Adjustable intervertebral implant
US6443990B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2000 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Sep 19, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0009
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intervertebral implant in the form of a support unit with a central yoke and four legs extending in a direction is described. The legs are configured in two substantially mutually parallel planes spaced apart by the yoke and are abuttable as support surfaces against adjacent vertebrae. A guide cylinder extending from the yoke in the same direction as the legs has at least on threaded surface. A dilator member is adapted to be fixed to the guide cylinder and to deformably spread the legs of the intervertebral implant a predetermined amount. The gaps between the legs which the dilator member spreads may have grooves to arrest the dilator member in a predetermined location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.