本文選題：鎖骨骨析 + 有限元分析　； 參考：《醫(yī)用生物力學》2017年03期

【摘要】：目的探討鎖骨骨折復位拉伸力的外部加載最優(yōu)方案,為鎖骨骨折外固定器的優(yōu)化設計提供力學參考。方法利用志愿者肩部CT掃描數(shù)據(jù)通過Mimics軟件建立人體左側(cè)肩部的三維模型。為了更好地模擬實際人體肩部,在模型中添加韌帶組織并考慮肌肉組織的約束,建立復位拉伸力模擬分析的實驗模型。通過3組仿真實驗,分別模擬分析復位拉伸力方向、作用點位置的影響及取值范圍,采用正交試驗法綜合模擬多種外部載荷情況下人體肩部模型鎖骨部位獲得的復位拉伸力。結果當外固定器加載在肩部合力方向在水平面的投影與冠狀軸的夾角θ45°時,鎖骨獲得復位拉伸力,且隨著夾角越大拉伸力越大。外固定器加載在肩部合力方向在矢狀面的投影與矢狀軸的夾角η=30°~45°時,鎖骨復位拉伸力最大。外固定器在肩部作用的位置離鎖骨水平位置越遠,鎖骨復位拉伸力就越大。結論正交試驗結果表明,產(chǎn)生最佳復位拉伸力的參數(shù)組合為θ=65°,η=50°,施加在人體肩部肱骨頭中心。
[Abstract]:Objective to explore the optimal external loading scheme for reduction and tension of clavicle fracture and to provide a mechanical reference for the optimal design of external fixator for clavicle fracture.Methods the three-dimensional model of left shoulder was established by Mimics software using CT scan data of volunteer shoulder.In order to better simulate the actual human shoulder, an experimental model of reposition and tension analysis was established by adding ligament tissue and considering the constraint of muscle tissue in the model.Three groups of simulation experiments were carried out to simulate and analyze the influence of the direction of the reposition tensile force, the position of the working point and the range of values, and the orthogonal test method was used to simulate the reduction and tensile force obtained from the clavicle of the human shoulder model under various external loads.Results when the angle 胃 45 擄between the projection in the horizontal plane and the coronal axis was loaded with the external fixator in the shoulder, the clavicle obtained a reduction tensile force, and the tensile force increased with the increase of the angle.When the external fixator was loaded on the shoulder in the sagittal plane and the angle between the sagittal axis and the sagittal axis was 30 擄or 45 擄, the clavicle reposition and stretching force was the largest.The farther the external fixator acts on the shoulder from the horizontal position of the clavicle, the greater the clavicle reduction and stretching force.Conclusion the results of orthogonal test show that the optimal reduction and tensile force are 65 擄胃, 50 擄畏, applied to the humeral head center of human shoulder.
【作者單位】： 廣西大學機械工程學院;廣西骨傷醫(yī)院骨傷科;
【基金】：國家自然科學基金項目(51365006,51445013) 廣西科學研究與技術開發(fā)技術項目課題(桂科攻0632007-2E)
【分類號】：R318.01;R687.3
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本文編號：1760228