510(k) · Cleared
ClearedAkrotech 4000
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Lumex, Inc. · IOQ Bed, Flotation Therapy, Powered
Cleared on Feb 12, 1993 after a 189-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 12, 1993
- Review
- 189 days
- Class
- Class II
- Product code
- IOQ
- Recalls
- None
- Predicates
- 0
2 later devices descend from it, 2 citing it directly.
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) | K923977 | Akrotech 4000 | Lumex, Inc. | 1993 | — |
| +1 | K963674 | Lumex Air | Lumex, Inc. | 1997 | — |
| +1 | K962123 | Akrotech 4000T Kinetic Turning Low Air Loss System | Lumex, Inc. | 1996 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1996 | 1 | 0 |
| 1997 | 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 IOQ? 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)
2 later devices cite it directly; ranked here by how many devices descend from each in turn.
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, K963674 (Lumex, Inc., 1997) has gone furthest, with 0 descendants of its own.
How does its category compare?
All IOQ devicesIOQ Bed, Flotation Therapy, Powered: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · IOQ
1in 2015
2026 to Oct 25, outlined.
Median 510(k) review, days · IOQ
Too few IOQ 510(k)s in any year since 2007 to give a median.
Recalls per year · IOQ
1in 2023
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · IOQ
142in 2025
MAUDE reports naming product code IOQ, 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 | 0 | — | 0 | 7 |
| 2008 | 0 | — | 1 | 10 |
| 2009 | 0 | — | 4 | 35 |
| 2010 | 0 | — | 2 | 28 |
| 2011 | 0 | — | 0 | 15 |
| 2012 | 0 | — | 1 | 9 |
| 2013 | 1 | — | 1 | 15 |
| 2014 | 0 | — | 0 | 35 |
| 2015 | 1 | — | 0 | 28 |
| 2016 | 0 | — | 0 | 42 |
| 2017 | 0 | — | 0 | 22 |
| 2018 | 0 | — | 0 | 20 |
| 2019 | 0 | — | 0 | 4 |
| 2020 | 0 | — | 0 | 9 |
| 2021 | 0 | — | 0 | 56 |
| 2022 | 0 | — | 2 | 22 |
| 2023 | 0 | — | 1 | 111 |
| 2024 | 0 | — | 0 | 392 |
| 2025 | 0 | — | 0 | 142 |
| 2026 | 0 | — | 3 | — |
https://510kreport.com/device/K923977 · printed Nov 6, 2026
Cite this page
510(k) Report. “K923977: Akrotech 4000.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K923977
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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