内镜中心改良的医用纯化水终端管路在纯化水质量管理中的应用研究  

Application of improved medical purified water terminal pipeline in endoscopic center for purified water quality management

作　　者：吴丹丹 赵梅[1] 佘婷婷[3] 张开光 WU Dan-dan;ZHAO Mei;SHE Ting-ting;ZHANG Kai-guang(Anhui Medical University,Hefei,Anhui 230032,China)

机构地区：[1]安徽医科大学护理学院,安徽合肥230032 [2]中国科学技术大学附属第一医院南区内镜中心,安徽合肥230036 [3]中国科学技术大学附属第一医院南区医院感染管理办公室,安徽合肥230036 [4]中国科学技术大学附属第一医院内镜中心,安徽合肥230001

出　　处：《中华医院感染学杂志》2020年第11期1757-1760,共4页Chinese Journal of Nosocomiology

基　　金：安徽省科技攻关基金资助项目(1604a0802075)。

摘　　要：目的研究内镜中心改良的医用纯化水终端输送管路对纯化水染菌量的影响,探讨改造后的管路消毒间隔时间。方法通过将球阀送水口末端的普通不锈钢软管更换为卫生级304不锈钢管道、将终末漂洗水龙头更换为卫生级隔膜阀、保证终末漂洗供水管路单独与球阀送水口通过304不锈钢卡盘连接等对纯化水终端供应系统进行一系列改造。在终端管路改造前管网消毒次日和改造后管网消毒后次日、第4周、第5周、第6周在总送水口、总回水口、4个球阀送水口、4个终端使用点出水口依次取样,进行微生物培养,计算菌落数。结果改造前后总送水口、总回水口的纯化水染菌量均为0 CFU/100ml,差异无统计学意义;改造前管网消毒次日各终端使用点的纯化水污染严重,改造后均达标,差异具有统计学意义(P均<0.05)。改造后的管网经过消毒,管网消毒次日至第4周期间终端使用点的纯化水菌落计数均为0 CFU/100 ml;第5周、第6周时总送水口及总回水口的纯化水菌落计数均为0 CFU/100 ml,部分终端使用点的纯化水的菌落计数介于0~10 CFU/100 ml之间。结论改造后的终端输送管路能有效降低终端使用点的纯化水的微生物检测细菌总数,均符合内镜终末漂洗用水的要求。为确保终端使用点的纯化水符合内镜终末漂洗用水的要求,需对纯化水管路进行定期消毒,推荐每月消毒一次纯化水管路以保证纯化水的正常使用。OBJECTIVE To investigate the effect of improved medical purified water terminal pipeline in endoscope center on the amount of bacterial contamination in purified water,so as to explore the disinfection interval of the improved pipeline.METHODS Through the replacement of the common stainless steel hose at the end of the ball valve water supply port with the sanitary grade 304 stainless steel pipe,the replacement of the final rinsing faucet with the sanitary grade diaphragm valve,and the guarantee of the separate connection between the final rinsing water supply pipe and the ball valve water supply port through the 304 stainless steel chuck,the purified water terminal supply system were modified.The next day after the pipe network disinfection that before and after the end pipeline reconstruction and the next day,the fourth week,the fifth week and the sixth week after the pipe network disinfection,samples were taken in sequence at the total water supply outlet,the total water return outlet,the four ball valve water supply outlets and the four outlets of the end use points to carry out microbial culture and calculate the number of colonies.RESULTS The bacterial contamination of purified water at the total feeding and return water outlets before and after the transformation was 0 CFU/100 ml,with no significant difference.Purified water at the end-use points of pipe network disinfection before and after the transformation was seriously polluted,and met the standard after the transformation,with significant difference(all P<0.05).After disinfection,the colony counts of purified water at the end-use point of the network were 0 CFU/100 ml from the next day to the fourth week of disinfection.At the fifth and sixth weeks,the colony counts of purified water at the total feeding and return water outlets were 0 CFU/100 ml,and the colony counts of purified water at some end-use points were between 0-10 CFU/100 ml.CONCLUSION The terminal reconstructed pipeline can effectively reduce the total number of bacteria in the purified

关 键 词：内镜中心 纯化水 管路设计 质量 医院感染控制 

分 类 号：R183[医药卫生—流行病学]