Intervertebral implant with joint parts mounted on roller bodies
US7473276B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2002 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Dec 17, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0033
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intervertebral implant (1), including an upper section (10) provided with a ventral side area (11), a dorsal side area (12), two lateral side areas (13,14), a top apposition surface (15) and a bottom surface (16), a lower section (20) provided with a ventral side area (21), a dorsal side area (22), two lateral side areas (23,24), a bottom apposition surface (25) and a top surface (26), wherein the two sections (10,20) are moveable in relation to each other by means of two joints (38;39) arranged between the two sections (10;20), and wherein each of the joints (38;39) has a swivel axle (3;4) and the two swivel axles (3;4) are arranged perpendicular to each other, each of the joints (38;39) comprises at least one axle (34;36) coaxial to the relevant swivel axle (3;4) and a bearing shell (35;37) receiving the axle (34;36), and roll bodies (70) are inserted between the axles (34;36) and the bearing shells (35;37).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.