510(k) · Cleared
ClearedModel Eeg 4400 with Optional Accessories
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Nihon Kohden America, Inc. · GWQ Full-Montage Standard Electroencephalograph
Cleared on Jan 19, 1988 after a 75-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 4 later devices descend from it.
- Decided
- Jan 19, 1988
- Review
- 75 days
- Class
- Class II
- Product code
- GWQ
- Recalls
- None
- Predicates
- 0
4 later devices descend from it, 1 citing it directly.
- This deviceK874796 Model Eeg 4400 with Optional AccessoriesNihon Kohden America, Inc. · 1988
- Descendant · cites it directly · 3 of its ownK030869 BitestripS.L.P., Ltd. · 2004
- Descendant · 2 generations on · 2 of its ownK092675 GrindcareMedotech A/S · 2010
- Descendant · 3 generations on · 0 of its ownK163448 GrindCare SystemSunstar Suisse S.A. · 2017
- Descendant · 2 generations on · 0 of its ownK113677 Grindcare MeasureMedotech A/S · 2012
Most influential descendants
Showing 4 of 4 · See allView FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K874796 | Model Eeg 4400 with Optional Accessories | Nihon Kohden America, Inc. | 1988 | — |
| +1 | K030869 | Bitestrip | S.L.P., Ltd. | 2004 | — |
| +2 | K092675 | Grindcare | Medotech A/S | 2010 | — |
| +3 | K163448 | GrindCare System | Sunstar Suisse S.A. | 2017 | — |
| +2 | K113677 | Grindcare Measure | Medotech A/S | 2012 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2004 | 1 | 0 |
| 2010 | 1 | 0 |
| 2012 | 1 | 0 |
| 2017 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in GWQ? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new GWQ device
- #1 K260455 New Wave Systemscore 13.7 · 10 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against?
FDA has not posted a summary or statement for it, so its predicates are not known.
What descends from it? (4)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K030869 | Bitestrip | 2004 | 3 |
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
What does this lineage say?
- Of its descendants, K030869 (S.L.P., Ltd., 2004) has gone furthest, with 3 descendants of its own.
How does its category compare?
All GWQ devicesGWQ Full-Montage Standard Electroencephalograph: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · GWQ
1in 2024
2026 to Oct 25, outlined.
Median 510(k) review, days · GWQ
137in 2023
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · GWQ
1in 2020
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · GWQ
13in 2025
MAUDE reports naming product code GWQ, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 1 | — | 5 | 11 |
| 2008 | 2 | — | 2 | 8 |
| 2009 | 0 | — | 1 | 7 |
| 2010 | 3 | 73 | 1 | 12 |
| 2011 | 4 | 220 | 0 | 6 |
| 2012 | 4 | 208 | 0 | 9 |
| 2013 | 2 | — | 0 | 4 |
| 2014 | 2 | — | 0 | 7 |
| 2015 | 3 | 276 | 2 | 13 |
| 2016 | 3 | 50 | 0 | 28 |
| 2017 | 5 | 181 | 0 | 17 |
| 2018 | 8 | 150 | 0 | 15 |
| 2019 | 0 | — | 2 | 16 |
| 2020 | 6 | 216 | 1 | 30 |
| 2021 | 0 | — | 0 | 20 |
| 2022 | 3 | 216 | 0 | 16 |
| 2023 | 6 | 137 | 0 | 20 |
| 2024 | 1 | — | 0 | 17 |
| 2025 | 0 | — | 0 | 13 |
| 2026 | 2 | — | 1 | — |
https://510kreport.com/device/K874796 · printed Nov 4, 2026
Cite this page
510(k) Report. “K874796: Model Eeg 4400 with Optional Accessories.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K874796
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Record history
- FDA decision record loaded May 2, 2026
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026