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Portable electroencephalography devices

A technology of EEG, portable equipment, applied in the direction of medical science, diagnosis, diagnostic recording/measurement, etc., which can solve the problem of lack of thorough consideration

Pending Publication Date: 2021-02-19
CENT NAT DE LA RECHERCHE SCI +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Even if the above-mentioned devices can save the technical support of the operator and provide a solution to ensure satisfactory contact with the user's scalp, they lack the necessary thorough consideration, especially for consumer applications (such as video games, training, sleep, etc.). auxiliary, etc.)

Method used

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  • Portable electroencephalography devices
  • Portable electroencephalography devices
  • Portable electroencephalography devices

Examples

Experimental program
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Embodiment Construction

[0059] Figure 1A to Figure 1D respectively represent a front view, a first side view, a rear view and a second side view of a first example of a portable device 10 for acquiring EEG signals according to the present specification, while Figure 1E A view of a device worn by a user is shown.

[0060] Such as Figure 1A to Figure 1D The illustrated portable device includes: a flexible support 11 intended to fit a localized area of ​​the user's skull (e.g., in the occipital region at the back of the skull); and a housing 12 mechanically and electronically ground coupled to the flexible support 11. On said support is arranged a set of sensors 13 for detecting electrical signals generated by the user's neuronal activity. An additional (so-called ground or "bias") electrode 13 is provided B to remove common mode from signals measured by other sensors. As will be described in more detail below, each sensor may include, for example, a plurality of conductive sheets (in this examp...

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PUM

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Abstract

In one aspect, the present disclosure relates to a portable device (10) for acquiring electroencephalographic (EEG) signals transmitted by a user. The portable device comprises a flexible support (11)intended to engage with a localised region of the user's skull and a set of sensors (13) of electrical signals generated by the neuronal activity of the user, said sensors (13) being arranged on thesupport (11) so as to form contacts with the scalp when the device is worn by the user. For each sensor, an electronic circuit for filtering and amplifying the electrical signals detected by the sensor is integrated into the flexible support (11) and forms, with the sensor, an active electrode. The portable device further comprises a housing (12) comprising an electronic chain for processing signals from the electronic filtering and amplifying circuits, the housing being mechanically connected to the flexible support to form, with the support, a means for attachment to a garment or accessory (101) to be worn by the user.

Description

technical field [0001] The present invention relates to portable devices or portable surface EEG machines for acquiring electroencephalogram (EEG) signals, and to methods of acquiring EEG signals using these EEG machines. Background technique [0002] Surface EEG measures diffuse electrical potential changes on the surface of the skull. These potential changes are often referred to as electroencephalogram signals or EEG signals. [0003] The first difficulty concerns the reliability of the equipment used to capture EEG signals. In fact, considering the very small magnitude of the potential change to be measured (of the order of a few microvolts), it is necessary to ensure maximum conductivity between the electrodes and the scalp to obtain a usable EEG signal, and therefore a perfect contact, which Might be difficult, especially because of the user's hair. [0004] Currently, several solutions are used in popular devices to deal with constraints on signal reliability. [...

Claims

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Application Information

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IPC IPC(8): A61B5/369A61B5/386A61B5/291A61B5/00
CPCA61B5/6803A61B5/291A61B5/256A61B5/6804A61B5/6838A61B5/268A61B5/372A61B5/7225A61B2562/164A61B5/254A61B5/31
Inventor S·库德尔张昊A·高皮莱J·维切里尔G·普勒阿特A·比安卡雷利G·杰维斯
Owner CENT NAT DE LA RECHERCHE SCI
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