在临床实践中重复使用N95/PFF2口罩:形态和结构分析
Viviane Lopes Vimieiro1,2, Claysson Bruno Santos Vimieiro3,4, Adriana Cristina de Oliveira1
1Universidade Federal de Minas Gerais, Escola de Enfermagem, Belo Horizonte, MG, Brazil.
Revista latino-americana de enfermagem
|July 10, 2024
概括
重复使用N95/PFF2口罩会严重损害它们的结构完整性,增加毛孔和损伤. 这项研究强调了医疗保健专业人员重复使用这些基本保护设备的安全评估的必要性.
科学领域:
- 职业健康和安全问题 职业健康和安全问题
- 材料科学 材料科学 材料科学
- 传染病控制和控制传染病
背景情况:
- N95/PFF2呼吸器是医疗保健专业人员的关键个人防护设备 (PPE).
- 可重复使用的个人防护设备协议引发了人们对N95/PFF2口罩的长期完整性和有效性的担忧.
研究的目的:
- 评估N95/PFF2口罩的结构和形态完整性,经过7天和15天的重复使用协议.
- 识别可见损伤,包括纤维形态变化,多孔性,裂和微孔.
主要方法:
- 一项横截面研究,将新的N95/PFF2口罩与那些经过再利用协议的口罩进行比较.
- 利用视觉检查和扫描电子显微镜 (SEM) 来分析面具特征.
主要成果:
- 七天后,面具出现了污垢,鼻子剪贴受损 (100%),带问题 (20%).
- 15天的重复使用导致了普遍的污垢,损坏的鼻子剪贴,松散的皮带和折叠 (80%).
- 从七天开始,SEM显示了多孔性增加,织物松动,微孔和残留积累.
结论:
- 重复使用N95/PFF2口罩会对其结构和形态完整性产生负面影响.
- 这些发现强调了严格测试的重要性,以确保使用重复使用口罩的医疗保健专业人员的安全.
相关概念视频
01:10PPE Use in Healthcare Settings II: Doffing
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The sequence of removing or doffing PPE starts with the gloves, as they are the most contaminated. Next is removal of the face shield or goggles, as they would interfere with removing other PPE. Then remove the gown, followed by the mask or respirator. Perform hand hygiene between steps if hands become contaminated and immediately after removing all PPE. Generally, the outside front and sleeves of the isolation gown, the goggles or the mask, the respirator, and the face shield are contaminated.
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01:22PPE Use in Healthcare Settings I: Donning
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