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关于优化正压手术室设计的案例研究

Ghaim Man Oo¹, Komsilp Kotmool¹, Mongkol Mongkolwongrojn²

¹College of Advanced Manufacturing Innovation, King Mongkut's Institute of Technology Ladkrabang, Bangkok, Thailand.

Scientific reports

|August 12, 2024

概括

通过计算流体动力学优化手术室 (OR) 通风,确定最佳的患者位置和过压 (5.89 Pa),以最大限度地降低感染风险. 这有助于改善医院的手术部位感染 (SSI) 预防.

科学领域:

* 生物医学工程 * 生物医学工程
* 流体动力学流体动力学
* 医院感染控制医院感染控制

背景情况:

*手术室 (OR) 通风对于预防术后伤口感染至关重要,这是致病率和死亡率的主要原因.
*手术部位感染 (SSIs) 仍然是医疗保健机构的一个重大问题.
*了解空气流动力学是优化OR环境的关键.

研究的目的:

* 为了确定手术室通风系统的最佳过压.
* 通过计算流体动力学 (CFD) 来降低手术部位感染 (SSI) 的发生率.
* 确定在手术室内理想的患者位置,以提高安全性.

主要方法:

*使用计算流体动力学 (CFD) 进行过渡数值模拟.
*利用了物种运输,拉格朗日离散相和标准k-epsilon流模型.
* 评估了四种患者定位方案,以确定最佳设置.

主要成果:

* 改变了患者的90度位置,导致二氧化碳 (CO2) 和空气中的污染物度最低.
* 对于标准清洁级别,确定了5.89 Pa的最佳过压和0.56 m/s的供应速度.
*修改供应表面积提高了OR性能,即使在空气流量减少的情况下,也确保了所需的室内压力.

结论:

* 该研究为手术室提供了优化的通风策略,以尽量减少感染风险.
* 结果指导了正压式OR的实际应用,解决了超压效应.
* 改进的OR设计可以减少手术部位感染,改善患者的治疗结果.

关键词:

二氧化碳和携带细菌的粒子 (BCP) 度.压力过大压力过大阳性压力清洁室是一个正压式清洁室.手术部位感染 (SSI) 是一种手术部位感染.

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