Heneghan C P, Martindale D D, Blackburn J P
J Appl Physiol Respir Environ Exerc Physiol. 1978 Apr;44(4):640-1. doi: 10.1152/jappl.1978.44.4.640.
A simple ventilator is described where a spring-loaded bellows is filled from a compressed gas supply. The outflow from the bellows to the subjects is controlled by solenoid valves. The device is a minute volume divider and the durations of inspiration and expiration are set by timers that operate the solenoid valves. The valves are positioned near the subject to minimize dead space and gas compression effects. Precise valve timing ensures separation of inspirate and expirate. The ventilator is suitable for respiratory gas studies on animals and may be modified for human use if required.
本文描述了一种简单的呼吸机，其中弹簧加载的波纹管由压缩气体供应填充。波纹管向受试者的流出由电磁阀控制。该装置是一个分钟容积分配器，吸气和呼气的持续时间由操作电磁阀的定时器设定。阀门放置在靠近受试者的位置，以尽量减少死腔和气体压缩效应。精确的阀门定时确保吸气和呼气分离。该呼吸机适用于动物呼吸气体研究，如果需要，也可改装用于人类。
