Device for securing spinal rods

摘要

A device is disclosed for securing a spinal rod to the spine which includes a head portion configured to receive a spinal rod, a locking cap configured to engage the head portion and the spinal rod upon rotation of the locking cap relative to the head portion to secure the position of the head portion relative to the spinal rod, and a fastener portion depending from the head portion and configured to engage the spine. The locking cap has discontinuous opposed engagement flanges that are received within opposed engagement slots of the head portion when the locking cap is rotated into a locked position.

主权项

1. A device for securing a spinal rod to the spine comprising:
a) a head portion having a channel configured to receive a spinal rod and a set of spaced apart slots; b) a fastener portion depending from the head portion and being configured to engage bone; and c) a locking cap having a first portion with flanges extending outward from a body of the first portion, and a second portion rotatably coupled to the first portion, the second portion including a bottom surface with an elongate recess extending along an axis and being adapted to engage the spinal rod, wherein rotation of the first portion of the locking cap with respect to the second portion forces at least one of the flanges against at least one of the slots in the head portion in a direction transverse to the axis to secure the spinal rod relative to the head portion.