在临床环境中验证超声波探针高级消毒装置的性能资格
David Bellamy1, Karen Vickery2
1Sterilising Services Department (SSD) Manager, St George Hospital, World Federation for Hospital Sterilization Sciences (WFHSS), Australia.
Infection, disease & health
|September 19, 2025
概括
过氧化 (H2O2) 雾消毒在性能资格测试中有效地实现了杀菌效果. 紫外线C (UV-C) LED和UV-C灯具设备未能显示出足够的杀菌活性,突出显示了潜在的患者安全风险.
科学领域:
- 医学微生物学 医学微生物学
- 感染控制 感染控制
- 生物医学工程 生物医学工程
背景情况:
- 按AS5369:2023.23规定,对消毒工艺进行常规性能合格 (PQ) 是强制性的.
- 自动化高级消毒 (HLD) 设备需要PQ进行现场验证.
- 人们对超声波传感器在PQ过程中进行再处理的UV-C设备的菌杀伤性产生了担忧.
研究的目的:
- 评估自动化高级消毒装置的杀菌效果.
- 评估UV-CLED,UV-C灯和过氧化 (H2O2) 雾装置的性能.
- 在例行性能资格考试期间,以确定是否符合杀虫剂疗效标准.
主要方法:
- 不钢生物指标 (BI) 使用10^6 Geobacillus stearothermophilus子进行了杀菌效果测试.
- 在UV-CLED,UV-C灯和H2O2雾装置的顶部和底部室内放置BI.
- 测试包括各种条件:包装,未包装和火焰消毒的BI.
主要成果:
- 在所有测试条件下 (n=18),UV-C LED 装置未能使子失活.
- 紫外线灯装置的有效性仅在2/6个未包装和燃烧测试中 (n=12) 证明.
- 在所有测试和位置 (n=18) 中,H2O2雾装置成功地使子失活.
结论:
- 过氧化 (H2O2) 雾设备在性能合格期间表现出一致的杀菌效果.
- 评估的两种UV-C设备都未能满足杀虫菌效率要求.
- 临床医生应增加对UV-C设备的监测频率,以确保患者的安全.
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