Biological and adsorbable bone internal fixation implantation instrument
A bioactive and fixed device technology, which is applied in the field of biomedical devices, orthopedic trauma surgery, medical devices for plastic surgery, repair and reconstruction surgery, can solve the problems of low bioactivity and no bioactivity, and achieve low elastic modulus, The effect of avoiding stress shielding effect and excellent mechanical properties
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Embodiment 1
[0031] Such as figure 1 As shown, the bone plate 1 and the bone screw 3 are made of AZ31B (magnesium-aluminum series) magnesium alloy. Such as figure 2 As shown, after soaking in simulated body fluid for 3 days, a Ca-P layer was deposited on the surface, indicating that the bone plate and screw have good biological activity. One month after implantation in the animal body, there was a large amount of new tissue surrounding the bone plate, while the new tissue around the titanium alloy bone plate was relatively small, and the bone plate could not be wrapped. It is proved that the magnesium alloy bone plate has excellent biological activity.
Embodiment 2
[0033] Such as Figure 3-12 As shown, the ZK60 (magnesium-zinc series) magnesium alloy was made into L-shaped, T-shaped, trilobal, Y-shaped, special-shaped, arc-shaped, S-shaped bone plates and bone nails and soaked in simulated body fluid for 3 days. The deposition of Ca P layer shows that the bone plate has good biological activity.
Embodiment 3
[0035] Intramedullary nails were processed from AM60 (magnesium-aluminum series) magnesium alloy. After polishing, they were ultrasonically cleaned in acetone and alcohol for 5 minutes, dried in a vacuum oven, and then sprayed on the surface of the magnesium alloy bone plate by thermal spraying. The apatite layer with a thickness of 5 μm further improves the osteoinductive performance of the intramedullary nail.
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