论文部分内容阅读
在临床工作中,应用普通心电图机较难捕捉一过性短暂的心电变化。我校于1988年底研制出“袖珍式适时心电记录仪”(见封3),具有捕捉一过性心电图变化的功能,是目前较理想的便携式适时心电记录装置。现将临床70例研究情况总结如下,并进行评价。一、仪器工作原理由模拟电路放大的心电信号,经A/D转换电路,送入存贮器,在时针电路和控制电路作用下,自动存贮40s心电信号,然后经录放转换开关转变为回放形式,将存贮信号经D/A转换后,经滤波电路回放出来,供普通心电图机记录。二、使用方法 (1)按要求的位置处理干净皮肤,将一次性电极贴上,用导联线连接电极和仪器
In clinical work, the application of ordinary ECG more difficult to capture transient transient ECG changes. Our school at the end of 1988 to develop “pocket-sized timely ECG recorder ” (see cover 3), with the capture of a transient ECG changes in function, is now the ideal portable portable ECG device. 70 cases of clinical research are summarized below, and evaluation. First, the working principle of the instrument Enlarged by the analog circuit ECG signal, the A / D conversion circuit, into the memory, the clock circuit and the control circuit under the action of automatic storage of 40s ECG signal, and then change the switch recording and playback For the playback form, the signal will be stored after D / A conversion, the filter circuit is played back for the ordinary ECG machine record. Second, the use of methods (1) according to the requirements of the location of clean skin, the disposable electrodes affixed, with leads to connect the electrodes and instruments