WO2015062561A1 - Électrode sèche pour l'enregistrement de potentiels biologiques à partir du cuir chevelu d'une tête - Google Patents

Électrode sèche pour l'enregistrement de potentiels biologiques à partir du cuir chevelu d'une tête Download PDF

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Publication number
WO2015062561A1
WO2015062561A1 PCT/CZ2014/000124 CZ2014000124W WO2015062561A1 WO 2015062561 A1 WO2015062561 A1 WO 2015062561A1 CZ 2014000124 W CZ2014000124 W CZ 2014000124W WO 2015062561 A1 WO2015062561 A1 WO 2015062561A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
teeth
skin
comb
scalp
Prior art date
Application number
PCT/CZ2014/000124
Other languages
English (en)
Inventor
Jan Kremlacek
Miroslav Kuba
Frantisek Vit
Original Assignee
Univerzita Karlova V Praze Lekarska Fakulta V Hradci Kralove
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 Univerzita Karlova V Praze Lekarska Fakulta V Hradci Kralove filed Critical Univerzita Karlova V Praze Lekarska Fakulta V Hradci Kralove
Publication of WO2015062561A1 publication Critical patent/WO2015062561A1/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]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6802—Sensor mounted on worn items
    • A61B5/6803—Head-worn items, e.g. helmets, masks, headphones or goggles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6814—Head

Definitions

  • the invention relates to a new dry electrode for registration of brain biopotentials (EEG, EP, and ERP; hereinafter EEG) from the scalp of the head, especially from the hairy part of the scalp of the head.
  • EEG brain biopotentials
  • Electrodes traditionally used for the EEG registration are in contact with the scalp by means of an electrolyte/gel.
  • the EEG amplifiers with a low noise level enable the use of so-called dry electrodes.
  • a system using dry electrodes represents an advantage in the electrode application— it does not require degreasing the skin and application of a gel, which represents a saving of time during the electrode application of up to tens of minutes (according to the number of electrodes) and thus it improves the comfort of the patient.
  • the existing dry electrodes for EEG recording in the hairy part of the head use a few discrete points, which provide the electrode contact with the skin.
  • all of these systems implement several spikes placed on a holder, e.g.
  • the present invention provides a dry electrode having a substantially comb-like shape, containing conductively interconnected teeth, wherein the length of the teeth is at least 70% of the length of the entire electrode.
  • This shape allows easy application of the electrode to the hairy part of a scalp and a good contact with the skin.
  • the electrode according to the invention is hereinafter called "comb electrode”.
  • the comb electrode is made from a conductive material (e.g., sheet metal, wire).
  • the material is flexible in order to adapt to the shape of the head.
  • the comb electrode has a soldering point outside of the electrode/skin contact to avoid a soldering/skin or a wire/skin electrochemical potential.
  • the teeth of the comb electrode are shaped to form at least one arc, thereby, the contact pressure to the scalp is ensured.
  • at least one tooth of the comb electrode is diverted in order to increase the contact pressure of the other teeth to the skin.
  • the comb electrode according to the invention does not require any mounting bracket, preferably it may be fixed at a specified location on a head by an elastic band or a hat.
  • the edges of the comb electrode are preferably adjusted to avoid skin injuries, i.e. the edges are rounded.
  • Individual teeth of the comb electrode have preferably width in the range from 0.5 to 3 mm and their spacing is in the range from 0.5 to 3 mm, in order to ensure easy penetration of the comb electrode through hair with regard to the hair quality and thickness, and at the same time to maximize the connection surface formed by the comb electrode teeth contacting the skin.
  • Fig. 1 represents one embodiment of the comb electrode made of sheet metal.
  • Fig. 2 represents the embodiment of Fig. 1 which has additionally a soldering point.
  • Fig. 3 shows another embodiment of the comb electrode made of wire.
  • Fig. 4 represents the embodiment of Fig. 3 which has additionally a soldering point.
  • Fig. 5 shows examples of shaping of the comb electrode to ensure a good contact with the skin - side view.
  • Fig. 6 illustrates the location of the comb electrode, for example, under an elastic strap. Examples of carrying out the Invention
  • Fig. 1 shows a substantially comb-shaped electrode A with teeth B, wherein the length c of the teeth B is at least 70 % of the length b of the electrode A.
  • This embodiment of the electrode is made of conductive sheet metal.
  • Fig. 2 shows the electrode A as in Fig. 1 which is additionally provided with a separate ending E for connecting the comb electrode A with a cable F.
  • the ending E thus serves as a soldering point.
  • the soldering point is insulated to avoid an electrochemical potential at a soldering/skin or at a wire/skin contact.
  • Fig. 3 shows another embodiment of the comb electrode A made of wire with a diameter of 0.5 mm.
  • Fig. 4 shows the electrode A as in Fig. 3 which is additionally provided with a separate ending E for connecting the comb electrode A with a cable F.
  • the ending E thus serves as a soldering point and preferably may be insulated.
  • Fig. 5 shows examples of suitable shaping of the comb electrode teeth into one or more arcs.
  • the middle design shows the case where one or two teeth are diverted to increase the pressure of the other teeth to the skin.
  • Fig. 6 shows the location of comb electrodes D on the head, while the electrodes D are fixed by a flexible belt C.
  • Individual teeth B of the comb electrode in any of the depicted embodiments have preferably width d in the range from 0.5 to 3 mm and their spacing e is in the range from 0.5 to 3 mm, in order to ensure easy penetration of the comb electrode through hair with regard to the hair quality and thickness, and at the same time to maximize the connection surface formed by the comb electrode teeth contacting the skin.
  • Particularly preferable size of the comb electrode (a b) is 20 * 23 mm with width d of the teeth B 1 mm, length c of the teeth B 18 mm and spacing e 1 mm.

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)
  • Electrotherapy Devices (AREA)

Abstract

La présente invention concerne une électrode sèche (A) pour l'enregistrement de potentiels biologiques à partir du cuir chevelu d'une tête, laquelle électrode a sensiblement la forme d'un peigne comprenant des dents reliées de façon conductrice (B), la longueur (c) des dents (B) étant d'au moins 70 % de la longueur (b) de l'électrode entière (A). Cette forme permet une application facile de l'électrode sur la partie chevelue du cuir chevelu, et un bon contact avec la peau.
PCT/CZ2014/000124 2013-10-30 2014-10-30 Électrode sèche pour l'enregistrement de potentiels biologiques à partir du cuir chevelu d'une tête WO2015062561A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZPV2013-831 2013-10-30
CZ2013-831A CZ304875B6 (cs) 2013-10-30 2013-10-30 Suchá elektroda pro registraci biopotenciálů z vlasaté části hlavy

Publications (1)

Publication Number Publication Date
WO2015062561A1 true WO2015062561A1 (fr) 2015-05-07

Family

ID=51945656

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CZ2014/000124 WO2015062561A1 (fr) 2013-10-30 2014-10-30 Électrode sèche pour l'enregistrement de potentiels biologiques à partir du cuir chevelu d'une tête

Country Status (2)

Country Link
CZ (1) CZ304875B6 (fr)
WO (1) WO2015062561A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3025955A1 (de) * 1980-07-09 1982-01-21 Forschungsgesellschaft für Biomedizinische Technik, 5100 Aachen Ableitelektrode zur aufnahme bioelektrischer aktivitaet von behaarten koerperregionen
US4967038A (en) 1986-12-16 1990-10-30 Sam Techology Inc. Dry electrode brain wave recording system
DE20300767U1 (de) * 2003-01-14 2003-03-20 Institut für Agrar- und Stadtökologische Projekte an der Humboldt-Universität zu Berlin, 10115 Berlin Körperelektrode zur Messung elektrischer Potenziale auf einer mit Haaren oder Fell bewachsenen Hautoberfläche eines Lebewesens
WO2008067839A1 (fr) * 2006-12-08 2008-06-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Casquette d'électrodes sèches pour électoro-encéphalographie
EP2172152A1 (fr) * 2008-10-06 2010-04-07 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO Électrode pour applications médicales
US20110046503A1 (en) * 2009-08-24 2011-02-24 Neurofocus, Inc. Dry electrodes for electroencephalography
US20110237923A1 (en) 2010-03-24 2011-09-29 Brain Products Gmbh Dry electrode for detecting eeg signals and attaching device for holding the dry electrode
EP2449961A1 (fr) * 2009-06-29 2012-05-09 Sony Corporation Appareil de mesure de signaux biologiques
DE202012103726U1 (de) * 2012-09-28 2012-10-16 Leibniz-Institut für Neurobiologie Magdeburg Elektrodenvorrichtung
WO2012150528A1 (fr) 2011-05-03 2012-11-08 Koninklijke Philips Electronics N.V. Ensemble d'électrodes destiné à être en contact avec la peau

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3025955A1 (de) * 1980-07-09 1982-01-21 Forschungsgesellschaft für Biomedizinische Technik, 5100 Aachen Ableitelektrode zur aufnahme bioelektrischer aktivitaet von behaarten koerperregionen
US4967038A (en) 1986-12-16 1990-10-30 Sam Techology Inc. Dry electrode brain wave recording system
DE20300767U1 (de) * 2003-01-14 2003-03-20 Institut für Agrar- und Stadtökologische Projekte an der Humboldt-Universität zu Berlin, 10115 Berlin Körperelektrode zur Messung elektrischer Potenziale auf einer mit Haaren oder Fell bewachsenen Hautoberfläche eines Lebewesens
WO2008067839A1 (fr) * 2006-12-08 2008-06-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Casquette d'électrodes sèches pour électoro-encéphalographie
EP2172152A1 (fr) * 2008-10-06 2010-04-07 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO Électrode pour applications médicales
EP2449961A1 (fr) * 2009-06-29 2012-05-09 Sony Corporation Appareil de mesure de signaux biologiques
US20110046503A1 (en) * 2009-08-24 2011-02-24 Neurofocus, Inc. Dry electrodes for electroencephalography
US20110237923A1 (en) 2010-03-24 2011-09-29 Brain Products Gmbh Dry electrode for detecting eeg signals and attaching device for holding the dry electrode
WO2012150528A1 (fr) 2011-05-03 2012-11-08 Koninklijke Philips Electronics N.V. Ensemble d'électrodes destiné à être en contact avec la peau
DE202012103726U1 (de) * 2012-09-28 2012-10-16 Leibniz-Institut für Neurobiologie Magdeburg Elektrodenvorrichtung

Also Published As

Publication number Publication date
CZ2013831A3 (cs) 2014-12-17
CZ304875B6 (cs) 2014-12-17

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