Patent ID: 9743959
Date: 2017-08-29
CPC Classifications: A61B

Claim:
1. A spinal fixation assembly comprising: a first pedicle screw and a second pedicle screw, each said pedicle screw is defined by a distal end having a first set of threads constructed for fastening to a vertebral body and a proximal end having a second set of threads with a frangible area, a guide wire extending from said proximal end; a first connector plate attached to said first pedicle screw and a second connector plate connected to said second pedicle screw; a first rod connector member attached to said first connector plate and a second rod connector attached to said second connector plate; a spinal rod attached to both said first rod connector member and said second rod connector member; said first and said second pedicle screws each including a cup shaped receiver; each cup shaped receiver including a concave mating surface; said first connector plate having a first end and a second end; said second connector plate having a first end and a second end; said first end on each of said first and second connector plates including an upper concave surface and a lower convex surface; the second end on each of the first and second connector plates including an upper concave surface and a lower concave surface, the lower convex surface on said first end of said first and second connector plates is in operative engagement with the concave mating surface on each of the cup shaped receivers on the first and second pedicle screws; and the lower concave surface on the second end of said first and second connector plates is in operative engagement with a spherical surface on each of said first and second rod connector members, whereby said concave and convex mating surfaces that form connections between the first pedicle screw and first connector plate, the second pedicle screw and the second connector plate, the first rod connector member and the first connector plate and the second rod connector member and the second connector plate provide polyaxial movement of said pedicle screws and said rod connector members, said guide wire allows ease of placement of said plates and is detached along said frangible area after said locking nuts are secured.