JPH05298589A - Living body signal measuring unit - Google Patents
Living body signal measuring unitInfo
- Publication number
- JPH05298589A JPH05298589A JP4005704A JP570492A JPH05298589A JP H05298589 A JPH05298589 A JP H05298589A JP 4005704 A JP4005704 A JP 4005704A JP 570492 A JP570492 A JP 570492A JP H05298589 A JPH05298589 A JP H05298589A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- frequency
- transmitter
- transmitted
- electrocardiographic
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は被検体の生体信号を計測
するための生体信号計測装置に係わり、特に生体信号を
テレメータ化（コードレス化）して計測する生体信号計
測装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a biological signal measuring device for measuring a biological signal of a subject, and more particularly to a biological signal measuring device for measuring a biological signal by converting it into a telemeter (cordless).
【０００２】[0002]
【従来の技術】現在、この種の生体信号計測装置として
は、心電計、体温計等がある。近年、電子技術の発達に
よって、生体信号計測はテレメータ化され、計測信号は
計測装置あるいはモニタ装置へ送信されるようになって
きている。特に心電計においては、被検者が送信機を携
帯し、心電図信号はこの送信機よりナースステーション
等に設けられたモニタ装置等へ送信され監視されるシス
テムが広く普及をしている状況にある。2. Description of the Related Art At present, as a biological signal measuring device of this type, there are an electrocardiograph and a thermometer. In recent years, with the development of electronic technology, biological signal measurement has been made into a telemeter, and the measurement signal has been transmitted to a measuring device or a monitor device. Especially in electrocardiographs, a system in which a subject carries a transmitter and an electrocardiogram signal is transmitted from this transmitter to a monitor device provided in a nurse station or the like and monitored is widely used. is there.
【０００３】また、多現象テレメータシステムとして、
体温、血圧、心電図等の信号をベッドサイドに固定して
ある送信機よりナースステーション等へ送信する装置も
実用化され使用されている。Further, as a multi-phenomenon telemeter system,
A device for transmitting signals such as body temperature, blood pressure, and electrocardiogram from a transmitter fixed to the bedside to a nurse station or the like has been put into practical use.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、前述の
テレメータシステムおよび多現象テレメータシステムの
いずれの場合も、被検者に装着されている生体信号計測
のための検出部（心電電極、温度センサ等）と送信機と
の間は、信号ケーブル等で接続されている。このため被
検者には著しく拘束感があった。また、被検者の体動等
により信号ケーブルと検出部との接触部において接触不
良を生じる恐れがあり、長時間計測の安定性に問題を残
していた。However, in both the telemeter system and the multi-phenomenon telemeter system described above, a detection unit (electrocardiographic electrode, temperature sensor, etc.) mounted on the subject for measuring a biological signal is used. ) And the transmitter are connected with a signal cable or the like. For this reason, the subject had a marked feeling of restraint. In addition, there is a possibility that contact failure may occur at the contact portion between the signal cable and the detection portion due to the body movement of the subject, etc., leaving a problem in the stability of long-term measurement.
【０００５】本発明はかかる問題点に鑑みてなされたも
ので、その目的は、被検者の拘束感を改善し、かつ長時
間安定化して生体計測ができるとともに、遠隔地におい
て生体信号をリアルタイムでモニタリングすることがで
きる、真の意味でテレメータ化された生体信号計測装置
を提供することにある。The present invention has been made in view of the above problems, and an object thereof is to improve the feeling of restraint of a subject and to perform stable biometric measurement for a long period of time, and also to perform real-time measurement of a biosignal in a remote place. The purpose of the present invention is to provide a biological signal measuring device which is telemetered in the true sense and which can be monitored by.
【０００６】[0006]
【課題を解決するための手段】本発明による生体信号計
測装置は、生体信号を検出する複数の電極部、これら電
極部により検出された生体信号を第１の周波数の送信波
として無線で送信する送信手段、およびこの送信手段に
電力を供給する電源部を有する検出部と、この検出部か
ら送信された送信波を受信し、前記第１の周波数とは異
なる第２の周波数の送信波を無線で送信する無線中継部
と、この無線中継部から送信された第２の周波数の送信
波を受信する受信手段、およびこの受信手段で受信した
受信波から生体信号を取り出して出力する出力手段を有
する出力部とを備えている。A biological signal measuring apparatus according to the present invention wirelessly transmits a plurality of electrode portions for detecting a biological signal and the biological signals detected by these electrode portions as a transmission wave of a first frequency. A transmission unit and a detection unit having a power supply unit that supplies electric power to the transmission unit, and a transmission wave transmitted from the detection unit is received, and a transmission wave of a second frequency different from the first frequency is wirelessly transmitted. And a receiving unit that receives the transmission wave of the second frequency transmitted from the wireless relay unit, and an output unit that extracts and outputs a biological signal from the received wave received by the receiving unit. And an output unit.
【０００７】このような構成により、本発明の生体信号
計測装置では、複数の電極部により生体信号が検出さ
れ、この生体信号は送信手段により第１の周波数の送信
波として無線で送信される。この送信波は無線中継部に
おいて受信され、さらにこの無線中継部から第２の周波
数の送信波として無線で送信される。そして、この送信
波が出力部において受信され、出力表示される。With such a configuration, in the biological signal measuring device of the present invention, the biological signal is detected by the plurality of electrode portions, and this biological signal is wirelessly transmitted as the transmission wave of the first frequency by the transmitting means. The transmission wave is received by the wireless relay unit, and is further wirelessly transmitted as the transmission wave of the second frequency from the wireless relay unit. Then, the transmitted wave is received by the output unit and is output and displayed.
【０００８】本発明の生体信号計測装置では、生体信号
計測のための電極部と送信手段とが一体化されているた
め、被検者の拘束感が著しく改善される。また、送信手
段と各電極部との間に従来のように信号ケーブルが存在
しないので、余分な接続点が排除され、このため長時間
に渡って安定して計測を行うことができ、よって信頼性
が向上する。In the biological signal measuring device of the present invention, since the electrode portion for measuring the biological signal and the transmitting means are integrated, the feeling of restraint of the subject is remarkably improved. In addition, since there is no signal cable between the transmission means and each electrode unit unlike the conventional case, an extra connection point is eliminated, and therefore stable measurement can be performed for a long time, and therefore reliable. The property is improved.
【０００９】また、検出部で検出された生体信号を無線
中継機を介して送信するようにしたので、生体信号を遠
距離に送信することができる。したがって、たとえばナ
ースステーション等の遠隔地において、被検者の生体信
号をリアルタイムでモニタリングすることが可能とな
る。つまり、被検者の拘束感を著しく改善し、なおかつ
長時間安定化されたテレメータシステムによって、被検
者の生体信号を被検者より遠く離れた場所においても計
測あるいはモニタリングができるようになる。Further, since the biomedical signal detected by the detector is transmitted via the wireless repeater, the biometric signal can be transmitted over a long distance. Therefore, it becomes possible to monitor the biological signal of the subject in real time at a remote location such as a nurse station. That is, the sense of restraint of the subject is remarkably improved, and the biological signal of the subject can be measured or monitored even at a place distant from the subject by the telemeter system stabilized for a long time.
【００１０】前記無線中継部は、前記第１の周波数の送
信波を受信する受信部と、この受信部で受信した送信波
の周波数を第２の周波数に変換する周波数変換部と、こ
の周波数変換部の出力信号を出力する送信部とにより構
成される。The radio relay unit receives a transmission wave of the first frequency, a frequency conversion unit that converts the frequency of the transmission wave received by the reception unit into a second frequency, and the frequency conversion unit. And a transmitter that outputs an output signal of the unit.
【００１１】前記無線中継部は、また、前記第１の周波
数の送信波を受信する受信部と、この受信部で受信した
送信波を復調する復調部と、この復調部の出力信号を第
２の周波数に変調する変調部と、この変調部の出力信号
を出力する送信部とにより構成してもよく、あるいは、
前記第１の周波数の送信波を受信する受信部と、この受
信部で受信した信号を復調する復調部と、、この復調部
の出力信号をデジタル信号に変換するアナログ／デジタ
ル変換部と、このアナログ／デジタル変換部の出力信号
を第２の周波数に変調する変調部と、この変調部の出力
信号を送信する送信部とにより構成してもよい。The radio relay section also receives a transmission wave of the first frequency, a demodulation section for demodulating the transmission wave received by the reception section, and a second output signal of the demodulation section. May be composed of a modulator that modulates to a frequency of, and a transmitter that outputs the output signal of this modulator, or
A receiver for receiving the transmission wave of the first frequency; a demodulator for demodulating the signal received by the receiver; an analog / digital converter for converting the output signal of the demodulator into a digital signal; It may be configured by a modulator that modulates the output signal of the analog / digital converter to the second frequency and a transmitter that transmits the output signal of the modulator.
【００１２】[0012]
【実施例】以下、本発明の実施例を図面を参照して具体
的に説明する。Embodiments of the present invention will be specifically described below with reference to the drawings.
【００１３】図２は本発明の一実施例に係る生体信号計
測装置を心電計に適用した例を表すもので、被検者１０
へ装着した状態を示している。この装置は、被検者１０
の胸部の測定部位に装着される３個の心電電極１１〜１
３と、被検者１０の腰へ装着される無線中継機１４、お
よび図３に示すような被検者１０とは離れた位置に設置
された心電図モニタ１５とにより構成されている。心電
電極１１〜１３はそれぞれ被検者１０の表面の電位変化
を検出し、心電図信号を取り出すもので、これら心電電
極１１〜１３により検出部が構成されている。FIG. 2 shows an example in which the biological signal measuring device according to one embodiment of the present invention is applied to an electrocardiograph.
It shows a state of being attached to. This device
Electrocardiographic electrodes 11 to 1 attached to the measurement site of the chest of the human
3, a wireless relay device 14 attached to the waist of the subject 10, and an electrocardiogram monitor 15 installed at a position distant from the subject 10 as shown in FIG. The electrocardiographic electrodes 11 to 13 each detect a potential change on the surface of the subject 10 and take out an electrocardiogram signal, and the electrocardiographic electrodes 11 to 13 constitute a detection unit.
【００１４】心電電極１１〜１３の各支持体は柔軟性を
有する樹脂、たとえばウレタン等により構成されてい
る。これら心電電極１１〜１３のうちの１つ、たとえば
心電電極１３の中には、図１に表すように送信機１６が
内蔵されている。この送信機１６の下部には電極板１９
が配設されている。電極板１９と送信機１６とは信号線
２０により電気的に接続されており、電極板１９により
検出された心電図信号は信号線２０を介して送信機１６
に直接に入力されるようになっている。電極板１９はた
とえば銀・塩化銀により形成されている。電極板１９と
被検者１０との間には電解質ゲル層２４が設けられ、電
極全体はこの電解質ゲル層２４の周囲に設けられた粘着
層２５によって被検者１０の胸部へ貼着されるようにな
っている。この粘着層２５および電解質ゲル層２４の表
面は、未使用時には図示しない皮膜により覆われ、保護
されている。Each support of the electrocardiographic electrodes 11 to 13 is made of a flexible resin such as urethane. As shown in FIG. 1, a transmitter 16 is built in one of the electrocardiographic electrodes 11 to 13, for example, the electrocardiographic electrode 13. An electrode plate 19 is provided below the transmitter 16.
Are arranged. The electrode plate 19 and the transmitter 16 are electrically connected by the signal line 20, and the electrocardiographic signal detected by the electrode plate 19 is transmitted via the signal line 20 by the transmitter 16.
It is designed to be directly input to. The electrode plate 19 is formed of, for example, silver / silver chloride. An electrolyte gel layer 24 is provided between the electrode plate 19 and the subject 10, and the entire electrode is attached to the chest of the subject 10 by an adhesive layer 25 provided around the electrolyte gel layer 24. It is like this. The surfaces of the adhesive layer 25 and the electrolyte gel layer 24 are covered and protected by a film (not shown) when not in use.
【００１５】他の心電電極１１、１２はそれぞれ図４に
示すように電解質ゲル層２４と同じ電解質ゲル層上に電
極板１９と同じ構成の電極板２１、２２を配設した構造
となっている。As shown in FIG. 4, the other electrocardiographic electrodes 11 and 12 each have a structure in which electrode plates 21 and 22 having the same structure as the electrode plate 19 are disposed on the same electrolyte gel layer as the electrolyte gel layer 24. There is.
【００１６】心電電極１３と他の心電電極１１、１２と
は、信号線１７、１８で接続されており、心電電極１
１、１２により検出された心電図信号はそれぞれ心電電
極１３内の送信機１６へ入力されるようになっている。
すなわち、送信機１６には心電電極１１〜１３により検
出された心電図信号が全て入力されるようになってい
る。なお、信号線１７、１８は柔軟性を有する樹脂、た
とえばウレタンにより形成された支持体２３により心電
電極１１〜１３と一体化されている。The electrocardiographic electrode 13 and the other electrocardiographic electrodes 11 and 12 are connected by signal lines 17 and 18.
The electrocardiographic signals detected by 1 and 12 are input to the transmitter 16 in the electrocardiographic electrode 13, respectively.
That is, all the electrocardiographic signals detected by the electrocardiographic electrodes 11 to 13 are input to the transmitter 16. The signal lines 17 and 18 are integrated with the electrocardiographic electrodes 11 to 13 by a support member 23 made of a flexible resin such as urethane.
【００１７】図５は心電電極１３内の送信機１６の回路
構成を表すものである。FIG. 5 shows a circuit configuration of the transmitter 16 in the electrocardiographic electrode 13.
【００１８】この送信機１６は、入力信号を所定のレベ
ルまで増幅して出力する増幅部２６と、この増幅部２６
の出力信号を送信に必要な周波数帯域（たとえば２００
ＭＨｚ）の変調波に変調する変調部２７と、この変調部
２７の出力を送信波２９として送信する送信部２８と、
これら増幅部２６、変調部２７および送信部２８の各部
へ必要な電力を供給する電源部３０とにより構成されて
いる。電源部３０は一次電池もしくは二次電池により構
成され、その他の増幅部２６、変調部２７および送信部
２８等の信号処理部は、たとえば１または複数個のＩＣ
（集積回路）チップに集積化されている。The transmitter 16 amplifies an input signal to a predetermined level and outputs the amplified signal, and the amplifier 26.
Frequency band required to transmit the output signal of
A modulator 27 that modulates a modulated wave of (MHz), a transmitter 28 that transmits the output of the modulator 27 as a transmitted wave 29,
The amplification unit 26, the modulation unit 27, and the transmission unit 28 are configured by a power supply unit 30 that supplies necessary power. The power supply unit 30 is composed of a primary battery or a secondary battery, and the other signal processing units such as the amplification unit 26, the modulation unit 27, and the transmission unit 28 are, for example, one or a plurality of ICs.
(Integrated circuit) Integrated on a chip.
【００１９】一方、無線中継機１４は、図６に示すよう
に、上記送信機１６から無線で送信された送信波２９を
受信する受信部３１と、この受信部３１の受信信号を送
信波２９とは異なる周波数（たとえば４００ＭＨｚ）に
周波数変換する周波数変換部３２と、この周波数変換部
３２の出力を電力増幅し、再び送信波３５として無線で
送信する送信部３３と、各部に電源を供給する電源部３
４とにより構成されている。電源部３４は送信機１６側
の電源部３０と同様の構成となっている。On the other hand, as shown in FIG. 6, the wireless repeater 14 receives a transmission wave 29 wirelessly transmitted from the transmitter 16 and a reception wave of the reception signal of the reception section 31. A frequency conversion unit 32 that converts the frequency to a frequency different from (for example, 400 MHz), a transmission unit 33 that amplifies the output of the frequency conversion unit 32 and wirelessly transmits again as a transmission wave 35, and supplies power to each unit. Power supply 3
4 and. The power supply unit 34 has the same configuration as the power supply unit 30 on the transmitter 16 side.
【００２０】図３に示した心電図モニタ１５は、アンテ
ナ１５ａを有しており、このアンテナ１５ａで受信した
送信波３５の信号処理を行う受信部３６と、この受信部
３６の受信信号を元の心電図信号に復調する復調部３７
と、この復調部３７から出力された心電図信号の表示を
行う表示部３８と、各部に電源を供給する電源部３９と
により構成されている。電源部３９は送信機１６側の電
源部３０と同様の構成となっている。The electrocardiogram monitor 15 shown in FIG. 3 has an antenna 15a, and a receiving unit 36 for performing signal processing of the transmission wave 35 received by the antenna 15a and an original received signal of the receiving unit 36. Demodulation unit 37 for demodulating into an electrocardiogram signal
And a display section 38 for displaying the electrocardiogram signal output from the demodulation section 37, and a power supply section 39 for supplying power to each section. The power supply unit 39 has the same configuration as the power supply unit 30 on the transmitter 16 side.
【００２１】次に、このように構成された本実施例の生
体信号計測装置の動作について説明する。Next, the operation of the biomedical signal measuring apparatus of this embodiment having the above configuration will be described.
【００２２】まず、被検者１０は無線中継機１４を腰に
装着するとともに、心電電極１１〜１３それぞれの図示
しない皮膜を剥がして電解質ゲル層２４および粘着層２
５を露出させる。次いで、粘着層２５の粘着性を利用し
て、図２に表したように自身の胸部等の測定部位に心電
電極１１〜１３を貼着させる。このようにして心電電極
１１〜１３が装着されると、各心電電極１１〜１３の電
解質ゲル層２４が被検者１０の測定部位の体表に密着し
てその電位変化を検出する。First, the examinee 10 wears the wireless repeater 14 on his waist and peels off the coating (not shown) of each of the electrocardiographic electrodes 11 to 13 to remove the electrolyte gel layer 24 and the adhesive layer 2.
Expose 5. Next, using the adhesive property of the adhesive layer 25, the electrocardiographic electrodes 11 to 13 are attached to the measurement site such as the chest of the user as shown in FIG. When the electrocardiographic electrodes 11 to 13 are mounted in this manner, the electrolyte gel layer 24 of each of the electrocardiographic electrodes 11 to 13 comes into close contact with the body surface of the measurement site of the subject 10 and the potential change is detected.
【００２３】ここで、心電電極１３では、電解質ゲル層
２４を介して電極板１９により検出された電位変化は、
心電図信号として信号線２０を介してこの心電電極１３
内の送信機１６へ入力される。他の２つの心電電極１
１、１２において検出された心電図信号もそれぞれ信号
線１７、１８を介して心電電極１３の送信機１６へ入力
される。Here, in the electrocardiographic electrode 13, the change in potential detected by the electrode plate 19 through the electrolyte gel layer 24 is
This electrocardiographic electrode 13 is used as an electrocardiographic signal via the signal line 20.
Is input to the transmitter 16 inside. The other two ECG electrodes 1
The electrocardiographic signals detected at 1 and 12 are also input to the transmitter 16 of the electrocardiographic electrode 13 via the signal lines 17 and 18, respectively.
【００２４】送信機１６に入力された各心電電極１１〜
１３からの心電図信号は、それぞれ増幅部２６において
所定のレベルまで増幅された後、変調部２７へ供給され
る。変調部２７に入力された心電図信号は、送信に必要
な周波数帯域（ここでは２００ＭＨｚ）に変調された後
に、送信部２８から送信波２９として無線で送信され
る。Each electrocardiographic electrode 11 input to the transmitter 16
The electrocardiographic signals from 13 are amplified to a predetermined level in the amplifier 26 and then supplied to the modulator 27. The electrocardiogram signal input to the modulator 27 is modulated to a frequency band (200 MHz here) required for transmission, and then is wirelessly transmitted as a transmission wave 29 from the transmitter 28.
【００２５】送信機１６から送信された送信波２９は、
無線中継機１４の受信部３１によって受信される。受信
部３１で受信された信号は周波数変換部３２で異なる周
波数（ここでは４００ＭＨｚ）に変換された後、送信部
３３へ供給される。送信部３３では、この信号を電力増
幅し、送信波３５として心電図モニタ１５へ向けて送信
する。The transmitted wave 29 transmitted from the transmitter 16 is
The signal is received by the receiving unit 31 of the wireless repeater 14. The signal received by the receiver 31 is converted to a different frequency (here, 400 MHz) by the frequency converter 32, and then supplied to the transmitter 33. The transmitter 33 amplifies the power of this signal and transmits it as a transmission wave 35 toward the electrocardiogram monitor 15.
【００２６】無線中継機１４から送信された送信波３５
は心電図モニタ１５の受信部３６で受信された後、復調
部３７へ入力され、ここにおいて心電図信号が復調され
る。この復調された心電図信号は表示部３８に入力さ
れ、この表示部３８において心電図波形が時々刻々表示
され、医師等によってモニタリングされる。The transmission wave 35 transmitted from the wireless repeater 14
Is received by the receiving unit 36 of the electrocardiogram monitor 15 and then input to the demodulating unit 37, where the electrocardiographic signal is demodulated. The demodulated electrocardiogram signal is input to the display unit 38, the electrocardiogram waveform is displayed on the display unit 38 every moment, and is monitored by a doctor or the like.
【００２７】本実施例の生体信号計測装置では、検出部
を構成する心電電極１１〜１３が支持体２３により一体
化されるとともに、送信機１６が１つの心電電極１３に
内蔵されている。すなわち、心電電極１１〜１３および
送信機１６が一体化された構造となっているので、被検
者１０にとっては従来に比べて拘束感が著しく改善され
る。しかも、従来のように送信機１６と心電電極１１〜
１３との間に信号ケーブルが存在しないので、余分な接
続点が排除されている。したがって、長時間に渡って安
定して計測が行われ、そのため信頼性が高くなる。In the biological signal measuring apparatus of this embodiment, the electrocardiographic electrodes 11 to 13 forming the detecting section are integrated by the support 23, and the transmitter 16 is built in one electrocardiographic electrode 13. .. That is, since the electrocardiographic electrodes 11 to 13 and the transmitter 16 are integrated, the sense of restraint of the subject 10 is significantly improved as compared with the conventional case. Moreover, as in the conventional case, the transmitter 16 and the electrocardiographic electrodes 11 to 11 are
Since there is no signal cable to and from 13, the extra connection point is eliminated. Therefore, stable measurement is performed over a long period of time, which increases reliability.
【００２８】また、送信機１６より送信された送信波２
９は、無線中継機１４で一度受信され、異なる周波数に
変換されて電力増幅された後、送信波３５として再び送
信される。したがって、心電図信号を遠距離に送信する
ことができ、被検者１０から遠く離れたベッドサイドあ
るいはナースステーション等において心電図モニタ１５
で受信することができる。このため、心電図モニタ１５
において、被検者１０の心電図信号がリアルタイムで表
示され、医師等によって監視することができる。Further, the transmission wave 2 transmitted from the transmitter 16
9 is once received by the wireless relay device 14, converted into a different frequency, amplified in power, and then transmitted again as the transmission wave 35. Therefore, the electrocardiogram signal can be transmitted over a long distance, and the electrocardiogram monitor 15 can be installed at a bedside or a nurse station far from the subject 10.
Can be received at. Therefore, the electrocardiogram monitor 15
In, the electrocardiogram signal of the subject 10 is displayed in real time and can be monitored by a doctor or the like.
【００２９】図８は本発明の他の実施例に係る無線中継
機１４の構成を表すものである。本実施例の無線中継機
１４では、受信部３１で受信した送信波２９を復調部４
０において復調し、元の心電図信号に戻し、再度変調部
４１においてＦＭ変調（周波数変調）し、送信波３５の
周波数を４００ＭＨｚとするものである。なお、図６と
同一構成部分については同一符号を付してその説明は省
略する。FIG. 8 shows the structure of a radio repeater 14 according to another embodiment of the present invention. In the wireless repeater 14 of this embodiment, the transmission wave 29 received by the receiving unit 31 is demodulated by the demodulating unit 4.
At 0, demodulation is performed, the original electrocardiogram signal is restored, and the modulating unit 41 performs FM modulation (frequency modulation) again to set the frequency of the transmission wave 35 to 400 MHz. The same components as those in FIG. 6 are designated by the same reference numerals and the description thereof will be omitted.
【００３０】本実施例の無線中継機１４では、周波数変
換部が不要であるので、不要なスプリアス放射がなくな
り、安定した送信を行うことができる。In the wireless repeater 14 of this embodiment, since the frequency converter is unnecessary, unnecessary spurious emission is eliminated and stable transmission can be performed.
【００３１】図９はさらに他の実施例に係る無線中継機
１４の構成を表すものである。本実施例では、図８の実
施例において、復調部４０と変調部４１との間に、Ａ／
Ｄ変換部（アナログ／デジタル変換部）４２を設け、復
調部４０の出力信号をデジタル信号に変換した後に変調
する構成としたものである。FIG. 9 shows the structure of a radio repeater 14 according to still another embodiment. In the present embodiment, in the embodiment of FIG. 8, A / A is provided between the demodulation unit 40 and the modulation unit 41.
A D conversion unit (analog / digital conversion unit) 42 is provided, and an output signal of the demodulation unit 40 is converted into a digital signal and then modulated.
【００３２】本実施例では、デジタル信号による送信波
３５を送信するようにしたので、多重伝送を実現できる
とともに、ノイズに強い安定した送信を行うことができ
る。なお、本実施例では、心電図モニタ１５側にはＤ／
Ａ変換部（デジタル／アナログ変換部）を設ける必要が
ある。In the present embodiment, since the transmission wave 35 by a digital signal is transmitted, multiplex transmission can be realized and stable transmission resistant to noise can be performed. In the present embodiment, D / on the ECG monitor 15 side.
It is necessary to provide an A converter (digital / analog converter).
【００３３】以上実施例を挙げて本発明を説明したが、
本発明は上記実施例に限定されるものではなく、その要
旨を変更しない範囲で種々変形可能である。The present invention has been described above with reference to the examples.
The present invention is not limited to the above embodiments, but can be variously modified without departing from the scope of the invention.
【００３４】たとえば、上記実施例においては心電図信
号を検出するための心電電極の数を３個とし、その誘導
数を１としたが、心電電極の数および誘導数はそれぞれ
任意である。たとえば心電電極１１〜１３相互の接続は
図１０に表すように、心電電極１１、１２をそれぞれ心
電電極１３から分岐させるようにしてもよい。また、た
とえば図１１および図１２に表すように、心電電極５
０、５１を追加して多誘導に拡張できることは言うまで
もない。この場合、各誘導毎に送信機１６から送信する
送信波の周波数を異ならせるとともに、無線中継機１４
においても各誘導毎にさらに異なる周波数で変換を行う
ようにすれば、互いに混信することなく送信することが
できる。For example, in the above embodiment, the number of electrocardiographic electrodes for detecting an electrocardiographic signal is three and the number of leads is one, but the number of electrocardiographic electrodes and the number of leads are arbitrary. For example, the electrocardiographic electrodes 11 to 13 may be connected to each other by branching the electrocardiographic electrodes 11 and 12 from the electrocardiographic electrode 13 as shown in FIG. In addition, as shown in FIGS. 11 and 12, for example, the electrocardiographic electrode 5
It goes without saying that 0, 51 can be added to expand to multiple inductions. In this case, the frequency of the transmission wave transmitted from the transmitter 16 is made different for each guidance, and the wireless repeater 14 is used.
Also in the above, if the conversion is performed with a different frequency for each lead, the leads can be transmitted without interference.
【００３５】また、送信機１６を含む心電電極１３およ
び他の心電電極１１、１２は、１回使用限りのディスポ
ーザブル品であることが衛生上あるいは取扱上最も望ま
しい。さらに経済的な面を考慮すれば、送信機１６は被
検者に接触することがないので、この送信機１６のみを
再使用できるように別体に構成し、心電電極１３に対し
て脱着できる構造とすることが好ましい。It is most desirable for hygiene or handling that the electrocardiographic electrode 13 including the transmitter 16 and the other electrocardiographic electrodes 11, 12 are disposable products that can be used only once. Further, in consideration of the economical aspect, the transmitter 16 does not come into contact with the subject. Therefore, the transmitter 16 is separately configured so that it can be reused, and is detached from the electrocardiographic electrode 13. It is preferable to have a structure that allows it.
【００３６】図１３はその具体的な構造を表すものであ
る。この例では、心電電極１３側と送信機１６側とに３
組のホック式コネクタ６１1 、６１2 、６１3 を設けた
ものである。図１４は送信機１６を心電電極１３から取
り外した状態を示している。FIG. 13 shows a concrete structure thereof. In this example, 3 are provided on the electrocardiographic electrode 13 side and the transmitter 16 side.
A pair of hook type connectors 61 1 , 61 2 , 61 3 are provided. FIG. 14 shows a state in which the transmitter 16 is removed from the electrocardiographic electrode 13.
【００３７】また、図１５は上記ホック式コネクタ６１
1 〜６１3 のうち、１組のホック式コネクタ６１2 のみ
を心電電極１３と送信機１６との間に設け、他の２組の
ホック式コネクタ６１1 、６１3 を、他の心電電極１
１、１２との間の信号線１７、１８の各先端部に設け、
かつ他の心電電極１１、１２それぞれに対応するコネク
タ（図示せず）を設けるものである。この構造であれ
ば、心電電極１１〜１３間の分離が可能となり、より取
扱いが便利となる。FIG. 15 shows the hook type connector 61.
1-61 of the three, a set of only hook-type connector 61 2 provided between the electrocardiogram electrode 13 and the transmitter 16, the other two sets of the hook-type connector 61 1, 61 3, other electrocardiograph Electrode 1
Provided at each tip of the signal lines 17 and 18 between 1 and 12,
In addition, a connector (not shown) corresponding to each of the other electrocardiographic electrodes 11 and 12 is provided. With this structure, the electrocardiographic electrodes 11 to 13 can be separated, and the handling becomes more convenient.
【００３８】なお、電源部３０、３４、３９としての電
池は寿命があるので、心電電極１１〜１３と同様にディ
スポーザブル扱いにした方が取扱上好ましい。Since the batteries as the power supply units 30, 34, 39 have a life, it is preferable to treat them as disposable like the electrocardiographic electrodes 11-13.
【００３９】また、上記実施例においては、本発明の生
体信号計測装置を心電計に適用した例について説明した
が、心電電極の皮膚密着部に集熱板を設け、サーミスタ
を装備することにより、このサーミスタの抵抗値の変化
を送信機を用いて電波にて送信すれば、心電図信号とと
もに体温信号も送信でき、複合的に適用することが可能
となる。Further, in the above embodiment, an example in which the biological signal measuring device of the present invention is applied to an electrocardiograph has been described. However, a heat collecting plate is provided at the skin contact portion of the electrocardiographic electrode and a thermistor is provided. Therefore, if the change in the resistance value of the thermistor is transmitted by radio waves using a transmitter, the body temperature signal can be transmitted together with the electrocardiogram signal, and it is possible to apply the combination in a complex manner.
【００４０】さらに上記実施例においては、送信波とし
て電波を用いた場合について説明したが、その他超音波
あるいは赤外線等によって送信することも可能であるこ
とは言うまでもない。Further, in the above embodiment, the case where a radio wave is used as a transmission wave has been described, but it goes without saying that it is also possible to transmit by using ultrasonic waves or infrared rays.
【００４１】[0041]
【発明の効果】以上説明したように本発明の生体信号計
測装置によれば、生体信号を検出する複数の電極部、こ
れら電極部により検出された生体信号を第１の周波数の
送信波として無線で送信する送信手段、およびこの送信
手段に電力を供給する電源部を有する検出部と、この検
出部から送信された送信波を受信し、前記第１の周波数
とは異なる第２の周波数の送信波を無線で送信する無線
中継部と、この無線中継部から送信された第２の周波数
の送信波を受信する受信手段、およびこの受信手段で受
信した受信波から生体信号を取り出して出力する出力手
段を有する出力部とを備えるようにしたので、被検者の
拘束感が著しく改善されるとともに、従来のように送信
部と各電極部との間に信号ケーブルが存在しないので、
余分な接続点が排除される。このため長時間に渡って安
定して計測を行うことができ、信頼性が向上する。ま
た、検出部で検出された生体信号を無線中継機を介して
送信するようにしたので、生体信号を遠距離に送信する
ことができる。したがって、ナースステーション等の遠
隔地において、被検者の生体信号をリアルタイムでモニ
タリングすることができるという効果がある。As described above, according to the biological signal measuring device of the present invention, a plurality of electrode portions for detecting a biological signal, and the biological signal detected by these electrode portions are wirelessly transmitted as a transmission wave of the first frequency. And a detection unit having a power supply unit for supplying electric power to the transmission unit and a transmission wave transmitted from the detection unit and transmitting a second frequency different from the first frequency. A wireless relay unit that wirelessly transmits a wave, a receiving unit that receives a transmitted wave of the second frequency transmitted from the wireless relay unit, and an output that extracts and outputs a biological signal from the received wave received by the receiving unit Since the output section having means is provided, the sense of restraint of the subject is significantly improved, and since there is no signal cable between the transmission section and each electrode section as in the conventional case,
Extra connection points are eliminated. Therefore, stable measurement can be performed for a long time, and reliability is improved. In addition, since the biological signal detected by the detection unit is transmitted via the wireless relay device, the biological signal can be transmitted over a long distance. Therefore, there is an effect that the biological signal of the subject can be monitored in real time at a remote location such as a nurse station.
【図１】本発明の一実施例に係る生体信号計測装置の送
信機を含む心電電極の構成を表す断面図である。FIG. 1 is a cross-sectional view showing a configuration of an electrocardiographic electrode including a transmitter of a biological signal measuring device according to an embodiment of the present invention.
【図２】図１の生体信号計測装置全体を被検体に装着し
た状態を表す構成図である。FIG. 2 is a configuration diagram showing a state in which the entire biological signal measuring device of FIG. 1 is attached to a subject.
【図３】図１の生体信号計測装置における心電図モニタ
を表す斜視図である。3 is a perspective view showing an electrocardiogram monitor in the biological signal measuring device of FIG. 1. FIG.
【図４】図１の生体信号計測装置の心電電極の接続状態
を表す平面図である。FIG. 4 is a plan view showing a connection state of electrocardiographic electrodes of the biological signal measuring device of FIG.
【図５】図１の生体信号計測装置の送信機の回路構成を
表すブロック図である。5 is a block diagram showing a circuit configuration of a transmitter of the biological signal measuring device of FIG.
【図６】図１の生体信号計測装置の無線中継機の回路構
成を表すブロック図である。6 is a block diagram showing a circuit configuration of a wireless repeater of the biological signal measuring apparatus of FIG.
【図７】図１の生体信号計測装置の心電図モニタの回路
構成を表すブロック図である。7 is a block diagram showing a circuit configuration of an electrocardiogram monitor of the biological signal measuring device of FIG.
【図８】本発明に係る無線中継機の他の回路構成を表す
ブロック図である。FIG. 8 is a block diagram showing another circuit configuration of the wireless relay device according to the present invention.
【図９】本発明に係る無線中継機のさらに他の回路構成
を表すブロック図である。FIG. 9 is a block diagram showing still another circuit configuration of the wireless repeater according to the present invention.
【図１０】本発明に係る心電電極の他の接続状態を表す
平面図である。FIG. 10 is a plan view showing another connection state of the electrocardiographic electrode according to the present invention.
【図１１】本発明に係る生体信号計測装置全体を被検体
に装着した状態を表す他の構成図である。FIG. 11 is another configuration diagram showing a state in which the entire biological signal measuring device according to the present invention is attached to a subject.
【図１２】本発明に係る生体信号計測装置全体を被検体
に装着した状態を表すさらに他の構成図である。FIG. 12 is still another configuration diagram showing a state in which the entire biological signal measuring device according to the present invention is attached to a subject.
【図１３】本発明に係る心電電極の構造を表す断面図で
ある。FIG. 13 is a cross-sectional view showing a structure of an electrocardiographic electrode according to the present invention.
【図１４】送信機を心電電極から分離した状態を表す断
面図である。FIG. 14 is a cross-sectional view showing a state in which a transmitter is separated from an electrocardiographic electrode.
【図１５】本発明に係る心電電極の他の構造を表す断面
図である。FIG. 15 is a cross-sectional view showing another structure of the electrocardiographic electrode according to the present invention.
１０ 被検体 １１〜１３ 心電電極 １４ 無線中継機 １５ 心電図モニタ １６ 送信機 10 Subject 11 to 13 Electrocardiographic Electrode 14 Wireless Repeater 15 Electrocardiogram Monitor 16 Transmitter
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小野田 政弘 神奈川県足柄上郡中井町井ノ口1500番地 テルモ株式会社内 (72)発明者 松井 克哉 神奈川県足柄上郡中井町井ノ口1500番地 テルモ株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masahiro Onoda 1500 Inoguchi, Nakai-cho, Ashigarashie-gun, Kanagawa Terumo Corporation (72) Inventor Katsuya Matsui 1500 Inoguchi, Nakai-cho, Ashigagami-gun, Kanagawa Terumo Corporation
Claims (1)
ら電極部により検出された生体信号を第１の周波数の送
信波として無線で送信する送信手段、およびこの送信手
段に電力を供給する電源部を有する検出部と、 この検出部から送信された送信波を受信し、前記第１の
周波数とは異なる第２の周波数の送信波を無線で送信す
る無線中継部と、 この無線中継部から送信された第２の周波数の送信波を
受信する受信手段、およびこの受信手段で受信した受信
波から生体信号を取り出して出力する出力手段を有する
出力部とを備えたことを特徴とする生体信号計測装置。1. A plurality of electrode parts for detecting a biomedical signal, a transmission means for wirelessly transmitting the biomedical signal detected by these electrode parts as a transmission wave of a first frequency, and a power supply for supplying electric power to the transmission means. A detection section having a section, a wireless relay section that receives a transmission wave transmitted from the detection section and wirelessly transmits a transmission wave of a second frequency different from the first frequency, and a wireless relay section from the wireless relay section. A biological signal comprising: a receiving unit that receives the transmitted transmitted wave of the second frequency; and an output unit that has an output unit that extracts and outputs a biological signal from the received wave received by the receiving unit. Measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00570492A JP3231375B2 (en) | 1992-01-16 | 1992-01-16 | Biological signal measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00570492A JP3231375B2 (en) | 1992-01-16 | 1992-01-16 | Biological signal measurement device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05298589A true JPH05298589A (en) | 1993-11-12 |
| JP3231375B2 JP3231375B2 (en) | 2001-11-19 |
Family
ID=11618506
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00570492A Expired - Fee Related JP3231375B2 (en) | 1992-01-16 | 1992-01-16 | Biological signal measurement device |
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1992
- 1992-01-16 JP JP00570492A patent/JP3231375B2/en not_active Expired - Fee Related
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| JP2012040414A (en) * | 2011-10-27 | 2012-03-01 | Olympus Medical Systems Corp | System for acquiring subject body's internal information |
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| CN112244854A (en) * | 2020-11-06 | 2021-01-22 | 中国人民解放军陆军军医大学第一附属医院 | Electrocardio monitoring devices |
| CN112244854B (en) * | 2020-11-06 | 2023-11-14 | 中国人民解放军陆军军医大学第一附属医院 | Electrocardiogram monitoring device |
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