510(k) · Cleared
ClearedPercuflex Ureteral Stent; Percuflex Plus Ureteral Stent; Percuflex Plus SureDrive Steerable Ureteral Stent Set; Contour Ureteral Stent; Contour SureDrive Steerable Ureteral Stent Set; Contour VL Variable Length Ureteral Stent; Contour VL SureDrive Steerable Ureteral Stent Set; Polaris Ultra Ureteral Stent; Polaris Loop Ureteral Stent; Tria Firm Ureteral Stent; Tria Soft Ureteral Stent; Percuflex Urinary Diversion Stent Set
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Boston Scientific Corporation · FAD Stent, Ureteral
Cleared on Apr 15, 2025 as substantially equivalent to K190603 (Boston Scientific Corporation, 2019) after a 28-day review. Its family tree reaches back 3 generations to 1998.
- Decided
- Apr 15, 2025
- Review
- 28 days
- Class
- Class II
- Product code
- FAD
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 3 generations to K974541 (1998). No later device cites it as a predicate yet.
- Root · 3 generations backK974541 Modified Ureteral Indwelling Catheter/StentBoston Scientific Corp · 1998 · Recalled
- 2 generations backK163399 Tria Firm Ureteral StentBoston Scientific Corporation · 2017
- 1 generation backK190603 Tria Firm Ureteral StentBoston Scientific Corporation · 2019
- This deviceK250824 Percuflex Ureteral Stent; Percuflex Plus Ureteral Stent; Percuflex…Boston Scientific Corporation · 2025
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −3 | K974541 | Modified Ureteral Indwelling Catheter/Stent | Boston Scientific Corp | 1998 | 2 |
| −2 | K163399 | Tria Firm Ureteral Stent | Boston Scientific Corporation | 2017 | — |
| −1 | K190603 | Tria Firm Ureteral Stent | Boston Scientific Corporation | 2019 | — |
| 0 (this device) | K250824 | Percuflex Ureteral Stent; Percuflex Plus Ureteral Stent; Percuflex Plus… | Boston Scientific Corporation | 2025 | — |
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 FAD? 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 FAD device
- #1 K251890 Disposable Ureteral Stentsscore 12.4 · 6 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 |
|---|---|---|---|
| * | K190603 | Tria Firm Ureteral StentSummary page 8…FAD 510(k) Submitter/Holder: Boston Scientific Corporation Marlborough, MA 510(k) #/Clearance Date: K190603 Cleared May 24, 2019 E. Device Description The Ureteral Stents are sterile, single use, disposable devices that provide… | 2019 |
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 27 years and passes through 2 companies; a new generation was cleared every 5.9 years on median.
- 1 of the 3 ancestors has a recall of any class.
- 1 other device also cites its predicate K190603.
How does its category compare?
All FAD devicesFAD Stent, Ureteral: FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, this device’s year, is highlighted.
FDA decisions per year · FAD
4in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · FAD
186in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · FAD
4in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · FAD
634in 2025
MAUDE reports naming product code FAD, 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 | 1 | — | 1 | 43 |
| 2008 | 1 | — | 22 | 76 |
| 2009 | 0 | — | 2 | 123 |
| 2010 | 1 | — | 1 | 78 |
| 2011 | 0 | — | 0 | 95 |
| 2012 | 0 | — | 0 | 131 |
| 2013 | 0 | — | 0 | 82 |
| 2014 | 1 | — | 0 | 78 |
| 2015 | 0 | — | 0 | 130 |
| 2016 | 4 | 143 | 4 | 182 |
| 2017 | 8 | 266 | 0 | 265 |
| 2018 | 9 | 258 | 0 | 277 |
| 2019 | 5 | 263 | 6 | 261 |
| 2020 | 1 | — | 2 | 352 |
| 2021 | 2 | — | 1 | 531 |
| 2022 | 5 | 143 | 9 | 559 |
| 2023 | 0 | — | 0 | 691 |
| 2024 | 1 | — | 0 | 603 |
| 2025 | 4 | 186 | 4 | 634 |
| 2026 | 1 | — | 0 | — |
What is it indicated for?
The Ureteral Stents are intended to facilitate urinary drainage from the kidney to the bladder via placement endoscopically or fluoroscopically by a trained physician.
The Ureteral Stent Sets are intended to facilitate urinary drainage from the kidney to the bladder via placement endoscopically or fluoroscopically by a trained physician.
The Urinary Diversion Stent Sets are intended to provide external drainage of urine after urinary diversion surgeries.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K250824 · printed Nov 6, 2026
Cite this page
510(k) Report. “K250824: Percuflex Ureteral Stent; Percuflex Plus Ureteral Stent; Percuflex Plus SureDrive Steerable Ureteral Stent Set; Contour Ureteral Stent; Contour SureDrive Steerable Ureteral Stent Set; Contour VL Variable Length Ureteral Stent; Contour VL SureDrive Steerable Ureteral Stent Set; Polaris Ultra Ureteral Stent; Polaris Loop Ureteral Stent; Tria Firm Ureteral Stent; Tria Soft Ureteral Stent; Percuflex Urinary Diversion Stent Set.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K250824
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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