Cleared Traditional

K840534 - LIQUID OXYGEN SYSTEM

K840534 is an FDA 510(k) clearance for LIQUID OXYGEN SYSTEM, manufactured by The John Bunn Co.. The device is a Class 2 Anesthesiology device with product code BYJ cleared through the Traditional 510(k) pathway after a 23-day FDA review.

K840534 · The John Bunn Co. · Anesthesiology device
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Mar 1984
Decision
23d
Days
Class 2
Risk

K840534 is an FDA 510(k) clearance for the LIQUID OXYGEN SYSTEM. Classified as Unit, Liquid-oxygen, Portable (product code BYJ), Class II - Special Controls.

Submitted by The John Bunn Co. (Mchenry, US). The FDA issued a Cleared decision on March 2, 1984 after a review of 23 days - a notably fast clearance cycle.

This device falls under the Anesthesiology FDA review panel, regulated under 21 CFR 868.5655 - 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 The John Bunn Co. devices

FDA 510(k) Submission Details - K840534

510(k) Number K840534 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received February 08, 1984
Decision Date March 02, 1984
Days to Decision 23 days
Submission Type Traditional
Review Panel Anesthesiology (AN)
Summary -
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
117d faster than avg
Panel avg: 140d · This submission: 23d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

BYJ Device Classification - Class 2, Special Controls

Product Code BYJ Unit, Liquid-oxygen, Portable
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 868.5655
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 - BYJ Unit, Liquid-oxygen, Portable

All 21
Devices cleared under the same product code (BYJ) and FDA review panel - the closest regulatory comparables to K840534.
PURITAN-BENNETT COMPANION EMT LIQUID OXYGEN
K895387 · Puritan Bennett Corp. · Jan 1990
COMPANION LIQUID OXYGEN SYSTEM
K861503 · Puritan Bennett Corp. · Jun 1986
MARK 4 LIQUID OXYGEN SYSTEM
K860937 · Puritan Bennett Corp. · Mar 1986
INSPIRON LIQUID OXYGEN SYSTEM
K834290 · Inspiron Corp. · Feb 1984
MARK III OXYGEN WALKER SYS-LOW PRESS
K830337 · Union Carbide Corp. · Mar 1983
LIQUID OXYGEN SYSTEM
K830498 · Puritan Bennett Corp. · Mar 1983