COMPOSITE MATERIAL SPINAL IMPLANT

摘要

A pedicle screw implant construct kit, comprising at least one pedicle screw, at least one collar comprising a recess for receiving a rod, the collar configured to be coupled to a head of the pedicle screw, an elongated rod for connecting the collar to one more additional collars to couple between the pedicle screw and one or more additional screws, and a locking ring sized to be positioned over at least a distal portion of the collar to restrain relative movement of the screw head and rod by exerting radial compression force onto the collar. In some embodiments, the components of the kit are comprised of carbon reinforced composite material.

主权项

1. A pedicle screw implant construct kit, comprising:
at least one pedicle screw including a head, said screw comprising composite material including reinforcing filaments embedded in a polymer matrix; at least one collar, said collar comprising composite material including reinforcing filaments embedded in a polymer matrix, said collar including at least one recess defining a cavity shaped and sized for receiving a rod, said collar sized, shaped and configured to be coupled to said head of said pedicle screw; an elongated rod sized and shaped for connecting said collar to one or more additional collars, thereby coupling between said at least one pedicle screw and one or more additional screws, said rod comprising composite material including reinforcing filaments embedded in a polymer matrix; and at least one locking ring, said ring comprising composite material including reinforcing filaments embedded in a polymer matrix, said ring sized and shaped to be positioned over at least portion of said collar and restrict relative movement of the screw head and rod by exerting radial compression force onto said collar.