Gradient coating for biomedical applications
US-9011965-B2 · Apr 21, 2015 · US
Antibacterial medical product and method for producing same
US12022822B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12022822-B2 |
| Application number | US-202117179795-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 19, 2021 |
| Priority date | Jul 9, 2010 |
| Publication date | Jul 2, 2024 |
| Grant date | Jul 2, 2024 |
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- Title
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Abstract
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A medical product including an antibacterial hard material coating, which is applied to a main body and which includes biocide. The hard material coating includes at least one inner layer and one outer layer, wherein the biocide concentration in the outer layer is substantially constant and greater than the biocide concentration in the inner layer and the biocide concentration in the inner layer is greater than or equal to 0.2 at %.
First claim
Opening claim text (preview).
The invention claimed is: 1. A medical product with an antibacterial hard material coating comprising a biocide applied to a main body, the hard material coating consisting of a bonding layer, an inner layer, and an outer layer, wherein the inner layer is between the outer layer and the main body, the bonding layer is between the inner layer and the main body, the bonding layer contains essentially no biocide, the outer layer has a biocide concentration (bcI) of 2 at % to 15 at %, the inner layer has a biocide concentration (bcII) that is greater than or equal to 0.2 at % and less than bcI, and the biocide concentration (bcII) of the inner layer increases in a direction from the main body toward the outer layer. 2. The medical product of claim 1 , wherein the inner layer has a thickness (d 1 ) of at least 0.2 μm. 3. The medical product of claim 1 , wherein the outer layer has a thickness (d 2 ) of at least 0.5 μm. 4. The medical product of claim 1 , wherein bcI is substantially constant throughout the outer layer. 5. The medical product of claim 1 , the hard material coating comprising one or more of TiN, TiAlN, AlTiN, CrN, WC/C or a-C:H. 6. The medical product of claim 1 , wherein the biocide is a non-organic biocide. 7. The medical product of claim 6 , wherein the non-organic biocide is silver. 8. The medical product of claim 1 , wherein the outer layer has a hardness of 17 to 32 GPa. 9. The medical product of claim 1 , wherein the inner layer is diamond-like carbon (DLC).
Assignees
Inventors
Classifications
Heavy metals; Compounds thereof · CPC title
having two or more layers · CPC title
Biocides, antimicrobial agents, antiseptic agents · CPC title
Silver, e.g. silver sulfadiazine · CPC title
Biologically active materials, e.g. therapeutic substances {(A61L31/047 takes precedence)} · CPC title
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- What does patent US12022822B2 cover?
- A medical product including an antibacterial hard material coating, which is applied to a main body and which includes biocide. The hard material coating includes at least one inner layer and one outer layer, wherein the biocide concentration in the outer layer is substantially constant and greater than the biocide concentration in the inner layer and the biocide concentration in the inner laye…
- Who is the assignee on this patent?
- Oerlikon Surface Solutions Ag Pfaffikon, Oerlikon Surface Solutions Ag Pfaeffikon
- What technology area does this patent fall under?
- Primary CPC classification A61L27/28. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Jul 02 2024 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).