In situ patellar fixing system
US8147497B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 29, 2008 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Dec 3, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/3859
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed is a patellar cutting jig for use in a knee joint surgical procedure. The jig grips and holds a patella in situ in spatial reference to the femur to enable the appropriate cut to be made to the patella to accurately accommodate the patello-femoral gap at the replacement knee joint. The patella jig has a referencing component that provides a landmark connection between the patella jig and the femur which enables the patella clamp of the jig to be oriented relative to the reference feature prior to gripping the patella. Thus a patella held in the clamp is fixed in the cutting jig an appropriate orientation relative to the femur prior to its resection. Cutting the patella while it is referenced to the patellar groove on the femur increases the accuracy of the resection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.