Tibial insert reinforcement pin
US5658344A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 29, 1995 |
| Grant date | Aug 19, 1997 |
| Priority date | — |
| Expiry date | Dec 29, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00179
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A knee prosthesis includes a femoral component, a patella insert, a tibial bearing insert, a tibial tray and a reinforcement pin. The reinforcement pin is constructed such that it includes a ribbed region comprised of one or more circumferentially oriented ribs. The diameter of the ribbed region of the pin exceeds that of the non-ribbed region of the pin. The reinforcement pin is adapted to seat within a bore formed in the tibial bearing insert in an interference fit. A distal portion of the pin protrudes from the inferior surface of the tibial bearing insert and is adapted to fit, in a clearance fit, within a bore formed in a superior surface of the tibial tray.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.