| 摘要 |
<p>PURPOSE: An apparatus for fixing a spine is provided to easily insert a chuck and fix a bone screw by forming a coupling unit and a deformation inducing unit to effectively induce elastic expansion, restoration and elastic contraction of the diameter of a distal unit. CONSTITUTION: A bone screw(10) is inserted into a vertebrae. A head unit(11) is entered into a chuck(20) and combined with the chuck. A distal unit(21) is divided into a plurality of units by a cutting unit(22) separated at regular distance. A mounting unit is formed in the head unit and a housing(30). The chuck is inserted into the mounting unit by being entered into the down side of the housing opposite to a spine rod(40).</p> |
