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快速,有针对性的紫外线消毒系统的体外和使用中的有效性
1Environmental Research Laboratory, University College London Hospital, London, UK.
The Journal of hospital infection
|November 21, 2024
概括
这项研究表明,一种新型的紫外线C (UVC) 消毒装置可以有效地消毒高触摸的医院表面. 它的快速,有针对性的方法补充了手动清洁,减少了细菌在表面的持久性.
科学领域:
- 微生物学 微生物学
- 感染控制 感染控制
- 环境卫生环境卫生
背景情况:
- 紫外线C (UVC) 消毒系统补充了医疗机构的手动清洁.
- 目前的系统通常使用固定,垂直的灯泡来对整个房间进行净化.
研究的目的:
- 评估一款具有关节臂的新型UVC装置的体外和使用中的有效性.
- 评估其在医院病房中快速,有针对性的脱污能力.
主要方法:
- 在不同的污染条件下,用耐甲金色葡萄球菌 (MRSA),Klebsiella pneumoniae和Clostridioides difficile子进行注射的不钢生物指标.
- 在UVC消毒后测量细菌恢复.
- 通过在手动清洁和UVC消毒前和后对表面采样有氧殖民地计数 (ACC) 和C. difficile来评估在使用中的疗效.
主要成果:
- 在不同的土壤水平上,对MRSA和K. pneumoniae的显著日志减少.
- 对C. difficile子的有效性有限,特别是在污染较高的情况下.
- 手动清洗使50%的表面上留下了细菌;UVC净化将这一比例降至30%,C. difficile在一个表面上持续存在.
结论:
- 这种新型的UVC系统有效地对高触摸表面和设备进行有针对性的消毒.
- 短周期时间允许在时间敏感的区域 (如手术室) 中使用.
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