# K221471: E3 and Profile

- Pathway: 510(k) (Traditional)
- Applicant: Diagnosys, LLC
- Decided: Nov 22, 2022 after 186 days
- Product code: GWE (Stimulator, Photic, Evoked Response)
- Device class: 2
- Regulation: 21 CFR 882.1890
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 3 generations back to K863956 (1986). 4 ancestors in all.
No later device cites it as a predicate yet.
0 of 5 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K211643: Vision Monitor - MonpackONE, Metrovision (2021) Summary page 4.

## Indications for use
The E3 and Profile system is an electrodiagnostic device used to generate photic signals and to measure and display the electrical signals generated by the retina and the visual nervous system. It displays digitized electroretinogram (ERG), visual evoked potential (VEP) and sensory electro-oculogram (EOG) signals, power spectra and topographic maps. These functions are controlled and interpreted by trained medical professionals, for use with patients who are experiencing visual system abnormalities.

Source page: https://510kreport.com/device/K221471
Methodology: https://510kreport.com/methodology