Annu Int Conf IEEE Eng Med Biol Soc. 2022 Jul;2022:957-961. doi: 10.1109/EMBC48229.2022.9871705.
The MASI mechanical ventilator was developed in a state of emergency to meet the demand for ventilators caused by COVID-19. Although it has obtained positive results in its use with patients in intensive care units, not having an optimal quality non-invasive ventilation (NIV) modality prevents it from being used in the early treatment of patients, which has been shown to prevent admission to the ICU and reduce mortality. Therefore, the following study focuses on evaluating MASI's ability to provide NIV using different accessories in order to compare their performance and determine which one would work best with MASI, and under which conditions. To do this, the high-flow nasal cannula, facial mask, and ventilation helmet accessories were tested under different pressure parameter settings. The data was collected using a gas flow analyzer. After that, a statistical analysis of the results was carried out, which showed that the face mask is the best accessory to use for NIV with MASI, and that it performs with optimal accuracy and precision when the peak inspiratory pressure is set at a value lower than 25 cmH20. Clinical Relevance- This study presents an optimization of the non-invasive ventilation (NIV) modality of the MASI me-chanical ventilator by evaluating its performance with different accessories.
MASI 机械呼吸机是在紧急情况下开发的，以满足 COVID-19 引起的对呼吸机的需求。尽管它在重症监护病房的患者中使用取得了积极的效果，但由于缺乏最佳质量的无创通气（NIV）方式，它无法用于患者的早期治疗，而早期治疗已被证明可以预防 ICU 入院并降低死亡率。因此，以下研究侧重于评估 MASI 使用不同附件提供 NIV 的能力，以便比较它们的性能，并确定哪种附件与 MASI 配合使用效果最佳，以及在什么条件下效果最佳。为此，在不同的压力参数设置下测试了高流量鼻导管、面罩和通气盔附件。使用气体流量分析仪收集数据。然后，对结果进行了统计分析，结果表明，面罩是与 MASI 一起进行 NIV 的最佳附件，并且当吸气峰压设置为低于 25cmH20 时，它的性能具有最佳的准确性和精密度。临床意义-本研究通过评估不同附件的性能，对 MASI 机械呼吸机的无创通气（NIV）方式进行了优化。
