火器性血管震荡伤、瞬时冲击波及血管病理形态学的观察

Immediate pressure-wave and pathological changes of local artery after high-velocity missile injuries

本实验使用北约组织标准FNC步枪,新型SS109弹(15.56毫米口径),枪击狗腿肌肉丰富处距股骨6～8厘米,分别测量距伤道不同距离的股动脉承受瞬时冲击波的压力及观察血管病理改变。实验结果表明,高速弹产生的压力波在未直接击中血管时,仍可造成血管不同程度的损害;组织吸收的能量,压力波的大小及血管距弹道的距离决定血管的损伤程度。我们的观察结果在战伤救治上具有一定的意义。

A total of 40 anaesthetized mogerl dogs weighing 15—25kg, were wounded in the medial part of one thigh. The weapon was the FNG ride gun and the projectile was SS109 with an impact velocity of approximately 915M/s. The immediate pressure-wave and pathological changes of artery subjected to high-velocaty missiles were observed immediately, 24h, 72h, 3d and 7ds after wounding. The main results are as follows: 1. The nearer the distance from the wound to the local atery, the greater the intensity of the pressure is 2. High-velocity missile can damage blood vessels even if does not hit them directly. The damage to the local artery caused by pressure-wave and the formation of temporary cavity appear to be not very severe and need no special treatment.