K171807 is an FDA 510(k) clearance for the ES2 Neuromonitoring Accessory Instruments. Classified as Neurosurgical Nerve Locator (product code PDQ), Class II - Special Controls.
Submitted by Stryker Corporation (Allendale, US). The FDA issued a Cleared decision on July 18, 2017 after a review of 29 days - a notably fast clearance cycle.
This device falls under the Neurology FDA review panel, regulated under 21 CFR 874.1820 - the FDA neurology device 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. Low regulatory complexity profile. This Special 510(k) clearance confirms that the manufacturer's modifications remained within the established regulatory envelope of the original cleared device.