1. A system for implementing surgical procedures comprising: an ultrasonic surgical hand piece having an end-effector with a sheath wherein the end-effector is selected from the group consisting of a blade, shears, scissors and forceps; a generator console for controlling the hand piece, wherein the console sends a drive current to drive the hand piece which imparts ultrasonic longitudinal movement to the blade; and a memory disposed in the sheath of the end-effector, wherein the console reads information stored in the memory to determine whether a copyrighted data string is present; wherein the hand piece is authenticated for use with the console if the data string is present.