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一种体外技术,用于测量内管对压缩和扭曲的抵抗力

Emily Young¹, Tonya M Nocera², Matthew Reilly²

¹Wright State University Boonshoft School of Medicine, Dayton, Ohio, United States of America.

Saudi journal of anaesthesia

|August 16, 2024

概括

一个新的体外机械测试评估了内管 (ETT) 扭曲阻力. 加热条件降低了扭曲ETT所需的力,这表明气道阻塞的可能性.

科学领域:

生物医学工程生物医学工程
医疗器械测试医疗器械测试
麻醉学麻醉学

背景情况:

呼吸系统参数如峰值膨胀压力 (PIP) 和呼出的潮体积的手术期间监测对于评估呼吸机制至关重要.
这些参数的变化可以表明危急状况,但扭曲的内管 (ETT) 可以模仿其他病理,使诊断复杂化.
开发具有增强抗曲能力的ETT对于患者安全至关重要.

研究的目的:

开发和描述一个可重复的体外机械试验,以量化内管 (ETT) 抗扭曲的抗性.
在模拟的临床条件下建立一种标准化的方法来评估ETT设计对模拟临床条件下的扭曲.

主要方法:

开发了一种机械测试程序,以测量扭曲ETT所需的压缩力和距离.
在各种条件下测试ETT,包括不同的温度.
在压缩测试期间内置的空气流量,以将机械扭曲与气道阻塞相关联.

主要成果:

机械测试成功确定了扭曲ETT所需的力和距离.
在加热的测试条件下,需要较低的压缩力来诱导扭曲.
空气流阻塞与机械扭曲同时发生,正如在力-距离曲线上观察到的.

结论:

开发的体外机械测试提供了一种可靠的方法来表征ETT扭曲电阻.
这些程序可用于在模仿临床实践的条件下评估和比较ETT设计.
这种测试可以为开发更安全的内管提供信息,从而提高对曲的抵抗力.

关键词:

气道阻塞是指空气道的阻塞.压缩力是一个压缩力.在内内管中,内内管是指内内管.这就是Kinking的Kinking.峰值膨胀压力充气压力是什么

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