一种智能加温加压输液装置的设计与研发

Design and Development of an Intelligent Heating Pressure Infusion Device

目的设计并研发一种智能加温加压输液装置,实现输液加温加压一体化,以提高输液治疗效率和患者救治成功率。方法智能加温加压输液装置由囊袋和控制盒两部分组成,通过硬件设计和软件编程,主控单元以STM32F103C8微控制器为核心,采用隔膜泵实现对囊袋的加压,温度控制采用比例-积分-微分控制器闭环控制模式实现,并采用自制的加温模块提高加温效率,采用两节锂电池专用充电管理芯片,通过光电传感器实现液位报警。结果智能加温加压输液装置测试结果显示性能良好,在液体输注过程中可维持液体温度,并可持续加温;压力范围为150~300 mmHg,通过按压压力控制按钮和压力大小调节按钮进行选定;电源装置带有蓄电功能,可储存8~10 h的电量;液体剩余量报警装置可进行有效报警提示。结论本研究设计和研发的智能加温加压输液装置,具有简易便携、加温加压一体化、动态监测液体剩余量、有效防止空气栓塞等优点,不仅可以快速补充循环血容量,降低并发症的发生率,有效提高抢救成功率,而且操作简便,医护人员经过培训即可掌握其使用方法,适用于急诊、手术室、重症监护病房等临床科室。

Objective To design and develop an intelligent heating and pressurizing infusion device,realize the integration of heating and pressurizing infusion,significantly improve the efficiency of infusion treatment,and improve the success rate of treatment of patients.Methods The intelligent heating and pressure infusion device was composed of two parts:pocket and control box.Through hardware design and software programming,the main control unit took STM32F103C8 micro-controller as the core,adopted diaphragm pump to realize the pressure on the pocket.The temperature control was realized by the closed-loop control mode of the proportion integration differentiation controller,and the self-made heating module was used to improve the heating efficiency.Two lithium battery special charging management chips were used to realize the liquid level alarm through the photoelectric sensor.Results The test results of the intelligent heating and pressure infusion device showed good performance,which could maintain the liquid temperature and keep the temperature continuously during the liquid infusion.The pressure range was 150-300 mmHg,which was selected by pressing the pressure control button and the pressure adjustment button.The power supply device had the function of electric storage,which could store 8-10 h of electricity.The alarm device of liquid surplus could achieve an effective alarm.Conclusion The intelligent heating and pressurizing infusion device designed and developed in this study has the advantages of simple and portable,integrated heating and pressurizing,dynamic monitoring of liquid surplus,effective prevention of air embolism,etc.Which can not only quickly replenish circulating blood volume,reduce the occurrence of complications in patients,effectively improve the success rate of rescue,but also easy to operate,medical staff can master its use method with a little training.It is suitable for emergency,operating room,intensive care unit and other clinical departments.