# K250094: Atlas Stim Headbox (NK) (31-0601-0077); Atlas Stim Headbox (Touchproof) (31-0601-0089); Atlas Stim Headbox (HD) (31-0601-0132); ASHB FIBER OPTIC DUPLEX CONN 2m (31-0204-0001); ASHB FIBER OPTIC DUPLEX CONN 7m (31-0204-0002); ATLAS Stim Headbox Software (36-0301-0006); Atlas Headbox Interface Cable (NK) (31-0204-003); Atlas Headbox Interface Cable (Touchproof) (31-0204-004); Atlas Headbox Interface Cable (HD) (31-0204-005); Atlas Headbox Expansion Panel (31-0607-0014)

- Pathway: 510(k) (Traditional)
- Applicant: Neuralynx, Inc.
- Decided: Apr 14, 2025 after 90 days
- Product code: GYC (Electrode, Cortical)
- Device class: 2
- Regulation: 21 CFR 882.1310
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 8 generations back to K842956 (1984). 29 ancestors in all.
No later device cites it as a predicate yet.
0 of 30 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K180761: SD LTM STIM Cortical Stimulator, Micromed S.P.A. (2018) Summary page 6.
- K183123: microTargeting Guideline 4000 5.0 System, FHC, Inc. (2018) Summary page 6.

## Indications for use
The ATLAS Stim Headbox is a low power, constant current or voltage mode, bi-phasic stimulator intended for cortical or intracranial stimulation during electroencephalography examinations (i.e. stereoEEG). The stimulation is applied to the brain using third-party stimulation probes (including cortical or intracranial electrodes) and the resulting cortical or deep brain potentials themselves are recorded using third-party cortical or intracranial electrodes. The ATLAS Stim Headbox itself is an accessory to the ATLAS Neurophysiology System and ATLAS STIM Headbox software. The stimulation parameters, the electrodes selection and the activation of the stimulation current are all set-up and controlled from these devices. The ATLAS Stim Headbox can operate only when so connected and with the Pegasus and ATLAS Stim Headbox software; it cannot serve as a stand-alone stimulator.

Source page: https://510kreport.com/device/K250094
Methodology: https://510kreport.com/methodology