MadLab Medical Signal Acquisition and Processing System Introduction: The MadLab bioinformatics medical signal acquisition and processing system is an upgraded product developed based on our company's MadLab-4c. This type of product summarizes the advantages and disadvantages of the original product, using the latest highly integrated chips, which greatly improves the system performance. Better achieve the technological intelligence of informationized biological teaching systems, facilitate the conduct of more than 120 routine experiments in physiology, pharmacology, and pathology, and improve teaching efficiency. Technical parameters: Hardware parameters: 1. The instrument is compact and adopts an integrated anti-interference power supply, with an AC power supply of 220V. Apart from the built-in transformer in the chassis, there is no need to connect any external transformer to ensure that the instrument can display clear and accurate bioelectrical signals without the need for any external grounding wires during any bioelectrical experiments. So as to ensure the anti-interference performance and accuracy of the machine. Patient leakage current<3mA. 2. The instrument has 4 channels, all of which are multifunctional fully controlled isolation amplifiers. Each channel's amplifier can be used as a bioelectric amplifier, blood pressure amplifier, bridge amplifier, and can also be used as a spirometer, thermometer, etc. And each channel has independent hardware modules, which are independent of each other, greatly increasing the anti-interference ability between channels, and also bringing great convenience to instrument maintenance and repair. 3. Adopting high-precision 16 bit A/D conversion chip, the maximum sampling rate of single channel hardware is 1000KHz. The minimum hardware sampling rate is 0.01Hz. The maximum sampling frequency for four channel continuous sampling is 100kHz, and the sampling rate can be changed as needed during real-time sampling. Scanning speed: 0.05ms/div~3200s/div. 4. Amplifier input resistance ≥ 100M Ω (dual input) and 50M Ω (single input), common mode suppression ratio ≥ 100dB, noise ≤ ± 1 μ V (RMS) or ≤ ± 3 μ V (P-P). Frequency response: DC~20kHz. Input range: 5 μ V~500mV. Sensitivity: a) Bioelectric mode: 20uV/div~500mV/divb) Blood pressure mode 3.6-360 (mmHg/div) 0.36-180 (mmHg/div) (High sensitivity transducer) 5. Both AC and DC have the same gain: adjustable ranges of 500mv, 200mv, 100mv, 50mv, 20mv, 10mv, 5mv, 2mv, 1mv, 500uV, 200uV, 100uV, 50uV, 20uV, and 10uV; Can directly input 10V electrical signals while the amplifier is not saturated. 6. Low pass filtering (hardware): 0.3 Hz, 3 Hz, 10Hz, 30Hz, 100Hz, 500Hz, 1kHz, 3kHz, 10 kHz, OFF (20kHz). Having a filtering method of more than 5th order. 7. Time constant (hardware): 0.001s, 0.002s, 0.02s, 0.2s, 1s, 5s, DC. 8. The main technical requirements of the photoelectric isolation programmable stimulator include single stimulus, series single stimulus, continuous single stimulus, double stimulus, series double stimulus, continuous double stimulus, timed stimulus, intensity increasing stimulus, frequency increasing stimulus, wave width increasing stimulus, strong interval increasing stimulus, automatic series double stimulus and other stimulation modes. Maximum load current: 100 mA, with positive and negative current output modes, programmable to output shock waves such as triangular waves and sine waves. Meets national standards for safe electrical use in experiments, and will not cause electric shock due to misoperation. Output voltage<=50V to meet national safety electricity standards (external synchronous stimulators can also reach 120V). 9. Digital filtering mode: 1) Adjustable high pass, low-pass, bandpass, and bandstop filtering parameters. 2) Zero phase shifted digital filtering with adjustable order. 10. The hardware system includes an ECG full lead lead card, and each channel can be used for 12 different lead modes of electrocardiogram. The lead switching mode can be programmed, and there are a total of 12 lead modes: I, II, III aVR、 aVL、 aVF、V1、 V2、V3、V4、V5、V6。 11. The experimental environment data detection function measures and adds the current experimental environment temperature, atmospheric pressure, and humidity as environmental parameters for instrument experiments in the experimental information. The instrument panel is equipped with a 1-inch OLED LCD screen to display the current experimental environment information. 13. Each channel has an automatic sensor recognition function, which is displayed on the instrument panel LCD screen. The software also recognizes and prompts the user to automatically set the corresponding sensor parameters. 14. Multiple (unlimited) software windows can be opened simultaneously to invert and analyze multiple experimental data waveforms. 15. It can be equipped with a medical network management teaching system for networked laboratory teaching. Software parameters: 1. The software displays a variable number of channels: 1 to 64 channels; (Physical channel simulation channel can be changed at any time) 2. Simultaneously invert the number of files: 4 (multiple files can be opened simultaneously for inversion); 3. Simultaneous sampling and inversion: During the real-time signal acquisition process, previously recorded files can be opened simultaneously for viewing, comparing, analyzing, and other operations; 4. When inverting files, the signal sound can be played while playing the inverted waveform, such as playing the sound of decompression nerve discharge; 5. Channel differentiation sampling rate: Different channels can set different sampling rates for data sampling, and signals with different sampling rates can be synchronously recorded and displayed; 6. File list window: Users can directly click on the list file to open the inversion file; 7. Floating quick start window: Users can directly start and stop experiments for convenient operation; 8. Software appearance: can be changed by the user, and can open or hide windows such as information display, stimulation, quick start, file list, etc. All windows can be moved within the screen range; 9. Online experimental report editing: Online experimental report editing function; 10. Experimental report, data upload and download (equipped with MadLab bioinformatics multimedia teaching software) 11. The software experiment module is embedded with electronic textbooks: including experimental objectives and principles, experimental subjects, experimental equipment and drugs, experimental steps and observation items, precautions, thinking questions, and regular experimental operation videos; 12. Exhibition of professional experimental knowledge: Various professional experimental skills can be displayed in the form of Flash files and streaming media; 13. The software is directly connected to the virtual simulation experiment center (users need to configure the virtual experiment simulation center): to showcase more experimental knowledge to students; 14. Automatic software upgrade function: The software automatically searches for the latest version of software on the server and reminds the user to upgrade. After the user confirms, the software can be automatically upgraded, making it easy for the user to quickly upgrade the software; 15. Automatic collection of user opinions: The software includes a window for collecting user opinions, and any input from users can be directly transmitted to the software developer for system improvement; 16. Video monitoring function: including video monitoring function; 17. Support waveform data export function, which can be opened by software such as Matlab, Spss, Sas, etc. Customizable open data interface for secondary software development. Users can write their own software to collect, record, and analyze experimental waveform data. 18. Support external stimulus capture module and synchronized display with blood pressure and oxygen monitoring device. Synchronous video display and recording of microcirculation; And can be used in conjunction with video teaching systems. Synchronize recording of physiological signals and video signals, and support synchronous playback. 19. It has data analysis functions such as integration, differentiation, frequency histograms, sequence/non sequence density histograms, and two-dimensional and three-dimensional spectrum analysis. 20. Software integration specialized pharmacological analysis toolbox, integrating various pharmacological analysis tools, such as PA2 calculation, LD50 calculation completed using Bliss method, t-test calculation, regression analysis, etc. Equipped with automatic electrocardiogram statistical analysis function. Capable of analyzing heart rate variability (HRV). Equipped with specialized measurement and analysis functions for myocardial cell action potential, LTP, EEG, cellular and neural discharges. Equipped with dynamic automatic measurement functions such as electrocardiogram, blood pressure, intraventricular pressure, pulse, and respiration. Can perform quantitative respiratory flow measurement and respiratory mechanics index measurement, and can also perform human lung ventilation measurement. 21. The supporting software can automatically update the software online; Equipped with the function of counting the number and time of instrument usage. Automatically collect user feedback online and promptly resolve user issues. The software can be paired with an English version and is suitable for foreign education. Having a contextual help system. 22. The software has a split oscilloscope function (i.e. left view function), which is used to observe the recorded waveforms at any time during the recording process and align them for relevant data analysis. 23. Windows traditional software interface, software compatible with all 64 bit and 32-bit operating systems.
Introduction: The MadLab bioinformatics medical signal acquisition and processing system is an upgraded product developed based on our company's MadLab-4c. This type of product summarizes the advantages and disadvantages of the original product, using the latest highly integrated chips, which greatly improves the system performance. Better achieve the technological intelligence of informationized biological teaching systems, facilitate the conduct of more than 120 routine experiments in physiology, pharmacology, and pathology, and improve teaching efficiency.
