510(k) · Cleared
ClearedFlexible Ureterorenoscope (US27F-12-EU; US27F-12-US)
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Shanghai AnQing Medical Instrument Co., Ltd. · FGB Ureteroscope And Accessories, Flexible/Rigid
Cleared on Apr 11, 2025 as substantially equivalent to K220159 (Shanghai AnQing Medical Instrument Co., Ltd., 2022) after a 116-day review. Its family tree reaches back 11 generations to 1993. 1 of the 32 devices in its family, counting itself, has a Class I recall. 1 later device descends from it.
- Decided
- Apr 11, 2025
- Review
- 116 days
- Class
- Class II
- Product code
- FGB
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 11 generations to K931154 (1993). 30 ancestors in all, the oldest K843084 (1985). 1 later device descends from it, 1 citing it directly. 1 of the 32 devices in this family, counting this one, has a Class I recall.
- Root · 11 generations backK931154 Evis 200 SystemOlympus Corp. · 1993
- 7 generations between
- 3 generations backK180367 Ureterorenoscope SystemShanghai AnQing Medical Instrument Co., Ltd. · 2018
- 2 generations backK201293 Ureterorenoscope SystemShanghai AnQing Medical Instrument Co., Ltd. · 2020
- 1 generation backK220159 Flexible Ureterorenoscope (Model: US31D-12-EU), Flexible…Shanghai AnQing Medical Instrument Co., Ltd. · 2022
- This deviceK243857 Flexible Ureterorenoscope (US27F-12-EU; US27F-12-US)Shanghai AnQing Medical Instrument Co., Ltd. · 2025
- Descendant · cites it directly · 0 of its ownK252806 Flexible Suction Ureterorenoscope (US27G-12-EU, US27G-12-US…Shanghai AnQing Medical Instrument Co., Ltd. · 2025
Show all 11 generations
- Root · 11 generations backK931154 Evis 200 SystemOlympus Corp. · 1993
- 10 generations backK963033 BF 240/P240/IT240 Bronchovideoscope & AccessoriesOlympus America, Inc. · 1996 · Recalled
- 9 generations backK981543 Olympus LF-TP and LF-DP Tracheal Intubation Fiberscopes, Accessories…The Olympus Optical Co. · 1998 · Recalled
- 8 generations backK021074 Visera Cystovideoscope Olympus Cyf Type V/VAOlympus America, Inc. · 2002
- 7 generations backK030960 Ecn Electronic Video CystonephroscopeAcmi Corporation · 2003
- 6 generations backK042225 Acmi Invisio Icn, Models Icn-0564 and Icn-0565Acmi Corporation · 2004
- 5 generations backK060269 Acmi Dur-Digital Ureteroscope and Choledochoscope SystemAcmi Corporation · 2006
- 4 generations backK131369 Flexible Video-Uretero-Renoscope SystemKARL STORZ Endoscopy-America, Inc. · 2013 · Recalled
- 3 generations backK180367 Ureterorenoscope SystemShanghai AnQing Medical Instrument Co., Ltd. · 2018
- 2 generations backK201293 Ureterorenoscope SystemShanghai AnQing Medical Instrument Co., Ltd. · 2020
- 1 generation backK220159 Flexible Ureterorenoscope (Model: US31D-12-EU), Flexible…Shanghai AnQing Medical Instrument Co., Ltd. · 2022
- This deviceK243857 Flexible Ureterorenoscope (US27F-12-EU; US27F-12-US)Shanghai AnQing Medical Instrument Co., Ltd. · 2025
Class I recalls in this family
- K912120 Urf-P2 Ureterorenofiberscope/Choledochofiberscope9 generations back · 1991
Most influential descendants
Showing 1 of 1 · See all- K252806Flexible Suction Ureterorenoscope (US27G-12-EU, US27G-12-US, US33G-17-EU, US33G-17-US…Shanghai AnQing Medical Instrument Co., Ltd. · 2025 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −11 | K931154 | Evis 200 System | Olympus Corp. | 1993 | — |
| −10 | K963033 | BF 240/P240/IT240 Bronchovideoscope & Accessories | Olympus America, Inc. | 1996 | 6 |
| −9 | K981543 | Olympus LF-TP and LF-DP Tracheal Intubation Fiberscopes, Accessories and… | The Olympus Optical Co. | 1998 | 5 |
| −8 | K021074 | Visera Cystovideoscope Olympus Cyf Type V/VA | Olympus America, Inc. | 2002 | — |
| −7 | K030960 | Ecn Electronic Video Cystonephroscope | Acmi Corporation | 2003 | — |
| −6 | K042225 | Acmi Invisio Icn, Models Icn-0564 and Icn-0565 | Acmi Corporation | 2004 | — |
| −5 | K060269 | Acmi Dur-Digital Ureteroscope and Choledochoscope System | Acmi Corporation | 2006 | — |
| −4 | K131369 | Flexible Video-Uretero-Renoscope System | KARL STORZ Endoscopy-America, Inc. | 2013 | 1 |
| −3 | K180367 | Ureterorenoscope System | Shanghai AnQing Medical Instrument Co., Ltd. | 2018 | — |
| −2 | K201293 | Ureterorenoscope System | Shanghai AnQing Medical Instrument Co., Ltd. | 2020 | — |
| −1 | K220159 | Flexible Ureterorenoscope (Model: US31D-12-EU), Flexible Ureterorenoscope… | Shanghai AnQing Medical Instrument Co., Ltd. | 2022 | — |
| 0 (this device) | K243857 | Flexible Ureterorenoscope (US27F-12-EU; US27F-12-US) | Shanghai AnQing Medical Instrument Co., Ltd. | 2025 | — |
| +1 | K252806 | Flexible Suction Ureterorenoscope (US27G-12-EU, US27G-12-US, US33G-17-EU… | Shanghai AnQing Medical Instrument Co., Ltd. | 2025 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1985 | 2 | 0 |
| 1991 | 2 | 1 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1995 | 3 | 0 |
| 1997 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2015 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2025 | 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.
1 device in this family has a Class I recall. 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 FGB device
- #1 K251951 Single-Use Video Flexible Ureterorenoscope…score 16.2 · 10 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 |
|---|---|---|---|
| * | K220159 | Flexible Ureterorenoscope (Model: US31D-12-EU), Flexible Ureterorenoscope (Model…Summary page 5…21 CFR 807.92(a)(3) Predicate# Predicate Trade Name (Primary Predicate is listed first) Product Code I 1<220159 11 Flexible Ureterorenoscope… | 2022 |
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K252806 | Flexible Suction Ureterorenoscope (US27G-12-EU, US27G-12-US, US33G-17-EU, US33G-17-US… | 2025 | 0 |
Has anything in its family been recalled? (1 Class I)
No FDA recall names this device.
Relatives with a Class I recall
Class I is FDA’s most serious recall class. A recall in the family tree is context for this device, not evidence about it.
- K912120Urf-P2 Ureterorenofiberscope/CholedochofiberscopeOlympus Corp. · 1991 · 9 generations back · ◆ in the 1991 ancestors bar of FIG. 11 Class I recall
What does this lineage say?
- The line of descent spans 32 years and passes through 6 companies; a new generation was cleared every 2.1 years on median.
- 8 of the 30 ancestors have a recall of any class; 1 has a Class I recall.
- Of its descendants, K252806 (Shanghai AnQing Medical Instrument Co., Ltd., 2025) has gone furthest, with 0 descendants of its own.
- 1 other device also cites its predicate K220159.
How does its category compare?
All FGB devicesFGB Ureteroscope And Accessories, Flexible/Rigid: FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, this device’s year, is highlighted.
FDA decisions per year · FGB
17in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · FGB
134in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · FGB
15in 2024
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · FGB
1,307in 2025
MAUDE reports naming product code FGB, 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 | 6 |
| 2008 | 0 | — | 0 | 7 |
| 2009 | 0 | — | 0 | 4 |
| 2010 | 0 | — | 0 | 20 |
| 2011 | 0 | — | 0 | 17 |
| 2012 | 2 | — | 0 | 11 |
| 2013 | 1 | — | 0 | 8 |
| 2014 | 2 | — | 0 | 12 |
| 2015 | 1 | — | 0 | 16 |
| 2016 | 0 | — | 0 | 35 |
| 2017 | 2 | — | 0 | 142 |
| 2018 | 4 | 191 | 0 | 118 |
| 2019 | 2 | — | 0 | 207 |
| 2020 | 2 | — | 0 | 402 |
| 2021 | 3 | 191 | 0 | 325 |
| 2022 | 5 | 205 | 4 | 455 |
| 2023 | 8 | 183 | 1 | 458 |
| 2024 | 16 | 217 | 15 | 572 |
| 2025 | 17 | 134 | 0 | 1,307 |
| 2026 | 9 | 140 | 1 | — |
What is it indicated for?
The Flexible Ureterorenoscope is intended to be used to visualize organs, cavities and canals in the urinary tract (urethra, bladder, ureter, calyces and renal papillae) via transurethral access routes. It can also be used in conjunction with endoscopic accessories to perform various diagnostic and therapeutic procedures in the urinary tract.
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/K243857 · printed Nov 6, 2026
Cite this page
510(k) Report. “K243857: Flexible Ureterorenoscope (US27F-12-EU; US27F-12-US).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K243857
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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