Implantable mobile bearing prosthetics
US8998997B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2010 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Jun 8, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/30884
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A knee prosthesis including a femoral implant, a tibial implant, a tibial insert and a cam post. The femoral implant is secured to a femur and has a gap for receiving a natural PCL. The tibial implant is secured to a tibia. The tibial insert comprises a medial cavity with a rotational axis. The tibial insert has articulating surfaces that match the contours of the condyles of the femoral implant and a notch for retaining the natural PCL. The tibial insert has a medial boss that aligns with the medial cavity allowing it to rotate about the rotational axis. A post is secured to the tibial implant and enters a hole of the tibial insert providing anterior and posterior stops for the rotation of the tibial insert about the rotational axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.