随着医用电子仪器、尤以各类心脏电子仪器在医疗中的广泛应用,安全用电的问题愈来愈重要,它不仅是确保病人的安全,也是确保仪器安全所必需。近年来,我院出现过程度不同的电击病人与工作人员的事例,也出现过电击损害仪器设备的事例,这些都应引起我们足够的重视。大电流电击和微电流电击发生电击,引起心室颤动,是由于有电流通过了心脏。在确定能否引起心室颤动的阈值时,用电流值表示比用电压值表示更为确切。例如:两个人同样误触220伏交流电,可能一人遭电击,另一人则安然无事,这由两个人身体通过的申流不同而定。假如有50 With the widespread use of medical electronic devices, especially various kinds of cardiac electronic devices in medical treatment, the problem of safe power supply is more and more important. It not only ensures patient safety but also ensures the safety of the instrument. In recent years, there have been cases of electric shock patients and staff members in our hospital that have different degrees, and there have also been instances of electric shocks damaging equipment and equipment. All of these should arouse enough attention from us. High-current shock and micro-current shock electric shock, causing ventricular fibrillation, is due to the current through the heart. In determining the threshold value that can cause ventricular fibrillation, it is more accurate to represent the current value than to use the voltage value. For example, if two people mistakenly touch 220-volt AC, one person may be struck by a shock, and the other is safe and sound, depending on the flow of two people’s bodies. If there is 50