2种不同清洗方法对复杂器械的清洗效果比较

目的探讨复杂医疗器械的有效清洗方法，提高清洗质量，保证灭菌效果，控制医院感染。方法选择供应室回收的中度污染器械500件，分为观察组和对照组，每组齿类器械150件，管腔器械100件。观察组采用手工配合多酶超声机清洗，对照组采用流动水手工清洗，比较2组清洗后的洁净度合格率和隐血试验阳性率。结果观察组清洗后齿类器械和管腔类器械的洁净度合格率分别为98.67%和98.00%，隐血试验阳性率分别为0.67%和1.00%；对照组清洗后齿类器械和管腔类器械的洁净度合格率分别为78.67%和70.00%，隐血试验阳性率分别为28.67%和34.00%；上述指标，观察组与对照组比较，差异均有统计学意义（均P＜0.01），即观察组均明显优于对照组。结论复杂的医疗器械，采用手工与多酶超声机清洗效果理想，提高了清洗质量。

Comparison between cleaning efficacy of complex medical instruments by two different cleaning methods

Objective To evaluate the effective cleaning methods for complex medical instruments, improve the cleaning quality, ensure sterilization effect, and control nosocomial infection . Methods Five hundred pieces of moderately contaminated rnedical instruments recycled from central sterile supply department were divided into two groups, each group included 150 pieces of saw-shaped instruments and 100 pieces of lumen instruments; Observa- tion group performed hand washing and multi-enzyme ultrasound machine cleaning method, control group adopted hand washing with flowing water, the cleanliness and positive rates of occult blood test （OBT）of two groups after cleaning were compared. Results The qualified rate of cleanliness of saw-shaped and lumen instruments after cleaning in observation group was 98. 67% and 98.00% respectively, the positive rate of OBT was 0. 67% and 1.00% respectively; The cleanliness of saw-shaped and lumen instruments after cleaning in control groups was 78, 67% and 70.00% respectively, the positive rate of OBT was 28. 67% and 34. 00% respectively （P〈0. 01） ; The efficacy of cleaning method in observation group was obviously superior to that in control group. Conclusion Combination of hand and multi-enzyme ultrasonic cleaning can improve the cleaning quality of complex medical instruments.