机械通气（MV）是救治重度呼吸衰竭（RF）的终末手段之一。笔者近5年来以MV理论作指导，辅以严密的临床观察，在相对简陋的条件下开展MV，成功救治了频危RF10例次。一、MV设备与使用（一）MV设备：KTH－3电控、气动、时间切换型呼吸机（浙江绍兴三五仪表厂产）；简易呼吸球囊； Mechanical ventilation (MV) is one of the last resorts to treat severe respiratory failure (RF). The author in the past 5 years to MV theory as a guide, supplemented by close clinical observation, in a relatively simple condition to carry out the MV, successfully treated the frequency of RF10 cases. MV equipment and use (a) MV equipment: KTH-3 electronic control, pneumatic, time switch-type ventilator (Zhejiang Shaoxing 35 Instrument Factory); simple breathing balloon;