Patent ID: 8672945
Filing Date: 2014-03-18
Classification: A61B

Abstract:
1. A method for positioning a bone cutting guide relative to a bone, comprising the steps of: providing a cutting guide having at least two contact members intended for contacting the bone surface, wherein at least one of said at least two contact members is adjustably positionable relative to the cutting guide along an axis extending outwardly from the cutting guide so to permit a distance from a distal end of the contact member to the cutting guide, that defines a length of the contact member, to be adjustable and to permit the contact member to be fixed to the cutting guide in different positions along the axis resulting in the contact member having a variable fixed length; determining a theoretical position of said cutting guide with respect to a three-dimensional model of the bone; determining on the three-dimensional model of the bone the areas or points of contact at which the contact members will contact the bone when the cutting guide is positioned at the theoretical position; determining an adjustment value for a displacement of at least one of the contact members from the cutting guide such that when the contact member comes in contact with the bone, the position of the cutting guide corresponds to the theoretical position; displacing the at least one contact member from the cutting guide according to the determined adjustment value before the cutting guide is applied to the bone; and applying the cutting guide on the bone.