Intervertebral allograft spacer

Details Intervertebral allograft spacer Intervertebral allograft spacer

A - Human Necessities

61

F

A61F 2/44 (2006.01)

Patent

CA 2338881

An allogenic implant (10; 40; 50; 70), particularly an allogenic intervertebral implant (10; 40; 50; 70; 80) for fusing vertebrae is disclosed. The implant (10; 40; 50; 70; 80) is a piece of allogenic bone conforming in size and shape with portions of end plates of a vertebrae. The implant (10; 40; 50; 70; 80) has a wedge-shaped profile to restore disc height and the natural curvature of the spine. The top and bottom surfaces (14; 16) of the implant have a plurality of teeth (12) to resist expulsion and provide initial stability. The implant (10; 40; 50; 70; 80) according to the present invention provides initial stability needed for fusion without stress shielding.

L'invention concerne un implant (10; 40; 50; 70) allogénique, notamment un implant (10; 40; 50; 70; 80) intervertébral allogénique servant à fusionner des vertèbres. L'implant (10; 40; 50; 70; 80) est une pièce d'os allogénique dont la taille et la forme sont adaptées à des parties de plateaux vertébraux. L'implant (10; 40; 50; 70; 80) présente un profil en biseau en vue de rétablir la hauteur du disque et la courbure naturelle du rachis. Les surfaces (14; 16) supérieure et inférieure de l'implant comportent plusieurs dents (12) conférant une résistance contre l'expulsion et assurant une stabilité initiale. L'implant (10; 40; 50; 70; 80) de la présente invention permet d'assurer la stabilité initiale requise pour une fusion sans bouclier contre les contraintes.

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