Vertebral surface preparation instrument

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/16 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2759212

An instrument (10) for preparing a surface of a vertebra, such as a vertebral endplate, for receipt of a spinal disc implant. The instrument includes a working tool (14) with implements (90) on one or more surfaces (92, 94) of the working tool that act on the vertebral surface. The instrument includes a rotary- to- linear translation system to cause the working tool to move; for example, from side- to- side, top- to-bottom, or along a path that includes side- to- side and top- to-bottom aspects. The rotary- to- linear translation system may include a drive shaft (20) having a cam pin (18) at a distal end, and a cam follower slot (22) at an anterior end of the working tool.

L'invention porte sur un instrument pour préparer une surface d'une vertèbre, telle qu'un plateau vertébral, pour recevoir un implant de disque spinal. L'instrument comprend un outil de travail qui s'applique sur une ou plusieurs surfaces de l'outil de travail qui agissent sur la surface vertébrale. L'instrument comprend un système de translation rotatif en linéaire pour amener l'outil de travail en déplacement; par exemple, de côté à côté, de haut en bas, ou le long d'un chemin qui comprend les aspects côté à côté et de haut en bas. Le système de translation rotatif en linéaire peut comprendre un arbre d'entraînement ayant une tige de came à une extrémité distale, et une fente de galet de came à une extrémité antérieure de l'outil de travail.

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