Cleared Traditional

K905530 - PURITAN-BENNETT COMPANION 500 LIQUID OXYGEN SYSTEM (FDA 510(k) Clearance)

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

K905530 · Puritan Bennett Corp. · Anesthesiology device
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Mar 1991
Decision
81d
Days
Class 2
Risk

K905530 is an FDA 510(k) clearance for the PURITAN-BENNETT COMPANION 500 LIQUID OXYGEN SYSTEM. Classified as Ventilator, External Body, Negative Pressure, Adult (cuirass) (product code BYT), Class II - Special Controls.

Submitted by Puritan Bennett Corp. (Overland Park, US). The FDA issued a Cleared decision on March 1, 1991 after a review of 81 days - a notably fast clearance cycle.

This device falls under the Anesthesiology FDA review panel, regulated under 21 CFR 868.5935 - 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 Puritan Bennett Corp. devices

Submission Details

510(k) Number K905530 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received December 10, 1990
Decision Date March 01, 1991
Days to Decision 81 days
Submission Type Traditional
Review Panel Anesthesiology (AN)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
58d faster than avg
Panel avg: 139d · This submission: 81d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code BYT Ventilator, External Body, Negative Pressure, Adult (cuirass)
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 868.5935
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.