Spinal cage
US9427331B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 2014 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Jul 15, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/30579
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A spinal cage includes first and second spinal attachment members attachable to vertebrae, the first and second spinal attachment members articulating with one another by means of an articulation joint, and a wedge element arranged for wedging between the first and second spinal attachment members. An actuator is linked to the wedge element for moving the wedge element axially with respect to the first and second spinal attachment members. The actuator includes a threaded member adjacent the wedge element and a biasing device positioned between at least one of the first and second spinal attachment members and the wedge element. Upon turning of the threaded member, the wedge element is advanced with respect to the articulation joint so that the first and second spinal attachment members are tilted or parallel to each other. The biasing device applies a biasing force on the wedge element to move the wedge element axially.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.