...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Environmental Research and Public Health >Time Effectiveness of Ultraviolet C Light (UVC) Emitted by Light Emitting Diodes (LEDs) in Reducing Stethoscope Contamination
【24h】

Time Effectiveness of Ultraviolet C Light (UVC) Emitted by Light Emitting Diodes (LEDs) in Reducing Stethoscope Contamination

机译：发光二极管（LED）发出的紫外线C光（UVC）在减少听诊器污染方面的时间效率

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Today it is well demonstrated that stethoscopes can be as contaminated as hands, which are a recognized source of Health-Care Associated Infections (HCAIs). Ultraviolet C (UVC) light has proven disinfection capacity and the innovative UVC technology of Light Emitting Diode (LED) shows several potential benefits. To verify whether the use of UVC LEDs is effective and reliable in stethoscope membrane disinfection after prolonged use, a pre-post intervention study was conducted. A total of 1668 five-minute cycles were performed on two UVC LEDs to simulate their use; thereafter, their disinfection capacity was tested on stethoscope membranes used on a previously auscultated volunteer. Then, a further 1249 cycles were run and finally the LEDs were tested to assess performance in reducing experimental contamination by Staphylococcus aureus , Pseudomonas aeruginosa and Escherichia coli on the stethoscope membrane. Baseline volunteer contamination identified 104 Colony Forming Units (CFUs) while treated Petri dishes had 12 and 15 CFUs ( p < 0.001). Statistically significant differences ( p < 0.001) were also found relating to the reduction of specific bacteria: in particular, after treatment no CFU were observed for S. aureus and E. coli . UVC LEDs demonstrated the capacity to maintain high levels of disinfection after more than 240 h of use and they were effective against common microorganisms that are causative agents of HCAIs.
机译：如今，已充分证明听诊器可以像手一样受到污染，而听诊器是公认的医疗保健相关感染（HCAI）来源。紫外线C（UVC）灯具有经过验证的消毒能力，发光二极管（LED）的创新UVC技术具有多种潜在优势。为了验证长时间使用后在听诊器膜消毒中使用UVC LED是否有效和可靠，进行了一项事前干预研究。对两个UVC LED进行总共1668个五分钟的循环以模拟其使用;之后，在先前听诊的志愿者使用的听诊器膜上测试其消毒能力。然后，再进行1249个循环，最后测试LED，以评估在听诊器膜上减少金黄色葡萄球菌，铜绿假单胞菌和大肠杆菌的实验污染的性能。基线志愿者污染确定了104个菌落形成单位（CFU），而处理过的培养皿则含有12个和15个CFU（p <0.001）。在减少特定细菌方面也发现了统计学上的显着差异（p <0.001）：特别是在治疗后，未观察到金黄色葡萄球菌和大肠杆菌的CFU。 UVC LED在使用超过240小时后显示出能够维持高水平消毒的能力，并且它们对作为HCAIs致病菌的常见微生物有效。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号