Patent ID: 6074423
Filing Date: 2000-06-13
Classification: A61B,A61F,Y10S

Abstract:
A spine-stabilization implant, comprising:a one-piece shell having a hexagonal cross-section;a series of bone-tapping screw threads on an outside surface of the shell;a series of flutes longitudinally oriented and in parallel around the outside circumference of the shell and that interrupt the screw threads and that allow material cut by the screw threads to accumulate;said threads forming rounded outside points and said flutes forming concave outside flats;a plurality of bone-growth access windows provided at several locations through at least one opposite pair of flutes; anda hollow central core connected to each of the bone-growth access windows and providing a space for packing with materials to promote bone growth through the shell and opposite sided bone-growth access windows between adjacent bones contacted by said outside circumference of the shell.