Proximal interphalangeal joint prothesis
US10098749B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jul 28, 2016 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Sep 2, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00029
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An interphalangeal prosthesis (10) includes a mobile element (12), a proximal fixation element (22), and a distal fixation element (24). The mobile element (12) includes a proximal portion (42, 62, 94) and a distal portion (43, 64, 92), and the proximal portion includes three proximal mobile coupling contiguous surfaces (46, 48, 50) and a proximal mobile coupling protrusion (52), and the distal portion includes a distal coupling mobile surface (54) and a distal mobile coupling protrusion (56), and the proximal portion and the distal portion move relative to each other primarily in an axis of rotation perpendicular to a plane that extends through the proximal mobile coupling protrusion, the three proximal mobile coupling contiguous surfaces, the distal coupling mobile surface, and the distal mobile coupling protrusion in an implanted configuration. The proximal fixation element (22) couples to the three proximal mobile coupling contiguous surfaces and the proximal mobile coupling protrusion of proximal portion, and couples to a joint bone surface and a bone canal. The distal fixation element (24) couples to the distal coupling mobile surface and the distal mobile coupling protrusion…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.