Cleared Traditional

MARQUEST SCT 3000, HEATED HUMIDIFICATION SYSTEM (K903138) - FDA 510(k) Clearance

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

K903138 · Marquest Medical Products, Inc. · Anesthesiology device
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Oct 1990
Decision
86d
Days
Class 2
Risk

K903138 is an FDA 510(k) clearance for the MARQUEST SCT 3000, HEATED HUMIDIFICATION SYSTEM. Classified as Humidifier, Respiratory Gas, (direct Patient Interface) (product code BTT), Class II - Special Controls.

Submitted by Marquest Medical Products, Inc. (Englewood, US). The FDA issued a Cleared decision on October 11, 1990 after a review of 86 days - a notably fast clearance cycle.

This device falls under the Anesthesiology FDA review panel, regulated under 21 CFR 868.5450 - the FDA anesthesiology and respiratory 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: Fast-track predicate clearance. Standard predicate reliance. The short review cycle indicates strong predicate alignment - the FDA found sufficient equivalence without extended technical review.

View all Marquest Medical Products, Inc. devices

Submission Details

510(k) Number K903138 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received July 17, 1990
Decision Date October 11, 1990
Days to Decision 86 days
Submission Type Traditional
Review Panel Anesthesiology (AN)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
53d faster than avg
Panel avg: 139d · This submission: 86d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code BTT Humidifier, Respiratory Gas, (direct Patient Interface)
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 868.5450
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 Anesthesiology devices follow this clearance model.

Regulatory Peers - BTT Humidifier, Respiratory Gas, (direct Patient Interface)

All 51
Devices cleared under the same product code (BTT) and FDA review panel - the closest regulatory comparables to K903138.
RESPIRONICS HEATED HUMIDIFIER
K012633 · Respironics, Inc. · Feb 2002
OASIS HUMIDIFIER
K964653 · Respironics, Inc. · Feb 1997
HUMIDIFIER
K945782 · Respironics, Inc. · Mar 1996
STERILE WATER FOR INHALATION USP 2D0799
K851940 · Travenol Laboratories, S.A. · Jun 1985
BIRD HEATED HUMIDIFIER 3201
K842523 · 3M Company · Jul 1984
2M8101 HEATED LIQUID LEVEL CONTROLLER
K802144 · Travenol Laboratories, S.A. · Sep 1980