呼吸系统P V曲线描述了整个呼吸系统静态机械特征,是用于诊断目的的生理学方法。在患严重肺疾病时,是唯一测定肺功能的实验。床旁使用P V曲线这种技术用于诊断及通气机治疗是临床研究方向的一个重要内容。1　生理学原理肺通气力需克服呼吸系统的流速阻力、惯性、弹性回缩力[1] The respiratory V P curve describes the static mechanical characteristics of the entire respiratory system and is a physiological method used for diagnostic purposes. In the case of severe lung disease, it is the only test that measures lung function. Using P V Curves at the Bed This technique for diagnosis and ventilator therapy is an important part of clinical research. 1 physiological principles of pulmonary ventilation need to overcome the respiratory flow resistance, inertia, elastic retraction force [1]