present invention (No. 1) 本発明の実施の形態３の光式脂肪厚計の模式的な断面図（その２）Schematic sectional view of an optical fat thickness meter according to Embodiment 3 of the present invention (No. 2) 本発明の実施の形態３の光式脂肪厚計の外観図External view of optical fat thickness meter according to Embodiment 3 of the present invention 本発明の実施の形態の突起部１１７を有する光式脂肪厚計の模式的な断面部分図Schematic sectional partial view of an optical fat thickness meter having a protrusion 117 according to an embodiment of the present invention 本発明の実施の形態の突起部２１７を有する光式脂肪厚計の模式的な下平面図Schematic lower plan view of an optical fat thickness meter having a protrusion 217 according to an embodiment of the present invention 本発明の実施の形態の突起部３１７ａ、３１７ｂ、３１７ｃ、３１７ｄを有する光式脂肪厚計の模式的な下平面図Schematic lower plan view of an optical fat thickness meter having protrusions 317a, 317b, 317c, and 317d according to an embodiment of the present invention 従来の光式脂肪厚計の模式的な断面図Schematic cross-sectional view of a conventional optical fat thickness gauge

符号の説明Explanation of symbols

１ ＣＰＵ
２ 駆動回路
３ 送光素子
４ 皮下脂肪
５ 受光素子
６ 受光素子
７ 受光素子
８ アナログスイッチ
９ ＡＭＰ
１０ 測定部位選択入力部
１１ 外乱光
１３ 生体表面
１４、１４′、１４″ 測定面
１５ 受光部
１６ 光源部
１７、１７″ 突起部
１８ 押力検知部
１９、１９′、１９″ 演算部
２０ 表示部
２１ 通信部
２２ 入力部
２３ 音発生部
２４ 振動発生部
２５ 皮膚
２６ 筋肉
２７ 第一の受光素子
２８ 第二の受光素子
２９ 突起形状
1 CPU
2 Drive circuit 3 Light transmitting element 4 Subcutaneous fat 5 Light receiving element 6 Light receiving element 7 Light receiving element 8 Analog switch 9 AMP
DESCRIPTION OF SYMBOLS 10 Measurement site | part selection input part 11 Disturbing light 13 Living body surface 14, 14 ', 14 "Measurement surface 15 Light-receiving part 16 Light source part 17, 17" Protrusion part 18 Pushing force detection part 19, 19', 19 "Calculation part 20 Display part DESCRIPTION OF SYMBOLS 21 Communication part 22 Input part 23 Sound generation part 24 Vibration generation part 25 Skin 26 Muscle 27 First light receiving element 28 Second light receiving element 29 Projection shape

Claims (9)

測定面に設けられた、生体に対して光を発光する光源と、
前記測定面に設けられた、前記生体を通過した光を受光する受光器と、
前記生体の表面に押し当てる際の押圧方向に突出するとともに、前記光源および前記受光器を実質的に取り囲むように設けられた突起部と、
前記受光された光の量に基づいて、前記生体に関する情報を演算する生体情報演算部と、
前記測定面が前記生体の表面に押し当てられている押力を測定する測定面押力測定部と、
前記測定された押力の大きさが規定値を越えているか否かを判断する判断部とを備え、
前記生体情報演算部は、前記測定された押力の大きさが規定値を越えていると判断された場合に、前記生体に関する情報を演算する、生体情報演算装置。 A light source provided on the measurement surface for emitting light to the living body;
A light receiver provided on the measurement surface for receiving light that has passed through the living body;
A protrusion that protrudes in the pressing direction when pressed against the surface of the living body and that substantially surrounds the light source and the light receiver;
A biological information calculation unit that calculates information about the living body based on the amount of the received light ;
A measurement surface pressing force measurement unit that measures the pressing force with which the measurement surface is pressed against the surface of the living body;
Bei example a determination unit that the magnitude of the measured pushing force is determined whether it exceeds a specified value,
The biological information calculation device is configured to calculate information related to the living body when it is determined that the magnitude of the measured pressing force exceeds a specified value . 前記受光器は、前記光が発光されている状態で前記光を受光するとともに、前記光が発光されていない状態でも前記光を受光し、
前記生体情報演算部は、前記光が発光されていない状態で受光された前記光の量と前記光が発光されている状態で受光された前記光の量とに基づいて、前記生体に関する情報を演算する請求項１記載の、生体情報演算装置。 The light receiver receives the light in a state where the light is emitted, and receives the light even in a state where the light is not emitted,
The biological information calculation unit obtains information on the living body based on the amount of the light received in a state where the light is not emitted and the amount of the light received in a state where the light is emitted. The biological information calculation device according to claim 1, wherein the calculation is performed. 前記突起部は、前記測定面の外周に沿って連続的に設けられている請求項１記載の、生体情報演算装置。   The biological information arithmetic device according to claim 1, wherein the protrusion is provided continuously along the outer periphery of the measurement surface. 前記測定面の外周は、実質的に円周であり、
前記受光器は、前記円周の実質的な中央に配置されている請求項３記載の、生体情報演算装置。 The outer circumference of the measurement surface is substantially a circumference,
The biological information arithmetic device according to claim 3, wherein the light receiver is disposed at a substantial center of the circumference. 前記突起部に架橋するように設けられた凸部をさらに備え、
前記光源は、前記凸部に配置されており、
前記受光器は、前記凸部に配置されている請求項１記載の、生体情報演算装置。 Further comprising a convex portion provided so as to crosslink the protruding portion,
The light source is disposed on the convex portion,
The biological information calculation device according to claim 1, wherein the light receiver is disposed on the convex portion. 前記測定面の外周は、実質的に円周であり、
前記凸部は、前記円周の実質的な中央を横切るように設けられている請求項５記載の、生体情報演算装置。 The outer circumference of the measurement surface is substantially a circumference,
The biological information arithmetic device according to claim 5, wherein the convex portion is provided so as to cross a substantial center of the circumference. 前記凸部が前記生体の表面に押し当てられている押力を測定する凸部押力測定部をさらに備え、
前記生体情報演算部は、前記測定された押力による前記生体の表面の変形を考慮して、前記生体に関する情報を演算する請求項５記載の、生体情報演算装置。 A convex portion pressing force measuring unit that measures the pressing force with which the convex portion is pressed against the surface of the living body;
The biological information calculation device according to claim 5, wherein the biological information calculation unit calculates information related to the living body in consideration of deformation of the surface of the living body due to the measured pressing force. 前記受光器は、前記光を受光する第一の受光素子と前記光を受光する第二の受光素子とを有し、
前記生体情報演算部は、前記第一の受光素子によって受光された光の量と前記第二の受光素子によって受光された光の量とに基づいて、前記生体に関する情報を演算する請求項１記載の、生体情報演算装置。 The light receiver includes a first light receiving element that receives the light and a second light receiving element that receives the light,
The biological information calculation unit calculates information related to the living body based on the amount of light received by the first light receiving element and the amount of light received by the second light receiving element. The biological information calculation device. 前記光源は、前記光を発光する発光素子を有し、
前記発光素子と前記第一の受光素子との間の距離は、実質的に１５ｍｍ以上２５ｍｍ以下であり、
前記発光素子と前記第二の受光素子との間の距離は、実質的に３５ｍｍ以上５０ｍｍ以下である請求項８記載の、生体情報演算装置。 The light source has a light emitting element that emits the light,
The distance between the light emitting element and the first light receiving element is substantially 15 mm or more and 25 mm or less,
The biological information calculation device according to claim 8, wherein a distance between the light emitting element and the second light receiving element is substantially not less than 35 mm and not more than 50 mm .
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