呼吸口罩用于新生儿复苏的计算流体动力学研究
John Valerian Corda1, B Satish Shenoy1, Kamarul Arifin Ahmad2
1Department of Aeronautical & Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, India.
概括
这项研究比较了新生儿鼻腔中的空气流量,包括使用面罩和不使用面罩. 只有鼻腔的模型显示压力和阻力较低,表明新生儿的呼吸辅助更好.
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
- 新生儿护理 新生儿护理
背景情况:
- 面罩对于新生儿呼吸辅助设备至关重要.
- 了解新生儿鼻腔的气流动力学对于优化设备设计至关重要.
研究的目的:
- 为了评估和比较新生儿鼻腔内的气流参数,使用两个不同的面罩设计.
- 为了评估半球和解剖面孔杯对鼻气流的影响,与仅鼻气的模型相比.
主要方法:
- 使用MIMICS 21.0.0使用CT扫描开发了一个新生儿鼻腔模型.
- 在ANSYS 2021 R2中使用计算流体动力学 (CFD) 模拟空气流量,用于两个面罩类型 (半球和解剖).
- 将模拟结果与基线单鼻模型进行比较.
主要成果:
- 只有鼻腔的模型在鼻区域表现出最高的速度 (16.3%高于半球,15.2%高于解剖).
- 只有鼻腔的模型中,压力下降较低 (分别比半球杯和解剖杯少7.4%和6.6%).
- 鼻腔阻力仅在鼻腔模型中最低 (比半球杯和解剖杯分别低7.7%和6.7%).
结论:
- 半球和解剖面罩都显示了内鼻气流参数的微小差异.
- 与面孔杯模型相比,只有鼻腔模型显示出更有利的流动动力学 (压力更低,阻力更低).
- 研究结果表明,可以优化面罩设计,以改善新生儿呼吸支.
相关概念视频
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Oxygen percentage setting:...
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A nasal cannula is a lightweight tube split at one end into two prongs and placed in the nostrils. It is typically used to deliver low to medium levels of oxygen.
Suggested flow rate: The suggested flow rate for a nasal cannula typically ranges between 1 and 6 L/min.
Oxygen percentage setting:...
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01:30Administering Oxygen by Mask
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Administering oxygen by mask is a common nursing intervention that provides supplemental oxygen to patients with respiratory distress or chronic lung conditions. This procedure involves delivering oxygen at a specified rate through a face mask connected to an oxygen source.
Equipment
The equipment necessary for this procedure includes:
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