Computational and experimental investigation of an aerosol extraction device for use in dentistry

IF 3.9 3区环境科学与生态学 Q2 ENGINEERING, CHEMICAL

Journal of Aerosol Science Pub Date : 2024-10-28 DOI:10.1016/j.jaerosci.2024.106478

Vahid Goodarzi Ardakani , Mojtaba Dorri , Bin Zang , Angela H. Nobbs , Stephen Cross , Alberto M. Gambaruto

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引用次数: 0

Abstract

Medical procedures carry a high risk of pathogen transmission from patients to healthcare providers, the clinic environment, and subsequent patients. While measures such as patient mask wearing can help to reduce this danger, they may not always be possible, especially in dental treatments that need access to patients’ airways. A protective device was designed and built to effectively confine airborne particles during medical procedures without interfering with medical operations. The device is evaluated and its working principles discussed.

The device resembles a dome and comprises of four primary mechanisms to inhibit the spread of potentially infected aerosols during aerosol-generating procedures (AGPs) in dental surgery: (i) a physical barrier; (ii) air curtains; (iii) an extraction point; (iv) a sustained airflow ingress. Evaluation is carried out using experiments in laboratory and clinical settings, as well as high-resolution numerical simulations.

Results of the numerical simulations of the prototype device show over 99% capture in its design configuration. The results from experiments also report high efficiency. A detailed analysis of the device and recommendations for future development are provided. The results from tests in the clinical setting will be provided in detail in another paper.

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牙科用气溶胶提取装置的计算和实验研究

医疗程序极有可能将病原体从患者传染给医护人员、诊所环境和后续患者。虽然病人戴口罩等措施有助于降低这种危险，但并不总是可行，尤其是在需要接触病人呼吸道的牙科治疗中。我们设计并制造了一种保护装置，可以在医疗过程中有效地限制空气中的微粒，同时又不影响医疗操作。该装置类似于一个圆顶，由四个主要机制组成，用于抑制牙科手术气溶胶产生过程（AGP）中潜在感染气溶胶的扩散：(i) 物理屏障；(ii) 空气幕；(iii) 抽吸点；(iv) 持续气流入口。在实验室和临床环境中进行的实验以及高分辨率的数值模拟都对该装置进行了评估。原型装置的数值模拟结果显示，其设计配置的捕获率超过 99%。实验结果也显示了高效率。报告还对该装置进行了详细分析，并对未来发展提出了建议。临床测试结果将在另一篇论文中详细介绍。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Aerosol Science 环境科学-工程：化工

CiteScore

8.80

自引率

8.90%

发文量

127

审稿时长

35 days

期刊介绍： Founded in 1970, the Journal of Aerosol Science considers itself the prime vehicle for the publication of original work as well as reviews related to fundamental and applied aerosol research, as well as aerosol instrumentation. Its content is directed at scientists working in engineering disciplines, as well as physics, chemistry, and environmental sciences. The editors welcome submissions of papers describing recent experimental, numerical, and theoretical research related to the following topics: 1. Fundamental Aerosol Science. 2. Applied Aerosol Science. 3. Instrumentation & Measurement Methods.