Implant with a base body made of a biocorrodible alloy and a biocorrosion-reducing coating

摘要

The medical implant has a base body. Sections of the base body, made of a biocorrodible metallic material, are covered with a corrosion-inhibiting coating. The coating has a primer layer of biodegradable polymer material including a poly(D,L-lactide) with a specific degree of polymerization. A protective layer of another biodegradable polymer material has a diblock copolymer of polyethylene glycol and poly(D,L-lactide-co-glycolide) applied to the primer layer. The biocorrodible metallic material is a biocorrodible alloy selected from magnesium, iron, zinc, molybdenum or tungsten.