Endoprosthesis component
US8241361B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 2008 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Dec 19, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/963
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoprosthesis component is formed from a ceramic material and in which the ceramic material is partially coated with a titanium alloy. An uncoated surface portion of the endoprosthesis component is designed to interact as slide surface with another endoprosthesis component. A coated surface portion of the endoprosthesis component is designed to establish a connection to a bone. The part of the ceramic material forming an interface to the coating has a roughness Ra of between 2.5 μM and 7 μM, creating a firm connection between the coating and the ceramic material. The invention further relates to a method for producing such an endoprosthesis component. To achieve the desired roughness of the surface, the ceramic component is presintered at a temperature of between 880° C. and 980° C. and is then treated with a blasting material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.