机械通气技术的大量临床应用，使其成为抢救ＣＯＰＤ呼吸衰竭患者的重要手段之一［１］。给予危重的ＣＯＰＤ呼吸衰竭患者气管插管机械通气治疗，可在短期内改善通气，更好地改善痰液引流和控制肺部感染，使病程缩短，预后显著改善。同时有创性人工气道的建立，使患者上呼吸道 A large number of clinical application of mechanical ventilation technology, making it an important means of rescuing COPD patients with respiratory failure [1]. Endotracheal intubation of COPD patients with respiratory failure mechanical ventilation treatment can improve ventilation in the short term, to better improve sputum drainage and pulmonary infection control, so that shorten the course of the disease, the prognosis was significantly improved. At the same time invasive establishment of artificial airway, so that patients on the respiratory tract