Selectively expanding spine cage, hydraulically controllable in three dimensions for enhanced spinal fusion
US8394143B2 · kind B2 · utility
162Cited by
48References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2007 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Jun 2, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00796
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A selectively expanding spine cage has a minimized diameter in its unexpanded state that is smaller than the diameter of the neuroforamen through which it passes in the distracted spine. Hydraulic extension of extendable members permit the cage to conformably engage between vertebral bodies to effectively distract the disc space and rigidly fix the spine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.