Spinal Bone screw, non-bio absorbable:

A small, threaded rod with a slotted cap head intended to be used for internal spinal fixation by being screwed into the spine to hold a stabilization device (e.g., rod, plate) to bone; it is made of a material that is not chemically degraded or absorbed via natural body processes (includes implant grade metal such as surgical steel, titanium alloy, peek). The device is available in various types, including pedicle and transfect, and is typically used to provide immobilization and stabilization of spinal segments in the treatment of various spinal instabilities or deformities.

Spinal fixation plate, non-bio absorbable

A small implantable sheet of solid material that is attached to the spine with screws for spinal immobilization and is made of a material that is not chemically degraded or absorbed via natural body processes (includes implant grade metal such as  surgical steel, titanium alloy). The device is typically used to provide immobilization and stabilization of spinal segments in the treatment of various spinal instabilities or deformities (e.g., during anterior/posterior cervical, anterior/posterior lumbar, thoracolumbar, and Occipito-cervical fixation procedures).

Metallic or peek spinal fusion cage, non-sterile

A non-sterile device intended to help fuse segments of the spine to treat anatomical abnormalities of the vertebrae, typically due to degenerative intervertebral discs [i.e., degenerative disc disease (DDD)]. The device is typically designed as a small, hollow and/or porous, threaded or fenestrated cylinder (or other geometric form) made of metal [usually titanium (Ti) that
is implanted between the bones or bone grafts of the spine, to provide mechanical stability and sufficient space for therapeutic spinal bone fusion to occur. Disposable devices associated with implantation may be included. 

This device must be sterilized prior to use.