PEDICLE SCREW

Strong Fixation

- Since the screw head is designed as a tapper, it is easily jointed and fixed, thereby shortening the time of operation.

- Since a gentle curve is achieved between the tread and the included angle of thread, the concentration of spine stress can be properly decentralized or scattered. (Produced by a special working machine ; prevented pedicle system screw acquired a national petent for it)

- Since it is designed with a screw head(12mm) to fit a usual Korean phisique, damage of the surrounding tissue can minimized when the pedecal is inserted.

- With various size of screws, well-fitted screws can be used according to the patient's conditions.

- The inside diameter of the screw is a conical type, therefore enabiling self-tapping; and the outside diameter of the screw is a steat type, therefore preventing pulling-out.

- Since the move of the poly screw can swing and rock upward, downward, to the right and left within an angle of 34, thereby realizing easy operation of it regardless of the angle of the screw inserted, transformation of the vertebra body due to the immoderate joint of a screw can be provented. Also, a shortcoming of the existing poly screw, that the screw should only have a thin screw head neck in order to secure an angle of swinging or rocking is excluded. However, the poly screw head is specially designed for its neck to be thick so that the screw head neck fracture can be prevented, and the fixing power of the screw is guaranteed.