Patent ID: 6488685
Filing Date: 2002-12-03
Classification: A61B,Y10S

Abstract:
An extramedullary implant instrument for stabilization of fractured long bones consisting of a solid, elongated rod having identical substantially flat, partly tubular plates at each end of said rod,said implant being designed for rigid attachment to the nonfracture end of the bone by means of said partly tubular plates to permit said rod to provide longtudinal support to said fractured bone along the longtudinal axis of said bone, thereby maintaining the ununited bone fragments of said fractured bone in constant alignment with each other to effect osteosynthesis of said bones, said partly tubular plate on the ends of said implant being the sole means of fixed attachment of said implant to said fractured bone such that said rod section of said implant and said fractured bone are not fixedly attached to each other, said partly tubular plates each having at least two screw receiving holes therein, said partly tubular plates being generally rectangular in shape and having a wider cross-sectional diameter than the cross-sectional diameter of said rod section, said partly tubular plates having a generally flat outer surface and a generally concave inner surface to substantially conform to the surface curvature of said fractured bone, said partly tubular plates and said rod generally lying in different planes with respect to each other, the rod lying in a plane superior to said tubular plates, said partly tubular plates having a pre-determined angular setting in relation to each other and to said rod said angular setting being in conformity with the pre-fracture contour of the long bone to which said implant is to be attached, said implant, including said partly tubular plates and said rod section having a total length that is appropriate, after attachment, for restoration of the pre-fracture length of the particular long bone to which said instrument is to be attached, said implant, when fixedly attached to said fractured bone fragments by means of said partly tubular plates restores said fractured bone to its approximate pre-fracture length and contour, places said cylindrical rod section in parallel, contiguous and non-fixed alignment with said fractured bone and provides bearing support for said fractured bone during and after osteosynthesis.