Resilient knee implant and methods
US8771363B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 19, 2011 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Mar 29, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2300/64
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This disclosure is directed to a resilient interpositional arthroplasty implant for application into a knee joint to pad cartilage defects, cushion a joint, and replace or restore the articular surface, which may preserve joint integrity, reduce pain and improve function. The implant may endure variable joint compressive and shear forces and cyclic loads. The implant may repair, reconstruct, and regenerate joint anatomy, and thereby improve upon joint replacement alternatives. Rather than using periosteal harvesting for cell containment in joint resurfacing, the walls of this invention may capture, distribute and hold living cells until aggregation and hyaline cartilage regrowth occurs. The implant may be deployed into debrided joint spaces, molding and conforming to surrounding structures with sufficient stability to avoid extrusion or dislocation. Appendages of the implant may repair or reconstruct tendons or ligaments, and an interior of the implant that is inflatable may accommodate motions which mimic or approximate normal joint motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.