Ankle prosthesis
US5824106A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 9, 1997 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Apr 9, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/0026
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ankle prosthesis comprising a tibial plate interacting with an intermediary element in order to constitute the articular surface of said prosthesis, while the intermediary element interacts with an astragalar plate secured to the astragalus, characterized by the fact that it comprises an articular surface (5) that is constituted on the intermediary element (3) by a cylindrical section (35) whose generant (36) is concave on the frontal plane and on the tibial plate (4), having a radius (r) whose center is located at the tibia, following a shape complementing that of the intermediary element (3) in order to achieve a precise interaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.