摘要： 目前临床主要由人工统计输液速度,迫切需要简便且实用的监测装置。通过电极针将输液液滴转换成脉冲信号,以C8051F236高速片上系统单片机为核心组成输液滴速监视器,仪器由脉冲检测、键盘、液晶显示、操作指示和声光报警等单元组成。经试验其计数准确、运行可靠,且成本低、体积小、功耗少、操作方便。

关键词: 输液滴速, 监视器, 高速片上系统, 电极针

Abstract: Transfusion speed in clinical therapy is measured mostly by manual work, simple and practical on-line monitors are urgently needed.The transfusion drops is transformed into pulse signals through two acicular electrodes. Core part of the transfusion speed monitor is C8051F236system-on-a-chip (SOC), and the monitor consists of several cells such as pulse detection, keyboard, liquid crystal display, manipulate indication,and sound-light alarm. Experiments demonstrate that the monitor has the merits of accurate counting, reliable function, low cost, small volume, lowpower dissipation, and easy handling.

中图分类号: 

• TH772.2