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: QLG FDA class 2

Integrated Continuous Glucose Monitoring System, Factory Calibrated, Not For Use With Automated Insulin Delivery Systems

Clinical Chemistry

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The Integrated Continuous Glucose Monitoring System, Factory Calibrated, Not For Use With Automated Insulin Delivery Systems is a Class 2 clinical chemistry device that automatically measures glucose continuously or frequently, is factory calibrated to replace finger stick blood glucose testing for diabetes treatment decisions, transmits data to digitally connected devices, and is specifically not intended for use with automated insulin dosing systems. It requires 510(k) clearance and is regulated under 21 CFR 862.1355 within the Clinical Chemistry medical specialty. The product code is QLG. The device is not an implant and is not flagged as life-sustaining.

510(k) Clearances

9 matches
K Number
Device Name
Bigfoot Unity® Diabetes Management System
FreeStyle Libre 2 System, FreeStyle Libre 3 System
FreeStyle Libre 3 Continuous Glucose Monitoring System
FreeStyle Libre 3 Continuous Glucose Monitoring System
FreeStyle Libre 2 Flash Glucose Monitoring System (with FreeStyle Libre 2 App)
FreeStyle Libre 2 Flash Glucose Monitoring System
FreeStyle Libre 2 Flash Glucose Monitoring System (with FreeStyle Libre 2 App)
Bigfoot Unity Diabetes Management System
FreeStyle Libre 2 Flash Glucose Monitoring System

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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