Trial wedges with magnetic attachments

Details Trial wedges with magnetic attachments Trial wedges with magnetic attachments

A - Human Necessities

61

F

A61F 2/30 (2006.01) A61F 2/36 (2006.01) A61F 2/38 (2006.01) A61F 2/46 (2006.01)

Patent

CA 2247195

An orthopaedic surgical trial instrument for use in joint remplacement (e.g., knee, hip, shoulder) surgery includes a trial body (11) of selected size and shape that can receive trial shims or wedges (20) of differing size and shape so that a surgeon can construct a trial during surgery that closely fits a patient's anatomy. Magnetic members (29) aid in holding a selected wedge to a selected trial. Corresponding projections (27, 11B) and recesses (11A, 28) prevent rotation of wedges (20) with respect to the selected trial (11).

La présente invention concerne un appareil provisoire de chirurgie orthopédique destiné à la chirurgie substitutive, par exemple du genou, de la hanche et de l'épaule. Cet appareil comporte un corps provisoire (11) de forme et de calibre choisis pouvant recevoir des cales d'épaisseur ou des éléments cunéiformes (20) de différents calibres et formes, ce qui permet au chirurgien de réaliser une orthèse provisoire pendant l'intervention, laquelle orthèse s'adapte exactement à l'anatomie du patient. Des adaptateurs magnétiques (29) permettent de maintenir un élément cunéiforme choisi sur une orthèse provisoire sélectionnée. Des protubérances (27, 11B) et des évidements (11A, 28) empêchent que les éléments cunéiformes (20) ne tournent par rapport à l'orthèse provisoire sélectionnée (11).

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