WO2019073648A1 - Biological signal sensor - Google Patents

Biological signal sensor Download PDF

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Publication number
WO2019073648A1
WO2019073648A1 PCT/JP2018/026795 JP2018026795W WO2019073648A1 WO 2019073648 A1 WO2019073648 A1 WO 2019073648A1 JP 2018026795 W JP2018026795 W JP 2018026795W WO 2019073648 A1 WO2019073648 A1 WO 2019073648A1
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Prior art keywords
biological signal
main surface
signal sensor
detection electrodes
living body
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PCT/JP2018/026795
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French (fr)
Japanese (ja)
Inventor
友祐 吉田
木原　高栄
中尾　元保
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株式会社村田製作所
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Application filed by 株式会社村田製作所 filed Critical 株式会社村田製作所
Priority to CN201890001274.4U priority Critical patent/CN213309802U/en
Publication of WO2019073648A1 publication Critical patent/WO2019073648A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
    • A61B5/296—Bioelectric electrodes therefor specially adapted for particular uses for electromyography [EMG]

Definitions

  • the present invention relates to a biological signal sensor that is brought into contact with a living body to acquire a biological signal.
  • Patent Document 1 a myoelectric sensor (a biological signal sensor) in which a plurality of planar electrodes are arranged in contact with each other in a planar casing is used.
  • both the housing of the myoelectric sensor and the electrodes are planar, and when the myoelectric sensor is in proximity to a rounded living body, the contact area can not be secured widely. There is a possibility that the signal can not be measured reliably.
  • an object of the present invention is to provide a structure which secures a wide contact area to a living body and efficiently acquires a stable biological signal.
  • One aspect of the biological signal sensor of the present invention is a housing having a first main surface disposed in proximity to a living body at the time of measuring a biological signal, and a second main surface opposite to the first main surface, And a plurality of detection electrodes provided on one main surface.
  • the first main surface is elliptically curved such that the center is recessed from the outside to the inside of the housing with respect to the end.
  • the biological signal sensor can be reliably brought into contact with the living body when measuring the biological signal, and the stability of the measurement is improved.
  • the plurality of detection electrodes in one aspect of the biological signal sensor of the present invention be configured to protrude in a first direction which is a thickness direction of a housing.
  • the plurality of detection electrodes are in more intimate contact with the living body, thereby further improving the measurement stability.
  • a plurality of detections are performed when a direction connecting the both ends protruding due to the curvature of the first main surface is a second direction and a direction orthogonal to the second direction is a third direction.
  • the electrode preferably has a length in the second direction longer than a length in the third direction.
  • the biological signal from the muscle fiber can be efficiently received by the direction of the muscle fiber being orthogonal to the second direction.
  • the plurality of detection electrodes in one aspect of the biological signal sensor of the present invention are preferably disposed at positions orthogonal to the third direction.
  • the biosignals when the biosignal sensor is used as an myoelectric sensor, the biosignals can be received more accurately by arranging the plurality of detection electrodes in a direction orthogonal to the direction in which the muscle fibers extend. .
  • the second main surface is preferably curved so that the center of the end protrudes from the inside to the outside of the housing.
  • the case of the biological signal sensor when the case of the biological signal sensor is fixed with a rubber band or the like at the time of measurement of the biological signal, the case can be fixed more reliably.
  • At least one of the plurality of detection electrodes in one aspect of the biosignal sensor of the present invention is formed so that the surface in contact with the living body is curved in an elliptical shape.
  • One aspect of a biological signal sensor includes a housing having a first main surface disposed in proximity to a living body when measuring a biological signal, and a second main surface opposite to the first main surface, And a plurality of detection electrodes provided on one main surface. At least one of the plurality of detection electrodes is formed to be elliptically curved such that the surface in contact with the living body is concaved inward from the outside of the detection electrode at the center with respect to the end.
  • the plurality of detection electrodes when measuring the biological signal, the plurality of detection electrodes can be reliably brought into contact with the living body, and the stability of the measurement is improved.
  • FIG. 1 is an external perspective view from the first main surface 101 side of a biological signal sensor 10 according to a first embodiment of the present invention.
  • FIG. 2A is a schematic view of the biological signal sensor 10 according to the first embodiment of the present invention
  • FIG. 2B is a schematic view of the biological signal sensor 10 as viewed from the side.
  • FIG. 3 is an image diagram in which the biological signal sensor 10 according to the first embodiment of the present invention is brought into contact with a living body 20.
  • FIG. 4A is a plan view of the biological signal sensor 10 according to the first embodiment of the present invention as viewed from the first main surface 101 side
  • FIG. 4B is a plan view of the biological signal sensor 10. It is a side outline figure in B line.
  • FIG. 4A is a plan view of the biological signal sensor 10 according to the first embodiment of the present invention as viewed from the first main surface 101 side
  • FIG. 4B is a plan view of the biological signal sensor 10. It is a side outline figure in B line.
  • FIG. 4A is
  • FIG. 5A is a plan view of the biological signal sensor 10A according to the second embodiment of the present invention as viewed from the first main surface 101 side
  • FIG. 5B is a plan view of the biological signal sensor 10A
  • FIG. 5 (C) is a side schematic view of the biosignal sensor 10A taken along the line C-C
  • FIG. 6A is a plan view of the biological signal sensor 10B according to the third embodiment of the present invention as viewed from the first main surface 101B side
  • FIG. 6B is a plan view of the biological signal sensor 10B. It is a side outline figure in B line.
  • FIG. 1 is an external perspective view from the first main surface 101 side of a biological signal sensor 10 according to a first embodiment of the present invention.
  • FIG. 2A is a schematic view of the biological signal sensor 10 according to the first embodiment of the present invention
  • FIG. 2B is a schematic view of the biological signal sensor 10 as viewed from the side.
  • FIG. 3 is an image diagram in which the biological signal sensor 10 according to the first embodiment of the present invention is brought into contact with a living body 20.
  • FIG. 4A is a plan view of the biological signal sensor 10 according to the first embodiment of the present invention as viewed from the first main surface 101 side
  • FIG. 4B is a plan view of the biological signal sensor 10. It is a side outline figure in B line.
  • the biological signal sensor 10 includes a housing 100 and a plurality of detection electrodes 151.
  • the housing 100 includes a first major surface 101, a second major surface 102, and four side surfaces connecting the first major surface 101 and the second major surface 102, which are arranged to be spaced apart from each other.
  • the first major surface 101 includes corner portions CR1, CR2, CR3, and CR4.
  • the housing 100 and the detection electrode 151 are both rigid.
  • the housing 100 is preferably insulating.
  • the detection electrode 151 is preferably, for example, a titanium compound.
  • the thickness direction of the housing 100 is a first direction
  • the short direction of the housing 100 is a second direction
  • the longitudinal direction is a third direction.
  • the opposite sides in the second direction are parallel
  • the opposite sides in the third direction are parallel.
  • the second direction and the third direction are orthogonal to each other.
  • the first major surface 101 has a shape that is recessed from the outside to the inside at a substantially central point in the second direction, and is curved in an elliptical shape, for example.
  • the shape of the first main surface 101 of the housing 100 and the shape of the detection electrode 151 are more specifically described with reference to FIGS. 2A and 2B.
  • the plane connecting the corner portions CR1, CR2, CR3 and CR4 in the first major surface 101 is taken as a reference plane BP.
  • a central point between the corner CR1 and the corner CR2 in the second direction of the reference plane BP is a middle point MP1.
  • a central point between the corner CR3 and the corner CR4 in the second direction of the reference plane BP is taken as a middle point MP2.
  • a straight line connecting the middle point MP1 and the middle point MP2 is taken as a middle line ML.
  • the first major surface 101 is a curved elliptical arc-shaped surface that is most concaved at the position where the above-described midline ML is projected to the first major surface 101.
  • FIG. 2B is a schematic side view of the biological signal sensor 10 viewed from the side including the first direction and the second direction including the corner portions CR1 and CR2.
  • the first major surface 101 has a concaved-curved elliptical arc shape at the midpoint MP1 in the second direction. More specifically, in the first direction, the distance between the reference plane BP and the first major surface 101 is the longest at the location of the midpoint MP1, and becomes shorter as it approaches both ends.
  • FIG. 3 is an image diagram in which the biological signal sensor 10 is specifically brought into contact with the two arm portions of the living body 20.
  • the first major surface 101 of the housing 100 is brought into contact with the roundness of the two arms of the living body 20.
  • the biological signal sensor 10 (the housing 100) is brought into contact so that the direction in which the two arms extend is parallel to the third direction of the biological signal sensor 10.
  • the first major surface 101 is curved, the curved surface of the first major surface 101 and the curved surface due to the roundness of the living body 20 become substantially parallel to each other, and the first main surface of the housing 100
  • the face 101 can be in more intimate contact with the living body 20.
  • the living body in the present invention is a generic term for living things as living things. For example, human bodies, animals, plants and the like.
  • the living body to be detected is generally rounded, the curved elliptical arc shape of the housing 100 is efficiently adapted to the living body.
  • the biosignal sensor 10 can measure a biosignal more reliably.
  • FIG. 4A is a plan view of the biological signal sensor 10 as viewed from the first main surface 101 side.
  • FIG. 4B is a schematic side view of the biosignal sensor 10 taken along line BB in FIG. 4A.
  • the plurality of detection electrodes 151 are formed on the first main surface 101 of the housing 100.
  • the plurality of detection electrodes 151 are arranged substantially equally along the third direction on the first major surface 101.
  • the plurality of detection electrodes 151 are formed to protrude from the first major surface 101. Top surfaces 155 (surfaces facing the first major surface 101) of the plurality of detection electrodes 151 are planar.
  • the contact area of the detection electrode 151 to the living body 20 is increased, and a stable biological signal can be obtained.
  • the top surface 155 of the plurality of sensing electrodes 151 is the surface of the living body 20. It is pushed in and abuts.
  • the contact area can be reliably obtained, and the biological signal can be received more stably.
  • the top surfaces 155 of the plurality of detection electrodes 151 are planar, the manufacture of the detection electrodes 151 is easy.
  • the plurality of detection electrodes 151 have a shape that is long in the second direction. As a result, the contact area at one location in the extending direction of the muscle fibers can be increased, and the biological signal can be received at a further stable high level.
  • the biological signal sensor 10 is wound around the living body 20. In this case, it is possible to wind easily and has the effect of being hard to shift.
  • FIG. 5A is a plan view of the biological signal sensor 10A according to the second embodiment of the present invention as viewed from the first main surface 101 side
  • FIG. 5B is a plan view of the biological signal sensor 10A
  • FIG. 5 (C) is a side schematic view of the biosignal sensor 10A taken along the line C-C.
  • the biological signal sensor 10A according to the second embodiment is different from the biological signal sensor 10 according to the first embodiment, The difference is that the detection electrode 152A is provided.
  • the other configuration of the biological signal sensor 10A is the same as that of the biological signal sensor 10, and the description of the same parts will be omitted.
  • the biological signal sensor 10A includes a plurality of detection electrodes 151 and a detection electrode 152A.
  • the plurality of detection electrodes 151 and the detection electrodes 152A are arranged substantially equally on the first major surface 101.
  • the detection electrode 151 and the detection electrode 152A are formed to protrude from the first major surface 101.
  • the top surface 155 (surface facing the first major surface 101) of the detection electrode 151 is a flat surface.
  • the top surface 156 of the detection electrode 152A is a curved elliptical arc-shaped surface in which the center point of the detection electrode 152A in the second direction is most recessed toward the first main surface 101. .
  • the biological signal sensor 10A having such a configuration, it can be stably brought into contact with the living body 20, and the biological signal can be efficiently acquired. In addition, depending on the shape of the living body 20, biological signals can be acquired more efficiently.
  • FIG. 6A is a plan view of the biological signal sensor 10B according to the third embodiment of the present invention as viewed from the first main surface 101B side
  • FIG. 6B is a plan view of the biological signal sensor 10B. It is a side outline figure in B line.
  • the biological signal sensor 10B according to the third embodiment is different from the biological signal sensor 10 according to the first embodiment in a plurality of detection electrodes 151B. It differs in the point of having and the shape of 1st main surface 101B and 2nd main surface 102B.
  • the other configuration of the biological signal sensor 10B is the same as that of the biological signal sensor 10, and the description of the same parts will be omitted.
  • the biological signal sensor 10B includes a plurality of detection electrodes 151B.
  • the detection electrode 151B has a shape in which the length in the second direction is longer than that of the detection electrode 151 of the first embodiment. More specifically, the length of the detection electrode 151B is substantially the same as the length in the second direction of the housing 100B.
  • the detection electrode 151B is formed on the first main surface 101B of the biological signal sensor 10B.
  • the top surface 157 of the detection electrode 151B is a curved elliptical arc-shaped surface in which the center point of the detection electrode 151B in the second direction is most recessed toward the first major surface 101B.
  • the first main surface 101B and the second main surface 102B of the biological signal sensor 10B are flat.
  • the length in the second direction of the detection electrode 151B is long and curved in an elliptic arc shape. Therefore, the contact with the living body 20 can be stabilized, and the biological signal can be efficiently acquired.
  • the configuration provided with three detection electrodes is shown, but any number may be provided as long as the configuration can detect a biological signal.
  • one of the detection electrodes is a ground electrode to be grounded, and the remaining two detection electrodes are It may be used as a detection electrode.
  • casing 100 in each above-mentioned embodiment are R-chamfered. Therefore, the stimulation when the biological signal sensor contacts the living body can be alleviated.
  • BP reference surface CR1, CR2, CR3, CR4: corner portion ML: midline MP1, MP2: middle point R: radius
  • 10A, 10B biological signal sensor 20: living body 100, 100B: housing 101, 101B: first 1 main surface 102, 102B ... second main surface 151, 151B, 152A ... detection electrode 155, 156, 157 ... top surface

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Abstract

This biological signal sensor (10) is provided with: a case (100) having a first main surface (101) that is placed near a living body (20) during measurement of a biological signal, and a second main surface (102) on the side opposite the first main surface (101); and a plurality of detection electrodes (151) provided on the first main surface (101). The first main surface (101) is elliptically curved so that the center, relative to the edge, is recessed from the outside of the case (100) to the inside thereof.

Description

生体信号センサBiological signal sensor
　この発明は、生体に接触させて生体信号を取得する、生体信号センサに関する。 The present invention relates to a biological signal sensor that is brought into contact with a living body to acquire a biological signal.
　従来、１つ、もしくは複数の電極を用いて、生体（検体者）からの生体信号を取得する技術が各種実用化されている。 Conventionally, various techniques for acquiring a biological signal from a living body (sampler) using one or a plurality of electrodes have been put to practical use.
　特許文献１においては、平面状の筐体に、複数の平面状の電極を当接して並べた筋電センサ（生体信号センサ）が用いられている。 In Patent Document 1, a myoelectric sensor (a biological signal sensor) in which a plurality of planar electrodes are arranged in contact with each other in a planar casing is used.
特開２００８－２９５８６７号公報JP 2008-295867 A
　しかしながら、特許文献１の筋電センサは、筋電センサの筐体、電極が共に平面状であり、丸みを帯びた生体に近接させたときに、接触面積を広く確保することができず、生体信号を確実に計測することができないおそれがある。 However, in the myoelectric sensor of Patent Document 1, both the housing of the myoelectric sensor and the electrodes are planar, and when the myoelectric sensor is in proximity to a rounded living body, the contact area can not be secured widely. There is a possibility that the signal can not be measured reliably.
　したがって、本発明の目的は、生体への接触面積を広く確保し、安定した生体信号を効率良く取得する構造を提供することである。 Therefore, an object of the present invention is to provide a structure which secures a wide contact area to a living body and efficiently acquires a stable biological signal.
　この発明の生体信号センサの一態様は、生体信号の計測時に生体に近接して配置される第１主面と、第１主面の反対側の第２主面とを有する筐体と、第１主面に設けられる複数の検出電極とを備えている。第１主面は、端に対して中央が筐体の外側から内側へ凹むように楕円状に湾曲している。 One aspect of the biological signal sensor of the present invention is a housing having a first main surface disposed in proximity to a living body at the time of measuring a biological signal, and a second main surface opposite to the first main surface, And a plurality of detection electrodes provided on one main surface. The first main surface is elliptically curved such that the center is recessed from the outside to the inside of the housing with respect to the end.
　この構成では、生体信号の計測時に、生体信号センサを生体に確実に接触させることができ、計測の安定性が向上する。 In this configuration, the biological signal sensor can be reliably brought into contact with the living body when measuring the biological signal, and the stability of the measurement is improved.
　また、この発明の生体信号センサの一態様における複数の検出電極は、筐体の厚み方向である第１方向へ突出している構成であることが好ましい。 Further, it is preferable that the plurality of detection electrodes in one aspect of the biological signal sensor of the present invention be configured to protrude in a first direction which is a thickness direction of a housing.
　この構成では、生体に対して複数の検出電極が、より密着する構造となるため、計測の安定性がさらに向上する。 In this configuration, the plurality of detection electrodes are in more intimate contact with the living body, thereby further improving the measurement stability.
　また、この発明の生体信号センサの一態様において、第１主面の湾曲によって突出する両端を結ぶ方向を第２方向とし、第２方向に直交する方向を第３方向とした場合、複数の検出電極は、第２方向の長さが第３方向の長さよりも長いことが好ましい。 Further, in one aspect of the biological signal sensor of the present invention, a plurality of detections are performed when a direction connecting the both ends protruding due to the curvature of the first main surface is a second direction and a direction orthogonal to the second direction is a third direction. The electrode preferably has a length in the second direction longer than a length in the third direction.
　この構成では、生体信号センサを筋電センサとして用いた場合に、筋繊維の方向と第２方向が直交することによって、筋繊維からの生体信号を効率よく受信することができる。 In this configuration, when the biological signal sensor is used as an myoelectric sensor, the biological signal from the muscle fiber can be efficiently received by the direction of the muscle fiber being orthogonal to the second direction.
　この発明の生体信号センサの一態様における複数の検出電極は、第３方向に直交する位置に配置されていることが好ましい。 The plurality of detection electrodes in one aspect of the biological signal sensor of the present invention are preferably disposed at positions orthogonal to the third direction.
　この構成では、生体信号センサを筋電センサとして用いた場合に、複数の検出電極が筋繊維の伸びる方向と直交する方向に配置されていることにより、生体信号をより正確に受信することができる。 In this configuration, when the biosignal sensor is used as an myoelectric sensor, the biosignals can be received more accurately by arranging the plurality of detection electrodes in a direction orthogonal to the direction in which the muscle fibers extend. .
　また、この発明の生体信号センサの一態様において、第２主面は、端に対して中央が筐体の内側から外側へ突出するように湾曲していることが好ましい。 Further, in one aspect of the biosignal sensor of the present invention, the second main surface is preferably curved so that the center of the end protrudes from the inside to the outside of the housing.
　この構成では、生体信号の測定時に、生体信号センサの筐体をゴムバンド等で固定する場合に、より確実に該筐体を固定することができる。 In this configuration, when the case of the biological signal sensor is fixed with a rubber band or the like at the time of measurement of the biological signal, the case can be fixed more reliably.
　また、この発明の生体信号センサの一態様における複数の検出電極の少なくとも１つは、生体と接触する面が、楕円状に湾曲して形成されることが好ましい。 Further, it is preferable that at least one of the plurality of detection electrodes in one aspect of the biosignal sensor of the present invention is formed so that the surface in contact with the living body is curved in an elliptical shape.
　この構成では、複数の検出電極が、生体により密着する構造となるため、計測の安定性がさらに向上する。 In this configuration, since the plurality of detection electrodes are in close contact with the living body, the measurement stability is further improved.
　この発明の生体信号センサの一態様は、生体信号の計測時に生体に近接して配置される第１主面と、第１主面と反対側の第２主面とを有する筐体と、第１主面に設けられる複数の検出電極とを備えている。複数の検出電極の少なくとも１つは、端に対して中央が検出電極の外側から内側へ凹むように、生体と接触する面が、楕円状に湾曲して形成される。 One aspect of a biological signal sensor according to the present invention includes a housing having a first main surface disposed in proximity to a living body when measuring a biological signal, and a second main surface opposite to the first main surface, And a plurality of detection electrodes provided on one main surface. At least one of the plurality of detection electrodes is formed to be elliptically curved such that the surface in contact with the living body is concaved inward from the outside of the detection electrode at the center with respect to the end.
　この構成では、生体信号の計測時に、複数の検出電極を生体に確実に接触させることができ、計測の安定性が向上する。 In this configuration, when measuring the biological signal, the plurality of detection electrodes can be reliably brought into contact with the living body, and the stability of the measurement is improved.
　この発明によれば、生体への接触面を広く確保し、安定した生体信号を効率良く取得する構造を提供することができる。 According to the present invention, it is possible to provide a structure that secures a wide contact surface with a living body and efficiently acquires a stable biological signal.
図１は、本発明の第１の実施形態に係る生体信号センサ１０の第１主面１０１側からの外観斜視図である。FIG. 1 is an external perspective view from the first main surface 101 side of a biological signal sensor 10 according to a first embodiment of the present invention. 図２（Ａ）は、本発明の第１の実施形態に係る生体信号センサ１０の概要図であり、図２（Ｂ）は、生体信号センサ１０を側面から見た概要図である。FIG. 2A is a schematic view of the biological signal sensor 10 according to the first embodiment of the present invention, and FIG. 2B is a schematic view of the biological signal sensor 10 as viewed from the side. 図３は本発明の第１の実施形態に係る生体信号センサ１０を生体２０に接触させたイメージ図である。FIG. 3 is an image diagram in which the biological signal sensor 10 according to the first embodiment of the present invention is brought into contact with a living body 20. As shown in FIG. 図４（Ａ）は、本発明の第１の実施形態に係る生体信号センサ１０を第１主面１０１側から見た平面図であり、図４（Ｂ）は、生体信号センサ１０のＢ－Ｂ線における側面概要図である。FIG. 4A is a plan view of the biological signal sensor 10 according to the first embodiment of the present invention as viewed from the first main surface 101 side, and FIG. 4B is a plan view of the biological signal sensor 10. It is a side outline figure in B line. 図５（Ａ）は、本発明の第２の実施形態に係る生体信号センサ１０Ａを第１主面１０１側から見た平面図であり、図５（Ｂ）は、生体信号センサ１０ＡのＢ－Ｂ線における側面概要図であり、図５（Ｃ）は、生体信号センサ１０ＡのＣ－Ｃ線における側面概要図である。FIG. 5A is a plan view of the biological signal sensor 10A according to the second embodiment of the present invention as viewed from the first main surface 101 side, and FIG. 5B is a plan view of the biological signal sensor 10A. FIG. 5 (C) is a side schematic view of the biosignal sensor 10A taken along the line C-C. 図６（Ａ）は、本発明の第３の実施形態に係る生体信号センサ１０Ｂを第１主面１０１Ｂ側から見た平面図であり、図６（Ｂ）は、生体信号センサ１０ＢのＢ－Ｂ線における側面概要図である。FIG. 6A is a plan view of the biological signal sensor 10B according to the third embodiment of the present invention as viewed from the first main surface 101B side, and FIG. 6B is a plan view of the biological signal sensor 10B. It is a side outline figure in B line.
（第１の実施形態）
　本発明の第１の実施形態に係る生体信号センサについて、図を参照して説明する。図１は、本発明の第１の実施形態に係る生体信号センサ１０の第１主面１０１側からの外観斜視図である。図２（Ａ）は、本発明の第１の実施形態に係る生体信号センサ１０の概要図であり、図２（Ｂ）は、生体信号センサ１０を側面から見た概要図である。図３は、本発明の第１の実施形態に係る生体信号センサ１０を生体２０に接触させたイメージ図である。図４（Ａ）は、本発明の第１の実施形態に係る生体信号センサ１０を第１主面１０１側から見た平面図であり、図４（Ｂ）は、生体信号センサ１０のＢ－Ｂ線における側面概要図である。 First Embodiment
A biological signal sensor according to a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view from the first main surface 101 side of a biological signal sensor 10 according to a first embodiment of the present invention. FIG. 2A is a schematic view of the biological signal sensor 10 according to the first embodiment of the present invention, and FIG. 2B is a schematic view of the biological signal sensor 10 as viewed from the side. FIG. 3 is an image diagram in which the biological signal sensor 10 according to the first embodiment of the present invention is brought into contact with a living body 20. As shown in FIG. FIG. 4A is a plan view of the biological signal sensor 10 according to the first embodiment of the present invention as viewed from the first main surface 101 side, and FIG. 4B is a plan view of the biological signal sensor 10. It is a side outline figure in B line.
　図１に示すように、生体信号センサ１０は、筐体１００と、複数の検出電極１５１とを備える。筐体１００は、互いに間隔をあけて配置された、第１主面１０１と、第２主面１０２と、第１主面１０１と第２主面１０２とを連接する４側面とを備える。第１主面１０１は、角部ＣＲ１、ＣＲ２、ＣＲ３、ＣＲ４を備える。 As shown in FIG. 1, the biological signal sensor 10 includes a housing 100 and a plurality of detection electrodes 151. The housing 100 includes a first major surface 101, a second major surface 102, and four side surfaces connecting the first major surface 101 and the second major surface 102, which are arranged to be spaced apart from each other. The first major surface 101 includes corner portions CR1, CR2, CR3, and CR4.
　筐体１００、検出電極１５１は、ともに剛体である。筐体１００は、絶縁性であることが好ましい。検出電極１５１は、例えば、チタン化合物であることが好ましい。 The housing 100 and the detection electrode 151 are both rigid. The housing 100 is preferably insulating. The detection electrode 151 is preferably, for example, a titanium compound.
　筐体１００の厚み方向を第１方向とし、筐体１００における、短手方向を第２方向とし、長手方向を第３方向とする。第２方向の対辺同士は平行であり、また、第３方向の対辺同士は、平行である。なお、第２方向と第３方向とは、直交する。 The thickness direction of the housing 100 is a first direction, the short direction of the housing 100 is a second direction, and the longitudinal direction is a third direction. The opposite sides in the second direction are parallel, and the opposite sides in the third direction are parallel. The second direction and the third direction are orthogonal to each other.
　第１主面１０１は、第２方向における、略中心点において、外側から内側へ凹む形状であり、例えば楕円状に湾曲している。 The first major surface 101 has a shape that is recessed from the outside to the inside at a substantially central point in the second direction, and is curved in an elliptical shape, for example.
　図２（Ａ）、図２（Ｂ）を用いて、筐体１００の第１主面１０１の形状と、検出電極１５１の形状をより具体的に示す。図２（Ａ）に示すように、第１主面１０１における、角部ＣＲ１、ＣＲ２、ＣＲ３、ＣＲ４を結んだ平面を基準面ＢＰとする。 The shape of the first main surface 101 of the housing 100 and the shape of the detection electrode 151 are more specifically described with reference to FIGS. 2A and 2B. As shown in FIG. 2A, the plane connecting the corner portions CR1, CR2, CR3 and CR4 in the first major surface 101 is taken as a reference plane BP.
　基準面ＢＰの第２方向における角部ＣＲ１と角部ＣＲ２との中央点を、中点ＭＰ１とする。同様に、基準面ＢＰの第２方向における角部ＣＲ３と角部ＣＲ４との中央点を、中点ＭＰ２とする。また、中点ＭＰ１と、中点ＭＰ２を結んだ直線を中線ＭＬとする。 A central point between the corner CR1 and the corner CR2 in the second direction of the reference plane BP is a middle point MP1. Similarly, a central point between the corner CR3 and the corner CR4 in the second direction of the reference plane BP is taken as a middle point MP2. Further, a straight line connecting the middle point MP1 and the middle point MP2 is taken as a middle line ML.
　第１主面１０１は、上述の中線ＭＬを第１主面１０１に投影した位置において、最も凹むようにした、湾曲する楕円弧形状の面である。 The first major surface 101 is a curved elliptical arc-shaped surface that is most concaved at the position where the above-described midline ML is projected to the first major surface 101.
　より具体的な湾曲する楕円弧形状を、図２（Ｂ）を用いて説明する。図２（Ｂ）は、角部ＣＲ１、ＣＲ２を含んだ、第１方向と第２方向を含む面側から見た、生体信号センサ１０の側面概要図である。第１主面１０１は、第２方向における中点ＭＰ１の箇所で、最も凹んだ湾曲する楕円弧形状である。より具体的には、第１方向において、基準面ＢＰと第１主面１０１との距離が、中点ＭＰ１の箇所で最長であり、両端に近づくほど短くなる形状である。 A more specific curved elliptical arc shape will be described using FIG. 2 (B). FIG. 2B is a schematic side view of the biological signal sensor 10 viewed from the side including the first direction and the second direction including the corner portions CR1 and CR2. The first major surface 101 has a concaved-curved elliptical arc shape at the midpoint MP1 in the second direction. More specifically, in the first direction, the distance between the reference plane BP and the first major surface 101 is the longest at the location of the midpoint MP1, and becomes shorter as it approaches both ends.
　湾曲する楕円弧形状とは、好ましくは、湾曲面を円周の一部とする円の半径Ｒが、Ｒ＝５０ｍｍ～３００ｍｍの範囲となることが好ましい。このことによって、筐体１００の生体に対する密着性を向上させることができる。 In the curved elliptical arc shape, preferably, the radius R of a circle whose curved surface is a part of the circumference is preferably in the range of R = 50 mm to 300 mm. By this, the adhesiveness with respect to the biological body of the housing | casing 100 can be improved.
　図３は、具体的に生体２０の二の腕部分に、生体信号センサ１０を接触させたイメージ図である。生体２０の二の腕の丸みに対し、筐体１００の第１主面１０１を接触させる。この際、二の腕が伸びる方向と、生体信号センサ１０の第３方向とが平行となるように、生体信号センサ１０（筐体１００）を接触させる。ここで、第１主面１０１が湾曲していることにより、第１主面１０１の湾曲面と、生体２０の丸みによる湾曲面とが面状に略平行になり、筐体１００の第１主面１０１を生体２０に、より密接して接触させることができる。 FIG. 3 is an image diagram in which the biological signal sensor 10 is specifically brought into contact with the two arm portions of the living body 20. As shown in FIG. The first major surface 101 of the housing 100 is brought into contact with the roundness of the two arms of the living body 20. At this time, the biological signal sensor 10 (the housing 100) is brought into contact so that the direction in which the two arms extend is parallel to the third direction of the biological signal sensor 10. Here, since the first major surface 101 is curved, the curved surface of the first major surface 101 and the curved surface due to the roundness of the living body 20 become substantially parallel to each other, and the first main surface of the housing 100 The face 101 can be in more intimate contact with the living body 20.
　なお、本発明における生体とは、生物として生きているものを総称したものである。例えば、人体、動物、植物等である。 The living body in the present invention is a generic term for living things as living things. For example, human bodies, animals, plants and the like.
　検出対象である生体は一般的に丸みを帯びているので、筐体１００の湾曲する楕円弧形状は、効率良く、生体に適合させられる。 Since the living body to be detected is generally rounded, the curved elliptical arc shape of the housing 100 is efficiently adapted to the living body.
　このことにより、第１主面１０１に検出電極１５１が配置されているため、生体信号センサ１０は、生体信号をより確実に計測することができる。 Since the detection electrode 151 is arrange | positioned at 1st main surface 101 by this, the biosignal sensor 10 can measure a biosignal more reliably.
　次に、複数の検出電極１５１の構成について、具体的に説明する。 Next, the configuration of the plurality of detection electrodes 151 will be specifically described.
　図４（Ａ）は、生体信号センサ１０を第１主面１０１側から見た、平面図である。図４（Ｂ）は、図４（Ａ）における、生体信号センサ１０のＢ－Ｂ線における側面概要図である。 FIG. 4A is a plan view of the biological signal sensor 10 as viewed from the first main surface 101 side. FIG. 4B is a schematic side view of the biosignal sensor 10 taken along line BB in FIG. 4A.
　図４（Ａ）、図４（Ｂ）に示すように、複数の検出電極１５１は、筐体１００の第１主面１０１に形成されている。複数の検出電極１５１は、第１主面１０１において、第３方向に沿って、略均等に配置されている。 As shown in FIGS. 4A and 4B, the plurality of detection electrodes 151 are formed on the first main surface 101 of the housing 100. The plurality of detection electrodes 151 are arranged substantially equally along the third direction on the first major surface 101.
　複数の検出電極１５１は、第１主面１０１から突出するように形成されている。複数の検出電極１５１の天面１５５（第１主面１０１と対向する面）は、平面状である。 The plurality of detection electrodes 151 are formed to protrude from the first major surface 101. Top surfaces 155 (surfaces facing the first major surface 101) of the plurality of detection electrodes 151 are planar.
　このことから、検出電極１５１の、生体２０に対する接触面積は大きくなり、安定した生体信号を得ることができる。 From this, the contact area of the detection electrode 151 to the living body 20 is increased, and a stable biological signal can be obtained.
　特に、複数の検出電極１５１が、第１主面１０１から突出していることによって、柔らかい生体２０表面に筐体１００を接触させた時に、複数の検出電極１５１の天面１５５が、生体２０の表面に押し込まれて当接する。 In particular, when the casing 100 is in contact with the surface of the soft living body 20 by the plurality of detection electrodes 151 protruding from the first main surface 101, the top surface 155 of the plurality of sensing electrodes 151 is the surface of the living body 20. It is pushed in and abuts.
　したがって、当接面積を確実に稼ぐことができ、生体信号をより安定して受信できる。また、複数の検出電極１５１の天面１５５が平面状であることから、検出電極１５１の製造が容易である。 Therefore, the contact area can be reliably obtained, and the biological signal can be received more stably. In addition, since the top surfaces 155 of the plurality of detection electrodes 151 are planar, the manufacture of the detection electrodes 151 is easy.
　また、複数の検出電極１５１は、第２方向に長い形状である。これにより、筋繊維の伸びる方向の１箇所での当接面積を増やすことができ、生体信号をさらに安定した高いレベルで受信できる。 In addition, the plurality of detection electrodes 151 have a shape that is long in the second direction. As a result, the contact area at one location in the extending direction of the muscle fibers can be increased, and the biological signal can be received at a further stable high level.
　なお、図４（Ａ）、図４（Ｂ）に示すように、第２主面１０２は、第１主面１０１と略平行となる形状であることから、生体信号センサ１０を生体２０に巻き付ける際に、容易に巻き付けることができ、かつ、ずれ難い効果を奏する。 As shown in FIGS. 4A and 4B, since the second major surface 102 has a shape substantially parallel to the first major surface 101, the biological signal sensor 10 is wound around the living body 20. In this case, it is possible to wind easily and has the effect of being hard to shift.
（第２の実施形態）
　本発明の第２の実施形態に係る生体信号センサについて、図を参照して説明する。図５（Ａ）は、本発明の第２の実施形態に係る生体信号センサ１０Ａを第１主面１０１側から見た平面図であり、図５（Ｂ）は、生体信号センサ１０ＡのＢ－Ｂ線における側面概要図であり、図５（Ｃ）は、生体信号センサ１０ＡのＣ－Ｃ線における側面概要図である。 Second Embodiment
A biological signal sensor according to a second embodiment of the present invention will be described with reference to the drawings. FIG. 5A is a plan view of the biological signal sensor 10A according to the second embodiment of the present invention as viewed from the first main surface 101 side, and FIG. 5B is a plan view of the biological signal sensor 10A. FIG. 5 (C) is a side schematic view of the biosignal sensor 10A taken along the line C-C.
　図５（Ａ）、図５（Ｂ）、図５（Ｃ）に示すように、第２の実施形態に係る生体信号センサ１０Ａは、第１の実施形態に係る生体信号センサ１０に対して、検出電極１５２Ａを備えている点において異なる。生体信号センサ１０Ａの他の構成は、生体信号センサ１０と同様であり、同様の箇所の説明は省略する。 As shown in FIGS. 5 (A), 5 (B) and 5 (C), the biological signal sensor 10A according to the second embodiment is different from the biological signal sensor 10 according to the first embodiment, The difference is that the detection electrode 152A is provided. The other configuration of the biological signal sensor 10A is the same as that of the biological signal sensor 10, and the description of the same parts will be omitted.
　図５（Ａ）に示すように、生体信号センサ１０Ａは、複数の検出電極１５１と、検出電極１５２Ａを備える。複数の検出電極１５１、検出電極１５２Ａは、第１主面１０１において、略均等に配置されている。 As shown in FIG. 5A, the biological signal sensor 10A includes a plurality of detection electrodes 151 and a detection electrode 152A. The plurality of detection electrodes 151 and the detection electrodes 152A are arranged substantially equally on the first major surface 101.
　図５（Ｂ）、図５（Ｃ）に示すように、検出電極１５１、検出電極１５２Ａは、第１主面１０１から突出するように形成されている。また、図５（Ｂ）に示すように、検出電極１５１の天面１５５（第１主面１０１と対向する面）は、フラットな平面である。図５（Ｃ）に示すように、検出電極１５２Ａの天面１５６は、検出電極１５２Ａの第２方向における中心点が、第１主面１０１側へ最も凹んだ、湾曲する楕円弧形状の面である。 As shown in FIGS. 5B and 5C, the detection electrode 151 and the detection electrode 152A are formed to protrude from the first major surface 101. Further, as shown in FIG. 5B, the top surface 155 (surface facing the first major surface 101) of the detection electrode 151 is a flat surface. As shown in FIG. 5C, the top surface 156 of the detection electrode 152A is a curved elliptical arc-shaped surface in which the center point of the detection electrode 152A in the second direction is most recessed toward the first main surface 101. .
　このような構成の生体信号センサ１０Ａにおいても、生体２０に安定して接触させることができ、生体信号を効率よく取得することができる。また、生体２０の形状によっては、より効率的に生体信号を取得できる。 Also in the biological signal sensor 10A having such a configuration, it can be stably brought into contact with the living body 20, and the biological signal can be efficiently acquired. In addition, depending on the shape of the living body 20, biological signals can be acquired more efficiently.
　本実施形態においては、検出電極１５２Ａが１つ形成されている例について説明したが、全ての検出電極が検出電極１５２Ａと同じ形状であっても、同様の効果を得ることができる。 In the present embodiment, an example in which one detection electrode 152A is formed has been described, but even if all the detection electrodes have the same shape as the detection electrode 152A, the same effect can be obtained.
（第３の実施形態）
　本発明の第３の実施形態に係る生体信号センサについて、図を参照して説明する。図６（Ａ）は、本発明の第３の実施形態に係る生体信号センサ１０Ｂを第１主面１０１Ｂ側から見た平面図であり、図６（Ｂ）は、生体信号センサ１０ＢのＢ－Ｂ線における側面概要図である。 Third Embodiment
A biological signal sensor according to a third embodiment of the present invention will be described with reference to the drawings. FIG. 6A is a plan view of the biological signal sensor 10B according to the third embodiment of the present invention as viewed from the first main surface 101B side, and FIG. 6B is a plan view of the biological signal sensor 10B. It is a side outline figure in B line.
　図６（Ａ）、図６（Ｂ）に示すように、第３の実施形態に係る生体信号センサ１０Ｂは、第１の実施形態に係る生体信号センサ１０に対して、複数の検出電極１５１Ｂを備えている点、第１主面１０１Ｂ、第２主面１０２Ｂの形状において異なる。生体信号センサ１０Ｂの他の構成は、生体信号センサ１０と同様であり、同様の箇所の説明は省略する。 As shown in FIGS. 6A and 6B, the biological signal sensor 10B according to the third embodiment is different from the biological signal sensor 10 according to the first embodiment in a plurality of detection electrodes 151B. It differs in the point of having and the shape of 1st main surface 101B and 2nd main surface 102B. The other configuration of the biological signal sensor 10B is the same as that of the biological signal sensor 10, and the description of the same parts will be omitted.
　図６（Ａ）に示すように、生体信号センサ１０Ｂは、複数の検出電極１５１Ｂを備える。検出電極１５１Ｂは、第１の実施形態の検出電極１５１と比較して、第２方向における長さが長い形状である。より具体的には、検出電極１５１Ｂの長さは、筐体１００Ｂの第２方向における長さと略同じである。 As illustrated in FIG. 6A, the biological signal sensor 10B includes a plurality of detection electrodes 151B. The detection electrode 151B has a shape in which the length in the second direction is longer than that of the detection electrode 151 of the first embodiment. More specifically, the length of the detection electrode 151B is substantially the same as the length in the second direction of the housing 100B.
　検出電極１５１Ｂは、生体信号センサ１０Ｂの第１主面１０１Ｂに形成されている。検出電極１５１Ｂの天面１５７は、検出電極１５１Ｂの第２方向における中心点が、第１主面１０１Ｂ側へ最も凹んだ、湾曲する楕円弧形状の面である。 The detection electrode 151B is formed on the first main surface 101B of the biological signal sensor 10B. The top surface 157 of the detection electrode 151B is a curved elliptical arc-shaped surface in which the center point of the detection electrode 151B in the second direction is most recessed toward the first major surface 101B.
　図６（Ｂ）に示すように、生体信号センサ１０Ｂの第１主面１０１Ｂ、第２主面１０２Ｂは、フラットな平面である。 As shown in FIG. 6B, the first main surface 101B and the second main surface 102B of the biological signal sensor 10B are flat.
　このような構成の生体信号センサ１０Ｂにおける、第１主面１０１Ｂ、第２主面１０２Ｂが平面状であっても、検出電極１５１Ｂの第２方向における長さが長く、かつ湾曲する楕円弧形状であるため、生体２０に対する接触を安定させることができ、生体信号を効率よく取得することができる。 Even if the first main surface 101B and the second main surface 102B in the biological signal sensor 10B having such a configuration are planar, the length in the second direction of the detection electrode 151B is long and curved in an elliptic arc shape. Therefore, the contact with the living body 20 can be stabilized, and the biological signal can be efficiently acquired.
　なお、上述の各実施形態において、検出電極を３つ備えた構成を示したが、生体信号を検出できる構成であれば、いくつ備えていても良い。 In each of the above-described embodiments, the configuration provided with three detection electrodes is shown, but any number may be provided as long as the configuration can detect a biological signal.
　また、上述の各実施形態では、特に具体的に示していないが、生体センサを筋電センサとして用いる場合には、検出電極の１つを接地されるグランド電極とし、残る検出電極の２つを検出用電極として用いれば良い。 In each of the above-described embodiments, although not specifically shown, when the biological sensor is used as an myoelectric sensor, one of the detection electrodes is a ground electrode to be grounded, and the remaining two detection electrodes are It may be used as a detection electrode.
　また、上述の各実施形態における、筐体１００の第１主面１０１における角部ＣＲ１、ＣＲ２、ＣＲ３、ＣＲ４はＲ面取りされていることが好ましい。これにより、生体信号センサが生体へ接触したときの刺激を和らげることができる。
Moreover, it is preferable that the corner parts CR1, CR2, CR3, and CR4 in the 1st main surface 101 of the housing | casing 100 in each above-mentioned embodiment are R-chamfered. Thereby, the stimulation when the biological signal sensor contacts the living body can be alleviated.
ＢＰ…基準面
ＣＲ１、ＣＲ２、ＣＲ３、ＣＲ４…角部
ＭＬ…中線
ＭＰ１、ＭＰ２…中点
Ｒ…半径
１０、１０Ａ、１０Ｂ…生体信号センサ
２０…生体
１００、１００Ｂ…筐体
１０１、１０１Ｂ…第１主面
１０２、１０２Ｂ…第２主面
１５１、１５１Ｂ、１５２Ａ…検出電極
１５５、１５６、１５７…天面 BP: reference surface CR1, CR2, CR3, CR4: corner portion ML: midline MP1, MP2: middle point R: radius 10, 10A, 10B: biological signal sensor 20: living body 100, 100B: housing 101, 101B: first 1 main surface 102, 102B ... second main surface 151, 151B, 152A ... detection electrode 155, 156, 157 ... top surface

Claims (11)

  1. 　生体信号の計測時に生体に近接して配置される第１主面と、前記第１主面の反対側の第２主面と、を有する筐体と、
    　前記第１主面に設けられる複数の検出電極と、
    を備え、
    　前記第１主面は、端に対して中央が前記筐体の外側から内側へ凹むように楕円状に湾曲している、
    　生体信号センサ。     A housing having a first main surface disposed in proximity to a living body when measuring a biological signal, and a second main surface opposite to the first main surface;
    A plurality of detection electrodes provided on the first main surface;
    Equipped with
    The first main surface is elliptically curved such that the center is recessed from the outside to the inside of the housing with respect to the end.
    Biosignal sensor.
  2. 　前記複数の検出電極は、
    　前記筐体の厚み方向である第１方向へ突出している、請求項１に記載の生体信号センサ。     The plurality of detection electrodes are
    The biological signal sensor according to claim 1, which protrudes in a first direction which is a thickness direction of the housing.
  3. 　前記第１主面の湾曲によって突出する両端を結ぶ方向を第２方向とし、前記第２方向に直交する方向を第３方向として、
    　前記複数の検出電極は、第２方向の長さが前記第３方向の長さよりも長い、
    　請求項１または請求項２に記載の生体信号センサ。     The direction which connects the both ends which protrude by curving of the said 1st main surface is made into 2nd direction, and let the direction orthogonal to the said 2nd direction be 3rd direction,
    The plurality of detection electrodes have a length in the second direction longer than a length in the third direction,
    The biosignal sensor according to claim 1 or 2.
  4. 　前記複数の検出電極は、
    　前記第３方向に直交する位置に配置されている、請求項３に記載の生体信号センサ。     The plurality of detection electrodes are
    The biological signal sensor according to claim 3, which is disposed at a position orthogonal to the third direction.
  5. 　前記第２主面は、端に対して中央が前記筐体の内側から外側へ突出するように湾曲している、
    　請求項１乃至請求項４のいずれかに記載の生体信号センサ。     The second main surface is curved such that the center thereof protrudes from the inside to the outside of the housing with respect to the end.
    The biosignal sensor according to any one of claims 1 to 4.
  6. 　前記複数の検出電極の少なくとも１つは、前記生体と接触する面が、楕円状に湾曲して形成される、
    　請求項１乃至請求項５のいずれかに記載の生体信号センサ。     At least one of the plurality of detection electrodes is formed such that the surface in contact with the living body is elliptically curved.
    The biosignal sensor according to any one of claims 1 to 5.
  7. 　生体信号の計測時に生体に近接して配置される第１主面と、前記第１主面と反対側の第２主面と、を有する筐体と、
    　前記第１主面に設けられる複数の検出電極と、
    を備え、
    　前記複数の検出電極の少なくとも１つは、端に対して中央が前記検出電極の外側から内側へ凹むように、前記生体と接触する面が、楕円状に湾曲して形成される、
    　生体信号センサ。     A housing having a first main surface disposed in proximity to a living body when measuring a biological signal, and a second main surface opposite to the first main surface;
    A plurality of detection electrodes provided on the first main surface;
    Equipped with
    At least one of the plurality of detection electrodes is formed such that the surface in contact with the living body is elliptically curved such that the center of the end is recessed from the outside to the inside of the detection electrode.
    Biosignal sensor.
  8. 　前記複数の検出電極は、
    　前記筐体の厚み方向である第１方向へ突出している、請求項７に記載の生体信号センサ。     The plurality of detection electrodes are
    The biological signal sensor according to claim 7, which protrudes in a first direction which is a thickness direction of the housing.
  9. 　前記第１主面の湾曲している方向の端を結ぶ方向を第２方向とし、前記第２方向に直交する方向を第３方向として、
    　前記複数の検出電極は、前記第２方向の長さが前記第３方向の長さよりも長い、
    　請求項７または請求項８に記載の生体信号センサ。     A direction connecting the ends of the first main surface in the curved direction is a second direction, and a direction orthogonal to the second direction is a third direction.
    The plurality of detection electrodes have a length in the second direction longer than a length in the third direction.
    The biosignal sensor according to claim 7 or 8.
  10. 　前記複数の検出電極は、
    　前記第３方向に直交する位置に配置されている、請求項９に記載の生体信号センサ。     The plurality of detection electrodes are
    The biological signal sensor according to claim 9, arranged at a position orthogonal to the third direction.
  11. 　前記第２主面は、端に対して中央が前記筐体の内側から外側へ突出するように湾曲している、
    　請求項７乃至請求項１０のいずれかに記載の生体信号センサ。     The second main surface is curved such that the center thereof protrudes from the inside to the outside of the housing with respect to the end.
    The biosignal sensor according to any one of claims 7 to 10.
PCT/JP2018/026795 2017-10-12 2018-07-18 Biological signal sensor WO2019073648A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001276007A (en) * 2000-03-30 2001-10-09 Tanita Corp Instrument for measuring biological electric impedance
JP2008086361A (en) * 2006-09-29 2008-04-17 Casio Comput Co Ltd Biological information detecting device
JP2008295867A (en) * 2007-06-01 2008-12-11 Oisaka Denshi Kiki:Kk Biological signal measuring device
US20150165269A1 (en) * 2012-04-27 2015-06-18 Fibrux Oy Method and device for measuring muscle signals

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001276007A (en) * 2000-03-30 2001-10-09 Tanita Corp Instrument for measuring biological electric impedance
JP2008086361A (en) * 2006-09-29 2008-04-17 Casio Comput Co Ltd Biological information detecting device
JP2008295867A (en) * 2007-06-01 2008-12-11 Oisaka Denshi Kiki:Kk Biological signal measuring device
US20150165269A1 (en) * 2012-04-27 2015-06-18 Fibrux Oy Method and device for measuring muscle signals

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