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.

Let the assistant find your predicates

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: MRD FDA unclassified

Mammary Sizer

Unknown

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The Mammary Sizer is a general surgery device used during breast augmentation surgery to help the surgeon select the appropriate size implant by temporarily placing a sizer of known volume in the pocket to assess the aesthetic outcome before choosing the final implant. This device is currently unclassified by the FDA, reviewed by the General and Plastic Surgery panel. The product code is MRD.

510(k) Clearances

13 matches
K Number
Device Name
MENTOR™ MemoryShape™ Resterilizable Gel Breast Implant Sizer; MENTOR™ MemoryGel™ Resterilizable Gel Breast Implant Sizer; MENTOR™ MemoryGel™ Enhance Single Use Gel Sizer
MENTOR™ MemoryGel™ Enhance Single Use Gel Sizer
NATRELLE INSPIRA Single Use Sizers for Gel Implants
Sientra OPUS Silicone Gel Breast Implant Sizer
Intraoperative, Single-Use, Sterile, Silicone Breast Sizer Motiva Implant Matrix
Mentor MemoryShape Resterilizable Gel Breast Implant Sizer STERILE
MENTOR MEMORYSHAPE RESTERILIZABLE GEL SIZER
MENTOR RESTERILIZABLE GEL BREAST IMPLANT SIZER
MENTOR STERILE SALINE MAMMARY VOLUME SIZERS
MAMMARY SIZER, MAMMARY PROTHESIS SIZER
MAMMARY SIZER
MAMMARY SIZER
CUI MAMMARY PROTHESIS SIZER

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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