Coupling systems and methods
US-2024115392-A1 · Apr 11, 2024 · US
Substrate for wear-proof orthopaedic joints, of non ferrous metal with a nitride-based coating
US9005769B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9005769-B2 |
| Application number | US-201113695605-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 11, 2011 |
| Priority date | May 11, 2010 |
| Publication date | Apr 14, 2015 |
| Grant date | Apr 14, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
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.
First claim
Opening claim text (preview).
The invention claimed is: 1. 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. 2. The substrate according to claim 1 , wherein the niobium nitride nanolayers alternated with the chromium nitride nanolayers are repeated 1 to 10 times. 3. The substrate according to claim 1 , wherein the niobium nitride nano-layers alternated with the chromium nitride nanolayers are repeated 11 to 20 times. 4. The substrate according to claim 1 , characterized in that a distance between a last, most external one of the chromium nitride nanolayers and a chromium nitride microlayer is between 2 and 10 micrometers, a thickness of each of the nanolayers is between 1 and 10 nanometers, and a sum of thicknesses of the nanolayers is between 2 and 10 micrometers. 5. The substrate according to claim 2 , characterized in that a distance between a last, most external one of the chromium nitride nanolayers and a chromium nitride microlayer is between 2 and 10 micrometers, a thickness of each of the nanolayers is between 1 and 10 nanometers, and a sum of thicknesses of the nanolayers is between 2 and 10 micrometers.
Assignees
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Classifications
Designing or manufacturing processes · CPC title
Adjacent to each other · CPC title
only coatings of inorganic non-metallic material · CPC title
Other specific inorganic materials not covered by A61L27/303 - A61L27/32 · CPC title
having variation in thickness · CPC title
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Frequently asked questions
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- What does patent US9005769B2 cover?
- 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.
- Who is the assignee on this patent?
- Lambert Philippe, Farinotti Alessandro, Medacta Int Sa
- What technology area does this patent fall under?
- Primary CPC classification A61F2/30. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Apr 14 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).