Burchett K R, Bennett J A
Anaesthesia. 1985 Feb;40(2):181-7.
A new, simple, versatile co-axial breathing system combining the features of Mapleson A, D and E type systems is described. The change from an A system to a D/E system is effected by a single switch and without reversal of the gas flow. Fresh gas flows in the order of 70 ml/kg/min are required for both spontaneous ventilation in the Mapleson A mode and controlled ventilation in the Mapleson D mode. The co-axial configuration offers the advantages of a single, lightweight breathing system with easy scavenging of anaesthetic gases, while the ability to switch between the A and D or E configurations offers the economic advantages of low fresh gas flows and the need for a single anaesthetic breathing system for all situations.
本文描述了一种新型、简单、通用的同轴呼吸回路系统，它结合了Mapleson A、D和E型系统的特点。从A系统转换为D/E系统只需通过一个开关即可完成，且无需改变气流方向。在Mapleson A模式下进行自主通气以及在Mapleson D模式下进行控制通气时，所需的新鲜气体流量均约为70 ml/kg/min。同轴结构具有单一、轻便的呼吸回路系统的优点，便于清除麻醉气体，而能够在A与D或E配置之间切换，则具有新鲜气体流量低的经济优势，并且在所有情况下都只需一个麻醉呼吸回路系统。
