| 主权项 |
1. A system for fixing a region of a skull to a portion of a spine, the system comprising:
a plate configured to contact a region of a skull and be secured thereto, the plate including an upper surface and an elongated slot defined therein, the elongated slot having a transverse dimension measured from a first side surface of the slot to a second side surface of the slot, the plate further including a recessed surface opposite the upper surface, the recessed surface extending along at least a portion of the elongated slot; and a single piece adjustable housing slidably coupled to the plate, the adjustable housing having a body portion and a base portion, the body portion having a U-shaped channel defined therein to receive a spinal rod, the base portion having a first portion extending from the body portion with a first cross dimension that is less than the transverse dimension of the slot, the base portion further including a flange with a second cross dimension greater than the first cross dimension, the first portion of the base portion located between the body portion and the flange; wherein the first portion of the base portion of the adjustable housing is positionable in the slot between the first side surface and the second side surface of the slot with the body portion of the adjustable housing facing the upper surface of the plate and an upper surface of the flange facing the recessed surface of the plate; wherein the upper surface of the flange is a textured surface including a series of extending projections configured to engage the recessed surface of the plate to inhibit relative movement between the adjustable housing and the plate when the spinal rod is secured in the U-shaped channel of the body portion of the adjustable housing. |
