Patent ID: 7881771
Filing Date: 2011-02-01
Classification: A61B

Abstract:
1. A bone reposition device, comprising: first and second bone supports for supporting first and second portions of a fractured or osteotomized bone about a fracture or osteotomize site; first and second marker holders attachable to the first and second bone supports; the first and second marker holders respectively include first and second fiducial markers for defining relative orientations and positions of the first and second bone portions, respectively, and each fiducial marker having a fixed position relative to its respective bone portion when the marker holders are attached to the bone supports, respectively, a series of connection members extending between the first and second bone supports; and a plurality of joints each having a single degree of freedom of movement and providing relative movement between adjacent connection members and between connection members adjacent the first and second bone supports, the plurality of joints including at least six joints and allowing controllable relative rotation or translation of the first bone support relative to the second bone support about six degrees of freedom, the first and second fiducial markers for determination of an adjustment factor being representative of a relative displacement required to move the first and second bone portions to a reduced arrangement; the first and second bone supports being disengageable from the bone portions so as to allow the joints to be moved and locked relative to each other and in accordance with the adjustment factor, and the first and second bone supports being reattachable to the respective bone portions after the joints are moved and locked relative to each other in accordance with the adjustment factor so as to maintain the first and second bone portions at said reduced arrangement.