An electroencephalogram signal acquisition device

Abstract

The utility model discloses an electroencephalogram signal acquisition device, including: including first flexible band and second flexible band, be equipped with cavity on the first flexible band, the cavity is located first flexible band middle position, be equipped with control panel and battery in the cavity, be equipped with wire groove on the first flexible band, wire groove is located two ends of the cavity, be equipped with flexible wire in wire groove, the flexible wire is connected control panel with battery, the cavity top of first flexible band is equipped with second flexible band, second flexible band is embedded and is equipped with electrode piece, one surface of electrode piece exposes second flexible band outside, and the other surface of electrode piece is connected with flexible wire in wire groove. The utility model is convenient to assemble, and the structure is simple, can adapt to different head type and head circumference, avoids wearing discomfort, and electrode detection site layout design is reasonable, can gather the forehead, side forehead and brain back etc. The ring head part multi -point electroencephalogram signal of department, improves signal coverage range and data precision, provides more comprehensive support for electroencephalogram analysis.

Description

Technical Field

[0001] This utility model relates to the field of intelligent wearable device technology, and in particular to an electroencephalogram (EEG) signal acquisition device. Background Technology

[0002] Electroencephalography (EEG) technology detects and records electrical signals in the brain using electrode sensors, making it an important tool for brain science research and the diagnosis of neurological diseases. Traditional EEG devices typically attach multiple electrodes to the surface of the head in a regular pattern, using conductive gel to enhance signal quality. However, these devices have many limitations in practical use, particularly in acquiring comprehensive EEG data and improving the user experience.

[0003] Current EEG signal acquisition devices typically consist of an acquisition box, electrode leads, and acquisition electrodes. Before use, the user needs to wash their scalp and apply conductive gel, and a professional will attach the electrodes to the scalp. While this method can acquire EEG signals of a certain quality, the process is cumbersome, relies on professional personnel, and usually requires a fixed location. Furthermore, the application of conductive gel and the attachment of numerous electrodes result in poor comfort and a less than ideal experience for the user.

[0004] Meanwhile, existing EEG signal detection equipment is structurally inadequate to meet the requirements for comprehensive EEG data acquisition. Due to limitations in equipment structure and electrode distribution, signal acquisition from the sides of the forehead and the posterior brain region is often neglected, resulting in incomplete EEG signal data and consequently affecting the accuracy of detection and analysis. For example, activity in certain brain regions may be crucial for cognitive function and disease diagnosis, but missing data can lead to biased results. Furthermore, significant differences in head shape and circumference exist among individuals, making it difficult to adapt the equipment properly. Loose electrode fit or uneven pressure can also reduce the quality of acquired signals. Utility Model Content

[0005] To address at least the above-mentioned technical problems existing in the prior art, this utility model provides an electroencephalogram (EEG) signal acquisition device.

[0006] This utility model provides an electroencephalogram (EEG) signal acquisition device, including a first flexible band and a second flexible band. The first flexible band has a cavity located in the middle of the first flexible band. The cavity contains a control board and a battery. The first flexible band has wire grooves located at both ends of the cavity. Flexible wires are arranged in the wire grooves and connect the control board and the battery. The second flexible band is located above the cavity of the first flexible band. Electrode sheets are embedded in the second flexible band. One surface of the electrode sheet is exposed outside the second flexible band, and the other surface of the electrode sheet is connected to the flexible wire in the wire groove.

[0007] In some embodiments, the first flexible strip and the second flexible strip have corresponding openings penetrating the first flexible strip and the second flexible strip at both ends, and the openings at one end of the first flexible strip and the second flexible strip are detachably mounted with electrode claws, which are connected to the flexible wire.

[0008] In some embodiments, a metal ring is fitted over the opening, and the metal ring is disposed between the first flexible strip and the second flexible strip and connected to the flexible wire and the electrode claw.

[0009] In some embodiments, the electrode claw includes a claw comb, a support portion, and a locking protrusion. The claw comb and the locking protrusion are respectively disposed on both sides of the support portion. The locking protrusion is detachably passed through the opening, and the claw comb is disposed in the exposed direction of the electrode sheet.

[0010] In some embodiments, the cam can be detachably passed through the opening at one end of the first flexible strip and the second flexible strip, as well as the opening at the other end.

[0011] In some embodiments, the electrode claws are made of a conductive metal material.

[0012] In some embodiments, the electrode pad includes a forehead electrode pad and at least two lateral forehead electrode pads, the forehead electrode pad being disposed in the middle of the second flexible band, and the lateral forehead electrode pads being disposed on both sides of the forehead electrode pad.

[0013] In some embodiments, the first flexible strip is provided with a charging port (3) and a switch on both sides of the cavity, the charging port being connected to the battery and the switch being connected to the control board.

[0014] In some embodiments, the control board is equipped with a wireless transmission module.

[0015] In some embodiments, the first flexible strip and the second flexible strip are elastomeric materials, preferably silicone materials.

[0016] This utility model provides an electroencephalogram (EEG) signal acquisition device. During assembly, a control board and a battery are placed inside the cavity, and flexible wires are placed in the wire groove and connected to the control board and battery. A first flexible band and a second flexible band are fastened together and sealed with waterproof glue, thermoplastic, or other methods. The protrusions of the electrode claws can pass through the openings and be fixed to the EEG signal acquisition device. The claw combs are located in the same direction as the exposed electrode pads. At least one electrode claw is installed on the opening at one end of the EEG signal acquisition device. The opening at one end of the EEG signal acquisition device is used to detachably fix it to the already fixed protrusions, so that the EEG signal acquisition device is fixed into a ring shape, which is convenient to wear on the head of the person being tested. Multiple openings are provided at both ends of the EEG signal acquisition device to allow the tightness to be adjusted when the person being tested wears it, adapting to different head shapes and circumferences and avoiding discomfort. The EEG signal acquisition device is easy to assemble, has a simple structure, and is easy to disassemble and maintain.

[0017] This utility model discloses an EEG signal acquisition device. In use, the operator wears the device on the forehead, ensuring the electrode pads are in close contact with the forehead and sides of the head. The electrode claws are inserted through the hairline at the back of the head to touch the skin. The unsecured electrode claws are then secured to the protruding clips, thus achieving a ring-shaped secure fit. Clicking the switch activates a control board that connects the electrode pads and claws to acquire the EEG signals. This device eliminates the need for conductive gel, simplifying the process and improving user comfort. The multi-point electrode pads and claws are rationally designed, enabling the acquisition of EEG signals from multiple points around the head, including the forehead, sides, and back of the head, thus improving signal coverage and data accuracy and providing more comprehensive support for EEG analysis.

[0018] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0019] The above and other objects, features, and advantages of the present invention will become readily apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. Several embodiments of the present invention are illustrated in the drawings by way of example and not limitation, in which:

[0020] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0021] Figure 1 is a three-dimensional structural schematic diagram of an electroencephalogram (EEG) signal acquisition device according to an embodiment of the present invention;

[0022] Figure 2 is a three-dimensional structural diagram of an electroencephalogram (EEG) signal acquisition device in an embodiment of the present invention when worn;

[0023] Figure 3 is an exploded view of an electroencephalogram (EEG) signal acquisition device according to an embodiment of this utility model;

[0024] Figure 4 is a top view of the first flexible strip of an electroencephalogram (EEG) signal acquisition device according to an embodiment of the present invention;

[0025] Figure 5 is a top view of the second flexible strip of an electroencephalogram (EEG) signal acquisition device according to an embodiment of the present invention;

[0026] In the figure: 1: First flexible strip; 11: Cavity; 12: Wire groove; 13: Flexible wire; 14: Opening; 15: Control board; 16: Battery; 17: Metal ring; 2: Second flexible strip; 21: Electrode sheet; 211: Forehead electrode sheet; 212: Side forehead electrode sheet; 22: Electrode claw; 221: Claw comb; 222: Support part; 223: Card protrusion; 3: Charging port; 4: Switch. Detailed Implementation

[0027] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] As shown in Figures 1 to 5, this utility model provides:

[0029] The device comprises a first flexible band 1, a second flexible band 2, a charging port 3, and a switch 4. The first flexible band 1 and the second flexible band 2 have the same vertical projection shape. The first flexible band 1 includes a cavity 11, a wire groove 12, and a flexible wire 13. The cavity 11 is located in the middle of the first flexible band 1. A control board 15 and a battery 16 are fixedly installed inside the cavity 11. Wire grooves 12 are provided at both ends of the cavity 11, and flexible wires 13 are installed within the wire grooves 12 to connect the control board 15 and the battery 16. The charging port 3 connects to the battery 16, and the switch 4 connects to the control board 15. Electrode pieces 21 are embedded in the second flexible band 2. Electrode pieces 21 include a forehead electrode piece 211 and a lateral forehead electrode piece 212. One surface of the electrode piece 21 is exposed outside the EEG signal acquisition device, and the other surface of the electrode piece 21 is connected to the flexible wire 13 within the wire groove 12. Corresponding penetrations are provided at both ends of the first flexible band 1 and the second flexible band 2. The opening 14 has a metal ring 17 connected to a flexible wire 13. An electrode claw 22 is detachably mounted on the opening 14. The electrode claw 22 can contact the metal ring 17 to transmit EEG signals. The electrode claw 22 includes a claw comb 221, a support portion 222, and a locking protrusion 223. The claw comb 221 and the locking protrusion 223 are respectively disposed on both sides of the support portion 222.

[0030] When assembling the EEG signal acquisition device, the operator places the control board 15 and battery 16 into the cavity 11, places the flexible wire 13 into the wire groove 12 and connects it to the control board 15 and battery 16, and fastens the first flexible band 1 and the second flexible band 2 together. The first flexible band 1 and the second flexible band 2 are sealed and fastened by waterproof glue, thermoplastic or other means. The locking protrusion 223 of the electrode claw 22 can pass through the opening 14 and be fixed on the EEG signal acquisition device. The claw comb 221 is located in the same direction as the exposed electrode plate 21. At least one electrode claw 22 is installed on the opening 14 at one end of the EEG signal acquisition device. The opening 14 at one end of the EEG signal acquisition device is used to detachably fix it to the already fixed locking protrusion 223 so that the EEG signal acquisition device is fixed into a ring shape, which is convenient to wear on the head of the person to be tested. Multiple openings 14 are provided at both ends of the EEG signal acquisition device to adjust the tightness when the person to be tested wears it on their head to adapt to different head circumferences.

[0031] When using this EEG signal acquisition device to collect EEG signals, the operator wears the device on the forehead, ensuring that the frontal electrode 211 of the second flexible band 2 is in close contact with the forehead of the person being tested, and that the lateral electrode 212 of the second flexible band 2 is in close contact with both sides of the forehead of the person being tested. The claw comb 221 of the electrode claw 22 passes through the hair at the back of the head of the person being tested and touches the skin. The opening 14 of the unfixed electrode claw 22 is fastened to the buckle 223, so that the EEG signal acquisition device is securely worn on the head of the person being tested in a ring. The operator clicks the switch 4, causing the control board 15 to send a signal to connect the electrode 21 and the electrode claw 22 to acquire the EEG signal of the person being tested.

[0032] For example, as shown in Figure 1, at least two openings 14 can be provided. One end of the EEG signal acquisition device has at least two openings 14, and the other end of the EEG signal acquisition device has at least one opening 14 for installing electrode claws 22.

[0033] For example, the control board 15 and the battery 16 are detachably secured within the cavity 11. The securing method is not limited to embedding or gluing. The control board 15 can receive EEG signals transmitted by the electrode pads 21 and transmit them to the network wirelessly via Bluetooth for convenient data analysis. The battery 16 includes, but is not limited to, lithium batteries, flexible batteries, and nickel-metal hydride batteries.

[0034] For example, flexible conductors 13 include, but are not limited to, silver-plated copper wires, tin-plated copper wires, ultra-flexible silicone wires, carbon nanotube wires, or graphene wires.

[0035] For example, the electrode sheet 21 is completely sealed by being embedded in the second flexible strip 2, and the electrode sheet 21 includes, but is not limited to, dry electrode sheets, semi-dry electrode sheets, etc.

[0036] In some embodiments of this utility model, the first flexible strip 1 and the second flexible strip 2 are provided with corresponding openings 14 that penetrate the first flexible strip 1 and the second flexible strip 2 at both ends. An electrode claw 22 is detachably installed at one end of the opening 14 of the first flexible strip 1 and the second flexible strip 2, and the electrode claw 22 is connected to the flexible wire 13.

[0037] For example, as shown in Figure 2, the electrode claws 22 include, but are not limited to, metal electrode claws, conductive plastic electrode claws, etc., and the shape of the electrode claws 22 includes, but is not limited to, needle-shaped electrode claws, comb-shaped electrode claws, etc.

[0038] For example, the wire groove 12 passes through the opening 14, and the flexible wire 13 passes through the opening 14 and is connected to the electrode claw 22.

[0039] In some embodiments of this utility model, a metal ring 17 is fitted into the opening 14. The metal ring 17 is disposed between the first flexible strip 1 and the second flexible strip 2 and is connected to the flexible wire 13 and the electrode claw 22.

[0040] For example, the material of the metal ring 17 includes, but is not limited to, any conductor.

[0041] For example, the metal ring 17 can be disposed between the first flexible strip 1 and the second flexible strip 2, or it can be sleeved at the opening 14.

[0042] In an embodiment of this utility model, the electrode claw 22 includes a claw comb 221, a support portion 222, and a locking protrusion 223. The claw comb 221 and the locking protrusion 223 are respectively disposed on both sides of the support portion 222. The locking protrusion 223 is detachably passed through the opening 14. The claw comb 221 is disposed in the exposed direction of the electrode sheet 21.

[0043] For example, the metal ring 17 is the same size as the opening 14, the inner ring of the metal ring 17 is in separable contact with the latch protrusion 223 of the electrode claw 22, and the outer ring of the metal ring 17 is in separable contact with the flexible wire 13 to transmit the EEG signals acquired by the electrode claw 22.

[0044] For example, the wire groove 12 passes through the opening 14, and the flexible wire 13 passes through the opening 14 and connects to the latch protrusion 223 of the electrode claw 22.

[0045] For example, each electrode claw 22 has at least two or more claw combs 221.

[0046] In this embodiment of the present invention, the card protrusion 223 is detachable and passes through the opening 14 at one end of the first flexible strip 1 and the second flexible strip 2 and the opening 14 at the other end.

[0047] For example, as shown in Figure 2, when the protrusion 223 passes through the openings 14 at both ends, the person being tested can wear the EEG signal acquisition device in a fixed position and adjust the position of the openings 14 through which the protrusion 223 passes to adjust the overall size of the EEG signal acquisition device to accommodate different head circumferences.

[0048] In the embodiments of this utility model, the electrode claw 22 is made of a conductive metal material.

[0049] In an embodiment of this utility model, the electrode sheet 21 includes a forehead electrode sheet 211 and at least two or more side forehead electrode sheets 212. The forehead electrode sheet 211 is located in the middle of the second flexible strip 2, and the side forehead electrode sheets 212 are located on both sides of the forehead electrode sheet 211.

[0050] For example, as shown in Figures 1 and 5, the forehead electrode 211 is located in the middle of the second flexible strip 2 and is projected vertically above the cavity 11, while the side forehead electrode 212 is projected vertically above the wire groove 12.

[0051] In an embodiment of this utility model, a charging port 3 and a switch 4 are provided on both sides of the cavity 11 on the first flexible strip 1. The charging port 3 is connected to the battery 16, and the switch 4 is connected to the control board 15.

[0052] For example, the charging port 3 is connected to the battery 16 and the switch 4 is connected to the control board 15 via the flexible wire 13.

[0053] For example, charging port 3 includes, but is not limited to, USB-C, magnetic charging port, wireless charging interface, etc., and switch 4 includes, but is not limited to, mechanical button switch, touch switch, etc.

[0054] In embodiments of this utility model, the control board 15 is provided with a wireless transmission module, including but not limited to a Bluetooth module, a Wi-Fi module, an NFC module, etc.

[0055] In the embodiments of this utility model, the first flexible strip 1 and the second flexible strip 2 are elastomeric materials, including but not limited to silicone, natural rubber, polyurethane, etc.

[0056] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. Furthermore, the described specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0058] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An electroencephalogram signal acquisition device, characterized by, The device includes a first flexible strip (1) and a second flexible strip (2). The first flexible strip (1) has a cavity (11) located in the middle of the first flexible strip (1). A control board (15) and a battery (16) are disposed inside the cavity (11). A wire groove (12) is provided on the first flexible strip (1) located at both ends of the cavity (11). A flexible wire (13) is disposed inside the wire groove (12) and connects the control board (15) and the battery (16). The second flexible strip (2) is disposed above the cavity (11) of the first flexible strip (1). An electrode sheet (21) is embedded in the second flexible strip (2), and one surface of the electrode sheet (21) is exposed to the ground. Outside the second flexible strip (2), the other surface of the electrode sheet (21) is connected to the flexible wire (13) in the wire groove (12). The first flexible strip (1) and the second flexible strip (2) are provided with corresponding openings (14) that penetrate the first flexible strip (1) and the second flexible strip (2). The openings (14) at one end of the first flexible strip (1) and the second flexible strip (2) are detachably fitted with electrode claws (22). The electrode claws (22) are connected to the flexible wire (13). A metal ring (17) is fitted into the opening (14). The metal ring (17) is located between the first flexible strip (1) and the second flexible strip (2) and is connected to the flexible wire (13) and the electrode claws (22).

2. The electroencephalogram signal acquisition device according to claim 1, wherein, The electrode claw (22) includes a claw comb (221), a support portion (222), and a locking protrusion (223). The claw comb (221) and the locking protrusion (223) are respectively disposed on both sides of the support portion (222). The locking protrusion (223) is detachably passed through the opening (14). The claw comb (221) is disposed in the exposed direction of the electrode sheet (21).

3. The electroencephalogram (EEG) signal acquisition device according to claim 2, characterized in that, The card protrusion (223) is detachable and passes through the opening (14) at one end of the first flexible strip (1) and the second flexible strip (2) and the opening (14) at the other end.

4. The EEG signal acquisition device according to claim 2, characterized in that, The electrode claw (22) is made of a conductive metal material.

5. The electroencephalogram (EEG) signal acquisition device according to claim 1, characterized in that, The electrode sheet (21) includes a forehead electrode sheet (211) and at least two side forehead electrode sheets (212). The forehead electrode sheet (211) is located in the middle of the second flexible strip (2), and the side forehead electrode sheets (212) are located on both sides of the forehead electrode sheet (211).

6. The electroencephalogram (EEG) signal acquisition device according to claim 1, characterized in that, The first flexible strip (1) is provided with a charging port (3) and a switch (4) on both sides of the cavity (11). The charging port (3) is connected to the battery (16), and the switch (4) is connected to the control board (15).

7. The electroencephalogram (EEG) signal acquisition device according to claim 5, characterized in that, The control board (15) is equipped with a wireless transmission module.

8. The electroencephalogram (EEG) signal acquisition device according to claim 1, characterized in that, The first flexible strip (1) and the second flexible strip (2) are made of elastomeric materials, specifically silicone materials.

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