JP3536500B2 - Biological signal detection device - Google Patents
Biological signal detection deviceInfo
- Publication number
- JP3536500B2 JP3536500B2 JP00430996A JP430996A JP3536500B2 JP 3536500 B2 JP3536500 B2 JP 3536500B2 JP 00430996 A JP00430996 A JP 00430996A JP 430996 A JP430996 A JP 430996A JP 3536500 B2 JP3536500 B2 JP 3536500B2
- Authority
- JP
- Japan
- Prior art keywords
- biological signal
- signal detecting
- detecting means
- living body
- vibration transmitting
- 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.)
- Expired - Lifetime
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- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、椅子、ベッド、マ
ッサージ機等の人体を支える装置に配設され、心拍、体
動、血圧等の生体信号を非拘束で検出する生体信号検出
装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a biological signal detecting device which is provided in a device for supporting a human body such as a chair, a bed, a massager, etc., and which detects a biological signal such as heartbeat, body movement and blood pressure without restraint. Is.
【０００２】[0002]
【従来の技術】従来から生体に接触することなく非拘束
で心拍、体重、血圧等の人体の各種の生体信号を検出す
る手段として、圧電素子等の圧力センサーや、光ファイ
バーを利用したものが提案されている。ここで、光ファ
イバーを使用したものは一端を発光素子、他端を受光素
子に接続し、発光素子を発光させて光ファイバーに光を
透過させ、生体荷重により光ファイバーが撓むことが可
能な構造としたもので、椅子やベッドやマッサージ機等
の生体の荷重を受ける箇所に固定したものである。そし
て、生体の荷重がかかると光ファイバーによって発光部
から受光部へと導かれる光の量を、生体荷重の変動に伴
う光ファイバーの撓みによって変化させることで、荷重
変動を捕え、ここから生体信号を検出しようというもの
である。2. Description of the Related Art Conventionally, as a means for detecting various biological signals of the human body such as heartbeat, weight, and blood pressure without contacting the living body, there has been proposed a method using a pressure sensor such as a piezoelectric element or an optical fiber. Has been done. Here, one using an optical fiber has a structure in which one end is connected to a light emitting element and the other end is connected to a light receiving element so that the light emitting element emits light to transmit light to the optical fiber and the optical fiber can bend due to a living body load. It is fixed to a place such as a chair, bed, or massage machine that receives the load of the living body. Then, when the load of the living body is applied, the amount of light guided from the light emitting unit to the light receiving unit by the optical fiber is changed by the deflection of the optical fiber due to the change of the living body load, so that the load fluctuation is detected and the biological signal is detected from there. It is to try.
【０００３】図２、図３には上記光ファイバー８を使用
した生体信号検出手段３の一例として、荷重がかからな
い時には直線状を保ち、荷重がかかった時に撓む構造を
示している。すなわち、上面に凹凸部１６を備えた部材
１７ａと下面に凹凸部１６を備えた部材１７ｂとの間に
光ファイバー８を通し、部材１７ｂを部材１７ａから浮
かせておき、生体荷重がかかって部材１７ｂが下降した
際に光ファイバー８を撓ませるようになっている。2 and 3 show, as an example of the biological signal detecting means 3 using the above-mentioned optical fiber 8, a structure in which a linear shape is maintained when a load is not applied and the shape is bent when a load is applied. That is, the optical fiber 8 is passed between the member 17a having the concave-convex portion 16 on the upper surface and the member 17b having the concave-convex portion 16 on the lower surface, and the member 17b is floated from the member 17a. The optical fiber 8 is designed to bend when it descends.
【０００４】この光ファイバー８を使った生体信号検出
手段３は感度が大きいため、心拍による荷重の微小変動
を捕らえることも可能で、これにより心拍数を計測する
ことも提唱されている。しかし、心拍の微小な変動を精
度良く検出するには生体センサーの配設構造も重要な要
素である。生体の荷重変動を捕らえ易く、また、Ｓ／Ｎ
比の良い構造が必要である。Since the biological signal detecting means 3 using the optical fiber 8 has a high sensitivity, it is possible to catch a minute fluctuation of the load due to the heartbeat, and it is also proposed to measure the heartbeat rate by this. However, the arrangement structure of the biosensor is also an important element for accurately detecting minute fluctuations in the heartbeat. It is easy to capture the load fluctuation of the living body, and S / N
A structure with good ratio is required.
【０００５】図１３には上記生体信号検出手段３を椅子
９に装備した従来例を示している。椅子９は生体と接触
するクッション１０とクッション１０の下部に位置して
生体を支持するためのＳ字状をしたばね材よりなる弾性
体２′を備えており、弾性体２′は椅子本体で支えてあ
る。ここで椅子９に座った場合生体はＳ字状をしたばね
材よりなる弾性体２′により支持される。そして、従来
にあっては、生体信号検出手段３は上記クッション１０
と弾性体２′との間、つまり、生体を支持する部材であ
る弾性体２′の生体を支持する面側に配設してあり、生
体の荷重が直接生体信号検出手段３にかかる構造となっ
ている。この従来例においては、生体信号を検出するに
は生体の荷重が充分に生体信号検出手段３にかかる必要
があるため、この生体信号検出手段３はクッション１０
のほぼ中央に配設されている。FIG. 13 shows a conventional example in which the biological signal detecting means 3 is mounted on a chair 9. The chair 9 is provided with a cushion 10 that comes into contact with a living body and an elastic body 2 ′ that is located below the cushion 10 and is made of an S-shaped spring material for supporting the living body. The elastic body 2 ′ is a chair body. It is supported. When sitting on the chair 9, the living body is supported by the elastic body 2'made of an S-shaped spring material. In the conventional case, the biological signal detecting means 3 is the cushion 10 described above.
And the elastic body 2 ', that is, the elastic body 2'which is a member for supporting the living body is disposed on the side supporting the living body, and the load of the living body is directly applied to the biological signal detecting means 3. Has become. In this conventional example, since the load of the living body needs to be sufficiently applied to the living body signal detecting means 3 to detect the living body signal, the living body signal detecting means 3 includes the cushion 10
Is arranged almost in the center.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記の
従来例にあっては、座る位置や背もたれのリクライニン
グ状態、座る人の体型等によって荷重の位置が変動し、
必ずしも生体信号検出手段３に充分な荷重がかかるとは
かぎらず、生体信号が計測できない場合も生じるもので
ある。また、クッション１０のすぐ下にあるため、生体
信号検出手段３の高さが高いと、座った時にお尻に違和
感を感じリラックスして椅子９に座ることができないこ
とがあり、このため、生体信号検出手段３を違和を感じ
ないように薄く小さくしなければならなくなり、生体信
号検出手段３の制約が大きくなり、生体信号が正確に検
出出来ないことがあるという問題があった。However, in the above-mentioned conventional example, the position of the load varies depending on the sitting position, the reclining state of the backrest, the body shape of the sitting person, etc.
A sufficient load is not always applied to the biomedical signal detecting means 3, and the biomedical signal may not be measured. Further, since it is located just below the cushion 10, if the height of the biological signal detecting means 3 is high, the user may feel uncomfortable in the buttocks and cannot sit on the chair 9 in a relaxed manner. There is a problem that the signal detecting means 3 must be made thin and small so as not to feel uncomfortable, the restriction of the biological signal detecting means 3 becomes large, and the biological signal may not be accurately detected.
【０００７】本発明は上記の従来例の問題点に鑑みて発
明したものであって、座ったり、寝たりして生体を支持
させた時に違和感を感じることがなく、確実に生体信号
が検出できる生体信号検出装置を提供することを課題と
するものである。The present invention has been made in view of the above-mentioned problems of the prior art, and the living body signal can be reliably detected without feeling uncomfortable when the living body is supported by sitting or sleeping. An object of the present invention is to provide a biological signal detecting device.
【０００８】[0008]
【課題を解決するための手段】上記課題を解決するため
に本発明の生体信号検出装置は、生体１に接触するクッ
ション１０を支持して該クッション１０にかかる生体１
の荷重を支持するための弾性を有するＳ字状をしたばね
材６により構成された振動伝達手段２と、該振動伝達手
段２の生体１を支持する側と反対側に配置した生体１の
微小な動きを検出するための生体信号検出手段３と、生
体信号検出手段３の振動伝達手段２側と反対側に位置し
て生体信号検出手段３を支持する支持部４とで構成され
て成ることを特徴とするものである。このような構成を
採用することで、人が生体１を支持するための弾性を有
する振動伝達手段２に座ったり、寝たり、もたれ掛かっ
たりして弾性を有する振動伝達手段２に支持されると、
弾性を有する振動伝達手段２が撓み、生体信号検出手段
３に荷重がかかる。そして、心拍等による生体信号によ
る荷重の微小変動によって生体信号検出手段３への荷重
が微小変動し、この微小変動を検出して生体信号を検出
するものである。この場合、生体１を支持するための弾
性を有する振動伝達手段２の生体１を支持する側と反対
側に配置した生体の微小な動きを検出するための生体信
号検出手段３を配設してあるから、弾性を有する振動伝
達手段２のどの部分に座ったり、寝たり、もたれたりし
ても、弾性を有する振動伝達手段２が撓んで生体信号検
出手段３に荷重がかかり、確実に生体信号を検出するこ
とができることになる。そして、弾性を有する振動伝達
手段２の生体１を支持する側に生体信号検出手段３があ
る場合に比べて弾性を有する振動伝達手段２に生体１を
支持した際の違和感がないものである。In order to solve the above-mentioned problems, the biological signal detecting apparatus of the present invention is provided with a clicker that contacts the living body 1.
Living body 1 supporting the cushion 10 and resting on the cushion 10
S-shaped spring with elasticity to support the load of
A vibration transmitting means 2 composed of a material 6, a biological signal detecting means 3 for detecting a minute movement of the living body 1 arranged on the side opposite to the side of the vibration transmitting means 2 supporting the living body 1, and a biological signal It is characterized in that it is composed of a support portion 4 which is located on the side opposite to the vibration transmission means 2 side of the detection means 3 and which supports the biological signal detection means 3. By adopting such a configuration, when a person sits, sleeps, or leans on the elastic vibration transmitting means 2 for supporting the living body 1, the person is supported by the elastic vibration transmitting means 2. ,
The elastic vibration transmitting means 2 bends, and a load is applied to the biological signal detecting means 3. Then, the load on the biological signal detecting means 3 slightly changes due to a minute change in the load due to the biological signal due to a heartbeat or the like, and this minute change is detected to detect the biological signal. In this case, the biological signal detecting means 3 for detecting a minute movement of the living body arranged on the side opposite to the side supporting the living body 1 of the vibration transmitting means 2 having elasticity for supporting the living body 1 is provided. Therefore, no matter which part of the elastic vibration transmitting means 2 is seated, lying or leaning, the elastic vibration transmitting means 2 is bent and a load is applied to the biological signal detecting means 3, so that the biological signal can be reliably transmitted. Will be able to be detected. Further, compared to the case where the biological signal detecting means 3 is provided on the side of the elastic vibration transmitting means 2 supporting the living body 1, there is no sense of discomfort when the living body 1 is supported by the elastic vibration transmitting means 2.
【０００９】また、生体信号検出手段３が生体１を支持
するための弾性を有する振動伝達手段２の生体１を支持
する側と反対側である下面側の平面視におけるの端部に
配設されて成ることも好ましい。このような構成を採用
することで、いっそう弾性を有する振動伝達手段２に生
体１を支持した際に生体信号検出手段３による違和感が
ないものである。また、生体信号検出手段３の振動伝達
手段２側の面を半球状をした構成としたり、生体信号検
出手段３の振動伝達手段２側の中央部に突起７を設ける
構成とすることも好ましい。このような構成を採用する
ことで、生体信号検出手段３の荷重点に安定して荷重を
かけることができることになる。Further, the biological signal detecting means 3 is arranged at the end of the lower surface side of the vibration transmitting means 2 having elasticity for supporting the living body 1, which is opposite to the side supporting the living body 1 in plan view. It is also preferable that By adopting such a configuration, when the living body 1 is supported by the vibration transmitting means 2 having higher elasticity, the living body signal detecting means 3 does not cause a feeling of strangeness. It is also preferable that the surface of the biological signal detecting means 3 on the side of the vibration transmitting means 2 is formed into a hemispherical shape , or that the protrusion 7 is provided in the central portion of the biological signal detecting means 3 on the side of the vibration transmitting means 2. By adopting such a configuration, the load can be stably applied to the load point of the biological signal detecting means 3.
【００１０】また、Ｓ字状をしたばね材６の直線部６ａ
が生体信号検出手段３の中央に当たるように配設して成
ることも好ましい。このような構成を採用することで、
生体１を弾性を有する振動伝達手段２に支持した際にＳ
字状をしたばね材６がたわみ、Ｓ字状をしたばね材６の
直線部６ａが生体信号検出手段３の中央に当たって生体
信号検出手段３に均等に荷重を与えて生体信号を検出す
ることができる。 Further, the linear portion 6a of the spring member 6 in which the S-shaped
Is preferably arranged so as to hit the center of the biological signal detecting means 3. By adopting such a configuration,
When the living body 1 is supported by the elastic vibration transmitting means 2, S
The V-shaped spring member 6 bends, and the linear portion 6a of the S-shaped spring member 6 hits the center of the bio-signal detection unit 3 and applies a load evenly to the bio-signal detection unit 3 to detect the bio-signal. it can.
【００１１】また、生体信号検出手段３が光ファイバー
８で構成してあることも好ましく、また、信号検出回路
５を内装した固定ボックス２５の上面部に生体信号検出
手段３を装着して成ることも好ましい。このような構成
を採用することで、信号検出回路５を生体信号検出手段
３の近傍に配置して生体信号検出手段３として用いる光
ファイバー８を短くできて、ノイズが少なくできること
になる。It is also preferable that the biological signal detecting means 3 is composed of an optical fiber 8, and a signal detecting circuit is also provided.
5 detection of biological signals on the upper surface of the fixed box 25
It is also preferable to mount the means 3 . By adopting such a configuration, the signal detection circuit 5 can be used as the biological signal detection means.
The optical fiber 8 which is arranged in the vicinity of 3 and used as the biological signal detecting means 3 can be shortened, and noise can be reduced.
【００１２】[0012]
【発明の実施の形態】図１には椅子９に生体信号検出装
置を取付けた実施形態を示している。椅子９においては
生体１を支持する部材がＳばねと称されるＳ字状をした
ばね材６等で構成された弾性を有する振動伝達手段２に
より構成してあり、この生体１を支持するための弾性を
有する振動伝達手段２の生体１を支持する側と反対側に
生体の微小な動きを検出するための生体信号検出手段３
が配設してあり、該生体信号検出手段３は生体信号検出
手段３の振動伝達手段２と反対側に位置する支持部４に
支持してある。そして、椅子９においては、生体１を支
持する部材であるＳ字状をしたばね材６等で構成された
弾性を有する振動伝達手段２の上面部に椅子９の座部を
構成するためのクッション１０が配置してある。つま
り、従来にあっては、図１２のように生体１を支持する
部材である弾性体２′の上面（生体１を支持する側の
面）に生体信号検出手段３を配置しているのに対し、本
発明は生体１を支持する部材である弾性を有する振動伝
達手段２の下面（生体１を支持する側と反対側の面）側
において弾性を有する振動伝達手段２と支持部４との間
に配設してある構成に特徴がある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment in which a biological signal detecting device is attached to a chair 9. In the chair 9, the member for supporting the living body 1 is constituted by the elastic vibration transmitting means 2 composed of the S-shaped spring material 6 called S spring, and the like, for supporting the living body 1. Biological signal detecting means 3 for detecting minute movements of the living body on the side opposite to the side supporting the living body 1 of the vibration transmitting means 2 having elasticity.
The biological signal detecting means 3 is supported by a supporting portion 4 located on the opposite side of the biological signal detecting means 3 from the vibration transmitting means 2. Then, in the chair 9, a cushion for forming a seat portion of the chair 9 is provided on the upper surface portion of the elastic vibration transmitting means 2 including the S-shaped spring member 6 that is a member that supports the living body 1. 10 are arranged. That is, in the conventional case, the biological signal detecting means 3 is arranged on the upper surface (the surface on the side supporting the living body 1) of the elastic body 2'which is a member supporting the living body 1 as shown in FIG. On the other hand, according to the present invention, the vibration transmitting means 2 having elasticity and the supporting portion 4 are provided on the lower surface side (the surface opposite to the side supporting the living body 1) of the elastic vibration transmitting means 2 which is a member for supporting the living body 1. It is characterized by the structure arranged between them.
【００１３】生体信号検出手段３は光ファイバー８の一
端に発光ダイオードのような発光素子１１ａを、他端に
受光素子１１ｂを接続し、発光素子１１ａを発光させて
光ファイバー８に光を透過させ、生体荷重を受ける方向
に光ファイバー８が撓むことができるような構造となっ
ている。そして、生体１の荷重がかかると、光ファイバ
ー８によって発光素子１１ａから受光素子１１ｂへと導
かれる光の量を、生体荷重の変動に伴う光ファイバー８
の撓みによって変化させることで、荷重変動を捕らえ、
ここから生体信号を検出するものである。つまり、図４
には信号検出回路５が示してあり、この図４に示すよう
に、受光素子１１ａにはその電流出力を電圧に変換する
変換部１２と増幅部１３とを介してローパスフィルター
やコンパレータ等からなる弁別部１４を有して体動や呼
吸、あるいは心拍等の生体信号を検出する検出部１５を
接続してある。[0013] biosignal detecting means 3 the light emitting element 11a such as a light emitting diode to one end of the optical fiber 8, to connect the light receiving element 11b at the other end, by transmitting light into the optical fiber 8 by the light emitting elements 11a, biological The structure is such that the optical fiber 8 can be bent in the direction of receiving a load. Then, when the load of the living body 1 is applied, the amount of light guided by the optical fiber 8 from the light emitting element 11a to the light receiving element 11b is changed by the optical fiber 8 according to the variation of the living body load.
By changing by the deflection of the
The biological signal is detected from here. That is, FIG.
4, a signal detection circuit 5 is shown, and as shown in FIG. 4, the light receiving element 11a is composed of a low-pass filter, a comparator, etc. via a conversion section 12 for converting its current output into a voltage and an amplification section 13. A detection unit 15 having a discrimination unit 14 for detecting a biological signal such as body movement, respiration, or heartbeat is connected.
【００１４】図２、図３には上記生体信号検出手段３に
おいて光ファイバー８が荷重がかからない時には直線状
を保ち、荷重がかかった時に撓むようにした構造を示し
ている。すなわち、上面に凹凸部１６を備えた部材１７
ａと、下面に凹凸部１６を備えた部材１７ｂとの間に光
ファイバー８を通し、生体荷重がかからない時には図３
（ａ）のように部材１７ｂを部材１７ａから浮かして置
き、生体荷重がかかった場合には図３（ｂ）のように部
材１７ｂが下降して光ファイバー８を撓ませるようにな
っている。ここで、光ファイバー８の屈曲部の数と曲率
は、光ファイバー８の長手方向に複数の凹凸部１６を設
けることと、凹凸部１６の間隔や高さによって設定する
ことができる。図中１８は光ファイバー８が屈曲点から
ずれないように凹凸部１６の凸部に設けた光ファイバー
８固定用の溝であり、光ファイバー８をこの溝１８には
め込むことで屈曲点からずれたり、充分な屈曲量が得ら
れなかったりするという事態が生じないようにしてい
る。該溝１８はすべての凸部に設けてもよいが、一部の
凸部にのみ設けてもよい。2 and 3 show a structure in which the optical signal 8 in the biological signal detecting means 3 is kept linear when no load is applied and is bent when a load is applied. That is, the member 17 having the uneven portion 16 on the upper surface
The optical fiber 8 is passed between a and the member 17b having the concave-convex portion 16 on the lower surface, and when the living body load is not applied, FIG.
The member 17b is floated from the member 17a as shown in (a), and when a living body load is applied, the member 17b descends to bend the optical fiber 8 as shown in FIG. 3 (b). Here, the number and the curvature of the bent portions of the optical fiber 8 can be set by providing a plurality of uneven portions 16 in the longitudinal direction of the optical fiber 8 and the intervals and heights of the uneven portions 16. In the figure, reference numeral 18 denotes a groove for fixing the optical fiber 8 provided on the convex portion of the uneven portion 16 so that the optical fiber 8 does not deviate from the bending point. This prevents the situation where the amount of bending cannot be obtained. The groove 18 may be provided on all the convex portions, but may be provided on only some of the convex portions.
【００１５】しかして、人、つまり生体１が椅子９のク
ッション１０に座ると、その荷重がクッション１０にか
かってクッション１０を支持している弾性を有する振動
伝達手段２である弾性体により支持される。この場合、
生体を弾性を有する振動伝達手段２で支持すると、弾性
を有する振動伝達手段２が撓んで、生体信号検出手段３
に荷重がかかり、確実に生体信号を検出することができ
るものである。この場合、生体１を支持する弾性を有す
る振動伝達手段２の生体１と反対側の面に生体信号検出
手段３を配置しているので、人が椅子９に座っても、生
体１を支持する弾性を有する振動伝達手段２の上に生体
信号検出手段３がある場合に比べて生体信号検出手段３
が邪魔にならず、違和感が少なくなるものである。When a person, that is, the living body 1 sits on the cushion 10 of the chair 9, the load is applied to the cushion 10 and is supported by the elastic body which is the elastic vibration transmitting means 2 supporting the cushion 10. It in this case,
When the living body is supported by the elastic vibration transmitting means 2, the elastic vibration transmitting means 2 bends and the biological signal detecting means 3
Since a load is applied to the body, it is possible to reliably detect the biological signal. In this case, since the biological signal detecting means 3 is arranged on the surface of the elastic vibration transmitting means 2 supporting the living body 1 opposite to the living body 1, the living body 1 is supported even when a person sits on the chair 9. Compared with the case where the biological signal detecting means 3 is provided on the vibration transmitting means 2 having elasticity, the biological signal detecting means 3 is provided.
Does not get in the way, and the discomfort is reduced.
【００１６】図１、図５には生体信号検出手段３を生体
１を支持する弾性を有する振動伝達手段２の下面（生体
を支持する面と反対の面）側の中央に配置した例を示し
ているが、図６乃至図９には生体信号検出手段３を生体
１を支持する弾性を有する振動伝達手段２の下面側の端
部に配置した例を示している。この図６乃至図９に示す
ように生体信号検出手段３を生体１を支持する弾性を有
する振動伝達手段２の下面側の端部に配置すると、図
１、図５のように中央に配置した場合に比べ、椅子９に
座った時の弾性を有する振動伝達手段２の中央付近がよ
り撓み、座った時の違和感もより少なくなる。また、ク
ッション１０のどこに座っても弾性を有する振動伝達手
段２は撓んで生体信号検出手段３に荷重を与えるので、
生体信号検出手段３を弾性を有する振動伝達手段２の下
面側の端部に配置しても、生体信号を確実に検出するこ
とができるものである。FIGS. 1 and 5 show an example in which the biological signal detecting means 3 is arranged at the center of the lower surface (the surface opposite to the surface supporting the living body) of the elastic vibration transmitting means 2 supporting the living body 1. However, FIGS. 6 to 9 show an example in which the biological signal detecting means 3 is arranged at the end portion on the lower surface side of the elastic vibration transmitting means 2 for supporting the living body 1. As shown in FIGS. 6 to 9, when the biological signal detecting means 3 is arranged at the end portion on the lower surface side of the elastic vibration transmitting means 2 which supports the living body 1, it is arranged at the center as shown in FIGS. Compared with the case, the vicinity of the center of the vibration transmitting means 2 having elasticity when sitting on the chair 9 is further bent, and the discomfort when sitting is further reduced. Moreover, since the vibration transmitting means 2 having elasticity bends and applies a load to the biological signal detecting means 3 regardless of where the cushion 10 is seated,
Even if the biological signal detecting means 3 is arranged at the end portion on the lower surface side of the vibration transmitting means 2 having elasticity, the biological signal can be surely detected.
【００１７】ところで、生体信号検出手段３が光ファイ
バー８を図２、図３のように凹凸部１６を備えた２枚の
板状の部材１７ａ、１７ｂで挟んで構成されている場
合、より大きな信号を得るためには光ファイバー８が各
凹凸部１６で均等に撓むようにすることが望ましいが、
それには、硬い材質の板状の部材の端部よりも中央部に
荷重を与えることが必要になる、そこで、図５に示す実
施形態においては、生体１を支持するための部材である
弾性を有する振動伝達手段２を構成する弾性体がＳ字状
のばね材６により構成してあり、このＳ字状のばね材６
の直線部６ａが生体信号検出手段３のほぼ中央部に密接
するように配設し、人がクッション１０に座った時にＳ
字状のばね材６が撓み、Ｓ字状のばね材６の直線部６ａ
が生体信号検出手段３のほぼ中央部に荷重を与えて生体
信号を検出することができるようにしてある。このこと
により光ファイバー８が各凹凸部１６で均等に撓むこと
ができて、より大きな信号を得ることができるようにな
っている。By the way, when the biological signal detecting means 3 is constructed by sandwiching the optical fiber 8 between two plate-like members 17a and 17b having the concave and convex portions 16 as shown in FIGS. In order to obtain the above, it is desirable that the optical fiber 8 is bent uniformly at each uneven portion 16,
For that purpose, it is necessary to apply a load to the central portion of the plate-shaped member made of a hard material rather than the end portions thereof. Therefore, in the embodiment shown in FIG. The elastic body that constitutes the vibration transmitting means 2 has an S-shaped spring member 6, and this S-shaped spring member 6
The straight line portion 6a of the above is arranged so as to be in close contact with the substantially central portion of the biological signal detecting means 3, and when a person sits on the cushion 10, S
The V-shaped spring member 6 is bent, and the straight portion 6a of the S-shaped spring member 6 is bent.
The load is applied to the substantially central portion of the biological signal detecting means 3 so that the biological signal can be detected. As a result, the optical fiber 8 can be bent evenly in each of the concave-convex portions 16, and a larger signal can be obtained.
【００１８】また、図１０に示す実施形態のように、Ｓ
字状のばね材６と接触する生体信号検出手段３の中央部
を荷重点とし、部材１７ｂのＳ字状のばね材６と接触す
る面を半球状にすると、Ｓ字状のばね材６が撓んで荷重
点以外でＳ字状のばね材６が部材１７ｂを押さえること
がなく、荷重点のみに安定して荷重をかけることができ
るものである。Further, as in the embodiment shown in FIG. 10, S
When the center of the biological signal detecting means 3 in contact with the S-shaped spring member 6 is set as a load point and the surface of the member 17b in contact with the S-shaped spring member 6 is formed into a hemispherical shape, the S-shaped spring member 6 is formed. The S-shaped spring member 6 does not press the member 17b at a point other than the load point by bending and the load can be stably applied only to the load point.
【００１９】また、図１１に示す実施形態のように、Ｓ
字状のばね材６と接触する生体信号検出手段３の中央部
を荷重点とし、部材１７ｂのＳ字状のばね材６と接触す
る面に突起７を設け、該突起７をばね材６に密接される
構成とすると、部材１７ｂを半球状にしなくても確実に
荷重点にのみ荷重をかけることができるものである。Further, as in the embodiment shown in FIG. 11, S
The central portion of the biological signal detecting means 3 that comes into contact with the V-shaped spring member 6 is used as a load point, and a projection 7 is provided on the surface of the member 17b that comes into contact with the S-shaped spring member 6, and the projection 7 is attached to the spring member 6. With the close contact, the load can be reliably applied only to the load point without forming the member 17b into a hemispherical shape .
【００２０】図１２には生体信号検出手段３で得られた
微小な生体信号を増幅、波形整形、弁別する信号検出回
路５を生体信号検出手段３の近傍に配置した例を示して
いる。すなわち、生体信号検出手段３で使用される光フ
ァイバー８は微小な衝撃を与えても透過光量が微小に変
動し、心拍による微小荷重変動による透過光量と同レベ
ルの大きさに達することがあり、これがノイズとなって
心拍信号の検出が困難になる可能性がある。しかして、
生体信号検出手段３と信号検出回路５を離し、その間を
光ファイバー８で連結すると、光ファイバー８を固定で
きず、自然な曲がりの状態になる。これが、生体１を支
持する弾性を有する振動伝達手段２に接触すれば、光フ
ァイバー８に衝撃を与えてノイズになり、また、例え接
触しなくても生体信号検出手段３の光ファイバー８の撓
みによって、生体信号検出手段３の光ファイバー８に衝
撃が加わりノイズになることがある。このため生体信号
検出手段３以外の光ファイバー８は極力短くする必要が
あり、図８、図９、図１２のように、信号検出回路５を
生体信号検出手段３のごく近傍に配置すれば、生体信号
検出手段３外部の光ファイバー８を短くできてノイズが
少なくなるものである。図中２５は信号検出回路５を内
装した固定ボックスで、上面部に生体信号検出手段３の
部材１７ａ側が装着してある。FIG. 12 shows an example in which a signal detection circuit 5 for amplifying, waveform shaping and discriminating a minute biological signal obtained by the biological signal detecting means 3 is arranged in the vicinity of the biological signal detecting means 3. That is, the transmitted light amount of the optical fiber 8 used in the biological signal detecting means 3 may fluctuate slightly even if a small impact is given, and the amount of transmitted light may reach the same level as the transmitted light amount due to a minute load change due to heartbeat. There is a possibility that it becomes noise and it becomes difficult to detect the heartbeat signal. Then,
If the biological signal detecting means 3 and the signal detecting circuit 5 are separated and the space between them is connected by the optical fiber 8, the optical fiber 8 cannot be fixed and a natural bending state occurs. If this comes into contact with the vibration transmitting means 2 having elasticity that supports the living body 1, the optical fiber 8 is impacted and becomes noise, and even if the living body signal detecting means 3 does not come into contact with the optical fiber 8, the optical fiber 8 is bent, Impact may be applied to the optical fiber 8 of the biological signal detecting means 3 to cause noise. Therefore, the optical fiber 8 other than the biological signal detecting means 3 needs to be as short as possible, and if the signal detecting circuit 5 is arranged in the vicinity of the biological signal detecting means 3 as shown in FIGS. The optical fiber 8 outside the signal detecting means 3 can be shortened to reduce noise. In the figure, reference numeral 25 is a fixed box in which the signal detection circuit 5 is incorporated, and the member 17a side of the biological signal detection means 3 is mounted on the upper surface portion.
【００２１】なお上記各実施形態においては椅子９に生
体信号検出手段３を装備した例を示したが、ベッド、マ
ッサージ機等に上記と同様の構成で生体信号検出手段３
を装備してもよいものである。Although the chair 9 is equipped with the biological signal detecting means 3 in each of the above-described embodiments, the biological signal detecting means 3 having the same configuration as described above is provided in a bed, a massager or the like.
May be equipped with.
【００２２】[0022]
【発明の効果】本発明にあっては、上述のように、生体
に接触するクッションを支持して該クッションにかかる
生体の荷重を支持するための弾性を有するＳ字状をした
ばね材により構成された振動伝達手段と、該振動伝達手
段の生体を支持する側と反対側に配置した生体の微小な
動きを検出するための生体信号検出手段と、生体信号検
出手段の振動伝達手段側と反対側に位置して生体信号検
出手段を支持する支持部とで構成されているので、弾性
を有する振動伝達手段の生体を支持する側に生体信号検
出手段がある場合に比べて弾性を有する振動伝達手段に
生体を支持した際の違和感がなく、また、このように生
体を支持した際に生体信号検出手段が違和感がないよう
に生体を支持する部材の生体と反対側の面に生体信号検
出手段を配置したにもかかわらず、生体を支持するため
の部材が弾性を有する振動伝達手段であるため、生体を
支持した際に弾性を有する振動伝達手段が撓んで生体信
号検出手段に荷重がかかり、確実に生体信号を検出する
ことができるものである。しかも、生体を支持した際に
生体信号検出手段が違和感がないように生体を支持する
部材の生体と反対側の面に生体信号検出手段を配置して
あるので、生体信号検出手段の厚さ等の制約がなくて、
生体信号検出手段の厚みを薄くしすぎて生体信号が正確
に検出できないという事態が生じないようにできるもの
である。As described above, according to the present invention, the living body
The cushion that contacts the
S-shaped with elasticity to support the load of the living body
Vibration transmitting means composed of a spring material , biological signal detecting means for detecting a minute movement of the living body arranged on the side opposite to the side supporting the living body of the vibration transmitting means , and vibration transmitting of the biological signal detecting means Since it is composed of a support portion located on the side opposite to the means side and supporting the biomedical signal detecting means, it is elastic as compared with the case where the biomedical signal detecting means is on the side supporting the living body of the elastic vibration transmitting means. There is no discomfort when a living body is supported by the vibration transmitting means having, and the surface opposite to the living body of the member that supports the living body so that the biological signal detecting means does not feel discomfort when supporting the living body in this way. Since the member for supporting the living body is the elastic vibration transmitting means despite the arrangement of the biological signal detecting means, the elastic vibration transmitting means bends when the living body is supported to become the biological signal detecting means. load Consuming, and is capable of reliably detecting a biological signal. Moreover, since the biological signal detecting means is arranged on the surface of the member supporting the biological body on the side opposite to the biological body so that the biological signal detecting means does not feel uncomfortable when supporting the biological body, the thickness of the biological signal detecting means, etc. There is no restriction of
It is possible to prevent a situation in which the biological signal cannot be accurately detected because the biological signal detecting means is too thin.
【００２３】また、生体信号検出手段が生体を支持する
ための弾性を有する振動伝達手段の生体を支持する側と
反対側である下面側の平面視における端部に配設されて
るものにおいては、よりいっそう生体信号検出手段が邪
魔にならず、違和感がないものである。また、生体信号
検出手段の振動伝達手段側の面が半球状をしていたり、
生体信号検出手段の振動伝達手段側の中央部に突起を設
けたものにおいては、生体信号検出手段の定められた荷
重点にのみ安定して荷重をかけることができて、安定し
て生体信号を検出することができるものである。Further, in the case where the biological signal detecting means is disposed at the end portion in plan view of the lower surface side of the vibration transmitting means having elasticity for supporting the living body, which is the side opposite to the side supporting the living body, The biological signal detecting means is even more unobtrusive and comfortable. Further, optimum surface of the vibration transmitting means side of the biological signal detecting means by a hemispherical
In the case where the protrusion is provided at the center portion of the biological signal detecting means on the side of the vibration transmitting means, it is possible to stably apply the load only to the predetermined load point of the biological signal detecting means, and to stably output the biological signal. It is something that can be detected.
【００２４】また、Ｓ字状をしたばね材の直線部が生体
信号検出手段の中央に当たるように配設したものにおい
は、生体信号検出手段の略中央部に荷重を与えて安定し
て生体信号を検出することができるものである。また、
信号検出回路を内装した固定ボックスの上面部に生体信
号検出手段を装着してあることで、信号検出回路を生体
信号検出手段の近傍に配置してノイズを少なくすること
ができるものである。Further , in the case of the S-shaped spring member arranged so that the linear portion of the spring member hits the center of the biological signal detecting means, a load is applied to the substantially central portion of the biological signal detecting means to stabilize the biological signal. Can be detected. Also,
The vital signs are placed on the top of the fixed box that incorporates the signal detection circuit.
The signal detection circuit is installed by installing the signal detection means.
The noise can be reduced by disposing it in the vicinity of the signal detecting means .
【図１】本発明の一実施形態の概略正面図である。FIG. 1 is a schematic front view of an embodiment of the present invention.
【図２】同上の生体信号検出手段の概略斜視図である。FIG. 2 is a schematic perspective view of the biological signal detection means of the above.
【図３】（ａ）は同上の荷重がかかっていない状態の概
略正面図であり、（ｂ）は同上の荷重がかかって光ファ
イバーが変形した状態を示す概略正面図である。FIG. 3 (a) is a schematic front view showing a state in which the same load is not applied, and FIG. 3 (b) is a schematic front view showing a state in which the optical fiber is deformed by applying the same load.
【図４】同上のブロック回路図である。FIG. 4 is a block circuit diagram of the above.
【図５】同上のＳ字状のばね材の直線部を生体信号検出
手段の中央部に配置した例を示す平面図である。FIG. 5 is a plan view showing an example in which the linear portion of the above S-shaped spring member is arranged in the center of the biological signal detecting means.
【図６】本発明の他の実施形態を示し、弾性を有する振
動伝達手段の生体を支持する側と反対側の端部に生体信
号検出手段を配置した例を示す概略正面図である。FIG. 6 is a schematic front view showing another embodiment of the present invention and showing an example in which biological signal detecting means is arranged at an end of the elastic vibration transmitting means on the side opposite to the side supporting the living body.
【図７】同上の平面図である。FIG. 7 is a plan view of the above.
【図８】同上の正面断面図である。FIG. 8 is a front sectional view of the above.
【図９】同上の側面断面図である。FIG. 9 is a side sectional view of the above.
【図１０】本発明の更に他の実施形態を示す概略説明図
である。FIG. 10 is a schematic explanatory view showing still another embodiment of the present invention.
【図１１】本発明の更に他の実施形態を示す概略説明図
である。FIG. 11 is a schematic explanatory view showing still another embodiment of the present invention.
【図１２】本発明の更に他の実施形態を示す概略説明図
である。FIG. 12 is a schematic explanatory view showing still another embodiment of the present invention.
【図１３】従来例を示し、（ａ）は正面図であり、
（ｂ）は側面図である。FIG. 13 shows a conventional example, (a) is a front view,
(B) is a side view.
１ 生体 ２ 振動伝達手段 ３ 生体信号検出手段 ４ 支持部 ５ 信号検出回路 ６ ばね材 ６ａ 直線部 ７ 突起 ８ 光ファイバー 1 living body 2 Vibration transmission means 3 Biological signal detection means 4 Support 5 Signal detection circuit 6 Spring material 6a Straight part 7 protrusions 8 optical fiber
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平１−207036（ＪＰ，Ａ) 特開 平８−584（ＪＰ，Ａ) 特開 平６−30914（ＪＰ，Ａ) 特開 平７−204165（ＪＰ，Ａ) 特開 平５−317374（ＪＰ，Ａ) 特開 昭54−42884（ＪＰ，Ａ) 特開 昭60−49200（ＪＰ，Ａ) 特開 平６−34401（ＪＰ，Ａ) 特公 平２−48252（ＪＰ，Ｂ２) 実公 平３−35292（ＪＰ，Ｙ２) 実公 平１−19925（ＪＰ，Ｙ２) (58)調査した分野(Int.Cl.7，ＤＢ名) A61B 5/00 - 5/11 A61H 7/00 A61H 15/00 G01L 1/24 ─────────────────────────────────────────────────── --Continued from the front page (56) References JP-A 1-207036 (JP, A) JP-A 8-584 (JP, A) JP-A 6-30914 (JP, A) JP-A 7- 204165 (JP, A) JP 5-317374 (JP, A) JP 54-42884 (JP, A) JP 60-49200 (JP, A) JP 6-34401 (JP, A) Japanese Patent Publication 2-48252 (JP, B2) Actual Public 3-35292 (JP, Y2) Actual Public 1-19925 (JP, Y2) (58) Fields investigated (Int.Cl. 7 , DB name) A61B 5/00-5/11 A61H 7/00 A61H 15/00 G01L 1/24
Claims (7)
クッションにかかる生体の荷重を支持するための弾性を
有するＳ字状をしたばね材により構成された振動伝達手
段と、 該振動伝達手段の生体を支持する側と反対側に配置した
生体の微小な動きを検出するための生体信号検出手段
と、生体信号検出手段の振動伝達手段側と反対側に位置
して生体信号検出手段を支持する支持部とで構成されて
成ることを特徴とする生体信号検出装置。1. A cushion supporting a living body is supported.
Elasticity to support the load of the living body on the cushion
A vibration transmitting means composed of the S-shaped spring material, a biological signal detecting means for detecting a minute movement of the biological body arranged on the side opposite to the side supporting the biological body of the vibration transmitting means, and a biological body A biological signal detecting device, comprising: a support portion which is located on the side opposite to the vibration transmitting means side of the signal detecting means and which supports the biological signal detecting means.
の弾性を有する振動伝達手段の生体を支持する側と反対
側である下面側の平面視における端部に配設されて成る
ことを特徴とする請求項１記載の生体信号検出装置。2. The biological signal detecting means is arranged at an end portion in a plan view of the lower surface side of the vibration transmitting means having elasticity for supporting the living body, which is opposite to the side supporting the living body. The biological signal detecting device according to claim 1.
が半球状をしていることを特徴とする請求項１記載の生
体信号検出装置。3. The biological signal detecting apparatus according to claim 1, wherein the surface of the biological signal detecting means on the side of the vibration transmitting means is hemispherical .
央部に突起を設けて成ることを特徴とする請求項１記載
の生体信号検出装置。4. The biological signal detecting apparatus according to claim 1, wherein a protrusion is provided in a central portion of the biological signal detecting means on the side of the vibration transmitting means.
たばね材の直線部が生体信号検出手段の中央に当たるよ
うに配設して成ることを特徴とする請求項１記載の生体
信号検出装置。 5. An S-shape forming the vibration transmission means is formed.
The straight part of the spring material hits the center of the biological signal detecting means.
The living body according to claim 1, characterized in that
Signal detection device.
してあることを特徴とする請求項１記載の生体信号検出
装置。 6. The biological signal detecting means is composed of an optical fiber.
The biological signal detection according to claim 1, characterized in that
apparatus.
上面部に生体信号検出手段を装着して成ることを特徴と
する請求項１記載の生体信号検出装置。 7. A fixed box having a signal detection circuit incorporated therein.
The biological signal detecting means is mounted on the upper surface,
The biological signal detecting device according to claim 1.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00430996A JP3536500B2 (en) | 1996-01-12 | 1996-01-12 | Biological signal detection device |
| DE19780107T DE19780107B4 (en) | 1996-01-12 | 1997-01-09 | Device for detecting biological signals |
| PCT/JP1997/000027 WO1997024976A1 (en) | 1996-01-12 | 1997-01-09 | Apparatus for detecting living body signals |
| US08/875,761 US6030347A (en) | 1996-01-12 | 1997-01-09 | Biological-signal detecting device |
| KR1019970706488A KR100249588B1 (en) | 1996-01-12 | 1997-01-09 | Apparatus for detecting living body signals |
| TW086100223A TW330838B (en) | 1996-01-12 | 1997-01-10 | The detector for living body signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00430996A JP3536500B2 (en) | 1996-01-12 | 1996-01-12 | Biological signal detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09192110A JPH09192110A (en) | 1997-07-29 |
| JP3536500B2 true JP3536500B2 (en) | 2004-06-07 |
Family
ID=11580896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00430996A Expired - Lifetime JP3536500B2 (en) | 1996-01-12 | 1996-01-12 | Biological signal detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3536500B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001204694A (en) * | 2000-01-26 | 2001-07-31 | Matsushita Electric Works Ltd | Bio-information detector |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5442884A (en) * | 1977-09-10 | 1979-04-05 | Matsushita Electric Works Ltd | Chair type massager |
| FI59718C (en) * | 1979-03-13 | 1981-10-12 | Instrumentarium Oy | FOERFARANDE INOM LAEKARVETENSKAPEN FOER OEVERVAKNING OCH / ELLER REGISTRERING AV EN PAO EN SAENG LIGGANDE PERSONS T EX EN PATIENTS KROPPSROERELSER |
| JPS6049200A (en) * | 1983-08-25 | 1985-03-18 | Hitachi Cable Ltd | Abnormality monitoring system for underground material |
| JPS6092505U (en) * | 1983-11-28 | 1985-06-24 | 瑞穂産業有限会社 | Spring connection structure for beds that records the number of times the bed turns over |
| JPH0335292Y2 (en) * | 1987-10-06 | 1991-07-26 | ||
| JPH01207036A (en) * | 1988-02-15 | 1989-08-21 | Matsushita Electric Works Ltd | Body motion detector |
| JP3418998B2 (en) * | 1992-05-26 | 2003-06-23 | 松下電工株式会社 | Roller massage machine |
| JP3131292B2 (en) * | 1992-07-15 | 2001-01-31 | 松下電工株式会社 | Biological signal detection device |
| JPH07119629B2 (en) * | 1992-07-22 | 1995-12-20 | 日本航空電子工業株式会社 | Optical fiber laying structure for terrain displacement detection |
| JP3214207B2 (en) * | 1994-01-24 | 2001-10-02 | 松下電器産業株式会社 | Bedtime equipment |
| JP3562024B2 (en) * | 1994-04-20 | 2004-09-08 | 松下電工株式会社 | Biological signal detection device |
-
1996
- 1996-01-12 JP JP00430996A patent/JP3536500B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09192110A (en) | 1997-07-29 |
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