Objective To improve the safety and accuracy of high-frequency electric knife.Methods Electrical safety test was conducted by using ES601 and HF-400 high-frequency electric knife detector in strict accordance with testing standards to detect unqualified high-frequency electric knife and analyzed the factors that contribute to the unqualiifed situation.Results Among the factors that contribute to the disqualification, the main cause of the malfunction of the high frequency electric knife is the unqualiifed high frequency.Conclusion The routine maintenance of equipment needs to be strengthened. Different measures are needed to be taken for different situations to improve the safety and passing rate of the equipment.%目的：提高高频电刀临床应用的安全性及准确性。方法采用ES601电气安全检测仪与HF-400高频电刀检测仪，严格按照检测规范对高频电刀进行检测，对不合格原因进行分析。结果不合格的原因有多种，其中高频电流不合格为主要原因。结论加强设备日常的维护保养，针对不同情况采取不同的措施来提高设备的安全性及合格率。
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