Arthroplasty prostheses with multi-axis fixation
US11007064B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 5, 2019 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Apr 5, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0016
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Arthroplasty components include an articular surface and a bone-facing surface. In some examples, the bone-facing surface bears at least one anchoring element adapted for an oblique implantation trajectory. The anchoring element includes a reinforcement plate, a dowel, and surface features. Each surface feature resists forces acting along a different direction. In other examples, the bone-facing surface bears anchoring elements that deform along the primary or longest axis of the anchoring element during insertion. In yet other examples, the bone-facing surface is enlarged relative to the articular surface so that at least a portion of the perimeter of the articular surface is circumscribed by the perimeter of the bone-facing surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.