CN213787441U

CN213787441U - Double-layer electroencephalogram dry electrode head with adjusting and pressing functions separated

Info

Publication number: CN213787441U
Application number: CN202022235479.0U
Authority: CN
Inventors: 裴为华; 查爱华; 吴晓婷; 章祥
Original assignee: Jiangsu Jicui Brain Machine Integration Intelligent Technology Research Institute Co Ltd
Current assignee: Jiangsu Jicui Brain Machine Integration Intelligent Technology Research Institute Co Ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-07-27
Anticipated expiration: 2030-10-10

Abstract

The utility model discloses an adjustment is worn with pressing function divided double-deck brain electricity dry electrode, including brain electricity dry electrode, inlayer bandeau, outer bandeau, signal amplifier, wire, the inboard of inlayer bandeau is equipped with a plurality of brain electricity dry electrode, brain electricity dry electrode is any one kind electrode of Ag AgCL sintering dry electrode, pure silver dry electrode or compound dry electrode, the outside of inlayer bandeau is equipped with the outer bandeau of removable connection, and this kind of adjustment is worn with pressing function divided double-deck brain electricity dry electrode, and double-deck bandeau inlayer elastic deformation scope is big, and the elasticity margin is big, conveniently wears the position of person's adjustment electrode, orientation and gets rid of the interference of hair when laying in advance, and the adjustment time of the needs of laying the electrode is few. The outer headband is primarily used to apply pressure vertically to the electrodes, thus enabling lower average contact resistance. The double-layer matched structure is convenient to adjust, has low average impedance, and can better meet the application requirement of rapidly placing the dry electrode.

Description

Double-layer electroencephalogram dry electrode head with adjusting and pressing functions separated

Technical Field

The utility model relates to a data acquisition technical field especially relates to an adjustment is worn with pressing the detached double-deck brain electricity dry electrode of function.

Background

The existing in vitro used electrophysiological electrodes are divided into two modes of adsorption bonding type fixation and pressing type fixation according to the fixation mode on the skin. In the pressing type fixing mode, the contact quality of the electrode and the scalp is directly related to the strength and the direction of the force for pressing the electrode on the head; the stability of the contact of the electrodes with the scalp is closely related to the device and structure providing the pressure and the way the electrodes are placed and fixed on the head. The electroencephalogram head band is a middle electrode fixing device for extracting electroencephalogram signals in a local range (relative to the whole head), and belongs to press type fixing. The traditional brain wave headband generally adopts an elastic fabric material, and electrodes (including leads) and a rear-end acquisition system such as an amplifier and the like are fixed on the elastic fabric material. When the electrode headband is worn, the electrode is pressed on the head mainly by the fastening of the headband through elastic force, the longitudinal pressure of the electrode on the head is realized by adjusting the tightness of the headband, particularly the length of the partial headband on two sides of the electrode, and the headband has two defects in fixing the electrode: 1, the position of an electrode is changed while the pressure of the positive electrode is adjusted, so that the electroencephalogram recording position changes along with time; the electrodes tend to interfere with each other over time during the adjustment process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an adjustment is worn with the detached double-deck brain electricity dry electrode of pressing function to solve the problem of proposing among the above-mentioned background art.

The utility model aims at realizing through the following technical scheme:

a double-layer brain electric dry electrode head with an adjusting function and a pressing function separated comprises brain electric dry electrodes, an inner layer head band, an outer layer head band, a signal amplifier and a lead, wherein a plurality of brain electric dry electrodes are arranged on the inner side of the inner layer head band, the brain electric dry electrodes are any one of Ag/AgCL sintered dry electrodes, pure silver dry electrodes or composite dry electrodes, the outer layer head band capable of being connected in a detachable mode is arranged on the outer side of the inner layer head band, each brain electric dry electrode penetrates through the outer layer head band through the lead to be electrically connected with the signal amplifier, and the signal amplifier is fixedly installed on the outer layer head band.

The utility model discloses in, the brain electricity dry electrode distributes on the inlayer bandeau according to the corresponding position that the people brain surveyed, and the brain electricity dry electrode utilizes standard electrode snap-fastener buckle on the inlayer bandeau, but makes brain electricity dry electrode and inlayer bandeau realize the split installation, and the shape of brain electricity dry electrode is circular, square or oval.

The utility model discloses in, compound dry electrode is for using macromolecular material as the substrate to form the electrode on Ag AgCL layer or Ag layer on its at least partial surface, macromolecular material is PP, PE, ABS or rubber materials.

The utility model discloses in, the combined material that inlayer bandeau and outer bandeau all adopted elastic material to make or elastic material and macromolecular material to constitute makes, and this elastic material is elastic cloth material, silica gel or rubber materials, macromolecular material is PP, PE, ABS or rubber materials.

The utility model discloses in, signal amplifier is connected with external equipment, and signal amplifier receives and handles the EEG signal that each EEG dry electrode gathered and transmits to external equipment.

Compared with the prior art, the utility model has the advantages that the utility model is a double-layer brain electricity dry electrode head with the adjustment and pressing functions separated, adopts the inner layer elastic base material, has soft material, moderate elasticity and larger elastic deformation capability, can adapt to the head circumference of most adults, is mainly used for fixing the dry electrode, and pre-arranges the electrode on the scalp; the outer headband is made of elastic fabric with low stretching rate or other materials with strong elasticity, and is provided with an adjusting device capable of adjusting the inner diameter of the head ring according to the size of the head circumference, when the adjusting device is overlapped with the inner ring electrode, the pressing and contact force of the electrode on the head can be enhanced, and the low-impedance contact between the dry electrodes on the inner layer and the scalp can be ensured to the maximum extent. Compared with a single-layer headband, the double-layer headband is large in elastic deformation range of the inner layer and large in tightness margin, a wearer can conveniently adjust the position and the orientation of the electrode and remove the interference of hair when the headband is placed in advance, and the adjustment time needed for placing the electrode is short. The outer headband is primarily used to apply pressure vertically to the electrodes, thus enabling lower average contact resistance. The double-layer matched structure is convenient to adjust, low in average impedance and capable of better meeting the application requirement of rapidly placing the dry electrode.

Drawings

FIG. 1 is an overall effect diagram of the utility model of a double-layer brain dry electrode head with separate adjustment and pressing functions;

in the figure: 1. brain electricity dry electrode, 2, inner layer bandeau, 3, outer layer bandeau, 4, signal amplifier, 5, wire.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

As shown in fig. 1, the utility model discloses an adjustment is worn with pressing the detached double-deck brain electricity dry electrode of function, including brain electricity dry electrode 1, inlayer bandeau 2, outer bandeau 3, signal amplifier 4, wire 5, the inboard of inlayer bandeau 2 is equipped with a plurality of brain electricity dry electrode 1, brain electricity dry electrode 1 is Ag AgCL sintering dry electrode, pure silver dry electrode or the arbitrary electrode of compound dry electrode, the outside of inlayer bandeau 2 is equipped with but outer bandeau 3 of split connection, each brain electricity dry electrode 1 passes outer bandeau 3 through wire 5 and is connected with signal amplifier 4 electricity, signal amplifier 4 fixed mounting is on outer bandeau 3.

The utility model discloses, brain electricity dry electrode 1 distributes on inlayer bandeau 2 according to the corresponding position that people's brain surveyed, and brain electricity dry electrode 1 utilizes standard electrode snap-fastener buckle on inlayer bandeau 2, makes but the split installation of brain electricity dry electrode 1 and inlayer bandeau 2 realization, and the shape of brain electricity dry electrode 1 is circular, square or oval.

The utility model discloses, compound dry electrode is for using macromolecular material as the substrate to form the electrode on Ag AgCL layer or Ag layer on its at least partial surface, macromolecular material is PP, PE, ABS or rubber materials.

The utility model discloses, inner layer bandeau 2 and outer bandeau 3 all adopt elastic material to make or the combined material that elastic material and macromolecular material constitute makes, and this elastic material is elastic cloth material, silica gel or rubber materials, macromolecular material is PP, PE, ABS or rubber materials.

The utility model discloses, signal amplifier 4 is connected with external equipment, and signal amplifier 4 receives and handles the EEG signal that each EEG dry electrode 1 gathered and transmits to external equipment.

The utility model discloses in, brain electricity dry electrode 1 here can be the electrode commonly used in this field, for example for Ag/AgCL sintering dry electrode or pure silver dry electrode or compound dry electrode, compound dry electrode is for taking macromolecular material (for example with PP, PE, ABS, rubber etc.) as the substrate to form the electrode on Ag/AgCL layer or Ag layer on its at least partial surface. The shape of the brain dry electrode 1 can be round or square or oval.

The inner layer head band 2 can be made of elastic cloth or silica gel and the like, the electroencephalogram dry electrode is fixed on the inner layer head band 2 in a proper mode, the fixing mode can be a detachable and reliable mode such as standard electrode snap fasteners, buckles and the like, and when the service life of the electrode is up, the old electrode can be detached and a new electrode can be installed for reuse. The outer headband 3 may be made of elastic cloth or silica gel, or partly elastic material or partly polymer forming material, and aims to enhance electrode fixation and shield noise to obtain better electroencephalogram. The inner layer head band 2 and the outer layer head band 3 are detachably connected, and are integrated when in use, and the inner layer can be separated and cleaned when not in use. The signal amplifier 4 is used for receiving and processing the electroencephalogram signals collected by the electrodes and transmitting the electroencephalogram signals to external equipment such as a computer, and the lead 5 is used for connecting the electrodes and the signal amplifier and transmitting the signals collected by the electrodes to the amplifier.

Wear inlayer bandeau 2 overhead earlier during the use, the adjustment bandeau lets the brain electric dry electrode contact the exact position that receives, and the outer bandeau 3 that links together with inlayer bandeau 2 is fixed again, adjusts suitable fastening state, and dry electrode 1 detects behind the brain electric signal, transmits signal amplifier 4 through wire 5, passes through the bluetooth after being handled by signal amplifier, outside receiving equipment behind the wireless mode transmission. When in use, the electroencephalogram dry electrode head can be simultaneously suitable for different head types due to the fact that the inner layer headband and the outer layer headband are relatively high in adaptability, and is convenient to wear, take and clean, and simple and attractive in whole.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an adjustment is worn with pressing double-deck brain electricity dry electrode that function is divided, includes brain electricity dry electrode (1), inlayer bandeau (2), outer bandeau (3), signal amplifier (4), wire (5), its characterized in that: the electroencephalogram dry electrode structure is characterized in that a plurality of electroencephalogram dry electrodes (1) are arranged on the inner side of the inner-layer head band (2), the electroencephalogram dry electrodes (1) are any one of Ag/AgCL sintered dry electrodes, pure silver dry electrodes or composite dry electrodes, an outer-layer head band (3) which can be connected in a detachable mode is arranged on the outer side of the inner-layer head band (2), each electroencephalogram dry electrode (1) penetrates through the outer-layer head band (3) through a lead (5) to be electrically connected with a signal amplifier (4), and the signal amplifier (4) is fixedly installed on the outer-layer head band (3).

2. The double-layer brain dry electrode headset for adjusting the separation of the pressing function from the wearing of the claim 1 is characterized in that: the electroencephalogram dry electrode (1) is distributed on the inner-layer head band (2) according to the corresponding position of the human brain to be tested, the electroencephalogram dry electrode (1) is buckled on the inner-layer head band (2) through a standard electrode snap fastener, the electroencephalogram dry electrode (1) and the inner-layer head band (2) can be detachably installed, and the electroencephalogram dry electrode (1) is circular, square or elliptical in shape.

3. The double-layer brain dry electrode headset for adjusting the separation of the pressing function from the wearing of the claim 1 is characterized in that: the composite dry electrode is an electrode which takes a high polymer material as a base material and forms an Ag/AgCL layer or an Ag layer on at least part of the surface of the base material, and the high polymer material is PP, PE, ABS or a rubber material.

4. The double-layer brain dry electrode headset for adjusting the separation of the pressing function from the wearing of the claim 1 is characterized in that: the inner-layer head strap (2) and the outer-layer head strap (3) are both made of elastic materials or composite materials formed by elastic materials and high polymer materials, the elastic materials are elastic cloth materials, silica gel or rubber materials, and the high polymer materials are PP, PE, ABS or rubber materials.

5. The double-layer brain dry electrode headset for adjusting the separation of the pressing function from the wearing of the claim 1 is characterized in that: the signal amplifier (4) is connected with external equipment, and the signal amplifier (4) receives and processes the electroencephalogram signals collected by the electroencephalogram dry electrodes (1) and transmits the electroencephalogram signals to the external equipment.