Cleared Traditional

K914686 - THERMO-FLOW SET (FDA 510(k) Clearance)

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

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Apr 1992
Decision
180d
Days
Class 2
Risk

K914686 is an FDA 510(k) clearance for the THERMO-FLOW SET. Classified as Humidifier, Respiratory Gas, (direct Patient Interface) (product code BTT), Class II - Special Controls.

Submitted by Inhalation Plastics (Chicago, US). The FDA issued a Cleared decision on April 15, 1992 after a review of 180 days - an extended review 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: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Anesthesiology review framework, consistent with the majority of Class II 510(k) submissions.

View all Inhalation Plastics devices

Submission Details

510(k) Number K914686 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received October 18, 1991
Decision Date April 15, 1992
Days to Decision 180 days
Submission Type Traditional
Review Panel Anesthesiology (AN)
Summary Statement
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
41d slower than avg
Panel avg: 139d · This submission: 180d
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 220
Devices cleared under the same product code (BTT) and FDA review panel - the closest regulatory comparables to K914686.
HVT 2.0
K254078 · Vapotherm, Inc. · Apr 2026
FL-10000U Respiratory Humidifier
K251448 · Flexicare Medical Limited. · Jan 2026
Laboratorios Biogalenic Sterile Water for Inhalation, USP
K251419 · Laboratorios Biogalenic S.A. DE C.V. · Jan 2026
Optiflow Switch+ Filtered Nasal Interface with CO2 Sampling (AA042J)
K253479 · Fisher &Paykel Healthcare , Ltd. · Dec 2025
Hudson RCI® Comfort Flo Nasal Cannula Premature, Infant
K250312 · Medline Industries, LP · Jul 2025
Optiflow+ Nasal Cannula - Small (OPT942)
K251611 · Fisher &Paykel Healthcare , Ltd. · Jun 2025