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首页> 外文期刊>Transaction of the Hongkong Institute of Engineers >Local Exhaust Ventilation for Infection Control in Hospitals
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Local Exhaust Ventilation for Infection Control in Hospitals

机译：局部排气通风以控制医院的感染

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Health care workers (HCWs) treating infectious patients, such as Severe Acute Respiratory Syndrome (SARS) patients, are at high risk of nosocomial infection. The concern is particularly serious during the bioaerosol-induced procedures, in which droplets and bioaerosols emitted by an infectious patient may enter the respiratory system of the HCW in dose contact with the patient. These medical procedures include endotracheal intubation, bronchoscopy, ambu bagging, among others. Infection control professionals have identified local exhaust ventilation (LEV) as a promising solution to remove the contagious pollutants for protection against nosocomial transmission of diseases. In this study, computation fluid dynamics (CFD) models were developed to simulate the transport of droplets and bioaerosols for design optimisation of a LEV system, taking into account the important particle deposition and turbulence effects. A LEV prototype was built and tested. The details of the computational analysis and empirical results are presented in this paper.
机译：治疗传染病患者（例如严重急性呼吸系统综合症（SARS）患者）的卫生保健工作者（HCW）面临医院感染的高风险。在由生物气雾剂引起的过程中，这种担忧尤其严重，其中由感染患者散发的液滴和生物气雾剂可能与患者剂量接触而进入HCW的呼吸系统。这些医疗程序包括气管插管，支气管镜检查，安布套袋等。感染控制专业人员已将局部排气通风（LEV）确定为一种有前途的解决方案，以去除可传染的污染物，以防止疾病的医院内传播。在这项研究中，考虑到重要的颗粒沉积和湍流效应，开发了计算流体动力学（CFD）模型来模拟液滴和生物气溶胶的运输，以优化LEV系统的设计。 LEV原型已构建并经过测试。本文详细介绍了计算分析和实证结果。

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