Cleared Traditional

K250851 - Hypnos (369054-200) (FDA 510(k) Clearance)

Class II Neurology device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

K250851 · Cadwell Industries, Inc. · Neurology device
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Dec 2025
Decision
268d
Days
Class 2
Risk

K250851 is an FDA 510(k) clearance for the Hypnos (369054-200). Classified as Automatic Event Detection Software For Polysomnograph With Electroencephalograph (product code OLZ), Class II - Special Controls.

Submitted by Cadwell Industries, Inc. (Kennewick, US). The FDA issued a Cleared decision on December 14, 2025 after a review of 268 days - an extended review cycle.

This device falls under the Neurology FDA review panel, regulated under 21 CFR 882.1400 - the FDA neurology device framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Neurology review framework, consistent with the majority of Class II 510(k) submissions.

View all Cadwell Industries, Inc. devices

Submission Details

510(k) Number K250851 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received March 21, 2025
Decision Date December 14, 2025
Days to Decision 268 days
Submission Type Traditional
Review Panel Neurology (NE)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
120d slower than avg
Panel avg: 148d · This submission: 268d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code OLZ Automatic Event Detection Software For Polysomnograph With Electroencephalograph
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 882.1400
Definition 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. Magnitude, Time, Frequency And Simple Statistical Measures Of Marked Events); All Output Subject To Verification By Qualified User
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. This pathway does not require clinical trials - it relies on engineering equivalence and performance data. Most Neurology devices follow this clearance model.

Regulatory Peers - OLZ Automatic Event Detection Software For Polysomnograph With Electroencephalograph

All 35
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