Patent ID: 7156849
Filing Date: 2007-01-02
Classification: A61B,A61F

Abstract:
1. A rod reduction device for reducing a rod disposed within a rod-receiving recess formed in a rod-receiving head of a spinal implant, the rod reduction device comprising: a reduction nut having a proximal end, a distal end, and a sidewall extending therebetween defining inner and outer surfaces, the reduction nut further including threads formed on the inner surface adjacent to the distal end; and a driver tool including an elongate shaft having proximal and distal ends, the distal end being sized to engage the reduction nut such that rotation of the driver tool is effective to rotate the reduction nut to thread the nut onto the rod-receiving head of the spinal implant to reduce a rod disposed therein, the driver tool further including a hollow cylindrical tube formed on the distal-most end thereof and having an outer diameter less than an inner diameter of the reduction nut such that the hollow cylindrical tube is adapted to be positioned within the rod-receiving head of the spinal implant to prevent the head from collapsing inward during reduction of the rod.