Brendstrup A, Benveniste D, Pedersen J E
Br J Anaesth. 1975 Dec;47(12):1335-7. doi: 10.1093/bja/47.12.1335.
The admixture of air in inspired gas with a paediatric insufflation system based on a gas jet has been investigated. During anaesthesia with spontaneous ventilation 1% of air per kg body weight was found in tracheal gas samples. A venturi effect was virtually absent even at high jet flows, which suggests that artificial ventilation prevents air admixture.
对基于气体喷射的儿科吹气系统中吸入气体与空气的混合情况进行了研究。在自主通气麻醉期间,气管气体样本中发现每千克体重有1%的空气。即使在高喷射流量下,文丘里效应实际上也不存在,这表明人工通气可防止空气混合。