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Dynamic Response and Damage Estimation of Infant Brain for Vibration

机译：振动婴幼儿大脑的动态响应与损伤估计

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摘要

The purpose of this paper is to clarify the mechanical generation mechanism of acute subdual hematoma, which is a severe injury in infants, by performing experiments and finite element analysis. The acute subdural hematoma in infants is caused by accidents such as falling or abuse such as shaking. This paper describes the shaking events. In the experiments, we used a 6-month-old anthropometric dummy and a vibration exciter, which can set the parameters. The dummy was fixed to the exciter at the chest, which it was given the vibration. The head model of the dummy is transparent, and the brain behavior can be visualized. In finite element analysis, we used a model that has been converted to the 6-month-old head through the adult head by the method of free-form deformation (FFD) and scaling. Also, we performed the simulation of shaking events as input acceleration and angular velocity of the head obtained in the experiments. We measured the stretch ratio of the bridging veins, which connect the skull and the brain, then compared this with the ratio to the threshold (1.5). In this study, we examined the effect on the infant head of shaking action, along with the risk.
机译：本文的目的是通过进行实验和有限元分析，阐明急性副血肿的机械发电机制，这是婴儿的严重损伤。婴儿的急性软骨血肿是由诸如摇晃或滥用的事故引起的。本文介绍了摇动事件。在实验中，我们使用了一个6个月历史的人体测量钝化和振动激励器，可以设定参数。假设胸部的激励器固定在胸部，振动振动。假人的头部模型是透明的，并且可以可视化大脑行为。在有限元分析中，我们通过自由形式变形（FFD）和缩放的方法，使用了一架已经通过成人头转换为6个月大的头部的模型。此外，我们执行摇动事件的模拟作为实验中获得的头部的输入加速度和角速度。我们测量了连接头骨和大脑的桥接静脉的拉伸比，然后将其与阈值（1.5）的比率进行比较。在这项研究中，我们研究了对婴儿摇头行动的影响以及风险。

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