Bi-directional fixating/locking transvertebral body screw/intervertebral cage stand-alone constructs having a central screw locking lever, and pliers and devices for spinal fusion
US8734516B2 · kind B2 · utility
Inventors
Key dates
| Filing date | May 22, 2009 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Oct 24, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0041
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bi-directional fixating transvertebral (BDFT) screw/cage apparatus including an intervertebral cage for maintaining disc height, and a method of inserting the same is provided. The intervertebral cage includes a first internal screw guide and a second internal screw guide, a first screw member and a second screw member, and a central screw locking lever coupled to the intervertebral cage, wherein the central screw locking lever prevents the first screw member and the second screw from pulling-out of the first internal screw guide and the second internal screw guide. The central screw locking lever includes a rotatable handle and stem portion, or a screw locking horizontal bracket. A pliers device for inserting and removing the bi-directional fixating transvertebral (BDFT) screw/cage apparatus, a posterior cervical and lumbar facet joint staple, and a staple gun for a posterior cervical and lumbar facet joint staple also are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.