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.
Plethysmograph, Air Displacement For Body Composition Analysis
Cardiovascular
The Plethysmograph, Air Displacement For Body Composition Analysis (product code OAC) is a diagnostic device that measures total body volume and weight using air displacement plethysmography to calculate estimated body composition, including total body fat and total body lean mass. It is classified as FDA Class 2, requiring 510(k) clearance, and is regulated under 21 CFR 870.2770 within the Cardiovascular specialty. Third-party 510(k) review is available, and the device carries no implant or life-sustaining flags.
510(k) Clearances
3 matchesWhat 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.