碱性清洁剂在超声清洗机中的作用

Application of alkaline detergent in ultrasonic cleaner

目的探讨碱性清洁剂在半自动超声清洗机中的清洗效果及兼容性,以提高清洗合格率。方法取使用后的手术器械600件随机分两组,试验组采用半自动超声清洗机加STERIS碱性清洁剂(1∶800),对照组为半自动超声清洗机中加酶清洁剂(1∶270),清洗结束后取出观察清洗效果;兼容性试验为STERIS碱性清洁剂40ml加入20L水中(1∶500),将100把手术剪浸泡在液面下,常水浸泡作为阴性对照,于48、96、168h取出观察。结果清洗试验中试验组合格率为84.0%,对照组合格率54.7%;兼容性试验,试验组阳性率为1.0%,对照组阳性率在3个观察时间分别为2.0%、5.0%和18.0%,两组比较浸泡168h时差异有统计学意义。结论碱性清洁剂对器械无损伤,用于半自动超声清洗机中的清洗效果比酶清洁剂更好。

OBJECTIVE To explore the cleaning efficacy and compatibility of alkaline detergent used in semi-automatic ultrasonic cleaner so as to improve the qualified rate of cleaning.METHODS For cleaning efficacy,600 surgical instruments after operation were divided into two groups randomly,300 pieces of instruments were cleaned in ultrasonic cleaner with STERIS alkaline detergent in the experiment group,while in the control group enzymatic detergent was used;for the compatibility,200 pieces of scissors were divided into two groups randomly,100 pieces were dipped into 20L water with alkaline detergent 40ml（the dilution rate was 1：500,while in control group 100 pieces scissors were dipped in water on tap,the instruments were observed after 48 hours,96 hours and 168 hours.RESULTS The qualified rate of the cleaning was 84.0% in the experimental group,54.7% in the control group;for the compatibility trail,the positive rate was only 1.0% in the experimental group,while the positive rate of the control group was 2.0% 48 hours after the trial,5.0% 96 hours after the trial,and 18.0% 168 hours after the trial,the difference in the positive rate of the compatibility between the experimental group and the control group 168h after the sinking was statistically significant.CONCLUSION The alkaline detergent is compatible with surgical instruments and can achieve better cleaning effect than dose the enzyme detergent when it is used in the semi-automatic ultrasonic cleaner.