Hybrid tibial tray knee prosthesis
US5480444A · kind A · utility
56Cited by
27References
13Claims
0Family size
Inventors
Key dates
| Filing date | Jun 2, 1994 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | Jun 2, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00395
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A one-piece hybrid tibial tray component of a knee replacement prothesis includes a laterally extending plate having a proximal surface, a distal surface which includes a peripheral surface for receiving bone cement and a central surface which promotes bone ingrowth and a central stem extending from the distal surface and which is perpendicular thereto. The distal surface is adapted to fit against the upper end of a patient's tibia as part of a knee replacement surgical procedure and provides both initial fixation via the cement bonding as well as long term fixation due to bone ingrowth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.