Patent ID: 6139552
Filing Date: 2000-10-31
Classification: A61B

Abstract:
A bone jointer comprising:a lag screw inserted from a bone at one side as an object of junction and is engaged with a bone at the other side;a tube plate placed along said bone at one side and provided with a receiving part having a penetration hole;a tube positioned between said lag screw and said tube plate, into which a base of said lag screw is inserted, and provided with a head with which an inner periphery of said receiving part of said tube plate is movably engaged;a set screw inserted from outside of said tube plate and engaged with an inner periphery of said tube in order to fix said tube on said tube plate;a compression screw inserted from outside of said tube plate, penetrating inside said set screw, and engaged with said lag screw, thereby said lag screw as well as said bone on the other side are drew toward said bone at one end; anda washer inserted in a position between said set screw and an outer periphery of said receiving part of said tube plate, rotating during engagement of said set screw with said head of said tube, until said washer stops at a stablest position.