Design Concepts of Polycarbonate-Based Intervertebral Lumbar Cages: Finite Element Analysis and Compression Testing
Design Concepts of Polycarbonate-Based Intervertebral Lumbar Cages: Finite Element Analysis and Compression Testing
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聚碳酸酯椎间腰椎融合器的设计理念：有限元分析和压缩测试
DOI：
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发表时间：
2016
影响因子：
2.2
通讯作者：
H. Siller
中科院分区：
文献类型：
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作者：
J. Figueroa;E. Flores;J. Díaz;O. Martínez;Ciro A. Rodríguez;H. Siller
这项工作探讨了基于生物相容性聚碳酸酯（PC-ISO® 材料）的 3D 打印椎间腰椎融合器的可行性。提出了几种设计概念来生成患者专用的椎间腰椎融合器。 3D打印材料在特定的制造参数组合下实现了55MPa的压缩屈服强度。文献推荐椎间腰椎融合器设计参考载荷为4,000 N。在压缩测试条件下，所提出的设计概念在显示屈服之前可承受 7,500 至 10,000N 的负载。尽管在分析过程中发现了一些应力集中区域，但所提出的设计概念的整体可行性得到了验证。
This work explores the viability of 3D printed intervertebral lumbar cages based on biocompatible polycarbonate (PC-ISO® material). Several design concepts are proposed for the generation of patient-specific intervertebral lumbar cages. The 3D printed material achieved compressive yield strength of 55 MPa under a specific combination of manufacturing parameters. The literature recommends a reference load of 4,000 N for design of intervertebral lumbar cages. Under compression testing conditions, the proposed design concepts withstand between 7,500 and 10,000 N of load before showing yielding. Although some stress concentration regions were found during analysis, the overall viability of the proposed design concepts was validated.