Zhang Hai-zhong, Huang Xu-ming, Li Shi-yong, Liu Chun-ming, Ma Chun-sheng, Du Hui-liang, Huang Shi-lin
Department of Oral Maxillofacial Surgery, General Hospital of People's Liberation Army, Beijing 100853, China.
Zhonghua Yi Xue Za Zhi. 2003 Dec 25;83(24):2166-9.
To analyze the biomechanics of impact injury in the condition of the simulate impact on mandible.
A finite element model of human mandible was developed from the CT scan images by the technologies of three-dimensional reconstruction, image processing and meshing. The mandible model was connected to a modified head model of HYBRID III dummy with joint according to the anatomic structure and mechanical characteristics of the temporomandibular joint.
A finite element model of human head with true anatomic structure mandible has been developed. This model has been validated with the cadaver test results. The higher stress was showed in the condyle rejoins and coracoid in the model when mandible was in impact simulation.
This model can be used to research the mechanism of craniofacial blunt-impact injury and assess the injury severity. The model of HYBRID III dummy with the human mandible was helpful for the boundary design of mandibular model in the impact simulations.
分析在下颌骨模拟撞击条件下撞击伤的生物力学。
通过三维重建、图像处理和网格划分技术，从CT扫描图像构建人体下颌骨的有限元模型。根据颞下颌关节的解剖结构和力学特性，将下颌骨模型通过关节与改良的HYBRID III假人头模型相连。
构建了具有真实解剖结构下颌骨的人体头部有限元模型。该模型已通过尸体试验结果验证。在下颌骨撞击模拟时，模型中的髁突连接处和喙突显示出较高应力。
该模型可用于研究颅面部钝性撞击伤的机制并评估损伤严重程度。带有人类下颌骨的HYBRID III假人模型有助于撞击模拟中下颌骨模型的边界设计。
