一种纯机械式无电源的输液泵动力源

摘要

Objective To develop a kind of power supply to drive mechanical infusion pump without electric power.Methods Through energy source comparison of gas,magnetic field and spring,using spring as storage to design a timer with no fixed periodic escapement which could ensure stable output at a constant speed and drive peristaltic pump head of infusion pump.Results Instead of driving pump head by traditional motors,the spring timer stores energy and the energy will be released at a constant speed by storage agency.Conclusion Compared with gas source,magnetic field,spring as power source has advantages such as easy controlling,simple maintenance,heat-resisting and better corrosion resistance.%目的 设计一种动力源,驱动纯机械式无电源输液泵.方法 通过气源、磁场、发条三种能量动力源的比较,采用发条作为储能媒介,设计发条定时器；通过无固有周期擒纵调速器,保证发条匀速稳定输出,带动输液泵蠕动泵头的转动.结果 发条定时器储能、释放能量驱动匀速机匀速运输,取代传统电机驱动蠕动泵头.结论 与气源、磁场相比较,发条作为动力源具有易控制、维护简单、耐热、耐腐蚀等优点.