Auxiliary device for electroencephalogram electrode placement practice
By designing a feedback mechanism for the movement of the human model head and headgear, the problem of accuracy in EEG electrode placement practice for medical students was solved, thereby improving practical skills and electrode placement accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-17
AI Technical Summary
Medical students lack practical experience when practicing EEG electrode placement, resulting in low accuracy in electrode placement.
An auxiliary device was designed, comprising a human model head and a rigid headgear that can be fitted onto it. The headgear is equipped with movable parts that can be lowered and automatically raised, as well as electrode practice plates. The movement of the movable parts in conjunction with the headgear simulates actual operation and provides placement feedback.
It improves the practical skills and accuracy of EEG electrode placement, and through the feedback mechanism, it allows trainees to continuously try and make mistakes, thereby improving the training effect.
Smart Images
Figure CN224005577U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical teaching aids technology, specifically to an auxiliary device for practicing the placement of electroencephalogram (EEG) electrodes. Background Technology
[0002] Medical students need to practice placing EEG electrodes during their studies, but currently, this practice is usually based on the placement of the electrodes in the brain (standard international 10-20 electrode system, such as...). Figure 4 The left, right, and top views (shown) depict the positions of EEG electrodes and the corresponding electrode models placed at those positions. However, the lack of practical operation results in low accuracy of electrode placement during actual application. There is an urgent need for an auxiliary device for practicing EEG electrode placement to improve the practical ability to place EEG electrodes. Utility Model Content
[0003] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide an auxiliary device for practicing EEG electrode placement, which can simulate the actual operation of EEG electrode placement, improve the actual operation ability, and improve the accuracy of electrode placement.
[0004] The technical solution adopted by this utility model is as follows: an auxiliary device for EEG electrode placement practice, including a human model head, a rigid headgear that can be fitted onto the human model head, and multiple reusable electrode practice pieces. The outer surface of the human model head is provided with multiple movable parts that can be lowered and automatically raised at the intended placement location of the EEG electrodes. There is a gap between the outer surface of the human model head and the inner surface of the headgear. The human model head is used to support the headgear. The movable parts penetrate the headgear. The outer edge of the movable parts fits against the headgear. The outer surface of the movable parts and the outer surface of the headgear are located on the same curved surface. The outer surface of the headgear is provided with multiple rows and columns of stripes. The outer edge of the movable parts and the stripes on the headgear cooperate to form a grid pattern. The outer surface of the headgear and the outer surface of the movable parts together form an enlarged version of the outer surface of the human model head. The electrode practice pieces can be adhered to the outer surface of the headgear and the outer surface of the movable parts.
[0005] Explanation: The outer edge of the moving part fits into the headgear where it passes through the stripes, that is, it coincides with the position of the corresponding stripes. The outer surface color of the headgear in this utility model is gray.
[0006] The principle of the technical solution:
[0007] The moving part runs through the headgear, which is also a whole. The moving part can be identified by its outer edge. The stripes arranged in rows and columns can conceal the outer edge of the moving part. In addition, the gray color of the outer surface of the headgear can further conceal the outer edge of the moving part, making the outer surface of the moving part and the outer surface of the headgear blend into one.
[0008] During practice, the practitioner places the electrode practice pads in what they believe to be the correct position, allowing them to adhere to the outer surface of the headgear or the outer surface of the moving part. This process is repeated, placing multiple electrode practice pads on the outer surface of the headgear or the moving part, and then pressing down on the pads. When a corresponding electrode practice pad moves downwards, it indicates that the pad is correctly positioned on the moving part. Releasing the corresponding pad causes the moving part to automatically rise back to its initial position. If the corresponding electrode practice pads are in different positions, it indicates that the pads are incorrectly positioned on the outer surface of the headgear.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0010] This invention provides support for the human body model head, including the headgear and the movable component. The movable component can descend and rise automatically. The outer surface of the movable component and the outer surface of the headgear are located on the same curved surface. The outer surfaces of the headgear and the movable component cooperate to form an enlarged version of the outer surface of the human body model head, simulating the actual operation of EEG electrode placement. This improves the practical operation ability of EEG electrode placement. Moreover, compared to directly marking the position to be placed, this invention allows practitioners to continuously try and fail during the placement process, resulting in better practice effects and improved accuracy of electrode placement.
[0011] In a preferred embodiment of this utility model, the outer surface of the human body model head is provided with a plurality of support columns at a location away from the intended placement of the electrodes, and the support columns are in contact with the inner surface of the head cover.
[0012] Beneficial effects: The support columns provide support for the headgear, allowing for a stable connection between the headgear and the mannequin head.
[0013] In a preferred embodiment of this utility model, the upper surface of the support column is provided with an adhesive part, which can fit against the inner surface of the headgear to limit the position of the headgear.
[0014] Beneficial effects: The adhesive part can increase the connection stability between the support column and the headgear, thereby increasing the connection stability between the headgear and the mannequin head.
[0015] In a preferred embodiment of this utility model, the headgear includes a left connecting part opposite to the left side of the human model head and a right connecting part opposite to the right side of the human model head. The left connecting part and the right connecting part are fitted together and are magnetically attracted at the fitting point.
[0016] Beneficial effects: It facilitates the replacement of the headgear and the removal of the headgear to expose the moving parts, thereby facilitating the maintenance of the moving parts.
[0017] In a preferred embodiment of this utility model, the movable component includes a spring and a movable plate. One end of the spring is connected to the human model head, and the other end is connected to the movable plate. The outer surface of the movable plate and the outer surface of the headgear are located on the same curved surface, and the outer surface of the movable plate and the outer surface of the headgear together form an enlarged scale outer surface of the human model head.
[0018] Beneficial effects: The spring is low-cost and can move the movable plate. Under the action of external force, the spring can drive the movable plate to descend, allowing the trainee to verify whether the electrode practice pieces are placed correctly.
[0019] In a preferred embodiment of this utility model, the movable plate is provided with a connecting block, the upper surface of the movable plate and the connecting block are magnetically attracted, and the electrode training sheet can be pasted on the connecting block.
[0020] Explanation: During practice, users need to practice both the placement of electrodes and the placement of the corresponding electrode type. The movable plate's location is concealed to facilitate electrode placement practice. Here, a connecting block is designed to highlight the movable plate's position, making it easier to practice placing the corresponding electrode type. The connecting blocks for different movable plates have corresponding colors on their upper surfaces. The side of the electrode practice piece that adheres to the connecting block is also colored, and the side of the electrode practice piece away from the connecting block is marked with its model number.
[0021] Beneficial effects: The outer surface of the movable plate and the outer surface of the headgear are on the same curved surface, and the stripes arranged in rows and columns can conceal the position of the movable plate, while the connecting blocks can highlight the position of the movable plate, that is, mark the intended electrode placement location. In this solution, when the color of the electrode connecting piece opposite the connecting plate is the same as the color of the connecting plate, it indicates that the corresponding model of electrode practice piece is correctly placed. That is, after mastering the placement of the electrodes, practice placing different models of electrodes, achieving a gradual practice of EEG electrode placement. Attached Figure Description
[0022] Figure 1 This is a partial structural schematic diagram of the auxiliary device for EEG electrode placement practice according to this utility model;
[0023] Figure 2 This is a top view of the auxiliary device for EEG electrode placement practice according to this utility model;
[0024] Figure 3 This is a schematic diagram of the structure of the headgear used as an auxiliary device for EEG electrode placement practice according to this utility model;
[0025] Figure 4 This is a diagram showing the electrode placement positions for the standard international 10-20 system. Detailed Implementation
[0026] Typical embodiments embodying the features and advantages of this utility model will be specifically described in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.
[0027] In the description of this application, the terms "first," "second," "side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0029] The attached diagram includes the following labels: 1. Human model head; 2. Headgear; 3. Support column; 4. Spring; 5. Movable plate.
[0030] Explanation: In this embodiment, the position of the movable component in the human body model head 1 is according to... Figure 4 The proposed placement of EEG electrodes is underway. Figure 4 This is a standard diagram for EEG electrode placement.
[0031] Assistive devices for practicing EEG electrode placement, such as Figure 1 As shown, it includes a human model head 1, a rigid headgear 2 that can be fitted onto the human model head 1, and multiple reusable electrode practice pads.
[0032] In this embodiment, the human body model head 1 is made of rubber.
[0033] The outer surface of the human model head 1 is provided with multiple movable components that can descend and automatically ascend at the designated locations for placing EEG electrodes. The movable components include springs 4 and movable plates 5. One end of spring 4 is connected to the human model head 1, and the other end is connected to the movable plate 5. The movable plate 5 passes through the head cover 2, and the outer edge of the movable plate 5 is in contact with the head cover 2. The outer surface of the movable plate 5 and the outer surface of the head cover 2 are located on the same curved surface. The outer surface of the movable plate 5 and the outer surface of the head cover 2 together form the magnified outer surface of the human model head 1. A connecting block is provided on the movable plate 5, and the upper surface of the movable plate 5 and the connecting block are magnetically attracted to each other.
[0034] There is a gap between the outer surface of the human model head 1 and the inner surface of the head cover 2. The outer surface of the human model head 1 is provided with multiple support columns 3 at a location away from the intended placement of the electrodes. The support columns 3 are attached to the inner surface of the head cover 2. The upper surface of the support columns 3 is provided with an adhesive part, which can be attached to the inner surface of the head cover 2 to limit the position of the head cover 2.
[0035] In this embodiment, different connecting blocks are provided with different colors, and the surfaces of different types of electrode practice pieces that are attached to the connecting blocks are also provided with corresponding colors. The electrode practice pieces can be glued to the outer surface of the headgear 2, the outer surface of the moving plate 5, and the connecting blocks. The surfaces of the electrode practice pieces that are attached to the connecting blocks can be provided with Blu-Tack (pressure-sensitive adhesive material that can be reused multiple times and has adhesive properties) or polymer hydrophilic gel. The adhesive part can be Blu-Tack or polymer hydrophilic gel.
[0036] like Figure 3 As shown, the headgear 2 includes a left connecting portion opposite to the left side of the human model head 1 and a right connecting portion opposite to the right side of the human model head 1. The left and right connecting portions fit together, and the fitting points are magnetically attracted. In this embodiment, the headgear 2 can also be fixedly connected to the human model head 1, such as... Figure 2 As shown, the outer surface of the headgear 2 has multiple rows and columns of stripes, and the moving plate 5 and the stripes on the headgear 2 work together to form a grid pattern.
[0037] In this embodiment, when practicing the placement of EEG electrodes, the trainee attaches the electrode practice pads to the outer surface of the headgear 2 and the outer surface of the movable part, which together form the magnified human head model 1. After the trainee has placed multiple electrode practice pads, the trainee presses multiple electrode practice pads in sequence. When the pressed electrode practice pads descend, it indicates that the electrode practice pads are placed on the movable plate 5, indicating that the electrode practice pads are placed correctly. When the electrode practice pads are released, the movable plate 5 returns to its initial position under the elastic force of the spring. When the pressed electrode practice pads remain stationary, it indicates that the electrode practice pads are placed on the headgear, indicating that the electrode practice pads are placed incorrectly.
[0038] Connect the connecting blocks with different colors to the corresponding moving plate 5 magnetically. Then connect the electrode practice pieces of different models to the corresponding connecting blocks. After the trainee has placed multiple electrode practice pieces of different models, remove the electrode practice pieces one by one. When the color of the bottom surface of the removed electrode practice piece is the same as the color exposed on the corresponding connecting block, it means that the electrode practice piece placed at the intended position of the EEG electrode is of the correct model.
[0039] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. An aid for electroencephalography electrode placement practice comprising a mannequin head, characterised in that: Also included are a hard head cover that can be put on a mannequin head and a plurality of reusable electrode practice pieces, wherein the outer surface of the mannequin head is provided with a plurality of movable members that can be lowered and automatically raised at the intended placement of the electroencephalogram electrode, there is a gap between the outer surface of the mannequin head and the inner surface of the head cover, the mannequin head is used to support the head cover, the movable members penetrate the head cover, the outer edge of the movable members is in close contact with the head cover, the outer surface of the movable members is on the same curved surface as the outer surface of the head cover, the outer surface of the head cover is provided with a plurality of rows of stripes, the outer edge of the movable members and the stripes on the head cover cooperate to form a grid, the outer surface of the head cover and the outer surface of the movable members together form an enlarged mannequin head, and the electrode practice pieces can be adhered to the outer surface of the head cover and the outer surface of the movable members.
2. The aid for electroencephalogram electrode placement practice according to claim 1, characterized in that: The outer surface of the mannequin head is provided with a plurality of support columns away from the intended placement of the electrode, and the upper end of the support column is in close contact with the inner surface of the head cover.
3. The aid for electroencephalogram electrode placement practice according to claim 2, characterized in that: The upper surface of the support column is provided with an adhesive part that can be in close contact with the inner surface of the head cover to limit the head cover.
4. The aid for electroencephalogram electrode placement practice according to claim 1, characterized in that: The head cover includes a left connecting part opposite to the left brain of the mannequin head and a right connecting part opposite to the right brain of the mannequin head, the left connecting part and the right connecting part are in close contact, and the contact part is magnetically attracted.
5. The aid for electroencephalogram electrode placement practice according to claim 1, wherein: The movable member includes a spring and a moving plate, one end of the spring is connected with the mannequin head, the other end is connected with the moving plate, the outer surface of the moving plate is on the same curved surface as the outer surface of the head cover, and the outer surface of the moving plate and the outer surface of the head cover together form an enlarged mannequin head.
6. The aid for electroencephalogram electrode placement practice according to claim 5, characterized in that: The moving plate is provided with a connecting block, the upper surface of the moving plate and the connecting block are magnetically attracted, and the electrode practice pieces can be pasted on the connecting block.