Vapor deposited titanium and titanium-nitride layers for dental devices
US6994550B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2003 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | Oct 31, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K6/20
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A coating for a biomedical device is disclosed, including a metal layer and/or a ceramic layer, such as a layer of titanium (Ti) and a layer of titanium-nitride (TiN). The coating can form a coping for a crown for a tooth, the crown including a porcelain layer bonded to the titanium-nitride (TiN) layer. Methods for making and using a biomedical device are also disclosed, including vapor deposition of metal and/or ceramic layers, such as titanium (Ti) and titanium-nitride (TiN) layers. In one embodiment, the method includes forming a titanium (Ti) vapor that solidifies to form a titanium (Ti) layer; forming a titanium-nitride (TiN) vapor that coats the titanium (Ti) layer with a titanium-nitride (TiN) layer; and forming a porcelain layer on the titanium-nitride (TiN) layer. The porcelain can be sintered to form a dental crown or other device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.