WO2014038816A1 - Corps d'électrode pour mesure d'ondes cérébrales dans lequel la longueur et la direction des électrodes varient, et appareil de mesure d'ondes cérébrales utilisant celui-ci - Google Patents

Corps d'électrode pour mesure d'ondes cérébrales dans lequel la longueur et la direction des électrodes varient, et appareil de mesure d'ondes cérébrales utilisant celui-ci Download PDF

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Publication number
WO2014038816A1
WO2014038816A1 PCT/KR2013/007762 KR2013007762W WO2014038816A1 WO 2014038816 A1 WO2014038816 A1 WO 2014038816A1 KR 2013007762 W KR2013007762 W KR 2013007762W WO 2014038816 A1 WO2014038816 A1 WO 2014038816A1
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WO
WIPO (PCT)
Prior art keywords
electrode
support
length
electrodes
electrode body
Prior art date
Application number
PCT/KR2013/007762
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English (en)
Korean (ko)
Inventor
김영환
홍혁기
손재기
Original Assignee
전자부품연구원
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.)
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Publication date
Application filed by 전자부품연구원 filed Critical 전자부품연구원
Publication of WO2014038816A1 publication Critical patent/WO2014038816A1/fr

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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
    • A61B5/291—Bioelectric electrodes therefor specially adapted for particular uses for electroencephalography [EEG]

Definitions

  • the present invention relates to an electrode body for measuring EEG and an EEG measuring apparatus using the same, and more particularly to an electrode body for contacting the human scalp for EEG measurement and an EEG measuring apparatus using the same.
  • Electrodes for EEG measurement are classified into a wet electrode and a dry electrode.
  • Wet electrodes use a gel to moisturize the scalp to lower skin impedance and reduce noise to enable accurate EEG measurements.
  • the wet electrode method causes discomfort because the gel is applied to the scalp, the preparation process for measuring EEG is long, and in some cases the hair needs to be removed.
  • dry electrodes have different pressures on the scalp. This is due to the fact that the two phases are very irregular curved surfaces rather than planes.
  • the dry electrode may be in close contact with the scalp, or may be in close contact with the scalp, depending on the location, which reduces the accuracy of EEG measurement.
  • the dry electrode does not supply moisture to the scalp, so the skin impedance is high, and as the wet electrode is not fixed to the scalp, there is a problem that noise is severely generated by movement of the head.
  • the present invention has been made to solve the above problems, an object of the present invention, the electrode body for measuring the EEG for varying the length and direction of the uniform electrode pressure applied to the scalp for more accurate EEG measurement And to provide an EEG measurement device using the same.
  • another object of the present invention is to reduce the high impedance and a lot of noise generated by using a dry electrode, an electrode body for measuring EEG using a hybrid electrode combining the characteristics of the dry electrode and the wet electrode and It is to provide an EEG measuring apparatus using the same.
  • the electrode body for measuring brain waves one end of the electrode in contact with the scalp, the length is variable; And a combination of the electrodes coupled thereto.
  • the electrode the electrode body; An electrode body accommodating portion; And an electrode spring provided in the electrode body accommodating part, one end of which is in contact with the support plate provided in the assembly, and the other end of which is in contact with the electrode body. Accordingly, the length of the electrode can be determined.
  • the EEG measuring electrode body according to an embodiment of the present invention, one side is fixed to the frame, the other side is coupled to the combination, the support length is variable; may further include a.
  • the support support body; Support body receiving portion; And a support spring provided in the support body accommodating portion, one end of which is in contact with a fixture for fixing the support to the frame, and the other end of which is in contact with the support body.
  • the length of the support may be determined.
  • the combination is coupled to the support in a manner that accommodates the ball provided on the other side of the support, it is possible to change the direction of the electrode by ball-rotating around the support.
  • the electrode body for measuring brain waves may further include a gel coupled to the scalp contact portion of the electrode.
  • the length and / or direction of the electrode in the electrode body for measuring EEG is variable, the pressures applied to the scalp by the electrodes can be maintained uniformly, thereby enabling more accurate EEG measurement.
  • a hybrid electrode that combines the characteristics of the dry electrode and the characteristics of the wet electrode, combining the advantages of the dry electrode that can be easily measured EEG without discomfort and the advantage of the wet electrode effective for impedance and noise attenuation Can be operated.
  • FIG. 1 is a perspective view of an EEG measuring apparatus according to a preferred embodiment of the present invention
  • FIG. 2 is a front view of the EEG measuring apparatus shown in FIG.
  • FIG. 3 is a plan view of the EEG measuring apparatus shown in FIG.
  • FIG. 4 is a rear view of the EEG measuring apparatus shown in FIG. 1,
  • FIG. 1 is a perspective view of an EEG measuring apparatus according to a preferred embodiment of the present invention.
  • 2 illustrates a front view of the EEG measuring apparatus shown in FIG. 1, a plan view of the EEG measuring apparatus illustrated in FIG. 1, and a rear view of the EEG measuring apparatus illustrated in FIG. 1, respectively. It was.
  • the EEG measuring apparatus includes a frame 110, a fixture 120, and a plurality of electrode bodies 130.
  • the frame 110 is provided with a plurality of electrode body 130 for the EEG measurement, the electrode body 130 is fixed to the frame 110 by the fixing unit 120.
  • the frame 110 is provided with two electrode bodies 130, but there is no limitation on the number. It is also possible that three or more electrode bodies 130 are provided.
  • linear frame 110 shown in Figures 1 to 4 is also merely a simple example for convenience of description.
  • the frame 110 may be implemented in a curved (headset form) as well as a hemispherical (hat form) frame. When implemented in a hemispherical frame, it is preferable to further increase the number of the electrode body 130.
  • the electrode body 130 includes a support 140 and an electrode assembly 150.
  • the support 140 has an upper side fixed to the frame 110 and a lower side coupled to the electrode assembly 150.
  • the electrode assembly 150 is a structure in which a plurality of electrodes 155-1, 155-2, and 155-3 are physically combined into one.
  • the length of the support 140 is elastically variable
  • the direction of the electrode assembly 150 is variable
  • the length of the electrodes 155-1, 155-2 and 155-3 is elastically variable to be.
  • the length of the support 140 provided on the left side of the frame 110 and the length of the support 140 provided on the left side may vary. This is to allow the pressure applied to the scalp by the electrode assembly 150 to be constant for each electrode assembly 150.
  • the direction of the electrode assembly 150 provided on the left side of the frame 110 and the direction of the electrode assembly 150 provided on the right side may be different. This is to allow the electrodes 155-1, 155-2, and 155-3 provided on the electrode assembly 150 to be generally perpendicular to the scalp.
  • FIG 5 illustrates a state in which the direction of the electrode assembly 150 provided on the left side of the frame 110 and the direction of the electrode assembly 150 provided on the right side are changed differently.
  • the EEG measuring apparatus when the EEG measuring apparatus is in close contact with the head of the subject, the lengths of the electrodes 155-1, 155-2, and 155-3 provided in the electrode assembly 150 are also different, and the lengths of the EEG measuring apparatuses are individually changed without interrelation. It is a structure that can be.
  • variable length structure of the support 140 is a pressure applied by the electrode assembly 150 to the scalp, and ultimately a pressure applied by the electrodes 155-1, 155-2, and 155-3 provided on the electrode assembly 150 to the scalp. It is a means to coordinate them collectively and comprehensively.
  • variable length structure of the electrodes 155-1, 155-2, and 155-3 is used to individually and finely adjust the pressures applied to the scalp by the electrodes 155-1, 155-2, and 155-3. Means.
  • FIG. 6 is a cross-sectional view of the support 140 shown in FIGS. 1 to 5.
  • the support 140 includes a support body receptacle 141, a support spring 142, a support body 143, and a ball-joint 144.
  • a support spring 142 is accommodated in the support body accommodating part 141 and a portion of the support body 143 is received.
  • the support spring 142 has an upper end in contact with the fixture 120 and a lower end in contact with the support body 143.
  • Support body 143 is to provide a constant pressure on the scalp by the elastic force of the support spring (142).
  • the storage length of the support body 143 relative to the support body accommodating portion 141 is determined according to the degree of contraction of the support spring 142, and the length of the support 140 is determined by the accommodation length.
  • FIG. 7 is a cross-sectional view of the electrode assembly 150 illustrated in FIGS. 1 to 6.
  • the electrode assembly 150 includes a cover 151, a housing 152, a support plate 153, an electrode fixing part 154, and electrodes 155-1, 155-2, and 155-3. ).
  • the housing 152 accommodates the ball joint 144 provided under the support body 143, and the housing 152 and the ball joint 144 are coupled to the ball rotator by the cover 151.
  • the electrode assembly 150 may change the directions of the electrodes 155-1, 155-2, and 155-3 while ultimately performing a two-dimensional ball-rotation movement around the support 140. .
  • the electrodes 155-1, 155-2, and 155-3 are fixed at respective positions in the housing 152 by the electrode fixing part 154. As shown in the cross-sectional view of FIG. 7, the electrodes 155-1, 155-2, and 155-3 include an electrode body accommodating part 155-11, an electrode spring 155-12, and an electrode body 155-13. It is provided.
  • the electrode spring 155-12 is accommodated in the electrode body accommodating part 155-11, and a portion of the electrode body 155-13 is accommodated.
  • the upper end of the electrode spring 155-12 is in contact with the support plate 153, and the lower end is in contact with the electrode bodies 155-13.
  • the electrode bodies 155-13 provide a constant pressure to the scalp side by the elastic force of the electrode springs 155-12.
  • the storage length of the electrode body 155-13 with respect to the electrode body accommodating portion 155-11 is determined according to the degree of contraction of the electrode spring 155-12. 155-2 and 155-3) are determined.
  • the hybrid electrode is an electrode having a structure in which a gel 156 is coupled to an end of the electrode body 155-13, which is a portion where the scalp is in contact.
  • a groove may be formed at the end of the electrode bodies 155-13, and the gel 156 may be coupled to the electrode by attaching the gel 156 to the formed groove.
  • the electrode assembly 150 is illustrated and described as having three electrodes 155-1, 155-2, and 155-3 in the above embodiment, it is merely an example for convenience of description.
  • the number of electrodes provided in the electrode assembly 150 may be implemented as four or more but two or less.

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical 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)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Abstract

L'invention concerne un corps d'électrode pour mesure d'ondes cérébrales dans lequel la longueur et la direction des électrodes varient, et un appareil de mesure d'ondes cérébrales utilisant celui-ci. Selon un mode de réalisation de la présente invention, le corps d'électrode pour mesure d'ondes cérébrales comprend : des électrodes dont une extrémité vient en contact avec le cuir chevelu et dont la longueur varie ; et un corps de combinaison dans lequel les électrodes sont combinées. Ainsi, étant donné qu'il est possible de maintenir de manière uniforme la pression des électrodes appliquées sur le cuir chevelu, une mesure plus précise des ondes cérébrales est permise.
PCT/KR2013/007762 2012-09-10 2013-08-29 Corps d'électrode pour mesure d'ondes cérébrales dans lequel la longueur et la direction des électrodes varient, et appareil de mesure d'ondes cérébrales utilisant celui-ci WO2014038816A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2012-0099772 2012-09-10
KR1020120099772A KR101407967B1 (ko) 2012-09-10 2012-09-10 전극의 길이와 방향이 가변되는 뇌파 측정용 전극체 및 이를 이용한 뇌파 측정 장치

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WO2014038816A1 true WO2014038816A1 (fr) 2014-03-13

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KR (1) KR101407967B1 (fr)
WO (1) WO2014038816A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107007280A (zh) * 2017-05-02 2017-08-04 臧大维 一种超微头皮电极阵列
CN107928667A (zh) * 2017-11-28 2018-04-20 北京机械设备研究所 一种脑电采集湿电极
CN110179457A (zh) * 2019-05-31 2019-08-30 电子科技大学 一种柔性可穿戴多生理信号检测装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106963376B (zh) * 2017-04-07 2019-08-02 北京机械设备研究所 一种基于独立分圈缓冲结构的低阻抗脑电传感电极装置
US20200107741A1 (en) * 2018-10-09 2020-04-09 The Nielsen Company (Us), Llc Electrodes and electrode units for gathering electroencephalographic data

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006043024A (ja) * 2004-08-03 2006-02-16 Olympus Corp 脳機能検出装置
JP2008018017A (ja) * 2006-07-12 2008-01-31 Nou Kinou Kenkyusho:Kk 脳波測定用電極
JP2010511444A (ja) * 2006-12-08 2010-04-15 フラウンホファー−ゲゼルシャフト ツア フェデルンク デア アンゲヴァンテン フォルシュンク エーファウ 脳波計測のための乾式電極帽

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030088081A (ko) * 2002-05-11 2003-11-17 주식회사 이머시스 뇌파신호측정을 위한 전극, 앰프 일체형 전극시스템

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006043024A (ja) * 2004-08-03 2006-02-16 Olympus Corp 脳機能検出装置
JP2008018017A (ja) * 2006-07-12 2008-01-31 Nou Kinou Kenkyusho:Kk 脳波測定用電極
JP2010511444A (ja) * 2006-12-08 2010-04-15 フラウンホファー−ゲゼルシャフト ツア フェデルンク デア アンゲヴァンテン フォルシュンク エーファウ 脳波計測のための乾式電極帽

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107007280A (zh) * 2017-05-02 2017-08-04 臧大维 一种超微头皮电极阵列
CN107928667A (zh) * 2017-11-28 2018-04-20 北京机械设备研究所 一种脑电采集湿电极
CN110179457A (zh) * 2019-05-31 2019-08-30 电子科技大学 一种柔性可穿戴多生理信号检测装置

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KR20140034360A (ko) 2014-03-20
KR101407967B1 (ko) 2014-06-19

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