Patent · US Active

Designed surfaces for use in medical implants or instruments

US9012043B2 · kind B2 · utility

0Cited by

9References

24Claims

0Family size

Assignee

Sandvik Intellectual Property AB · SE

Inventors

Ola Wilhelmsson · Robertsfors, SE
Tom Eriksson · Sandviken, SE
Per Mårtensson · Nacka, SE

Key dates

Filing date	Dec 21, 2009
Grant date	Apr 21, 2015
Priority date	—
Expiry date	Jul 31, 2032

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2310/00892
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A medical implant device or component thereof comprising a metal substrate and a coating layer structure provided on the substrate. The coating layer structure comprises an outermost layer of a ceramic material. A bonding structure is deposited between the metal substrate and the coating layer structure. The bonding structure comprises a chromium rich layer, which is deposited onto the metal substrate surface and has a higher concentration of chromium than the metal substrate, as well as a gradient layer having a composition gradient from the chromium rich layer towards the surface of the device providing increasing proportions of a gradient material which has structural correspondence with the layer of the coating layer structure that is most adjacent to the bonding structure.

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