K111953 is an FDA 510(k) clearance for the NAUTILUS SPINAL SYSTEM. Classified as Thoracolumbosacral Pedicle Screw System within the NKB classification (a category for thoracolumbosacral pedicle screw systems), Class II - Special Controls.
Submitted by Life Spine (Hoffman Estates, US). The FDA issued a Cleared decision on August 7, 2012 after a review of 393 days - an unusually long review period, suggesting complex equivalence evaluation.
This device falls under the Orthopedic FDA review panel, regulated under 21 CFR 888.3070 - the FDA orthopedic device regulatory framework. As a Special 510(k), this submission covers a manufacturer modification to an existing cleared device rather than a new device introduction.
Device pattern: Iterative device modification. Elevated predicate reliance profile. This Special 510(k) clearance confirms that the manufacturer's modifications remained within the established regulatory envelope of the original cleared device.