Einklemmung eines Kinderfingers: Eine experimentelle Studie zur Bestimmung der elastischen Widerstände und der Punkte des Beginns der Knochen-/Gelenkdeformierung
Einklemmung eines Kinderfingers: Eine experimentelle Studie zur Bestimmung der elastischen Widerstände und der Punkte des Beginns der Knochen-/Gelenkdeformierung
复制标题
儿童手指被卡住：确定弹性阻力和骨/关节变形起始点的实验研究
DOI：
10.1055/s-0031-1299768
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发表时间：
2012
影响因子：
0.6
通讯作者：
Müller
中科院分区：
文献类型：
--
作者：
Hohendorff;Weidermann;Pollinger;Burkhart;Prommersberger;K. J. ;Müller
了解儿童手指的弹性特性对于了解现代装有自动电动车窗的机动车辆中存在的卡住伤害的潜在危险非常重要。本研究测定了儿童手指在连续掌背压力下5种不同卡压位置的弹性阻力和骨/关节变形的起始点。一位8个月大的多指女婴最近通过手术取出了一根未经防腐处理的手指，这根手指被卡在定制的水压测试仪中。微型测力传感器和电测路径传感器测定力和偏转值。为了显示相应的骨/关节变形的起始点，在透视下对手指进行卡压。出现骨骼/关节变形时的平均力为78.4N。因此，目前自动电动车窗的最大关闭力法定限度为100N，远远超出儿童手指受伤的范围。假设儿童的手指损伤可能发生在低于大约80N的干扰力下，将法定限制降低到高于50N是合理的。
Knowledge of the elastic properties of children's fingers is very important to understand the potential hazard for jamming injuries that exists in modern motor vehicles with automatic power-operated windows. This study determined the elastic resistance and the point of onset of bone/joint deformation at each of 5 different jam positions of a child's finger under continuous dorsal-palmar compression. An unembalmed finger that recently had been surgically removed from a polydactylic 8 month-old girl was jammed in a custom hydraulic test apparatus. A subminiature force sensor and an electrometric path sensor measured force and deflection values. To visualise the respective point of onset of bone/joint deformation, jamming of the finger was performed under fluoroscopy. The mean force at the point of onset of bone/joint deformation was 78.4 N. The current statutory limit of 100 N for the maximum closing force of an automatic power-operated motor vehicle window is thus well beyond the point at which finger injuries can occur in children. Assuming finger injuries in children can occur at a jamming force below approximately 80 N, a reduction of the statutory limit to us higher than 50 N is reasonable.