ECG signal is a synthetic reflection of the heart electricity on body surface. It has important significance to the diagnosis of heart disease by clinical ECGexamination.
心电信号是心脏电活动在体表的综合反映，临床心电图检查，对于检测和诊断心脏疾病具有重要意义。
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Being the symbol of the most advanced instrument of ECGexamination, ECG workstation market popularization is not high, and there are not products with complete intellectual property rights inland.
Methods: By using of the simulated teaching equipments of the clinical skills training center, the 394 interns were trained in physical examination, surgical basic skills, ECG and CPR skills.