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: HKX FDA class 2

Tonometer, Ac-Powered

Ophthalmic

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The AC-Powered Tonometer is an electrically powered instrument used to measure intraocular pressure (IOP), a critical parameter in the diagnosis and management of glaucoma and other conditions affecting ocular pressure. It is classified as FDA Class 2, indicating moderate risk, and requires 510(k) premarket clearance demonstrating substantial equivalence to a predicate device. The product code is HKX, regulated under 21 CFR 886.1930, within the Ophthalmic medical specialty. No special risk flags apply to this device.

510(k) Clearances

50+ matches
K Number
Device Name
VS Tabletop Tonometer
Intraocular Pressure Tonometer EASYTON
MiiS Horus Scope DPT 100
Keeler TonoCare Tonometer
Tono Vue Non-Contact Tonometer
VX130 Ophthalmic Diagnostic Device
VX120 Ophthalmic Diagnostic Device
CORVIS ST
FULL AUTO TONOMETER MODEL TX-20
PULSAIR INTELLIPUFF, PULSAIR DESKTOP MODEL 2414-P-2001, 2417-P-2000
ACCUPEN
NON-CONTACT TONOMETER, MODEL FT-1000
OCULAR RESPONSE ANALYZER
KOWA KT-800
TONOMETER DIATON
TONOPACH ULTRASONIC TONOMETER/PACHYMETER MODEL P-201 (THE TONOPACH)
NON-CONTACT TONOMETERS, OCULAR RESPONSE ANALYZER
NON-CONTACT TONOMETER, MODEL NT-4000
APPLANATION TONOMETER
CANON FULL AUTO TONOMETER TX-F
KOWA AUTOMATED TONOMETER KT-500
TGDC-01 PRA
PORTABLE NON-CONTACT TONOMETER, MODEL PT100
LANGHAM OCULAR BLOOD FLOW (OBF) TONOGRAPH/TONOMETER MODEL 201
MODEL 30 CLASSIC PNEUMATONOMETER
SMARTLENS
LEICA AT550
KEELER PULSAIR 3000 NON CONTACT TONOMETER
CANON TX-10 TONOMETER
ZEIMER SELF TONOMETER
DIGITAL AVERAGING TONOMETER
NON-CONTACT TONOMETER T-2
XPERT NCT
TIP & MEMBRANE ASSEMBLY
BURTON APPLANATION TONOMETER - MODEL T850 & T1000
CYLINDER OF GAS, CAN OF GAS (CC12F2)
NIDEK MODEL NT-1000
KEELER PULSAIR NON CONTACT TONOMETER, MODIFICATION
BIO-RAD MODULAR AIR COMPRESSOR
MMAC II TONOMETER
TONOMETER TAPES
OBF MODEL 115 COMPUTER TONOMETER SYSTEM
T P C (TONOMETER PROBE COVER)
TOPCON COMPUTERIZED TONOMETER CT-10
KEELER PULSAIR NON CONTACT TONOMETER
DIGILAB MICRO ONE APPLANATION TONOMETER
OBF MODEL 112 VACUUM CUP SYSTEM
SURGICAL IOP MONITOR
DIGILAB MODULAR ONE-APPLANATION TONOMETER
COMPUTON(R)

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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