Milling instrumentation and method for preparing a space...

A - Human Necessities – 61 – B

Patent

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A61B 17/56 (2006.01) A61B 17/02 (2006.01) A61B 17/16 (2006.01) A61B 17/17 (2006.01) A61B 17/70 (2006.01) A61F 2/00 (2006.01) A61F 2/44 (2006.01)

Patent

CA 2261654

An apparatus and method for placing ad- jacent vertebrae at a fixed distance and an- gular relationship relative to each other, fix- ing the vertebrae in the position by use of a milling block (100) engaging each of the adja- cent vertebrae, and then using a milling instru- ment (200), the depth, length and excursion of which from side to side are controlled by the apparatus to machine out a defined thickness of bone and a space of defined length, height, width and shape in preparation for receiving an inter-body spinal implant of graft or known size and configuration, are disclosed.

L'invention porte sur un appareil et un procédé servant à fixer des vertèbres voisines à une distance donnée et selon une orientation angulaire donnée l'une par rapport à l'autre, et consistant à maintenir lesdites vertèbres en place à l'aide d'un bloc de meulage (100) en contact avec chacune des vertèbres, puis à l'aide d'un moyen de meulage (200), à définir à l'aide de l'appareil la longueur, la profondeur et le débattement entre un côté et l'autre, puis à enlever une épaisseur donnée d'os pour créer un espace de longueur, de hauteur et de forme voulues destiné à recevoir un implant spinal ou une greffe intervertébrale de dimensions et de forme connues.

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