Tibial knee component with a mobile bearing
US6210445A · kind A · utility
245Cited by
48References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 26, 1999 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Oct 26, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/3886
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An orthopaedic knee component for implanting within a proximal tibia includes a tibial tray having a distally extending stem, a proximal tibial plateau and an annular shaped recess extending into the tibial plateau. The recess has a substantially constant radius of curvature about an axis of rotation. A bearing carried by the tibial tray has an articular bearing surface for engagement with a femoral component. The bearing has an annular shaped projection extending into the recess. The projection and the recess allow pivotal movement of the bearing relative to the tibial plateau about the axis of rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.