Connor S E, Bleetman A, Duddy M J
Birmingham Heartlands Hospital, Bordesley Green East, UK.
Injury. 1998 May;29(4):297-9. doi: 10.1016/s0020-1383(97)00205-2.
The protective properties of knife-resistant armour are quantified by the distance a test blade penetrates beyond a test sample into clay at a given energy. At present there are two proposed standards: penetration to 5 mm and penetration to 20 mm. Armour made to the higher standard specification (5mm) is necessarily heavier as it offers more protection. To determine the safety of these standards a retrospective review of 71 consecutive computerised tomographic (CT) scans was made. The minimum distance from the skin to the vital organs was measured. No organ would have been breached at 5 mm of knife penetration deep to body armour. 41% of pleurae, 61% of livers, 64% of femoral arteries, 25% of spleens and 6% of hearts would have been breached at a depth of 20 m of knife penetration. There was no significant difference in the minimum skin to organ distances between male and female subjects. The 20 mm standard does not offer adequate protection against knife attacks.
抗刀刺护甲的防护性能通过测试刀片在给定能量下穿透测试样本并进入黏土的距离来量化。目前有两个提议的标准：穿透至5毫米和穿透至20毫米。按照更高标准规格（5毫米）制造的护甲必然更重，因为它提供了更多保护。为了确定这些标准的安全性，对连续71次计算机断层扫描（CT）进行了回顾性分析。测量了从皮肤到重要器官的最小距离。对于穿在身上的护甲，刀具刺入5毫米深度时不会穿透任何器官。刀具刺入20毫米深度时，41%的胸膜、61%的肝脏、64%的股动脉、25%的脾脏和6%的心脏会被穿透。男性和女性受试者从皮肤到器官的最小距离没有显著差异。20毫米的标准不能为抵御刀击提供足够的保护。
