Tool · 510(k)

510(k) Predicate Finder

Find potential predicate devices for your 510(k) submission. Enter a K-number to find all clearances with the same product code, a three-letter product code to browse clearances directly, or search by device name.

Product Code: BYJ FDA class 2

Unit, Liquid-Oxygen, Portable

Anesthesiology

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The Unit, Liquid-Oxygen, Portable is a portable device that stores and delivers liquid oxygen, which is converted to gaseous oxygen as needed for patients requiring supplemental oxygen therapy outside of fixed medical facilities. It is classified as FDA Class 2, indicating moderate risk and requiring 510(k) premarket notification. The product code is BYJ, regulated under 21 CFR 868.5655 in the Anesthesiology specialty. This device is eligible for third-party 510(k) review.

510(k) Clearances

50+ matches
K Number
Device Name
DISMOUNTED MEDICAL & SUPPLEMENTAL OXYGEN SYSTEM (DMOS)
MOUNTED MEDICAL OXYGEN SYSTEM
PRECISION LIQUID OXYGEN SYSTEM
MASS OXYGEN DISTRIBUTION SYSTEM (MODS) MODEL 10C-0061-3
GOLOX-93
MODIFICATION TO: SPIRIT
RESPIRONICS GOLOX
COPD LIQUID OXYGEN PORTABLE, MODEL 300P
BACKPACK MEDICAL OXYGEN SYSTEM
SPIRIT, MODEL HAS
PLIX
PRECISION LIQUID OXYGEN SYSTEM
LIQUID OXYGEN SYSTEM
NEXT GENERATION PORTABLE THERAPEUTIC LIQUID OXYGEN SYSTEM
SPIRIT 300
PURITAN-BENNETT HELIOS PORTABLE LIQUID OXYGEN SYSTEM
PROTEGE LIQUID OXYGEN SYSTEM
PORTABLE LIQUID OXYGEN UNIT AND STATIONARY LIQUID OXYGEN UNIT
LIQUID OXYGEN STORAGE SUBSYSTEM
PURITAN-BENNETT COMPANION 550 LIQUID OXYGEN PORTABLE UNIT
MOBILAIRE LIQUID OXYGEN SYSTEMS
PURITAN-BENNETT COMPAN EMT W/REMOTE LIQ LEV GUAGE
PURITAN-BENNETT COMPANION EMT LIQUID OXYGEN
VOYAGER PX
HI FLOW 50
PORTABLE THERAPEUTIC LIQUID OXYGEN UNIT
HI FLOW PORTABLE LIQUID OXYGEN UNIT
LIBERATOR 53/STROLLER 50
NOMAD (BASE UNIT/PORTABLE UNIT)
ECONOL (PORTABLE) ECONO 30 & 40 LITER BASE UNIT
PORTABLE LIQUID OXYGEN UNIT (MODIFICATION)
CSI LIQUID OXYGEN SYSTEM
SWIVEL COUPLER
CTC 30, 40, 1 LIQUID OXYGEN LITERS
COMPANION LIQUID OXYGEN SYSTEM
MARK 4 LIQUID OXYGEN SYSTEM
PENOX HIGH FLOW MANIFOLD
RESERVIOR-MASTERAIR PORTABLE-FREEDOMAIR
STROLLER SPRINT
LIQUID OXYGEN SYSTEM
INSPIRON LIQUID OXYGEN SYSTEM
PULSAIR I & II
MARK III OXYGEN WALKER SYS. RESERVOIR
MARK III OXYGEN WALKER SYS-LOW PRESS
LIQUID OXYGEN SYSTEM
MARK III OXYGEN WALKER SYSTEM
UNIT, LIQUID, OXYGEN, PORTABLE
LINDE MARK II
FLOWLOCK OXYGEN METER
LINDE MARK II OXYGEN RESERV. TYPE OR-4

What is a Predicate Device?

A predicate device is a legally marketed device that a new 510(k) applicant uses to demonstrate substantial equivalence. The FDA's 510(k) pathway requires manufacturers to show that their device has the same intended use and similar technological characteristics as one or more predicate devices already cleared for commercial distribution.

Finding the right predicate is a critical step in 510(k) strategy. Manufacturers typically search for cleared devices with the same FDA product code, which groups devices by their intended use and regulatory classification. This tool helps you identify potential predicates by browsing all clearances within a product code.

Note that predicate devices must be legally marketed — they cannot be devices that were cleared but never commercialized, or devices subject to a mandatory recall. The determination of substantial equivalence considers intended use, technological characteristics, and performance data.

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