摘要
目的动态监测洁净手术期间手术区悬浮粒子浓度,研究各级洁净手术室洁净手术区悬浮粒子到达稳定状态需要的净化时长。方法选取7家三级医院42间洁净手术室进行模拟手术,重复检测模拟手术过程中手术区悬浮粒子浓度。在控制温度、湿度、新风量等影响因素下,通过广义线性模型(GLM)分析各时间点悬浮粒子浓度差异。结果各级洁净手术室≥0.5和≥5.0μm悬浮粒子的浓度在T_(1)(0~1 min)、T_(2)(3~4 min)时间点显著大于后续时间段。但是Ⅰ级洁净手术室≥0.5和≥5.0μm悬浮粒子的浓度分别在T_(4)(9~10 min)、T_(3)(6~7 min)时间点后进入稳定阶段,Ⅱ级洁净手术室悬浮粒子的浓度分别在T_(5)(12~13 min)、T_(4)(9~10 min)时间点后进入稳定阶段,Ⅲ级洁净手术室悬浮粒子的浓度分别在T6(15~16 min)、T_(5)(12~13 min)时间点后进入稳定阶段。各手术室对≥5.0μm悬浮粒子的净化速率高于对≥0.5μm悬浮粒子。结论手术操作开始阶段会产生大量的悬浮粒子,所需器械包全部打开且清点完毕10 min后,悬浮粒子进入动态平衡。
Objective To dynamically detect the concentration of airborne particles in the operating areas of each level of clean operating rooms and to investigate the purification time required for the airborne particles to reach a stable state during the operation.Methods A total of forty-two clean operating rooms in seven tertiary hospitals were selected for simulated surgical testing,and the concentration of airborne particles in the operating areas was repeatedly measured during the process.The Generalized Linear Model(GLM)was used to analyze the differences in airborne particle concentration at various time points,controlling for confounding factors such as temperature,humidity,and fresh air volume.Results The concentrations of suspended particles in≥0.5 and≥5.0μm at T_(1)(0-1 min)and T_(2)(3-4 min)in the clean operating rooms at all levels were significantly larger than those in the subsequent time periods.However concentrations of≥0.5 and≥5.0μm suspended particles in Class I clean operating room entered the stable stage after the time points of T_(4)(9-10 min)and T_(3)(6-7 min),respectively,the concentrations of suspended particles in Class II clean operating room entered the stable stage after T_(5)(12-13 min)and T_(4)(9-10 min),and the concentrations of suspended particles in Class III clean operating room entered the stable stage after T6(15-16 min)and T_(5)(12-13 min),respectively.The purification rate of≥5.0μm suspended particles in each operating room was higher than that of≥0.5μm suspended particles.Conclusion A large number of suspended particles are generated at the beginning of the operation,and the suspended particles enter dynamic equilibrium after all the required instrument packages are opened and the inventory is completed for 10 min.
作者
林振武
周权
张昊
林馨
许祥福
LIN Zhen-wu;ZHOU Quan;ZHANG Hao;LIN Xin;XU Xiang-fu(Fuzhou Municipal Center for Disease Control and Prevention,Fuzhou 350209,China)
出处
《中国消毒学杂志》
2025年第5期329-332,336,共5页
Chinese Journal of Disinfection
关键词
洁净手术室
悬浮粒子
广义线性模型
动态
clean operating room
airborne particles
generalized linear model
dynamic
