Instruments for adjustment osteotomy of the lower extremity

Details Instruments for adjustment osteotomy of the lower extremity Instruments for adjustment osteotomy of the lower extremity

A - Human Necessities

61

B

A61B 17/15 (2006.01) A61B 17/14 (2006.01)

Patent

CA 2220899

Instruments for the correctional osteotomy of the lower extremity, consisting of a securing frame (1) to be fitted to the skeleton and an angle-determining component (23), in which said angle-determining component can pivot about an axis (11) which can be freely selected in relation to the skeleton and can be directed to references on the extremity by means of pointers (26 and 27). The saw guide (25) fitted at a fixed angle to the pointers can thus be pivoted through the desired correction angle. It is thus possible to make precise corrective osteotomies directly on the skeletal references without any transfer errors from X-ray image-based plots.

L'invention concerne un ensemble d'instruments s'utilisant dans l'ostéotomie corrective de l'extrémité inférieure, qui comprend un cadre de fixation (1) à fixer sur le squelette et un élément (23) de détermination d'angles qui peut pivoter autour d'un point de rotation (11) pouvant être choisi librement par rapport au squelette et peut être orienté sur des références de l'extrémité à l'aide d'indicateurs (26 et 27). Le guide-scie (25) monté à angle fixe par rapport aux indicateurs peut ainsi pivoter de l'angle de correction voulu. Des ostéotomies correctives se rapportant directement aux références du squelette peuvent ainsi être pratiquées avec précision, sans risque d'erreurs de transfert dues à la détermination de points à partir d'images radiographiques.

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