Electroencephalic device positioning device

Abstract

The utility model provides a kind of electroencephalograph positioning device, including positioning fixture and probe mechanism, and the profiling groove that positioning fixture is equipped with with the electroencephalograph to be tested limit cooperation, probe mechanism is movably installed in positioning fixture and is matched with the electroencephalograph to be tested placed in profiling groove.The utility model provides a kind of positioning device, which can realize free disassembly head-mounted test, operation is extremely simple, can effectively protect equipment and test consistency is high, by the design of partition, split, plug and mechanical locking, greatly reduce test difficulty and fixture manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology, and in particular to a positioning device for electroencephalogram (EEG) devices. Background Technology

[0002] Brain-computer interface devices must undergo electrical performance testing during manufacturing, repair, or periodic calibration.

[0003] Currently, the electrical performance testing of EEG acquisition devices is generally achieved through test probes. Specifically, the test probe is manually inserted into the electrode unit of the EEG acquisition device, bringing it into contact with the electrode pads. After applying electricity, the conductivity and other electrical properties of the electrode pads can be tested. This existing method has the following drawbacks: 1. The test is performed manually using test probes one by one, which results in uneven force control and is time-consuming.

[0004] 2. Low alignment success rate and easy equipment damage: Manual operation can easily cause the probe to hit the hole wall of the electrode unit, resulting in physical damage to the probe or electrode unit. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a brain electrical device positioning device for assisting in the electrical performance testing of brain electrical devices, which can at least solve one of the problems in the prior art.

[0006] To achieve the above and other related objectives, this utility model provides a positioning device for an EEG device, including a positioning fixture and a probe mechanism. The positioning fixture has a contoured groove that fits into the EEG device to be tested. The probe mechanism is movably mounted on the positioning fixture and cooperates with the EEG device to be tested placed in the contoured groove.

[0007] In one embodiment of the present invention, the EEG device to be tested includes a collector host, a contoured groove that is limited and matched with the collector host, the collector host includes a body and an electrode unit installed on the body, the electrode unit includes an electrode housing and an electrode plate disposed in the electrode housing, the electrode housing has a through hole, and the probe mechanism includes at least a probe that can be inserted into the through hole and abuts against the electrode plate.

[0008] In one embodiment of the present invention, the EEG device to be tested further includes a headband, which is connected to the main unit of the data acquisition unit. The positioning fixture has an avoidance groove that communicates with the contour groove and cooperates with the headband.

[0009] In one embodiment of the present invention, the positioning fixture has an avoidance notch that communicates with the avoidance groove and is used to prevent the positioning fixture from blocking the headgear.

[0010] In one embodiment of the present invention, the probe mechanism further includes a movable block and a locking member. The positioning fixture has an installation cavity that cooperates with the movable block for positioning. The locking member is installed on the positioning fixture and cooperates with the movable block for positioning. The movable block is movably installed on the positioning fixture and its position is locked by the locking member. The probe is installed on the movable block.

[0011] In one embodiment of the present invention, the probe mechanism further includes a limiting part, which is installed at the bottom of the movable block and engages with the positioning fixture for limiting.

[0012] In one embodiment of the present invention, the positioning fixture is provided with a limiting groove that cooperates with the limiting part.

[0013] In one embodiment of this utility model, the probe mechanism further includes an anti-detachment part, which is installed at the bottom of the limiting part and engages with the positioning fixture for limiting. Therefore, the anti-detachment part can effectively prevent the probe mechanism from completely detaching from the positioning fixture when not in operation.

[0014] In one embodiment of the present invention, there are multiple probe mechanisms. The body includes a central body and side bodies disposed on both sides of the central body. The probe mechanism includes a first probe mechanism that cooperates with the electrode unit disposed on the central body and a second probe mechanism that cooperates with the electrode unit disposed on the side body. The second probe mechanism is located on both sides of the first probe mechanism. The plane where the movable block of the first probe mechanism is located and the plane where the movable block of the second probe mechanism is located are not parallel.

[0015] In one embodiment of this utility model, a hand-held part is provided on the movable block.

[0016] As described above, the EEG device positioning device of this utility model is a novel positioning device specifically designed for performance testing of brain-computer interfaces. The core of this device lies in its ability to achieve three major functions: "breaking down the whole into parts, step-by-step operation, and mechanical interlocking." Breaking down the whole into parts (partitioning): The probe mechanism includes multiple active blocks, each of which is equipped with several probes, which can break down the complex problem of "simultaneously aligning multiple points" into multiple simple sub-problems. Step-by-step operation (plug-and-play): Allows operators to install modules one by one, reducing the attention load and difficulty of operation; Mechanical interlock (rigid positioning and locking): First positioning: The overall contour of the probe mechanism is matched with the mounting cavity on the positioning fixture to achieve macroscopic alignment of the probe and the through hole of the electrode unit ("one cut"). Second locking: Through the locking engagement between the locking element and the moving block, absolute locking is achieved at the microscopic level, eliminating any possibility of springback or loosening and ensuring the stability of the electrical connection.

[0017] This utility model provides a positioning device that enables headband testing without disassembly, is extremely easy to operate, effectively protects equipment, and has high testing consistency. Through the design of partitioning, splitting, plugging and unplugging and mechanical locking, it greatly reduces the testing difficulty and fixture manufacturing cost.

[0018] The positioning device of this utility model has at least the following beneficial effects: 1. Fundamental improvement in operational performance: It achieves an "unrestricted, blind plug-and-play" operating experience, transforming a complex task that requires high technical skills and concentration into a simple task that can be completed by ordinary people, greatly reducing the difficulty of operation and mental burden.

[0019] 2. Enhanced protection for equipment and probes: The combination of mechanical guidance and adaptive spring probes completely avoids hard collisions and scratches, greatly reducing the risk of damage to expensive brain-computer interface equipment and precision test probes during testing, and extending equipment life.

[0020] 3. Excellent test reliability and consistency: The mechanical rigid locking ensures that the contact state (position, pressure) of all probes is highly repeatable and consistent in each test, completely eliminating random errors introduced by human factors, making the test data real, reliable and highly comparable.

[0021] 4. Test efficiency doubled: Test preparation time (equipment clamping and alignment) is reduced from minutes to seconds, which is especially suitable for batch rapid inspection on the production line and regular calibration of large-scale equipment, greatly improving production efficiency and capacity.

[0022] 5. Reduced overall costs: Firstly, low manufacturing costs: The innovative split-type equipment positioning shell structure transforms the machining difficulties of complex internal cavity parts into the routine machining of simple parts, significantly reducing the manufacturing difficulty and cost of the fixture itself; Secondly, low maintenance costs: The modular design allows for the replacement of individual damaged probe modules without scrapping the entire tooling, making maintenance simple and cost-effective.

[0023] 6. Improved product quality: Highly consistent testing ensures the uniformity of product performance, reduces the misjudgment rate caused by testing errors (good products are judged as defective products or defective products are missed in inspection), and improves the reputation of product quality.

[0024] 7. Strategic Value Emerges: Paving the Way for Automated Testing: The fixture has a stable structure and clear operating logic (simple linear insertion and removal actions), making it very easy to integrate into automated equipment, laying a solid foundation for achieving fully automated testing in the future. Attached Figure Description

[0025] Figure 1This is one of the three-dimensional structural diagrams of the positioning device of this utility model in conjunction with the EEG device to be tested; Figure 2 This is the second three-dimensional structural diagram of the positioning device of this utility model in conjunction with the EEG device to be tested; Figure 3 This is a three-dimensional structural diagram of the brainwave device positioning device of this utility model; Figure 4 for Figure 3 A top view schematic diagram of the brainwave device positioning device shown; Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure of the EEG device positioning device along the AA direction; Figure 6 for Figure 3 A three-dimensional structural diagram of the positioning device shown from another angle; Figure 7 for Figure 6 The diagram shows the exploded structure of the positioning device. Figure 8 This is a three-dimensional structural diagram of the main unit of the EEG acquisition device to be tested, which is matched with the positioning device of this utility model.

[0026] Figure 1-8 The reference numerals in the attached diagrams are as follows: A - Positioning device; B - EEG device to be tested; B1 - Data acquisition unit; B2 - Headset; B11 - Body; B11a - Middle body; B11b - Side body; B12 - Electrode unit; B121 - Electrode housing; B121a - Through hole; 1-Positioning fixture; 2-Probe mechanism; 2a-First probe mechanism; 2b-Second probe mechanism; 10-Shaping groove; 11-Front housing; 12-Rear housing; 13-Fastener; 21-Moving block; 22-Locking component; 23-Probe; 24-Limiting part; 25-Anti-fall-off part; 26-Handheld part; 111-Allowing groove; 112-Allowing notch; 113-Limiting groove; 121-Mounting cavity; 211-Locking hole. Detailed Implementation

[0027] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0028] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0029] Please see Figures 1-8 This utility model provides a brainwave device positioning device according to the following embodiments, which belongs to the field of mechanical equipment technology. It can overcome the shortcomings of traditional methods that can only perform electrical performance tests one by one manually, such as high labor costs, low accuracy, and low testing efficiency.

[0030] like Figure 1-8 As shown, this utility model provides one type of EEG device positioning device.

[0031] The EEG device positioning device includes a positioning fixture 1 and a probe mechanism 2. The positioning fixture 1 has a contoured groove 10 that is matched with the EEG device B to be tested. The probe mechanism 2 is movably mounted on the positioning fixture 1 and matches the EEG device B to be tested placed in the contoured groove 10.

[0032] In this embodiment, the EEG device B to be tested includes a collector host B1, and the contoured groove 10 is limited to the collector host B1. The collector host B1 includes a body B11 and an electrode unit B12 installed on the body B11. The electrode unit B12 includes an electrode housing B121 and an electrode sheet disposed in the electrode housing B121. The electrode housing B121 has a through hole B121a. The probe mechanism 2 includes at least a probe 23 that can be inserted into the through hole B121a and abuts against the electrode sheet.

[0033] The through hole B121a is specifically a fiber cotton mounting hole, which is used to install fiber cotton that can absorb and store conductive liquid. The deepest part of the through hole B121a contains an electrode plate. During testing, the fiber cotton needs to be removed from the through hole B121a, and the electrode plate is the electrical contact point during testing.

[0034] Preferably, the through hole B121a of this invention has a diameter of 7mm and a depth of 9mm. If this size of through hole B121a is used with existing methods, there are drawbacks such as difficulty in alignment and insertion, and manual operation is prone to failure and damage to the equipment.

[0035] In this embodiment, the EEG device B to be tested also includes a headpiece B2, which is connected to the data acquisition host B1. The positioning fixture 1 has an avoidance groove 111 that communicates with the contour groove 10 and cooperates with the headpiece B2. The positioning device A of this utility model fully considers the situation where the EEG device B to be tested is connected to the headpiece B2. During testing, there is no need to disassemble the headpiece B2, which greatly saves operation steps and time, and has strong applicability and high testing efficiency.

[0036] In this embodiment, the positioning fixture 1 has a clearance notch 112 that communicates with the clearance groove 111 and is used to prevent the positioning fixture 1 from blocking the headgear B2.

[0037] In this embodiment, the probe mechanism 2 further includes a movable block 21 and a locking member 22. The positioning fixture 1 has an installation cavity 121 that is matched with the movable block 21. The locking member 22 is installed on the positioning fixture 1 and matched with the movable block 21. The movable block 21 is movably installed on the positioning fixture 1 and its position is locked by the locking member 22. The probe 23 is installed on the first end face of the movable block 21.

[0038] Preferably, the movable block 21 has a plurality of locking holes 211 that cooperate with the locking member 22 for positioning.

[0039] Preferably, probe 23 is a spring probe 23.

[0040] Preferably, the locking component 22 in this embodiment uses a knob plunger. A knob plunger is a standard mechanical component. Rotating the knob can drive the internal plunger head (pin) to extend or retract, and it is commonly used for positioning and locking. In this embodiment, after the plunger head extends, it is inserted into the locking hole 211 of the movable block 21 to achieve mechanical interlocking, rather than relying on friction to press the side.

[0041] In this embodiment, the probe mechanism 2 further includes a limiting part 24, which is installed at the bottom of the movable block 21 and engages with the positioning fixture 1 for limiting.

[0042] Preferably, the limiting part 24 is a limiting protrusion that extends vertically inward from the movable block 21 and is located at the bottom of the movable block 21.

[0043] In this embodiment, the positioning fixture 1 is provided with a limiting groove 113 that cooperates with the limiting part 24 for limiting.

[0044] In this embodiment, the probe mechanism 2 further includes an anti-detachment part 25, which is installed at the bottom of the limiting part 24 and engages with the positioning fixture 1 for limiting. Therefore, the anti-detachment part 25 effectively prevents the probe mechanism 2 from completely detaching from the positioning fixture 1 when not in operation.

[0045] Preferably, the anti-loosening part 25 is a bolt.

[0046] In this embodiment, the probe mechanism 2 further includes a handheld part 26, which is disposed on the second end face of the movable block 21.

[0047] Preferably, the handle 26 is a bolt.

[0048] In this embodiment, there are multiple probe mechanisms 2. The body B11 includes a central body B11a and side bodies B11b disposed on both sides of the central body B11a. The probe mechanism 2 includes a first probe mechanism 2a that cooperates with the electrode unit B12 disposed on the central body B11a and two second probe mechanisms 2b that cooperate with the electrode unit B12 disposed on the side bodies B11b. The second probe mechanisms 2b are located on both sides of the first probe mechanism 2a, and the plane where the movable block 21 of the first probe mechanism 2a is located is not parallel to the plane where the movable block 21 of the second probe mechanism 2b is located. That is, the positioning fixture of this utility model is applicable to the EEG device B to be tested where multiple electrode units B12 are non-planarly distributed.

[0049] Preferably, the middle body B11a has 6 electrode units B12 and the corresponding first probe mechanism 2a has 6 probes 23 on the movable block 21. The side body B11b has 2 electrode units B12 and the corresponding second probe mechanism 2b has 2 probes 23 on the movable block 21.

[0050] In this embodiment, the positioning fixture 1 includes a front housing 11, a rear housing 12, and fasteners 13. The front housing 11 and the rear housing 12 are first aligned, and then connected as a whole by fasteners 13 such as screws. The contour groove 10 is formed by the front housing 11 and the rear housing 12.

[0051] Preferably, the positioning fixture 1 in this embodiment is made of bakelite. Bakelite (phenolic resin) is a commonly used industrial material with excellent insulation, rigidity and machinability, and low cost.

[0052] The working principle and operation steps of the positioning device A of this utility model are as follows: S1. Preparation: Place the EEG device B to be tested, with the headband B2 attached, into the contour slot 10 of the positioning fixture 1, and adjust the headband B2. S2, Insertion: Insert one of the probe mechanisms 2 (e.g., the first probe mechanism 2a) into the mounting cavity 121 corresponding to the positioning fixture 1 until it can no longer be inserted (hard limiting is achieved by the limiting part 24 at the bottom of the movable block 21 and the limiting groove 113 at the bottom of the positioning fixture 1). S3. Locking: Rotate the knob plunger corresponding to the locking component 22 until you feel the plunger head insert into the locking hole 211 on the movable block 21 of the probe mechanism 2. At this time, the probe mechanism 2 is locked. S4. Repeat: Repeat steps S2-S3 to complete the installation of the remaining two probe mechanisms 2 (e.g., two second probe mechanisms 2b); S5. Testing: Conduct electrical tests.

[0053] S6. Disassembly: Loosen the knob plunger in reverse order, pull out each probe mechanism 2 (the anti-drop part 25 will keep it suspended in a half-extracted state), and remove the EEG device.

[0054] As described above, the EEG device positioning device of this utility model is a novel positioning device specifically designed for performance testing of brain-computer interfaces. The core of this device lies in its ability to achieve three major functions: "breaking down the whole into parts, step-by-step operation, and mechanical interlocking." Breaking down the whole into parts (partitioning): The probe mechanism 2 includes multiple active blocks 21, and each active block 21 is equipped with several probes 23, which can decompose the complex problem of "simultaneously aligning multiple points" into multiple simple sub-problems. Step-by-step operation (plug-and-play): Allows operators to install modules one by one, reducing the attention load and difficulty of operation; Mechanical interlock (rigid positioning and locking): First positioning: The probe mechanism 2 is used to cooperate with the mounting cavity 121 on the positioning fixture 1 to achieve macroscopic alignment of the probe 23 with the through hole B121a of the electrode unit B12 ("one cut"). Second locking: The locking element 22 and the movable block 21 lock together to achieve absolute locking at the micro level, eliminating any possibility of springback or loosening and ensuring the stability of the electrical connection.

[0055] The positioning device A of this utility model has at least the following advantages over the prior art: 1. Fundamental improvement in operational performance: It achieves an "unrestricted, blind plug-and-play" operating experience, transforming a complex task that requires high technical skills and concentration into a simple task that can be completed by ordinary people, greatly reducing the difficulty of operation and mental burden.

[0056] 2. Enhanced protection for the device and probe 23: The combination of mechanical guidance and adaptive spring probe 23 completely avoids hard collisions and scratches, greatly reducing the risk of damage to the expensive brain-computer interface device and precision test probe 23 during testing, and extending the device's lifespan.

[0057] 3. Excellent test reliability and consistency: The mechanical rigid locking ensures that the contact state (position, pressure) of all probes 23 is highly repeatable and consistent in each test, completely eliminating random errors introduced by human factors, making the test data true, reliable and highly comparable.

[0058] 4. Test efficiency doubled: Test preparation time (equipment clamping and alignment) is reduced from minutes to seconds, which is especially suitable for batch rapid inspection on the production line and regular calibration of large-scale equipment, greatly improving production efficiency and capacity.

[0059] 5. Reduced overall cost: Firstly, low manufacturing cost: The innovative split-type equipment positioning shell structure transforms the machining difficulties of complex internal cavity parts into the conventional machining of simple parts, greatly reducing the manufacturing difficulty and cost of the fixture itself; Secondly, low maintenance cost: The modular design allows for the replacement of a single damaged probe mechanism 2 without scrapping the entire tooling, making maintenance simple and low-cost.

[0060] 6. Improved product quality: Highly consistent testing ensures the uniformity of product performance, reduces the misjudgment rate caused by testing errors (good products are judged as defective products or defective products are missed in inspection), and improves the reputation of product quality.

[0061] 7. Strategic Value Emerges: Paving the Way for Automated Testing: The fixture has a stable structure and clear operating logic (simple linear insertion and removal actions), making it very easy to integrate into automated equipment, laying a solid foundation for achieving fully automated testing in the future.

[0062] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A brainwave device positioning device, characterized in that, The device includes a positioning fixture (1) and a probe mechanism (2). The positioning fixture (1) has a contoured groove (10) that is matched with the EEG device (B) to be tested. The probe mechanism (2) is movably mounted on the positioning fixture (1) and matches the EEG device (B) to be tested placed in the contoured groove (10).

2. The EEG device positioning device according to claim 1, characterized in that, The EEG device (B) to be tested includes a collector host (B1), the contoured groove (10) is limited to the collector host (B1), the collector host (B1) includes a body (B11) and an electrode unit (B12) installed on the body (B11), the electrode unit (B12) includes an electrode housing (B121) and an electrode sheet disposed in the electrode housing (B121), the electrode housing (B121) has a through hole (B121a), and the probe mechanism (2) includes at least a probe (23) that can be inserted into the through hole (B121a) and abut against the electrode sheet.

3. The EEG device positioning device according to claim 2, characterized in that, The EEG device (B) to be tested also includes a headpiece (B2), which is connected to the acquisition host (B1). The positioning fixture (1) has an avoidance groove (111) that communicates with the contour groove (10) and cooperates with the headpiece (B2).

4. The EEG device positioning device according to claim 3, characterized in that, The positioning fixture (1) has an avoidance notch (112) that communicates with the avoidance groove (111) and is used to prevent the positioning fixture (1) from blocking the headgear (B2).

5. The EEG device positioning device according to claim 2, characterized in that, The probe (23) mechanism (2) further includes a movable block (21) and a locking member (22). The positioning fixture (1) has an installation cavity (121) that is limited to the movable block (21). The locking member (22) is installed on the positioning fixture (1) and is limited to the movable block (21). The movable block (21) is movably installed on the positioning fixture (1) and its position is locked by the locking member (22). The probe (23) is installed on the movable block (21).

6. The EEG device positioning device according to claim 5, characterized in that, The probe mechanism (2) further includes a limiting part (24), which is installed at the bottom of the movable block (21) and engages with the positioning fixture (1) for limiting.

7. The EEG device positioning device according to claim 6, characterized in that, The positioning fixture (1) is provided with a limiting groove (113) that cooperates with the limiting part (24) for limiting.

8. The EEG device positioning device according to claim 7, characterized in that, The probe mechanism (2) further includes an anti-detachment part (25), which is installed at the bottom of the limiting part (24) and is limited in cooperation with the positioning fixture (1).

9. The EEG device positioning device according to claim 5, characterized in that, The probe mechanism (2) also includes a handheld part (26) disposed on the movable block (21).

10. The EEG device positioning device according to any one of claims 5-9, characterized in that, The probe mechanism (2) comprises multiple parts. The body (B11) includes a central body (B11a) and side bodies (B11b) disposed on both sides of the central body (B11a). The probe mechanism (2) includes a first probe mechanism (2a) that cooperates with an electrode unit (B12) disposed on the central body (B11a) and a second probe mechanism (2b) that cooperates with an electrode unit (B12) disposed on the side body (B11b). The second probe mechanism (2b) is located on both sides of the first probe mechanism (2a). The plane where the movable block (21) of the first probe mechanism (2a) is located is not parallel to the plane where the movable block (21) of the second probe mechanism (2b) is located.

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