Multipiece allograft implant

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/44 (2006.01)

Patent

CA 2537122

An allogenic implant (10) for use in intervertebral fusion is formed from two parts. The first part (20), composed of cortical bone, provides mechanical strength to the implant, allowing the proper distance between the vertebrae being treated to be maintained. The second part (30), composed of cancellous bone, is ductile and promotes the growth of new bone between the vertebrae being treated and the implant, thus fusing the vertebrae to the implant and to each other. The implant is sized and shaped to conform to the space between the vertebrae. Teeth (12) formed on the superior (14) and inferior (16) surfaces of the implant prevent short-term slippage of the implant.

L'invention concerne un implant allogénique destiné à la fusion intervertébrale et formé à partir de deux pièces. La première pièce, constituée d'os cortical, confère une résistance mécanique à l'implant, ce qui permet de maintenir une distance appropriée entre les vertèbres en cours de traitement. La seconde pièce, constituée d'os spongieux, est ductile et favorise la croissance d'un nouvel os entre les vertèbres en cours de traitement et l'implant, d'où la fusion des vertèbres avec l'implant et l'une avec l'autre. L'implant présente une taille et une forme correspondant à l'espace intervertébral. Des dents formées sur les surfaces supérieure et inférieure de l'implant empêchent un glissement à court terme dudit implant.

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