| abstract |
The utility model discloses a kind of medicine slow-release magnesium alloy bracket, it comprises magnesium alloy bracket backbone and composite coating, described composite coating comprises the first coating covering described magnesium alloy bracket backbone surface, the second coating covering described first coating surface, and covers the 3rd coating of described second coating surface; Wherein, described first coating is Silane coupling agent KH550 coating, and described second coating is DL-PLCL drug-loaded layer, the drug-loaded layer that described 3rd coating is formed at least one in PLGA and PLLA.Magnesium alloy bracket backbone and extraneous corrosive medium can effectively be isolated by the composite coating in this utility model, effectively increase magnesium alloy bracket supporting time in vivo, and this composite coating is biodegradable coating, and catabolite is to human non-toxic's evil. |