WO2021157296A1 - 脳波測定装置 - Google Patents

脳波測定装置 Download PDF

Info

Publication number
WO2021157296A1
WO2021157296A1 PCT/JP2021/000782 JP2021000782W WO2021157296A1 WO 2021157296 A1 WO2021157296 A1 WO 2021157296A1 JP 2021000782 W JP2021000782 W JP 2021000782W WO 2021157296 A1 WO2021157296 A1 WO 2021157296A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
electroencephalogram
rail
electrode holding
measuring device
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.)
Ceased
Application number
PCT/JP2021/000782
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
雄眞 北添
拓弥 原田
八木澤　隆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Bakelite Co Ltd
Original Assignee
Sumitomo Bakelite Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Bakelite Co Ltd filed Critical Sumitomo Bakelite Co Ltd
Priority to JP2021532499A priority Critical patent/JP7092266B2/ja
Publication of WO2021157296A1 publication Critical patent/WO2021157296A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/369—Electroencephalography [EEG]
    • 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
    • A61B5/251—Means for maintaining electrode contact with the body
    • 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

Definitions

  • the present invention relates to an electroencephalogram measuring device.
  • the brain wave measurement electrode (brain wave electrode holder) disclosed in Patent Document 1 includes a main body portion arranged around the head, a plurality of support portions attached to the main body portion, and at least a part of the support portions.
  • the brain wave electrode has an opening, and the base end side is supported by the support portion, and the flexible portion is flexible and elastically deformed, and the flexible portion is provided on the tip end side of the flexible portion and is provided on the head surface.
  • the flexible portion has an electrode portion to be brought into contact with the electrode portion, and the flexible portion can be deformed until the electrode portion is moved in a direction away from the axis of the support portion.
  • the contact pressure of the above is applied, and the flexible portion also applies the contact pressure with the head surface to the electrode portion moved in a substantially parallel direction along the head surface.
  • the present invention has been made in view of such a situation, and an object of the present invention is to provide a technique for facilitating the work of adjusting the position of an electrode in an electroencephalogram measuring device.
  • the electrode holding portion has a connecting portion that connects to each of the rails.
  • the connecting portion and the rail are not fixed, and as the electrode portion is attached and the pressure contact state between the electrode portion and the scalp becomes stronger, the electrode The fixing between the holding part and the rail becomes stronger.
  • An electroencephalogram measuring device is provided.
  • FIG. 1 is a diagram schematically showing an electroencephalogram measuring device 10 worn on a human head 99.
  • FIGS. 1 to 5 for convenience, it will be described in the up / down / front / back / left / right directions indicated by arrows.
  • the electroencephalogram measuring device 10 is attached to a human head 99, detects an electroencephalogram as a potential fluctuation from a living body, and outputs the detected electroencephalogram to a brain wave display device (not shown).
  • the electroencephalogram display device acquires the electroencephalogram detected by the electroencephalogram measuring device 10, displays it on a monitor, saves data, and performs well-known electroencephalogram analysis processing.
  • the electroencephalogram measuring device 10 has a plurality of electroencephalogram electrode units 80, a fixing frame 20, and an electrode holding portion 40 for attaching the electroencephalogram electrode unit 80 to the fixing frame 20.
  • the electroencephalogram electrode unit 80 is attached to the electrode holding portion 40 and then attached to the fixing frame 20.
  • the electroencephalogram electrode units 80 are provided for 5 channels (5), and the electrode holding portions 40 are also provided accordingly.
  • the position of 5ch (that is, the mounting position of the electroencephalogram electrode unit 80) corresponds to the positions of T3, C3, Cz, C4, and T4 in the international 10-20 electrode arrangement method.
  • FIG. 2 shows a front view of the electroencephalogram electrode unit 80.
  • the electroencephalogram electrode unit 80 has a substantially columnar body portion 81, and an electrode protrusion 83 provided on one end side (lower side in the drawing) thereof.
  • the side surface portion of the body portion 81 is provided with a screw, and is screw-fitted into the electrode mounting hole 49 (see FIGS. 3 and 4) provided in the electrode holding portion 40.
  • a signal extraction portion is formed at one end (upper end in the drawing) of the electroencephalogram electrode unit 80.
  • An electrode protrusion 83 is provided at the other end (lower end in the drawing) of the electroencephalogram electrode unit 80.
  • the electrode protrusion 83 is provided with a conductive electrode member in a structure of, for example, a rubber-like elastic body (silicone rubber or the like) having a predetermined shape, and a signal detected by the electrode member is taken out from a signal extraction portion by a signal line. ing.
  • the predetermined shape of the rubber-like elastic body exhibited by the electrode protrusion 83 is, for example, a shape in which a plurality of protrusions extend in an annular shape from a columnar base.
  • a conductive electrode member is provided on the protrusion.
  • FIG. 3 shows a perspective view of the fixing frame 20 to which the electrode holding portion 40 is attached.
  • the fixing frame 20 and the electrode holding portion 40 are made of a hard member such as a polyamide resin, but the purpose is not limited to these materials, they do not affect the electroencephalogram detection, and are suitable for wearability and workability. Any material will do. Further, different materials may be used for the fixing frame 20 and the electrode holding portion 40.
  • the fixing frame 20 has a pair (two) of rails 21 arranged in parallel, and a rail fastening portion 23 for connecting the rails 21 so as to pass each other at a plurality of places.
  • the pair of rails 21 are curved along the head 99.
  • the space surrounded by the pair of rails 21 and the rail fastening portion 23 is a movable region 29 in which the electrode holding portion 40 can move. That is, the movable region 29 is provided in a range in which the electrode holding portion 40 (electroencephalogram electrode unit 80) is arranged and moves within a certain range.
  • the rail fastening portion 23 is provided at a position that does not hinder the movement of the electrode holding portion 40.
  • the movable regions 29 are provided at five locations corresponding to each of the five electrode holding portions 40 (electroencephalogram electrode unit 80).
  • 4A and 4B are views showing the electrode holding portion 40, FIG. 4A is a perspective view, and FIG. 4B is a side view.
  • the electrode holding portion 40 includes a rectangular first connecting surface 41 which is substantially plate-shaped and long in the front-rear direction, and an arm-shaped connecting portion 50 extending downward at each of the front-rear end portions of the first connecting surface 41. Has. At the center of the first connecting surface 41, an electrode mounting hole 49 is provided so that the electroencephalogram electrode unit 80 can be screw-fitted.
  • the connecting portion 50 is predetermined from the second connecting surface 42 extending downward from each of the front and rear ends of the first connecting surface 41 and inward from the lower end of the second connecting surface 42. It has a third connecting surface 43 that extends long.
  • the inward direction means the direction of the end portions on the opposite sides of the front and rear, and specifically, the third connecting surface 43 extending from the second connecting surface 42 on the front side has a predetermined length on the rear side. Only postpone.
  • the third connecting surface 43 extending from the second connecting surface 42 on the rear side extends to the front side by a predetermined length. At this time, the distance between the extending ends of the front and rear connecting surfaces 42 is such that they do not interfere with each other when the electroencephalogram electrode unit 80 is attached to the electrode attachment holes 49.
  • a regulation surface 44 extending further upward by a predetermined length is provided at the end extending inward of the third connecting surface 43.
  • the extending end portion (upper end portion) of the regulation surface 44 has a constant interval without hitting the inner wall surface of the first connecting surface 41.
  • the space surrounded by the first connecting surface 41, the second connecting surface 42, the third connecting surface 43, and the regulating surface 44 is called a cotangent space 48.
  • the rail 21 is accommodated in the extra space 48 (see FIG. 5).
  • the distance between the upper end of the regulation surface 44 and the inner wall surface of the first connecting surface 41 is used when the electrode holding portion 40 is attached to the rail 21.
  • FIG. 5 is a diagram for explaining the transition of the fixed state of the electrode holding portion 40 and the fixing frame 20.
  • FIG. 5A shows a state in which the electrode holding portion 40 to which the electroencephalogram electrode unit 80 is attached is arranged on the fixing frame 20 (rail 21). In this state, the rail 21 and the electrode holding portion 40 are not fixed, and the electrode holding portion 40 can move vertically and horizontally with respect to the rail 21 and in the extending direction of the rail 21.
  • FIG. 5B shows a state in which the electroencephalogram electrode unit 80 is screwed into the electrode holding portion 40, the electrode protrusion 83 is in contact with the head 99, and the rail 21 is in contact with the contact surface 45 of the connecting portion 50. be.
  • the electroencephalogram electrode unit 80 is further screwed in from this state, the fixed state between the rail 21 and the contact surface 45 becomes stronger. Further, the tip of the electrode protrusion 83 in contact with the head 99 is bent, and the force with which the electrode protrusion 83 is pressed against the scalp becomes stronger.
  • the electroencephalogram measuring device 10 is The electroencephalogram electrode unit 80 (electrode unit) used for detecting electroencephalograms and A fixing frame 20 having a pair of rails 21 provided in parallel and mounted on the head 99, A plurality of electrode holding portions 40 to which the electroencephalogram electrode unit 80 is attached, and Have, The electrode holding portion 40 has a connecting portion 50 that connects to each of the rails 21.
  • the electrode holding portion 40 has a fixing structure in which two parallel rails 21 are fixed by the two connecting portions 50. In this fixing structure, the electroencephalogram electrode unit 80 is screwed into the electrode mounting hole 49 of the electrode holding portion 40, and the fixing strength is adjusted by the screwing amount.
  • a cotangent space 48 capable of adjusting the relative position between the connecting portion 50 and the rail 21 is provided. That is, within the range of the extra space 48, the position of the connecting portion 50 can be adjusted relative to the rail 21 in the vertical, forward, backward, horizontal, and horizontal directions. This does not affect the fixed state of the other electrode holding portions 40.
  • the electroencephalogram electrode unit 80 (electrode portion) is not fixed to the electrode holding portion 40, the relative position of the connecting portion 50 and the rail 21 in the extending direction (extending direction) is adjusted by the extra space 48. It is possible. That is, the position of the electroencephalogram electrode unit 80 can be adjusted in the left-right direction within the range in which the movable region 29 is formed. This does not affect the fixed state of the other electrode holding portions 40.
  • the positions of the connecting portion 50 and the rail 21 in the passing direction of the two rails 21 can be adjusted by the cotangent space 48. Is. That is, the position of the electrode holding portion 40 can be adjusted in the width direction of the rail 21 (front-back direction in the drawing). This does not affect the fixed state of the other electrode holding portions 40.
  • the connecting portion 50 and the rail 21 are positioned in the distance direction between the rail 21 and the head 99 due to the cotangent space 48. It is adjustable. That is, the electrode holding portion 40 (connecting portion 50) can move up and down within the range of the cotangent space 48. This does not affect the fixed state of the other electrode holding portions 40.
  • each electrode holding portion 40 and the electrode portion is independent of the fixing of the other electrode holding portion 40 and the electrode portion (electroencephalogram electrode unit 80).
  • the fixing position of a certain electroencephalogram electrode unit 80 the fixing work between the other electrode holding portion 40 and the electrode portion (electroencephalogram electrode unit 80) is not affected. If the fixed state of the electroencephalogram electrode unit 80 whose fixed state and detection level have been adjusted is changed, the detection level and the like need to be adjusted again.
  • the electroencephalogram electrode unit 80 (electrode portion) may be fixed to the electrode holding portion 40 by a fitting mechanism.
  • the electroencephalogram electrode unit 80 (electrode portion) may be fixed to the electrode holding portion 40 by a magnet joining mechanism.
  • various fitting mechanisms insertion fitting and thumb turn mechanism
  • magnet joining mechanisms may be used, not limited to the screw fitting of the above embodiment. can.
  • a function of scraping the hair by the fixing operation can be realized at the same time.
  • an appropriate contact position can be obtained regardless of the screwing position (rotational position), and an electroencephalogram can be obtained.
  • the measurement accuracy is stable.
  • Electroencephalogram measuring device 20 Fixing frame 21 Rail 23 Rail fastening part 29 Movable area 40 Electrode holding part 41 First connecting surface 42 Second connecting surface 43 Third connecting surface 44 Regulation surface 45 Contact surface 48 Extra space 49 Electrode mounting hole 50 Connecting part 80 Brain wave electrode unit 81 Body part 83 Electrode protrusion part

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Psychiatry (AREA)
  • Psychology (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
PCT/JP2021/000782 2020-02-07 2021-01-13 脳波測定装置 Ceased WO2021157296A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2021532499A JP7092266B2 (ja) 2020-02-07 2021-01-13 脳波測定装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020-019314 2020-02-07
JP2020019314 2020-02-07

Publications (1)

Publication Number Publication Date
WO2021157296A1 true WO2021157296A1 (ja) 2021-08-12

Family

ID=77199992

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/000782 Ceased WO2021157296A1 (ja) 2020-02-07 2021-01-13 脳波測定装置

Country Status (2)

Country Link
JP (1) JP7092266B2 (https=)
WO (1) WO2021157296A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12178580B2 (en) 2019-12-23 2024-12-31 Alimetry Limited Electrode patch and connection system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04128702U (ja) * 1991-05-13 1992-11-25 セーラー万年筆株式会社 脳波測定用プローブ装着具
JP2006000162A (ja) * 2004-06-15 2006-01-05 Olympus Corp 生体信号検出装置及び生体信号計測システム

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH062648Y2 (ja) * 1989-08-29 1994-01-26 セーラー万年筆株式会社 脳波測定用プローブ装着具
JPH062651Y2 (ja) * 1989-12-20 1994-01-26 セーラー万年筆株式会社 脳波測定用プローブ
JP2016220770A (ja) * 2015-05-27 2016-12-28 パナソニックＩｐマネジメント株式会社 脳波計
JP2018102413A (ja) * 2016-12-22 2018-07-05 パナソニックＩｐマネジメント株式会社 脳波計

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04128702U (ja) * 1991-05-13 1992-11-25 セーラー万年筆株式会社 脳波測定用プローブ装着具
JP2006000162A (ja) * 2004-06-15 2006-01-05 Olympus Corp 生体信号検出装置及び生体信号計測システム

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12178580B2 (en) 2019-12-23 2024-12-31 Alimetry Limited Electrode patch and connection system
US12245862B2 (en) 2019-12-23 2025-03-11 Alimetry Limited Electrode patch and connection system

Also Published As

Publication number Publication date
JP7092266B2 (ja) 2022-06-28
JPWO2021157296A1 (https=) 2021-08-12

Similar Documents

Publication Publication Date Title
JP7070650B2 (ja) 脳波測定装置
JP4948326B2 (ja) 生体光計測用頭部装着式ホルダ
CN101933805B (zh) 耳廓安装设备和生物信号测量装置
JP6675535B2 (ja) 脳活動検出システム、脳活動検出システムを使用した脳活動の解析方法、そのような脳活動の解析方法による個人特性の評価方法及び個人の見え方の評価方法
KR101238192B1 (ko) 귀-부착형 센서셋 및 그 동작 방법
JP2006043024A (ja) 脳機能検出装置
JP7092266B2 (ja) 脳波測定装置
WO2022004408A1 (ja) 脳波測定装置
KR20110105363A (ko) 인체 장착형 센서셋 및 그 동작 방법
KR102185338B1 (ko) 안면 지지 마스크 및 이를 포함하는 헤드 마운트 디스플레이 장치
KR101246183B1 (ko) 밴드형 센서셋 및 그 동작 방법
JP7092271B2 (ja) 脳波測定装置、装着方法およびキット
JP7468876B2 (ja) 電極保持具及びインピーダンス測定装置
US20180133085A1 (en) Positioning apparatus for head and neck assessment or intervention
EP3320848A1 (en) Positioning apparatus for head and neck assessment or intervention
KR102200414B1 (ko) 생체 데이터 획득용 탈착식 기능모듈 및 이를 포함하는 헤드 마운트 디스플레이 장치
KR102312185B1 (ko) 생체 데이터 획득용 탈착식 기능모듈 및 이를 포함하는 헤드 마운트 디스플레이 장치
JP3961476B2 (ja) 圧脈波センサ及び圧脈波計測装置
JP2023024052A (ja) 脳波測定用電極および脳波測定装置
JP7028371B2 (ja) 脳波測定装置
JPH1156799A (ja) 頸動脈圧波検出装置
JP2005245624A (ja) プローブホルダ及び光生体計測装置
JP6216863B1 (ja) 頭部及び頚部の評価または介入用ポジショニング装置
WO2021131652A1 (ja) 振動付与装置
KR20200069150A (ko) 손의 피로도를 감소시키는 맥파감지 장치

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2021532499

Country of ref document: JP

Kind code of ref document: A

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21751193

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21751193

Country of ref document: EP

Kind code of ref document: A1