SPECIALTY SPINAL SCREW KITS

Brand	Owner	Address	Description
XENA	CHOICE SPINE, LP	400 Erin Drive Knoxville TN 37919	Specialty spinal screw kits for immobilization and stabilization of spinal segments, the kits primarily containing, top loading polyaxial pedicle screws and clips, rods, and hand tools, namely, screwdrivers and clip inserters and removers for installation of the spinal screw systems;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A nested fastener and set screw combination for securing a spinal fixation rod to a bone screw includes a fastener base receivable into an open channel of a bone screw. The fastener base has a central threaded bore to receive a threaded set screw. The set screw is provided with projecting structure, such as a ring, point or dome-shaped structure, for positive engagement with the surface of a rod. Uploaded and downloaded set screw embodiments are disclosed. In an uploaded set screw embodiment, the fastener base is provided with a radially inwardly extending abutment shoulder to engage and abut the set screw, prohibiting advancement of the set screw out of a top of the fastener and allowing for simultaneous removal of the set screw and the fastener. In an embodiment, the fastener includes a break-off head that separates from the fastener when a pre-selected installation torque is exceeded.