Prosthesis for restoring motion in an appendage or spinal joint and an intervertebral spacer
US7799083B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2006 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Jan 29, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7532
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A motion restoring prosthesis to be interposed between the ends of two bones adjoining a mammalian appendage or spinal joint is formed of two components with the components having inner cooperating articulating surfaces and outer bone engaging surfaces. At least one of the components has an inner section made of relatively hard, stiff material defining one or the articulating surfaces and an outer section made of a softer material defining the bone engaging surface. The softer material having a hardness/stiffness characteristic compatible with the bone to reduce stress shielding and more evenly distribute the forces from the articulating surfaces to the associate bone interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.