Chakrabarti M K, Whitwam J G
Br J Anaesth. 1983 Oct;55(10):1005-15. doi: 10.1093/bja/55.10.1005.
A ventilator, of new design, is described which has been evaluated on a lung model and in animals. It is simple, versatile, inexpensive and easy to sterilize. A single breathing tube is used in which the respiratory gas is introduced near the patient's airway while a jet in a more distal part of the tube drives the respiratory gas into the patient's lungs. Provided the internal volume between the respiratory gas inlet and the driving jet is at least one tidal volume, the driving gas does not take part in respiratory gas exchange. During controlled ventilation only normal ventilation volumes of respiratory fresh gas are required during both normal and high frequency ventilation. It can be used for any age group with any desired respiratory gas, and is suitable for use in the operating theatre and the intensive care unit. As there are no valves in the breathing system, which is open to the atmosphere at all times, complicated systems for synchronizing the machine with spontaneous breathing are not required. PEEP, NEEP, CPAP and IMV are applied easily.
本文描述了一种新设计的呼吸机，该呼吸机已在肺模型和动物身上进行了评估。它结构简单、功能多样、价格低廉且易于消毒。使用一根单一的呼吸管，呼吸气体在靠近患者气道处引入，而在呼吸管更远端的一个射流将呼吸气体驱动到患者肺部。只要呼吸气体入口和驱动射流之间的内部容积至少为一个潮气量，驱动气体就不参与呼吸气体交换。在控制通气期间，无论是正常通气还是高频通气，仅需要正常通气量的呼吸新鲜气体。它可用于任何年龄组，使用任何所需的呼吸气体，适用于手术室和重症监护病房。由于呼吸系统中没有阀门，且始终向大气开放，因此不需要复杂的系统来使机器与自主呼吸同步。呼气末正压（PEEP）、负压呼气末正压（NEEP）、持续气道正压通气（CPAP）和间歇指令通气（IMV）都易于应用。
