Ceramic endoprosthesis components and processes for their production
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
N/A
app pub date -
Mar 24, 2005
filing date -
Sep 24, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The endoprosthesis component consists of a ceramic material which contains aluminium oxide and zirconium (di)oxide, the zirconium (di)oxide being present unstabilized or stabilized. The material has a gradient of the aluminium oxide and zirconium (di)oxide contents. In the area of increased tensile, bending and torsional stresses the zirconium (di)oxide content is increased compared with the articulation area, which contains predominantly aluminium oxide. The endoprosthesis component can be produced by infiltration of an open-pored pre-sintered aluminium oxide matrix by a zirconium (di)oxide slip, a zirconium salt solution, a zirconium-containing sol or alcoholate or a mixture of two or more of the abovementioned solutions/liquids. It can also be produced by continuously filling a compression mould with a mixture of aluminium oxide and zirconium (di)oxide powders, the mixing ratio of aluminium oxide and zirconium (di)oxide being varied during the filling of the compression mould.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully