实验性全体积气道近似方法用于评估依赖呼吸的区域气溶沉积
Ian R Woodward1, Yinkui Yu1, Catherine A Fromen1
1Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716.
概括
一个新的体外肺模型,TIDAL,模拟患者特定的气道,用于气溶药物输送研究. 这种先进的工具准确地预测了肺体内的气溶沉积,改善了吸入治疗的发展.
科学领域:
- 生物医学工程 生物医学工程
- 呼吸系统医学 呼吸系统医学
- 药理学 药理学是指药理学的学科.
背景情况:
- 对人体呼吸道中的气溶动力学进行精确的体外建模对于开发吸入治疗药物至关重要.
- 现有的体外试验工具往往缺乏患者特定的解剖学和足够的肺体积模拟.
研究的目的:
- 开发一种新的体外建模管道,用于模拟特定患者的上空和深空气道.
- 创建一个模块化系统,能够模仿生理呼吸模式和大肺体积.
主要方法:
- 泰达尔系统是作为一个模块化的体外模型开发的,具有可调节的吸入/呼气功能.
- 该系统与振动网状雾化器相结合,以评估气溶沉积.
- 从中心到外围 (C:P) 的气溶沉积被测量并与体内和体内数据进行比较.
主要成果:
- 泰达尔系统可以达到超过7升的肺总容量,流量达到每分钟30升.
- 使用TIDAL系统进行的气溶沉积测量与已建立的in vivo和in silico基准标准保持一致.
- 该模型与临床相关的气溶输送设备的兼容性得到了证明.
结论:
- 泰达尔系统提供了一个强大而多功能的体外平台,用于研究患者特定的气道中的气溶沉积.
- 这个模型有效地预测了肺部的气溶行为,有助于优化吸入治疗方法.
- 这些发现支持使用TIDAL来推进新型气溶药物的开发和测试.
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