基于单片机的便携式医用液体恒温箱的设计与研制

摘要

目的：研制一种携带方便、价格低廉的医用液体加热保温装置，用于医用液体的加热及恒温保存。方法：采用单片机系统对温度进行控制，设定好温度后温度传感器实时采集并显示箱内温度，当温度低于设定值时加热模块启动，达到设定值后停止加热。结果：使用校准的水银温度计检验恒温箱的温度控制效果显示，恒温箱设置的温度值与水银温度计的指示温度数据无明显差异，恒温箱温度控制效果良好。结论：便携式医用液体恒温箱温度控制精确，分辨率高，温度波动幅度小，能够满足临床需要，具有一定的临床推广价值。%Objective:Some medical liquid needs to be heated to the human body temperature, so the constant temperature case is a necessary equipment. But the common constant temperature case is often bulky, inconvenient application and the price is very high, so this paper is mainly to develop a convenient and cheap thermostat device for medical liquid heating.Methods:The system used single-chip microcomputer for temperature control. The temperature sensor collected and displayed the temperature of the box when the temperature was set up. Then the heating module started when the temperature was lower than the set point, and stopped heating when reaching to the set point.Results: The temperature control effect of constant temperature case tested by calibrated mercury thermometer, the temperature of constant temperature case was not significantly different from that of mercury thermometer.Conclusion: The portable constant temperature case for medical liquid have the characteristics of precise temperature control, high temperature resolution, and small temperature fluctuations. It can meet the clinical needs and be worth to popularizing in clinical applications.