JPH08308813A - Optical system of probe for body fat measuring device - Google Patents
Optical system of probe for body fat measuring deviceInfo
- Publication number
- JPH08308813A JPH08308813A JP7117013A JP11701395A JPH08308813A JP H08308813 A JPH08308813 A JP H08308813A JP 7117013 A JP7117013 A JP 7117013A JP 11701395 A JP11701395 A JP 11701395A JP H08308813 A JPH08308813 A JP H08308813A
- Authority
- JP
- Japan
- Prior art keywords
- light
- diffuser
- optical
- optical system
- light emitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- A61B5/4872—Body fat
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、近赤外線の透過・吸収
を利用した体脂肪測定装置用プローブの光学系に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical system of a probe for a body fat measuring device utilizing transmission / absorption of near infrared rays.
【０００２】[0002]
【従来の技術】従来の体脂肪測定装置用プローブの光学
系は、図７に示すように、体脂肪測定装置本体に接続さ
れたケーブル１はプローブ２の後端より引き込まれる。
ケーブル１に内包されたリード線３は配線基板４に接続
される。この配線基板には複数個の発光素子５と１つの
受光素子６が設置されている。複数個の発光素子５の前
方にはそれぞれ異なる波長の近赤外光を透過させるフィ
ルタ７が各発光素子に対応して配置され、さらにその前
方にはフィルタを通った光を拡散するためのデイフュー
ザ８が配置されている。2. Description of the Related Art In a conventional optical system for a body fat measuring device probe, as shown in FIG. 7, a cable 1 connected to a body fat measuring device main body is pulled in from a rear end of a probe 2.
The lead wire 3 included in the cable 1 is connected to the wiring board 4. A plurality of light emitting elements 5 and one light receiving element 6 are installed on this wiring board. A filter 7 for transmitting near-infrared light of different wavelengths is arranged in front of the plurality of light emitting elements 5 corresponding to each light emitting element, and further in front of the diffuser for diffusing light passing through the filters. 8 are arranged.
【０００３】体脂肪測定装置本体よりケーブル１を介し
て送られる駆動信号により複数個の発光素子５が順次に
時系列的に１つずつ近赤外光を発光する。フィルタ７は
その近赤外光から所要の波長の近赤外光を透過させ、デ
イフューザ８はその近赤外光を拡散して光放射端に接触
された被検体である人体内へ放射する。その放射光は、
人体組織に存在する水分や脂肪等により吸収、拡散また
は反射され、一部の光はプローブ側へ戻って来てプロー
ブ先端の開口部に設けられた可視光除去フィルタ１０を
通って近赤外光のみを通過させ、それから、デイフュー
ザ８の中央空洞を通って受光素子６に入射される。受光
素子６で検出された信号はケーブル１を通して体脂肪測
定装置本体へ送られて信号処理され、その被検体の体脂
肪測定値を算出して表示装置またはプリンタに出力す
る。A plurality of light emitting elements 5 sequentially emit near infrared light one by one in a time series by a drive signal sent from the body fat measuring apparatus main body through the cable 1. The filter 7 transmits near-infrared light having a required wavelength from the near-infrared light, and the diffuser 8 diffuses the near-infrared light and radiates the near-infrared light into the human body which is the subject in contact with the light emitting end. The emitted light is
Near-infrared light is absorbed, diffused or reflected by water or fat existing in human body tissue, and part of the light returns to the probe side and passes through the visible light removal filter 10 provided in the opening at the tip of the probe. Light, and then enters the light receiving element 6 through the central cavity of the diffuser 8. The signal detected by the light receiving element 6 is sent to the body fat measuring apparatus main body through the cable 1 and subjected to signal processing, and the body fat measurement value of the subject is calculated and output to a display device or a printer.
【０００４】かかる従来装置においては、各発光素子は
時系列的に順番に発光されるため、ある瞬間において
は、円筒形のデイフューザ８の環状入射面の一か所より
光が入射されるだけであるから、そのデイフューザ内に
おいて中心軸の反対側まで光を十分に拡散することがで
きないため、デイフューザの放射面においては光強度の
不均一な光が放射される。その結果、プローブの中心軸
に対する回転方向に対するプローブの角度位置の違いに
より測定誤差を生じる。一方、デイフューザを軸方向に
長く形成すれば、光の拡散は改善されるが、光の減衰が
大きくなり十分な大きさの検出信号を得ることができな
くなる。In such a conventional device, since each light emitting element emits light sequentially in time series, at a certain moment, the light is incident only from one place on the annular incident surface of the cylindrical diffuser 8. Therefore, since the light cannot be sufficiently diffused to the opposite side of the central axis in the diffuser, light having uneven light intensity is emitted on the emission surface of the diffuser. As a result, a measurement error occurs due to the difference in the angular position of the probe with respect to the rotation direction with respect to the central axis of the probe. On the other hand, if the diffuser is formed to be long in the axial direction, the diffusion of light is improved, but the attenuation of light is increased, and it becomes impossible to obtain a sufficiently large detection signal.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は、デイ
フューザ内での光の減衰を極力小さくし、デイフューザ
の放射面から均一な光を放射して誤差の少ない測定値を
得るようにした体脂肪測定装置用プローブの光学系を提
供することにある。SUMMARY OF THE INVENTION An object of the present invention is to reduce the attenuation of light in the diffuser as much as possible, and to emit a uniform light from the emission surface of the diffuser to obtain a measurement value with a small error. An object is to provide an optical system of a probe for a fat measuring device.
【０００６】[0006]
【課題を解決するための手段】本発明による体脂肪測定
装置用プローブの光学系によれば、複数個の発光素子か
ら順番に時系列的に発光された近赤外光をそれぞれ相互
に異なる波長の近赤外光を通すフィルタに通し、それら
各フィルタを通った近赤外光は一端から受けて複数束に
分岐された放射端から放射する複数個の光ファイバに入
射され、それら各光ファイバの複数束の放射端を光デイ
フューザの入射面上に分散して配置して、発光素子のお
のおのから放射された光が光デイフューザの放射面全体
に渡って実質的に均一に放射し、その光デイフューザの
放射面より放射され被検体を通って回収された光を検出
器で検出するようにしている。According to the optical system of the probe for body fat measuring apparatus according to the present invention, the near-infrared light sequentially emitted from a plurality of light emitting elements in time series have different wavelengths. The near-infrared light that has passed through each of the near-infrared light is received from one end and is incident on a plurality of optical fibers that are radiated from the radiation end that is branched into a plurality of bundles. The light emitting ends of the plurality of bundles are distributed and arranged on the incident surface of the light diffuser, and the light emitted from each of the light emitting elements is emitted substantially uniformly over the entire emitting surface of the light diffuser. Light emitted from the emission surface of the diffuser and collected through the subject is detected by the detector.
【０００７】[0007]
【実施例】図２は、本発明に係わる体脂肪測定装置の外
観を示す斜視図である。同図において、１５は体脂肪測
定装置の本体であり、入力キー１６、表示装置１７およ
びプリンタ１８を備えている。ケーブル１は本体１５の
側部から引き出され、その先端は被検体に圧接するプロ
ーブ２に接続されている。EXAMPLE FIG. 2 is a perspective view showing the appearance of a body fat measuring device according to the present invention. In the figure, reference numeral 15 is a main body of the body fat measurement device, which includes an input key 16, a display device 17, and a printer 18. The cable 1 is pulled out from the side portion of the main body 15, and the tip thereof is connected to the probe 2 that is in pressure contact with the subject.
【０００８】図３は、本発明の概略的回路構成を示す図
である。同図において、体脂肪測定装置の全体の動作は
ＣＰＵ２０によって制御されている。プローブ２内の発
光素子５は６個の発光ダイオード（ＬＥＤ）が用いら
れ、それらＬＥＤ５は１つずつ順番に時系列的に発光す
るように制御される。デコーダ２１は、ＣＰＵ２０から
のＬＥＤ制御信号を復号してＬＥＤ駆動回路２２を制御
する。ＬＥＤ駆動回路は６個のＬＥＤ５に１つずつ順番
に駆動信号を送ってそれらＬＥＤを発光させる。６個の
ＬＥＤ５から放射された近赤外光は、それぞれ異なる波
長の近赤外光を通すフィルタを通過させ、プローブ２か
ら外部へ時系列的に波長が変化する近赤外光として外部
へ放射する。各フィルタを通して取り出される６個の波
長は、例えば、８１０ｎｍ、９１０ｎｍ、９２８ｎｍ、
９７０ｎｍ、１０２３ｎｍおよび１０３７ｎｍである。FIG. 3 is a diagram showing a schematic circuit configuration of the present invention. In the figure, the overall operation of the body fat measurement device is controlled by the CPU 20. Six light emitting diodes (LEDs) are used as the light emitting elements 5 in the probe 2, and the LEDs 5 are controlled so as to sequentially emit light one by one in time series. The decoder 21 decodes the LED control signal from the CPU 20 and controls the LED drive circuit 22. The LED drive circuit sequentially sends a drive signal to each of the six LEDs 5 to cause the LEDs to emit light. The near-infrared light emitted from the six LEDs 5 passes through filters that pass near-infrared light of different wavelengths, and is emitted outside from the probe 2 as near-infrared light whose wavelength changes in time series. To do. The six wavelengths extracted through each filter are, for example, 810 nm, 910 nm, 928 nm,
970 nm, 1023 nm and 1037 nm.
【０００９】プローブ２から放射された光は被検体に入
射され、その被検体から戻ってくる時系列的に波長の変
化する光は、受光素子６で検出され、増幅器２４で必要
な大きさに増幅されて、ケーブル１を通して本体１５へ
送られる。本体１５では、増幅回路２５でさらに増幅し
た後、Ａ／Ｄ変換器２６でＡ／Ｄ変換して、ＣＰＵ２０
へ伝送する。ＣＰＵ２０では、Ａ／Ｄ変換器２６からの
検出信号を所定のプログラムに従って分析して被検体の
体脂肪を計算し、その計算結果をインタフェイス２７を
介して表示装置２８、プリンタ２９または外部出力端子
に出力する。The light emitted from the probe 2 is incident on the subject, and the light returning from the subject, the wavelength of which changes in a time series, is detected by the light receiving element 6 and is made to have a required size by the amplifier 24. It is amplified and sent to the main body 15 through the cable 1. In the main body 15, after further amplification by the amplifier circuit 25, A / D conversion is performed by the A / D converter 26, and the CPU 20
Transmit to. In the CPU 20, the detection signal from the A / D converter 26 is analyzed according to a predetermined program to calculate the body fat of the subject, and the calculation result is displayed on the display device 28, the printer 29 or an external output terminal via the interface 27. Output to.
【００１０】次に、プローブ２の構成について説明す
る。本体１５から引き出されたケーブル１はプローブ２
の後端より挿入され、取り付け具３１にてプローブにし
っかりと固定される。ケーブル１内のリード線３は配線
基板４に接続される。この配線基板４上には、各リード
線に接続された６個のＬＥＤ５が設置されている。各Ｌ
ＥＤ５の右方前方にはそれぞれ異なる波長の光を通すフ
ィルタ７が各ＬＥＤに対応して設置されている。そし
て、それらフィルタ７の右方前方にはそれぞれ光ファイ
バ３３の受光端が固定されている。各光ファイバ３３
は、この実施例では、４束に分岐されて、各分岐束の出
射端はそれぞれ等間隔に分布して第１のデイフューザ８
の入射端に対向して固定される。Next, the structure of the probe 2 will be described. The cable 1 pulled out from the main body 15 is a probe 2
It is inserted from the rear end and is firmly fixed to the probe by the attachment 31. The lead wire 3 in the cable 1 is connected to the wiring board 4. Six LEDs 5 connected to each lead wire are installed on the wiring board 4. Each L
A filter 7 that allows light of different wavelengths to pass through is provided in front of the ED 5 in correspondence with each LED. The light receiving ends of the optical fibers 33 are fixed to the right front of the filters 7. Each optical fiber 33
In this embodiment, the first diffuser 8 is divided into four bundles, and the output ends of the respective bundles are distributed at equal intervals.
It is fixed so as to face the entrance end of.
【００１１】即ち、６個の光ファイバ３３ａ−３３ｆの
入射端は、図４に示すように、６個のＬＥＤにそれぞれ
対応して配置された６個のフィルタ７にそれぞれ対向し
て設置される。一方、６個の光ファイバ３３の４分岐さ
れた放射端、例えば光ファイバ３３ａの４分岐放射端３
３ａａ−３３ａｄは、図５に示すように、円筒形の第１
のデイフューザ８の環状入射端に等間隔に配置されるよ
うに固定される。他の光ファイバ３３ｂ−３３ｆも同様
に図４と図５に示すように等間隔に配置される。That is, as shown in FIG. 4, the incident ends of the six optical fibers 33a-33f are installed so as to face the six filters 7 respectively corresponding to the six LEDs. . On the other hand, the four branched radiation ends of the six optical fibers 33, for example, the four branched radiation ends 3 of the optical fiber 33a.
3aa-33ad has a cylindrical first shape as shown in FIG.
Of the diffuser 8 are fixed so as to be arranged at equal intervals. Similarly, the other optical fibers 33b to 33f are also arranged at equal intervals as shown in FIGS.
【００１２】第１のデイフューザ８の入射端と放射端の
双方の面には光拡散を向上するためにサンドブラスト処
理がされている。第１のデイフューザ８の放射端には光
の分散をより効果的にするために乳濁状の半透明の物質
で形成された偏平な第２のデイフューザ３５が設置され
る。この第２のデイフューザの入射面は光の拡散を良く
するためにサンドブラスト処理がされているが、その放
射面は人体等の被検体に圧接されるために汚れの付着を
防止するべくサンドブラスト処理を施すことなく平滑な
面となっている。The surfaces of both the incident end and the emitting end of the first diffuser 8 are sandblasted in order to improve light diffusion. At the radiation end of the first diffuser 8, a flat second diffuser 35 made of an emulsified semitransparent material is installed in order to make light dispersion more effective. The incident surface of the second diffuser is sandblasted in order to improve the diffusion of light, but its emission surface is pressed against an object such as a human body and therefore sandblasted to prevent the attachment of dirt. It is a smooth surface without applying.
【００１３】プローブ２を光放射面を正面から見ると図
６のようになる。環状の第２のデイフューザ３５の光放
射端は１つのＬＥＤから放射された光が、光ファイバ３
３で４カ所に等間隔に分散して第１のデイフューザ８に
入射され、この第１のデイフューザ８で分散れて、さら
に第２のデイフューザで分散されるので、図６に示す第
２のデイフューザ３５の環状の放射面全体に渡り均質な
強度の光が時系列的に波長が変化する光として放射され
る。FIG. 6 is a front view of the light emitting surface of the probe 2. The light emitting end of the annular second diffuser 35 allows the light emitted from one LED to pass through the optical fiber 3
Since the light is incident on the first diffuser 8 at three equal intervals at four locations, is dispersed by the first diffuser 8, and is further dispersed by the second diffuser, the second diffuser shown in FIG. Light having a uniform intensity is radiated as light whose wavelength changes in time series over the entire annular emission surface of 35.
【００１４】第２のデイフューザ３５から被検体内に放
射された時系列的に波長が変化する光はその被検体内で
反射・散乱され可視光カットフィルタ１０を通して受光
素子６へ入射される。受光素子６で検出された信号は、
リード線３ａ、配線基板４およびケーブル１を通して体
脂肪測定措置本体１５へ送られる。受光素子６は被検体
からの近赤外線を広角度で極力多く受光できるように、
なるべくプローブ先端部の近傍に設置される。The light whose wavelength changes in time series emitted from the second diffuser 35 into the subject is reflected and scattered in the subject and is incident on the light receiving element 6 through the visible light cut filter 10. The signal detected by the light receiving element 6 is
It is sent to the body fat measurement device main body 15 through the lead wire 3 a, the wiring board 4, and the cable 1. The light-receiving element 6 is designed to receive as much near-infrared light from the subject as possible over a wide angle.
It is installed as close to the probe tip as possible.
【００１５】なお、光ファイバの分岐数は必要に応じて
適宜変更することができ、特にその分岐数を多くすれば
するほど光の分散効率を高めることができる。The number of branches of the optical fiber can be changed as needed, and in particular, the greater the number of branches, the higher the light dispersion efficiency.
【００１６】[0016]
【発明の効果】以上説明したように、本発明の体脂肪測
定装置用プローブの光学系によれば、各ＬＥＤから放射
された光は、光ファイバで複数束に分岐されてデイフュ
ーザの入射端に均等に分散されて入射されるから、その
デイフューザ内で全体に平均して分散されることがで
き、従って、そのデイフューザの出射面全体から均一な
強度をもった光として放射されることになる。その結
果、プローブの回転方向による放射光の強度差がないの
で、測定誤差が少なくなる。しかも、デイフューザに入
射される前に光ファイバで複数束に分散してデイフュー
ザの入射面に等間隔に分散して入射するので、デイフュ
ーザの軸方向の長さを大きく取る必要がないので、光の
減衰の問題が解消され、しかもプローブを小型化するこ
とができる。As described above, according to the optical system of the probe for body fat measuring apparatus of the present invention, the light emitted from each LED is branched into a plurality of bundles by the optical fiber and is incident on the incident end of the diffuser. Since the light is evenly dispersed and incident, the light can be dispersed evenly in the entire diffuser, and therefore, the light having uniform intensity is emitted from the entire exit surface of the diffuser. As a result, since there is no difference in the intensity of the emitted light depending on the rotation direction of the probe, the measurement error is reduced. Moreover, since it is dispersed into a plurality of bundles by the optical fiber before being incident on the diffuser and is dispersed and incident on the incident surface of the diffuser at equal intervals, it is not necessary to take a large axial length of the diffuser. The problem of attenuation is solved, and the probe can be downsized.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明に係わる体脂肪測定装置用プローブの構
成を示す縦断面図である。FIG. 1 is a vertical cross-sectional view showing the configuration of a probe for body fat measurement device according to the present invention.
【図２】本発明に係わる体脂肪測定装置の全体の外観を
示す斜視図である。FIG. 2 is a perspective view showing an external appearance of the whole body fat measurement device according to the present invention.
【図３】本発明に係わる体脂肪測定装置の全体の回路構
成図である。FIG. 3 is an overall circuit configuration diagram of the body fat measurement device according to the present invention.
【図４】図１のIV−IV線に沿った横断面図である。4 is a cross-sectional view taken along the line IV-IV in FIG.
【図５】図１のＶ−Ｖ線に沿った断面図である。5 is a cross-sectional view taken along line VV of FIG.
【図６】プローブの光放射方向から見た正面図である。FIG. 6 is a front view of the probe viewed from the light emitting direction.
【図７】従来の体脂肪測定装置用プローブの構成を示す
縦断面図である。FIG. 7 is a vertical cross-sectional view showing the configuration of a conventional probe for body fat measurement device.
２ プローブ ５ 発光素子（ＬＥＤ） ６ 受光素子 ７ フィルタ ８ 第１のデイフューザ １５ 体脂肪測定装置本体 ３３ 光ファイバ ３５ 第２のデイフューザ 2 probe 5 light emitting element (LED) 6 light receiving element 7 filter 8 first diffuser 15 body fat measuring device main body 33 optical fiber 35 second diffuser
Claims (6)
子と、 それら発光素子から発光された光を通して相互に異なる
波長の光を得る、それら発光素子にそれぞれ対応して配
置された複数個のフィルタと、 それらフィルタを通った光を一端から受けて複数束に分
岐された放射端から放射する、それら発光素子にそれぞ
れ対応して配置された複数個の光ファイバと、 入射面から入射された光を拡散して放射面から放射する
光デイフューザと、 前記発光素子のおのおのから放射された光が前記光デイ
フューザの前記放射面より該面の全体に渡って実質的に
均一な強度で放射されるように、前記各光ファイバの前
記複数束の放射端を前記光デイフューザの前記入射面に
分散して配置する手段と、 前記光デイフューザの放射面より放射され被検体を通っ
て回収された光を検出する検出器と、 を備えた体脂肪測定装置用プローブの光学系。1. A plurality of light emitting elements that sequentially emit light in time series, and a plurality of light emitting elements that are arranged in correspondence with the light emitting elements to obtain lights of different wavelengths through the light emitted from the light emitting elements. Filters, a plurality of optical fibers that receive the light that has passed through the filters from one end and emit the light from the emission end that is branched into multiple bundles, and the optical fibers that are arranged corresponding to the light emitting elements, and are incident from the incident surface. And a light diffuser that diffuses the emitted light and emits the light from the emission surface, and the light emitted from each of the light emitting elements is emitted from the emission surface of the light diffuser with substantially uniform intensity over the entire surface. So as to disperse the radiation ends of the plurality of bundles of each of the optical fibers on the incident surface of the optical diffuser, and to irradiate the subject to be radiated from the emission surface of the optical diffuser. The optical system of the body fat measurement device probe comprising a detector for detecting the collected light I.
光デイフューザの入射面にサンドブラスト処理を施した
前記光学系。2. The optical system according to claim 1, wherein the incident surface of the optical diffuser is sandblasted.
光デイフューザは、サンドブラスト処理がされた入射面
を有し、長手方向が光軸方向にある透明体からなる第１
のデイフューザと、該第１のデイフューザの放射面に対
向した入射面を有し、入射光を散乱させる材質からなる
第２のデイフューザと、を備えた前記光学系。3. The optical system according to claim 1, wherein the optical diffuser includes a transparent body having a sandblasted entrance surface and having a longitudinal direction in the optical axis direction.
And a second diffuser made of a material that scatters incident light, the optical system having an incident surface facing the radiation surface of the first diffuser.
第１のデイフューザの放射面と前記第２のデイフューザ
の入射面との少なくともいずれか一方の面にサンドブラ
スト処理を施した前記光学系。4. The optical system according to claim 3, wherein at least one of the emission surface of the first diffuser and the incident surface of the second diffuser is sandblasted.
デイフューザは、円筒形状に形成された前記光学系。5. The optical system according to claim 1, wherein the diffuser is formed in a cylindrical shape.
検出器は前記デイフューザの中心軸上でかつ先端部に配
置された前記光学系。6. The optical system according to claim 5, wherein the detector is arranged on the central axis of the diffuser and at the tip end portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11701395A JP3310493B2 (en) | 1995-05-16 | 1995-05-16 | Optical system of probe for body fat measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11701395A JP3310493B2 (en) | 1995-05-16 | 1995-05-16 | Optical system of probe for body fat measurement device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08308813A true JPH08308813A (en) | 1996-11-26 |
| JP3310493B2 JP3310493B2 (en) | 2002-08-05 |
Family
ID=14701298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11701395A Expired - Fee Related JP3310493B2 (en) | 1995-05-16 | 1995-05-16 | Optical system of probe for body fat measurement device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3310493B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8046056B2 (en) | 2006-08-31 | 2011-10-25 | Samsung Electronics Co., Ltd. | Body fat measurement apparatus and method of operating the apparatus |
| JP2019180682A (en) * | 2018-04-06 | 2019-10-24 | 株式会社小池メディカル | Probe for biological information measurement device and biological information measurement device |
-
1995
- 1995-05-16 JP JP11701395A patent/JP3310493B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8046056B2 (en) | 2006-08-31 | 2011-10-25 | Samsung Electronics Co., Ltd. | Body fat measurement apparatus and method of operating the apparatus |
| JP2019180682A (en) * | 2018-04-06 | 2019-10-24 | 株式会社小池メディカル | Probe for biological information measurement device and biological information measurement device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3310493B2 (en) | 2002-08-05 |
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