Patent ID: 7429270
Filing Date: 2008-09-30
Classification: A61F

Abstract:
1. An intervertebral implant for implantation between adjacent vertebrae, the implant having a central axis, the implant comprising: a bottom closing plate having an external surface extending generally transversely to the central axis for contacting at least a portion of one of the adjacent vertebrae; a bottom cover plate in contact with the bottom closing plate, wherein at least one of the bottom closing plate and the bottom cover plate is substantially rigid; a top closing plate having an external surface extending generally transversely to the central axis for contacting at least a portion of the other adjacent vertebrae; a top cover plate in contact with the top closing plate, wherein at least one of the top closing plate and the top cover plate is substantially rigid; a central part provided between the top and bottom closing plates, the central part including a fiber system and a core, the fiber system being at least partially joined to the cover plates, and at least partially surrounding the core, and a sheathing comprising an elastic sheathing body, the sheathing body at least partially surrounding the central part and being connected to the top and bottom cover plates; wherein the core is an elastically formed body having a cavity, the cavity being filled at least partially with an incompressible liquid, the liquid being at least partially surround by the elastic formed body, the fiber system being wound on the elastic formed body.