Head-mounted electroencephalogram acquisition device

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a head-mounted electroencephalogram acquisition device which comprises a base, a circular mounting plate is fixedly connected to one side of the base, track plates distributed in an array mode are fixed to the circular mounting plate, sliding blocks are connected to the track plates in a sliding mode, round rods are fixedly connected to one sides of the sliding blocks, and the round rods are fixedly connected to the other sides of the sliding blocks. A signal acquisition part is mounted at the tail end of the round rod, an annular plate is fixedly connected to the position, located on the outer side of the track plate, of the round mounting plate, a round plate is rotationally connected to the annular plate, and arc-shaped grooves distributed in an array mode are formed in the round plate. The retractable signal acquisition part is arranged on the base, the motor can drive the circular plate to rotate through the meshing relation between the gear and the gear ring, then the signal acquisition part is controlled to synchronously retract and expand, the position of the signal acquisition part is adjusted, and then the use requirements of different patients can be met; and the problem of low universality of the device at the present stage is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a head-mounted electroencephalogram acquisition device. Background Technique

[0002] The head-mounted electroencephalogram acquisition device is used to collect the electroencephalogram signals of patients, and mainly consists of a base, a circuit board, electrodes, etc. For example, a kind of electroencephalogram acquisition device, head-mounted electroencephalogram acquisition device and system disclosed in the patent publication number CN201922382908.4, this scheme collects electroencephalogram signals through a telescopic mechanism, but the telescopic mechanism in this scheme is connected to the base in a matching manner, so that the telescopic mechanism cannot be retracted and controlled, and its position cannot be adjusted synchronously, and then the detection area cannot be adjusted. Therefore, it cannot meet the use of different patients, such as adults and children. The head contour of children is significantly smaller than that of adults. Therefore, this scheme cannot meet the use of different patients and has poor versatility. Therefore, improvement is needed. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] Aiming at the deficiencies of the prior art, the utility model provides a head-mounted electroencephalogram acquisition device. By arranging a retractable and expandable signal acquisition component on the base, the motor can drive the circular plate to rotate through the meshing relationship between the gear and the toothed ring, and then control the signal acquisition component to contract and expand synchronously, adjust the position of the signal acquisition component, and then can meet the use of different patients, solving the problem of poor versatility of the current device.

[0005] (2) Technical Solutions

[0006] The utility model specifically adopts the following technical solutions to achieve the above purposes:

[0007] A head-mounted electroencephalogram acquisition device includes a base. One side of the base is fixedly connected with a circular mounting plate. The circular mounting plate is fixed with an array of track plates. A sliding block is slidably connected to each track plate. One side of the sliding block is fixedly connected with a round rod. The end of the round rod is provided with a signal acquisition component. And a circular plate is fixedly connected to the outside of the track plate on the circular mounting plate. The circular plate is rotatably connected with a circular plate. The circular plate is provided with an array of arc-shaped grooves. The round rod is adapted to be arranged in the corresponding arc-shaped grooves.

[0008] Furthermore, a circuit board is installed in the installation groove opened on one side of the base. And a sealing groove is opened on one side of the base where the installation groove is located. A sealing plate is fixedly connected to the sealing groove of the base. A wire harness is connected to the circuit board. The wire harness extends to the outside of the base through the hole opened on the base.

[0009] Further, wire arranging holes are provided at the centers of the sealing plate, the circular mounting plate, and the circular plate, and the signal lines on the signal acquisition component are connected to the circuit board through the wire arranging holes.

[0010] Further, the bottom of the signal acquisition component abuts against the scalp cutin layer to collect electroencephalogram signals and transmit the signals to the circuit board through the signal lines.

[0011] Further, a first toothed ring is fixedly connected to the outer wall of the circular plate, and a first motor is installed on the base. A first gear is fixedly connected to the output shaft of the first motor, and the first gear is meshed with the first toothed ring.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the present utility model provides a head-mounted electroencephalogram acquisition device, which has the following

[0014] beneficial effects:

[0015] In the present utility model, by fixing the track plates distributed in an array on the circular mounting plate on one side of the base, the sliding blocks are slidably connected to the track plates, a round rod is arranged on one side of the sliding block, and the signal acquisition component is installed at the end of the round rod. When the motor drives the circular plate to rotate through the meshing relationship between the gear and the toothed ring, the sliding block and the round rod can be driven to expand and contract synchronously, so that the sliding block moves on the corresponding track plate, and then drives the signal acquisition component to expand and contract, adjusting the actual position of the signal acquisition component. Therefore, the position of the signal acquisition component in this device can be adjusted, the acquisition area can be adjusted, and thus the use of different types of patients can be satisfied, such as children and adults. When children use it, the signal acquisition component can be contracted to adapt to the use under different patients and different requirements, and the versatility is stronger. Description of the drawings

[0016] Figure 1 is a schematic structural diagram of the present utility model when disassembled;

[0017] Figure 2 is a schematic structural diagram of the present utility model;

[0018] Figure 3 is a schematic structural diagram of another expansion and contraction method of the signal acquisition component in the present utility model.

[0019] In the figure: 1, base; 2, mounting groove; 3, sealing groove; 4, wiring harness; 5, circuit board; 6, sealing plate; 7, circular mounting plate; 8, track plate; 9, sliding block; 10, round rod; 11, signal acquisition component; 12, annular plate; 13, round plate; 14, arc groove; 15, first toothed ring; 16, first gear; 17, first motor; 18, lead screw; 19, spiral bevel gear; 20, annular mounting seat; 21, spiral bevel gear ring; 22, second toothed ring; 23, second motor; 24, second gear. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment

[0022] As Figure 1 and Figure 2 shown, a head-mounted electroencephalogram acquisition device proposed in an embodiment of the present invention includes a base 1. One side of the base 1 is fixedly connected with a circular mounting plate 7. The circular mounting plate 7 is fixed with track plates 8 distributed in an array. The track plates 8 are all slidably connected with sliding blocks 9. And one side of the sliding block 9 is fixedly connected with a round rod 10. The end of the round rod 10 is provided with a signal acquisition component 11. And the circular mounting plate 7 is fixedly connected with an annular plate 12 outside the track plate 8. A round plate 13 is rotatably connected to the annular plate 12. The round plate 13 is provided with arc grooves 14 distributed in an array. The round rod 10 is adapted to be arranged in the corresponding arc grooves 14.

[0023] It should be noted that the base 1 is the basic support part of the device. By fixedly connecting the circular mounting plate 7 on one side of the base 1, the circular mounting plate 7 is used for the connection and fixation of the track plate 8 and the annular plate 12. The arrangement of the track plate 8 can realize the sliding connection of the sliding block 9. The round rod 10 is respectively connected and fixed with the sliding block 9 and the signal acquisition component 11. When the sliding block 9 moves, the signal acquisition component 11 can be driven to move accordingly. By rotatably connecting the round plate 13 on the annular plate 12, and the arc grooves 14 on the round plate 13 are adapted to the corresponding round rods 10. When the round plate 13 rotates, the round rod 10 can be moved through the limiting relationship of the arc grooves 14, so that the sliding block 9 slides along the corresponding track plate 8, and then drives the signal acquisition component 11 to contract or expand, adjusting the position of the signal acquisition component 11. This method can synchronously control the contraction or expansion of the signal acquisition component 11 and adjust its position, so as to meet the use of different patients.

[0024] AsFigure 1 As shown, in some embodiments, a circuit board 5 is installed on the installation groove 2 opened on one side of the base 1, and a sealing groove 3 is opened on one side of the base 1 where the installation groove 2 is located. A sealing plate 6 is fixedly connected to the sealing groove 3 of the base 1. A wire harness 4 is connected to the circuit board 5, and the wire harness 4 extends to the outside of the base 1 through a hole opened on the base 1.

[0025] It should be noted that the installation groove 2 is provided for the installation of the circuit board 5, and the sealing plate 6 is used for the protection of the circuit board 5. By connecting the wire harness 4 to the circuit board 5, the collected signals can be transmitted to the upper device to realize the transmission and acquisition of signals.

[0026] As Figure 1 shown, in some embodiments, wire routing holes are opened at the centers of the sealing plate 6, the circular mounting plate 7, and the circular plate 13. The signal lines on the signal acquisition component 11 are connected to the circuit board 5 through the wire routing holes.

[0027] It should be noted that the setting of the wire routing holes facilitates the routing of the signal lines and realizes the signal transmission of the signal acquisition component 11.

[0028] As Figure 1 shown, in some embodiments, the bottom of the signal acquisition component 11 abuts against the scalp cutin layer to collect electroencephalogram signals, and the signals are transmitted to the circuit board 5 through the signal lines.

[0029] It should be noted that the bottom of the signal acquisition component 11 abuts against the scalp cutin layer, and then the electroencephalogram signals are collected. The usage method and principle of the signal acquisition component 11 are known prior arts and will not be elaborated here.

[0030] As Figure 1 and Figure 2 shown, in some embodiments, a first toothed ring 15 is fixedly connected to the outer wall of the circular plate 13, and a first motor 17 is installed on the base 1. A first gear 16 is fixedly connected to the output shaft of the first motor 17, and the first gear 16 is meshed with the first toothed ring 15.

[0031] It should be noted that when it is necessary to control the rotation of the circular plate 13 and then control the contraction and expansion movement of the signal acquisition component 11, the first motor 17 is driven to work. The first motor 17 drives the first gear 16 to rotate. The first gear 16 is meshed with the first toothed ring 15, and then the rotation drive of the circular plate 13 is realized. When the circular plate 13 rotates, the sliding block 9 can move on the track plate 8 through the limiting relationship of the arc-shaped groove 14 for the round rod 10, realizing the movement control of the signal acquisition component 11.

[0032] As Figure 3As shown, different from the above solution, the present utility model can also realize the contraction and expansion control of the signal acquisition component 11 through the lead screw 18, spiral bevel gear ring 21, second gear ring 22, etc., without using the annular plate 12, circular plate 13, first gear ring 15, first gear 16 and first motor 17; in this solution, the lead screw 18 is rotatably connected to the track plate 8, and the lead screw 18 is threadedly connected to the sliding block 9. When the lead screw 18 rotates, it can drive the sliding block 9 to slide on the corresponding track plate 8, and one end of the lead screw 18 extends to the outside of the track plate 8 and is fixedly connected to the spiral bevel gear 19. The base 1 is fixedly connected to the annular mounting seat 20 outside the circular mounting plate 7. The spiral bevel gear ring 21 is rotatably connected to the annular mounting seat 20, and the spiral bevel gear ring 21 meshes with the spiral bevel gear 19. When the spiral bevel gear ring 21 rotates, it can drive all the lead screws 18 to rotate through the meshing relationship between it and the spiral bevel gear 19, and then control the movement of the sliding block 9 to realize the contraction and expansion control of the signal acquisition component 11. The second gear ring 22 is fixed on the outer wall of the spiral bevel gear ring 21, and a second motor 23 is installed on the base 1. A second gear 24 is coaxially arranged on one side of the second motor 23, and the second gear 24 is meshed with the second gear ring 22. The second motor 23 can control the rotation of the second gear 24. The second gear 24 meshes with the second gear ring 22, and then drives the spiral bevel gear ring 21 and the second gear ring 22 to rotate, realizing the rotational drive of the spiral bevel gear ring 21 on the annular mounting seat 20. This method can also realize the contraction and expansion control of the signal acquisition component 11 and has good stability.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A head-mounted electroencephalogram (EEG) acquisition device, comprising a base (1), characterized in that: A circular mounting plate (7) is fixedly connected to one side of the base (1), a track plate (8) distributed in an array is fixed to the circular mounting plate (7), a sliding block (9) is slidably connected to each track plate (8), and a round rod (10) is fixedly connected to one side of the sliding block (9), a signal acquisition component (11) is installed at the end of the round rod (10), and the circular mounting plate (7) is located on the outer side of the track plate (8) and is fixedly connected to an annular plate (12), a circular plate (13) is rotatably connected to the annular plate (12), and the circular plate (13) is provided with arc grooves (14) distributed in an array, and the round rod (10) is adapted in the corresponding arc groove (14).

2. A head-mounted EEG acquisition device according to claim 1, characterized in that: A circuit board (5) is installed on a mounting groove (2) provided on one side of the base (1), and a sealing groove (3) is provided on the base (1) on one side of the mounting groove (2), a sealing plate (6) is fixedly connected to the sealing groove (3) of the base (1), and a wiring harness (4) is connected to the circuit board (5), and the wiring harness (4) extends to the outside of the base (1) through a hole provided on the base (1).

3. A head-mounted EEG acquisition device according to claim 2, characterized in that: The sealing plate (6), the circular mounting plate (7) and the circular plate (13) are all provided with wiring holes at their centers, and the signal wires on the signal collection component (11) are connected to the circuit board (5) through the wiring holes.

4. A head-mounted EEG acquisition device according to claim 3, characterized in that: The bottom of the signal collection component (11) abuts against the scalp stratum corneum to collect brain electrical signals, and transmits the signals to the circuit board (5) via signal lines.

5. The head-mounted EEG acquisition device according to claim 1, characterized in that: A first gear ring (15) is fixedly connected to the outer wall of the circular plate (13), and a first motor (17) is installed on the base (1). A first gear (16) is fixedly connected to the output shaft of the first motor (17), and the first gear (16) is meshingly connected to the first gear ring (15).

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