钙磷层对NiTi形状记忆合金与骨组织结合特性的影响

1.天津大学材料科学与工程学院,天津,300072

2.天津医科大学,天津,300073

3.天津大学材料科学与工程学院,天津,300072

4.天津大学材料科学与工程学院,天津,300072

基金项目: 高等院校骨干教师基金(GG-805-10056-1603) 国家自然科学基金(59971032)

Effcet of Ca-P Layer on Bonding of NiTi Shape Memory Alloy to Bone Tissue

用化学处理的方法,在NiTi合金表面生成钙磷(Ca-P)层,再将试样植入日本大耳兔的股骨中考察其生物相容性.试验结果表明:经表面处理的试样和骨组织结合良好,并能传导新生骨的形成,表明经处理后有良好的生物相容性.而未经处理的试样,在实验范围内,没有观察到成骨细胞的存在及新生骨的形成.

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