Preliminary Study: Disinfection of Colonoscope Using a Reprocessing System Based on a Hydrodynamic Model with Ozonated Water

IF 2.1 4区环境科学与生态学 Q3 ENGINEERING, ENVIRONMENTAL

Ozone: Science & Engineering Pub Date : 2023-01-02 DOI:10.1080/01919512.2022.2164251

Maycon Crispim de Oliveira Carvalho, A. B. Fernandes, H. C. Carvalho, R. Zângaro, Carlos José de Lima

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引用次数: 1

Abstract

ABSTRACT Endoscopes are flexible medical instruments that require a high-level disinfection protocol. This study aimed to develop a fluid-dynamic system with ozonated water to obtain high-level disinfection. A colonoscope replica with an internal flexible polytetrafluoroethylene (PTFE) tube was made. The set was then contaminated, washed, and disinfected with ozonated water. The replica was placed in a tank with a fluid-dynamic circuit. The endoscope was submerged into the tank and ozonated water was pumped through the working channel. Quantitative microbiological tests were carried out between the washing stage and disinfection in the fluid-dynamic system with ozonated water. The results indicated that the ozone concentration curve in the water from the 27- liter main tank reached the value of 0.95 mg/L after 20 minutes. No bacterial growth was detected after the replica remained in the hydrodynamic system with ozonated water for 15 minutes. The results showed that the fluid-dynamic system using ozonated water is promising as it enables high-level disinfection of the colonoscope.

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基于臭氧化水水动力学模型的结肠镜消毒后处理系统的初步研究

内窥镜是一种灵活的医疗器械，需要高水平的消毒方案。本研究旨在开发一种臭氧化水的流体动力系统，以获得高水平的消毒。制作了一个内置柔性聚四氟乙烯(PTFE)管的结肠镜复制品。然后用臭氧水污染、清洗和消毒。复制品被放置在一个装有流体动力学回路的水箱中。将内窥镜浸入罐内，通过工作通道泵送臭氧水。在臭氧水流体动力系统中进行了从洗涤阶段到消毒阶段的定量微生物学试验。结果表明，27升主池水中臭氧浓度曲线在20分钟后达到0.95 mg/L。在水动力系统中与臭氧水保持15分钟后，没有检测到细菌生长。结果表明，使用臭氧化水的流体动力系统可以实现结肠镜的高水平消毒。

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来源期刊

Ozone: Science & Engineering 环境科学-工程：环境

CiteScore

5.90

自引率

11.10%

发文量

审稿时长

2 months

期刊介绍： The only journal in the world that focuses on the technologies of ozone and related oxidation technologies, Ozone: Science and Engineering brings you quality original research, review papers, research notes, and case histories in each issue. Get the most up-to date results of basic, applied, and engineered research including: -Ozone generation and contacting- Treatment of drinking water- Analysis of ozone in gases and liquids- Treatment of wastewater and hazardous waste- Advanced oxidation processes- Treatment of emerging contaminants- Agri-Food applications- Process control of ozone systems- New applications for ozone (e.g. laundry applications, semiconductor applications)- Chemical synthesis. All submitted manuscripts are subject to initial appraisal by the Editor, and, if found suitable for further consideration, to peer review by independent, anonymous expert referees.