510(k) · Cleared
ClearedGsi 38 Auto Tymp
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Lucas Grason-Stadler, Inc. · ETY Tester, Auditory Impedance
Cleared on Feb 2, 1993 after a 90-day review. FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known. 2 later devices descend from it.
- Decided
- Feb 2, 1993
- Review
- 90 days
- Class
- Class II
- Product code
- ETY
- Recalls
- None
- Predicates
- 0
2 later devices descend from it, 1 citing it directly.
- This deviceK925585 Gsi 38 Auto TympLucas Grason-Stadler, Inc. · 1993
- Descendant · cites it directly · 1 of its ownK081841 Amplivox Otowave 102 Hand Held Portable TympanometerAmplivox, Ltd. · 2008
- Descendant · 2 generations on · 0 of its ownK150163 Otowave 202 Portable TympanometerAmplivox, Ltd. · 2015
Most influential descendants
Showing 2 of 2 · See allView FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K925585 | Gsi 38 Auto Tymp | Lucas Grason-Stadler, Inc. | 1993 | — |
| +1 | K081841 | Amplivox Otowave 102 Hand Held Portable Tympanometer | Amplivox, Ltd. | 2008 | — |
| +2 | K150163 | Otowave 202 Portable Tympanometer | Amplivox, Ltd. | 2015 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2008 | 1 | 0 |
| 2015 | 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 ETY? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
- Candidate predicates for a device like this, rankedin the report
- Recall history across each candidate’s familyin the report
What was it cleared against?
FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known.
What descends from it? (2)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K081841 | Amplivox Otowave 102 Hand Held Portable Tympanometer | 2008 | 1 |
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, K081841 (Amplivox, Ltd., 2008) has gone furthest, with 1 descendant of its own.
How does its category compare?
All ETY devicesETY Tester, Auditory Impedance: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · ETY
1in 2019
2026 to Oct 25, outlined.
Median 510(k) review, days · ETY
Too few ETY 510(k)s in any year since 2007 to give a median.
Recalls per year · ETY
No recall names ETY since 2007.
Adverse event reports per year · ETY
1in 2025
MAUDE reports naming product code ETY, 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 | — | 0 | 0 |
| 2008 | 1 | — | 0 | 0 |
| 2009 | 1 | — | 0 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 0 | — | 0 | 1 |
| 2012 | 1 | — | 0 | 0 |
| 2013 | 0 | — | 0 | 1 |
| 2014 | 1 | — | 0 | 0 |
| 2015 | 2 | — | 0 | 0 |
| 2016 | 2 | — | 0 | 0 |
| 2017 | 1 | — | 0 | 0 |
| 2018 | 0 | — | 0 | 0 |
| 2019 | 1 | — | 0 | 0 |
| 2020 | 0 | — | 0 | 0 |
| 2021 | 0 | — | 0 | 1 |
| 2022 | 0 | — | 0 | 0 |
| 2023 | 0 | — | 0 | 0 |
| 2024 | 0 | — | 0 | 1 |
| 2025 | 0 | — | 0 | 1 |
| 2026 | 0 | — | 0 | — |
https://510kreport.com/device/K925585 · printed Nov 6, 2026
Cite this page
510(k) Report. “K925585: Gsi 38 Auto Tymp.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K925585
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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