510(k) Report

510(k) · Cleared

Recalled · Class II · 2026

Tangent Single-Use Digital System: Tangent Single-Use Digital Catheter and Tangent Digital Controller

K251170510(k) TraditionalCleared Sep 12, 2025150-day reviewClass II21 CFR 876.1500Recalls 1

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Tangent Endoscopy, LLC · FBN Choledochoscope And Accessories, Flexible/Rigid

Cleared on Sep 12, 2025 after a 150-day review. The summary cites one number, which could not be confirmed as its predicate (see the table below). It has been recalled once.

Decided
Sep 12, 2025
Review
150 days
Class
Class II
Product code
FBN
Recalls
1
Predicates
1

The summary cites one number, which could not be confirmed as its predicate (see the table below).

FIG. 1 — Lineage of K251170Source: FDA 510(k) database · How lineage is built

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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 FBN? 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 FBN device

  1. #1 K254153 Single-use Video Scope; PB Digital Controllerscore 14.4 · 12 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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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; numbers the summary cites that cannot be its predicate are marked – and kept off the family tree.

TypeNumberDeviceApplicantDecidedRecalls
Kept off the family treeK220743FDA’s K220743 is CediTEC
Not matched in our reading of the summary (scans can blur digits), so it is kept off the family tree
Voco GmbH2022—

What descends from it?

No later submission names this one as a predicate yet.

Has anything in its family been recalled? (0 Class I)

Recalls of this device

DateClassRecallRoot causeReason
Mar 23, 2026Class IIZ-2209-2026Process controlAffected devices exhibited fractures at the distal shaft tip without complete detachment.

No ancestor or descendant has a Class I recall.

How does its category compare?

All FBN devices

FBN Choledochoscope 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 · FBN

3in 2025

2008: 32010: 12012: 12015: 12016: 12018: 12019: 12020: 12023: 42024: 22025: 32026 (partial year): 3
2007high 4 (2023) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · FBN

150in 2025

2008: 64 days median2023: 215 days median2025: 150 days median2026 (partial year): 175 days median
2007high 215 (2023) · low 64 (2008)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · FBN

1in 2024

2020: 12023: 12024: 1, 1 Class I2026 (partial year): 1
2007high 1 (2020) · low 0 (2007)2026

Class I (1 since 2007) Class II/III not classified

Adverse event reports per year · FBN

118in 2025

2007: 12008: 52009: 42010: 22011: 22013: 22014: 22015: 22016: 1682017: 2242018: 6392019: 1052020: 1732021: 1582022: 2832023: 1052024: 1072025: 118
2007high 639 (2018) · low 0 (2012)2025

MAUDE reports naming product code FBN, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—01
200836405
20090—04
20101—02
20110—02
20121—00
20130—02
20140—02
20151—02
20161—0168
20170—0224
20181—0639
20191—0105
20201—1173
20210—0158
20220—0283
202342151105
20242—1 (1)107
202531500118
202631751—

What is it indicated for?

The Tangent Single-Use Digital System is indicated for use in diagnostic and therapeutic applications during endoscopic procedures in the pancreaticobiliary system including the hepatic ducts. The Tangent Single-Use Digital System comprises two components: the Tangent Single-Use Digital Catheter and the Tangent Digital Controller. The Tangent Single-Use Digital Catheter is intended to provide direct visualization and to guide both optical and accessory…

Read the full statement (115 words)

The Tangent Single-Use Digital System is indicated for use in diagnostic and therapeutic applications during endoscopic procedures in the pancreaticobiliary system including the hepatic ducts. The Tangent Single-Use Digital System comprises two components: the Tangent Single-Use Digital Catheter and the Tangent Digital Controller.

The Tangent Single-Use Digital Catheter is intended to provide direct visualization and to guide both optical and accessory devices for diagnostic and therapeutic applications during endoscopic procedures in the pancreatico-biliary system including the hepatic ducts.

The Tangent Digital Controller is intended to provide illumination and receive, process, and output images from the Tangent Single-Use Digital Catheter for diagnostic and therapeutic applications during endoscopic procedures in the pancreaticobiliary system including the hepatic ducts.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K251170: Tangent Single-Use Digital System: Tangent Single-Use Digital Catheter and Tangent Digital Controller.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K251170

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Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Page last updated Nov 3, 2026