Lack J A
Anaesthesia. 1976 Mar;31(2):259-62. doi: 10.1111/j.1365-2044.1976.tb11800.x.
Pollution control should be simple, cheap and effective. It should not introduce further hazards to the patient nor significantly complicate the practice of anaesthesia. These goals are attainable using a simple passive system. Convenience in use is enhanced by a concentric tubing system which allows effluent gases to be collected at the machine end and exhausted to the exterior. The additional expiratory resistance is minimal.
污染控制应简单、廉价且有效。它不应给患者带来进一步的危害，也不应使麻醉操作显著复杂化。使用简单的被动系统即可实现这些目标。同心管道系统提高了使用便利性，该系统允许废气在机器端收集并排放到外部。额外的呼气阻力极小。
