Knee joint endoprosthesis for replacing the articular surfaces of the tibia
US5413608A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 17, 1993 |
| Grant date | May 9, 1995 |
| Priority date | — |
| Expiry date | Sep 17, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/3868
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Knee joint endoprosthesis for replacing the articular surfaces of the tibia, the endoprosthesis comprising a bearing part (1), which is to be anchored on the bone and has an upper bearing surface (2), and a plateau (3) which is to be secured on the said bearing part. The plateau is rotatable on the bearing surface (2) about a journal (6, 15) which co-operates with a bore (12) in the plateau (3). The bore has a flange (13) which co-operates with a removable collar (14) limiting the journal at the top. The journal is composed of a projection on the bearing part (1) and a securing part arranged on the collar (14), which can be joined together by means of one of these two parts as outer part (15) containing a bore into which the other part as inner part (6) can be inserted. In order to secure these two parts on one another, fixing means (9) are provided which can be formed by a screw arranged transversely in the journal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.