Anterior expandable spinal fusion cage system
US6835206B2 · kind B2 · utility
Inventor
Key dates
| Filing date | May 13, 2002 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | Aug 3, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S623/908
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus and method for implanting an intervertebral cage containing a bone graft and fusing adjacent vertebrae together while maintaining or correcting the angular alignment and balance of the spine. An improved method for anterior interbody fusion to form a fused bone segment having a predetermined fixed angular orientation. The apparatus has a fusion cage and has a set of expansion caps that operably expand the cage from which one is selected to adjust the orientation between adjacent vertebrae with facing surfaces at a predetermined angle relative to each other. A connecting bolt is threaded to the rear of the cage unit to hold the cap in position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.