一个ICU风扇的快速设计:基于压缩空气-氧气的智能切换的方法
IEEE transactions on biomedical circuits and systems
|August 22, 2023
概括
本研究介绍了NED-Vent,这是一个低成本的呼吸机,解决了短缺和高成本的问题. 它具有先进的控制系统和肺部建模,以提供高效的呼吸支持.
科学领域:
- 生物医学工程 生物医学工程
- 医疗器械 医疗器械
- 呼吸系统护理 呼吸系统护理
背景情况:
- 呼吸机对于呼吸支持至关重要,但成本昂贵,在COVID-19大流行期间面临短缺.
- 现有的低成本呼吸机设计往往缺乏高效的控制系统或与标准ICU呼吸机相比的硬件.
- 人们需要易于使用,具有成本效益的机械呼吸机.
研究的目的:
- 提出一个全面的,具有成本效益的通风机设计 (NED-Vent),涉及硬件,电子,用户界面和控制系统.
- 开发一种能够使用各种呼吸模式的呼吸器,包括辅助,间歇和自发通风.
- 改进现有设计,使用交互式用户界面和自动气氧比率调整.
主要方法:
- NED-Vent采用通过比例门进行压缩空气-氧气切换,以提供呼吸辅助.
- 一个压力调节的控制系统是使用两个数学肺模型与机器学习进行动态参数估计来实现的.
- 使用陪审团测试和齐格勒-尼科尔斯调方法优化控制器稳定性.
主要成果:
- NED-Vent成功地产生了基本的体积和压力模式,以及衍生模式.
- 实现了交互式单旋门,单触摸用户界面和自动气氧比率调整.
- 通过使用的数学模型和调方法,与国际标准对呼吸形状结果进行了验证.
结论:
- NED-Vent为机械通风提供了一种具有成本效益和全面的解决方案.
- 该设计结合了先进的控制策略和用户友好的功能,改进了现有的低成本替代品.
- 对国际标准的验证证实了NED-Vent系统的可靠性和性能.
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