Patent · US Active

Substrate for wear-proof orthopaedic joints, of non ferrous metal with a nitride-based coating

US9005769B2 · kind B2 · utility

9Cited by

3References

5Claims

0Family size

Assignee

MEDACTA INTERNATIONAL SA · CH

Inventors

Philippe Lambert · Wezembeek-Oppem, BE
Alessandro Farinotti · San Nicolò a Trebbia, IT

Key dates

Filing date	May 11, 2011
Grant date	Apr 14, 2015
Priority date	—
Expiry date	Aug 30, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/12806
WIPO fieldMedical technology
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.