Describes the design principle and the application of the drop recorder for the transfusion amount, which can display the number of drops on LCD in the treatment process for patients in hospital. 介绍了在医院为病人输液治疗过程中,对输液液滴数进行计数并显示的输液液滴计数器的设计原理和应用。
Two electrodes of drop recorder were fixed in an injector of 20 ml. The input tube, output tube and resistance tube were all made of plastic material. 取一个20ml注射器,其内固定两个电极,用塑料管加工成出、入液管和阻力管。