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: KTB FDA class 2

Device, Iontophoresis, Specific Uses

Physical Medicine

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This device is an iontophoresis device for specific uses, which employs a low-level electrical current to drive ionized medications through the skin into underlying tissues for targeted local drug delivery, used in physical medicine for conditions such as inflammation, hyperhidrosis, or pain management. It is classified as FDA Class 2, indicating moderate risk, and requires 510(k) premarket notification. The product code is KTB, regulated under 21 CFR 890.5525 within the Physical Medicine specialty. This device is eligible for third-party review.

510(k) Clearances

16 matches
K Number
Device Name
Macroduct Advanced Model 3710
RH-950
NORTHSTAR LIDOCAINE IONTOPHORETIC CONTROLLER (NORTHSTAR CONTROLLER-D)
RH-900
NANODUCT NEONATAL SWEAT ANALYSIS SYSTEM
TRANSQ3
PHORESOR MODEL PM2000
Q-SWEAT QUANTITATIVE SWEAT MEASUREMENT SYSTEM
PHORESOR II, MODEL PM900
TRANSQ ELECTRODE PHORESOR II
CF INDICATOR MODEL 9800 SWEAT TEST SYSTEM
WESCOR MODEL 3700 WEBSTER SWEAT INDUCER
SYS MACRODUCT SWEAT COLLECTION SYS 3600
IONOPHORELIC SWEAT STIM. CHLORIDE-
ELECTROAPPLICATOR MODEL C-1
IONOTPHORETIC APPLICATOR

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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