肺冲击伤的发生主要是这样一个生物力学过程:激波在体表产生一荷载(loading),荷载使机体结构运动、变形,随之产生体内的应力波动,应力波在体内传播,当组织内部的应力和变形超过一定限度,即引起组织损伤,发生一系列相应的病理变化。因此,激波在体表的荷载,荷载导致的机体结构运动、变形,体 Pulmonary impact injury occurs mainly in the biomechanical process: shock waves produce a load on the body surface, and the loads cause the body structure to move and deform. As a result, stress waves propagate in the body, Of the stress and deformation exceeds a certain limit, which caused tissue damage, a series of corresponding pathological changes. Therefore, shock waves in the body surface load, body structure caused by load movement, deformation, body