System and method for manufacturing arthroplasty jigs having...

A - Human Necessities – 61 – F

Patent

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A61F 2/46 (2006.01) G05B 19/4099 (2006.01)

Patent

CA 2730947

Disclosed herein is a method of defin-ing a mating surface in a first side of an arthroplasty jig. The mating surface is configured to matingly re-ceive and contact a corresponding patient surface in-cluding at least one of a bone surface and a cartilage surface. The first side is oriented towards the patient surface when the mating surface matingly receives and contacts the patient surface. The method may include: a) identifying a contour line associated with the patient surface as represented in a medical image; b) evaluat-ing via an algorithm the adequacy of the contour line for defining a portion of the mating surface associated with the contour line; c) modifying the contour line if the contour line is deemed inadequate; and d) employ-ing the modified contour line to define the portion of the mating surface associated with the contour line.

L'invention concerne un procédé de définition d'une surface de correspondance d'un premier côté d'un gabarit d'arthroplastie. La surface de correspondance est configurée pour recevoir en correspondance et entrer en contact avec une surface correspondante d'un patient, notamment la surface d'un os et/ou la surface d'un cartilage. Le premier côté est orienté en direction de la surface du patient lorsque la surface de correspondance reçoit en correspondance et entre en contact avec la surface du patient. Le procédé peut comprendre les étapes qui consistent à : a) identifier la ligne de contour associée à la surface du patient et représentée dans une image médicale, b) évaluer par un algorithme l'adéquation de la ligne de contour pour définir une partie de la surface de correspondance associée à la ligne de contour, c) modifier la ligne de contour si la ligne de contour s'avère inadéquate et d) utiliser la ligne de contour modifiée pour définir la partie de la surface de correspondance associée à la ligne de contour.

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