K990326 is an FDA 510(k) clearance for the OPTICAL TRACKING SYSTEM MICROSCOPE MODULE II, MODEL OTS MMII. Classified as Neurological Stereotaxic Instrument (product code HAW), Class II - Special Controls.
Submitted by Radionics Software Applications, Inc. (Burlington, US). The FDA issued a Cleared decision on March 4, 1999 after a review of 30 days - a notably fast clearance cycle.
This device falls under the Neurology FDA review panel, regulated under 21 CFR 882.4560 - 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.