阅读说明：本技术 一种电流刺激及脑电采集一体的电极帽 (Electrode cap integrating current stimulation and electroencephalogram acquisition ) 是由 刘成杰 龙景焱 于 2021-08-19 设计创作，主要内容包括：本发明公开了一种电流刺激及脑电采集一体的电极帽,包括：电极帽本体、保护装置和多个电刺激及脑电采集组件；所述电极帽本体为半球形帽状件,所述保护装置设置在所述电极帽本体底壁外侧；多个所述电刺激及脑电采集组件包括沿着其经线方向和其纬线方向均匀排布,所述电刺激及脑电采集组件包括环形接电组件和接触头组件,所述环形接电组件均通过导线电连接；所述环形接电组件包括环形脑电采集插口和电刺激电极探头；所述接触头组件包括电连接的螺纹通电部和接触头,所述螺纹通电部通过螺纹安装于所述环形脑电采集插口且所述螺纹通电部与所述环形脑电采集插口电连接,所述电刺激电极探头插入到所述螺纹通电部,所述接触头用于与人脑抵接。(The invention discloses an electrode cap integrating current stimulation and electroencephalogram acquisition, which comprises: the electrode cap comprises an electrode cap body, a protection device and a plurality of electrical stimulation and brain electricity acquisition components; the electrode cap body is a hemispherical cap-shaped piece, and the protection device is arranged on the outer side of the bottom wall of the electrode cap body; the plurality of electrical stimulation and electroencephalogram acquisition components are uniformly distributed along the warp direction and the weft direction of the electrical stimulation and electroencephalogram acquisition components, each electrical stimulation and electroencephalogram acquisition component comprises an annular power connection component and a contact head component, and the annular power connection components are electrically connected through wires; the annular power connection assembly comprises an annular electroencephalogram acquisition socket and an electrical stimulation electrode probe; the contact assembly comprises a thread electrifying part and a contact which are electrically connected, the thread electrifying part is installed on the annular electroencephalogram acquisition socket through threads, the thread electrifying part is electrically connected with the annular electroencephalogram acquisition socket, the electrical stimulation electrode probe is inserted into the thread electrifying part, and the contact is used for being abutted to the brain of a person.)

1. The utility model provides an integrative electrode cap is gathered to current stimulation and brain electricity which characterized in that includes: the electrode cap comprises an electrode cap body, a protection device and a plurality of electrical stimulation and brain electricity acquisition components; the electrode cap body is a hemispherical cap-shaped piece, and the protection device is arranged on the outer side of the bottom wall of the electrode cap body; the plurality of electrical stimulation and electroencephalogram acquisition components are uniformly distributed along the warp direction and the weft direction of the electrical stimulation and electroencephalogram acquisition components, each electrical stimulation and electroencephalogram acquisition component comprises an annular power connection component and a contact head component, and the annular power connection components are electrically connected through wires; the annular power connection assembly comprises an annular electroencephalogram acquisition socket and an electrical stimulation electrode probe; the contact assembly comprises a thread electrifying part and a contact which are electrically connected, the thread electrifying part is installed on the annular electroencephalogram acquisition socket through threads, the thread electrifying part is electrically connected with the annular electroencephalogram acquisition socket, the electrical stimulation electrode probe is inserted into the thread electrifying part, and the contact is used for being abutted to the brain of a person.

2. The electrode cap integrating current stimulation and electroencephalogram acquisition as claimed in claim 1, wherein the contact head is elastically connected to a threaded electrifying part.

3. The current stimulation and electroencephalogram acquisition integrated electrode cap according to claim 1, wherein the electrical stimulation and electroencephalogram acquisition component further comprises a signal processing device, and the signal processing device is connected to the annular electroencephalogram acquisition socket.

4. The integrated current stimulation and brain electricity collection electrode cap according to claim 2, wherein the number of the electrical stimulation and brain electricity collection components is any one of 16, 32, 64, 128 and 256.

5. The electrode cap integrating current stimulation and electroencephalogram acquisition as claimed in claim 3, wherein the threaded electrifying part is made of conductive plastic.

6. The electrode cap integrating current stimulation and electroencephalogram acquisition as claimed in claim 1, wherein the radius of the electrode cap body is 12cm, and the thickness of the electrode cap body is 1 cm.

7. The electrode cap integrating current stimulation and electroencephalogram acquisition as claimed in claim 6, wherein the electrode cap body is made of light hard plastic.

8. The electrode cap integrating current stimulation and electroencephalogram acquisition as claimed in claim 1, further comprising a nylon belt, wherein the nylon belt is mounted at the edge of the opening of the electrode cap body.

Technical Field

The invention relates to the technical field of medical equipment, in particular to an electrode cap integrating current stimulation and electroencephalogram acquisition.

Background

Transcranial direct current stimulation is a non-invasive technology for regulating the activity of neurons in cerebral cortex, and the direct current strength used by the technology is low and constant (0.5-2 mA), and the duration is generally 5-30 min. In recent years, transcranial direct current stimulation has been widely researched and applied in the fields of neuroscience, neuropathology and the like due to the characteristics of low cost, strong portability, prominent regulation and control effect and the like. The physiological effect and the implementation mode of the transcranial direct current stimulation are introduced, and the research status and the development trend of the application of the transcranial direct current stimulation to the brain cognitive function regulation are discussed respectively from the aspects of learning, memory, attention, perception, emotion, decision and the like.

In recent years, neurological diseases have become diseases with high mortality, morbidity and disability rate in the world. In the research of scientists, the prevalence of many neurological diseases increases with age, particularly neurodegenerative diseases such as Parkinson's Disease (PD) and dementia. According to the census data of the Chinese continent at the end of 2014, 21242 million people are in the age of 60 and above, wherein about one million people suffer from PD in the age of 60.

In recent years, non-invasive brain Stimulation has been reported to have great potential value for clinical treatment of neuropsychiatric diseases such as PD, stroke, neuropathic pain, aphasia, depression and cognitive dysfunction, such as Transcranial Direct Current Stimulation (tDCS) and Transcranial Magnetic Stimulation (TMS), but tDCS is a safer, economical, noninvasive, simple and feasible technology compared to TMS, has cheap equipment support and effective Stimulation parameters compared to TMS, and no report of inducing epileptic seizure is found at present. In recent years, by combining with modern medical signal analysis and imaging technologies such as functional magnetic resonance imaging, single photon emission layer imaging, electroencephalogram signals and the like, people can analyze specific action mechanisms of the tDCS and influences on neuropsychiatric diseases at the level of brain tissues and neurophysiology.

Early electrode caps used for EEG measurements used soft braided caps with some elasticity. This electrode cap secures the electrodes to the soft woven mesh of the cap. The electrode is contacted with scalp of the tested person through the conductive paste. Due to the fact that head shapes of different people are different, tightness degrees of electrodes on the electrode cap and scalps at different parts are different, the structure cannot guarantee that all the electrodes are effectively contacted with the scalps, measuring resistance of some electrodes is increased, and data generated by measurement are inaccurate.

Disclosure of Invention

The invention provides an electrode cap integrating current stimulation and electroencephalogram acquisition, and aims to solve the problems.

According to the integrative electrode cap of current stimulation and brain electricity collection that this application embodiment provided, include: the electrode cap comprises an electrode cap body, a protection device and a plurality of electrical stimulation and brain electricity acquisition components; the electrode cap body is a hemispherical cap-shaped piece, and the protection device is arranged on the outer side of the bottom wall of the electrode cap body; the plurality of electrical stimulation and electroencephalogram acquisition components are uniformly distributed along the warp direction and the weft direction of the electrical stimulation and electroencephalogram acquisition components, each electrical stimulation and electroencephalogram acquisition component comprises an annular power connection component and a contact head component, and the annular power connection components are electrically connected through wires; the annular power connection assembly comprises an annular electroencephalogram acquisition socket and an electrical stimulation electrode probe; the contact assembly comprises a thread electrifying part and a contact which are electrically connected, the thread electrifying part is installed on the annular electroencephalogram acquisition socket through threads, the thread electrifying part is electrically connected with the annular electroencephalogram acquisition socket, the electrical stimulation electrode probe is inserted into the thread electrifying part, and the contact is used for being abutted to the brain of a person.

In the electrode cap integrating current stimulation and electroencephalogram collection, the contact head is elastically connected to the threaded electrifying part.

In the electrode cap integrating current stimulation and electroencephalogram acquisition, the electrical stimulation and electroencephalogram acquisition component further comprises a signal processing device, and the signal processing device is connected to the annular electroencephalogram acquisition socket.

In the current stimulation and brain electricity collection integrated electrode cap, the number of the electrical stimulation and brain electricity collection components is any one of 16, 32, 64, 128 and 256.

In the electrode cap integrating current stimulation and electroencephalogram collection, the thread electrifying part is made of conductive plastic.

In the electrode cap integrating current stimulation and electroencephalogram collection, the radius of the electrode cap body is 12cm, and the thickness of the electrode cap body is 1 cm.

In the electrode cap integrating current stimulation and electroencephalogram collection, the electrode cap body is made of light hard plastic.

The electrode cap integrating current stimulation and electroencephalogram collection further comprises a nylon belt, and the nylon belt is mounted on the edge of the opening of the electrode cap body.

The technical scheme provided by the embodiment of the application can have the following beneficial effects: the application designs an electrode cap that current stimulation and brain electricity were gathered integratively, and the electrode point that the current stimulation was gathered and the electrode point that the brain electricity was gathered share a position to can insert the screw thread circular telegram portion through electro photoluminescence electrode probe and realize connecting, when electro photoluminescence electrode probe extracted, the electrode point of this position was just for the state of opening a circuit.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural view of an electrode cap according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a partial structure of an electrical stimulation and brain electrical acquisition assembly of an electrode cap in accordance with an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an annular power connection assembly of an electrode cap according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a contact head assembly part of an electrode cap according to an embodiment of the present invention.

Description of reference numerals:

10. an electrode cap body; 20. a protection device; 30. an electrical stimulation and brain electrical acquisition component; 31. an annular power connection assembly; 311. an annular electroencephalogram acquisition socket; 312. an electrical stimulation electrode probe; 32. a contact head assembly; 321. a thread energizing part; 3211. a sliding chamber section; 322. a contact head; 323. a spring; 33. a signal processing device; 40. a nylon band.

Detailed Description

The technical solutions 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 some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

Referring to fig. 1-4, the invention discloses an electrode cap integrating current stimulation and electroencephalogram collection, which comprises an electrode cap body 10, a protection device 20 and an electrical stimulation and electroencephalogram collection component 30. The number of the electrical stimulation and brain electricity collection components 30 is a plurality, and the electrode cap body 10 is a hemispherical cap-shaped piece. The protector 20 is disposed outside the bottom wall of the electrode cap body 10. A plurality of electric stimulations and brain electricity collection assembly 30 evenly arranges along its warp direction and weft direction, and electric stimulations and brain electricity collection assembly 30 connects electric subassembly 31 and contact head subassembly 32 including the annular, and the annular connects electric subassembly 31 all to be connected through the wire, and the annular connects electric subassembly 31 and connect in protection device 20, comes to monitor electric stimulation intensity and amazing mode through protection device 20, prevents that electric stimulation intensity is too big and amazing mode is improper, causes the influence to the human body. The annular power connection assembly 31 comprises an annular electroencephalogram acquisition socket 311 and an electrical stimulation electrode probe 312, and the contact head assembly 32 comprises an electrical connection threaded power connection part 321 and a contact head 322. The thread electrifying part 321 is installed in the annular electroencephalogram collection socket 311 through threads, and the thread electrifying part 321 is electrically connected with the annular electroencephalogram collection socket 311. The electrostimulation electrode probe 312 is inserted into the threaded electrical portion 321 such that the annular electrical receptacle is electrically connected to the contact tip 322. The contact head 322 is used for abutting against the human brain, stimulating the human brain through the contact head 322 and detecting the change of human brain electrical signals in real time. The electrode points stimulated by the current and the electrode points collected by the electroencephalogram share one part, and can be connected by inserting the electrostimulation electrode probe 312 into the thread electrifying part 321, and when the electrostimulation electrode probe 312 is pulled out, the electrode points at the position are in an open circuit state; a plurality of electrostimulations and brain electricity collection component 30 are including evenly arranging along its warp direction and its weft direction, and a plurality of electrode points are evenly arranged along its warp direction and its weft direction promptly, and when electrode point position is incorrect, only need extract the electrostimulation electrode probe 312 of incorrect electrode point position department, with the electrostimulation electrode probe 312 of correct electrode point position department insert can, electrode point on the market is fixed the setting, inconvenient user uses.

The electroencephalogram acquisition comprises three types of ground electrodes, reference electrodes and recording electrodes. The ground electrode and the reference electrode can be connected to the ear lobe of the human body, and the recording electrode is connected to the brain region, i.e. the annular power connection component 31. The electrostimulation electrode comprises a positive electrode and a negative electrode, the positive electrode and the negative electrode can be mutually switched through a circuit, and the positive electrode and the negative electrode are replaced by an electrode 1 and an electrode 2. The electrodes 1 and 2 are electrical stimulation electrode probes 312, and the electrical stimulation electrode probes 312 are connected to the annular electrical connection assemblies 31 in different brain areas through the threaded electrical connection parts 321. When the electroencephalogram acquisition and the electrical stimulation start to work simultaneously, the recording electrode of the electroencephalogram and the electrode 2 of the electrical stimulation are connected with the brain area through the contact head assembly 32. The electroencephalogram acquisition and the electrical stimulation belong to different current loops, and can share the same contact 322 to work.

In an alternative embodiment, the threaded portion 321 is made of conductive plastic, which is a commercially available technology and will not be described herein.

In an alternative embodiment, the contact head 322 is resiliently connected to the threaded energizing portion 321. Specifically, one end of the screw energizing portion 321 near the contact 322 is provided with a sliding cavity portion 3211, and the contact 322 is connected to the bottom wall of the sliding cavity portion 3211 by a spring 323. The shape of the human brain is slightly different, and the contact head 322 can be fully contacted with the human brain by arranging the spring 323, so that the data acquired by the electroencephalogram is more accurate.

In an alternative embodiment, the present application further comprises a nylon tape 40, the nylon tape 40 is disposed at the edge of the opening of the electrode cap body 10, and the electrode cap body 10 is fixed on the brain of the human body by the nylon tape 40. The number of the nylon tapes 40 may be provided in two, and two nylon tapes 40 are provided at both ends of the diameter of the opening of the electrode cap body 10.

In an alternative embodiment, the electrical stimulation and brain electrical acquisition assembly 30 further comprises a signal processing device 33, and the signal processing device 33 is connected to the annular brain electrical acquisition socket 311. Because the electrodes for electrical stimulation and electroencephalogram acquisition are close to each other, the signal processing device 33 is arranged to amplify the data acquired by the electroencephalogram signals so as to increase the accuracy of the data acquired by the electroencephalogram signals. Because electroencephalogram signals are small signals and are easily subjected to various interferences, the longer the path from a brain area to a signal processing circuit, the more easily the electroencephalogram signals are subjected to the interferences, and the distortions are caused. A signal processing means 33 is added. The voltage follower circuit inside 33 has a current amplification function and a characteristic of high input impedance. And the small signals are subjected to current amplification and then are transmitted to the signal processing circuit through the conducting wire. Therefore, the anti-interference capability of the electroencephalogram signals can be improved.

In an alternative embodiment, the radius of the electrode cap body 10 is 12cm, and the thickness of the electrode cap body 10 is 1 cm. For adult people, the radius of the hemispherical helmet can be 12 cm; the mesh design is then made according to typical electrode density specifications with electrode numbers of 16, 32, 64, 128 and 256, i.e., the number of electrical stimulation and brain electrical acquisition assemblies 30 is any of 16, 32, 64, 128 and 256. The case of 16 electrodes is generally designed by the international 10-20 electrode specification, and can also be approximately uniformly distributed. The case where the number of electrodes is 96 is described as an example. Firstly, marking the spherical polar coordinates of each point on a concentric circle with the section radius of 11cm, 9cm, 7cm, 5cm and 3cm of the hemispherical helmetThen, holes perpendicular to the hemispherical surface were formed at intervals of 15 degrees on concentric circles having radii of 11cm, 9cm, and 7cm, and holes perpendicular to the hemispherical surface were formed at intervals of 30 degrees on concentric circles having radii of 5cm and 3 cm. The design method of the electrode position meets the requirement that the spatial resolution of the electroencephalogram is 1-3 cm. Then the distribution of the current stimulating electrodes is fixed according to the treatment requirement, and the polar coordinates of each electrode are determinedWhile the radius of each electrode is unique. With coordinates of a sphereRectangular coordinates (x, y, z) of each electrode can be obtained through simple calculation, and then a real head model of the measured person can be drawn on a computer through the rectangular coordinates by an interpolation method. The probes can be arranged on the helmet according to the requirements of a user, and the number of the probes is less than or equal to 97; therefore, the electrode cap of the electroencephalogram acquisition system suitable for adults in China can be manufactured.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.