Spinal implant

US6746484B1 · kind B1 · utility

Assignee

• Society de Fabrication de Materiel Orthopedique, S.A. · FR

Inventors

• Mingyan Liu · Bourg-la-Reine, FR
• Philippe Bouquet · Persan, FR
• Hans-Jorg Meisel · Berlin, DE
• Daniel Chopin

Key dates

• Filing date: Sep 29, 2000
• Grant date: Jun 8, 2004
• Expiry date: Sep 29, 2020

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2310/00179
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A spinal cage implant (1) is adapted to be inserted in a damaged intervertebral disc for restoring the discal height and permitting an arthoesis. Implant (1) comprises a central part (3c) with walls (4) and terminal parts (5, 6) for bearing against the cortical bone (14) of the vertebral end plates (15, 16). Central part (3c) is adapted to penetrate the vertebral end plates (15, 16) and transversely projects from the terminal bearing parts (5, 6). Implant (1) bears against the vertebral end plates (15, 16) with terminal parts (5, 6) and contains bone graft material between walls (4) which penetrate the openings (19, 21) in the end plates (15, 16) and permit bone fusion between the two vertebrae (V1, V2). Implant (1) permits restoring the physiological lordosis and the intervertebral height