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随着诊断技术的发展,新的正压通气机逐渐取代了老式的负压呼吸机。近年来对于呼吸肌功能障碍或衰竭有关的病理生理的研究,为夜间通气后的气体交换机制提供了新见解。应用正压通气机通常需气管切开,但此类呼吸机易与患者相接。最初为定压型,后又发展了定容型,并可选择辅助、控制、间歇指令通气(IMV)等通气方式,随着技术的改进和微处理技术的发展,新式、
With the development of diagnostic techniques, the new positive pressure ventilator gradually replaced the old negative pressure ventilator. Recent studies on the pathophysiology of respiratory muscle dysfunction or failure provide new insights into the gas exchange mechanism after nighttime ventilation. Positive pressure ventilators are usually tracheotomized, but such ventilators are easily connected to the patient. The initial fixed-pressure type, and then developed a fixed volume, and optional auxiliary, control, intermittent mandatory ventilation (IMV) and other ventilation methods, with the improvement of technology and the development of micro-processing technology,