Sensormedics 4000 Series Sleep System

K915856 is the FDA 510(k) clearance record for SENSORMEDICS 4000 SERIES SLEEP SYSTEM, a class II device, cleared for Sensor Medics Corp. on 1992-10-26 under FDA product code OLZ (Automatic Event Detection Software For Polysomnograph With Electroencephalograph). FDA's definition for product code OLZ reads: "Automatically mark electroencephalograph and polysomongraph signals in order to aid in identification of such events and annotation of prolonged PSG traces; Automatically calculate simple measures obtained from recorded signals (e.G...". FDA records list 26 510(k) clearances for Sensor Medics Corp., from 1984-06-15 to 2004-03-04. As of 2026-09-10, FDA records show no recalls naming K915856.