EP2833787A1 - Stand-alone electronic apparatus and device for fastening the latter to an electrode located on the head of a patient for use when the patient is lying down - Google Patents

Stand-alone electronic apparatus and device for fastening the latter to an electrode located on the head of a patient for use when the patient is lying down

Info

Publication number
EP2833787A1
EP2833787A1 EP13701576.4A EP13701576A EP2833787A1 EP 2833787 A1 EP2833787 A1 EP 2833787A1 EP 13701576 A EP13701576 A EP 13701576A EP 2833787 A1 EP2833787 A1 EP 2833787A1
Authority
EP
European Patent Office
Prior art keywords
electrode
magnet
electronic device
rare earth
patient
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.)
Withdrawn
Application number
EP13701576.4A
Other languages
German (de)
French (fr)
Inventor
Pierre-Yves Muller
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.)
Cefaly Technology SPRL
Original Assignee
Cefaly Technology SPRL
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 Cefaly Technology SPRL filed Critical Cefaly Technology SPRL
Publication of EP2833787A1 publication Critical patent/EP2833787A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/0404—Electrodes for external use
    • A61N1/0472—Structure-related aspects
    • A61N1/0492—Patch electrodes
    • 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
    • A61B5/24—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]
    • A61B5/375—Electroencephalography [EEG] using biofeedback
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/0404—Electrodes for external use
    • A61N1/0408—Use-related aspects
    • A61N1/0456—Specially adapted for transcutaneous electrical nerve stimulation [TENS]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/0404—Electrodes for external use
    • A61N1/0472—Structure-related aspects
    • A61N1/048—Electrodes characterised by a specific connection between lead and electrode
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/04—Constructional details of apparatus
    • A61B2560/0406—Constructional details of apparatus specially shaped apparatus housings
    • A61B2560/0412—Low-profile patch shaped housings

Definitions

  • the present invention relates to the field of devices either providing electrical impulses at the body, in particular the skull, for neurostimulation purposes, or receiving electrical pulses by biofeedback.
  • Neurostimulation is a well-known technique that consists of using electrical pulses to generate action potentials on nerves.
  • a problem that arises in the application of this method is that the neurostimulation apparatus according to the state of the art still contain cables for connecting the electronic device to the contact electrode with the skin. These cables are clearly a brake to use in any application related to sleep. They can indeed easily wrap on the patient and pick up the electrode. They thus force the patient to maintain a stable position during sleep, which is not the case if his sleep is somewhat agitated.
  • US 4,112,941 discloses the assembly of an improved biomedical electrode and a connector.
  • the latter comprises a magnet facilitating coupling with a protruding part of the electrode.
  • the electrical contact between the connector and the electrode is along the projecting portion to form a gap between the connector and the electrode plate. This space serves to provide some game to the assembly.
  • the invention aims to allow the attachment of a small autonomous electronic device on the body of a patient, in particular the skull, in applications requiring the supine position of the patient.
  • the invention aims to allow the stimulation of the upper branch of the trigeminal nerve in a comfortable, simple and compatible with use during sleep.
  • a first aspect of the present invention relates to a self-contained apparatus for attachment to a body portion, comprising a bipolar flat support electrode provided on one side with a conductive adhesive gel for adhesion to the skin.
  • a light electronic device capable of generating or receiving electric currents respectively to or from the body, via the electrode, means for mechanically fastening the electronic apparatus to the electrode and means for the passage of electric current from the electronic device to the electrode and vice versa
  • said fixing means comprise two permanent magnets located on the electronic device, electrically conductive and each adapted to cooperate with a magnetizable metal area located on the face of the opposite electrode to the face intended to be in contact with the skin.
  • the apparatus according to the invention further comprises one or a suitable combination of the following characteristics:
  • the magnetizable metal zone consists of a ferromagnetic surface
  • the ferromagnetic surface contains iron, cobalt, nickel and / or one of their alloys
  • the two permanent magnets are electrically conductive or coated with an electrical conductor which allows the passage of current between the apparatus and the electrode;
  • each permanent magnet is a rare earth alloy magnet
  • the rare earth alloy magnet is a neodymium iron boron magnet; the rare earth alloy magnet is a samarium-cobalt magnet;
  • the rare earth alloy magnet is coated with a layer of nickel, copper, zinc, chromium, gold, silver or epoxy resin;
  • the rare earth alloy magnet has a maximum energy product BH max of between 30 and 52 MGOe;
  • each permanent magnet is cylindrical with an axis perpendicular to the surface of the apparatus intended to come into contact with the electrode;
  • the electronic device has a flat housing and approximate diamond shape
  • the electrode comprises two circular magnetizable zones whose respective centers have the same spacing as the respective centers of the two magnets located on the electronic apparatus, on its face intended to contact the electrode.
  • Another aspect of the present invention relates to a use of the above apparatus for the stimulation of supraorbital and supraorbital afferents of the upper branch of the trigeminal nerve for activity recording.
  • bioelectric in a biofeedback application or, more generally, in the context of an application where the patient is in a supine position or for an application during sleep.
  • Figure 1 shows an embodiment of autonomous electronic device for front fixing at the head, according to the present invention.
  • FIG. 2 represents an embodiment of an electrode suitable for fixing the electronic device according to FIG. 1. Detailed description of the invention
  • the object of the invention is an assembly consisting of an autonomous electronic device, that is to say without wires or cables and powered by a rechargeable battery, and an electrode allowing it to attaching to a body part, preferably the head, preferably the forehead, so as to stimulate the muscles and / or nerves, or to record the bioelectrical activity of the patient.
  • the electrode according to the invention is a bipolar electrode with dimensions chosen to be comfortable to use and to stimulate the supraorbital and supratrochlear afferents of the upper branch of the trigeminal nerve (for a form of execution modality and preferred dimensions, see US 2009/0210028). It has, on its inner side, a layer of self-adhesive gel allowing an autonomous adhesion on the skin of the skull and, on its external face, a magnetizable metal part (for example of soft iron).
  • the apparatus according to the invention is provided with at least two powerful permanent magnets, preferably two magnets, which allow:
  • the electrode-apparatus system is maintained permanently and allows use by the patient in supine position;
  • the magnets are attracted by the magnetizable parts on the electrode and thus position themselves spontaneously in the appropriate places. This allows to reposition the device without the need for light (for example during the night), or mirror;
  • the magnetization connection avoids the mechanical forces on potentially fragile parts of an electrode
  • the magnets remain motionless, unlike a mechanical type connection that can move during a head movement for example or that can generate games by repeated use .
  • the apparatus is designed in materials chosen to be made very light, which avoids exercising too much stress on the electrode and prevents it from peeling off.
  • the connector magnet could also allow a facilitated connection in the use of an occipital stimulation headband.
  • the apparatus 2 has a generally diamond-shaped flat shape, as shown in FIG. 1.
  • the two magnets 4 are advantageously of the Neodymium NdFeB sintered type (neodymium-iron). boron). They can be optionally coated or coated with a metal layer, for example nickel, copper, zinc, chromium, gold, silver, etc., or partially epoxy resin, so as to provide protection against corrosion or improve the passage electric current. They have a bond strength of the order of 250 g and a maximum energy product (BH max ) of the order of 48 MGOe.
  • the magnets 4 are cylindrical.
  • the electrode 1 is a bipolar gel self-adhesive electrode and has on its outer face, as shown in Figure 2, two circular magnetizable zones 3, whose centers have the same spacing (or center distance) as the respective centers of two magnets 4 on the device 2.

Abstract

Stand-alone apparatus intended to be fastened to a body part, comprising a bipolar electrode (1), a light electronic device (2), means for mechanically fastening the electronic apparatus (2) to the electrode (1) and means for making an electrical current flow from the electronic apparatus (2) to the electrode (1) and vice versa. Said fastening means comprise, located on the electronic apparatus (2), two electrically conductive permanent magnets (4) each of which is able to interact with a magnetizable metal zone (3) located on the face of the electrode (1) opposite the face intended to make contact with the skin.

Description

APPAREIL ELECTRONIQUE AUTONOME ET DISPOSITIF DE FIXATION DE CELUI-CI SUR UNE ELECTRODE LOCALISEE AU NIVEAU DE LA TETE POUR UNE UTILISATION EN POSITION COUCHEE DU PATIENT AUTONOMOUS ELECTRONIC APPARATUS AND DEVICE FOR FASTENING THE SAME ON A HEAD LOCATED ELECTRODE FOR THE LAYERED POSITION OF THE PATIENT
Objet de l'invention Object of the invention
[0001] La présente invention se rapporte au domaine des appareils soit fournissant des impulsions électriques au niveau du corps, en particulier du crâne, à des fins de neurostimulation, soit recevant des impulsions électriques par rétroaction biologique (biofeedback) .  The present invention relates to the field of devices either providing electrical impulses at the body, in particular the skull, for neurostimulation purposes, or receiving electrical pulses by biofeedback.
Etat de la technique State of the art
[0002] La neurostimulation est une technique bien connue qui consiste à utiliser des impulsions électriques pour générer des potentiels d'action sur des nerfs.  [0002] Neurostimulation is a well-known technique that consists of using electrical pulses to generate action potentials on nerves.
[0003] Il a été démontré récemment que la stimulation de la branche supérieure du nerf trijumeau avait un effet sédatif chez l' homme (Supraorbital transcutaneous neurostimulation has sédative effects in healthy subjects, Piquet M., Balestra C, Sava S. L., Schoenen J. E., BMC Neurology 2011, 11:135). Cet effet pourrait être utile aux sujets souffrant d'insomnie. La méthode thérapeutique correspondante fait l'objet de la demande de brevet US 13/101,495 (publiée sous le numéro US 2011/0282129). [0003] It has recently been demonstrated that stimulation of the upper branch of the trigeminal nerve has a sedative effect in humans (Pratet M., Balestra C, Sava SL, Schoenen JE, BMC Neurology 2011, 11: 135). This effect may be useful for people with insomnia. The corresponding therapeutic method is the subject of US patent application 13 / 101,495 (published under number US 2011/0282129).
[0004] Un problème qui se pose dans l'application de cette méthode est que les appareils de neurostimulation selon l'état de la technique contiennent toujours des câbles permettant de connecter l'appareil électronique à l'électrode de contact avec la peau. Ces câbles sont clairement un frein à une utilisation dans toute application en relation avec le sommeil. Ils risquent en effet facilement de s'enrouler sur le patient et de décrocher l'électrode. Ils obligent donc le patient à garder une position stable durant le sommeil, ce qui n'est pas le cas si son sommeil est quelque peu agité. A problem that arises in the application of this method is that the neurostimulation apparatus according to the state of the art still contain cables for connecting the electronic device to the contact electrode with the skin. These cables are clearly a brake to use in any application related to sleep. They can indeed easily wrap on the patient and pick up the electrode. They thus force the patient to maintain a stable position during sleep, which is not the case if his sleep is somewhat agitated.
[0005] Récemment la société STX-Med (Herstal, Belgique) a développé un appareil pour stimuler le nerf trijumeau sur la partie frontale du crâne (Apparatus for electro- inhibition of facial muscles, WO 2006/063417 ; Device for the electrotherapeutic treatment of tension headaches, US 2009/0210028). Cet appareil autonome n'utilise pas de câbles, mais des branches latérales à la façon des lunettes pour localiser l'électrode au niveau du front. Néanmoins, ces branches constituent, de la même manière que les câbles, une gêne pour les patients en position couchée. [0005] Recently STX-Med (Herstal, Belgium) has developed an apparatus for stimulating the trigeminal nerve on the frontal part of the skull (Apparatus for electro-inhibition of facial muscles, WO 2006/063417; tension headaches, US 2009/0210028). This autonomous device does not use cables, but side branches like glasses to locate the electrode at the forehead. However, these branches are, in the same way as the cables, an inconvenience for patients in supine position.
[0006] Le document US 4,112,941 divulgue l'assemblage d'une électrode biomédicale améliorée et d'un connecteur. Ce dernier comporte un aimant facilitant le couplage avec une partie saillante de l'électrode. Le contact électrique entre le connecteur et l'électrode se fait le long de la partie saillante de manière à former un espace entre le connecteur et le plat de l'électrode. Cet espace sert à fournir un certain jeu à l'assemblage. [0006] US 4,112,941 discloses the assembly of an improved biomedical electrode and a connector. The latter comprises a magnet facilitating coupling with a protruding part of the electrode. The electrical contact between the connector and the electrode is along the projecting portion to form a gap between the connector and the electrode plate. This space serves to provide some game to the assembly.
Buts de 1 ' invention Aims of the invention
[0007] L'invention vise à permettre la fixation d'un appareil électronique autonome de petite taille sur le corps d'un patient, en particulier le crâne, dans des applications requérant la position couchée du patient.  The invention aims to allow the attachment of a small autonomous electronic device on the body of a patient, in particular the skull, in applications requiring the supine position of the patient.
[0008] En particulier, l'invention a pour but de permettre la stimulation de la branche supérieure du nerf trijumeau d'une manière confortable, simple et compatible avec une utilisation pendant le sommeil. Principaux éléments caractéristiques de l'invention In particular, the invention aims to allow the stimulation of the upper branch of the trigeminal nerve in a comfortable, simple and compatible with use during sleep. Main characteristic elements of the invention
[0009] Un premier aspect de la présente invention se rapporte à un appareil autonome destiné à être fixé sur une partie du corps, comprenant une électrode bipolaire à support plat munie sur une face d'un gel autocollant conducteur pour l'adhésion à la peau, un dispositif électronique léger capable de générer ou de recevoir des courants électriques respectivement vers ou à partir du corps, via l'électrode, des moyens de fixation mécanique de l'appareil électronique à l'électrode et des moyens permettant le passage du courant électrique de l'appareil électronique à l'électrode et vice versa, caractérisé en ce que lesdits moyens de fixation comprennent deux aimants permanents localisés sur l' appareil électronique, électriquement conducteurs et aptes chacun à coopérer avec une zone métallique aimantable localisée sur la face de l'électrode opposée à la face destinée à être en contact avec la peau. A first aspect of the present invention relates to a self-contained apparatus for attachment to a body portion, comprising a bipolar flat support electrode provided on one side with a conductive adhesive gel for adhesion to the skin. a light electronic device capable of generating or receiving electric currents respectively to or from the body, via the electrode, means for mechanically fastening the electronic apparatus to the electrode and means for the passage of electric current from the electronic device to the electrode and vice versa, characterized in that said fixing means comprise two permanent magnets located on the electronic device, electrically conductive and each adapted to cooperate with a magnetizable metal area located on the face of the opposite electrode to the face intended to be in contact with the skin.
[0010] Selon des modes d' exécution préférés, l'appareil selon l'invention comporte en outre une ou une combinaison appropriée des caractéristiques suivantes : According to preferred embodiments, the apparatus according to the invention further comprises one or a suitable combination of the following characteristics:
- la zone métallique aimantable est constituée d'une surface ferromagnétique ;  the magnetizable metal zone consists of a ferromagnetic surface;
- la surface ferromagnétique contient du fer, du cobalt, du nickel et/ou un de leurs alliages ;  the ferromagnetic surface contains iron, cobalt, nickel and / or one of their alloys;
- les deux aimants permanents sont conducteurs électriquement ou enrobés d'un conducteur électrique qui permet le passage du courant entre l'appareil et l'électrode ;  the two permanent magnets are electrically conductive or coated with an electrical conductor which allows the passage of current between the apparatus and the electrode;
- chaque aimant permanent est un aimant en alliage de terres rares ;  each permanent magnet is a rare earth alloy magnet;
- l'aimant en alliage de terres rares est un aimant néodyme-fer-bore ; - l'aimant en alliage de terres rares est un aimant samarium-cobalt ; the rare earth alloy magnet is a neodymium iron boron magnet; the rare earth alloy magnet is a samarium-cobalt magnet;
- l'aimant en alliage de terres rares est enrobé d'une couche de nickel, cuivre, zinc, chrome, or, argent ou résine époxy ;  the rare earth alloy magnet is coated with a layer of nickel, copper, zinc, chromium, gold, silver or epoxy resin;
- l'aimant en alliage de terres rares a un produit énergétique maximum BHmax compris entre 30 et 52 MGOe ;the rare earth alloy magnet has a maximum energy product BH max of between 30 and 52 MGOe;
- chaque aimant permanent est cylindrique d'axe perpendiculaire à la surface de l'appareil destinée à entrer en contact avec l'électrode ; each permanent magnet is cylindrical with an axis perpendicular to the surface of the apparatus intended to come into contact with the electrode;
- l'appareil électronique a un boîtier plat et de forme approximative en losange ;  - The electronic device has a flat housing and approximate diamond shape;
- l' électrode comporte deux zones aimantables circulaires dont les centres respectifs possèdent le même écartement que les centres respectifs des deux aimants localisés sur l'appareil électronique, sur sa face destinée à contacter l'électrode.  the electrode comprises two circular magnetizable zones whose respective centers have the same spacing as the respective centers of the two magnets located on the electronic apparatus, on its face intended to contact the electrode.
[0011] Un autre aspect de la présente invention se rapporte à une utilisation de l'appareil ci-dessus pour la stimulation des afférences supraorbitaire et s up r a t r o ch 1 é a i r e de la branche supérieure du nerf trijumeau, pour un enregistrement d'activité bioélectrique dans une application de biofeedback ou, plus généralement, dans le cadre d'une application où le patient est en position couchée ou pour une application durant le sommeil. [0011] Another aspect of the present invention relates to a use of the above apparatus for the stimulation of supraorbital and supraorbital afferents of the upper branch of the trigeminal nerve for activity recording. bioelectric in a biofeedback application or, more generally, in the context of an application where the patient is in a supine position or for an application during sleep.
Brève description des figures Brief description of the figures
[0012] La figure 1 représente une forme d'exécution d'appareil électronique autonome pour fixation frontale au niveau de la tête, selon la présente invention.  [0012] Figure 1 shows an embodiment of autonomous electronic device for front fixing at the head, according to the present invention.
[0013] La figure 2 représente une forme d'exécution d'électrode convenant pour la fixation de l'appareil électronique selon la figure 1. Description détaillée de l' invention FIG. 2 represents an embodiment of an electrode suitable for fixing the electronic device according to FIG. 1. Detailed description of the invention
[0014] L'objet de l'invention est un ensemble constitué d'un dispositif électronique autonome, c'est-à-dire dépourvu de fils ou câbles et alimenté grâce à une batterie rechargeable, et d'une électrode lui permettant de se fixer sur une partie du corps, de préférence la tête, de préférence encore le front, de manière soit à stimuler les muscles et/ou les nerfs, soit à enregistrer l'activité bioélectrique du patient.  The object of the invention is an assembly consisting of an autonomous electronic device, that is to say without wires or cables and powered by a rechargeable battery, and an electrode allowing it to attaching to a body part, preferably the head, preferably the forehead, so as to stimulate the muscles and / or nerves, or to record the bioelectrical activity of the patient.
[0015] Les principales caractéristiques de cette invention sont : The main features of this invention are:
- l'utilisation d'une électrode, à gel autocollant conducteur sur sa face destinée à venir en contact avec la peau, qui maintient le système sur le front avec un contact électrique ;  the use of a self-adhesive electrode electrode on its face intended to come into contact with the skin, which maintains the system on the front with an electrical contact;
- l'utilisation d'aimants qui permettent :  - the use of magnets that allow:
o de maintenir l'appareil sur l'électrode, en contact avec celle-ci ;  o keep the device on the electrode, in contact with it;
o de positionner facilement et rapidement l'appareil sur l'électrode, même dans le noir ; o de transmettre les courants électriques entre l'appareil et l'électrode, pour autant que les aimants utilisés soient suffisamment conducteurs électriquement .  o to easily and quickly position the device on the electrode, even in the dark; o to transmit the electric currents between the device and the electrode, provided that the magnets used are sufficiently electrically conductive.
Électrode Electrode
[0016] L'électrode selon l'invention est une électrode bipolaire aux dimensions choisies pour être confortable à l'utilisation et pour stimuler les afférences supraorbitaire et supratrochléaire de la branche supérieure du nerf trijumeau (pour une modalité d'exécution de forme et de dimensions préférées, voir US 2009/0210028). Elle comporte, sur sa face interne, une couche de gel autocollant permettant une adhérence autonome sur la peau du crâne et, sur sa face externe, une partie métallique magnétisable (par exemple en fer doux) . The electrode according to the invention is a bipolar electrode with dimensions chosen to be comfortable to use and to stimulate the supraorbital and supratrochlear afferents of the upper branch of the trigeminal nerve (for a form of execution modality and preferred dimensions, see US 2009/0210028). It has, on its inner side, a layer of self-adhesive gel allowing an autonomous adhesion on the skin of the skull and, on its external face, a magnetizable metal part (for example of soft iron).
Appareil électronique Electronic device
[0017] L'appareil selon l'invention est muni d'au moins deux aimants permanents puissants, de préférence deux aimants, qui permettent : The apparatus according to the invention is provided with at least two powerful permanent magnets, preferably two magnets, which allow:
- de faire tenir l'appareil sur l'électrode, qui elle- même adhère au front. De cette manière, le système électrode-appareil est maintenu en permanence et permet une utilisation par le patient en position couchée ;  - to hold the device on the electrode, which itself adheres to the front. In this way, the electrode-apparatus system is maintained permanently and allows use by the patient in supine position;
- de positionner facilement l'appareil : les aimants sont attirés par les parties magnétisables sur l'électrode et de ce fait se positionnent spontanément aux endroits adéquats. Ceci permet de repositionner l'appareil sans avoir besoin de lumière (par exemple pendant la nuit) , ni de miroir ;  - to easily position the device: the magnets are attracted by the magnetizable parts on the electrode and thus position themselves spontaneously in the appropriate places. This allows to reposition the device without the need for light (for example during the night), or mirror;
- de conduire les courants électriques, soit de l' appareil vers le corps dans le cas de la neurostimulation, soit du corps vers l'appareil dans le cas du biofeedback ;  - to conduct electrical currents, either from the device to the body in the case of neurostimulation, or from the body to the device in the case of biofeedback;
- d'éviter d'endommager l'électrode tant lors du positionnement que du retrait de l'appareil : la connexion par aimantation évite les efforts mécaniques sur des parties potentiellement fragiles d'une électrode ;  - To avoid damaging the electrode both during positioning and removal of the device: the magnetization connection avoids the mechanical forces on potentially fragile parts of an electrode;
- de ne pas avoir de jeu dans la connectique : une fois positionnés, les aimants restent immobiles, contrairement à une connexion de type mécanique qui peut bouger lors d'un mouvement de tête par exemple ou qui peut générer des jeux par l'usage répété.  - Not to have a game in the connectors: once positioned, the magnets remain motionless, unlike a mechanical type connection that can move during a head movement for example or that can generate games by repeated use .
[0018] L'appareil est conçu dans des matériaux choisis de manière à être rendu très léger, ce qui évite d'exercer un effort trop important sur l'électrode et empêche celle- ci de se décoller. The apparatus is designed in materials chosen to be made very light, which avoids exercising too much stress on the electrode and prevents it from peeling off.
[0019] La connectique par aimant pourrait également permettre une connexion facilitée dans l'utilisation d'un bandeau de stimulation occipitale.  The connector magnet could also allow a facilitated connection in the use of an occipital stimulation headband.
Description d'une forme d'exécution préférée de l'invention Description of a preferred embodiment of the invention
[0020] Selon une forme d'exécution préférée de l'invention, l'appareil 2 a une forme générale aplatie en losange, comme représenté sur la figure 1. Les deux aimants 4 sont avantageusement de type Néodyme NdFeB fritté (néodyme-fer-bore) . Ils peuvent être éventuellement recouverts ou enrobés d'une couche métallique, par exemple de nickel, cuivre, zinc, chrome, or, argent, etc., ou partiellement de résine époxy, de manière à assurer une protection contre la corrosion ou améliorer le passage du courant électrique. Ils possèdent une force d'adhérence de l'ordre de 250 g et un produit énergétique maximum (BHmax) de l'ordre de 48 MGOe . Les aimants 4 sont cylindriques. According to a preferred embodiment of the invention, the apparatus 2 has a generally diamond-shaped flat shape, as shown in FIG. 1. The two magnets 4 are advantageously of the Neodymium NdFeB sintered type (neodymium-iron). boron). They can be optionally coated or coated with a metal layer, for example nickel, copper, zinc, chromium, gold, silver, etc., or partially epoxy resin, so as to provide protection against corrosion or improve the passage electric current. They have a bond strength of the order of 250 g and a maximum energy product (BH max ) of the order of 48 MGOe. The magnets 4 are cylindrical.
[0021] L'électrode 1 est une électrode bipolaire à gel autocollant et possède sur sa face extérieure, comme représenté sur la figure 2, deux zones aimantables circulaires 3, dont les centres possèdent le même écartement (ou entraxe) que les centres respectifs des deux aimants 4 sur l'appareil 2. The electrode 1 is a bipolar gel self-adhesive electrode and has on its outer face, as shown in Figure 2, two circular magnetizable zones 3, whose centers have the same spacing (or center distance) as the respective centers of two magnets 4 on the device 2.
Symboles de référence Reference symbols
1. électrode  1. electrode
2. appareil électronique  2. electronic device
3. zone aimantable  3. magnetizable area
4. aimant permanent.  4. permanent magnet.

Claims

REVENDICATIONS
1. Appareil autonome destiné à être fixé sur une partie du corps, comprenant une électrode bipolaire (1) à support plat munie sur une face d'un gel autocollant conducteur pour l'adhésion à la peau, un dispositif électronique léger (2) capable de générer ou de recevoir des courants électriques respectivement vers ou à partir du corps, via l'électrode (1), des moyens de fixation mécanique de l'appareil électronique (2) à l'électrode (1) et des moyens permettant le passage du courant électrique de l'appareil électronique (2) à l'électrode (1) et vice versa, caractérisé en ce que lesdits moyens de fixation comprennent deux aimants permanents (4) localisés sur l'appareil électronique (2), électriquement conducteurs et aptes chacun à coopérer avec une zone métallique aimantable (3) localisée sur la face de l'électrode (1) opposée à la face destinée à être en contact avec la peau.  A self-contained apparatus for attachment to a body part, comprising a bipolar electrode (1) with a flat support provided on one side with a conductive adhesive gel for adhesion to the skin, a light electronic device (2) capable of generating or receiving electrical currents respectively to or from the body, via the electrode (1), means for mechanically fixing the electronic device (2) to the electrode (1) and means for the passage from the electrical current of the electronic device (2) to the electrode (1) and vice versa, characterized in that said fixing means comprise two permanent magnets (4) located on the electronic device (2), electrically conductive and each adapted to cooperate with a magnetizable metal zone (3) located on the face of the electrode (1) opposite the face intended to be in contact with the skin.
2. Appareil selon la revendication 1, caractérisé en ce que la zone métallique aimantable (3) est constituée d'une surface ferromagnétique.  2. Apparatus according to claim 1, characterized in that the magnetizable metal zone (3) consists of a ferromagnetic surface.
3. Appareil selon la revendication 1, caractérisé en ce que la surface ferromagnétique contient du fer, du cobalt, du nickel et/ou un de leurs alliages.  3. Apparatus according to claim 1, characterized in that the ferromagnetic surface contains iron, cobalt, nickel and / or one of their alloys.
4. Appareil selon la revendication 1, caractérisé en ce que les deux aimants permanents (4) sont conducteurs électriquement ou enrobés d'un conducteur électrique qui permet le passage du courant entre l'appareil (2) et l'électrode (1).  4. Apparatus according to claim 1, characterized in that the two permanent magnets (4) are electrically conductive or coated with an electrical conductor which allows the passage of current between the apparatus (2) and the electrode (1).
5. Appareil selon la revendication 1, caractérisé en ce que chaque aimant permanent est un aimant en alliage de terres rares.  5. Apparatus according to claim 1, characterized in that each permanent magnet is a rare earth alloy magnet.
6. Appareil selon la revendication 4, caractérisé en ce que l'aimant en alliage de terres rares est un aimant néodyme-fer-bore . 6. Apparatus according to claim 4, characterized in that the rare earth alloy magnet is a neodymium iron boron magnet.
7. Appareil selon la re endication 4, caractérisé en ce que l'aimant en alliage de terres rares est un aimant samarium-cobalt . 7. Apparatus according to claim 4, characterized in that the rare earth alloy magnet is a samarium-cobalt magnet.
8. Appareil selon la revendication 4 , caractérisé en ce que l'aimant en alliage de terres rares est enrobé d'une couche de nickel, cuivre, zinc, chrome, or, argent ou résine époxy.  8. Apparatus according to claim 4, characterized in that the rare earth alloy magnet is coated with a layer of nickel, copper, zinc, chromium, gold, silver or epoxy resin.
9. Appareil selon la revendication 4, caractérisé en ce que l'aimant en alliage de terres rares a un produit énergétique maximum BHmax compris entre 30 et 52 MGOe . 9. Apparatus according to claim 4, characterized in that the rare earth alloy magnet has a maximum energy product BH max between 30 and 52 MGOe.
10. Ap pareil selon la revendication 1, caractérisé en ce que chaque aimant permanent est cylindrique d' axe perpendiculaire à la surface de l' appareil (2 ) destinée à entrer en contact avec 1 ' électrode ( 1 ) .  10. Apparatus according to claim 1, characterized in that each permanent magnet is cylindrical axis perpendicular to the surface of the apparatus (2) intended to come into contact with the electrode (1).
11. Ap pareil selon la revendication 1, caractérisé en ce que l'appareil électronique (2) a un boîtier plat et de forme approximative en losange.  11. Apparatus according to claim 1, characterized in that the electronic apparatus (2) has a flat and roughly diamond shaped housing.
12. Appareil selon la revendication 1, caractérisé en ce que l'électrode (1) comporte deux zones aimantables circulaires (3) dont les centres respectifs possèdent le même écartement que les centres respectifs des deux aimants (4) localisés sur l'appareil électronique (2) , sur sa face destinée à contacter l'électrode.  12. Apparatus according to claim 1, characterized in that the electrode (1) comprises two circular magnetizable zones (3) whose respective centers have the same spacing as the respective centers of the two magnets (4) located on the electronic device (2) on its face intended to contact the electrode.
13. Utilisation de l' appareil selon l'une quelconque des revendications 1 à 12, pour la stimulation des afférences supraorbi taire et supratrochléaire de la branche supérieure du nerf trijumeau.  13. Use of the apparatus according to any one of claims 1 to 12 for the stimulation of supraorbital and supratrochlear afferions of the upper limb of the trigeminal nerve.
14. Utilisation de l' appareil selon l'une quelconque des revendicatio n s 1 à 1 2, pour un enregistrement d'activité bioélectrique dans une application de biofeedback. 14. Use of the apparatus according to any one of claims 1 to 12 for recording a bioelectric activity in a biofeedback application.
15. Utilisation de l'appareil selon l'une quelconque des revendications 1 à 12, dans le cadre d'une application où le patient est en position couchée ou pour une application durant le sommeil. 15. Use of the apparatus according to any one of claims 1 to 12, in the context of an application where the patient is in a supine position or for an application during sleep.
EP13701576.4A 2012-01-13 2013-01-03 Stand-alone electronic apparatus and device for fastening the latter to an electrode located on the head of a patient for use when the patient is lying down Withdrawn EP2833787A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2012/0025A BE1020458A3 (en) 2012-01-13 2012-01-13 AUTONOMOUS ELECTRONIC APPARATUS AND DIPOSITIVE FIXING THE SAME ON A LOCALIZED ELECTRODE AT THE HEAD FOR USE IN THE LAYERED POSITION OF THE PATIENT.
PCT/EP2013/050047 WO2013104552A1 (en) 2012-01-13 2013-01-03 Stand-alone electronic apparatus and device for fastening the latter to an electrode located on the head of a patient for use when the patient is lying down

Publications (1)

Publication Number Publication Date
EP2833787A1 true EP2833787A1 (en) 2015-02-11

Family

ID=47624021

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13701576.4A Withdrawn EP2833787A1 (en) 2012-01-13 2013-01-03 Stand-alone electronic apparatus and device for fastening the latter to an electrode located on the head of a patient for use when the patient is lying down

Country Status (4)

Country Link
US (1) US20140324146A1 (en)
EP (1) EP2833787A1 (en)
BE (1) BE1020458A3 (en)
WO (1) WO2013104552A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2776697A1 (en) 2009-10-05 2011-04-14 The Regents Of The University Of California Extracranial implantable devices, systems and methods for the treatment of neuropsychiatric disorders
EP2646109B1 (en) 2010-11-30 2019-04-10 The Regents of The University of California Pulse generator for cranial nerve stimulation
US20140135886A1 (en) 2010-12-14 2014-05-15 United States Government Department Of Veterans Affairs Devices, systems and methods for the treatment of medical disorders
US20140142669A1 (en) 2010-12-14 2014-05-22 The Regents Of The University Of California Extracranial implantable devices, systems and methods for the treatment of medical disorders
EP3277369B1 (en) * 2015-03-30 2019-12-25 CEFALY Technology Sprl Device for the transcutaneous electrical stimulation of the trigeminal nerve
DE202018001803U1 (en) * 2017-05-19 2018-06-27 Cefaly Technology Sprl External trigeminal nerve stimulation for the acute treatment of migraine attacks
WO2019108968A1 (en) * 2017-12-01 2019-06-06 Zeto, Inc. Headset and electrodes for sensing bioelectrical potential and methods of operation thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4112941A (en) * 1977-01-06 1978-09-12 Minnesota Mining And Manufacturing Company Electrode and magnetic connector assembly
EP1671670A1 (en) 2004-12-14 2006-06-21 STX Sprl Apparatus for electrically inhibiting facial muscles
DE102007021960A1 (en) * 2007-05-10 2008-11-20 E/L/T Energy-Lab Technologies Gmbh Electrode for detecting electrical signals on body surface, has body opposite carrier layer and electrically conductive adhesive layer arranged on body opposite carrier layer
EP2092951A1 (en) * 2008-02-20 2009-08-26 Stx-Med Sprl Device for electrotherapeutical treatment of tension headaches
US8702584B2 (en) 2010-05-12 2014-04-22 Cefaly Technology Sprl Neurostimulation method to induce relaxation or sleep
US9050451B2 (en) * 2010-06-03 2015-06-09 Koninklijke Philips N.V. Electrode assembly with magnetic connection

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013104552A1 *

Also Published As

Publication number Publication date
US20140324146A1 (en) 2014-10-30
WO2013104552A1 (en) 2013-07-18
BE1020458A3 (en) 2013-10-01

Similar Documents

Publication Publication Date Title
BE1020458A3 (en) AUTONOMOUS ELECTRONIC APPARATUS AND DIPOSITIVE FIXING THE SAME ON A LOCALIZED ELECTRODE AT THE HEAD FOR USE IN THE LAYERED POSITION OF THE PATIENT.
US9391394B2 (en) Magnetic connector assembly
US8811643B2 (en) Integrated cochlear implant headpiece
EP1522208A1 (en) Partly implanted hearing aid
JP2017515394A (en) Transcutaneous vibration conductor
CN103731785A (en) Abutment attachment systems, mechanisms, devices, components and methods for bone conduction hearing aids
EP0402251A1 (en) Transcutaneous connection device
JP2005528169A (en) Implantable device with flexible interconnect to coil
JP2005528169A5 (en)
JP3229284U (en) Pins and brushes for skin irritation brushes
MY159767A (en) Cranial electrostimulation electrode unit
US20160310734A1 (en) Handheld electrical stimulation medical device
JP6398022B1 (en) Weak current appliance
JP3179639U (en) Adhesive treatment device and adhesive treatment device unit
US9980066B2 (en) Bone conduction transducer system with adjustable retention force
FR2646779A1 (en) Device for transcutaneous neurostimulation for the treatment of pain
FR2798843A1 (en) DEVICE WITH ELECTROGALVANIC FIELDS FOR THE TREATMENT OF PARTS OF LIVING ORGANISMS AND / OR FOR NEUTRALIZATION OF THE DETERMINED EFFECTS OF APPLIANCES USING ELECTRIC ENERGY
US20080159574A1 (en) Ring Transducers for Sonic, Ultrasonic Hearing
FR2585579A1 (en) Electromagnetic cushion for treating skin disorders
KR101915697B1 (en) Patch-type eletrical stimulation apparatus capable of delivering drug and controlling method thereof
WO2000003760A1 (en) Excito-motor garment
EP2535080A1 (en) Combined electrode for the treatment of axillary hyperhidrosis
KR200496628Y1 (en) Healthy earings
WO2001030446A1 (en) Pain-relieving magnetic exposure bracelet
JP6554598B1 (en) Weak current equipment

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20141201

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20150714