Biomedical signal analog instrument

Abstract

The invention relates to a biomedical signal analog instrument which comprises a central processing unit and an analog signal output circuit. The central processing unit is connected with the analog signal output circuit through a single chip machine which comprises a D / A (digital / analog) conversion output. The analog signal output circuit comprises an electrocardiogram data analog circuit, a respiratory data analog circuit, an invasive blood pressure data analog circuit and a body temperature data analog circuit. The biomedical signal analog instrument can be used for adjusting the analog quantity through man-machine conversation according to the difference of human body parameter characteristics, thereby improving the authenticity and the accuracy of the analog signal. The biomedical signal analog instrument has the man-machine interaction function, can realize the electrocardiogram analog and testing, the multi-channel non-invasive blood pressure control, the breathing analog data set and the output of a variety of common temperature, integrates four physiological parameters including electrocardiogram, respiration, body temperature and invasive blood pressure and can be used for testing and performing an experiment in any place where a patient monitor is used.

Description

technical field [0001] The invention belongs to the field of medical instruments, in particular to a biomedical signal simulator. Background technique [0002] At present, the commonly used clinical ECG, respiration, body temperature, and invasive blood pressure measurement data often need to convert their digital signals into analog signals for analysis. It can use fixed high-precision resistors to manually simulate temperature parameters, and can only simulate one or two physiological parameters, without a good human-computer interaction interface. In view of this situation, in order to meet the doctor's desire to obtain the analog value of the measured data and be able to simulate To meet the needs of waveform diagnosis, it is necessary to develop a multifunctional simulator with man-machine dialogue function that can simulate output of various data signals and generate waveform output. Contents of the invention [0003] The object of the present invention is to propos...

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Problems solved by technology

[0002] At present, the commonly used clinical ECG, respiration, body temperature, and invasive blood pressure measurement data often need to convert their digital signals into analog signals for analysis. It can use fixed high-precision resistors to manually simulate temperature parameters, and can only simulate one or two physiological parameters, without a good human-computer interaction interface. In view of this situation, in order to meet the doctor's desire to obtain the analog value of the measured data and be able to simulate To meet the needs of waveform diagnosis, it is necessary to develop a multifunctional simulator with human-machine dialogue function that can simulate output of various data signals and generate waveform output.

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