# K904269: Neurosearch-24 or NRS-24

- Pathway: 510(k) (Traditional)
- Applicant: Lexicor Medical Technology, Inc.
- Decided: Jun 4, 1991 after 259 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.
30 later devices descend from it; 2 cite it directly.
0 of 31 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
- K974748: Neurometric Analysis System (1998), 29 descendants of its own
- K041263: Neuroguide Analysis System (2004), 21 descendants of its own
- K092039: Identevent, Version 1.0G (2009), 9 descendants of its own
- K092573: Nihon Kohden QP-160AK Eeg Trend Program (2010), 7 descendants of its own
- K161068: Ahead 300 (2016), 6 descendants of its own

Source page: https://510kreport.com/device/K904269
Methodology: https://510kreport.com/methodology