基于轮的风机在过渡条件下保持潮体积的能力
Vincent Delord1, Isabelle Vaugier2, Hélène Prigent1,2,3
1Mr. Delord, Prof. Prigent, and Prof. Lofaso are affiliated with Department of Clinical Physiology, AP-HP, Hôpital Raymond-Poincaré, Université de Versailles Saint Quentin en Yvelines, Garches, France.
Respiratory care
|August 28, 2025
概括
在模拟的呼吸事件中,基于 bellows 的呼吸器 (BBV) 保持了比基于轮机的呼吸器 (TBV) 更好的潮体积 (VT). 一个TBV的性能与BBV相提并论,但其他TBV则难以应对突发的负载变化.
科学领域:
- 机械通风
- 呼吸系统生理学
- 生物医学工程
背景情况:
- 在短暂的负载变化期间评估呼吸器的性能对于患者的安全至关重要.
- 在使用口罩或口罩呼吸的患者中,呼吸器负荷的突然变化经常发生.
- 诸如空气堆积,泄漏,断开和阻塞等事件挑战了呼吸器的可靠性.
研究的目的:
- 为了比较基于轮的呼吸机 (TBV) 与基于 bellows 的呼吸机 (BBV) 在保持恒定潮体积 (VT) 的有效性和可靠性.
- 在空气堆积,泄漏,断开和阻塞的模拟条件下评估通风器的性能.
主要方法:
- 在5台TBV和1台BBV的实验室测试中.
- 在三个循环中模拟四个不同的短暂事件 (空气堆积,泄漏,断开连接,阻塞).
- 测量潮体积 (VT) 的传递精度和稳定性.
主要成果:
- 一个TBV和BBV在空气堆积和泄漏过程中有效保持VT.
- 其他TBV在空气堆积过程中显著降低VT,并在泄漏过程中发生暂时的VT变化.
- 与BBV不同的是,TBV的连接断开导致了连续的空气流.
- 所有设备都经过阻塞后进行VT,其中一个BBV显示轻微的过度输送.
结论:
- 在各种模拟的呼吸事件中,基于的呼吸器 (BBV) 显示出一致的潮体积 (VT) 稳定性.
- 基于轮的呼吸机 (TBV) 的性能变化很大,在负载变化时有些人遇到困难.
- 在切断时从TBV中持续的空气流需要进一步调查临床影响,特别是在口腔通风时.
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