510(k) · Cleared
ClearedFlexible Cystoscope (CY50H-20EU, CY50H-20US, CY55H-24EU, CY55H-24US)
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Shanghai AnQing Medical Instrument Co., Ltd. · FAJ Cystoscope And Accessories, Flexible/Rigid
Cleared on Sep 15, 2025 as substantially equivalent to K222162 (Shanghai AnQing Medical Instrument Co., Ltd., 2022) after a 28-day review. Its family tree reaches back 11 generations to 1992. 2 of the 46 devices in its family, counting itself, have a Class I recall.
- Decided
- Sep 15, 2025
- Review
- 28 days
- Class
- Class II
- Product code
- FAJ
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 11 generations to K921244 (1992). 45 ancestors in all, the oldest K843084 (1985). No later device cites it as a predicate yet. 2 of the 46 devices in this family, counting this one, have a Class I recall.
- Root · 11 generations backK921244 Disposable Protective SheathVision-Sciences, Inc. · 1992
- 7 generations between
- 3 generations backK160766 Ambu USR, Ambu MAmbu A/S · 2016
- 2 generations backK193095 Ambu aScope 4 CystoAmbu A/S · 2020
- 1 generation backK222162 Flexible Cystoscope (Model: CY50H-20EU, CY50H-20US, CY55H-24EU…Shanghai AnQing Medical Instrument Co., Ltd. · 2022
- This deviceK252598 Flexible Cystoscope (CY50H-20EU, CY50H-20US, CY55H-24EU, CY55H-24US)Shanghai AnQing Medical Instrument Co., Ltd. · 2025
Show all 11 generations
- Root · 11 generations backK921244 Disposable Protective SheathVision-Sciences, Inc. · 1992
- 10 generations backK961591 Disposable Endosheath for E-F100 Flexible NasopharyngoscopeVision-Sciences, Inc. · 1996
- 9 generations backK963795 Vision-Sciences Model B-F100 Bronchoscope with Model BS-F21…Vision-Sciences, Inc. · 1996
- 8 generations backK021344 B-F200 Bronchoscope with BSS-F21 Endosheath SystemVision-Sciences, Inc. · 2002
- 7 generations backK031786 Tne-2000 Esophagoscope with Ecs-D Endosheath SystemVision-Sciences, Inc. · 2003
- 6 generations backK040215 Vision-Sciences CST-2000 Flexible Cystoscope with Slide-on…Vision-Sciences, Inc. · 2004
- 5 generations backK053560 Modified Endosheath System for Vsi Flexible CystoscopeVision-Sciences, Inc. · 2006
- 4 generations backK072180 Vision-Sciences CST-5000 Video Cystoscope with Endosheath SystemVision-Sciences, Inc. · 2007
- 3 generations backK160766 Ambu USR, Ambu MAmbu A/S · 2016
- 2 generations backK193095 Ambu aScope 4 CystoAmbu A/S · 2020
- 1 generation backK222162 Flexible Cystoscope (Model: CY50H-20EU, CY50H-20US, CY55H-24EU…Shanghai AnQing Medical Instrument Co., Ltd. · 2022
- This deviceK252598 Flexible Cystoscope (CY50H-20EU, CY50H-20US, CY55H-24EU, CY55H-24US)Shanghai AnQing Medical Instrument Co., Ltd. · 2025
Class I recalls in this family
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −11 | K921244 | Disposable Protective Sheath | Vision-Sciences, Inc. | 1992 | — |
| −10 | K961591 | Disposable Endosheath for E-F100 Flexible Nasopharyngoscope | Vision-Sciences, Inc. | 1996 | — |
| −9 | K963795 | Vision-Sciences Model B-F100 Bronchoscope with Model BS-F21 Disposable… | Vision-Sciences, Inc. | 1996 | — |
| −8 | K021344 | B-F200 Bronchoscope with BSS-F21 Endosheath System | Vision-Sciences, Inc. | 2002 | — |
| −7 | K031786 | Tne-2000 Esophagoscope with Ecs-D Endosheath System | Vision-Sciences, Inc. | 2003 | — |
| −6 | K040215 | Vision-Sciences CST-2000 Flexible Cystoscope with Slide-on Endosheath System | Vision-Sciences, Inc. | 2004 | — |
| −5 | K053560 | Modified Endosheath System for Vsi Flexible Cystoscope | Vision-Sciences, Inc. | 2006 | — |
| −4 | K072180 | Vision-Sciences CST-5000 Video Cystoscope with Endosheath System | Vision-Sciences, Inc. | 2007 | — |
| −3 | K160766 | Ambu USR, Ambu M | Ambu A/S | 2016 | — |
| −2 | K193095 | Ambu aScope 4 Cysto | Ambu A/S | 2020 | — |
| −1 | K222162 | Flexible Cystoscope (Model: CY50H-20EU, CY50H-20US, CY55H-24EU, CY55H-24US) | Shanghai AnQing Medical Instrument Co., Ltd. | 2022 | — |
| 0 (this device) | K252598 | Flexible Cystoscope (CY50H-20EU, CY50H-20US, CY55H-24EU, CY55H-24US) | Shanghai AnQing Medical Instrument Co., Ltd. | 2025 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1991 | 2 | 1 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2009 | 1 | 0 |
| 2011 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 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.
2 devices in this family have 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 FAJ device
- #1 K193095 Ambu aScope 4 Cystoscore 31.5 · 9 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 |
|---|---|---|---|
| * | K222162 | Flexible Cystoscope (Model: CY50H-20EU, CY50H-20US, CY55H-24EU, CY55H-24US) | 2022 |
What descends from it?
No later submission names this one as a predicate yet.
Has anything in its family been recalled? (2 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.
- K023984Modification to Olympus Bronchoscopes BF-40 Series, BF-240 Series, and BF-160 SeriesThe Olympus Optical Co. · 2003 · 5 generations back · ◆ in the 2003 ancestors bar of FIG. 114 Class I recalls
- K912120Urf-P2 Ureterorenofiberscope/CholedochofiberscopeOlympus Corp. · 1991 · 5 generations back · ◆ in the 1991 ancestors bar of FIG. 11 Class I recall
What does this lineage say?
- The line of descent spans 33 years and passes through 3 companies; a new generation was cleared every 2.6 years on median.
- 14 of the 45 ancestors have a recall of any class; 2 have a Class I recall.
How does its category compare?
All FAJ devicesFAJ Cystoscope 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 · FAJ
8in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · FAJ
98in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · FAJ
7in 2023
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · FAJ
2,690in 2025
MAUDE reports naming product code FAJ, 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 | 2 | — | 0 | 9 |
| 2008 | 0 | — | 0 | 10 |
| 2009 | 2 | — | 0 | 10 |
| 2010 | 1 | — | 0 | 9 |
| 2011 | 0 | — | 0 | 13 |
| 2012 | 1 | — | 0 | 8 |
| 2013 | 0 | — | 0 | 12 |
| 2014 | 1 | — | 0 | 6 |
| 2015 | 0 | — | 0 | 28 |
| 2016 | 1 | — | 0 | 75 |
| 2017 | 2 | — | 1 | 79 |
| 2018 | 2 | — | 0 | 79 |
| 2019 | 3 | 207 | 0 | 102 |
| 2020 | 2 | — | 0 | 339 |
| 2021 | 3 | 127 | 0 | 494 |
| 2022 | 5 | 170 | 1 | 744 |
| 2023 | 5 | 207 | 7 | 920 |
| 2024 | 9 | 130 | 0 | 892 |
| 2025 | 8 | 98 | 0 | 2,690 |
| 2026 | 5 | 123 | 0 | — |
What is it indicated for?
AnQing Medical Single Use Flexible Cystoscope is used to provide visualization and operative access during diagnostic and therapeutic endoscopic procedures of the lower urinary tract, including the bladder and urethra.
The Flexible Cystoscope is intended for use in a hospital environment or medical office environment.
The Flexible Cystoscope is designed for use in adults.
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/K252598 · printed Nov 6, 2026
Cite this page
510(k) Report. “K252598: Flexible Cystoscope (CY50H-20EU, CY50H-20US, CY55H-24EU, CY55H-24US).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K252598
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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