Anterior lateral spine cage-plate fixation device and technique
US6156037A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1998 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Oct 28, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0006
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An interbody fusion cage has an externally threaded stem projecting from a domed outer end. A contoured plate is provided with an aperture receivable on the stem. The stem threads receive a nut to fix the plate to the cage. Bone screws anchor the plate to vertebral bodies. A hemispherical surface on the plate and surrounding the stem-receiving aperture and bearing on the dome, accommodates universal angulation of the plate relative to the cage. In addition to a cage installation tool, there is a plate installation tool assembly including a cage installer, a plate holder, a nut holder and cage adjuster, a nut driver, and a plate holding prong controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.