本装置用微处理机控制,采用信号平均法,在128个心动周期内从体表获得清楚的希氏束电图,并能同时显示(或记录)平均心电图。该装置具有几个特点:特定的数字滤稳器有效地抑制50Hz 工频干扰,不用屏蔽室便可从体表检测到 H 波。系统内设置的模块能自动选择心律相近的心功周期,使平均处理后的希氏束电图清晰度提高、实验结果表明,它是一种临床上有用的非创伤性检查手段。 The device is microprocessor controlled and uses signal averaging to obtain a clear His bundle diagram from the surface during 128 cardiac cycles and to display (or record) the mean ECG simultaneously. The device has several features: a specific digital filter to effectively inhibit 50Hz frequency interference, no shielded room can be detected from the body surface H wave. The modules set in the system can automatically select the heart rhythm similar to the heart cycle, the average treatment of His bundle enhanced the clarity of the test results show that it is a clinically useful non-invasive examination means.