Total ankle replacement prosthesis
US10166110B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2017 |
| Grant date | Jan 1, 2019 |
| Priority date | — |
| Expiry date | Apr 25, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0033
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A total ankle replacement prosthesis may comprise a tibial implant, a talar implant, and an intermediate implant. The intermediate implant may fixedly attach to the tibial implant and may articulate with respect to the talar implant. The intermediate implant may have unequal front and back angular extent, so as to discourage a particular direction of subluxation, and a kit may be provided containing various such intermediate implants. Various features may be provided in regard to dovetails, fins, recesses, the placement of fins and pegs, and the shape of the perimeter of the tibial implant. Recesses may allow a surgical blade to slice a latch off of an already-installed intermediate implant, in order to allow its removal from the tibial implant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.