Lordotic interbody spinal fusion implants

Details Lordotic interbody spinal fusion implants Lordotic interbody spinal fusion implants

A - Human Necessities

61

F

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

Patent

CA 2223964

The present invention is directed to interbody spinal fusion implants (100) having a structural configuration that provides for the maintaining and creating of the normal anatomic angular relationship of two adjacent vertebrae (V2, V3) of the spine (S) to maintain and create spinal lordosis. The spinal fusion implants (100) of the present invention are sized to fit within the disc space created by the removal of disc material between two adjacent vertebrae (V2, V3) and conform wholly or in part to the disc space created. The spinal fusion implants (100) of the present invention have upper (112) and lower (114) surfaces that form a support structure for bearing against the end plates of the adjacent vertebrae (V2, V3). The upper (112) and lower (114) surfaces are disposed in converging angular relationship to each other such that the implants (100) of the present invention have an overall wedged shape in an elevation side view.

Cette invention concerne des arthrodhèses intersomatiques du rachis (100), pourvues d'une configuration structurale garantissant le maintien et la création de relations angulaires normales du point de vue anatomique de deux vertèbres contiguës (V2, V3) du rachis (S), permettant de maintenir et de créer une lordose du rachis. Les arthrodhèses intersomatiques du rachis (100) selon l'invention sont d'une taille leur permettant de s'insérer dans l'espace intervertébral né de l'ablation de substance discale se trouvant entre deux vertèbres contiguës (V2, V3) et d'épouser entièrement ou en partie la forme de l'espace intervertébral ainsi créé. Elles ont des surfaces supérieure (112) et inférieure (114) constituant une structure de support destinée à venir en contact avec les plateaux vertébraux des vertèbres contiguës (V2, V3). Ces surfaces supérieure (112) et inférieure (114) sont disposées l'une par rapport à l'autre selon un angle convergeant de sorte que les arthrodhèses de l'invention (100) sont, dans l'ensemble, cunéiformes, vues de côté.

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