510(k) · Cleared
ClearedSphincterotome
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Boston Scientific Corp · KNS Unit, Electrosurgical, Endoscopic (With Or Without Accessories)
Cleared on Dec 5, 1997 after a 59-day review. The FDA summary names its predicate without a number. 1 later device descends from it.
- Decided
- Dec 5, 1997
- Review
- 59 days
- Class
- Class II
- Product code
- KNS
- Recalls
- None
- Predicates
- 0
1 later device descends from it, 1 citing it directly.
- This deviceK973826 SphincterotomeBoston Scientific Corp · 1997
- Descendant · cites it directly · 0 of its ownK061684 Medi-Globe Rota-Cut SphincterotomeMedi-Globe Corporation · 2006
Most influential descendants
Showing 1 of 1 · See all- K061684Medi-Globe Rota-Cut SphincterotomeMedi-Globe Corporation · 2006 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K973826 | Sphincterotome | Boston Scientific Corp | 1997 | — |
| +1 | K061684 | Medi-Globe Rota-Cut Sphincterotome | Medi-Globe Corporation | 2006 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2006 | 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 KNS? 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 KNS device
- #1 K241271 Aqua Medical RF Vapor Ablation Systemscore 17.2 · 20 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (2)
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 |
|---|---|---|---|
| * | — | Microvasive® Rapid Exchange Sphincterotome Named without a submission number | |
| * | — | Ultratome XL™ Triple Lumen Sphincterotome Named without a submission number |
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 |
|---|---|---|---|
| K061684 | Medi-Globe Rota-Cut Sphincterotome | 2006 | 0 |
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?
- Of its descendants, K061684 (Medi-Globe Corporation, 2006) has gone furthest, with 0 descendants of its own.
How does its category compare?
All KNS devicesKNS Unit, Electrosurgical, Endoscopic (With Or Without Accessories): FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · KNS
11in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · KNS
171in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · KNS
14in 2024
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · KNS
1,504in 2025
MAUDE reports naming product code KNS, 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 | — | 3 | 164 |
| 2008 | 3 | 61 | 5 | 587 |
| 2009 | 3 | 212 | 2 | 1,027 |
| 2010 | 4 | 168 | 0 | 908 |
| 2011 | 1 | — | 2 | 860 |
| 2012 | 2 | — | 0 | 848 |
| 2013 | 2 | — | 0 | 449 |
| 2014 | 1 | — | 0 | 405 |
| 2015 | 3 | 252 | 0 | 406 |
| 2016 | 3 | 30 | 6 | 457 |
| 2017 | 3 | 48 | 1 | 446 |
| 2018 | 5 | 62 | 0 | 563 |
| 2019 | 7 | 66 | 0 | 668 |
| 2020 | 4 | 212 | 0 | 906 |
| 2021 | 4 | 139 | 41 | 814 |
| 2022 | 3 | 182 | 0 | 913 |
| 2023 | 9 | 83 | 0 | 976 |
| 2024 | 3 | 198 | 14 | 1,533 |
| 2025 | 11 | 171 | 0 | 1,504 |
| 2026 | 2 | — | 4 | — |
What is it indicated for?
The Microvasive® Needle Knife Sphincterotome is indicated for use in transendoscopic sphincterotomy of the Papilla of Vater and/or the Sphincter of Oddi. The Microvasive Needle Knife can also be used to cannulate and inject contrast medium.
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/K973826 · printed Nov 4, 2026
Cite this page
510(k) Report. “K973826: Sphincterotome.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K973826
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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