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.

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Describe your device and the Research Assistant searches 510(k)s, compares intended use, and drafts a predicate shortlist — with citations.

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Product Code: PFW FDA class 2

Stationary Ultrasonic Diathermy Device For Use In Applying Therapeutic Deep Heat

Physical Medicine

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The Stationary Ultrasonic Diathermy Device for Use in Applying Therapeutic Deep Heat is a physical medicine device that uses stationary applicators to enable hands-free operation for delivering therapeutic ultrasonic heat to deep tissue. It is an FDA Class 2 device regulated under 21 CFR 890.5300, requiring 510(k) premarket notification, within the Physical Medicine (PM) specialty. The product code is PFW, and it is eligible for third-party review. This device is not implantable and does not sustain life.

510(k) Clearances

9 matches
K Number
Device Name
SAM 3.0 Multi-Hour Continuous Ultrasound Device
sam CS Long Duration Ultrasound Device
sam 2.0 Long Ultrasound Device
PainShield MD PLUS
sam X1 Long Duration Ultrasound Device
sam 2.0 Long Duration Ultrasound System
ZTX ULTRASONIC DIATHERMY DEVICE
PAINSHIELD MD
HF54 COMBINATION ULTRASOUND INTERFERENTIAL AND PREMODULATED STIMULATION SYSTEM WITH OPTIONAL HANDS-FREE OPERATION, MODEL

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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