Intramedullary trial fixation device

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/46 (2006.01) A61F 2/40 (2006.01) A61F 2/00 (2006.01) A61F 2/30 (2006.01)

Patent

CA 2478079

An intramedullary fixation device (10) for use in securing a trial (52) in the medullary canal of a bone to determine the offset and orientation of a prosthetic implant for replacement of a joint articulating surface of the bone is disclosed. The fixation device comprises a body (14) for receiving a trial and a fixation portion (12) for engaging the trial. A system for use in surgical repair of a joint comprising a selection of prosthetic implants of various sizes, a selection of trials of various sizes corresponding to the sizes of the implants, a selection of fixation devices of various sizes corresponding to the sizes of the trials, a trial fixation device driver for inserting the fixation device and attached trial into the canal of a bone, and a trial device extractor for removing the fixation device from the resected bone is disclosed. Methods of using the fixation device and system of the invention are disclosed.

L'invention concerne un dispositif de fixation intramédullaire (10) servant à assurer un gabarit (52) dans le canal médullaire d'un os afin de déterminer le décalage et l'orientation d'un implant prothétique destiné à remplacer d'une surface d'articulation de l'os. Le dispositif de fixation comprend un corps (14) de réception d'un gabarit et d'une partie fixation (12) venant en prise avec ledit gabarit. L'invention concerne un système servant dans la réparation chirurgicale d'une articulation comprenant une sélection d'implants prothétiques de différentes dimensions, de gabarits de différentes dimensions correspondant à celles des implants, de dispositifs de fixation de différentes dimensions correspondant à celles des gabarits, un pilote de dispositif de fixation de gabarit conçu pour introduire ledit dispositif et le gabarit fixé dans le canal d'un os et un extracteur de dispositif de gabarit conçu pour retirer le dispositif de fixation de l'os réséqué. Elle concerne également des procédés faisant appel à ce dispositif de fixation et au système associé.

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