CN113229820A

CN113229820A - Acquisition device of bioelectricity signal

Info

Publication number: CN113229820A
Application number: CN202110437332.6A
Authority: CN
Inventors: 吕扬阳; 戴志峰; 夏阳; 王聪; 王晓岸
Original assignee: Beijing Brain Up Technology Co ltd
Current assignee: Beijing Brain Up Technology Co ltd
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2021-08-10

Abstract

The application discloses a device for acquiring a bioelectric signal, which comprises a collector and a base, wherein the collector comprises a plurality of flexible electrode grippers and a conductive base; the signal transmission structure comprises a first supporting copper sheet and a second supporting copper sheet which are electrically connected with each other, the first supporting copper sheet is installed inside the conductive base and is respectively connected with the conductive base and the flexible electrode gripper, and the second supporting copper sheet is installed outside the conductive base. The flexible electrode tongs overcome the influence of hair to the noise of signal through flexible electrode tongs, can directly pass the collection that hair contacted the scalp and carried out the bio-electricity signal, not only need not to paint the conducting resin between electrode and skin, improved the convenience of brain electricity measurement, still shortened measurement preparation time, and need not the shampoo after measuring, can acquire brain electricity signal for a long time, measurement accuracy is high.

Description

Acquisition device of bioelectricity signal

Technical Field

The application relates to the technical field of bioelectricity signal acquisition, in particular to a bioelectricity signal acquisition device.

Background

Bioelectricity is the most basic physiological phenomenon of an organism, and various physiological diseases (such as cerebral thrombosis, myocardial infarction, arrhythmia, sudden cardiac arrest and other cardiovascular and cerebrovascular diseases) can be diagnosed and prevented by monitoring bioelectric signals. In addition, the bioelectric signal can be used for the research in the fields of brain-computer interfaces, rehabilitation medicine, sleep monitoring and the like. At present, bioelectricity detection electrodes are mainly used to contact with human bodies to collect various bioelectric potentials. The related bioelectricity detection electrode has the following problems: firstly, the wet electrode is usually used by matching with a conductive gel and an adhesive, the gel or the adhesive can stimulate the skin, the performance of the electrode can also be rapidly reduced along with the drying of the gel, and the electrode is difficult to be used for monitoring a bioelectricity signal for a long time; secondly, the motion artifact (namely noise generated when the skin and the electrode relatively displace) of the hard dry electrode is large, and a micro needle or a finger-shaped structure is generally needed to increase the contact area of the electrode and the skin so as to reduce the contact impedance, so that the skin is damaged to cause skin infection and other symptoms, and the discomfort of a user can be enhanced after the hard dry electrode is worn for a long time; and thirdly, the semi-dry electrode needs to be used in combination with a conductive liquid, and long-term monitoring cannot be carried out.

Disclosure of Invention

In order to solve at least one problem, the application provides a bioelectrical signal acquisition device to achieve the purpose of long-term detection of bioelectricity.

The application provides a collection system of bioelectric signal, the device includes:

the collector comprises a plurality of flexible electrode grippers and a conductive base, and the flexible electrode grippers are symmetrically arranged on two sides of the conductive base to form a claw-shaped structure;

the signal transmission structure comprises a first supporting copper sheet and a second supporting copper sheet which are electrically connected with each other, the first supporting copper sheet is installed inside the conductive base and is respectively connected with the conductive base and the flexible electrode gripper, and the second supporting copper sheet is installed outside the conductive base.

Furthermore, the flexible electrode grippers and the conductive base are of a conductive structure which is integrally arranged.

Further, the end of the flexible electrode gripper comprises a plurality of sub-tentacles.

Furthermore, the conductive base is further provided with a detachable fixing piece so as to fix the acquisition device of the bioelectricity signals through the detachable fixing piece.

Furthermore, the detachable fixing piece is a magic tape or a clamping piece.

This application can guarantee to pass the hair through the setting of flexible electrode tongs, overcomes the influence of hair to the noise of signal, and direct contact scalp carries out the collection of bio-electricity signal, not only need not to paint conducting resin (cream) between electrode and skin, has improved electroencephalogram measurement's convenience, has still shortened the measurement preparation time, lets the testee accept more easily to need not the shampoo after measuring, use comfortablely, can acquire electroencephalogram for a long time, measurement accuracy is high, the noise is low.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a bioelectrical signal acquisition device provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of another bioelectrical signal acquisition device provided in an embodiment of the present application.

Detailed Description

Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the positional descriptions, such as the directions of up, down, front, rear, left, right, etc., referred to herein are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present application.

In the description of the present application, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and larger, smaller, larger, etc. are understood as excluding the present number, and larger, smaller, inner, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present application, unless otherwise expressly limited, terms such as set, mounted, connected and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application by combining the detailed contents of the technical solutions.

The application provides a collection system of biological electricity signal. As shown in fig. 1, the bioelectrical signal acquisition apparatus 100 includes: collector and signal transmission structure.

The collector comprises a plurality of flexible electrode grippers 11 and a conductive base 12, wherein the flexible electrode grippers 11 are symmetrically arranged on two sides of the conductive base 12 to form a claw-shaped structure. Specifically, the flexible electrode gripper can be detachably mounted on the conductive base, and can also be integrally mounted on the conductive base. Specifically, the flexible electrode gripper and the conductive base can be made of conductive silica gel. In particular, the plurality of flexible electrode grips may all be disposed on the conductive base, such as symmetrically disposed on the conductive base. Specifically, two adjacent flexible electrode fingers are deployed at predetermined intervals. Specifically, the flexible electrode grippers and the conductive base are symmetrically arranged on two sides of the conductive base in a claw-shaped structure, namely, the part of the flexible electrode gripper extending out of the conductive base is bent inwards to form a J shape.

The signal transmission structure comprises a first supporting copper sheet and a second supporting copper sheet which are electrically connected with each other, the first supporting copper sheet is installed inside the conductive base and is respectively connected with the conductive base and the flexible electrode gripper 11, and the second supporting copper sheet is installed outside the conductive base. Specifically, the first supporting copper sheet can be symmetrically provided with mounting holes so as to fix the flexible electrode grippers onto the conductive base through the mounting holes, so that the first supporting copper sheet has the effects of filling and supporting the flexible electrode grippers in the conductive base, and the connection between the first supporting copper sheet and the flexible electrode grippers as well as the connection between the first supporting copper sheet and the conductive base can be completed. Specifically, the first supporting copper sheet and the second supporting copper sheet may be in contact connection, or may be connected by a bolt or the like. Specifically, the second supporting copper sheet may be disposed closely to one surface of the conductive base, and one end of the second supporting copper sheet extends into the conductive base to be electrically connected to the first supporting copper sheet.

Before the application, can be connected with external equipment through second support copper sheet. When the collector is applied, the collector is prevented from being placed on the top of the head, the conductive base is contacted with the scalp, the flexible electrode gripper slides down along the scalp due to deformation, the contact range of the collector and the scalp is expanded, and therefore the signal collection area of the scalp can be enlarged; meanwhile, the electric signals collected by the conductive base and the conductive gripper are transmitted to external equipment through the first supporting copper sheet and the second supporting copper sheet, and the purpose of collecting the bioelectricity signals is achieved.

In some embodiments, the plurality of flexible electrode grippers and the conductive base are integrally arranged to form a conductive structure, and any position of the first supporting copper sheet is in contact with the conductive base body in the integrally arranged manner, so that the electric signals acquired by the flexible electrode grippers and the conductive base can be transmitted.

In some embodiments, as shown in fig. 2, the end of the flexible electrode grip includes a plurality of tentacles 110. The arrangement of the separate tentacles increases the contact range of the flexible electrode hand grip and the scalp of the user, and enlarges the acquisition range of the bioelectricity signals.

In some embodiments, the conductive base is further provided with a detachable fixing member, so that the bioelectrical signal acquisition device is fixed through the detachable fixing member. For example, the bioelectrical signal acquisition device provided in the embodiment of the present application is fixed to a hair ring. Furthermore, the detachable fixing piece is a magic tape or a clamping piece. For example, if the detachable fixing member is a magic tape, the magic tape is generally provided with at least the back surface of the conductive base, and when the detachable fixing member is applied, the side provided with the magic tape is directly adhered to the hair ring. Specifically, the clamping piece generally comprises a buckle and a clamping tongue, and when the clamping piece is applied, the buckle can be fixed on the hair ring, the clamping tongue is fixed on the conductive base, and the clamping tongue is directly inserted into the buckle, so that the hair ring is fixed.

It should be noted that magic subsides and joint spare all are the structure that can dismantle the mounting, and during practical application, arbitrary one can be with the collection system of the bioelectricity signal that this application embodiment provided and other structures, if send out the circle, the structure of fixing all is the protection scope of this application, and here no longer lists one by one.

While the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An apparatus for acquiring a bioelectrical signal, comprising:

the signal transmission structure comprises a first supporting copper sheet and a second supporting copper sheet which are electrically connected with each other, the first supporting copper sheet is arranged inside the conductive base and is respectively connected with the conductive base and the flexible electrode gripper, and the second supporting copper sheet is arranged outside the conductive base.

2. The device of claim 1, wherein a plurality of the flexible electrode grips are integrally formed with the conductive base as a conductive structure.

3. The device of claim 1, wherein an end of the flexible electrode gripper comprises a plurality of spaced-apart tentacles.

4. The device as claimed in claim 1, wherein the conductive base is further provided with a detachable fixing member for fixing the bioelectrical signal collecting device through the detachable fixing member.

5. The device of claim 4, wherein the detachable fastener is a hook and loop fastener.