Intersomatic cage, intervertebral prosthesis, anchoring...

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/44 (2006.01) A61B 17/064 (2006.01) A61F 2/46 (2006.01)

Patent

CA 2689236

An intersomatic cage, an intervertebral prosthesis, an anchoring device and an instrument for implantation of the cage or the prosthesis and the anchoring device are provided, as well as a system and a method for implanting spinal implants and anchoring devices in vertebrae. An intersomatic cage or an intervertebral prosthesis fit closely to the anchoring device (1), which includes a body (10) of elongated shape on a longitudinal axis, of curved shape describing, along the longitudinal axis, an arc whose dimensions and radius of curvature are designed in such a manner that the anchoring device (1) may be implanted in the vertebral plate of a vertebra by presenting its longitudinal axis substantially along the plane of the intervertebral space, where the anchoring device (1) is inserted, by means of the instrument, through a slot located in at least one peripheral wall of the cage (2A, 2B) or on at least one plate of the intervertebral disc prosthesis (2C) to penetrate into at least one vertebral plate.

La présente invention concerne une cage intersomatique, une prothèse intervertébrale, un dispositif d'ancrage et un instrument destiné à implanter la cage ou la prothèse et le dispositif d'ancrage, ainsi q'un système et un procédé destinés à implanter des implants rachidiens et ancrer des dispositifs dans les vertèbres. L'invention porte donc sur une cage intersomatique ou une prothèse intervertébrale étroitement fixée au dispositif d'ancrage (1), qui comprend un corps (10) de forme allongée sur un axe longitudinal, de forme courbée décrivant le long de l'axe longitudinal un arc dont les dimensions et le rayon de la courbe sont conçus de manière à pouvoir implanter le dispositif d'ancrage (1) dans la plaque vertébrale d'une vertèbre en présentant son axe longitudinal sensiblement le long du plan formé par l'espace intervertébral, où le dispositif d'ancrage (1) est inséré, au moyen de l'instrument, par une fente située dans au moins une paroi périphérique de la cage (2A, 2B) ou sur au moins une plaque de la prothèse de disque intervertébral (2C) afin de pénétrer dans au moins une plaque vertébrale.

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