关于增材制造的状腺结构的适用性及其作为椎间盘替换的潜在用途 - - 一项可行性研究
Valentin Gross1,2, Sergej Zankovic1, Bernd Rolauffs1
1G.E.R.N. Tissue Replacement, Regeneration and Neogenesis, Department of Orthopedics and Trauma Surgery, Medical Center-Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany.
Frontiers in bioengineering and biotechnology
|August 6, 2024
概括
使用柔性纤维的3D打印的状腺结构显示出作为椎间盘假肢的前景. 调整Gyroid属性和打印参数优化了机械特征,以便在治疗退行性磁盘疾病中潜在使用.
科学领域:
- 生物材料工程 生物材料工程
- 整形外科手术 整形外科手术
- 增材制造 增材制造 增材制造
背景情况:
- 椎间盘退化是导致背痛和椎间盘的重要原因.
- 目前的手术选择包括脊椎体融合 (黄金标准) 和磁盘假体.
- 需要先进,有效的椎间盘替代解决方案.
研究的目的:
- 为了3D打印状腺结构,以作为椎间盘假肢的潜在用途.
- 为了确定这些3D打印结构的机械性能.
- 为这种新型应用进行生物力学可行性研究.
主要方法:
- 状腺结构使用克里奥语参数 6.0.6.0.0 进行设计.
- 结构是3D打印使用灵活的TPU丝 (FlexHard,FlexMed) 在一个原始的普鲁萨i3MK3s+.
- 描述涉及显微镜和机械测试 (张力/压缩).
主要成果:
- 通过柔性纤维实现了用柔性纤维的 Gyroid 结构的成功 3D 打印.
- 显微镜证实印刷质量不错,没有错误.
- 机械测试表明,改变状腺特性 (体积,壁厚,密度) 显著影响机械行为.
结论:
- 使用柔性TPU纤维的3D打印Gyroid结构显示了用于椎间盘替换的有希望的机械性能.
- 优化的打印参数和Gyroid设计对于实现所需的机械特性至关重要.
- 这种方法代表了人工磁盘技术未来发展的可行途径.
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