510(k) · Cleared
ClearedCub Dis Otoacoustic Emissions Test Instrument
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Etymotic Research · EWO Audiometer
Cleared on Sep 29, 1993 after a 238-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 3 later devices descend from it.
- Decided
- Sep 29, 1993
- Review
- 238 days
- Class
- Class II
- Product code
- EWO
- Recalls
- None
- Predicates
- 0
3 later devices descend from it, 1 citing it directly.
- This deviceK930553 Cub Dis Otoacoustic Emissions Test InstrumentEtymotic Research · 1993
- Descendant · cites it directly · 2 of its ownK980533 Ero-Scan Otoacoustic Emissions Test Inst. (ER34)Etymotic Research · 1998
- Descendant · 2 generations on · 0 of its ownK112733 ER35 Ero-Scan Pro Hearing Test SystemEtymotic Research, Inc. · 2011
- Descendant · 2 generations on · 0 of its ownK070880 ER35 Ero-Scan Pro Hearing Test SystemEtymotic Research, Inc. · 2007
Most influential descendants
Showing 3 of 3 · See all- K980533Ero-Scan Otoacoustic Emissions Test Inst. (ER34)Etymotic Research · 1998 · cites it directly2descendants
- K112733ER35 Ero-Scan Pro Hearing Test SystemEtymotic Research, Inc. · 2011 · 2 generations on0descendants
- K070880ER35 Ero-Scan Pro Hearing Test SystemEtymotic Research, Inc. · 2007 · 2 generations on0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K930553 | Cub Dis Otoacoustic Emissions Test Instrument | Etymotic Research | 1993 | — |
| +1 | K980533 | Ero-Scan Otoacoustic Emissions Test Inst. (ER34) | Etymotic Research | 1998 | — |
| +2 | K112733 | ER35 Ero-Scan Pro Hearing Test System | Etymotic Research, Inc. | 2011 | — |
| +2 | K070880 | ER35 Ero-Scan Pro Hearing Test System | Etymotic Research, Inc. | 2007 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1998 | 1 | 0 |
| 2007 | 1 | 0 |
| 2011 | 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 EWO? 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 EWO device
- #1 K234095 OtoNova/OtoNova Proscore 9.3 · 7 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? (3)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K980533 | Ero-Scan Otoacoustic Emissions Test Inst. (ER34) | 1998 | 2 |
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, K980533 (Etymotic Research, 1998) has gone furthest, with 2 descendants of its own.
How does its category compare?
All EWO devicesEWO Audiometer: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · EWO
2in 2024
2026 to Oct 25, outlined.
Median 510(k) review, days · EWO
173in 2015
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · EWO
4in 2023
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · EWO
13in 2025
MAUDE reports naming product code EWO, 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 | 5 | 69 | 0 | 1 |
| 2008 | 1 | — | 1 | 1 |
| 2009 | 2 | — | 0 | 1 |
| 2010 | 2 | — | 0 | 4 |
| 2011 | 3 | 151 | 0 | 2 |
| 2012 | 4 | 137 | 0 | 0 |
| 2013 | 2 | — | 0 | 0 |
| 2014 | 1 | — | 0 | 0 |
| 2015 | 4 | 173 | 0 | 1 |
| 2016 | 0 | — | 0 | 0 |
| 2017 | 2 | — | 0 | 0 |
| 2018 | 2 | — | 0 | 0 |
| 2019 | 1 | — | 0 | 6 |
| 2020 | 0 | — | 0 | 7 |
| 2021 | 0 | — | 0 | 3 |
| 2022 | 1 | — | 0 | 6 |
| 2023 | 1 | — | 4 | 3 |
| 2024 | 2 | — | 0 | 2 |
| 2025 | 0 | — | 0 | 13 |
| 2026 | 0 | — | 0 | — |
https://510kreport.com/device/K930553 · printed Nov 6, 2026
Cite this page
510(k) Report. “K930553: Cub Dis Otoacoustic Emissions Test Instrument.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K930553
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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