CN215348992U

CN215348992U - Claw type dry electrode structure and electroencephalogram cap

Info

Publication number: CN215348992U
Application number: CN202121873292.1U
Authority: CN
Inventors: 裴为华; 查爱华; 章祥; 陈茹茹
Original assignee: Jiangsu Jicui Brain Machine Integration Intelligent Technology Research Institute Co Ltd
Current assignee: Suzhou Yiyiji Technology Co.,Ltd.
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2021-12-31
Anticipated expiration: 2031-08-11

Abstract

The utility model discloses a claw-type dry electrode structure and an electroencephalogram cap. The mounting portion has a first mounting surface and a second mounting surface which are oppositely arranged. The electrodes are arranged on the first mounting surface, each electrode has a certain length, and each electrode has a spherical contact end. The handle is configured on the second mounting surface, and a standard interface is arranged on the handle. The claw type dry electrode structure can effectively reduce the resistance of hair passing through the unique shape structure, easily contacts the scalp, well avoids pressing the hair and prevents the problem of poor contact caused by pressing the hair.

Description

Claw type dry electrode structure and electroencephalogram cap

Technical Field

The utility model relates to the technical field of electroencephalogram signal acquisition devices, in particular to a claw-type dry electrode structure and an electroencephalogram cap.

Background

At present, electrodes for collecting electroencephalogram signals are mainly divided into a wet electrode and a dry electrode, the operation of the wet electrode is complex in the using process, an operator is required to have a higher professional level, a conductive medium is adhered to hair in the using process, and the hair needs to be washed after the use. The dry electrode is relatively simple in use process, easy to operate, free of residue after use and free of cleaning. Therefore, the dry electrode is adopted to collect the electroencephalogram signals at present and becomes the choice of more users or equipment manufacturers, and the dry electrode also occupies the main market. Although there are many types of dry electrodes on the market, more or less certain problems exist.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a claw type dry electrode structure which can effectively reduce the resistance of hair passing through a unique shape structure, easily contact the scalp, well avoid pressing the hair and prevent the problem of poor contact caused by pressing the hair.

In order to achieve the purpose, the utility model provides a claw type dry electrode structure which comprises a mounting part, an electrode and a handle.

The mounting portion has a first mounting surface and a second mounting surface which are oppositely arranged.

The electrodes are arranged on the first mounting surface, each electrode has a certain length, and each electrode has a spherical contact end.

The handle is configured on the second mounting surface, and a standard interface is arranged on the handle.

In one or more embodiments, the electrode is configured in a truncated cone-shaped structure, and a radial cross-sectional area of the electrode gradually decreases in a direction away from the first mounting surface.

In one or more embodiments, the spherical contact end is disposed at an end of the electrode away from the first mounting surface.

In one or more embodiments, the axial length of the electrode is 2.5 to 3.5 mm.

In one or more embodiments, the mounting portion, the electrode, and the handle are integrally formed.

In one or more embodiments, the mounting portion, the electrode, and the handle surface are coated with an organic conductive polymer coating.

In one or more embodiments, the plurality of electrodes are arranged in a ring shape, and a ring-shaped electrode group is distributed on the first mounting surface.

In one or more embodiments, the plurality of groups of ring electrode sets are concentrically distributed on the first mounting surface, and the electrodes between two adjacent groups of ring electrode sets are distributed in a staggered manner.

In one or more embodiments, the mounting portion is configured in a circular configuration and the handle is configured in a cylindrical or spherical configuration.

The utility model also provides an electroencephalogram cap which comprises an annular fixing device and the claw-type dry electrode structure, wherein an interface structure matched with a standard interface of the claw-type dry electrode structure is configured on the annular fixing device.

In one or more embodiments, the loop-shaped fixture may include a cap, a headband, and a headband.

Compared with the prior art, the claw type dry electrode structure has a unique shape structure, so that the resistance of penetrating through hair can be effectively reduced, and the claw type dry electrode structure can easily penetrate through the hair to contact the scalp; the hair can be well prevented from being pressed through the design of the spherical contact end, and the problem of poor contact caused by the hair pressing head is prevented; through the standard interface on the handle, can adapt to any style of connector that possesses the standard interface on the market, need not to carry out secondary operation.

Drawings

Fig. 1 is a perspective view of a claw-type dry electrode structure according to an embodiment of the present invention.

Fig. 2 is a side view of a claw dry electrode structure according to an embodiment of the present invention.

Fig. 3 is another perspective view of the claw-type dry electrode structure according to an embodiment of the present invention.

Fig. 4 is a bottom view of a claw dry electrode structure in accordance with an embodiment of the present invention.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

Although there are many kinds of dry electrodes in the market, there are some problems in many cases. For example, the shape of a part of dry electrode is inconvenient to assemble and use, and the dry electrode can be arranged on an electroencephalogram cap only after being reprocessed; part of dry electrodes, the electrode length, the inter-electrode distance and the electrode size of which are not reasonable, are not easy to contact the scalp of a long hair quilt type person well in use, and can not acquire good brain electrical signals sometimes; the coating of a part of the dry electrode is easy to fall off and oxidize, the storage is difficult, and the service life is short.

As shown in fig. 1 to 3, an embodiment of the present invention provides a claw-type dry electrode structure including a mounting portion 10, an electrode 20, and a handle 30. The electrodes 20 and the handle 30 are respectively provided on both surfaces of the mounting portion 10.

The mounting portion 10 may be configured in a circular configuration having first and

second mounting surfaces

11 and 12 disposed opposite to each other. The first mounting surface 11 is a flat plane, and the second mounting surface 12 can be a spherical surface structure with a certain radian, so that the claw type dry electrode structure has more attractive appearance.

As shown in fig. 4, the plurality of electrodes 20 are disposed on the first mounting surface 11. The plurality of electrodes 20 are annularly arranged to form an annular electrode group (A, B) distributed on the first mounting surface 11. The plurality of annular electrode groups (A, B) are concentrically distributed on the first mounting surface 11, and the electrodes 20 between two adjacent annular electrode groups (A, B) are distributed in a staggered manner. In the present embodiment, the annular electrode group B is located outside the annular electrode group a, and two adjacent electrodes 20 in the annular electrode group a and the electrodes close to the two electrodes 20 in the annular electrode group B are distributed in a triangular shape (each electrode 20 can find the other two electrodes 20 which form an isosceles triangular distribution with it).

As shown in fig. 1 to 3, the electrode 20 is configured in a truncated cone-shaped configuration and its radial sectional area is gradually reduced in a direction away from the first mounting surface 11. The electrode 20 has a length and an axial length of about 2.5 to 3.5 mm. This length allows easy passage through the root zone of most individuals' hair, contacting the scalp. The electrode 20 has a contact end 21 in the shape of a half sphere. The hemispherical contact end 21 is disposed at an end of the electrode 20 away from the first mounting surface 11. The radius of the semi-spherical contact end 21 is about 0.5mm or less. Because the normal person has about 1.5-2 hairs per millimeter, the semi-spherical radius of the electrode semi-spherical contact end is limited within 0.5mm, and the contact end can be ensured to avoid the hair roots and contact the scalp, so that good brain electrical signals can be obtained. The semi-spherical contact end 21 reduces resistance to hair penetration and prevents hair compression to prevent poor contact.

A handle 30 is disposed on the second mounting surface 12, the handle 30 being configured in a cylindrical or spherical configuration, the handle 30 having a standard interface disposed thereon. The standard interface may be, for example, the universal USB standard interfaces of 4.0 and 2.0. The standard interface shape is directly manufactured on the handle 30, and the connecting plating layer is prepared, so that the connecting device can be directly assembled on a connector on the market without secondary processing.

In one embodiment, the mounting portion 10, the electrode 20, and the handle 30 are integrally formed.

In one embodiment, the surfaces of the mounting portion 10, the electrode 20, and the handle 30 are coated with an organic conductive polymer coating. The organic conducting polymer coating layer coated on the surface of the claw-type dry electrode structure in the embodiment can optimize the manufacturing process and the material of the organic conducting polymer coating layer. The polymer substrate of the coating layer adopts a proper surface treatment mode, so that the organic conductive polymer coating layer has the functions of anti-falling and anti-oxidation, and the problems that similar electrode coatings in the market are easy to fall and oxidize can be effectively solved. Since the organic conductive polymer coating layer is not a main improvement point of the present invention, the present specification will not be described in detail.

Another embodiment of the present invention provides an electroencephalogram cap, which includes an annular fixing device and the above-mentioned claw-type dry electrode structure, wherein the annular fixing device is provided with an interface structure adapted to a standard interface of the claw-type dry electrode structure. The ring-shaped fixing device may include a cap, a head ring, a headband, and the like which are wearable.

When the claw-type dry electrode structure is used, a handle can be directly connected to a female buckle with a standard 4.0 or 2.0 interface, the female buckle is fixed on fixing devices such as an electroencephalogram cap, an electroencephalogram head ring and a head band, the fixing devices such as the electroencephalogram cap, the head ring and the head band are worn on the head of a subject, the claw-type dry electrode structure is slightly adjusted, and an electrode contact end is enabled to be in better contact with the scalp, so that normal signal collection can be carried out.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the utility model and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the utility model and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.

Claims

1. A claw-type dry electrode structure, comprising:

the mounting part is provided with a first mounting surface and a second mounting surface which are oppositely arranged;

the electrodes are arranged on the first mounting surface, each electrode has a certain length, and each electrode has a spherical contact end; and

and the handle is configured on the second mounting surface, and a standard interface is arranged on the handle.

2. The claw-type dry electrode structure of claim 1, wherein the electrode is configured as a truncated cone-shaped structure, and wherein a radial cross-sectional area of the electrode decreases in a direction away from the first mounting surface.

3. The claw-type dry electrode structure of claim 1, wherein the spherical contact end is disposed at an end of the electrode remote from the first mounting surface.

4. The claw-type dry electrode structure according to claim 1, wherein the axial length of the electrode is 2.5 to 3.5 mm.

5. The claw dry electrode structure of claim 1, wherein the mounting portion, the electrode, and the handle are integrally formed.

6. The claw dry electrode structure of claim 1 wherein the mounting portion, the electrode, and the handle surface are coated with an organic conductive polymer coating.

7. A claw-type dry electrode structure as claimed in claim 1 wherein a plurality of said electrodes are arranged in a ring to form a ring electrode assembly disposed on said first mounting surface.

8. The claw-type dry electrode structure of claim 7, wherein a plurality of sets of the ring electrode sets are concentrically arranged on the first mounting surface, and electrodes between two adjacent sets of the ring electrode sets are alternately arranged.

9. The claw dry electrode structure of claim 1, wherein the mounting portion is configured in a circular configuration and the handle is configured in a cylindrical or spherical configuration.

10. An electroencephalogram cap, which is characterized by comprising an annular fixing device and the claw-type dry electrode structure of any one of claims 1 to 9, wherein the annular fixing device is provided with an interface structure matched with a standard interface of the claw-type dry electrode structure.