可降解锌合金血管支架的研究现状、面临的挑战与对策思考
钱漪, 袁广银

Research Status, Challenges, and Countermeasures of Biodegradable Zinc-Based Vascular Stents
QIAN Yi, YUAN Guangyin
表1 可降解锌基合金在体内、体外降解速率[4,5,26~35]
Table 1 In vivo and in vitro degradation rate of degradable Zn-based alloy[4,5,26-35]
AlloyPreparation processIn vitro (immersion test)In vivoRef.
mm·a-1mm·a-1
ZnAs-drawn0.012 (45 d)[4]
0.05 (180 d)
Zn-0.8CuAs-extruded & as-drawn0.016 (180 d)[5]
Zn-LiAs-drawn0.08 (60 d)[26]
0.046 (12 months)
ZnAs-extruded0.022SBF (20 d)[27]
Zn-MgAs-extruded0.084Hank's (14 d)[28]
Zn-AgAs-extruded0.015Hank's (28 d)[29]
Zn-CuAs-extruded0.033SBF (20 d)[27]
Zn-CaAs-rolled0.089Hank's (14 d)[30]
Zn-SrAs-rolled0.098Hank's (14 d)[30]
Zn-0.05ZrAs-extruded0.014Hank's (28 d)[29]
Zn-3Cu-0.1MgAs-extruded0.022Hank's (20 d)[31]
Zn-3Cu-1MgAs-extruded0.043Hank's (20 d)[31]
Zn-3Cu-0.5FeAs-extruded0.064SBF (20 d)[32]
Zn-3Cu-1FeAs-extruded0.069SBF (20 d)[32]
Zn-0.35Mn-0.41CuAs-rolled0.050SBF (14 d)[33]
Zn-0.75Mn-0.40CuAs-rolled0.065SBF (14 d)[33]
Zn-1.5Mg-0.1MnAs-cast0.080Hank's (30 d)[34]
0.065Hank's (90 d)
Zn-Mg-0.1MnAs-rolled0.115Hank's (30 d)[34]
0.070Hank's (90 d)
Zn-Mg-CaAs-extruded0.090Hank's (56 d)[35]
Zn-Mg-SrAs-extruded0.095Hank's (56 d)[35]
Zn-Ca-SrAs-extruded0.109Hank's (56 d)[35]
Zn-Ag-0.05ZrAs-extruded0.017Hank's (28 d)[29]