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: KNN FDA class 1

Components, Wheelchair

Physical Medicine

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Wheelchair Components are structural and functional parts used to assemble, repair, or modify manual or powered wheelchairs, including frames, wheels, footrests, armrests, and related structural elements that support mobility for individuals with physical disabilities. It is classified as FDA Class 1, indicating low risk subject to general controls with no premarket clearance required. The product code is KNN and it is regulated under 21 CFR 890.3920 in the Physical Medicine specialty.

510(k) Clearances

50+ matches
K Number
Device Name
KISS Dynamic Back Support, KISS Dynamic Solid Drop Seat
DYNASTY GC 12550 (GELL/CELL)
DYNASTY GC 12400 (GELL/CELL)
DYNASTY U1-33 AGM
DYNASTY U1-31 (GELL/CELL)
ALDEN LINEAGE WHEELCHAIR CUSHION
ALDEN WHEELCHAIR CUSHION
ZERO GRAVITY WHEELCHAIR COMPONENTS, MODIFICATION
PM
RHOMBO MEDICAL RHOMBO-FILL
TILT ADJUSTABLE SLIDING BACK RECLINE SEATING SYST
TILT SEATING SYSTEM
VALU-PLUS PAD
NEXUS WHEELCHAIR CUSHION/FORMERLY BIOTHOTIC
BIOMEDICAL HORIZONS MODEL 1001
MANUAL CHAIR BASE
CUSHION, WHELCHAR AND FLOTATION
SERENA WHEELCHAIR CUSHIONS
PIN DOT MOUNTING BRACKETS
PIN DOT FLIP-DOWN ABDUCTOR
IMPALA WHEELS
PIN DOT TRUNION MOUNTS
PIN DOT GROWTH/DIAL LINKS
PIN DOT ALUMINUM PAN
IMPALA AXLES
ARMREST
IMPALA CASTERS
PIN DOT FOOTREST PRODUCTS
T.C.S. TOTAL CONTACT SEAT
HANDI-TRAK WHEELCHAIR SNOW CHAINS
THE CAROLINA ROCKER
PERSONAL BACK WITH FIP KIT
WHEELCHAIR STUMP SUPPORT
E.Z. LOCK WHEELCHAIR RESTRAINT DEVICE
LAYDOWN ARM SUPPORT MECHANISM
SLIDING ARM SUPPORT
REMOVABLE BATTERY POWER SYSTEM
GILLUM'S WHEELCHAIR WIDTH REDUCING ATTACHMENT
WHEELS-OFF QUICK RELEASE AXLE SYSTEM
STOUTE'S ASSIST-SEAT WHEELCHAIR COMPONENT
LIFESTYLE SOF. CARE GEL CHAIR CUSHION
VAN-TEC PROSTATE BIOPSY NEEDLE
REDMAN UPHOLSTERY SERIES FOR WHEELCHAIRS
(ROTH)SPIRAL ROTATING PROSTATIC BIOPSY NEEDLE
UPHOLSTERED BUCKET SEAT
KINESETHETIC SEATING SYSTEM/WHEELCHAIR
THE FITZ KIT, MOLDED/CUSTOM WHEELCHAIR SEATING SYS
SHS CUSHION/WHEELCHAIR
BOTTOMS-UP TM PELVIC SPINAL POSTURE-AID
COMFORTEX WHEELCHAIR CUSHION

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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