Electroencephalogram signal monitoring device

Abstract

The utility model provides an electroencephalogram signal monitoring device. The electroencephalogram signal monitoring device comprises a plurality of electrodes, a plurality of lead wires in one-to-one correspondence with the plurality of electrodes, and signal acquisition equipment, one end of each lead wire is connected with the corresponding electrode, and the other end of each lead wire is connected with signal acquisition equipment; the signal acquisition device comprises a built-in wireless communication module, and the wireless communication module is in wireless connection with an external signal processing device. According to the embodiment of the invention, the portability and comfort of electroencephalogram signal monitoring and the quality of the collected electroencephalogram signals can be improved in a wireless data transmission mode, so that the electroencephalogram signal monitoring method and device are suitable for various application scenes.

Description

Technical Field

[0001] The present disclosure relates to the technical field of medical devices, and in particular to an electroencephalogram (EEG) signal monitoring device. Background Art

[0002] Traditional electroencephalogram (EEG) electrodes are made of metal or conductive materials and need to be pasted or fixed on the scalp for signal acquisition. They are also connected to external amplifiers or data acquisition systems via wires. This wired connection not only limits the range of motion of patients or subjects, but may also cause discomfort and interfere with signal acquisition. In addition, in long-term monitoring or high-mobility application scenarios, the comfort, convenience and signal stability of traditional electrodes are also challenging, which brings certain troubles to clinical diagnosis and neuroscience research.

[0003] Therefore, there is an urgent need for an EEG signal monitoring device that can improve portability, comfort and signal quality. Utility Model Content

[0004] In view of this, the present disclosure proposes an electroencephalogram signal monitoring device to solve the problems of reduced comfort and low signal quality due to wired connection in the related art.

[0005] The first embodiment of the present disclosure provides an electroencephalogram signal monitoring device:

[0006] The device comprises a plurality of electrodes, a plurality of lead wires corresponding one-to-one to the plurality of electrodes, and a signal acquisition device;

[0007] One end of the lead wire is connected to the corresponding electrode, and the other end of the lead wire is connected to the signal acquisition device;

[0008] The signal acquisition device includes a built-in wireless communication module, and the wireless communication module is wirelessly connected to an external signal processing device.

[0009] The disclosed embodiment establishes a wireless connection between each electrode and an external signal processing device through a wireless communication module, which can realize wireless data collection and transmission of EEG signals, allowing patients or users to move freely without being bound by cables. Wireless acquisition improves the flexibility of signal acquisition, and users can perform daily activities or specific tasks in a more natural state, thereby obtaining more realistic and accurate EEG data; and the wireless acquisition function not only facilitates remote monitoring and real-time data transmission, but also helps to reduce the physical burden of the device on the user, and improves the comfort of long-term wear. In addition, the wireless system is easy to integrate with existing medical monitoring equipment or mobile devices, providing users with more usage scenarios and possibilities.

[0010] In the embodiment of the present disclosure, the EEG signal monitoring device also includes a multi-layer structure, which includes a conductive layer, a circuit layer, an adhesive layer and a support layer.

[0011] In the disclosed embodiment, the conductive layer is a solid conductive gel.

[0012] In the disclosed embodiment, the adhesive layer is a flexible polyurethane base material.

[0013] In the disclosed embodiment, the support layer is a polyolefin polymer release film.

[0014] In the embodiments of the present disclosure, the conductive layer is set as a solid conductive gel, so that the conductivity in contact with the skin can be enhanced; the adhesive layer is set as a flexible polyurethane base material and an adhesive is coated on its surface to ensure that it fits the human body, thereby ensuring the stability of the electrode; and the supporting layer is set as a polyolefin polymer release film, so that each electrode can be provided with morphological support and isolated from external pollution.

[0015] In the embodiment of the present disclosure, the EEG signal monitoring device also includes an interface connector; one end of the interface connector is used to connect the multiple electrodes, and the other end of the interface connector is used to connect the signal acquisition device.

[0016] In the disclosed embodiment, the interface connector is a contact-type spring pin interface.

[0017] The disclosed embodiment provides a fast, reliable and easy-to-operate connection solution by connecting the electrodes using a spring pin interface. The spring pin interface ensures a stable electrical connection with the host through a spring mechanism, which not only improves the reliability of the connection, but also makes the installation and removal of the electrode faster and more convenient. Compared with traditional jacks or other fixing methods, the spring pin connection method greatly improves the user experience and reduces the interference and inconvenience caused by cables or poor connections. And each electrode is directly coupled to the signal acquisition device through the spring pin interface, and supports wireless data acquisition. This innovation effectively solves the limitations of wired connections, such as restricted activities, cable wear and electromagnetic interference. Wireless acquisition greatly enhances the mobility and comfort of patients, allowing electrodes to be more widely used in long-term monitoring, home health monitoring and mobile scenarios. In addition, wireless acquisition also facilitates remote monitoring and data transmission, providing more convenience for clinical and research.

[0018] In an embodiment of the present disclosure, the plurality of electrodes are placed in the prefrontal region.

[0019] In the embodiment of the present disclosure, by placing multiple electrodes in the frontal lobe area, EEG signals closely related to human emotions, attention, decision-making and other cognitive functions can be collected. In addition, multiple electrodes can be placed in the corresponding area according to the requirements of specific application scenarios to collect corresponding EEG signals.

[0020] In the embodiment of the present disclosure, the electrode is any one of a patch electrode, a needle electrode and a dry electrode.

[0021] In the disclosed embodiments, the corresponding type of electrode can be selected according to the specific application scenario. For example, in the application scenario of long-term monitoring, a patch electrode can be selected. The patch electrode is a flat electrode, usually made of metal or conductive film, which can be easily attached to the surface of the scalp. The patch electrode is easy to place and use, and is suitable for long-term monitoring. In the application scenario where deep-level signal monitoring is required, a needle electrode can be selected. The needle electrode is a slender electrode, which is usually used in situations where deeper signal monitoring is required, such as deep electroencephalography (DBS) and other applications. The needle electrode can penetrate deeper into the scalp surface and directly contact the brain tissue, with higher signal sensitivity and spatial resolution. In the EEG signal monitoring scenario that requires convenience, fast setup and comfort (such as mobile brain-computer interface BCI), a dry electrode can be selected. The dry electrode is a type of electrode that does not require the use of electrode gel or conductive gel. They usually have a special surface coating or design that can directly contact the skin and maintain stable signal acquisition. Dry electrodes are easy to operate and do not require the preparation of additional electrode gel, reducing the cost of use and preparation time.

[0022] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will become apparent from the following description or be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limitations of the present disclosure. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings.

[0024] In the attached picture:

[0025] Figure 1 A schematic diagram of the structure of an electroencephalogram signal monitoring device provided by an embodiment of the present disclosure is shown;

[0026] Figure 2 A schematic diagram showing the number of electrodes and the location of each electrode in an embodiment of the present disclosure is shown;

[0027] Figure 3A schematic diagram showing the number of electrodes and the location of each electrode in an embodiment of the present disclosure is shown;

[0028] Figure 4 A schematic diagram showing the number of electrodes and the location of each electrode in an embodiment of the present disclosure is shown;

[0029] Figure 5 A schematic diagram showing the arrangement positions of various electrodes in an embodiment of the present disclosure is shown;

[0030] Figure 6 A schematic diagram of a multi-layer structure of an electroencephalogram signal monitoring device in an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0031] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0032] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present disclosure should have the common meanings understood by those skilled in the art to which the present disclosure belongs.

[0033] The following describes the technical scenarios involved in the embodiments of the present disclosure.

[0034] Although existing electroencephalogram (EEG) electrodes are widely used in clinical and research settings, they are often limited by wired connections, comfort, convenience, and signal stability. In particular, the limitations of traditional electrodes are particularly prominent in scenarios where long-term monitoring or high-mobility monitoring is required. Therefore, the development of a new type of EEG electrode to improve portability, comfort, and signal quality has become an urgent need in this field.

[0035] Based on this, the present disclosure proposes an EEG signal monitoring device that can be used in scenarios where long-term detection or high-mobility detection is required, and can achieve the purpose of improving portability, comfort and signal quality.

[0036] In this embodiment, a device for monitoring EEG signals is provided. Figure 1 is a structural diagram of an electroencephalogram signal monitoring device according to an embodiment of the present disclosure, such as Figure 1 As shown, the device includes: a plurality of electrodes 101, a plurality of lead wires 102 corresponding to the plurality of electrodes one by one, and a signal acquisition device 103;

[0037] Among them, one end of the lead wire 102 is connected to the corresponding electrode 101, and the other end of the lead wire 102 is connected to the signal acquisition device 103; the signal acquisition device 101 includes a built-in wireless communication module 104, and the wireless communication module 104 is wirelessly connected to an external signal processing device.

[0038] In some embodiments, the electrode can be any one of a patch electrode, a needle electrode, and a dry electrode, which is used to contact the surface of the scalp to measure EEG signals. Different types of electrodes can be used according to different application scenarios. For example, in the application scenario of long-term monitoring, a patch electrode can be selected. The patch electrode is a flat electrode, usually made of metal or conductive film, which can be easily attached to the surface of the scalp. The patch electrode is easy to place and use, and is suitable for long-term monitoring. In the application scenario where deep-level signal monitoring is required, a needle electrode can be selected. The needle electrode is a slender electrode, which is usually used in situations where deeper signal monitoring is required, such as deep electroencephalography (DBS) and other applications. The needle electrode can penetrate the scalp surface deeper and directly contact the brain tissue, with higher signal sensitivity and spatial resolution. In the EEG signal monitoring scenario that requires convenience, fast setup and comfort (such as mobile brain-computer interface BCI), a dry electrode can be selected. Dry electrodes are a type of electrode that does not require the use of electrode gel or conductive gel. They usually have a special surface coating or design that can directly contact the skin and maintain stable signal acquisition. Dry electrodes are easy to operate and do not require the preparation of additional electrode gel, reducing usage costs and preparation time.

[0039] In some embodiments, Figure 2 , Figure 3 as well as Figure 4 As shown, the number of electrodes and the location of each electrode can be set according to the specific application scenario. For example, the frontal lobe area is closely related to human emotions, attention, decision-making and other cognitive functions. In order to monitor human emotions, attention, decision-making and other cognitive functions, the frontal lobe area can be selected as the location of the five electrodes. Selecting this area as a monitoring point can effectively capture related EEG activities. The following is a specific example for illustration:

[0040] When conducting an electroencephalogram (EEG) experiment, the subjects were studying the changes in emotions when watching video advertisements.

[0041] In this case, the number and position of electrodes can be set as follows:

[0042] Determine the number of electrodes: Depending on the experimental needs and research objectives, 5 EEG electrodes can be used for monitoring to cover the prefrontal area of ​​the brain.

[0043] Setting electrode positions: According to the international 10-20 system, the five electrodes were set at specific locations in the prefrontal region, e.g. Figure 5 The positions "F7", "Fp1", "Fpz", "Fp2" and "F8" in the .

[0044] Fine-tuning: To ensure that emotion-related EEG activity is captured, some fine-tuning of the electrode positions is done.

[0045] Determine the location of the reference electrode and ground electrode: In addition to the main monitoring electrodes, the location of the reference electrode and ground electrode also needs to be determined to ensure the quality and stability of the signal.

[0046] The electrodes disclosed herein use 5 points in the frontal lobe of the 10-20 international standard lead system. This design not only ensures compatibility with existing EEG equipment and data standardization, but also optimizes signal quality and coverage through selected points. In addition, compared with traditional multi-point electrodes, the 5-point design disclosed herein greatly simplifies the layout of the electrodes, improves the convenience and comfort of wearing, and retains the key functional monitoring capabilities of the frontal lobe area.

[0047] In some embodiments, the lead wires used to connect the electrodes with the signal acquisition device and transmit the EEG signals collected by each electrode are usually made of materials with good conductivity, wear resistance, and good conductive properties, such as copper wire or silver wire, to ensure accurate transmission of the signal.

[0048] In some embodiments, the signal acquisition device in the EEG signal monitoring device has a built-in wireless communication module, which enables the signal acquisition device to be wirelessly connected to an external signal processing device. The wireless communication module can use Bluetooth, Wi-Fi or other wireless communication technologies to achieve data transmission with the external signal processing device. The external signal processing device is a device that is wirelessly connected to the signal acquisition device. The device is used to receive, decode and analyze the EEG signals transmitted from the signal acquisition device. The external signal processing device has powerful signal processing capabilities and storage capacity.

[0049] In some embodiments, the EEG signal monitoring device further comprises a multi-layer structure, wherein the multi-layer structure comprises a conductive layer, a circuit layer, an adhesive layer and a support layer. Each layer is sequentially arranged in the thickness direction to ensure conductivity, signal transmission, ease of use and protection.

[0050] Wherein, the conductive layer is made of solid conductive gel, such as Figure 6 The "6" in the figure is mainly used to enhance the conductivity of the contact with the skin; the circuit layer uses conductive silver paste, such as Figure 6The "4" in the embodiment is mainly prepared by a flexible printed circuit process to ensure the effective transmission of EEG signals; the adhesive layer is made of a flexible polyurethane base material, such as Figure 6 The "3" in the figure has an adhesive on its surface, which is easy to fit the human body to ensure the stability of the electrode; the support layer is made of a polyolefin polymer release film, such as Figure 6 The “2” in the figure provides morphological support for each electrode and isolates it from external pollution.

[0051] In some embodiments, the EEG signal monitoring device further includes an interface connector (eg Figure 6 "1" in the figure); one end of the interface connector is used to connect the multiple electrodes, and the other end of the interface connector is used to connect the signal acquisition device.

[0052] Specifically, the interface connector can connect the EEG electrodes to the signal acquisition device, thereby ensuring the effective transmission of the signal; the interface connector transmits the EEG signals collected by the electrodes to the acquisition device through a combination of a plug and a socket, and these signals can be amplified, filtered and digitized for subsequent analysis and processing;

[0053] Preferably, the interface connector also includes control lines that can optimize signal acquisition and processing by controlling acquisition parameters such as sampling rate, amplification gain and filter settings.

[0054] Preferably, the design and material selection of the interface connector can ensure a stable connection between the electrode and the device to avoid signal interference and distortion.

[0055] In some embodiments, the interface connector is a contact-type spring pin interface.

[0056] Specifically, the contact pin interface is composed of many small metal springs that can bend during insertion and return to their original shape after insertion, thereby generating pressure and a stable electrical connection. This design can ensure good contact performance, reduce contact resistance, and improve the reliability and stability of signal transmission; in EEG signal monitoring devices, the contact pin interface is usually used to connect scalp electrodes to ensure a reliable connection between the scalp electrodes and the acquisition device in order to accurately collect EEG signals. This connection method can reduce signal interference and distortion and improve the quality of data acquisition, which is particularly important for experiments or clinical applications that require long-term monitoring of EEG activity.

[0057] The electrode disclosed herein is connected to the signal acquisition device using a spring pin interface, which is highly reliable and easy to operate. The spring pin mechanism provides a certain amount of pressure at the contact point, ensuring a stable electrical connection and maintaining continuous signal transmission even when the user moves or is slightly displaced.

[0058] The electrodes disclosed herein are connected using a spring pin interface, providing a fast, reliable and easy-to-operate connection solution. The spring pin interface ensures a stable electrical connection with the host through a spring mechanism, which not only improves the reliability of the connection, but also makes the installation and removal of the electrode faster and more convenient. Compared with traditional jacks or other fixing methods, the spring pin connection method greatly improves the user experience and reduces the interference and inconvenience caused by cables or poor connections.

[0059] In some embodiments, multiple electrodes are coupled to an external signal processing device through a pin interface for wireless data acquisition. This innovation effectively solves the limitations of wired connections, such as limited movement, cable wear, and electromagnetic interference. Wireless acquisition greatly enhances the mobility and comfort of patients, allowing electrodes to be more widely used in long-term monitoring, home health monitoring, and mobile scenarios. In addition, wireless acquisition also facilitates remote monitoring and data transmission, providing more convenience for clinical and research.

[0060] The wireless data acquisition and transmission in the embodiments of the present disclosure are implemented based on the pin interface and wireless technology. The electrodes of the present disclosure support wireless data acquisition, allowing patients or users to move freely without being restrained by cables. Wireless acquisition improves the flexibility of signal acquisition, and users can perform daily activities or specific tasks in a more natural state, thereby obtaining more realistic and accurate EEG data. The wireless acquisition function not only facilitates remote monitoring and real-time data transmission, but also helps to reduce the physical burden of the device on the user and improves the comfort of long-term wear. In addition, the wireless system is easy to integrate with existing medical monitoring equipment or mobile devices, providing users with more usage scenarios and possibilities.

[0061] Through the above-mentioned structure and technical implementation, the non-invasive multi-signal monitoring frontal electroencephalogram (EEG) electrode disclosed in the present invention significantly optimizes the performance of traditional EEG electrodes, and provides an easy-to-use, comfortable and efficient EEG signal acquisition solution. Through the careful design of electrode points, the innovative application of spring pin connection methods and the integration of wireless acquisition technology, the present invention has broad application prospects in the field of EEG monitoring, and is particularly suitable for long-term monitoring, mobile monitoring and home medical care.

[0062] It should be noted that:

[0063] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present disclosure can be practiced without these specific details. In some instances, well-known structures and technologies are not shown in detail so as not to obscure the understanding of this description.

[0064] Similarly, it should be understood that in order to streamline the present disclosure and aid in understanding one or more of the various inventive aspects, in the above description of the exemplary embodiments of the present disclosure, the various features of the present disclosure are sometimes grouped together into a single embodiment, figure, or description thereof. However, the disclosed method should not be interpreted as reflecting the following schematic diagram: the claimed disclosure requires more features than the features explicitly recited in each claim. More specifically, as reflected in the claims below, the inventive aspects lie in less than all the features of the single embodiment disclosed above. Therefore, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, with each claim itself serving as a separate embodiment of the present disclosure.

[0065] In addition, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of this disclosure and form different embodiments. For example, in the claims below, any one of the claimed embodiments may be used in any combination.

[0066] The above is only a preferred specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An electroencephalogram signal monitoring device, characterized in that: The device comprises a plurality of electrodes, a plurality of lead wires corresponding one-to-one to the plurality of electrodes, and a signal acquisition device; One end of the lead wire is connected to the corresponding electrode, and the other end of the lead wire is connected to the signal acquisition device; The signal acquisition device includes a built-in wireless communication module, and the wireless communication module is wirelessly connected to an external signal processing device.

2. The electroencephalogram signal monitoring device according to claim 1, characterized in that: The EEG signal monitoring device also includes a multi-layer structure, which includes a conductive layer, a circuit layer, an adhesive layer and a support layer.

3. The electroencephalogram signal monitoring device according to claim 2, characterized in that: The conductive layer is a solid conductive gel.

4. The electroencephalogram signal monitoring device according to claim 2 or 3, characterized in that: The adhesive layer is a flexible polyurethane base material.

5. The electroencephalogram signal monitoring device according to claim 2 or 3, characterized in that: The support layer is a polyolefin polymer release film.

6. The electroencephalogram signal monitoring device according to claim 1 or 2, characterized in that: The EEG signal monitoring device also includes an interface connector; One end of the interface connector is used to connect the multiple electrodes, and the other end of the interface connector is used to connect the signal acquisition device.

7. The electroencephalogram signal monitoring device according to claim 6, characterized in that: The interface connector is a contact-type spring-pin interface.

8. The electroencephalogram signal monitoring device according to claim 1 or 2, characterized in that: The plurality of electrodes are positioned in the prefrontal region.

9. The electroencephalogram signal monitoring device according to claim 1 or 2, characterized in that: The electrode is any one of a patch electrode, a needle electrode and a dry electrode.

Images