510(k) Report

510(k) · Cleared

Cleared

Sullivan Variable Stiffness Cable

K901610510(k) TraditionalCleared Jun 29, 199084-day reviewClass II21 CFR 876.1500

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

Wilson-Cook Medical, Inc. · FDF Colonoscope And Accessories, Flexible/Rigid

Cleared on Jun 29, 1990 after an 84-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 2 later devices descend from it.

Decided
Jun 29, 1990
Review
84 days
Class
Class II
Product code
FDF
Recalls
None
Predicates
0

2 later devices descend from it, 1 citing it directly.

Descendants, by year cleared 2005: 1 descendant cleared2025: 1 descendant cleared1990200020102020
  1. This deviceK901610 Sullivan Variable Stiffness CableWilson-Cook Medical, Inc. · 1990
  2. Descendant · cites it directly · 1 of its ownK051068 Zutron Colonoscope Stiffening DeviceZutron Medical · 2005
  3. Descendant · 2 generations on · 0 of its ownK251204 FUJIFILM Stiffening Wire Device (SW-2000)FUJIFILM Healthcare Americas Corporation · 2025

Most influential descendants

Showing 2 of 2 · See all
  • K051068Zutron Colonoscope Stiffening DeviceZutron Medical · 2005 · cites it directly1descendant
  • K251204FUJIFILM Stiffening Wire Device (SW-2000)FUJIFILM Healthcare Americas Corporation · 2025 · 2 generations on0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)K901610Sullivan Variable Stiffness CableWilson-Cook Medical, Inc.1990—
+1K051068Zutron Colonoscope Stiffening DeviceZutron Medical2005—
+2K251204FUJIFILM Stiffening Wire Device (SW-2000)FUJIFILM Healthcare Americas Corporation2025—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200510
202510
FIG. 1 — Lineage of K901610, 1990–2025Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA 510(k) database (decision fields), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in FDF? 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 FDF device

  1. #1 K230332 Ambu® aScope™ Colon; Ambu® aBox™ 2score 20.1 · 8 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?

FDA has not posted a summary or statement for it, so its predicates are not known.

What descends from it? (2)

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K051068Zutron Colonoscope Stiffening DeviceZutron Medical20051

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, K051068 (Zutron Medical, 2005) has gone furthest, with 1 descendant of its own.

How does its category compare?

All FDF devices

FDF Colonoscope And Accessories, Flexible/Rigid: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · FDF

4in 2025

2007: 42008: 22009: 62010: 42011: 22012: 72013: 22014: 62015: 22016: 72017: 42018: 72019: 42020: 42021: 32022: 52023: 62024: 22025: 42026 (partial year): 5
2007high 7 (2012) · low 2 (2008)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · FDF

194in 2025

2007: 70 days median2009: 91 days median2010: 101 days median2012: 241 days median2014: 164 days median2016: 98 days median2017: 36 days median2018: 101 days median2019: 56 days median2020: 250 days median2021: 30 days median2022: 147 days median2023: 203 days median2025: 194 days median2026 (partial year): 147 days median
2007high 250 (2020) · low 30 (2021)2026

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

Recalls per year · FDF

8in 2023

2015: 12016: 12020: 12023: 8
2007high 8 (2023) · low 0 (2007)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · FDF

17,231in 2025

2007: 812008: 682009: 832010: 482011: 772012: 882013: 632014: 602015: 1002016: 1702017: 3702018: 3882019: 4172020: 6872021: 2,4442022: 8,3452023: 11,7482024: 12,1282025: 17,231
2007high 17,231 (2025) · low 48 (2010)2025

MAUDE reports naming product code FDF, 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
2007470081
20082—068
2009691083
20104101048
20112—077
20127241088
20132—063
20146164060
20152—1100
20167981170
20174360370
201871010388
20194560417
202042501687
202133002,444
2022514708,345
20236203811,748
20242—012,128
20254194017,231
202651470—
Cite this page

510(k) Report. “K901610: Sullivan Variable Stiffness Cable.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K901610

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Record history
  • FDA decision record loaded May 2, 2026
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026