Active signal amplification device for various electroencephalogram collectors

Abstract

The utility model discloses an active signal amplifying device for various electroencephalogram collectors, which belongs to the technical field of electroencephalogram collection, and comprises an electroencephalogram amplifier main body, one side of the electroencephalogram amplifier main body is fixedly connected with a mounting seat, and the other side of the electroencephalogram amplifier main body is fixedly connected with a power source. One side of the mounting seat is fixedly connected with a sleeve, one end of the sleeve is in threaded connection with a threaded rod, one end of the threaded rod is provided with a leather plug, the outer circumferential surface of the leather plug is in close contact with the inner wall of the sleeve, and the outer circumferential surface of the sleeve is fixedly connected with a five-channel communicating pipe; according to the electroencephalogram amplifier, the placing stability of the electroencephalogram amplifier body on a table top can be greatly improved, even if 16-bit analog signals are completely output and used, the electroencephalogram amplifier body is not prone to moving due to dragging of a circuit, and the possibility that the electroencephalogram amplifier body falls to the ground due to dragging of the circuit is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electroencephalogram (EEG) acquisition technology, and more specifically, to an active signal amplification device for various types of EEG acquisition devices. Background Technology

[0002] The EEG amplifier is an amplifier using large-scale integrated circuits, featuring strong anti-interference capabilities, dual isolation between power supply and EEG signals, ensuring safety and reliability. It allows for pen-free recording of 16-channel EEG data and includes functions for describing various events such as eye-opening, eye-closing, and deep breathing. Multiple lead configurations, including monopolar, bipolar, and reference electrodes, can be arbitrarily set. Histograms, curves, and percentage graphs can be freely selected; continuous playback of spike topography maps and dynamic 3D rotating topography maps are also supported.

[0003] In some existing EEG amplifiers, such as the g.USBamp EEG amplifier, which has a 16-bit analog signal output and can support the acquisition of various types of human EEG signals, it is often used in scientific research to study human EEG. When all 16-bit analog signal outputs are used, the wiring on the EEG amplifier is quite numerous and the circuitry is heavy. The circuitry can easily drag the EEG amplifier placed on a table, causing it to fall off. Therefore, this invention improves an active signal amplification device for various types of EEG acquisition devices. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide an active signal amplification device for various types of EEG acquisition devices. This solves the problem that in the prior art, when all 16-bit analog signal outputs are used, the wiring on the EEG signal amplification device is numerous and the circuits are heavy. The circuits can easily drag the EEG amplifier placed on the table, causing it to fall off the table.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] An active signal amplification device for various types of EEG acquisition devices includes an EEG amplifier body, a mounting base fixedly connected to one side of the EEG amplifier body, a sleeve fixedly connected to one side of the mounting base, a threaded rod threadedly connected to one end of the sleeve, a rubber stopper provided at one end of the threaded rod, the outer circumferential surface of the rubber stopper being in close contact with the inner wall of the sleeve, and a five-channel connecting tube fixedly connected to the outer circumferential surface of the sleeve.

[0009] The lower end of the main body of the EEG amplifier is fixedly connected to four supports, each of which is connected to a five-channel connecting tube, and each of the four supports has four feet at its lower end.

[0010] Furthermore, the support leg includes an external threaded connecting ring and a rubber ring, with the lower end of the external threaded connecting ring fixedly connected to the rubber ring, and the external threaded connecting ring and the support forming a threaded connection.

[0011] Furthermore, a rubber ring is fitted on the outer circumferential surface of the external threaded connecting ring, and the rubber ring is clamped between the support and the external threaded connecting ring.

[0012] Furthermore, a shaft is fixedly connected to one side of the plug, a bearing is fixedly connected to the outer circumference of the shaft, a connecting sleeve is fixedly connected to the outer circumference of the bearing, and one side of the connecting sleeve is fixed to one end of the threaded rod.

[0013] Furthermore, a pair of lever arms are fixedly connected to the outer circumferential surface of the threaded rod.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] (1) After placing the EEG amplifier body on the table, one hand first applies downward pressure to the EEG amplifier body so that the feet are in full contact with the table. Then, the other hand rotates the threaded rod, which will drive the rubber plug to move inside the sleeve. When the rubber plug moves inside the sleeve, it works with the five-channel connecting tube to create negative pressure between the feet and the table, so that the feet can be firmly attached to the table. This greatly improves the stability of the EEG amplifier body on the table. Even when all 16-bit analog signal outputs are used, the dragging of the lines will not easily cause the EEG amplifier body to move, reducing the possibility of the EEG amplifier body falling to the ground due to the dragging of the lines.

[0017] (2) When the threaded rod is rotated to move the rubber plug, the threaded rod and the sleeve can be directly locked to ensure the stability of the rubber plug after it has moved. The pressure can be released by rotating the threaded rod in the opposite direction, which is convenient for personnel to operate and use. Attached Figure Description

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model from a bottom view;

[0020] Figure 3 This is a cross-sectional structural diagram of the sleeve of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the support and legs of this utility model.

[0022] Description of the numbers in the figure:

[0023] 1. EEG amplifier body; 2. Mounting base; 3. Sleeve; 4. Threaded rod; 41. Lever arm; 5. Plug; 51. Shaft; 52. Bearing; 53. Connecting sleeve; 6. Five-channel connecting pipe; 7. Support; 8. Support leg; 81. External threaded connecting ring; 82. Rubber ring; 9. Rubber ring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] Example

[0026] like Figure 1-4 As shown, an active signal amplification device for various types of EEG acquisition devices includes an EEG amplifier body 1, a mounting base 2 fixedly connected to one side of the EEG amplifier body 1, a sleeve 3 fixedly connected to one side of the mounting base 2, a threaded rod 4 threadedly connected to one end of the sleeve 3, a rubber stopper 5 provided at one end of the threaded rod 4, the outer circumferential surface of the rubber stopper 5 in close contact with the inner wall of the sleeve 3, and a five-channel connecting tube 6 fixedly connected to the outer circumferential surface of the sleeve 3.

[0027] The lower end of the EEG amplifier body 1 is fixedly connected to four supports 7, and each of the four supports 7 is connected to a five-channel connecting tube 6. Each of the four supports 7 has four feet 8 at its lower end.

[0028] When in use, after placing the EEG amplifier body 1 on the table, apply downward pressure to the EEG amplifier body 1 with one hand to make the support leg 8 fully contact the table. Then, rotate the threaded rod 4 with the other hand. The threaded rod 4 will drive the leather plug 5 to move inside the sleeve 3. When the leather plug 5 moves inside the sleeve 3, it works with the five-channel connecting tube 6 to create a negative pressure between the support leg 8 and the table, so that the support leg 8 can be firmly attached to the table. This greatly improves the stability of the EEG amplifier body 1 on the table. Even when all 16-bit analog signal outputs are used, the dragging of its lines will not easily cause the EEG amplifier body 1 to move, reducing the possibility that the EEG amplifier body 1 will fall to the ground due to the dragging of its lines.

[0029] When the threaded rod 4 is rotated to move the rubber plug 5, the threaded rod 4 and the sleeve 3 can be directly locked to ensure the stability of the rubber plug 5 after it has moved. The pressure can be released by rotating the threaded rod 4 in the opposite direction, which is convenient for personnel to operate.

[0030] like Figure 1-2 As shown in Figure 4, the support leg 8 includes an external threaded connecting ring 81 and a rubber ring 82. The lower end of the external threaded connecting ring 81 is fixedly connected to the rubber ring 82, and the external threaded connecting ring 81 and the support 7 form a threaded connection.

[0031] In use, the support leg 8 is threadedly connected to the support 7 through the external threaded connecting ring 81. When the support leg 8 is damaged, it is easy to disassemble and replace it. The rubber ring 82 contacts the tabletop to improve the sealing effect between the support leg 8 and the tabletop.

[0032] like Figure 4 As shown, a rubber ring 9 is fitted on the outer circumferential surface of the external threaded connecting ring 81, and the rubber ring 9 is clamped between the support 7 and the external threaded connecting ring 81.

[0033] During use, the rubber ring 9 improves the sealing between the support 7 and the external threaded connecting ring 81.

[0034] like Figure 1-3 As shown, a shaft 51 is fixedly connected to one side of the plug 5. A bearing 52 is fixedly connected to the outer circumference of the shaft 51. A connecting sleeve 53 is fixedly connected to the outer circumference of the bearing 52. One side of the connecting sleeve 53 is fixed to one end of the threaded rod 4.

[0035] When in use, when the threaded rod 4 is rotated, the plug 5 will not rotate synchronously with the threaded rod 4. Only radial friction will occur between the threaded rod 4 and the sleeve 3, and there will be no axial friction, which can reduce the wear of the plug 5 and improve the service life of the plug 5.

[0036] like Figure 3 As shown, a pair of lever arms 41 are fixedly connected to the outer circumference of the threaded rod 4.

[0037] In use, the threaded rod 4 can be easily rotated by the lever arm 41.

[0038] In summary, the specific working process of this solution is as follows: After placing the EEG amplifier body 1 on the table, one hand first applies downward pressure to the EEG amplifier body 1 so that the support leg 8 is in full contact with the table. Then, the other hand rotates the threaded rod 4. The threaded rod 4 will drive the leather plug 5 to move inside the sleeve 3. When the leather plug 5 moves inside the sleeve 3, in conjunction with the five-channel connecting tube 6, a negative pressure can be generated between the support leg 8 and the table, so that the support leg 8 can be firmly attached to the table. This greatly improves the stability of the EEG amplifier body 1 on the table. Even when all 16-bit analog signal outputs are used, the dragging of its lines will not easily cause the EEG amplifier body 1 to move, reducing the possibility that the EEG amplifier body 1 will fall to the ground due to the dragging of its lines.

[0039] When the threaded rod 4 is rotated to move the rubber plug 5, the threaded rod 4 and the sleeve 3 can be directly locked to ensure the stability of the rubber plug 5 after it has moved. The pressure can be released by rotating the threaded rod 4 in the opposite direction, which is convenient for personnel to operate.

[0040] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. An active signal amplification device for various types of EEG acquisition devices, comprising an EEG amplifier body (1), characterized in that: A mounting base (2) is fixedly connected to one side of the main body (1) of the EEG amplifier. A sleeve (3) is fixedly connected to one side of the mounting base (2). A threaded rod (4) is threaded to one end of the sleeve (3). A leather plug (5) is provided at one end of the threaded rod (4). The outer circumferential surface of the leather plug (5) is in close contact with the inner wall of the sleeve (3). A five-channel connecting pipe (6) is fixedly connected to the outer circumferential surface of the sleeve (3). The lower end of the main body (1) of the EEG amplifier is fixedly connected to four supports (7), and the four supports (7) are all connected to the five-channel connecting pipe (6). The lower end of the four supports (7) is provided with four feet (8).

2. The active signal amplification device for multiple types of EEG acquisition devices according to claim 1, characterized in that: The support leg (8) includes an external threaded connecting ring (81) and a rubber ring (82). The lower end of the external threaded connecting ring (81) is fixedly connected to the rubber ring (82), and the external threaded connecting ring (81) and the support (7) form a threaded connection.

3. The active signal amplification device for multiple types of EEG acquisition devices according to claim 2, characterized in that: A rubber ring (9) is fitted on the outer circumferential surface of the external threaded connecting ring (81), and the rubber ring (9) is clamped between the support (7) and the external threaded connecting ring (81).

4. The active signal amplification device for multiple types of EEG acquisition devices according to claim 1, characterized in that: A shaft (51) is fixedly connected to one side of the plug (5), a bearing (52) is fixedly connected to the outer circumference of the shaft (51), a connecting sleeve (53) is fixedly connected to the outer circumference of the bearing (52), and one side of the connecting sleeve (53) is fixed to one end of the threaded rod (4).

5. The active signal amplification device for multiple types of EEG acquisition devices according to claim 1, characterized in that: A pair of lever arms (41) are fixedly connected to the outer circumference of the threaded rod (4).

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