既往认为患者呼吸极度微弱、昏迷 ,甚至呼吸停止 ,才作气管插管或切开 ,行机械通气 ,延误了抢救时机 ,造成重要脏器损害疗效差 ,病死率高。当今 ,随着科学技术的发展 ,呼吸机传感器灵敏度提高以及计算机智能化 ,机械通气的同步性也随之增加 ,连接人机界面无创呼吸机应运而生 , In the past that patients with extremely weak breathing, coma, or even stop breathing before they were intubated or incision, the line of mechanical ventilation, delayed the timing of the rescue, resulting in poor efficacy of vital organs damage, high mortality. Nowadays, with the development of science and technology, the sensitivity of the ventilator sensor increases and the computer intelligence and the synchronicity of mechanical ventilation also increase. The non-invasive ventilator connected to the human-machine interface has emerged,