微机式液晶显示心电图仪的研制

The development of a microcomputer-based ECG grapher on LCD

本文介绍一种以单片微机和液晶屏为主体、用于ECG检测、记录、显示和分标的便携式仪器。可在刷新方式下实时显示ECG信号,并将存贮的20秒信号在随后进行回放、冻结、局部放大显示以及心率、QRS宽度计算结果和直方图分析的图文显示。因电极安装在仪器背面,操作快捷、简便,适用于急救场合及野外救护。

This paper introduces a single chip microcomputer and latticed LCD-based ambulatory ECG grapher,to be used for the testing,recording,displaying and analyzing of ECG.It may display real time ECG in refresh mode,and also signals from memory for 20 seconds in modes of playback,freeze and partial expansion as well as the graphs and characters of heart rate,QRS duration and histograms.Setting electrodes on the back of the instrument makes operation convenient in the case of emergency and field care.