Patent ID: 6485492
Filing Date: 2002-11-26
Classification: A61B

Abstract:
An osteosynthesis device with a bone screw that has a screw shank and a screw head in the form of a forked head, where the forked head has a groove running crosswise to the screw axis, and a corrective rod to be inserted into the groove of the forked head, where the forked head is provided with means for fixing the corrective rod, and the forked head has an axial opening and at least a partially spherical head of the screw shank is inserted moveably into the opening, the opening narrowing in its region facing the screw shank and the narrowest cross section of the narrowing is smaller than the diameter of the head of the screw shank, the corrective rod being seated on the upper end of the head of the screw shank, characterized in that the narrowing is in the form of a truncated hollow cone and the corrective rod deforms the head of the screw shank when the means fixing the corrective rod is drawn tight.