tyjour A2 - Taiar, Redha AU - Umstead, Christopher AU - Barhorst, Alan AU - Kasemsri, Thivakorn AU - Mitchell，凯利PY - 2020 DA - 2020/05/20 TI -建模高血压作为一个贡献者视网膜出血从虐待性头部外伤SP - 4714927六世- 2020 AB -视网膜出血(RH)的象征和普遍虐待性头部外伤(出去)——不过出去RH的直接原因是未知的。我们的假设是，AHT中的RH是摇晃力和高血压的结合。这种综合效应解释了为什么RH在普通儿童事故中通常不被观察到，而在AHT中几乎完全被观察到。设计了一个使用猪眼的实验模型，以确定突然的RH所需的压力变化，并通过计算机模型，确定随后血管中的压力增加。猪眼经上颌动脉插管加压至灌注和RH。用计算机控制的连续流动注射器泵将流体注入头部;灌注时记录眼底录像;同时也记录了进入眼睛的液体的压力。在COMSOL中创建了一个计算机模型来模拟高血压、震动和各种力的组合所产生的负荷。 This model was validated via experimental data collected from the porcine model. It was found that hypertension or shaking alone did not cause an increase in stress required to cause RH. But when the loading of shaking and hypertension was combined, as would occur in AHT, the stress increases were greater than those extrapolated from the porcine model and would cause RH. SN - 2040-2295 UR - https://doi.org/10.1155/2020/4714927 DO - 10.1155/2020/4714927 JF - Journal of Healthcare Engineering PB - Hindawi KW - ER -