K121943 is an FDA 510(k) clearance for the XPRESS MULTI-SINUS DILATION TOOL. Classified as Instrument, Ent Manual Surgical (product code LRC), Class I - General Controls.
Submitted by Entellus Medical, Inc. (Plymouth, US). The FDA issued a Cleared decision on August 22, 2012 after a review of 50 days - a notably fast clearance cycle.
This device falls under the Ear, Nose, Throat FDA review panel, regulated under 21 CFR 874.4420 - the FDA ear, nose and throat 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.