目的:探讨在医院内使用一项国家实用新型专利即医用键盘保护套对医务人员手细菌种类和菌落计数的影响.方法:选取2019年1月至2021年5月自贡市第四人民医院部分病区医务人员手细菌种类和菌落计数.设置分组,即对照组、键盘套1组、键盘套2组.对照组采用不使用任何键盘保护套;键盘套1组采用使用市面上单层覆盖式的键盘套;键盘套2组使用本研究医用键盘保护套.结果:干预后,对照组、键盘套1组、键盘套2组医务人员手菌落计数均明显低于干预前,进一步组间比较,键盘套1组、键盘套2组医务人员手菌落计数均显著低于对照组,差异有统“,”Objective: explore the effect of using a new patent of medical keyboard cover in hospital on bacterial species and colony count of hands of medical staff. Methods: from January 2019 to May 2019, the bacterial species and colony count of hand of medical staff in some wards of Zigong Fourth People\'\'s Hospital were selected. Set up grouping, namely control group, Keyboard Cover 1 group, keyboard cover 2 groups. The Control Group did not use any keyboard cover, the keyboard cover 1 group used the single-layer cover type keyboard cover, and the keyboard cover 2 group used the medical keyboard cover. Results: After the intervention, the bacterial count of the hands of the medical staff in the control group, the keyboard cover group 1 and the keyboard cover group 2 were significantly lower than that before the intervention, the colony count of hands of medical staff in Keyboard Cover 1 group and Keyboard Cover 2 group was significantly lower than that of Control Group (P & Lt; 0.05) , the colony count of hand in Keyboard Cover Group 2 was significantly lower than that in keyboard cover group 1(P & Lt; 0.05) . After the intervention, none of the bacteria such as coagulase negative staphylococcus, enterobacter Cloacae, enterococcus and Proteus were found in the hands of the medical staff, and acinetobacter Bowman accounted for 14％ . Conclusion: The use of a national utility model patent, namely, the medical keyboard protective cover, is effective in preventing bacterial contamination, and is worthy of popularization and application.