以往对于急性呼吸衰竭的病人,常规治疗失败,需要进行机械通气,但侵入性机械通气可引起许多并发症,所以人们转向非侵入性机械通气的应用研究,企图避免侵入性机械通气的并发症,并能达到相似的治疗效果。本文分析和总结了非侵入性机械通气的作用机制、适应症,禁忌症及呼吸模式的合理选用。 In the past for patients with acute respiratory failure, conventional treatment failed and required mechanical ventilation, but invasive mechanical ventilation can cause many complications, so people turned to non-invasive mechanical ventilation research, in an attempt to avoid the complications of invasive mechanical ventilation, And can achieve similar therapeutic effect. This paper analyzes and summarizes the mechanism of non-invasive mechanical ventilation, indications, contraindications and the rational use of breathing patterns.