本文主要是可變形脊椎融合器設計、可變形脊椎融合器ANSYS力學分析、TiN鍍膜製程與生物相容性檢測等工作。本文的可變形脊椎融合器利用不可逆機構設計及ANSYS模擬分析其力學行為，並以真空鍍膜技術進行鈦合金的TiN鍍膜工作，使3D列印鈦合金具有生物相容性，而3D列印鈦合金可以製造多孔性表面，應用於脊椎融合器之多孔性表面。本文為了確保可變形脊椎融合器的安全性而進行ANSYS力學分析，因此可變形脊椎融合器經ANSYS模擬分析最大應力110.85MPa皆小於破壞強度254.78MPa，所以設計的可變形脊椎融合器結構是安全的，並將脊椎融合器實體進行頂壓測試，並將頂壓的模擬值與實驗值進行對比，證實ANSYS分析數值的正確性。

This article describes the design and analysis of a deformable spinal cage, its coating with titanium nitride (TiN), and its biocompatibility testing. We designed the deformable spinal cage through an irreversible mechanism and explored its mechanical behavior through ANSYS simulation analysis. Additionally, we used vacuum coating technology to coat titanium alloys with TiN, thus enhancing the biocompatibility of 3D-printed titanium alloys, which can create a porous surface that can be used in spinal fusion devices. The safety of the deformable vertebral fusion device was verified through ANSYS mechanical analysis. ANSYS simulation analysis revealed that the deformable spinal cage could bear a maximum stress of 110.86 MPa, which was lower than its failure strength of 254.78 MPa, demonstrating the structure's safety. The accuracy of the ANSYS analysis was confirmed by comparing the simulated values with the experimental values for the spinal cage entity in a compression test.