Ligas J R, Primiano F P, Saidel G M
Ann Biomed Eng. 1984;12(5):437-48. doi: 10.1007/BF02363915.
Continuum analyses of lung mechanics require that the boundary condition of stress transmitted to the outermost alveoli be known. Depending upon the exact geometry of the pleural-parenchymal coupling, this stress could possibly be influenced by the pleural mechanical properties. The relation between pleural tension and extension ratio was obtained from tissue specimens from mongrel dog lungs. Using the worst-case geometry, this relationship was compared with the equivalent relation between pressure and volume ratio for the whole lung of the same mongrel dogs. The results of this comparison and a suitable mathematical analysis indicate that the pleura transmits applied pressure differences to the underlying alveolar walls essentially without modification.
肺力学的连续介质分析要求知道传递到最外层肺泡的应力边界条件。根据胸膜-实质耦合的确切几何形状，这种应力可能会受到胸膜力学特性的影响。从杂种犬肺的组织标本中获得了胸膜张力与伸长率之间的关系。使用最坏情况的几何形状，将这种关系与同一只杂种犬全肺的压力与体积比之间的等效关系进行了比较。该比较结果和适当的数学分析表明，胸膜将施加的压力差基本上无变化地传递到下面的肺泡壁。
