510(k) · Cleared
ClearedFukuda Denshi FF Sonic UF-5800 General Purpose Ultrasound Scanning System with Doppler
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Fukuda Denshi USA, Inc. · IYO System, Imaging, Pulsed Echo, Ultrasonic
Cleared on Oct 15, 1999 as substantially equivalent to K922208 (Fukuda Denshi USA, Inc., 1993) and 2 other predicates after a 248-day review. Its family tree reaches back 2 generations to 1993. 3 later devices descend from it.
- Decided
- Oct 15, 1999
- Review
- 248 days
- Class
- Class II
- Product code
- IYO
- Recalls
- None
- Predicates
- 3
Its longest line of descent runs back 2 generations to K922208 (1993). 3 ancestors in all. 3 later devices descend from it, 1 citing it directly.
- Root · 2 generations backK922208 Fukuda Denshi Model UF-4500Fukuda Denshi USA, Inc. · 1993
- 1 generation backK955543 Ultrasound System Model UF-3500Fukuda Denshi USA, Inc. · 1997
- This deviceK990401 Fukuda Denshi FF Sonic UF-5800 General Purpose Ultrasound Scanning…Fukuda Denshi USA, Inc. · 1999
- Descendant · cites it directly · 2 of its ownK033209 Fukuda Denshi Model FF Sonic UF-750XTFukuda Denshi USA, Inc. · 2003
- Descendant · 2 generations on · 0 of its ownK082656 Model FF Sonic US-750 XT Diagnostic Ultrasound System 3D Imaging UnitFukuda Denshi USA, Inc. · 2008
- Descendant · 2 generations on · 0 of its ownK050363 Fukuda Denshi Model UF-850XTDFukuda Denshi USA, Inc. · 2005
Most influential descendants
Showing 3 of 3 · See all- K033209Fukuda Denshi Model FF Sonic UF-750XTFukuda Denshi USA, Inc. · 2003 · cites it directly2descendants
- K082656Model FF Sonic US-750 XT Diagnostic Ultrasound System 3D Imaging UnitFukuda Denshi USA, Inc. · 2008 · 2 generations on0descendants
- K050363Fukuda Denshi Model UF-850XTDFukuda Denshi USA, Inc. · 2005 · 2 generations on0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −2 | K922208 | Fukuda Denshi Model UF-4500 | Fukuda Denshi USA, Inc. | 1993 | — |
| −1 | K955543 | Ultrasound System Model UF-3500 | Fukuda Denshi USA, Inc. | 1997 | — |
| 0 (this device) | K990401 | Fukuda Denshi FF Sonic UF-5800 General Purpose Ultrasound Scanning System with… | Fukuda Denshi USA, Inc. | 1999 | — |
| +1 | K033209 | Fukuda Denshi Model FF Sonic UF-750XT | Fukuda Denshi USA, Inc. | 2003 | — |
| +2 | K082656 | Model FF Sonic US-750 XT Diagnostic Ultrasound System 3D Imaging Unit | Fukuda Denshi USA, Inc. | 2008 | — |
| +2 | K050363 | Fukuda Denshi Model UF-850XTD | Fukuda Denshi USA, Inc. | 2005 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1994 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2003 | 1 | 0 |
| 2005 | 1 | 0 |
| 2008 | 1 | 0 |
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 IYO? 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 IYO device
- #1 K243937 Accuro 3Sscore 20.5 · 18 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (3)
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 |
|---|---|---|---|
| * | K922208 | Fukuda Denshi Model UF-4500Summary page 1…ging System (§892.1560) Diagnostic Ultrasonic Transducer (§892.1560) Legally Marketed Device: e FUKUDA DENSHI FF sonic model UF-4500 General Purpose Ultrasound Scanner (K922208) e FUKUDA DENSHI FF sonic model UF-3500 General Purpose Ultrasound Scanner (K955543) ¢ Medison model SonoAce 4800 (K925582) UF-5… | 1993 |
| * | K955543 | Ultrasound System Model UF-3500Summary page 1…ed Device: e FUKUDA DENSHI FF sonic model UF-4500 General Purpose Ultrasound Scanner (K922208) e FUKUDA DENSHI FF sonic model UF-3500 General Purpose Ultrasound Scanner (K955543) ¢ Medison model SonoAce 4800 (K925582) UF-5800 510(k) Submission January 20, 1998 510(k) Summary.doc Pagelo 5%… | 1997 |
| * | K925582 | Medison 4800Summary page 1…el UF-4500 General Purpose Ultrasound Scanner (K922208) e FUKUDA DENSHI FF sonic model UF-3500 General Purpose Ultrasound Scanner (K955543) ¢ Medison model SonoAce 4800 (K925582) UF-5800 510(k) Submission January 20, 1998 510(k) Summary.doc Pagelo 5% Description: The model UF-5800 is a po… | 1994 |
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 |
|---|---|---|---|
| K033209 | Fukuda Denshi Model FF Sonic UF-750XT | 2003 | 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?
- The line of descent spans 6 years and passes through 1 company; a new generation was cleared every 3.5 years on median.
- None of the 3 ancestors has a recall.
- Of its descendants, K033209 (Fukuda Denshi USA, Inc., 2003) has gone furthest, with 2 descendants of its own.
- 2 other devices also cite its predicate K922208.
How does its category compare?
All IYO devicesIYO System, Imaging, Pulsed Echo, Ultrasonic: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · IYO
7in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · IYO
171in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · IYO
1in 2022
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · IYO
485in 2025
MAUDE reports naming product code IYO, 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 | 20 | 17 | 4 | 39 |
| 2008 | 14 | 36 | 5 | 20 |
| 2009 | 13 | 79 | 9 | 27 |
| 2010 | 15 | 113 | 8 | 20 |
| 2011 | 11 | 69 | 0 | 58 |
| 2012 | 15 | 68 | 2 | 78 |
| 2013 | 17 | 50 | 3 | 436 |
| 2014 | 14 | 63 | 2 | 304 |
| 2015 | 19 | 46 | 1 | 268 |
| 2016 | 10 | 36 | 0 | 254 |
| 2017 | 19 | 72 | 0 | 238 |
| 2018 | 14 | 56 | 1 | 368 |
| 2019 | 13 | 59 | 1 | 537 |
| 2020 | 11 | 57 | 0 | 498 |
| 2021 | 15 | 64 | 11 | 617 |
| 2022 | 5 | 190 | 1 | 511 |
| 2023 | 11 | 177 | 0 | 527 |
| 2024 | 10 | 220 | 0 | 640 |
| 2025 | 7 | 171 | 0 | 485 |
| 2026 | 10 | 139 | 1 | — |
What is it indicated for?
Diagnostic ultrasound imaging or fluid flow analysis of the human body as follows
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/K990401 · printed Nov 6, 2026
Cite this page
510(k) Report. “K990401: Fukuda Denshi FF Sonic UF-5800 General Purpose Ultrasound Scanning System with Doppler.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K990401
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026