Centrally articulating spinal device and method

Details Centrally articulating spinal device and method Centrally articulating spinal device and method

A - Human Necessities

61

F

A61F 2/44 (2006.01)

Patent

CA 2552335

An artificial spinal joint (100) for creating at least a portion of a coupling between a superior vertebra and an inferior vertebra comprises an articulating joint replacement assembly (102). The articulating joint replacement assembly comprises an anterior joint replacement (106, 112) component extending into an intervertebral disc space between the superior and inferior vertebrae, a first posterior joint replacement component (108, 114), and a first bridge component (110, 116) coupled between the anterior joint replacement component and the first posterior joint replacement component. The artificial spinal joint further comprises a support joint replacement assembly (104). The support joint replacement assembly comprises an anterior support component (146, 152) extending into an intervertebral disc space between the superior and inferior vertebrae, a second posterior joint replacement component (148, 154), and a second bridge component (150, 156) coupled between the anterior support component and the second posterior joint replacement component. The anterior support component is engaged with the articulating joint replacement component.

L'invention concerne une articulation vertébrale artificielle pour créer au moins une partie d'une liaison entre une vertèbre supérieure et une vertèbre inférieure. Cette articulation comprend un assemblage de remplacement d'articulation articulé. Cet assemblage de remplacement d'articulation articulé comprend un composant de remplacement d'articulation antérieure s'étendant dans l'espace du disque intervertébral, entre la vertèbre supérieure et la vertèbre inférieure, un composant de remplacement d'articulation postérieure, et un premier composant de pont couplé entre le composant de remplacement d'articulation antérieure et le premier composant de remplacement d'articulation postérieure. L'articulation vertébrale artificielle comprend également un assemblage de remplacement d'articulation de support. L'assemblage de remplacement d'articulation de support comprend un composant de support antérieur s'étendant dans l'espace de disque intervertébral, entre la vertèbre supérieure et la vertèbre inférieure; un second composant de remplacement d'articulation postérieure, et un second composant de pont couplé entre le composant de support antérieur et le second composant de remplacement d'articulation postérieure. Le composant de support antérieur est emboîté dans le composant de remplacement d'articulation articulé.

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