Dammann J F, McAslan T C
Crit Care Med. 1977 May-Jun;5(3):128-36. doi: 10.1097/00003246-197705000-00002.
The major components entering into the inspiratory pattern of various respirators were tested on a model lung which had an abnormally high airway resistance on one side. The tests consisted of simultaneous nitrogen washout curves from each lung separately utilizing two mass spectrometers. The components tested included a constant versus accelerating wave form and the presence, duration or absence of an end-inspiratory pause. Respirators tested included the Bennett MA1. Engström 300 and the Elema Schonander Servo tventilator 900. The results demonstrated the importance of an end inspiratory pause in improving gas distribution and efficiency of washout. No difference was found between a constant or accelerating air flow. Preliminary results in man appear to confirm the importance of an end inspiratory pause.
在一个一侧气道阻力异常高的模拟肺上，对各种呼吸机吸气模式的主要组成部分进行了测试。测试包括使用两台质谱仪分别同时获取每个肺的氮洗脱曲线。所测试的组成部分包括恒定与加速波形以及吸气末暂停的存在、持续时间或不存在。所测试的呼吸机包括贝内特MA1、恩斯特龙300和伊莱玛·肖南德伺服呼吸机900。结果表明吸气末暂停对改善气体分布和洗脱效率具有重要性。在恒定或加速气流之间未发现差异。在人体上的初步结果似乎证实了吸气末暂停的重要性。
