(under subclass 72) Subject matter wherein the fastener is either a single elongated means having helical threads thereon or a fastener consisting of externally threaded elongated element formed from a pin, rod or wire having a head at one end and designed to be inserted through bone portions and secured by a mating element having a threaded opening which is tightened by the application of torque.
(1) Note. The fasteners in this subclass include single screw elements which are applied into bones and paired elements, such as nuts and bolts, which are fastened to bones to hold them in place.
SEE OR SEARCH THIS CLASS, SUBCLASS:
59, for fixation elements used in conjunction with a pin or screw.
