Cervical spine fixator and screwdriver used therefor

摘要: A cervical spine fixator and a screwdriver used therefore is disclosed wherein the comprises plates ( 12, 212 ) for being adjoined to fixation region plurality of screws 14, 214 ). The are fixedly inserted into patient's simultaneously coupled plates, an adjacent with in fixed screw head fixture members 16, 216 having protruder, which deformed under effect pressure by when returns their position origin completely accommodated be hitched head. formed thereon receiving grooves 22, 222 accommodating member. openings recess received. groove concaved curvature installed or removed 230 protruder convex curvature, such that it easy manufacture, thickness reduced, thus eliminating feeling foreign substance after surgical operation.