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跌倒导致的人类头部损伤的有限元建模

Finite element modelling of human head injuries caused by a fall.

作者信息

Raul Jean-Sébastien, Baumgartner Daniel, Willinger Rémy, Ludes Bertrand

机构信息

Institut de Médecine Légale, 11 rue Humann, 67085 Strasbourg, France.

出版信息

Int J Legal Med. 2006 Jul;120(4):212-8. doi: 10.1007/s00414-005-0018-1. Epub 2005 Jul 30.

Abstract

Finite element models (FEMs) can be used as prediction tools for human head injuries caused by falls. The purpose of this paper is to demonstrate the relevance of using human head FEM to assess the possible mechanism for the origin of head injuries. The FEM of the human head used in this study was developed in the late 1990s at the University Louis Pasteur of Strasbourg (ULP) and has been validated for human head impacts for simulating human head injuries caused by car accidents. Its use in legal medicine appears to be very useful for comparing different injury mechanisms. We present the simulation obtained for two witnessed falls of the same individual, and compare our results to tolerance limits of the main human head injuries. We show that this tool can be used to discuss the possible mechanism of injury encountered for the observed lesions in a forensic case. It can also help to distinguish between possible and impossible human head injury mechanisms.

摘要

有限元模型(FEMs)可作为预测跌倒导致的人类头部损伤的工具。本文的目的是证明使用人体头部有限元模型评估头部损伤起源的可能机制的相关性。本研究中使用的人体头部有限元模型是20世纪90年代末在斯特拉斯堡路易·巴斯德大学(ULP)开发的,并且已经针对模拟车祸导致的人体头部损伤的人体头部撞击进行了验证。其在法医学中的应用对于比较不同的损伤机制似乎非常有用。我们展示了对同一个体两次目击跌倒所获得的模拟结果,并将我们的结果与主要人体头部损伤的耐受极限进行比较。我们表明,该工具可用于讨论法医案件中观察到的损伤所遇到的可能损伤机制。它还可以帮助区分可能和不可能的人体头部损伤机制。

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