Biomaterial, joint prosthesis using the biomaterial and method of producing the same
US9034414B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 21, 2014 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Feb 21, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31536
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The object of the present invention is to provide a joint prosthesis, bearing material and a production method thereof, which suppresses wear in a sliding section and suppresses the production of abrasive powder even during repeated daily operation. To achieve the object, there is provided a biomaterial comprising: a substrate made of metal, alloy or ceramic; and a biocompatible material layer laminated on the substrate, wherein hydroxyl groups are formed on the substrate by surface-treating, while the biocompatible material layer comprises a polymer containing phosphorylcholine groups, the substrate and the biocompatible material layer are bound via a binder layer which is combined with the hydroxyl groups of the substrate and with the biocompatible material layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.