# K203331: Quick-20m

- Pathway: 510(k) (Traditional)
- Applicant: Cgx, LLC
- Decided: May 20, 2021 after 189 days
- Product code: GWL (Amplifier, Physiological Signal)
- Device class: 2
- Regulation: 21 CFR 882.1835
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 5 generations back to K780045 (1978). 10 ancestors in all.
1 later device descends from it; 1 cites it directly.
0 of 12 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K171669: g.Nautilus PRO, G.Tec Medical Engineering GmbH (2017) Summary page 4.

## Most influential descendants
- K232210: X-trodes System M (2024), 0 descendants of its own

## Indications for use
The Quick-20m is intended to be used to acquire the electroencephalogram (EEG) and transmit it wirelessly to a computer.

Source page: https://510kreport.com/device/K203331
Methodology: https://510kreport.com/methodology