Human body simulation and calibration device of oscilloscope electronic sphygmomanometer

Abstract

The invention relates to a human body simulation and calibration device of an oscilloscope electronic sphygmomanometer. The device comprises a pressure vessel assembly, wherein the pressure vessel assembly is connected with the electronic sphygmomanometer, the output end of the pressure vessel assembly is connected with a control and processing assembly, the control and processing assembly is connected with a power amplifying assembly, and the power amplifying assembly is connected with the driving end of the pressure vessel assembly. The detected pressure value is transmitted into the control and processing assembly by the pressure vessel assembly, and the control and processing assembly controls the power amplifying assembly to generate a power amplifying driving signal according to the pressure value of the pressure vessel assembly, so as to simulate and generate the pulse wave in the pressure vessel assembly through the power amplifying driving signal. The control and processing assembly determines the systolic pressure Ps and diastolic pressure Pd of the electronic sphygmomanometer connected with the pressure vessel assembly according to a pressure signal with the pulse wave generated by the pressure vessel assembly. The device has the advantages that the structure is compact, the oscilloscope electronic sphygmomanometer can be calibrated, the calibration precision is high, the calibration operation is convenient, the applicable range is wide, and the safety and the reliability are realized.

Description

technical field [0001] The invention relates to a calibration device, in particular to a human body simulation calibration device for an oscillometric electronic sphygmomanometer, belonging to the technical field of sphygmomanometer calibration. Background technique [0002] Blood pressure is an important parameter that reflects the function of the human circulatory system. It is the pressure that blood exerts on the wall of the blood vessel when it flows in the blood vessel. As an important physiological parameter of the human body, blood pressure can reflect the function of the human heart and blood vessels, so it has become a clinical diagnosis It is an important basis for observing the treatment effect and making prognosis judgment. [0003] Blood pressure measurement methods can be divided into invasive measurement methods and non-invasive measurement methods. The most commonly used non-invasive measurement methods are the Auscultatory method and the Oscillometric meth...

AI Technical Summary

Problems solved by technology

However, the auscultation method has its inherent shortcomings: first, there has been a debate on whether the diastolic pressure corresponds to the fourth phase or the fifth phase, and the resulting discriminative error is very large

The second is to judge the systolic and diastolic blood pressure by listening to the Korotkoff sound. The reading is affected by a series of factors such as the user's emotion, hearing, environmental noise, and the nervousness of the testee, and it is easy to introduce subjective errors.

The inherent disadvantage of the oscillometric method is that there is no standardized algorithm, and most of them are based on statistical laws rather than individual characteristics, so it is impossible to obtain measurement results consistent with the Korotkoff sound auscultation method

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