510(k) · Cleared
ClearedMayumi™ Thrombectomy System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
MicroVention, Inc., d/b/a Terumo Neuro · QEZ Aspiration Thrombectomy Catheter
Cleared on Sep 3, 2026 as substantially equivalent to K213402 (Inari Medical, 2022) after a 261-day review. Its family tree reaches back 6 generations to 2018.
- Decided
- Sep 3, 2026
- Review
- 261 days
- Class
- Class II
- Product code
- QEZ
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 6 generations to K183198 (2018). No later device cites it as a predicate yet.
- Root · 6 generations backK183198 FlowTriever Retrieval/Aspiration SystemInari Medical · 2018
- 5 generations backK191368 FlowTriever Retrieval/Aspiration SystemInari Medical · 2019
- 4 generations backK191710 FlowTriever Retrieval/Aspiration SystemInari Medical · 2019
- 3 generations backK202345 FlowTriever Retrieval/Aspiration SystemInari Medical · 2020
- 2 generations backK211013 FlowTriever Retrieval/Aspiration System, FlowTriever Catheters…Inari Medical, Inc. · 2021
- 1 generation backK213402 Triever24, Triever20Inari Medical · 2022
- This deviceK254035 Mayumi™ Thrombectomy SystemMicroVention, Inc., d/b/a Terumo Neuro · 2026
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −6 | K183198 | FlowTriever Retrieval/Aspiration System | Inari Medical | 2018 | — |
| −5 | K191368 | FlowTriever Retrieval/Aspiration System | Inari Medical | 2019 | — |
| −4 | K191710 | FlowTriever Retrieval/Aspiration System | Inari Medical | 2019 | — |
| −3 | K202345 | FlowTriever Retrieval/Aspiration System | Inari Medical | 2020 | — |
| −2 | K211013 | FlowTriever Retrieval/Aspiration System, FlowTriever Catheters, Triever 16… | Inari Medical, Inc. | 2021 | — |
| −1 | K213402 | Triever24, Triever20 | Inari Medical | 2022 | — |
| 0 (this device) | K254035 | Mayumi™ Thrombectomy System | MicroVention, Inc., d/b/a Terumo Neuro | 2026 | — |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in QEZ? 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 QEZ device
- #1 K253925 Aventus Thrombectomy Systemscore 17.9 · 5 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (1)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K213402 | Triever24, Triever20Summary page 5…21 CFR 807.92(a)(3) Predicate # Predicate Trade Name (Primary Predicate is listed first) Product Code K213402 Triever24, Triever20 QEW; KRA Device Descr… | 2022 |
What descends from it?
No later submission names this one as a predicate yet.
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?
- The line of descent spans 8 years and passes through 3 companies; a new generation was cleared every 1.1 years on median.
- None of the 6 ancestors has a recall.
- 7 other devices also cite its predicate K213402.
How does its category compare?
All QEZ devicesQEZ Aspiration Thrombectomy Catheter: FDA decisions, review times, recalls and adverse event reports over 20 years. 2026, this device’s year, is highlighted.
FDA decisions per year · QEZ
5in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · QEZ
108in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · QEZ
No recall names QEZ since 2007.
Adverse event reports per year · QEZ
21in 2025
MAUDE reports naming product code QEZ, 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 | 11 | 79 | 0 | 0 |
| 2008 | 6 | 72 | 0 | 0 |
| 2009 | 4 | 83 | 0 | 0 |
| 2010 | 3 | 33 | 0 | 0 |
| 2011 | 7 | 118 | 0 | 0 |
| 2012 | 5 | 90 | 0 | 0 |
| 2013 | 4 | 144 | 0 | 0 |
| 2014 | 1 | — | 0 | 0 |
| 2015 | 0 | — | 0 | 0 |
| 2016 | 1 | — | 0 | 0 |
| 2017 | 3 | 112 | 0 | 0 |
| 2018 | 1 | — | 0 | 0 |
| 2019 | 3 | 94 | 0 | 0 |
| 2020 | 3 | 120 | 0 | 0 |
| 2021 | 3 | 53 | 0 | 2 |
| 2022 | 2 | — | 0 | 18 |
| 2023 | 1 | — | 0 | 14 |
| 2024 | 1 | — | 0 | 17 |
| 2025 | 5 | 108 | 0 | 21 |
| 2026 | 6 | 98 | 0 | — |
What is it indicated for?
The Mayumi Thrombectomy System is indicated for:
*The non-surgical removal of emboli and thrombi from blood vessels
*Injection, infusion and/or aspiration of contrast media and other fluids into or from a blood vessel
The Mayumi Thrombectomy System is intended for use in the peripheral vasculature.
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K254035 · printed Nov 6, 2026
Cite this page
510(k) Report. “K254035: Mayumi™ Thrombectomy System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K254035
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Record history
- FDA decision record loaded Oct 30, 2026
- Summary read Oct 30, 2026 (extraction version 2d9447fa9ea4)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026