Osteotomy guide and method of cutting the medial distal...

A - Human Necessities – 61 – B

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A61B 17/17 (2006.01) A61B 17/15 (2006.01)

Patent

CA 2672555

An osteotomy guide (2,102,302) is provided for cutting a bone, such as the medial distal tibia (50), for example, to facilitate an ankle replacement. The osteotomy guide (2,102,302) includes a positioning device (4,104,304) having a number of fixation points (6,8; 106, 108), a first guide member (10, 110) structured to align with a first portion (52) of the bone (50), in order to perform a first procedure on the first portion (52), and a second guide member (12,112,312) structured to align with a second portion (54) of the bone (50), in order to perform a second procedure on the second portion (54). The fixation points (6,8;106,108) engage the bone (50) and maintain alignment of the first guide member (10,110) with respect to the first portion (52) of the bone (50) during the first procedure, and maintain alignment of the second guide member (12,112,312) with respect to the second portion (54) of the bone (50) during the second procedure, in order that the first procedure and the second procedure are substantially reproducible.

L'invention concerne un guide d'ostéotomie (2, 102, 302) pour découper un os, tel que le tibia distal médian (50), par exemple, pour faciliter un remplacement de la cheville. Le guide d'ostéotomie (2, 102, 302) comprend un dispositif de position (4, 104, 304) ayant un certain nombre de points de fixation (6, 8 ; 106, 108), un premier organe de guidage (10, 110) structuré pour s'aligner avec une première portion (52) de l'os (50) afin d'effectuer une première procédure sur la première portion (52), et un second organe de guidage (12, 112, 312) structuré pour s'aligner avec une seconde portion (54) de l'os (50), afin d'effectuer une seconde procédure sur la seconde portion (54). Les points de fixation (6,8 ; 106, 108) mettent en prise l'os (50) et maintiennent l'alignement du premier organe de guidage (10, 110) par rapport à la première portion (52) de l'os (50) pendant la première procédure, et maintiennent un alignement du second organe de guidage (12, 112, 312) par rapport à la seconde portion (54) de l'os (50) pendant la seconde procédure, afin que la première procédure et la seconde procédure soient sensiblement reproductibles.

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