Patent ID: 9220519
Filing Date: 2015-12-29
Classification: A61B,A61F

Abstract:
1. A bone resection jig for an artificial knee joint replacement surgery, being used when a back of a distal end of a femur in a flexion position is resected after a tip of the distal end of the femur and a tip of a proximal end of a tibia in an extension position are resected horizontally, wherein the bone resection jig comprises: a spacer block comprised of a grip, a hollow box that is provided on an other end side of the grip and has a vertical hole therein, and a reference spacer part that extends out from the hollow box and is adapted be inserted into the resection region between femur and tibia; a reference pin guide which, when the femur and tibia are in the flexion position, is inserted into the vertical hole of the hollow box, extends on the reference spacer part to the other end side of the grip so as to come into contact with a resection plane of the tip of the distal end of the femur, and is formed with guide holes for guiding reference pins to be installed from a front side into the resection plane of the tip of the distal end of the femur; and an aiming member which is, after the spacer block has been removed in a front direction together with the reference pin guide from a space between the femur and tibia leaving the reference pins, brought onto the reference pins by being guided thereby, the aiming member being provided with an indicator that indicates a resection plane at a back of the distal end of the femur when the aiming member comes into contact with the resection plane of the tip of the distal end of the femur.