Effect of blast orientation, multi-point blasts, and repetitive blasts on brain injury

IF 1.7 4区医学 Q3 ENGINEERING, BIOMEDICAL

Medical Engineering & Physics Pub Date : 2024-04-04 DOI:10.1016/j.medengphy.2024.104163

Shuhuai Duan , Zhidong Wang , Wei Zhang , Yongtao Lu , Guojun Ma

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引用次数: 0

Abstract

Explosions in the battlefield can result in brain damage. Research on the effects of shock waves on brain tissue mainly focuses on the effects of single-orientation blast waves, while there have been few studies on the dynamic response of the human brain to directional explosions in different planes, multi-point explosions and repetitive explosions. Therefore, the brain tissue response and the intracranial pressure (ICP) caused by different blast loadings were numerically simulated using the CONWEP method. In the study of the blast in different directions, the lateral explosion blast wave was found to cause greater ICP than did blasts from other directions. When multi-point explosions occurred in the sagittal plane simultaneously, the ICP in the temporal lobe increased by 37.8 % and the ICP in the parietal lobe decreased by 17.6 %. When multi-point explosions occurred in the horizontal plane, the ICP in the frontal lobe increased by 61.8 % and the ICP in the temporal lobe increased by 12.2 %. In a study of repetitive explosions, the maximum ICP of the second blast increased by 40.6 % over that of the first blast, and that of the third blast increased by 61.2 % over that of the second blast. The ICP on the brain tissue from repetitive blasts can exceed 200 % of that of a single explosion blast wave.

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爆炸方向、多点爆炸和重复爆炸对脑损伤的影响

战场上的爆炸可能导致脑损伤。有关冲击波对脑组织影响的研究主要集中在单方向爆炸波的影响上，而对人脑对不同平面定向爆炸、多点爆炸和重复爆炸的动态响应研究较少。因此，采用 CONWEP 方法对不同爆炸载荷引起的脑组织响应和颅内压（ICP）进行了数值模拟。在对不同方向的爆炸进行研究时，发现横向爆炸冲击波比其他方向的爆炸冲击波造成的 ICP 更大。当矢状面同时发生多点爆炸时，颞叶的 ICP 增加了 37.8%，顶叶的 ICP 减少了 17.6%。当多点爆炸发生在水平面时，额叶的 ICP 增加了 61.8%，颞叶的 ICP 增加了 12.2%。在对重复爆炸的研究中，第二次爆炸的最大 ICP 比第一次爆炸增加了 40.6%，第三次爆炸的最大 ICP 比第二次爆炸增加了 61.2%。重复爆炸对脑组织造成的 ICP 可超过单次爆炸冲击波的 200%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Medical Engineering & Physics 工程技术-工程：生物医学

CiteScore

4.30

自引率

4.50%

发文量

172

审稿时长

3.0 months

期刊介绍： Medical Engineering & Physics provides a forum for the publication of the latest developments in biomedical engineering, and reflects the essential multidisciplinary nature of the subject. The journal publishes in-depth critical reviews, scientific papers and technical notes. Our focus encompasses the application of the basic principles of physics and engineering to the development of medical devices and technology, with the ultimate aim of producing improvements in the quality of health care.Topics covered include biomechanics, biomaterials, mechanobiology, rehabilitation engineering, biomedical signal processing and medical device development. Medical Engineering & Physics aims to keep both engineers and clinicians abreast of the latest applications of technology to health care.