Steffey E P, Berry J D
Am J Vet Res. 1977 May;38(5):685-7.
Inspiratory flow rates were measured and compared in an equine intermittent positive pressure breathing-anesthesia delivery apparatus powered by a positive phase ventilator, a positive-negative phase ventilator, and a modified positive phase ventilator with automatic flow acceleration at driving pressures of 2,600, 4,400, and 5,200 mm of Hg (50, 85, and 100 psi). The last-named apparatus consistently produced the highest flows for a given ventilator setting and driving pressure. Regardless of the unit used, the greater driving pressures and high ventilator range settings produced the greatest flows.
在由正压呼吸机、正负压呼吸机以及一种在2600、4400和5200毫米汞柱（50、85和100磅力/平方英寸）驱动压力下具有自动流量加速功能的改良正压呼吸机驱动的马用间歇正压呼吸麻醉输送装置中，对吸气流量率进行了测量和比较。对于给定的呼吸机设置和驱动压力，最后提到的装置始终产生最高的流量。无论使用哪种装置，更高的驱动压力和高呼吸机范围设置产生的流量最大。
