Fixed-bearing knee prosthesis
US8470047B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2007 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | May 17, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0025
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A fixed-bearing prosthesis includes a femoral component having a medial condyle surface and a lateral condyle surface. The knee prosthesis also includes a bearing having a medial bearing surface configured to articulate with the medial condyle surface of the femoral component, and a lateral bearing surface configured to articulate with the lateral condyle surface of the femoral component. A tibial tray is secured to the bearing. The tibial tray has a platform with an elongated stem extending downwardly from a lower surface thereof. A peripheral rail extends along at least an anterior section of the perimeter of the tray's platform. The peripheral rail extends upwardly from an upper surface of the platform. A retaining rail extends upwardly from the upper surface of the platform and posteriorly away from the peripheral rail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.