JPS62249638A - Apparatus for measuring electric signal of living body - Google Patents
Apparatus for measuring electric signal of living bodyInfo
- Publication number
- JPS62249638A JPS62249638A JP61093269A JP9326986A JPS62249638A JP S62249638 A JPS62249638 A JP S62249638A JP 61093269 A JP61093269 A JP 61093269A JP 9326986 A JP9326986 A JP 9326986A JP S62249638 A JPS62249638 A JP S62249638A
- Authority
- JP
- Japan
- Prior art keywords
- input
- connector
- living body
- measuring device
- present
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000036982 action potential Effects 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 230000031018 biological processes and functions Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、生体の活動電位の変化を皮膚面に接着した電
極により検出して記録し、診断の用に供するための生体
電気信号測定装置、例えば脳波計、心電計、筋電計など
の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a bioelectrical signal measuring device for detecting and recording changes in the action potential of a living body using electrodes adhered to the skin surface, and for use in diagnosis. This relates to the improvement of electroencephalographs, electrocardiographs, electromyographs, etc.
さらに詳しくいえば、本発明は、接続器内に所定の電子
回路を形成させることにより上記生体電気信号測定装置
における雑音の影響を少なくし、正確な測定結果が得ら
れるように、改良した新規な装置に関するものである。More specifically, the present invention provides an improved and novel method that reduces the influence of noise on the bioelectrical signal measuring device by forming a predetermined electronic circuit within the connector, thereby allowing accurate measurement results to be obtained. It is related to the device.
従来の技術
一般に生体の活動電位を測定してその結果を診断に利用
することが広く行われているが、この場合には、被験者
の所定部位に生体電極を接着し、この生体電極に連なる
リード線の各一端に設けられたジャックを一括して中継
コネクターに接続し、この中継コネクターを、測定器の
入力コネクターに接続して行うのが普通である。ところ
で、この生体電気信号測定装置は、通常、生体活動電位
を増幅して取り出す前置増幅器と、測定装置のペン書オ
ツシログラフや電磁オツシログラフを駆動するための出
力を得る主増幅器を有しているが、信号線の揺動に起因
する雑音や外来誘導雑音の影響を受けやすく、この傾向
は特に脳波のように電位変化の小さいものについて著し
い。Conventional technology Generally, it is widely practiced to measure the action potential of a living body and use the results for diagnosis. Normally, the jacks provided at each end of the wires are connected together to a relay connector, and this relay connector is connected to the input connector of the measuring instrument. By the way, this bioelectrical signal measuring device usually has a preamplifier that amplifies and extracts the biological action potential, and a main amplifier that obtains an output for driving the pen-written oscillograph or electromagnetic oscillograph of the measuring device. , they are easily affected by noise caused by fluctuations in signal lines and externally induced noise, and this tendency is particularly remarkable for things with small potential changes, such as brain waves.
これまで、このような雑音の影響を防ぐには、生体と測
定装置との距離をできるだけ短かくし、また生体や接続
器、信号線、測定器などを遮へいす［る手段がとられて
いるが、この場合、生体電気信号を正確に検知するには
測定装置への入力抵抗を高くしなければならず、他方、
雑音の影響を少なくするには、入力抵抗を低くしなけれ
ばならないというたがいに相反する要求を満たすために
、ある点で妥協せざるを得す、したがって信号対雑音比
を高めるにはおのずから限度があった。Until now, measures have been taken to prevent the effects of such noise by keeping the distance between the living body and the measuring device as short as possible, and by shielding the living body, connectors, signal lines, measuring instruments, etc. , in this case, the input resistance to the measuring device must be high to accurately detect the bioelectrical signals, and on the other hand,
In order to meet the contradictory demands of low input resistance to reduce the effects of noise, certain compromises must be made, and therefore there is a natural limit to increasing the signal-to-noise ratio. there were.
発明が解決しようとする問題点
本発明の目的は、生体電気信号を正確に検知するのに十
分な入力抵抗を維持したまま、信号対雑音比を十分に向
上させることができる生体電気信号測定装置を提供する
ことである。Problems to be Solved by the Invention An object of the present invention is to provide a bioelectrical signal measuring device that can sufficiently improve the signal-to-noise ratio while maintaining sufficient input resistance to accurately detect bioelectrical signals. The goal is to provide the following.
問題点を解決するための手段
本発明者らは、種々研究を重ねた結果、前置増幅器に相
当する部分に、生体電極からの入力信号を高抵抗で受は
取り、測定器に対する出力信号を低抵抗で送り出す電子
回路を介設することにより前記の目的を達成しうろこと
を見出し、本発明をなすに至った。Means for Solving the Problems As a result of various studies, the inventors of the present invention have developed a system that receives the input signal from the bioelectrode with high resistance in the part corresponding to the preamplifier, and outputs the signal to the measuring device. It has been discovered that the above object can be achieved by interposing an electronic circuit that sends out data with low resistance, and the present invention has been completed.
すなわち、本発明は、生体電極を係脱自在の中継コネク
ター、入力コネクターを介して信号線により測定器に接
続した装置において、上記生体電極に連なる入力端子の
一方に演算増幅器を介設するとともに、この演算増幅器
の出力側を抵抗を介して出力端子の一方に接続して形成
した電子回路を、前記中継コネクターと入力用コネクタ
ーのいずれか一方又は両方に付設したことをｖｆ徴とす
る生体電気信号測定装置を提供するものである。That is, the present invention provides an apparatus in which a bioelectrode is connected to a measuring instrument by a signal line via a detachable relay connector and an input connector, and an operational amplifier is interposed in one of the input terminals connected to the bioelectrode. A bioelectrical signal whose vf characteristic is that an electronic circuit formed by connecting the output side of the operational amplifier to one of the output terminals via a resistor is attached to either or both of the relay connector and the input connector. The present invention provides a measuring device.
実施例
次に添附図面に従って本発明の実施例について説明する
と、第１図は、本発明装置の実施例を示す説明図であっ
て、１は生体頭部、２は生体電極であって、この場合は
脳波計用刺入電極である単針電極を示す、３はリード線
、４は中継コネクター、５は入力用コネクター、６は信
号線、７は測定装置であって、これらは従来の装置と同
様であるか、この発明においては第２図に明らかなよう
に入力用コネクター５は、コネクターカバー５の内部に
信号線６に連なるプラグ８のほかに第３図に示す電子回
路９が組み込まれている。すなわち生体電極２・・・に
接続されるプラグ８・・・に連なる入力端子ｉ ｏ、ｉ
ｉの一方１０に演算増幅器１２が接続さ九、この演算
増幅器１２は、その出力側を抵抗１３を介して出力端子
１４．Ｉ Ｓの一方１４に接続され、かつ、非反転入力
である他方の入力側を出力端子１４に接続して疎結合さ
れ、緩衝回路を構成している。なお、この電子回路９は
第１図の実施例では入力用コネクター５内に設けられて
いるが、中継コネクター４の内部に設けてもよい。EXAMPLE Next, an example of the present invention will be described according to the attached drawings. FIG. 1 is an explanatory diagram showing an example of the apparatus of the present invention, in which 1 is a biological head, 2 is a biological electrode, and The case shows a single needle electrode that is an inserted electrode for electroencephalogram, 3 is a lead wire, 4 is a relay connector, 5 is an input connector, 6 is a signal line, and 7 is a measuring device, which are conventional devices. In the present invention, as is clear from FIG. 2, the input connector 5 has an electronic circuit 9 shown in FIG. 3 incorporated inside the connector cover 5 in addition to the plug 8 connected to the signal line 6. It is. In other words, the input terminals i o, i connected to the plugs 8 connected to the bioelectrodes 2...
An operational amplifier 12 is connected to one end 10 of the output terminal 14. It is connected to one side 14 of the IS, and the other input side, which is a non-inverting input, is connected to the output terminal 14 for loose coupling, thereby forming a buffer circuit. Although this electronic circuit 9 is provided inside the input connector 5 in the embodiment shown in FIG. 1, it may also be provided inside the relay connector 4.
作用効果
本発明は上記の構成により、生体電極からの入力信号は
、入力端子１０を介して高抵抗で受取り。Effects: With the above configuration, the present invention receives input signals from the bioelectrode through the input terminal 10 with high resistance.
出力端子１４からの生体電気信号は低抵抗で信号線６に
送り出され、前記目的が達成される。The bioelectrical signal from the output terminal 14 is sent out to the signal line 6 with low resistance, and the above purpose is achieved.
本発明は以上のように構成極めて簡単であってかつ上記
電子回路９はコネクターの内部に組み込まれて外部に突
出しておらず、さらに演算増幅器は本来、利得の高い直
流増幅器であって、前記脳波用として好適である等、多
くの利点がある。The present invention has an extremely simple configuration as described above, and the electronic circuit 9 is incorporated inside the connector and does not protrude to the outside. Furthermore, the operational amplifier is originally a high gain DC amplifier, and the brain wave It has many advantages, such as being suitable for various purposes.
第１図は本発明の実施例を示す説明図、第２図は内部部
材を取り出したコネクタ一部分の外観図、第３図は電子
回路の回路説明図である。
１ ・・・ 生体頭部
２ ・・・ 生体電極
４ ・・・ 中継コネクター
５ ・・・ 入力用コネクター
６ ・・・ 信号線
７ ・・・ 測定器
９ ・・・ 電子回路
ｔｏ、ｉｉ ・・・ 入力端子
１２ ・・・ 演算増幅器
１３ ・・・ 抵抗FIG. 1 is an explanatory diagram showing an embodiment of the present invention, FIG. 2 is an external view of a part of the connector with internal members taken out, and FIG. 3 is an explanatory diagram of an electronic circuit. 1... Living body head 2... Living body electrode 4... Relay connector 5... Input connector 6... Signal line 7... Measuring device 9... Electronic circuit to, ii... Input terminal 12... Operational amplifier 13... Resistor
Claims (1)
ターを介して信号線により測定器に接続した装置におい
て、上記生体電極に連なる入力端子の一方に演算増幅器
を介設するとともに、この演算増幅器の出力側を抵抗を
介して出力端子の一方に接続して形成した電子回路を、
前記中継コネクターと入力用コネクターのいずれか一方
又は両方に付設したことを特徴とする生体電気信号測定
装置。1. In a device in which a bioelectrode is connected to a measuring instrument by a signal line via a detachable relay connector and an input connector, an operational amplifier is interposed in one of the input terminals connected to the bioelectrode, and the output of this operational amplifier is An electronic circuit formed by connecting one side to one of the output terminals via a resistor,
A bioelectrical signal measuring device characterized in that it is attached to either or both of the relay connector and the input connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61093269A JPS62249638A (en) | 1986-04-24 | 1986-04-24 | Apparatus for measuring electric signal of living body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61093269A JPS62249638A (en) | 1986-04-24 | 1986-04-24 | Apparatus for measuring electric signal of living body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62249638A true JPS62249638A (en) | 1987-10-30 |
| JPH0347090B2 JPH0347090B2 (en) | 1991-07-18 |
Family
ID=14077745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61093269A Granted JPS62249638A (en) | 1986-04-24 | 1986-04-24 | Apparatus for measuring electric signal of living body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62249638A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012106141A (en) * | 2005-07-01 | 2012-06-07 | Impedimed Ltd | Monitoring system |
| JP2017518607A (en) * | 2014-04-18 | 2017-07-06 | ヘルスウォッチ・リミテッドＨｅａｌｔｈｗａｔｃｈ Ｌｔｄ． | Smart clothing connector and cable assembly |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS612563U (en) * | 1984-06-11 | 1986-01-09 | 小松造機株式会社 | Mudguard device for motor radar |
-
1986
- 1986-04-24 JP JP61093269A patent/JPS62249638A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS612563U (en) * | 1984-06-11 | 1986-01-09 | 小松造機株式会社 | Mudguard device for motor radar |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012106141A (en) * | 2005-07-01 | 2012-06-07 | Impedimed Ltd | Monitoring system |
| JP2017518607A (en) * | 2014-04-18 | 2017-07-06 | ヘルスウォッチ・リミテッドＨｅａｌｔｈｗａｔｃｈ Ｌｔｄ． | Smart clothing connector and cable assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0347090B2 (en) | 1991-07-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |