Substrate for wear-proof orthopaedic joints, of non ferrous metal with a nitride-based coating
AssigneeMedacta International SA
InventorsPhilippe Lambert, Alessandro Farinotti
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Abstract
Substrates for joints for orthopaedic implants are described, wherein at least one of the sliding surfaces of non-ferrous metal alloys, in particular of cobalt, chromium, molybdenum alloys, has a coating consisting of niobium nitride nanolayers alternating with chromium nitride nanolayers, the lot being protected by a chromium nitride microlayer.
Claims5
A substrate for joints for orthopaedic implants, wherein at least one of one or more sliding surfaces of a CoCrMo alloy, comprises a plurality of coatings of nitride layers, characterized in that each of said coatings contains niobium nitride nanolayers alternated with chromium nitride nanolayers, protected by a chromium nitride microlayer.
Dependencies are inferred from the claim text.