A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/70 (2006.01) A61B 17/80 (2006.01) A61B 17/86 (2006.01) A61B 17/88 (2006.01)
Patent
CA 2579148
Systems and methods are provided that include a plate member (120, 140, 160, 180) engageable to the spinal column with an anchor assembly (20, 320, 420). The anchor assembly (20, 320, 420) includes a coupling member (30, 130, 330, 430) having a post (32, 332, 432) extending through at least one opening of the plate member (120, 140, 160, 180) and an anchor member (70) pivotally captured in a receiver portion (34, 334, 434) of the coupling member (30, 130, 330, 430) below a lower surface of the plate member (120, 140, 160, 180). A locking member (90) secures the plate member (120, 140, 160, 180) to the coupling member (30, 130, 330, 430). The coupling member (30, 130, 330, 430) may include an extended post (332, 432) with a proximal removable portion. The extended post (332, 432) facilitates placement of the plate member (120, 140, 160, 180) in position relative to the anchor assembly (20, 320, 420) when engaged to the patient and may be employed to reduce the plate member (120, 140, 160, 180) toward the anchor assembly (20, 320, 420) when engaged to a vertebra.
L'invention porte sur des systèmes et des procédés comprenant un élément de plaque (120, 140, 160, 180) se fixant à la colonne vertébrale au moyen d'un ensemble d'ancrage (20, 320, 420). L'ensemble d'ancrage (20, 320, 420) comprend un élément de raccordement (30, 130, 330, 430) doté d'une tige (32, 332, 432) s'étendant à travers au moins une ouverture de l'élément de plaque (120, 140, 160, 180) et un élément d'ancrage (70) retenu pivotant dans une partie réceptacle (34, 334, 434) de l'élément de raccordement (30, 130, 330, 430) en-dessous d'une surface inférieure de l'élément de plaque (120, 140, 160, 180). Un élément de blocage (90) fixe solidement l'élément de plaque (120, 140, 160, 180) à l'élément de raccordement (30, 130, 330, 430). L'élément de raccordement (30, 130, 330, 430) peut être doté d'une tige allongée (332, 432) ayant une partie mobile proximale. La tige allongée (332, 432) facilite le positionnement de l'élément de plaque (120, 140, 160, 180) par rapport à l'ensemble d'ancrage (20, 320, 420) lors de sa fixation sur le patient et peut être utilisée pour réduire l'élément de plaque (120, 140, 160, 180) dans l'ensemble d'ancrage (20, 320, 420) lors de sa fixation à une vertèbre.
Blackwell Jonathan
Branch Charles L. Jr.
Melkent Anthony J.
Smart & Biggar
Warsaw Orthopedic Inc.
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