Portable brain function assessment instrument and method thereof

Abstract

The invention belongs to the technical field of brain evaluators, and provides a portable brain function evaluator and a method thereof.The portable brain function evaluator comprises a base, a box body is arranged at the top of the base, a box door is arranged at the top of the box body, a plurality of fixing bases are arranged on the bottom face of the box door, folding rods are hinged to the fixing bases, and a movable plate is slidably installed on the front end face of the box body; a display screen is mounted on the bottom surface of the box door; through the arrangement of the base, the box body and the detection mechanism, the weight of the equipment is effectively dispersed, the rollover risk caused by the high gravity center is reduced, a stable supporting foundation is provided for the whole equipment, and it is ensured that the equipment is not prone to shaking or toppling over in the detection process; a signal acquisition module, a signal processing module, a data analysis module, a data storage and management module and a user interaction module are integrated, the brain function state can be comprehensively evaluated, the electrical activity characteristics of the brain in different function states can be deeply known, and an important basis is provided for diagnosis of various brain diseases.

Description

Technical Field

[0001] The invention belongs to the technical field of brain evaluation instruments, in particular to a portable brain function evaluation instrument and a method thereof. Background Art

[0002] An evaluator is a device used to measure, analyze and evaluate specific parameters or performance. It is widely used in many fields such as medicine, scientific research, industry, and environment. Among them, brain function evaluators are widely used;

[0003] The brain function assessor is a high-tech device specifically used to evaluate the functional state of an individual's brain. It is based on the analysis of EEG signals and can reflect the subject's psychological, emotional, sleep, brain blood supply and other aspects, providing an important basis for clinical diagnosis and treatment.

[0004] Existing brain function assessors are usually set at the same height as the upper body of the human body, making the device tall and thin, with the center of gravity biased upward, prone to tipping over, causing the brain function assessor to be bumped, lacking protection for the brain function assessor, and the existing brain function assessors have relatively single data collection functions.

[0005] Those skilled in the art have proposed a portable brain function assessment instrument and method thereof to solve the problems raised by the background art. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a portable brain function evaluator and method thereof, so as to solve the problems in the prior art that the brain function evaluator is tall and thin, has a center of gravity that is biased upward, is easy to tip over, and lacks protection for the brain function evaluator.

[0007] A portable brain function assessment instrument comprises: a base, a box body is arranged on the top of the base, a box door is arranged on the top of the box body, a plurality of fixing seats are arranged on the bottom surface of the box door, a folding rod is hinged on the fixing seats, a movable plate is slidably mounted on the front end surface of the box body, and a display screen is mounted on the bottom surface of the box door;

[0008] The detection mechanism comprises a connecting plate, a brain function meter is installed on the surface of the connecting plate, a spring is arranged at the bottom of the connecting plate, a fixing plate is arranged on the inner wall of the box, a blood pressure detection belt is placed on the inner surface of the box, a placement plate is arranged on the upper surface of the connecting plate, a plurality of recording electrodes are arranged on the top of the placement plate, and a signal amplifier is built into the recording electrode;

[0009] The brain function instrument includes a signal acquisition module, a signal processing module, a data analysis module, a data storage and management module and a user interaction module.

[0010] Preferably, the signal acquisition module comprises a recording electrode unit, a blood pressure detection unit and a video acquisition unit, the recording electrode unit is a recording electrode, the blood pressure detection unit is a blood pressure detection belt, and the video acquisition unit is a camera;

[0011] The signal processing module includes a signal amplification module, a filtering submodule, and an analog-to-digital conversion submodule;

[0012] The data analysis module includes a spectrum analysis submodule, a feature extraction submodule, and a pattern recognition submodule;

[0013] The data storage and management module stores the raw data, processed data and analysis results collected by the brain function instrument; and performs management operations on the stored data, including data entry, modification, deletion, backup, recovery and data authority management;

[0014] The user interaction module displays the detection data, analysis results and operation prompt information of the brain function instrument on the display screen, and performs interactive control through the display screen.

[0015] Preferably, the fixing plate is fixed to the inner wall of the box, a plurality of springs are provided, and the plurality of springs are fixed to the inner wall of the box, the connecting plate is slidably connected to the inner wall of the box through springs, the blood pressure detection belt is placed inside the box, the bottom of the brain function instrument is fixed to the top of the connecting plate, the bottom of the placement plate is fixed to the top of the connecting plate, the recording electrode is clamped on the peripheral side of the placement plate, and a downward pressure column is fixedly installed on the upper surface of the placement plate, and the position of the downward pressure column corresponds to the box door.

[0016] Preferably, the movable plate is hinged at the cavity on the front end face of the box, the box door is rotatably connected to the side wall of the box, the side wall of the box is provided with a handle, the handle side wall is rotatably connected to the side wall of the box, and the camera is fixed to the upper surface of the box door.

[0017] Preferably, an adjustment mechanism is provided at the bottom of the base, and the adjustment mechanism includes a support plate, a limit seat is installed on the upper surface of the support plate, a support rod is provided on the side wall of the limit seat, a connecting rod is provided on the side wall of the support rod, and a pin is provided in the connecting rod.

[0018] Preferably, two of the limit seats and support rods are provided, the two side walls of the limit seats are fixedly connected to the top of the support plate, one end of the support rod is rotatably connected to the side wall of the base, the other end of the support rod is rotatably connected to the side wall of the limit seat, the side wall of the connecting rod is rotatably connected to the side wall of the support rod, one end of the pin is embedded in the inside of the connecting rod, the support plate is rotatably connected to the bottom of the base through the support rod, and pin holes are opened on both side walls of the base, and the pins are engaged with the pin holes.

[0019] Preferably, the folding rod is hinged in a groove on the top surface of the box side wall, and the other end of the folding rod is hinged to a fixing seat.

[0020] A method for using a portable brain function assessment instrument comprises the following steps:

[0021] S1: Open the box by turning the door, and take out the blood pressure detection belt and recording electrodes from the box;

[0022] S2: By fixing the blood pressure monitoring belt on the patient's arm, aiming the camera at the patient's face, and fitting the recording electrodes closely to the scalp, signal interference can be reduced;

[0023] S3: Start the data collection program, pre-process the collected raw data, use data analysis software to conduct in-depth analysis on the pre-processed data, extract characteristic information related to brain function, and write a brain function assessment report based on the data analysis results;

[0024] S4: After the test is completed, the recording electrodes on the patient's scalp are removed and placed inside the box. At the same time, the blood pressure detection belt is collected and placed inside the box to achieve the patient's brain evaluation effect.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention effectively disperses the weight of the equipment by providing a base, a box and a detection mechanism, reduces the risk of rollover caused by a high center of gravity, provides a stable support foundation for the entire equipment, and ensures that the equipment will not shake or tip over easily during the detection process; the detection mechanism is accommodated in the box to avoid damage to it caused by external collisions, dust, moisture and other factors.

[0027] 2. The present invention integrates a signal acquisition module, a signal processing module, a data analysis module, a data storage and management module, and a user interaction module to comprehensively evaluate the functional state of the brain. Through the EEG sensor unit, it accurately collects EEG signals generated by brain neuron activities and analyzes EEG signals in different frequency bands, thereby gaining an in-depth understanding of the electrical activity characteristics of the brain in different functional states, providing an important basis for the diagnosis of various brain diseases. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 A flow chart of a portable brain function assessment instrument of the present invention;

[0030] Figure 3 It is a schematic diagram of the box structure of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the connection between the box body and the connecting plate of the present invention;

[0032] Figure 5 It is a structural schematic diagram of a local placement plate of the present invention;

[0033] Figure 6 It is a schematic structural diagram of a cross-section of a connecting plate of the present invention;

[0034] Figure 7 This is a schematic diagram of the structure of the connection between the support plate and the support rod of the present invention;

[0035] Figure 8 It is a schematic structural diagram of the connecting rod of the present invention.

[0036] In the figure:

[0037] 1. Base; 2. Adjustment mechanism; 3. Box body; 4. Handle; 5. Box door; 6. Camera; 7. Fixed seat; 8. Folding rod; 9. Detection mechanism; 10. Display screen; 11. Movable board;

[0038] 201, support plate; 202, limit seat; 203, support rod; 204, connecting rod; 205, pin;

[0039] 901, connecting plate; 902, brain function meter; 903, spring; 904, placement plate; 905, blood pressure detection belt; 906, fixing plate; 907, pressure column; 908, recording electrode. DETAILED DESCRIPTION

[0040] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0041] As attached Figure 1 To Attachment Figure 8 As shown:

[0042] Embodiment 1: The present invention provides a portable brain function assessment instrument, comprising a base 1 and a detection mechanism 9;

[0043] A box body 3 is installed on the top of the base 1, a box door 5 is hingedly installed on the top of the box body 3, a plurality of fixing seats 7 are arranged on the bottom surface of the box door 5, a folding rod 8 is hingedly connected to the fixing seats 7, a movable plate 11 is slidably installed on the front end surface of the box body 3, a display screen 10 is installed on the bottom surface of the box door 5, and the display screen 10 can be quickly seen after the box door 5 is opened;

[0044] Detection mechanism 9, the detection mechanism 9 includes a connection plate 901, a brain function meter 902 is installed on the surface of the connection plate 901, a spring 903 is arranged at the bottom of the connection plate 901, a fixing plate 906 is arranged on the inner wall of the box 3, a blood pressure detection belt 905 is placed on the inner surface of the box 3, a placement plate 904 is arranged on the upper surface of the connection plate 901, a plurality of recording electrodes 908 are arranged on the top of the placement plate 904, and the recording electrodes 908 are built with a signal amplifier, and a lower pressure column 907 is fixedly installed on the upper surface of the placement plate 904, and the position of the lower pressure column 907 corresponds to the box door 5;

[0045] The fixing plate 906 is fixedly connected to the inner wall of the box body 3, a plurality of springs 903 are provided, and the plurality of springs 903 are fixedly connected to the inner wall of the box body 3, the connecting plate 901 is slidably connected to the inner wall of the box body 3 through the springs 903, the blood pressure detection belt 905 is placed inside the box body 3, the bottom of the brain function meter 902 is fixedly connected to the top of the connecting plate 901, the bottom of the placing plate 904 is fixedly connected to the top of the connecting plate 901, and the recording electrode 908 is clamped on the peripheral side of the placing plate 904.

[0046] The movable plate 11 is hinged at the cavity on the front end face of the box body 3, the box door 5 is rotatably connected to the side wall of the box body 3, the side wall of the box body 3 is provided with a handle 4, the side wall of the handle 4 is rotatably connected to the side wall of the box body 3, and the camera 6 is fixed to the upper surface of the box door 5.

[0047] The folding rod 8 is hinged in a groove on the top surface of the side wall of the box body 3 , and the other end of the folding rod 8 is hinged to the fixing seat 7 .

[0048] The brain function instrument 902 includes a signal acquisition module, a signal processing module, a data analysis module, a data storage and management module, and a user interaction module.

[0049] The signal acquisition module includes a recording electrode unit and a video acquisition unit. The recording electrode unit uses a recording electrode 908, and the video acquisition unit uses a camera 6;

[0050] The EEG sensor unit is composed of multiple recording electrodes 908, which are distributed at specific locations on the scalp and are responsible for collecting weak electrical signals generated by brain neuron activity. The electrodes can keenly capture changes in electrical activity in different areas of the brain. The amplitude of the collected signals is usually at the microvolt level and contains brain function information, such as different frequency components corresponding to different brain states, such as delta waves and deep sleep, theta waves and creative thinking, alpha waves and relaxation, beta waves and concentration, gamma waves and high-level cognitive integration, etc.

[0051] The video acquisition unit is composed of a camera 6 and an image acquisition card. The camera is installed in a suitable position and can capture the patient's facial image and video sequence. During the detection process, it is used to capture the patient's facial expression, eye movement and other information, which can be used as an indirect indicator for evaluating brain function. Specific facial expression changes can reflect the patient's emotional state, while eye movement is associated with brain cognitive functions such as attention allocation and visual information processing.

[0052] The signal processing module includes a signal amplification module, a filtering submodule, and an analog-to-digital conversion submodule;

[0053] The signal amplifier submodule amplifies the signal collected by the recording electrode 908 through the signal amplifier, which can amplify the EEG signal at the microvolt level to a range that can be processed by the subsequent circuit. At the same time, it can effectively suppress external noise interference, ensure the quality of the amplified signal, reduce signal distortion, and provide a reliable signal source for subsequent precise analysis.

[0054] The filtering submodule performs filtering operations on the amplified signal to remove various interference components, such as power frequency interference, electromechanical interference, and environmental electromagnetic noise; a notch filter is used to remove power frequency interference, screen out the effective frequency range of the EEG signal, improve the signal-to-noise ratio of the signal, and make the characteristics of the EEG signal clearer and more discernible.

[0055] The analog-to-digital conversion submodule converts the analog EEG signal after amplification and filtering into a digital signal, and performs digital processing and analysis through the built-in system of the Brain Function Analyzer 902. This submodule samples the analog signal according to a certain sampling frequency and quantizes the sampled value into a digital code to ensure that the original signal information is retained as much as possible during the conversion process, laying the foundation for subsequent spectrum analysis, feature extraction and other operations.

[0056] The data analysis module includes a spectrum analysis submodule, a feature extraction submodule, and a pattern recognition submodule;

[0057] The spectrum analysis submodule performs spectrum analysis on digital EEG signals, converts time domain signals into frequency domain representation, and calculates parameters such as power spectrum density, amplitude change, phase relationship, etc. of EEG signals in different frequency bands through fast Fourier transform. It analyzes the power distribution of each frequency component, determines the changes in dominant frequency under different brain states, and the correlation between frequency characteristics between different brain regions, so as to gain a deep understanding of the functional activity patterns and rhythmic changes of the brain.

[0058] Feature extraction submodule: extract representative feature parameters from the spectrum analysis results; features include the power value of the EEG signal, frequency peak, coherence index between different brain regions, blood pressure fluctuation characteristics, amplitude and frequency of facial expression changes, etc.; through feature extraction, the original data is converted into feature vectors, providing key basis for subsequent pattern recognition and disease diagnosis.

[0059] The pattern recognition submodule uses the brain function model and the disease diagnosis model to perform pattern recognition and classification on the extracted feature vectors. The model is constructed based on a large amount of clinical data and experimental research, and the characteristic patterns of normal brain function and various brain diseases (including epilepsy, Alzheimer's disease, cerebrovascular disease, etc.) are obtained through neural network training; the pattern recognition submodule compares and matches the feature vector to be analyzed with the model to determine whether the brain function state is normal. If there is an abnormality, the possible disease type or risk level is further determined, and corresponding diagnostic suggestions or warning information are given.

[0060] The data storage and management module includes a data storage submodule and a data management submodule;

[0061] The data storage submodule is responsible for storing the original data, processed data and analysis results collected by the brain function instrument 902; the original data includes electroencephalogram signals, blood pressure data, facial images and video sequences, etc., the processed data includes spectrum analysis results, feature vectors, etc., and the analysis results cover information such as brain function assessment reports and disease diagnosis conclusions; the data storage adopts a solid-state hard drive and is organized and stored according to the set file format and data structure to facilitate data query, retrieval and subsequent retrospective analysis.

[0062] The data management submodule manages the stored data, including data entry, modification, deletion, backup, recovery, and data permission management. It ensures the integrity, security, and confidentiality of the data, and only authorized operators can access and operate specific data. At the same time, the data management submodule also provides data query and statistical functions, such as data retrieval according to patient name, test time, diagnosis results, etc., and generates data statistical reports to provide data support for clinical research, medical management, etc.

[0063] The user interaction module displays the detection data, analysis results and operation prompt information of the brain function instrument 902 on the display screen 10 , and performs interactive control through the display screen 10 .

[0064] As can be seen from the above, the box body 3 is placed on the desktop so that the bottom of the box body 3 and the desktop are in a horizontal state, and the box door 5 is turned to open the box door 5. When the box door 5 is turned, the pressure on the lower pressure column 907 is lost, and the pressure on the top of the placement plate 904 is reduced. The reverse force of the spring 903 causes the spring 903 to push the connecting plate 901 to move upward, and the connecting plate 901 and the brain function instrument 902 are fixedly connected, so that the connecting plate 901 pushes the brain function instrument 902 to move upward;

[0065] By rotating the baffle, the camera 6 is turned on, and the patient's face is recorded by the camera 6, so that the patient's information is transmitted to the signal processing module;

[0066] By opening the movable plate 11, the front end surface of the box body 3 is in an open state, and the blood pressure detection belt 905 can be taken out, and the blood pressure of the patient can be recorded and detected by the blood pressure detection belt 905, so that the patient's blood is recorded inside the brain function instrument 902;

[0067] Place the recording electrodes 908 on the placement board 904 at the corresponding positions on the patient's scalp, and gently press the electrodes to ensure that each recording electrode 908 is in close contact with the scalp, so that the electrodes can keenly capture changes in electrical activity in different areas of the brain.

[0068] When the brain function instrument 902 is turned on, the system automatically performs a self-check procedure to confirm that the device is operating normally and the connections between various components are stable; if any fault or abnormality is found during the self-check process, the system will display a detailed error message on the display screen 10, prohibit entry into subsequent detection procedures, and prompt the operator to perform corresponding troubleshooting and repair.

[0069] After completing the self-check, the system calibrates the recording electrode 908 to ensure the accuracy and stability of the collected EEG signal. The calibration process may include steps such as checking the impedance of the electrode and adjusting the signal baseline. The operator can make necessary operational adjustments according to the system prompt information.

[0070] At the same time, check whether the camera 6 is working properly and whether the image acquisition is clear. If necessary, fine-tune the angle and focal length of the camera so that it can accurately capture the patient's facial image and video sequence, so as to effectively collect and analyze the patient's facial expressions, eye movements and other information later.

[0071] The operator starts the data acquisition program on the operation interface of the display screen 10, and the signal acquisition module starts working.

[0072] The recording electrode 908 begins to collect weak electrical signals generated by brain neuron activity. These raw EEG signals are first transmitted to the signal amplifier submodule; the signal amplifier amplifies the weak EEG signals and amplifies the microvolt-level EEG signals to a range that can be processed by subsequent circuits, while effectively suppressing external noise interference, ensuring the quality of the amplified signal and reducing signal distortion.

[0073] The amplified EEG signal is transmitted to the filtering submodule, which uses a notch filter to remove power frequency interference and a bandpass filter to screen out the effective frequency range of the EEG signal, remove interference components, improve the signal-to-noise ratio of the signal, and make the characteristics of the EEG signal clearer and more discernible.

[0074] The filtered EEG signal is then transmitted to the analog-to-digital conversion submodule, which samples the analog signal according to a certain sampling frequency, quantizes the sampling value into a digital code, and converts the analog EEG signal after amplification and filtering into a digital signal for subsequent digital processing and analysis.

[0075] At the same time, the video acquisition unit starts working, taking facial images and video sequences of the patient, capturing information such as the patient's facial expressions and eye movements during the test, and transmitting this visual information to the brain function instrument 902 for subsequent processing.

[0076] The blood pressure monitoring belt 905 continuously collects the patient's blood pressure data, including systolic pressure, diastolic pressure, pulse rate and other information, and these blood pressure data are also transmitted to the brain function meter 902 for integrated processing.

[0077] The EEG digital signal after analog-to-digital conversion is transmitted to the data analysis module. First, the spectrum analysis submodule performs spectrum analysis on it, converts the time domain signal into frequency domain representation, and calculates the power spectrum density, amplitude change, phase relationship and other parameters of the EEG signal in different frequency bands (such as delta, theta, alpha, beta, gamma, etc.) through fast Fourier transform. Analyze the power distribution of each frequency component, judge the change of dominant frequency under different brain states, and the correlation of frequency characteristics between different brain regions, so as to gain a deep understanding of the functional activity pattern and rhythmic changes of the brain.

[0078] The feature extraction submodule extracts representative feature parameters from multi-source data such as spectrum analysis results, blood pressure data, and facial information features obtained by the video acquisition unit. These features include the power value of the EEG signal, frequency peak, coherence index between different brain regions, blood pressure fluctuation characteristics, and the amplitude and frequency of facial expression changes. Through feature extraction, a large amount of raw data is converted into a set of feature vectors with more diagnostic value and physiological significance, providing a key basis for subsequent pattern recognition and disease diagnosis.

[0079] The pattern recognition submodule uses the brain function model and disease diagnosis model that are pre-built based on a large amount of clinical data and experimental research and obtained through neural network training to perform pattern recognition and classification on the extracted feature vectors. The feature vector to be analyzed is compared and matched with the normal brain function pattern and the characteristic patterns of various diseases (such as epilepsy, Alzheimer's disease, cerebrovascular disease, etc.) to determine whether the brain function state is normal. If the brain function is normal, the system generates a normal brain function assessment report, including information such as the activity of each frequency band of the brain, the analysis results of blood pressure data, and the observation conclusions of facial expressions and eye movements. If an abnormality is detected, the system further determines the possible disease type or risk level, generates a detailed disease diagnosis report, and gives corresponding diagnostic suggestions, treatment plan recommendations or early warning information.

[0080] The test results generated by the data analysis module include brain function assessment reports and disease diagnosis reports, etc.; as well as related test data, including EEG signal spectrum analysis results, blood pressure data change curves, facial expression analysis conclusions, etc.; are displayed on the display screen 10 through the user interaction module, and the operator can intuitively view and understand the test situation.

[0081] At the same time, the data storage and management module stores the collected raw data, processed data and analysis results.

[0082] Data is stored on solid-state hard drives and organized and stored according to the set file format and data structure to facilitate data query, retrieval and subsequent retrospective analysis; the data management submodule manages the stored data, including data entry, modification, deletion, backup, recovery and data permission management to ensure data integrity, security and confidentiality. Only authorized operators can access and operate specific data.

[0083] After the test is completed, the operator carefully removes the recording electrode 908 from the patient's scalp, cleans it and puts it back to its original position on the placement plate 904. Then, the blood pressure detection belt 905 is removed from the patient's arm, and puts it back into the box 3 after being arranged.

[0084] Turn off the detection program of the brain function instrument 902, and when the detection is completed, close the movable plate 11 and the box door 5;

[0085] In order to achieve the fixing effect of the box body 3 and the movable plate 11, grooves of the same size are provided on the top of the movable plate 11 and the box body 3, so that the box door 5 can be accurately snapped into the inside of the movable plate 11. At the same time, when the box door 5 moves downward, the box door 5 pushes the placement plate 904 to move downward. By utilizing the pressure of the box door 5, the lower pressure column 907 is squeezed by the box door 5, so that the placement plate 904 pushes the connecting plate 901 to move downward. When the connecting plate 901 moves downward, it drives the brain function instrument 902 to move synchronously, so that the brain function instrument 902 moves to the inside of the box body 3, thereby achieving the protection effect of the evaluation instrument.

[0086] Embodiment 2: This embodiment is basically the same as the previous embodiment, except that an adjustment mechanism 2 is provided at the bottom of the base 1, the adjustment mechanism 2 includes a support plate 201, a limit seat 202 is installed on the upper surface of the support plate 201, a support rod 203 is provided on the side wall of the limit seat 202, a connecting rod 204 is provided on the side wall of the support rod 203, and a pin 205 is provided in the connecting rod 204.

[0087] There are two limit seats 202 and support rods 203. The side walls of the two limit seats 202 are fixedly connected to the top of the support plate 201. One end of the support rod 203 is rotatably connected to the side wall of the base 1. The other end of the support rod 203 is rotatably connected to the side wall of the limit seat 202. The side wall of the connecting rod 204 is rotatably connected to the side wall of the support rod 203. One end of the pin 205 is embedded in the inside of the connecting rod 204. The support plate 201 is rotatably connected to the bottom of the base 1 through the support rod 203. Pin holes are opened on both side walls of the base 1. The pins 205 are engaged with the pin holes. A number of limit columns are installed between the base 1 and the support plate 201. The limit columns limit the lifting and lowering of the base 1 to prevent the base 1 from tilting to the side.

[0088] As can be seen from the above, when the overall height of the box body 3 is low, the pin 205 is pulled to make one end of the pin 205 away from the pin hole. At this time, the box body 3 is lifted, and the box body 3 drives the support rod 203 to move up. At this time, the support rod 203 is limited by the base 1 and rotates around the limit seat 202. At the same time, the connecting rod 204 rotates along the side wall of the support rod 203, and the embedding groove outside the connecting rod 204 moves synchronously, and the position of the embedding groove corresponds to the pin hole. By pushing the pin 205, one end of the pin 205 is embedded in the inside of the base 1 through the connecting rod 204, thereby achieving a fixing effect on the connecting rod 204 and the support rod 203, so that there is a distance between the support plate 201 and the base 1, thereby achieving a height adjustment effect on the box body 3.

[0089] Embodiment 3: This embodiment is basically the same as the previous embodiment, with the difference that the folding rod 8 is hinged in the groove on the top surface of the side wall of the box body 3, and the other end of the folding rod 8 is hinged to the fixed seat 7; when the box door 5 is opened, the folding rod 8 is driven to move, so that the folding rod 8 rotates as a whole, the folding rod 8 is in a parallel state, and the box body 3 and the box door 5 are in a vertical state.

[0090] As can be seen from the above, by rotating the door 5 to an open state, the folding rod 8 is automatically unfolded, so that the folding rods 8 on both sides support the door 5. The maximum angle of the folding rod 8 is 180 degrees, ensuring the overall stability of the door 5 and reducing the shaking of the door 5.

[0091] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A portable brain function assessment instrument, characterized in that: include: A base (1), a box body (3) is arranged on the top of the base (1), a box door (5) is arranged on the top of the box body (3), a plurality of fixing seats (7) are arranged on the bottom surface of the box door (5), a folding rod (8) is hinged on the fixing seat (7), a movable plate (11) is slidably mounted on the front end surface of the box body (3), and a display screen (10) is mounted on the bottom surface of the box door (5); A detection mechanism (9), the detection mechanism (9) comprising a connecting plate (901), a brain function meter (902) being installed on the surface of the connecting plate (901), a spring (903) being arranged at the bottom of the connecting plate (901), a fixing plate (906) being arranged on the inner wall of the box (3), a blood pressure detection belt (905) being placed on the inner surface of the box (3), a placement plate (904) being arranged on the upper surface of the connecting plate (901), a plurality of recording electrodes (908) being arranged on the top of the placement plate (904), and a signal amplifier being built into the recording electrodes (908); The brain function instrument (902) comprises a signal acquisition module, a signal processing module, a data analysis module, a data storage and management module and a user interaction module.

2. A portable brain function assessment instrument as claimed in claim 1, characterized in that: The signal acquisition module comprises a recording electrode unit, a blood pressure detection unit and a video acquisition unit, the recording electrode unit is a recording electrode (908), the blood pressure detection unit is a blood pressure detection belt (905), and the video acquisition unit is a camera (6); The signal processing module includes a signal amplification module, a filtering submodule, and an analog-to-digital conversion submodule; The data analysis module includes a spectrum analysis submodule, a feature extraction submodule, and a pattern recognition submodule; The data storage and management module stores the raw data, processed data and analysis results collected by the brain function instrument (902); and performs management operations on the stored data, including data entry, modification, deletion, backup, recovery and data authority management; The user interaction module displays the detection data, analysis results and operation prompt information of the brain function instrument (902) on the display screen (10), and performs interactive control through the display screen (10).

3. A portable brain function assessment instrument as claimed in claim 2, characterized in that: The fixing plate (906) is fixedly connected to the inner wall of the box body (3), a plurality of springs (903) are provided, and the plurality of springs (903) are fixedly connected to the inner wall of the box body (3), the connecting plate (901) is slidably connected to the inner wall of the box body (3) through the springs (903), the blood pressure detection belt (905) is placed inside the box body (3), the bottom of the brain function instrument (902) is fixedly connected to the top of the connecting plate (901), the bottom of the placement plate (904) is fixedly connected to the top of the connecting plate (901), the recording electrode (908) is clamped on the peripheral side of the placement plate (904), and a lower pressure column (907) is fixedly installed on the upper surface of the placement plate (904), and the position of the lower pressure column (907) corresponds to the box door (5).

4. A portable brain function assessment instrument as claimed in claim 2, characterized in that: The movable plate (11) is hinged at the front end cavity of the box body (3), the box door (5) is rotatably connected to the side wall of the box body (3), the side wall of the box body (3) is provided with a handle (4), and the side wall of the handle (4) is rotatably connected to the side wall of the box body (3), and the camera (6) is fixed to the upper surface of the box door (5).

5. A portable brain function assessment instrument as claimed in claim 1, characterized in that: An adjustment mechanism (2) is provided at the bottom of the base (1), and the adjustment mechanism (2) comprises a support plate (201), a limit seat (202) is installed on the upper surface of the support plate (201), a support rod (203) is provided on the side wall of the limit seat (202), a connecting rod (204) is provided on the side wall of the support rod (203), and a pin (205) is provided in the connecting rod (204).

6. A portable brain function assessment instrument as claimed in claim 5, characterized in that: The limiting seat (202) and the supporting rod (203) are both provided with two, the side walls of the two limiting seats (202) are fixedly connected to the top of the supporting plate (201), one end of the supporting rod (203) is rotatably connected to the side wall of the base (1), the other end of the supporting rod (203) is rotatably connected to the side wall of the limiting seat (202), the side wall of the connecting rod (204) is rotatably connected to the side wall of the supporting rod (203), one end of the pin (205) is embedded in the inside of the connecting rod (204), the supporting plate (201) is rotatably connected to the bottom of the base (1) through the supporting rod (203), and pin holes are provided on both side walls of the base (1), and the pin (205) is engaged with the pin holes.

7. A portable brain function assessment instrument as claimed in claim 1, characterized in that: The folding rod (8) is hinged in a groove on the top surface of the side wall of the box body (3), and the other end of the folding rod (8) is hinged to the fixing seat (7).

8. A method for using a portable brain function assessor, used in conjunction with a portable brain function assessor according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: Open the box by turning the door, and take out the blood pressure detection belt and recording electrodes from the box; S2: By fixing the blood pressure monitoring belt on the patient's arm, aiming the camera at the patient's face, and fitting the recording electrodes closely to the scalp, signal interference can be reduced; S3: Start the data collection program, pre-process the collected raw data, use data analysis software to conduct in-depth analysis on the pre-processed data, extract characteristic information related to brain function, and write a brain function assessment report based on the data analysis results; S4: After the test is completed, the recording electrodes on the patient's scalp are removed and placed inside the box. At the same time, the blood pressure detection belt is collected and placed inside the box to achieve the patient's brain evaluation effect.

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