Intervertebral implant with cage and rotating element
US5888228A · kind A · utility
282Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 1998 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Feb 2, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00179
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The intervertebral implant comprises a frame-type cage (1) which is open at its top and base faces (11 and 12 respectively) with two lateral faces (13, 14), a front wall (15) and a rear wall (16). A rotating element (2) is mounted in the cage (1) so as to be capable of rotation. The outer surface of the rotating element (2) is provided with a helical structure (21). The helical structure (21) protrudes beyond the cover and base faces (11, 12) outside the confines of the cage (1). The front wall (15) has an aperture (17) for the introduction of a drive tool with which the rotating element (2) in the cage (1) can be made to rotate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.