Patent ID: 6524314
Filing Date: 2003-02-25
Classification: A61B

Abstract:
An intramedullary nail and interlocking screw assembly comprising: a nail having a longitudinal axis and an elongated shank with a distal portion having a distal end and a proximal portion having a proximal end, said distal portion having at least one distal transverse bore located near the distal end, said nail being configured to be inserted from an end of a bone;an elongate first lag screw having a first outer threaded portion at a first end, a first outer cylindrical portion dimensioned to fit closely within said transverse bore at a second end, and a first axial bore having a first inner threaded portion, said first outer cylindrical and first outer threaded portions being axially spaced along the first lag screw length; a second lag screw having opposed first and second opposed ends, a second outer threaded portion, a second axial through bore spanning said first and second ends and having a screw seat at a first end and a mating portion adapted to cooperate with the first cylindrical portion of said first lag screw at said second end, said screw seat and said mating portion being axially spaced along the second lag screw length; and an elongate locking screw adapted to fit within said first and second bores, and arranged to engage said first threaded portion and said screw seat to connect said first and second lag screws together within said transverse bore when said first cylinder portion is inserted in said transverse bore, said mating portion is assembled in cooperative relationship with said first cylindrical portion and said locking screw is threaded into said first axial bore and seated on said screw seat.