不同终末漂洗方法对软式内镜残留戊二醛清除效果的研究

Effects of different terminal rinsing methods on removal of glutaraldehyde residuals on flexible endoscopes

目的探讨内镜经戊二醛浸泡消毒后,检测不同终末漂洗方法残留的消毒剂浓度,为使用内镜提供依据。方法选取2015年3月-2015年6月期间消化内镜共36条;空白对照组内镜不浸泡戊二醛,直接用过滤水进行漂洗;干预组使用2%碱性戊二醛浸泡消毒内镜10min,依据终末漂洗方法分为单股水流组、喷淋式清洗槽组、自动清洗消毒机组进行清洗,每组分为1.0min、2.0min、3.0min共3个水平。结果不同终末漂洗方法内镜外表面戊二醛残留的差异有统计学意义(P<0.05)。结论自动清洗机和喷淋式内镜清洗槽清洗3min对戊二醛的清除效果较好,适合临床实践应用。采用喷淋式内镜清洗槽更为节约清洗成本,适用于基层医院推广应用。

OBJECTIVE To detect the concentration of glutaraldehyde residuals on endoscopes by using different terminal rinsing methods so as to provide guidance for use of endoscopes. METHODS From Mar 2015 to June 2015, a total of 36 gastrointestinal endoscopes were enrolled in the study. The blank control group was not treated with glutaraldehyde rinsing but was treated with direct rinsing with filtered water; the intervention group was treated with 2% alkaline glutaraldehyde rinsing for 10 rain. The study objects were divided into the single stream water group, spraying cleaning tank group, and the automated cleaning and disinfection machine group according to the terminal rinsing methods; each group was divided into three levels： 1. 0min, 2. 0min, and 3. 0min. RESULTS There was significant difference in the concentration of glutaraldehyde residuals on surfaces of endo- scopes among the different terminal rinsing methods （P〈0.05）. CONCLUSION The automated cleaning machine and spraying cleaning tank can achieve significant effect on removal of glutaraldehyde when they are used for 3 min, which are suitable for clinical practice. The spraying cleaning tank is more beneficial in saving cleaning cost and is worthy to be promoted in grass-roots hospitals.