机械呼吸是维持呼吸的一种手段,其作用在于保证患者有足够的通气量,减少呼吸功的消耗,缓解威胁患者生命的严重缺O_2和CO_2潴留。为治疗导致呼吸衰竭的原发病争取时间和条件,降低各种原因造成呼吸衰竭的死亡率。目前呼吸机的类型日益增多,功能逐渐完备,在老年人严重呼吸衰竭的抢救 Mechanical respiration is a means of maintaining respiration, its role is to ensure that patients have adequate ventilation, reduce the consumption of respiratory work, to alleviate the serious threat to patient life lack of O2 and CO2 retention. For the treatment of primary disease leading to respiratory failure for the time and conditions, reduce the various causes of respiratory failure mortality. Currently the type of ventilator is increasing, the function is gradually complete, the rescue of serious respiratory failure in the elderly