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.
Stethoscope, Esophageal
Anesthesiology
The Stethoscope, Esophageal is a probe inserted into the esophagus to allow close auscultation of heart and lung sounds during general anesthesia, where a conventional external stethoscope cannot be used. It is classified as FDA Class 1, the lowest risk category, subject to general controls only with no premarket submission required. The product code is BZW, regulated under 21 CFR 868.1910 in the Anesthesiology specialty.
510(k) Clearances
13 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.