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研究生:高漢元
研究生(外文):Han-Yuan Gao
論文名稱:骨板與骨釘之參數模型應用於股骨骨折術前規劃
論文名稱(外文):A parametric screw-plate model for the preoperative planning of fractured femur surgery
指導教授:鍾禎元
指導教授(外文):Chen-Yuan Chung
學位類別:碩士
校院名稱:國立中央大學
系所名稱:機械工程學系
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2017
畢業學年度:105
語文別:中文
論文頁數:110
中文關鍵詞:骨板股骨骨折有線元素法簡化模型Application Builder實際Sawbones模型
外文關鍵詞:bone platefemur fracturedfinite element analysissimplified modelApplication BuilderCAD of experimental model
相關次數:
  • 被引用被引用:1
  • 點閱點閱:285
  • 評分評分:
  • 下載下載:30
  • 收藏至我的研究室書目清單書目收藏:0
目前臨床上對於不同斷裂部位的骨折,發展出對應的樣式骨板與骨釘系統作為固定治療方式,為了解骨板於使用上的力學行為,並且給予骨科醫師作為選擇植入物之依據,因此本研究包含植體之骨板與骨釘於骨組織中的解析解推導,考慮植體於骨骼系統內的簡化模型承受簡單外力形式;使用COMSOL Multiphysics軟體分析含植體之骨組織有限元素模擬技術建立與驗證,探討植體及骨頭中的應力值與應變值。另外,也針對實驗樣品建立有限元素模型,計算植體結構強度,探討骨骼、骨板與骨釘的變形、應力與應變,此結果將作為植體選擇與鎖固分析的依據。本研究藉由COMSOL App建立器(Application Builder)分析不同骨板與骨釘的參數設定所呈現的應力及應變,可作為植體的材料選擇、螺釘數量的選擇及接觸式或非接觸式骨板的選擇;而從實際Sawbones模型得知螺釘的數目與位置,會影響骨板的應力分佈,可提供醫師手術前規劃的初步參考資訊。
At present, several types of implant (plate and screws) have been developed for the corresponding bone fractures at different sites. In order to understand the mechanical behavior of bone plate and to give surgeons some suggestions of selecting implants, this study includes the following aspects. The simplified model of bone-implant system subjected to an eccentric axial compression was derived in analytical form. In addition, the stress and strain in bone and implant were investigated using COMSOL Multiphysics software. Furthermore, the computed tomography (CT)-based finite element model was established to calculate the strength of the implant as well as the deformation, stress and strain of the bone, plate and screws. These results can serve as guidance for the selecting implant. This study also uses COMSOL Application Builder to analyze the stress and strain of a screw-plate fixation for different parameters such as the material of the implant, the number of screws and contact or non-contact plate. The CT-based model reveals the number and location of screws affected the stress distribution of the bone plate. It can provide preliminary reference information for clinicians before surgery.
目錄
摘要 i
Abstract ii
誌謝 iii
目錄 iv
圖目錄 vii
表目錄 xii
符號說明 xiii
第一章 緒論 1
1.1 前言 1
1.2 文獻回顧 2
1.3 研究目的與方法 18
1.3.1 研究目的 18
1.3.2 研究方法 19
1.4 論文架構 20
第二章 公式推導 21
2.1 前言 21
2.2 選擇截面與假設 22
2.2.1 對稱梁:對單一材料的梁施加軸向負載 24
2.2.2 對稱梁:單一材料梁的彎曲 25
2.2.3 對稱梁:對三種材料的梁施加軸向負載 27
2.2.4 對稱梁:三種材料梁的彎曲 29
2.3 植體與骨頭系統的力學行為 31
2.3.1 應力於骨植入系統之骨組織中的解析解推導過程 32
2.3.2 應力於骨植入系統之植體中的解析解推導過程 39
第三章 建立模型、材料及方法與應用App 43
3.1 前言 43
3.2 建立簡化模型 44
3.3 建立實際Sawbones模型 54
3.3.1 長骨實體模型 54
3.3.2 骨板及骨釘實體模型 55
3.4 應用App 61
第四章 結果與討論 65
4.1 前言 65
4.2 簡化模型FEA及比較結果 65
4.2.1 第一種簡化模型應力分析結果 66
4.2.2 第二種簡化模型應力分析結果 70
4.2.3 第三種簡化模型應用App分析結果 73
4.3 實際Sawbones模型分析結果 80
第五章 結論與未來展望 85
5.1 結論 85
5.2 未來展望 87
參考文獻 89
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