A11 形状忠実な頭部物理・有限要素モデルによる脳挫傷発生メカニズムに関する研究(外傷バイオメカニクス)

概要

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It has not been clarified the reason why brain contusion tends to occur mostly at frontal part of a brain in each case that the impact is subjected at frontal or occipital part of the head. Therefore, the purpose of this study is to discuss a mechanism of cerebral contusion occurring at the impact site, called 'coup', and the site opposite the impact called 'contrecoup', from results of both experiments and simulations. Both a high-shape fidelity physical model of a human head and the Finite Element (FE) model were constructed from same medical images of a subject's head. Both high impact simulations in case of possible brain injury and low impact experiments were carried out to investigate intracranial pressure responses. The results showed that pressure concentrates at the frontal region more than the occipital region, which corresponds with clinical data.
社団法人日本機械学会の論文
2007-11-13