Non-invasive blood pressure simulation system and implementation method thereof

Abstract

The invention particularly relates to a non-invasive blood pressure simulation system and an implementation method thereof. The non-invasive blood pressure simulation system comprises a microprocessor module, an air cylinder, a position sensor, a pressure sensor, a temperature sensor, an air outlet pipe, an inner blood pressure cuff and a pressure port, wherein the microprocessor module is used for outputting a pressure waveform signal to a stepping motor; the volume of the air cylinder is not more than 20 cc; the air outlet pipe is connected with the atmosphere through a first electromagnetic valve; the inner blood pressure cuff is connected with the air cylinder through a second electromagnetic valve; and the pressure port connected with a blood pressure meter is arranged on the air cylinder. The instrument provided by the invention can be used for detecting and correcting the blood pressure meter which applies an oscillography principle through an electronic technology and producing or researching and developing the oscillography non-invasive blood pressure meter; compared with the prior art, because the quantity value conversion device of the simulation instrument is high in efficiency, precise and is unnecessary to maintain for a long time, the simulation instrument has the characteristics of good repetitiveness, accuracy and long-time stability in operation; and compared with the traditional non-invasive blood pressure simulation device, the simulation instrument increases multiple detection functions, thereby achieving various simulation parameters and overall detection functions.

Description

technical field [0001] The invention belongs to the field of medical testing equipment, and in particular relates to a non-invasive blood pressure simulation system and its implementation method. The air leakage rate test, overvoltage protection test and static pressure calibration can be performed on the sphygmomanometer through the peripheral air pump and solenoid valve module, and the device is designed There are internal standard cylinder simulation cuffs to further improve simulation consistency. Background technique [0002] With the acceleration of the pace of modern life and the change of lifestyle, people pay more and more attention to health. As an important health indicator, blood pressure has been widely used and recognized. Blood pressure has become an important basis for clinical diagnosis of diseases, observation of treatment effects, and judgment of prognosis. Blood pressure measurement can be realized by direct and indirect methods. The direct method is an ...

AI Technical Summary

Problems solved by technology

In the scheme of simulating the human arm, the transmission device used is complex, and the artificial muscle layer with artificial blood vessels is generally wrapped by an elastic membrane. Due to the limitations of existing materials, these artificial tissues are difficult to simulate real human tissues, which will cause errors in the measurement of the sphygmomanometer , and most of these devices use static blood pressure simulation, which cannot realize the simulation of different patient states

Another method, such as the patent with the patent publication number CN 202342027 U, is to directly input the simulated pressure fluctuation into the pneumatic system of the sphygmomanometer, although the implementation method of directly inputting the simulated pressure fluctuation into the pneumatic system of the sphygmomanometer , it can be seen from the patent that the control of the servo motor used is complicated and requires a dedicated controller

His transmission device includes connecting shafts, screw rods, screw fixing seats, mobile platforms, pistons, and cylinders. Dust-free, long-term operation is not conducive to its stability and accuracy; and there is no piston position feedback device in this solution, it will not be able to correct the simulation consistency deviation caused by the deviation of the initial position of the piston, and it will not be able to accurately simulate the pulse volume parameters

This solution does not have an automatic inflation and deflation device, and cannot test the performance of the sphygmomanometer such as air tightness and overvoltage protection, and cannot fully detect the sphygmomanometer. Difference

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