水下冲击伤防护的初步探讨

目的 探讨水下冲击伤防护的可行性和一些基本原理和方法，为研制水下冲击伤的防护服奠定基础。方法 50只兔，随机分为对照组和防护组，分别将动物成对置于离爆心5．00、7．50、8．75、10．00、12．50、15．00、17．50m处，用200gTNT炸药球进行水下爆炸，采用压力传感器测试水下冲击波的物理参数。观察伤后6h动物的存活情况和病理形态学改变。结果 自行研制的防护装置对水下冲击伤具有明显的防护作用，尤以对水下冲击伤的靶器官肺和胃肠道最为明显，使用防护装置后其总伤情降低了2～3级。结论 防护装置可大大减轻水下冲击伤的伤情。

Experimental protective garment against underwater personal blast injury

Objective To explore the possibility for preventing the underwater blast injuries. Methods Fifty rabbits were divided into two groups: protection and control groups. The animals were placed at the rang of 5.0m to 17.5m far from the explosion point. 0.2kg of TNT Explosives was placed 3 meters under water. Physical parameters of blast wave were measured using pressure transducers. At 6 hours after injury, the mortality rate and morphological alternations were observed. Results The safe devices were shown to be effective against underwater blast injuries. Most of the animals had no or mild pulmonary and intestinal injuries. The whole injury severity was reduced by 2 to 3 degrees with our own made device. Conclusion Our safe device could be used to protect against underwater blast injueirs.