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首页> 外文期刊>Building and Environment >Conflicting effects of a portable ultra-clean airflow unit on the sterility of operating rooms: A numerical investigation
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Conflicting effects of a portable ultra-clean airflow unit on the sterility of operating rooms: A numerical investigation

机译：便携式超清洁气流单元对手术室无菌的冲突影响：数值调查

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The onset of post-operatory surgical-site infections is significantly correlated with the concentration of viable airborne bacteria that are shed from the surgical team or entering the operating room during door openings and are deposited directly on the patient's wound or on surgical instruments.The ultra-clean vertical laminar airflow ventilation system is often used to protect the main surgical area of operating rooms. The clean zone provided by the laminar airflow system is crowded with staff and furniture. As a result, some surgical instruments might remain outside the protected area. We use a numerical simulation to investigate the capability of a portable ultra-clean airflow unit to reduce the contamination of the principal instrumentation table by airborne bacteria, during a sham operation. The numerical model is thoroughly validated against the experimental data available for a test room. The portable air-cleaning device maintains sterile conditions on the principal instrumentation table over a range of flow rates of the general ventilation, although it induces higher levels of bacterial contamination in other zones of the room at the same time.
机译：锻炼后手术部位感染的发作与从外科手术团队脱落的可行空气菌群的浓度显着相关，或者在门开口期间进入手术室，并直接存放在患者的伤口或手术器械上。超 - 用于垂直的层状气流通风系统通常用于保护手术室的主要手术区域。由层流气流系统提供的清洁区挤满了员工和家具。因此，一些手术器械可能仍然存在于保护区之外。我们使用数值模拟来研究便携式超清洁气流单元的能力，以在假手术期间通过空中细菌减少主要仪器仪表表的污染。根据可用于测试室的实验数据彻底验证了数值模型。便携式空气清洁装置在一般通风的流量速率范围内对主要仪表表保持无菌条件，尽管它同时在房间的其他区域诱导较高水平的细菌污染。

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