Improved spinal fusion implants and tool for insertion

Details Improved spinal fusion implants and tool for insertion Improved spinal fusion implants and tool for insertion

A - Human Necessities

61

F

A61F 2/44 (2006.01) A61F 2/46 (2006.01) A61B 17/02 (2006.01) A61F 2/00 (2006.01) A61F 2/28 (2006.01) A61F 2/30 (2006.01)

Patent

CA 2378364

A vertebral-column device that is suitable to be received in an intervertebral space between two dorsal vertebrae, said prosthesis comprising a curved strip of biocompatible material and the width of said strip being such that after placement said strip makes contact with the aforementioned vertebrae, the strip being manufactured from a material that can undergo great deformations before permanent deformation arises, and the strip being curved in a shape in which the extremities are situated apart from one another and the radius of the curved parts and the thickness of the strip being chosen in such a way that when the strip is bent out into an approximately straight strip scarcely any permanent deformation arises, in which case the strip which has been bent out into an approximately straight strip is capable of being introduced into an intervertebral space where the strip assumes its original curved shape.

L'invention concerne un dispositif de colonne vertébrale conçu pour être placé dans un espace intervertébral entre deux vertèbres dorsales. Cette prothèse comporte une bande courbe constituée d'une matière biocompatible, la largeur de laquelle permettant, une fois posée, de venir au contact avec les vertèbres précitées. La bande est fabriquée dans une matière pouvant supporter d'importantes déformations avant de subir une déformation permanente. Cette bande est courbée selon une forme selon laquelle les extrémités sont espacées l'une de l'autre, le rayon des parties courbées et l'épaisseur de la bande étant déterminés de façon que, lorsque la bande est redressée et adopte une forme sensiblement droite, elle ne subit aucune déformation permanente. La bande qui a été redressée en une position quasiment droite peut ainsi être introduite dans un espace intervertébral, où elle reprend sa forme courbe originale.

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