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DEVELOPMENT OF EXPERIMENTAL AND COMPUTATIONAL MODELS TO EVALUATE THE STABILITY OF AORTIC STENT GRAFTS IN MOTOR VEHICLE ACCIDENTS

机译:实验和计算模型的开发,评价机动车事故中主动脉支架移植物的稳定性

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A high speed impact system was developed to study the stability of stent grafts in thoracic porcine models in vitro. The experiments were guided by a finite element model of the test setup to identify the conditions that increase the risk of instability of the stent graft. The models showed that at anterior inclination of 45° and average deceleration of 40 G, which represented a frontal crash, the stent graft can move up to 1 mm. The results of this study may be helpful in developing future grafts to withstand shocks experienced in motor vehicle accidents.
机译:开发了一种高速冲击系统,以研究体外胸腔猪模型中支架移植物的稳定性。通过测试设置的有限元模型引导实验,以识别增加支架移植物的不稳定性风险的条件。该模型表明,在45°的前倾斜度和40g的平均减速时表示正碰撞,支架移植物可以移动到1mm。本研究的结果可能有助于发展未来的移植物,以承受机动车辆事故中经验的震荡。

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