engleski

Analysis of temporary cavity produced by high velocity missile in gelatin blocks

The effects of high velocity missiles (a Russian AK-74 assault rifle, 5.45mm) in the tissue simulant - gelatin block were analyzed. The characteristics of temporary cavity were studied by the analysis of calibrated images of the missile path. The missile path through the block was visualized using a TV camera with an ultra-speed shutter. TV picture was calibrated before the shooting. Cross-section of the temporary cavity was measuredd as a function of distance from the missile entry point. The missile tract was found to be unpredictable, with deviations to the left, right, up and down. The missiles were unstable regarding precession. Study results showed the temporary cavity to be relatively narrow and regular in the first 10 cm from the missile entry point, becoming much larger and more irregular along the missile track. The lagrest tissue disruption was found between 150 and 200 mm of the missile path. The missiles were not found to deform or fragment. On the basis of the images obtained, it would be possible to calculate the volumen of temporary cavity, which is one of the most significant indicators of tissue disrupting potential of particular missile types.

wounds; gunshot; gelatin; models; military medicine; forensic medicine

nije evidentirano