K171866 is an FDA 510(k) clearance for the Sentrant Introducer Sheath with Hydrophilic Coating. Classified as Introducer, Catheter (product code DYB), Class II - Special Controls.
Submitted by Medtronic Vascular, Inc. (Santa Rosa, US). The FDA issued a Cleared decision on December 20, 2017 after a review of 181 days - an extended review cycle.
This device falls under the Cardiovascular FDA review panel, regulated under 21 CFR 870.1340 - the FDA cardiovascular device oversight 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. Standard predicate reliance. This Special 510(k) clearance confirms that the manufacturer's modifications remained within the established regulatory envelope of the original cleared device.