Patent ID: 6248107
Filing Date: 2001-06-19
Classification: A61B

Abstract:
A reduction assembly for a spinal implant clamp that has a non-horizontal face, the spinal implant clamp being used to connect a bone bolt to a spinal implant rod, the reduction assembly comprising:a reduction bolt, said reduction bolt having machine threads on a proximal portion and means for engaging a vertebra on a distal portion;a nut, said nut operatively engaging the machine threads of said reduction bolt, said nut having a posterior face;a collar, said collar having an opening for receiving a portion of said reduction bolt and for permitting translational movement of said collar over said reduction bolt; said collar having anterior and posterior faces, the anterior face of said collar and the posterior face of said nut having mutually engageable male and female contacts, said contacts adapted to allow said nut to rotate in respect to said collar.