Artificial intervertebral disc having an articulating joint
US7214244B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2005 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Feb 21, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00029
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intervertebral device includes a first plate having an outer face and an inner face, and a second plate juxtaposed with the first plate, the second plate having an outer face, an inner face that opposes the first plate and a concavity that opposes the first plate. The device includes an elongated member extending from the first plate toward the second plate, the elongated member having a distal end with a spherical surface that is engageable with the concavity of the second plate for providing an articulating joint between the first and second plates. The device also includes a resilient member in contact with the elongated member for counteracting compressive loads on the plates, the resilient member being surrounded by the concavity of the second plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.