医用氧疗湿化系统的清洗消毒方法改进

The Improvement of the Cleaning and Disinfection Method for Medical Oxygen Wet System

目的探讨医院各科室氧疗湿化系统清洗消毒方法存在的不足,采取改进措施,减少污染。方法设常规组、观察组,两组湿化瓶均用流动水冲洗后,放入500 mg/L有效氯溶液的加盖容器中浸泡30 min,常规组用蒸馏水冲洗、晾干、包装,湿化液用蒸馏水;而观察组将湿化瓶放入65℃的烘箱内烘60 min,湿化液改用瓶装灭菌水,然后对消毒后的氧气湿化瓶和湿化液采取分期抽样检测并进行对比。结果湿化瓶细菌污染件数常规组为19.17%、观察组为0.83%,两者比较差异有统计学意义(P<0.01),湿化液细菌污染率常规组为21.57%、观察组为1.96%,两者比较差异有统计学意义(P<0.01)。结论湿化瓶清洗消毒后加用烘箱进行干燥处理,可明显降低氧疗湿化系统细菌污染,有效控制医院感染的发生。

OBJECTIVE To evaluate the shortcomings of the cleaning and disinfection method for medical oxygen wet system in hospital, and take corrective measures, and reduce the pollution. METHODS One hundred and twenty humidification bottles were divided into control and treated groups. After cleaning the humid bottles in both groups, the bottles were immersed in chlorine-containing 500 mg/L solution for 30 minute and were rinsed with distilled water, then the bottles in control group were dried for use. The treated group were dried by drying oven（65 ℃） for 60 minute. The humidification fluids in control group was distilled water,and in the treated group was sterilizing water. Samples in both groups were taken samples after cleaning and disinfection. RESULTS The contamination rate of the humidi bottles in the treated group was 0.83% ,and in control group was 19.17%, and there was significant difference between them. The contamination rate of the humidification fluids in the treated group was 1.96%, and in control group was 21. 57%, and there was significant difference between them （P〈0.01）. CONCLUSIONS After cleaning and disinfection the humid bottles are dried by drying oven. The method can significantly degrade the contamination rate of oxygen wet system, and effectively control the occurrence of hospital infection.