改进清洗方法提高医疗器械清洗洁净度

Method to Increase Cleaniness of Blind Zone of Complicated Medical Instruments

目的提高医疗器械清洗洁净度,改善复杂医疗器械清洗难度。方法以清洗难度大的各类穿刺针为供试品,自行设计清洗架,以超声等清洗方法为主,设手工清洗为对照组,与超声1、多酶2、超声加喷淋3为观察组;试验多个时间段并重复3次,每次取不同供试品各3枚;完成程序后用血迹残留检测清洗效果。结果观察1、2组血迹残留检测试验棉拭子变为蓝色或浅蓝色,示有血迹残留,观察3组清洗20min血迹残留试验结果棉拭子达到不变色,说明清洗合格。结论特定清洗架和超声加喷淋清洗,清洗洁净度提高。

OBJECTIVE To explore an effective cleaning method to improve the washing quality of contaminated complicated medical instruments. METHODS The used puncture needles were washed by three methods（ultrasonic wave only, ultrasonic wave ＋ polyenzyme detergent, ultrasonic wave ＋ spray washing with special washing-rack designed by ourselves, while artificial washing group as control group, 3 pieces per group）. After washing, the samples were further assayed with HemoCheck-s swab to compare the washing effect. RESULTS The color of cotton swabs was turned blue or light blue. CONCLUSIONS Our results have demonstrated that ultrasonic cleaning plus spray washing with special washing-rack can improve the cleaning quality.