JPH10151117A - Biosignal detection device - Google Patents
Biosignal detection deviceInfo
- Publication number
- JPH10151117A JPH10151117A JP8314356A JP31435696A JPH10151117A JP H10151117 A JPH10151117 A JP H10151117A JP 8314356 A JP8314356 A JP 8314356A JP 31435696 A JP31435696 A JP 31435696A JP H10151117 A JPH10151117 A JP H10151117A
- Authority
- JP
- Japan
- Prior art keywords
- living body
- supporting member
- body supporting
- biological signal
- load
- 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.)
- Withdrawn
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 230000006866 deterioration Effects 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 239000013307 optical fiber Substances 0.000 description 6
- 230000004907 flux Effects 0.000 description 3
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は心拍や血圧等の生体
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 for detecting biological signals such as heart rate and blood pressure without restriction.
【０００２】[0002]
【従来の技術】各種の生体信号を検出する装置として、
光ファイバーと発光素子及び受光素子を用いたものがあ
る。これは一端を発光素子に、他端を受光素子に接続し
た光ファイバーを生体の荷重がかかるところに配置し
て、該荷重変化に伴って光ファイバーのたわみ量が変化
するようにしておき、たわみ量の変化によって光ファイ
バーを通って受光素子に到達する光量が変化することを
利用して生体信号の検出を行う。2. Description of the Related Art As an apparatus for detecting various biological signals,
Some use an optical fiber, a light emitting element, and a light receiving element. This is to arrange the optical fiber with one end connected to the light-emitting element and the other end connected to the light-receiving element where the load of the living body is applied, so that the amount of deflection of the optical fiber changes with the change in the load, and the amount of deflection is set. The biological signal is detected by utilizing the fact that the amount of light reaching the light receiving element through the optical fiber changes due to the change.
【０００３】[0003]
【発明が解決しようとする課題】このものでは生体信号
を非拘束で検出することができて生体に対して刺激のな
いものとすることができ、また電磁気的な影響を生体に
与えてしまうこともなく、さらに生体の微振動について
高い感度を期待することができるが、光ファイバーに直
接荷重変化を加えるために、荷重が小さくなるようにし
たとしても、光ファイバーが折損しやすいものである点
で問題を有している。According to this method, a biological signal can be detected without restriction, so that the living body is not stimulated, and an electromagnetic influence is given to the living body. It is possible to expect higher sensitivity to micro-vibration of the living body, but the problem is that even if the load is reduced to directly apply a load change to the optical fiber, the optical fiber is easily broken. have.
【０００４】本発明はこのような点に鑑み為されたもの
であり、その目的とするところは生体信号検出部に荷重
負荷がかからず、該負荷によるところの生体信号検出部
の劣化が生じることがなくて長期にわたり安定した生体
信号検出を行うことができる生体信号検出装置を提供す
るにある。[0004] The present invention has been made in view of such a point, and it is an object of the present invention that a load is not applied to the biological signal detecting unit, and the biological signal detecting unit is deteriorated by the load. It is an object of the present invention to provide a biological signal detection device capable of performing stable biological signal detection for a long time without any problem.
【０００５】[0005]
【課題を解決するための手段】しかして本発明は、生体
の荷重を受ける生体支持部材と、該生体支持部材をばね
部材を介して支持している固定部材と、固定部材と生体
支持部材とのうちの一方に設けた磁石及び他方に設けた
コイルとを備えて、固定支持部材に対する生体支持部材
の位置変動をコイルから取り出して生体信号とするもの
であることに第１の特徴を有しており、生体の荷重を受
ける生体支持部材と、該生体支持部材をばね部材を介し
て支持している固定部材と、固定部材と生体支持部材と
のうちの一方に設けた磁石及び他方に設けた磁気抵抗素
子とを備えて、固定支持部材に対する生体支持部材の位
置変動を磁気抵抗素子から取り出して生体信号とするも
のであることに第２の特徴を有しており、生体の荷重を
受ける生体支持部材と、該生体支持部材をばね部材を介
して支持している固定部材と、固定部材と生体支持部材
とのうちの一方に設けた鉄芯及び他方に設けた差動トラ
ンスとを備えて、固定支持部材に対する生体支持部材の
位置変動を差動トランスから取り出して生体信号とする
ものであることに第３の特徴を有しており、生体の荷重
を受ける生体支持部材と、該生体支持部材をばね部材を
介して支持している固定部材と、固定部材と生体支持部
材とのうちの一方に設けた磁石及び他方に設けたホール
素子とを備えて、固定支持部材に対する生体支持部材の
位置変動をホール素子から取り出して生体信号とするも
のであることに第４の特徴を有しており、生体の荷重を
受ける生体支持部材と、該生体支持部材をばね部材を介
して支持している固定部材と、固定部材と生体支持部材
とのうちの一方に設けた信号発振手段及び他方に設けた
信号受信手段とを備えて、固定支持部材に対する生体支
持部材の位置変動を信号発信手段が発した信号を受ける
信号受信手段から取り出して生体信号とするものである
こと、特に受信信号のドップラー効果に基づいて生体信
号を検出するものであることに第５の特徴を有してお
り、さらに生体の荷重を受ける生体支持部材と、該生体
支持部材をばね部材を介して支持している固定部材と、
固定部材と生体支持部材とに対向させて配置した一対の
電極とを備えて、固定支持部材に対する生体支持部材の
位置変動を電極間の静電容量変化として検出して生体信
号とするものであることに第６の特徴を有している。According to the present invention, there is provided a living body supporting member for receiving a load of a living body, a fixing member supporting the living body supporting member via a spring member, and a fixing member and a living body supporting member. The first characteristic is that a change in the position of the living body support member with respect to the fixed support member is taken out from the coil and provided as a biological signal by providing a magnet provided on one of the above and a coil provided on the other. A living body supporting member receiving a load of a living body, a fixing member supporting the living body supporting member via a spring member, a magnet provided on one of the fixing member and the living body supporting member, and a magnet provided on the other. The second characteristic is that the position change of the living body support member with respect to the fixed support member is taken out from the magnetoresistive element and becomes a biological signal, and the load of the living body is received. Biological support A fixed member supporting the living body supporting member via a spring member, an iron core provided on one of the fixed member and the living body supporting member, and a differential transformer provided on the other, and fixed. A third feature is that a position change of the living body supporting member with respect to the supporting member is taken out from the differential transformer to be a living body signal, and the living body supporting member that receives a load of a living body, A position change of the living body supporting member with respect to the fixed supporting member, comprising: a fixing member supported via a spring member; a magnet provided on one of the fixing member and the living body supporting member; and a Hall element provided on the other. Has a fourth feature in that a biological signal is taken out from the Hall element, and a living body supporting member that receives a load of a living body and a fixed body that supports the living body supporting member via a spring member. Parts and fixing A signal receiving means provided on one of the material and the living body supporting member, and a signal receiving means provided on the other side, and receiving a signal generated by the signal transmitting means for changing the position of the living body supporting member with respect to the fixed supporting member. The fifth feature is that the biological signal is taken out from the receiving means and is used as a biological signal, in particular, the biological signal is detected based on the Doppler effect of the received signal. A supporting member, a fixing member supporting the living body supporting member via a spring member,
It comprises a fixed member and a pair of electrodes arranged to face the living body support member, and detects a change in the position of the living body support member with respect to the fixed support member as a change in capacitance between the electrodes to produce a biological signal. Particularly, it has a sixth feature.
【０００６】いずれにおいても生体信号を取り出す部材
は、対となる部材と非接触であるために、生体荷重が生
体信号を取り出す部材に負荷として加わることがない。In any case, since the member for extracting the biological signal is not in contact with the member to be paired, no biological load is applied to the member for extracting the biological signal.
【０００７】[0007]
【発明の実施の形態】本発明の実施の形態の一例につい
て説明すると、図１において、１は生体の一部あるいは
全部を受ける生体支持部材であり、該生体支持部材１は
固定部材２からばね部材（図示せず）によって浮かされ
た状態で支持されている。そして生体支持部材１の下面
にはコイル４が配されており、固定部材２の上面にはコ
イル４内に位置することになる磁石３が配されている。
生体荷重Ｍを生体支持部材１に加えたならば、ばね部材
に抗して生体支持部材１は沈み、さらに心拍等による荷
重の微小変動によって生体支持部材１は微小変動する。
この時、磁石３との間でムービングコイルを構成してい
るコイル４は、磁石３の磁束の中でその位置を変化させ
るために、コイル４を流れる電流が変化することから、
この電流変化を生体信号として検出することができる。
もちろん、生体支持部材１側に磁石３を、固定部材２側
にコイル４を配してもよい。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described. In FIG. 1, reference numeral 1 denotes a living body supporting member for receiving a part or all of a living body. It is supported in a floating state by a member (not shown). A coil 4 is arranged on the lower surface of the living body supporting member 1, and a magnet 3 to be located inside the coil 4 is arranged on an upper surface of the fixing member 2.
When the living body load M is applied to the living body supporting member 1, the living body supporting member 1 sinks against the spring member, and further, the living body supporting member 1 slightly fluctuates due to a minute change in the load due to a heartbeat or the like.
At this time, since the coil 4 constituting the moving coil with the magnet 3 changes its position in the magnetic flux of the magnet 3, the current flowing through the coil 4 changes.
This change in current can be detected as a biological signal.
Of course, the magnet 3 may be provided on the living body support member 1 side, and the coil 4 may be provided on the fixed member 2 side.
【０００８】図２に示すものでは、磁石３を生体支持部
材１側に設けるとともに、固定部材２側に磁気抵抗素子
５を配している。心拍等による荷重の微小変動によって
生体支持部材１が微小変動する時、磁石３の移動による
磁束の変化に伴って磁気抵抗素子５の抵抗値が変化する
ために、該抵抗値変化を検出することで生体信号を得る
ことができる。In FIG. 2, the magnet 3 is provided on the living body supporting member 1 side, and the magnetoresistive element 5 is provided on the fixing member 2 side. When the living body supporting member 1 minutely changes due to a minute change in load due to a heartbeat or the like, the resistance value of the magnetoresistive element 5 changes according to a change in the magnetic flux due to the movement of the magnet 3, and therefore, the change in the resistance value is detected. Thus, a biological signal can be obtained.
【０００９】図３に示すものでは、生体支持部材１の下
面に鉄芯６を設け、固定部材２側に一次コイル７１と二
次コイル７２とからなる差動トランス７を設けて、一次
コイル７１に交流を流している。心拍等による荷重の微
小変動によって生体支持部材１が微小変動する時、鉄芯
６の移動によって二次コイル７２の出力電圧が変化する
ために、該出力電圧変化を基に生体信号を検出すること
ができる。In FIG. 3, an iron core 6 is provided on the lower surface of the living body supporting member 1, and a differential transformer 7 including a primary coil 71 and a secondary coil 72 is provided on the fixed member 2 side. There is an exchange. Since the output voltage of the secondary coil 72 changes due to the movement of the iron core 6 when the living body supporting member 1 minutely changes due to a minute change in the load due to a heartbeat or the like, the biological signal is detected based on the output voltage change. Can be.
【００１０】図４に示すものでは、磁石３を生体支持部
材１側に設けるとともに、固定部材２側にホール素子８
を配している。心拍等による荷重の微小変動によって生
体支持部材１が微小変動する時、磁石３の移動による磁
束の変化に伴ってホール素子８の出力電圧が変化するた
めに、該出力電圧変化を基に生体信号を検出することが
できる。In FIG. 4, the magnet 3 is provided on the living body supporting member 1 side, and the Hall element 8 is provided on the fixing member 2 side.
Is arranged. When the living body supporting member 1 minutely changes due to a minute change in the load due to a heartbeat or the like, the output voltage of the Hall element 8 changes with the change in the magnetic flux due to the movement of the magnet 3. Can be detected.
【００１１】図５においては、生体支持部材１の下面に
信号発振手段９を、固定部材２の上面に信号発信手段９
が発した信号を受ける信号受信手段１０を設けている。
ここにおける信号発振手段９としては、レーザー光を出
力するもの、電波を出力するもの、超音波を出力するも
のなどを用いることができ、信号受信手段１０は用いる
信号の種類に対応したものを使用する。心拍等による荷
重の微小変動によって生体支持部材１が微小変動する
時、信号発振手段９の移動に伴って信号受信手段１０が
受ける信号周波数がドップラー効果によって変化するこ
とから、この周波数変化を基に生体信号を検出すること
ができる。In FIG. 5, the signal oscillating means 9 is provided on the lower surface of the living body supporting member 1 and the signal transmitting means 9 is provided on the upper surface of the fixing member 2.
Is provided with a signal receiving means 10 for receiving the signal emitted by the device.
As the signal oscillating means 9, one that outputs laser light, one that outputs radio waves, one that outputs ultrasonic waves, or the like can be used. The signal receiving means 10 uses one that corresponds to the type of signal used. I do. When the living body supporting member 1 minutely changes due to a minute change in load due to a heartbeat or the like, the signal frequency received by the signal receiving unit 10 changes due to the movement of the signal oscillating unit 9 due to the Doppler effect. A biological signal can be detected.
【００１２】図６に示すものでは、固定部材２と生体支
持部材１とに一対の電極１１，１１を対向配置して両電
極１１，１１間の静電容量を検出することができるよう
にしており、心拍等による荷重の微小変動によって生体
支持部材１が微小変動する時、電極１１，１１の間隔の
変化によって静電容量が変化するために、静電容量変化
を基に生体信号を検出することができる。In FIG. 6, a pair of electrodes 11, 11 are arranged opposite to the fixed member 2 and the living body supporting member 1 so that the capacitance between the electrodes 11, 11 can be detected. When the living body supporting member 1 minutely changes due to a minute change in load due to a heartbeat or the like, since the capacitance changes due to a change in the interval between the electrodes 11, the biological signal is detected based on the change in the capacitance. be able to.
【００１３】[0013]
【発明の効果】以上のように請求項１〜請求項７にかか
る各発明は、生体信号を取り出す部材が対となる部材と
非接触のものであるために、生体信号を取り出す部材に
生体荷重が負荷として加わることがなくて、該負荷によ
るところの劣化や破損がないものであり、このために長
期にわたり安定した生体信号検出を行うことができるも
のである。As described above, in each of the inventions according to claims 1 to 7, since the member for extracting the biological signal is in non-contact with the member to be paired, the member for extracting the biological signal is placed on the member for extracting the biological signal. Is not applied as a load, and there is no deterioration or breakage due to the load. Therefore, a stable biological signal can be detected for a long period of time.
【図１】本発明の実施の形態の一例を示す概略断面図で
ある。FIG. 1 is a schematic sectional view showing an example of an embodiment of the present invention.
【図２】同上の他例の概略断面図である。FIG. 2 is a schematic sectional view of another example of the above.
【図３】更に他例の概略断面図である。FIG. 3 is a schematic sectional view of still another example.
【図４】別の例の概略断面図である。FIG. 4 is a schematic sectional view of another example.
【図５】更に別の例の概略断面図である。FIG. 5 is a schematic sectional view of still another example.
【図６】異なる例の概略断面図である。FIG. 6 is a schematic sectional view of another example.
１ 生体支持部材 ２ 固定部材 ３ 磁石 ４ コイル DESCRIPTION OF SYMBOLS 1 Biological support member 2 Fixation member 3 Magnet 4 Coil
Claims (7)
生体支持部材をばね部材を介して支持している固定部材
と、固定部材と生体支持部材とのうちの一方に設けた磁
石及び他方に設けたコイルとを備えて、固定支持部材に
対する生体支持部材の位置変動をコイルから取り出して
生体信号とするものであることを特徴とする生体信号検
出装置。1. A living body supporting member receiving a load of a living body, a fixing member supporting the living body supporting member via a spring member, a magnet provided on one of the fixing member and the living body supporting member, and the other. A biological signal detection device comprising: a coil provided in the biological signal detecting device;
生体支持部材をばね部材を介して支持している固定部材
と、固定部材と生体支持部材とのうちの一方に設けた磁
石及び他方に設けた磁気抵抗素子とを備えて、固定支持
部材に対する生体支持部材の位置変動を磁気抵抗素子か
ら取り出して生体信号とするものであることを特徴とす
る生体信号検出装置。2. A living body supporting member receiving a load of a living body, a fixing member supporting the living body supporting member via a spring member, a magnet provided on one of the fixing member and the living body supporting member, and the other. A biological signal detection device comprising: a magnetoresistive element provided in the apparatus; wherein a position change of the living body support member with respect to the fixed support member is extracted from the magnetoresistive element to obtain a biological signal.
生体支持部材をばね部材を介して支持している固定部材
と、固定部材と生体支持部材とのうちの一方に設けた鉄
芯及び他方に設けた差動トランスとを備えて、固定支持
部材に対する生体支持部材の位置変動を差動トランスか
ら取り出して生体信号とするものであることを特徴とす
る生体信号検出装置。3. A living body supporting member receiving a load of a living body, a fixing member supporting the living body supporting member via a spring member, an iron core provided on one of the fixing member and the living body supporting member, and A biological signal detection device comprising: a differential transformer provided on the other side; wherein a position change of the living body support member with respect to the fixed support member is taken out from the differential transformer to be a biological signal.
生体支持部材をばね部材を介して支持している固定部材
と、固定部材と生体支持部材とのうちの一方に設けた磁
石及び他方に設けたホール素子とを備えて、固定支持部
材に対する生体支持部材の位置変動をホール素子から取
り出して生体信号とするものであることを特徴とする生
体信号検出装置。4. A living body supporting member receiving a load of a living body, a fixing member supporting the living body supporting member via a spring member, a magnet provided on one of the fixing member and the living body supporting member, and the other. A biological signal detecting device comprising: a Hall element provided in the apparatus; wherein a position change of the living body supporting member with respect to the fixed supporting member is taken out from the Hall element to obtain a biological signal.
生体支持部材をばね部材を介して支持している固定部材
と、固定部材と生体支持部材とのうちの一方に設けた信
号発振手段及び他方に設けた信号受信手段とを備えて、
固定支持部材に対する生体支持部材の位置変動を信号発
信手段が発した信号を受ける信号受信手段から取り出し
て生体信号とするものであることを特徴とする生体信号
検出装置。5. A living body supporting member receiving a load of a living body, a fixing member supporting the living body supporting member via a spring member, and a signal oscillating means provided on one of the fixing member and the living body supporting member. And signal receiving means provided on the other side,
A biological signal detecting device, wherein a position change of a living body supporting member with respect to a fixed supporting member is taken out from a signal receiving means for receiving a signal generated by a signal transmitting means to obtain a biological signal.
体信号を検出するものであることを特徴とする請求項５
記載の生体信号検出装置。6. The apparatus according to claim 5, wherein a biological signal is detected based on a Doppler effect of a received signal.
The biological signal detection device according to claim 1.
生体支持部材をばね部材を介して支持している固定部材
と、固定部材と生体支持部材とに対向させて配置した一
対の電極とを備えて、固定支持部材に対する生体支持部
材の位置変動を電極間の静電容量変化として検出して生
体信号とするものであることを特徴とする生体信号検出
装置。7. A living body supporting member receiving a load of a living body, a fixing member supporting the living body supporting member via a spring member, and a pair of electrodes arranged to face the fixing member and the living body supporting member. A biological signal detecting device for detecting a change in the position of the living body supporting member with respect to the fixed supporting member as a change in capacitance between the electrodes to generate a biological signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8314356A JPH10151117A (en) | 1996-11-26 | 1996-11-26 | Biosignal detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8314356A JPH10151117A (en) | 1996-11-26 | 1996-11-26 | Biosignal detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10151117A true JPH10151117A (en) | 1998-06-09 |
Family
ID=18052353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8314356A Withdrawn JPH10151117A (en) | 1996-11-26 | 1996-11-26 | Biosignal detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10151117A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008139583A1 (en) * | 2007-05-10 | 2008-11-20 | Advanced Medical Inc. | Device for detecting vibration in living body and device for examining physiological state of the living body using the same |
| JP2012527290A (en) * | 2009-05-18 | 2012-11-08 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Heart rate measuring device |
| CN103405093A (en) * | 2013-07-30 | 2013-11-27 | 华中科技大学 | Interactive throw pillow robot |
| WO2015004754A1 (en) * | 2013-07-10 | 2015-01-15 | 株式会社日立製作所 | Sphygmomanometer system |
-
1996
- 1996-11-26 JP JP8314356A patent/JPH10151117A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008139583A1 (en) * | 2007-05-10 | 2008-11-20 | Advanced Medical Inc. | Device for detecting vibration in living body and device for examining physiological state of the living body using the same |
| JP2012527290A (en) * | 2009-05-18 | 2012-11-08 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Heart rate measuring device |
| WO2015004754A1 (en) * | 2013-07-10 | 2015-01-15 | 株式会社日立製作所 | Sphygmomanometer system |
| JP6031607B2 (en) * | 2013-07-10 | 2016-11-24 | 株式会社日立製作所 | Blood pressure measurement system |
| US10588521B2 (en) | 2013-07-10 | 2020-03-17 | Hitachi, Ltd. | Sphygmomanometer system |
| CN103405093A (en) * | 2013-07-30 | 2013-11-27 | 华中科技大学 | Interactive throw pillow robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20040203 |