WO1999022642A1 - Coiffe d'electrodes universelle pour eeg - Google Patents

Coiffe d'electrodes universelle pour eeg Download PDF

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Publication number
WO1999022642A1
WO1999022642A1 PCT/HR1998/000007 HR9800007W WO9922642A1 WO 1999022642 A1 WO1999022642 A1 WO 1999022642A1 HR 9800007 W HR9800007 W HR 9800007W WO 9922642 A1 WO9922642 A1 WO 9922642A1
Authority
WO
WIPO (PCT)
Prior art keywords
rubber
universal
electrode
cap
holder
Prior art date
Application number
PCT/HR1998/000007
Other languages
English (en)
Inventor
Milica Pavic
Original Assignee
Milica Pavic
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 Milica Pavic filed Critical Milica Pavic
Publication of WO1999022642A1 publication Critical patent/WO1999022642A1/fr

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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
    • A61B5/25—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

  • a spring holder of the connection wire 2 is mechanically connected, which has on the other end a "banana” plug 1, which is connected to the connection box of the appliance.
  • the bottom part of the metal electrodes 3 is coated with a hygroscope cloth or natural leather 5, which is fixed on the electrode by a rubber ring 6.
  • the second type of EEG cap is made out of elastic cloth in the form of a bathing cap in which the electrodes are built in.
  • the big lack is that the cap is closed, and it causes sweating (big interference) when recording, and the electrodes cannot be accessed by the technician.
  • An injection needle with a blunt peak applies the contact gel, and there is a big possibility of damaging the skin on the head up to bleeding.
  • Elastic cloth stretches very fast, and the arrangement of the electrodes does not satisfy the International 10-20 system.
  • the universal EEG cap is made out of foam rubber strings of round shape diameter 5 mm, which makes a net of vertically and horizontally laid rubber strings which are tied by round plastic fixtures, the plastic fixtures also have a purpose of measuring the size of the cap based on the International system 10-20.
  • the horizontal rubber strings on its ends pass through the lateral fixtures, with which the lateral segments by the International system 10-20 are distinguished.
  • the rubber strings are then put through the holders on the Velcro tape.
  • Velcro tape is used for fixing the cap on the patient's head.
  • the vertical rubber strings on the front and rear part of the cap finish with a knot. These knots limit the size of the cap on the vertical line by the International system 10-20.
  • the plastic supports with the electrodes are built in the net, twenty-one of them, with measures responding to the International 10-20 system.
  • the connection wires go out of the plastic support and finish up in a multi-cord cable with a 25-pin connector.
  • the cap is made in six different sizes from child to adults.
  • the process of recording is also shortened in time because the interference is put to minimum or totally eliminated. In whole, the time for preparing and recording the patient is lowered down to 50% compared with the conventional ways of recording.
  • each electrode is possible if necessary, and the inspection of skin under the electrode (cases of erosion, nevus, etc).
  • the construction of the cap is compatible with all appliances for registration of different manufacturers, either directly, or by an adapter cable.
  • Fig. 1 shows the cross-sectional view of the conventional electrode familiar from the description of the prior art.
  • Fig. 2a shows the schematic representation of electrodes based on the International 10-20 system
  • Fig 2b shows the side view of the scheme of electrodes based on the
  • FIG 3 shows the top view of the EEG cap based on the invention, before putting the cap on the head of the patient
  • Fig 4a shows the EEG cap fixed under the chin
  • Fig 4b shows the EEG cap fixed on the belt put on the chest of the patient in the line of the armpit
  • Fig 5a shows the cross-sectional view of the EEG electrode
  • Fig 5b shows the top view of the EEG electrode
  • Fig 5 c shows the perspective view of the EEG electrode watched from above
  • Fig 5d shows the perspective view of the EEG electrode watched from underneath
  • Fig 6a shows the plastic holder for the electrode - top view
  • Fig 6b shows the plastic holder for the electrode watched from behind
  • Fig 6c shows the plastic holder for the electrode - cross-sectional view
  • Fig 6d shows the plastic holder for the electrode - perspective view
  • Fig 7 shows the electrode built in the plastic holder of the electrode
  • Fig 8a shows the round plastic fixture for the rubber net
  • Fig 8b shows the round plastic fixture for the rubber net - top view
  • Fig 8c shows the round plastic fixture for the rubber net - perspective view
  • Fig 9a shows the lateral fixture for the rubber net
  • Fig 9b shows the lateral fixture for the rubber net - side view
  • Fig 9c shows the lateral fixture for the rubber net - top view
  • Fig 9d shows the lateral fixture for the rubber net - perspective view
  • Fig 10a shows the holder of the Velcro tape - cross-sectional view
  • Fig 10b shows the holder of the Velcro tape - side view
  • Fig 10c shows the holder of the Velcro tape - top view
  • Fig lOd shows the holder of the Velcro tape - perspective view
  • the universal Comby EEG cap 30 is made out of round shape 5-mm diameter foam rubber strings, which make up a net of horizontal 9 and vertical 10 rubber strips which are tied by round plastic fixtures 8.
  • the horizontal rubber on its ends passes through lateral fixtures 16, and ends up in holders for the Velcro tape 17.
  • the Velcro tape 14 and 15 is used for fixing the cap on the patient's head.
  • the vertical rubber 9, on the front and the rear of the cap finish with a knot 18.
  • the net has built-in plastic holders with electrodes 40, twenty-one of them, which are arranged by the measures responding to the International 10-20 system.
  • Fig 2a and 2b The net has built-in plastic holders with electrodes 40, twenty-one of them, which are arranged by the measures responding to the International 10-20 system.
  • connection wires which finish in a multi cord cable with a 25-pin connector.
  • the cap is made in six different sizes from children to adults, Fig 2a and 2b.
  • the plastic fixtures 8 shown on the pictures 8a - 8c which have four holes 36, the rubber string is pulled through, vertically and horizontally.
  • the rubber is sharpened 10 before pulling it through, and it has to be stretched in order to make the diameter smaller and in order to ease the pulling through.
  • the round fixture is put on the desired place, the rubber becomes less tense; the diameter of the rubber becomes bigger, and in that way fixes the vertical and horizontal strings.
  • the cap has built in twenty round fixtures 8, in order to gain segments where the holders with the electrodes are built in.
  • the horizontal rubber strings 10, with both sides are put through the lateral fixture of the rubber 16, through holes 37, shown on Fig 9a - 9d. Holes 37, have a smaller diameter than the rubber strings so the fixture does not allow the movement of the rubber itself, and it stays on the desired place.
  • With the lateral fixture we also determine the distance on the lateral segments of the cap related to the International 10-20 system. In that way we get twenty evenly arranged segments that are used for fitting the holders with electrodes 40, twenty-one of them.
  • Electrode 19 is consisting of a metal round tile thick 0,3 mm 33, to which the connection wire 11 is soldered on the bottom 34, and then pulled to the metal part through the tube of the extension 23, of the plastic part of the electrode.
  • the metal part is pressed into the area on the plastic part of the electrode 22, 1.2 mm deep in a way that it leaves space (container) 35, where the contact gel is applied, this is all on Fig 5a - 5d.
  • prepared electrodes are fitted into the plastic holders 7, shown on picture 6a - 6c, which are before fitted on the horizontal profile rubber strings 9, through the holes for pulling through the rubber 31, on which is extended the indent for rubber 32, in the middle part of the holder.
  • the place for the electrode holders are exactly by the measurements, related to the International system 10-20.
  • the indent for the rubber on electrode 21, and the holder 32 make up a cylinder area of a smaller diameter than the rubber, so with the fitting of the electrode into the holder we achieve the fixation of the holder with electrode 40, on a desired place.
  • the rubber strings are put through holes 38, holder of the Velcro tape 17, shown on Fig 10a - 10c. Holes 38, are also of a lesser diameter so the rubber would be fixed after passing through them.
  • the finish of the horizontal rubber 10, is of a sharp shape as it could be seen enlarged on Fig 3. That makes possible easy passing of the rubber strings through the round holder of the rubber 8, lateral fixture of the rubber 16, and the holder of Velcro tape 17.
  • the Velcro tape 14 and 15 is fitted on the holder of the Velcro tape 17, which is on one side rough 14 and on the other side smooth 15, so they could stick together and fix the cap on the patients head.
  • the cap is possible to fix on the patients head in two ways as seen on Fig 4 a and

Landscapes

  • 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)
  • Finger-Pressure Massage (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

L'invention porte sur une coiffe d'électrodes universelle pour EEG (30) consistant en un filet de bandes de caoutchouc mousse horizontales (10) et verticales (9) interconnectées par des anneaux (8). En faisant passer les bandes à travers les anneaux, on constitue des segments sur lesquels on peut facilement déterminer la position des anneaux par rapport à des électrodes (40), au nombre de 21 selon la norme internationale 10-20. Sur les côtés, les bandes passent par des supports latéraux à 5 trous (16), d'où elles se fixent à une attache (17) solidaire d'une bande Velcro®. La bande Velcro® (14, 15) maintient la coiffe sur la tête du patient en passant sous le menton ou en se prolongeant par une ceinture. De chaque support d'électrode part un fil (11) conducteur qui pénètre dans un tube partant du sommet de la tête; ainsi les fils ne saillent ni ne s'emmêlent d'où l'aspect très net de la coiffe. Les fils pénètrent ensuite dans un boîtier et en ressortent sous forme d'un câble multibrin terminé par un connecteur à 25 broches. La coiffe se fait en 6 tailles différentes correspondant aux enfants et aux adultes conformément à la norme internationale 10-20.
PCT/HR1998/000007 1997-11-04 1998-11-04 Coiffe d'electrodes universelle pour eeg WO1999022642A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HRP970562A 1997-11-04
HR970562A HRP970562A2 (en) 1997-11-04 1997-11-04 Universal eeg cap

Publications (1)

Publication Number Publication Date
WO1999022642A1 true WO1999022642A1 (fr) 1999-05-14

Family

ID=10946640

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HR1998/000007 WO1999022642A1 (fr) 1997-11-04 1998-11-04 Coiffe d'electrodes universelle pour eeg

Country Status (2)

Country Link
HR (1) HRP970562A2 (fr)
WO (1) WO1999022642A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002041774A1 (fr) * 2000-11-22 2002-05-30 Carl Zeiss Jena Gmbh Dispositif et procede permettant une detection orientee dans l'espace de l'electroencephalogramme
US7054681B2 (en) 2000-11-22 2006-05-30 Carl Zeiss Jena Gmbh Device and method for carrying out spatially directed detection of an electroencephalogram
WO2012046237A3 (fr) * 2010-10-07 2012-07-05 The Medical Research, Infrastructure, And Health Services Fund Of The Tel Aviv Medical Center Dispositif permettant des mesures de signaux électro-biologiques en présence d'un champ magnétique
WO2012156643A1 (fr) 2011-05-19 2012-11-22 Université de Picardie Jules Verne Dispositif pour la mesure des signaux de l'activite cerebrale
GB2499595A (en) * 2012-02-21 2013-08-28 James Roche Infant EEG electrode system
WO2016079436A1 (fr) 2014-11-21 2016-05-26 Centre Hospitalier Universitaire Dispositif pour la mesure des signaux de l'activite cerebrale d'un individu

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3747590A (en) * 1971-06-21 1973-07-24 Nat Cable Molding Corp Biopotential electrode
US3998213A (en) * 1975-04-08 1976-12-21 Bio-Volt Corporation Self-adjustable holder for automatically positioning electroencephalographic electrodes
EP0541393A1 (fr) * 1991-11-08 1993-05-12 Physiometrix, Inc. Support et procédé d'utilisation destinés à des électrodes EEG, jetées après l'emploi
US5293867A (en) * 1992-09-24 1994-03-15 Oommen Kalarickal J Method and apparatus for marking electrode locations for electroencephalographic procedure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3747590A (en) * 1971-06-21 1973-07-24 Nat Cable Molding Corp Biopotential electrode
US3998213A (en) * 1975-04-08 1976-12-21 Bio-Volt Corporation Self-adjustable holder for automatically positioning electroencephalographic electrodes
EP0541393A1 (fr) * 1991-11-08 1993-05-12 Physiometrix, Inc. Support et procédé d'utilisation destinés à des électrodes EEG, jetées après l'emploi
US5293867A (en) * 1992-09-24 1994-03-15 Oommen Kalarickal J Method and apparatus for marking electrode locations for electroencephalographic procedure

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002041774A1 (fr) * 2000-11-22 2002-05-30 Carl Zeiss Jena Gmbh Dispositif et procede permettant une detection orientee dans l'espace de l'electroencephalogramme
US7054681B2 (en) 2000-11-22 2006-05-30 Carl Zeiss Jena Gmbh Device and method for carrying out spatially directed detection of an electroencephalogram
WO2012046237A3 (fr) * 2010-10-07 2012-07-05 The Medical Research, Infrastructure, And Health Services Fund Of The Tel Aviv Medical Center Dispositif permettant des mesures de signaux électro-biologiques en présence d'un champ magnétique
US9636019B2 (en) 2010-10-07 2017-05-02 The Medical Research, Infrastructure, And Health Services Fund Of The Tel-Aviv Medical Center Device for use in electro-biological signal measurement in the presence of a magnetic field
WO2012156643A1 (fr) 2011-05-19 2012-11-22 Université de Picardie Jules Verne Dispositif pour la mesure des signaux de l'activite cerebrale
FR2975276A1 (fr) * 2011-05-19 2012-11-23 Univ Picardie Dispositif pour la mesure des signaux de l’activite cerebrale
GB2499595A (en) * 2012-02-21 2013-08-28 James Roche Infant EEG electrode system
WO2016079436A1 (fr) 2014-11-21 2016-05-26 Centre Hospitalier Universitaire Dispositif pour la mesure des signaux de l'activite cerebrale d'un individu
US11272880B2 (en) 2014-11-21 2022-03-15 Centre Hospitalier Universitaire Device for measuring the brain activity signals of an individual

Also Published As

Publication number Publication date
HRP970562A2 (en) 2000-10-31

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