Cleared Traditional

K893122 - HEATED SERVO HUMIDIFIER

K893122 is the FDA 510(k) clearance for HEATED SERVO HUMIDIFIER by Lifetronics, Inc.. It is a Class 2 Anesthesiology device (product code BTT) cleared through the Traditional 510(k) pathway after a 178-day FDA review.

K893122 · Lifetronics, Inc. · Anesthesiology device
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Oct 1989
Decision
178d
Days
Class 2
Risk

K893122 is an FDA 510(k) clearance for the HEATED SERVO HUMIDIFIER, MODEL HDS 2. Classified as Humidifier, Respiratory Gas, (direct Patient Interface) (product code BTT), Class II - Special Controls.

Submitted by Lifetronics, Inc. (Carrollton, US). The FDA issued a Cleared decision on October 20, 1989 after a review of 178 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 Lifetronics, Inc. devices

Submission Details

510(k) Number K893122 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received April 25, 1989
Decision Date October 20, 1989
Days to Decision 178 days
Submission Type Traditional
Review Panel Anesthesiology (AN)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
38d slower than avg
Panel avg: 140d · This submission: 178d
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 73
Devices cleared under the same product code (BTT) and FDA review panel - the closest regulatory comparables to K893122.
OASIS HUMIDIFIER
K964653 · Respironics, Inc. · Feb 1997
HUMIDIFIER
K945782 · Respironics, Inc. · Mar 1996
PURITAN-BENNETT CASCADE I SERIES HUMIDIFIER MODIFICATION
K936000 · Puritan Bennett Corp. · Aug 1994
MODEL MR2000 HEATED RESPIRATORY HUMIDIFIER
K881970 · Fisher &Paykel Healthcare , Ltd. · Mar 1989
STERILE WATER FOR INHALATION USP 2D0799
K851940 · Travenol Laboratories, S.A. · Jun 1985
BIRD HEATED HUMIDIFIER 3201
K842523 · 3M Company · Jul 1984