Electroencephalogram signal acquisition device

Abstract

The utility model discloses an electroencephalogram signal acquisition device, and relates to the technical field of electroencephalogram signal acquisition, the electroencephalogram signal acquisition device comprises a connecting block and an adjusting assembly, the inner side of the upper end of the connecting block is provided with a mounting groove, and the adjusting assembly used for adjusting the acquisition position is arranged in the mounting groove; the adjusting assembly comprises a mounting rod, an adjusting hole, a limiting frame, an adjusting ring, a collecting rod and an inserting hole, the adjusting hole is formed in the middle of the mounting rod, the limiting frame is mounted on the outer surface of the mounting rod, and the adjusting ring is arranged in the limiting frame. According to the electroencephalogram signal collecting device, electroencephalogram signals of different positions of the brain of a person are collected by installing the collecting rods through the three sets of installing rods and the adjusting holes, the limiting frame enables the adjusting ring to rotate in the limiting frame within a limited range, and the adjusting ring rotates to drive the collecting rods to ascend and descend in the limiting frame to adjust the position; the position of the collecting rod is adjusted according to different brain shapes, so that the collecting rod is in tight contact with the scalp, and the accuracy of collected signals is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of electroencephalogram (EEG) signal acquisition technology, specifically to an EEG signal acquisition device. Background Technology

[0002] Electroencephalography (EEG) signals are physiological electrical signals generated by the collective firing of brain cells. Acquiring these signals via electrodes allows for the monitoring of brain physiological activity and cognitive states. Different frequency bands of EEG signals are associated with different physiological processes and are widely used in the diagnosis of brain diseases, emotion assessment, and brain-computer interfaces. An electroencephalogram (EEG) is a comprehensive reflection of the electrophysiological activity of brain nerve cells on the cerebral cortex or scalp surface. The EEG signals displayed contain a wealth of physiological and disease information. In clinical medicine, EEG signal processing not only provides diagnostic evidence for certain brain diseases but also offers effective treatment methods for others.

[0003] For example, the utility model with application number CN202021676282.4 provides a brainwave signal acquisition device. The technical solution of this utility model can make the acquisition electrodes fit closely to the user's forehead, while improving comfort. However, in the existing signal acquisition process, people's head shapes are different and their heads are uneven. It is inconvenient to adjust the position of the acquisition device, which can easily lead to poor contact between the electrodes and the cerebral cortex, causing the acquired brainwave signals to be distorted and unable to acquire the original clear brainwave signals.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a brainwave signal acquisition device. Utility Model Content

[0005] The purpose of this invention is to provide an electroencephalogram (EEG) signal acquisition device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electroencephalogram (EEG) signal acquisition device, comprising a connecting block and an adjustment component. The connecting block has an inner mounting groove at its upper end. The adjustment component for adjusting the acquisition position is disposed inside the mounting groove. The adjustment component includes a mounting rod, an adjustment hole, a limiting frame, an adjustment ring, an acquisition rod, and a insertion hole. The mounting rod has an adjustment hole in its middle portion, and a limiting frame is mounted on the outer surface of the mounting rod. An adjustment ring is disposed inside the limiting frame, and an acquisition rod is disposed in the middle portion of the adjustment ring. An insertion hole is disposed at the upper end of the acquisition rod.

[0007] Furthermore, the mounting rod and the adjustment hole are an integrated structure, and the mounting rod and the limiting frame are fixedly connected.

[0008] Furthermore, the connecting block is connected to a connecting plate on its side, and the connecting plate has a hollow groove inside.

[0009] Further, the connecting plate and the hollow slot are integrated structures, and the hollow slot is internally provided with an insertion rod.

[0010] Further, the outer side of the connecting plate is provided with a fastening sheet, and the outer side of the end of the fastening sheet is provided with a fixing frame.

[0011] Further, the fastening sheet and the fixing frame are symmetrically provided with two groups about the central axis of the adapter block, and the outer side of the fixing frame is provided with a fastening bolt.

[0012] Further, the bottom of the adapter block is provided with an auxiliary assembly for assisting wearing, and the number of the auxiliary assembly is provided with two groups.

[0013] Further, the auxiliary assembly comprises a receiving slot and a wearing rope, and the receiving slot is internally provided with the wearing rope.

[0014] The utility model provides a kind of electroencephalogram acquisition device, with the following beneficial effects:

[0015] 1, the utility model is used for the installation of three groups of installation rod and adjusting hole to the installation pole to the brain electrical signal of different positions of personnel brain is collected, and the adjusting ring is rotated in its internal limit range by limiting frame, and the adjusting ring is rotated to drive the installation pole to be adjusted in its internal position, so that the installation pole is adjusted according to different brain shape, so that the installation pole and scalp contact closely guarantee the accuracy of acquisition signal.

[0016] 2, the utility model is moved outside the insertion rod by connecting plate to adjust the spacing of adapter block, and it is convenient to install acquisition device on the head of personnel, and when adjusting, installation pole is adjusted according to elastic bending cooperation connecting plate, fastening sheet is moved in fixing frame and is fixed by fastening bolt to control the connection of connecting plate and insertion rod, receiving slot is used for the storage of wearing rope, and wearing rope is used for the wearing of acquisition device by being worn from arm to the shoulder position of personnel, and it is easy to operate. DRAWINGS

[0017] Fig. 1 It is the whole structure schematic view of the utility model a kind of electroencephalogram acquisition device;

[0018] Fig. 2 It is the adjusting assembly structure schematic view of the utility model a kind of electroencephalogram acquisition device;

[0019] Fig. 3 It is the auxiliary assembly structure schematic view of the utility model a kind of electroencephalogram acquisition device.

[0020] In the diagram: 1. Connecting block; 2. Mounting slot; 3. Adjustment component; 301. Mounting rod; 302. Adjustment hole; 303. Limiting frame; 304. Adjustment ring; 305. Collection rod; 306. Insertion hole; 4. Connecting plate; 5. Hollow slot; 6. Inner rod; 7. Fastening plate; 8. Fixing frame; 9. Fastening bolt; 10. Auxiliary component; 1001. Storage slot; 1002. Wearing rope. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Fig. 1 As shown, an EEG signal acquisition device includes a connecting block 1 and an adjustment component 3. The inner side of the upper end of the connecting block 1 is provided with an installation groove 2. A connecting plate 4 is connected to the side of the connecting block 1. The connecting plate 4 moves outside the inner insertion rod 6 to adjust the spacing of the connecting block 1, which facilitates the installation of the acquisition device on the head of the person. During adjustment, the installation rod 301 itself bends elastically to cooperate with the adjustment of the connecting plate 4. A hollow groove 5 is provided inside the connecting plate 4. The connecting plate 4 and the hollow groove 5 are an integrated structure. An inner insertion rod 6 is provided inside the hollow groove 5. A fastening plate 7 is installed on the outer side of the connecting plate 4. The fastening plate 7 moves inside the fixing frame 8 and is fixed by fastening bolts 9 to control the connection and fixation of the connecting plate 4 and the inner insertion rod 6. A fixing frame 8 is provided outside the end of the fastening plate 7. Two sets of fastening plates 7 and fixing frames 8 are symmetrically arranged about the central axis of the connecting block 1. Fastening bolts 9 are provided on the outer side of the fixing frame 8.

[0023] like Fig. 2 As shown, the adjustment component 3 for adjusting the acquisition position is disposed inside the mounting slot 2. The adjustment component 3 includes a mounting rod 301, an adjustment hole 302, a limiting frame 303, an adjustment ring 304, an acquisition rod 305, and a insertion hole 306. The mounting rod 301 has an adjustment hole 302 in the middle. The three sets of mounting rods 301 and adjustment holes 302 are used for the installation of the acquisition rod 305 to acquire EEG signals from different locations on the human brain. The mounting rod 301 and the adjustment hole 302 are an integrated structure, and the mounting rod 301 and the limiting frame 303 are fixedly connected. A limit frame 303 is installed on the outer surface of the device. The limit frame 303 allows the adjusting ring 304 to rotate within a limited range. The adjusting ring 304 is provided inside the limit frame 303, and a data acquisition rod 305 is provided in the middle of the adjusting ring 304. The rotation of the adjusting ring 304 drives the data acquisition rod 305 to rise and fall within its interior to adjust its position, so that the data acquisition rod 305 can be adjusted according to different brain shapes. This ensures that the data acquisition rod 305 makes close contact with the scalp to ensure the accuracy of the acquired signal. A plug hole 306 is provided at the upper end of the data acquisition rod 305 for connecting the signal acquisition line.

[0024] As Fig. 3 The bottom of the adapter block 1 is provided with an auxiliary assembly 10 for assisting wearing, and the number of the auxiliary assembly 10 is provided with two groups, the auxiliary assembly 10 comprises a receiving groove 1001 and a wearing rope 1002, the receiving groove 1001 is used for receiving the wearing rope 1002, and the inside of the receiving groove 1001 is provided with the wearing rope 1002, the wearing rope 1002 is worn from the arm to the shoulder position of the person for wearing the acquisition device, and the operation is simple.

[0025] In summary, the electroencephalogram acquisition device firstly according to Figs. 1-3 The wearing rope 1002 is taken out from the receiving groove 1001, and the arm is worn to the shoulder position of the person for wearing the acquisition device, then the connecting plate 4 moves outside the inner inserting rod 6 to adjust the spacing of the adapter block 1, which is convenient for the installation of the acquisition device on the head of the person, and the installation rod 301 is adjusted according to the elastic bending of the connecting plate 4, then the fastening bolt 9 is tightened to fix the fastening piece 7 inside the fixed frame 8, that is, the connection and fixation of the connecting plate 4 and the inner inserting rod 6, the operation is simple, then the installation rod 301 is rotated to roughly adjust the position of the acquisition rod 305, then the adjusting ring 304 is rotated, the limiting frame 303 makes the adjusting ring 304 rotate inside the limited range, the adjusting ring 304 drives the acquisition rod 305 to adjust the position inside it, so that the acquisition rod 305 adjusts the position according to different brain shapes, so that the acquisition rod 305 and the scalp are in close contact to ensure the accuracy of the acquisition signal.

[0026] The embodiments of the present application are given for the purpose of example and description, and are not exhaustive or limit the present application to the disclosed forms. Many modifications and variations are obvious to those skilled in the art. The embodiments are selected and described in order to better illustrate the principles and practical application of the present application, and to enable those skilled in the art to understand the present application so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. An electroencephalographic signal acquisition device comprising a coupling block (1) and an adjustment assembly (3), characterized in that, The inner side of the upper end of the adapter block (1) is provided with a mounting groove (2), the adjusting assembly (3) for adjusting the collection position is arranged in the mounting groove (2), and the adjusting assembly (3) comprises a mounting rod (301), an adjusting hole (302), a limiting frame (303), an adjusting ring (304), a collection rod (305) and a plug-in hole (306), the middle part of the mounting rod (301) is provided with the adjusting hole (302), and the outer surface of the mounting rod (301) is provided with the limiting frame (303), the inner side of the limiting frame (303) is provided with the adjusting ring (304), and the middle part of the adjusting ring (304) is provided with the collection rod (305), and the upper end of the collection rod (305) is provided with the plug-in hole (306).

2. The device for collecting electroencephalogram signals according to claim 1, wherein, The mounting rod (301) and the adjusting hole (302) are an integrated structure, and the mounting rod (301) and the limiting frame (303) are fixedly connected.

3. The device for collecting electroencephalogram signals according to claim 1, wherein, The side of the adapter block (1) is connected with a connecting plate (4), and the inner side of the connecting plate (4) is provided with a hollow groove (5).

4. The device for collecting electroencephalogram signals according to claim 3, wherein, The connecting plate (4) and the hollow groove (5) are an integrated structure, and the inner side of the hollow groove (5) is provided with an inner plug-in rod (6).

5. The device for collecting electroencephalogram signals according to claim 3, wherein, The outer side of the connecting plate (4) is provided with a fastening piece (7), and the outer side of the end of the fastening piece (7) is provided with a fixed frame (8).

6. The device for collecting electroencephalogram signals according to claim 5, wherein, The fastening piece (7) and the fixed frame (8) are symmetrically provided with two groups about the central axis of the adapter block (1), and the outer side of the fixed frame (8) is provided with a fastening bolt (9).

7. The device for collecting electroencephalogram signals according to claim 1, wherein, The bottom of the adapter block (1) is provided with an auxiliary assembly (10) for assisting wearing, and the number of the auxiliary assembly (10) is two.

8. The device for collecting electroencephalogram signals according to claim 7, wherein, The auxiliary assembly (10) comprises a receiving groove (1001) and a wearing rope (1002), and the inner side of the receiving groove (1001) is provided with the wearing rope (1002).

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