# K944678: Nihon Kohden Electroencephalograph

- Pathway: 510(k) (Traditional)
- Applicant: Nihon Kohden America, Inc.
- Decided: May 22, 1995 after 242 days
- Product code: GWQ (Full-Montage Standard Electroencephalograph)
- Device class: 2
- Regulation: 21 CFR 882.1400
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
19 later devices descend from it; 1 cites it directly.
0 of 20 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA has not posted a summary or statement for it, so its predicates are not known.

## Most influential descendants
- K992742: Neurofax, Model Eeg-1100A (1999), 18 descendants of its own
- K080546: Nihon Kohden Eeg-1200A Series Neurofax, Model Eeg-1200A (2008), 11 descendants of its own
- K120888: PSG-1100 Sleep Diagnostic System (2012), 6 descendants of its own
- K073491: Eeg-1100A Switch Box (2008), 5 descendants of its own
- K142774: Polysmith Sleep System (2015), 4 descendants of its own

Source page: https://510kreport.com/device/K944678
Methodology: https://510kreport.com/methodology