Interspinous process implant with binder and method

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/44 (2006.01)

Patent

CA 2582527

Systems in accordance with embodiments of the present invention can include an implant comprising a spacer for defining a minimum space between adjacent spinous processes, a distraction guide for piercing and distracting an interspinous ligament during implantation, and a binder for limiting or preventing flexion motion of the targeted motion segment. The binder can be secured to a brace associated with the implant during implantation by a capture device. In one embodiment, the capture device includes a fixed piece extending from the brace and a slidable piece associated with the fixed piece. A fastener can be rotated to pinch the binder between the slidable piece and a wall of the brace, securing the binder. A physician need not know the length of the binder prior to implantation, reducing the time required to perform a procedure.

La présente invention concerne des systèmes pouvant comporter un implant comprenant un écarteur définissant un espacement minimum entre deux apophyses épineuses successives, un déviateur pour percer et dévier un ligament interspinal pendant l'implantation, et un lien pour limiter ou interdire le mouvement du segment à mouvements visé. Le lien peut être fixé à un appareil orthopédique associé à l'implant pendant l'implantation au moyen d'un dispositif d'immobilisation. Dans un mode de réalisation, le dispositif d'immobilisation comporte une pièce fixe partant de l'appareil orthopédique et une pièce coulissante associée à la pièce fixe. Il est possible de faire tourner une fixation pour pincer le lien entre la pièce coulissante et une paroi de l'appareil orthopédique, bloquant ainsi le lien. Le praticien n'a pas besoin de connaître la longueur du lien avant l'implantation, ce qui demande moins de temps pour la procédure.

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