Addressable modular comb-shaped brain electrode

Abstract

The utility model provides an addressable modularized comb-shaped brain electrode which comprises an electrode socket arranged on a base and an electrode module which is arranged on the base and can be attached to the head of a user, and the electrode module comprises an addressing chip with a unique 64-bit serial number; the ten connectors are detachably installed on the base and can be attached to the head of a user; the electrode socket is a PJ-320D interface, and a pin of the PJ-320D interface is connected with the addressing chip and the connector. According to the utility model, the position and the number of each electrode can be accurately identified, the normal work of each electrode is ensured, and the collected signals are ensured to accurately correspond to a specific region of the brain.

Description

Technical Field

[0001] This utility model relates to the field of electroencephalogram (EEG) signal acquisition equipment technology, specifically an addressable modular comb-shaped EEG electrode. Background Technology

[0002] The acquisition and analysis of electroencephalogram (EEG) signals, and more in-depth neural signals from the brain, are crucial aspects of brain science research, brain-computer interface (BCI) technology, and the diagnosis and treatment of neurological diseases. These signals can provide rich information about brain activity, helping researchers understand the function of neural circuits, diagnose neurological disorders, and even control external devices. Existing EEG systems typically consist of multiple electrode elements, commonly designed with multiple electrodes connected by cables or fixed to an array plate.

[0003] However, most existing brain electrode systems do not assign a unique identifier or serial number to each electrode. In these systems, the state of the electrodes is often difficult to manage or track in real time. Especially when multiple electrodes are working together and one electrode malfunctions, operators must rely on manual inspection, checking the working condition of each electrode one by one, or on external testing equipment for diagnosis. This approach is not only inefficient but also prone to errors or missed detections. Particularly in complex EEG monitoring, the inability to quickly identify the state of each electrode can affect the stability of the overall system. Utility Model Content

[0004] To address the aforementioned technical problems, this invention provides an addressable modular comb-shaped brain electrode that can accurately identify the location and number of each electrode, ensuring that each electrode functions normally and that the acquired signals accurately correspond to specific areas of the brain.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an addressable modular comb-shaped brain electrode, comprising an electrode socket disposed on a base and an electrode module disposed on the base and conforming to the user's head. The electrode module includes: an addressing chip having a unique 64-bit serial number; 10 connectors detachably mounted on the base and conforming to the user's head; and a PJ-320D interface for the electrode socket, with pins of the PJ-320D interface connecting the addressing chip and the connectors.

[0006] Preferably, pin 1 of the PJ-320D interface is connected to 10 connectors, and pins 2, 3, and 4 are connected to the VCC, I / O, and GND of the corresponding addressing chip, respectively.

[0007] Preferably, the addressing chip is DS2411R+T&R.

[0008] Preferably, the connector uses copper pins, with multiple copper pins vertically arranged on the base.

[0009] Preferably, the connector uses a spring pin.

[0010] Preferably, the copper needle includes: a connector, which is detachably inserted into a mounting hole in the base and connected to the addressing chip; a telescopic post, one end of which is disposed on the connector and the other end away from the connector has a telescopic groove; a copper needle body, one end of which is slidably inserted into the telescopic groove and connected to the bottom wall of the telescopic groove through an elastic element; and a limiting element, which is disposed on the end of the copper needle body inserted into the telescopic groove and slides within the telescopic groove.

[0011] Preferably, the limiting component includes a limiting block slidably disposed on one end of the copper needle body that passes through the telescopic groove, and the limiting block slides along the length direction of the copper needle body on the wall of the telescopic groove.

[0012] Preferably, the elastic element includes a limiting spring that passes through the telescopic groove along the length of the copper needle body, with the two ends of the limiting spring connected to the bottom wall of the telescopic groove and one end of the copper needle body, respectively.

[0013] Preferably, the elastic element includes two magnets disposed in the telescopic groove. The two magnets are respectively fixedly disposed on the bottom wall of the telescopic groove and on one end of the copper needle body near the bottom wall of the telescopic groove, and the magnetic poles of the two magnets are the same at adjacent ends.

[0014] The beneficial effects of this utility model are:

[0015] 1. The addressing chip has a unique 64-bit serial number, which improves the accuracy of electrode identification and positioning. During the EEG signal acquisition process, it can accurately identify the position and number of each electrode, thereby ensuring that the acquired signal can accurately correspond to a specific area of ​​the brain, and facilitating rapid location and replacement in case of electrode failure or damage.

[0016] 2. The connector can be easily detached and installed on the electrode socket, simplifying the electrode installation and removal process. This not only saves time but also reduces operational difficulty. Furthermore, the stable and reliable connection between the connector and the electrode socket ensures the quality and stability of the signal during transmission. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the circuit principle structure of the addressable modular comb-shaped brain electrode proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the addressable modular comb-shaped brain electrode of this utility model.

[0020] Figure 3 This is a schematic diagram of the three-dimensional, bottom-view structure of the addressable modular comb-shaped brain electrode of this utility model.

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the copper needle of this utility model.

[0022] In the diagram: 1. Electrode socket; 2. Addressing chip; 3. Copper needle; 4. Connector; 5. Telescopic post; 6. Telescopic groove; 7. Copper needle body; 8. Limiting spring; 9. Limiting block. Detailed Implementation

[0023] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the embodiments without creative effort are all within the protection scope of this utility model.

[0024] Please see Figure 1-4 An addressable modular comb-shaped brain electrode is disclosed, comprising an electrode socket 1 mounted on a base and an electrode module mounted on the base and conforming to the user's head. The electrode module includes an addressing chip 2 with a unique 64-bit serial number, improving electrode identification and positioning accuracy. During EEG signal acquisition, the location and number of each electrode can be accurately identified, ensuring that the acquired signal accurately corresponds to a specific area of ​​the brain. This is crucial for subsequent signal processing and analysis. Ten connectors allow for detachable mounting on the base and conformation to the user's head, improving signal acquisition quality. Furthermore, the comb-like structure allows the electrodes to easily comb through hair and directly contact the scalp, avoiding the difficulty of detangling or tangling hair in long-haired subjects using traditional electrodes. This design not only improves electrode comfort but also enhances signal stability and reliability. The electrode socket 1 uses a PJ-320D interface, facilitating connection to other devices or systems for signal transmission and processing. This design not only improves signal transmission efficiency but also facilitates subsequent signal processing and analysis. Furthermore, due to the standardized and universal nature of the interface, it can seamlessly interface with other devices or systems. The PJ-320D interface pins connect to the addressing chip and connector 2 and connector 3.

[0025] like Figure 1-4As shown, this EEG electrode utilizes a unique modular design and electrical connection method to meet the diverse needs of EEG signal acquisition electrodes in scientific research, medical applications, and other fields. The design of this EEG electrode combines practicality and flexibility, achieving efficient data acquisition through a host computer connection, modular design, and a spring-loaded, adaptable comb-like shape.

[0026] This invention assigns a unique 64-bit serial number to each electrode using the DS2411R+T&R chip, enabling individual identification of each electrode. Users can view the real-time status information of each electrode via a host computer, including whether it has expired, malfunctioned, or needs replacement. This allows the system to quickly identify the specific electrode when a problem occurs, reducing manual inspection time and errors, and improving the overall system reliability and management efficiency. Because each electrode has a unique identifier, fault tracking and management become more precise and efficient.

[0027] The brain electrodes of this invention employ a modular design, with each electrode designed as an independent unit. This design not only makes the electrode array layout more flexible but also allows for adjustments to the arrangement and distribution of electrodes as needed. For example, users can rearrange the electrode positions to optimize signal acquisition coverage based on the specific needs of the patient or the requirements of the experiment. Furthermore, the modular design allows for independent replacement or updates of different functional units as needed, greatly improving the system's adaptability and flexibility; each electrode module can be maintained independently, making electrode unit replacement and updates more convenient. In the event of electrode failure, users do not need to replace the entire electrode array, but only need to replace or repair the problematic individual electrode, thereby reducing maintenance costs and downtime. In addition, the unique serial number of each electrode allows users to quickly locate the problematic electrode, further shortening the maintenance cycle and improving equipment availability. Through the electrode status management system, users can monitor the module's operating status in real time, facilitating early identification of potential problems, reducing downtime, and ensuring efficient system operation.

[0028] Pin 1 of the PJ-320D interface connects to 10 connectors, while pins 2, 3, and 4 connect to the VCC, I / O, and GND of the corresponding addressing chips, respectively, for signal power supply, communication, and electrical connection of each electrode module, thereby ensuring the stability and reliability of the electrical connection.

[0029] Addressing chip 2 uses the DS2411R+T&R, which has a unique 64-bit serial number, providing accurate module identification for the system. This allows each electrode module to be managed independently. The addressing chip design can also be replaced by signal identification and management via host computer software. The advantages are that reducing the use of addressing chips significantly saves material costs, simplifies circuit design, and reduces development difficulty, making it very suitable for scenarios with low independent addressing requirements. The disadvantages are that the host computer software needs to have signal discrimination and management functions, increasing development difficulty, and signal processing is entirely software-dependent, potentially increasing latency.

[0030] The addressing chip identifies each module with a unique 64-bit serial number, enabling the system to quickly read and locate the module's status. When a module malfunctions, the user can quickly identify the problem location and replace it without interrupting the normal operation of other modules, greatly improving the equipment's reliability and maintenance efficiency.

[0031] This comb-shaped EEG electrode achieves flexibility and scalability through a modular design. Each electrode module is an independent unit, allowing users to freely adjust the number and layout of modules according to actual application needs. The modules are connected via a plug-in interface, making installation and disassembly extremely convenient and greatly facilitating rapid deployment and adjustment of the device. Furthermore, as an integrable unit, the comb-shaped EEG electrode supports the integration of other biosignal acquisition functions, such as brain oxygen signal acquisition, enabling multi-parameter brain function monitoring.

[0032] This EEG system achieves precise control of signal acquisition through addressing technology. Each module can independently acquire EEG signals, and the equipped addressing chip ensures the uniqueness and traceability of the signal source. The system can monitor the working status of each module in real time, quickly locate the physical position of the module and identify its status during signal acquisition. When a module malfunctions, the user can quickly take replacement or repair measures, maximizing the continuity and reliability of signal acquisition.

[0033] When multiple connectors are mounted on the base, they form a comb-like structure. This comb-like electrode design allows for efficient and precise contact between the EEG electrodes and the scalp. The comb shape covers a wider area of ​​the scalp, ensuring uniform and stable signal acquisition. The scalp contact design of each module contributes to improved signal acquisition accuracy, and the spring structure adapts to different scalp curvatures, ensuring stable contact between the electrodes and the skin. This design effectively reduces signal loss or interference caused by poor contact, improving the quality of EEG signal acquisition. Furthermore, the comb-like electrode shape offers a degree of comfort, preventing discomfort during wear and making it suitable for extended use, particularly in medical and research fields.

[0034] The connector uses copper pins 3, and multiple copper pins 3 are vertically arranged on the base. The connector uses spring pins, and these connectors have an internal spring structure that can adapt to different scalp curvatures, ensuring stable contact between the electrode and the scalp, thereby improving the accuracy and stability of signal acquisition.

[0035] The connector can also be the YZ160615045R-01 connector.

[0036] The copper needle 3 can be replaced by a fixed-length needle-like contact component. The advantage is that it eliminates the need for complex spring structure processing, reducing production difficulty, spring material and processing costs, and making it suitable for disposable applications. The disadvantage is that it cannot flexibly adjust the contact depth, making it unsuitable for users with large scalp curvature, leading to poor contact and affecting the collection effect. At the same time, the fixed needle length may cause discomfort when wearing it, affecting the user experience.

[0037] The copper needle 3 includes: a connector 4, which is detachably inserted into the mounting hole of the base and connected to the addressing chip 2; a telescopic post 5, one end of which is set on the connector 4 and the other end away from the connector 4 has a telescopic groove 6; a copper needle body 7, one end of which is slidably inserted into the telescopic groove 6 and connected to the bottom wall of the telescopic groove 6 through an elastic element; and a limiting element, which is set on the end of the copper needle body 7 inserted into the telescopic groove 6 and slides within the telescopic groove 6.

[0038] The limiting component includes a limiting block 9 that is slidably disposed on one end of the copper needle body 7 that passes through the telescopic groove 6. The limiting block 9 slides along the length direction of the copper needle body 7 on the wall of the telescopic groove 6.

[0039] like Figure 4 As shown, when the copper needle 3 is installed in the mounting hole through the connector 4, and moves through the telescopic groove 6 opened at the end of the telescopic column 5 away from the connector 4, the copper needle body 7 is set on the bottom wall of the telescopic groove 6 through an elastic element, which ensures that the copper needle body 7 can slide in the telescopic groove 6, ensures that multiple copper needle bodies 7 are tightly attached to the scalp, and ensures that multiple copper needle bodies 7 are all attached to the scalp, thus ensuring the stability and accuracy of signal acquisition.

[0040] The elastic element includes a limiting spring 8 that passes through the telescopic groove 6 along the length of the copper needle body 7. The two ends of the limiting spring 8 are respectively connected to the bottom wall of the telescopic groove 6 and one end of the copper needle body 7. By using the limiting spring 8, on the one hand, the production cost is reduced while ensuring that the copper needle body 7 has the function of sliding and limiting within the telescopic groove 6, and on the other hand, it is easy to obtain and use.

[0041] The elastic element includes two magnets disposed in the telescopic groove 6. The two magnets are respectively fixed on the bottom wall of the telescopic groove 6 and the end of the copper needle body 7 near the bottom wall of the telescopic groove 6. The magnetic poles of the two magnets are the same at adjacent ends. The use of two magnets also has the same function as the limiting spring 8, ensuring that the copper needle body 7 is limited while sliding in the telescopic groove 6.

[0042] In alternative solutions of this invention, the non-spring contact design and host computer software addressing have certain limitations in terms of signal acquisition stability, ease of installation, and flexibility of application scenarios. In contrast, the addressable modular comb-shaped brain electrode of this invention has significant advantages in modular design, scalability, and precise addressing management, making it particularly suitable for scientific research experiments, multi-parameter monitoring, and complex application environments. Furthermore, its flexible layout and rapid fault replacement capabilities are difficult to achieve with other solutions. Therefore, the solution of this invention still possesses unique technical advantages and broad application prospects.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An addressable modular comb-shaped brain electrode, comprising an electrode socket (1) disposed on a base, and an electrode module disposed on the base and conforming to the user's head, characterized in that, The electrode module includes: Addressing chip (2), the addressing chip has a unique 64-bit serial number; 10 connectors, detachably mounted on the base and fit snugly to the user's head; The electrode socket (1) is a PJ-320D interface. The pins of the PJ-320D interface are connected to the addressing chip and the connector (2) and the connector.

2. The addressable modular comb-shaped brain electrode according to claim 1, characterized in that: Pin 1 of the PJ-320D interface connects to 10 connectors, and pins 2, 3, and 4 connect to the VCC, I / O, and GND of the corresponding addressing chip, respectively.

3. The addressable modular comb-shaped brain electrode according to claim 1, characterized in that: The addressing chip (2) adopts DS2411R+T&R.

4. The addressable modular comb-shaped brain electrode according to claim 1, characterized in that: The connector uses copper pins (3), and multiple copper pins (3) are vertically arranged on the base.

5. An addressable modular comb-shaped brain electrode according to claim 1, characterized in that: The connector uses spring pins.

6. An addressable modular comb-shaped brain electrode according to claim 4, characterized in that: The copper needle (3) includes: The connector (4) is detachably inserted into the mounting hole in the base and connected to the addressing chip (2); The telescopic column (5) has one end set on the connector (4) and the other end away from the connector (4) has a telescopic groove (6); The copper needle body (7) is slidably inserted into the telescopic groove (6) at one end and connected to the bottom wall of the telescopic groove (6) through an elastic element; A limiting component is installed on one end of the copper needle body (7) that passes through the telescopic groove (6), and the limiting component slides within the telescopic groove (6).

7. An addressable modular comb-shaped brain electrode according to claim 5, characterized in that: The limiting component includes a limiting block (9) that is slidably disposed on one end of the copper needle body (7) that passes through the telescopic groove (6). The limiting block (9) slides along the length direction of the copper needle body (7) on the groove wall of the telescopic groove (6).

8. An addressable modular comb-shaped brain electrode according to claim 7, characterized in that: The elastic element includes a limiting spring (8) that passes through the telescopic groove (6) along the length of the copper needle body (7). The two ends of the limiting spring (8) are respectively connected to the bottom wall of the telescopic groove (6) and one end of the copper needle body (7).

9. An addressable modular comb-shaped brain electrode according to claim 7, characterized in that: The elastic element includes two magnets disposed in the telescopic groove (6). The two magnets are respectively fixedly disposed on the bottom wall of the telescopic groove (6) and on one end of the copper needle body (7) near the bottom wall of the telescopic groove (6), and the magnetic poles of the two magnets are the same at adjacent ends.

Images