510(k) Report

510(k) · Cleared

Cleared

AutoContour (RADAC V5)

K260509510(k) SpecialCleared Mar 19, 202630-day reviewClass II21 CFR 892.2050

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

Radformation, Inc. · QKB Radiological Image Processing Software For Radiation Therapy

Cleared on Mar 19, 2026 as substantially equivalent to K242729 (Radformation, Inc., 2024) after a 30-day review. Its family tree reaches back 17 generations to 1991. 1 later device descends from it.

Decided
Mar 19, 2026
Review
30 days
Class
Class II
Product code
QKB
Recalls
None
Predicates
1

Its longest line of descent runs back 17 generations to K913770 (1991). 117 ancestors in all, the oldest K871859 (1987). 1 later device descends from it, 1 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 2010: 1 other ancestor2008: 1 other ancestor2007: 4 other ancestors2005: 4 other ancestors2004: 10 other ancestors2003: 7 other ancestors2001: 13 other ancestors2006: 3 other ancestors2002: 11 other ancestors1998: 7 other ancestors1997: 4 other ancestors2000: 9 other ancestors1999: 3 other ancestors1995: 4 other ancestors1994: 3 other ancestors1993: 2 other ancestors1987: 1 other ancestor1992: 2 other ancestors1996: 5 other ancestors1991: 4 other ancestors1990: 1 other ancestor1989: 1 other ancestor2026: 1 descendant clearedReference device: K241837 · Limbus Contour · Limbus Ai, Inc. · 2024K913770 · Advantage V.S. CT/MR Rad Diagnostic Workstation · General Electric Co. · 1991K963345 · Advantage Windows Tissue Volume Option · GE Medical Systems · 1996K013381 · Advanced Lung Analysis-1 · General Electric Co. · 2001K022013 · Lungcare CT Software Package · Siemens Medical Solutions USA, Inc. · 2002K033374 · Lungcare CT Software Package with Extended Functionality · Siemens AG Medical Solutions · 2003K041484 · Undecided · Siemens Medical Solutions USA, Inc. · 2004K053301 · Cedara I-Response Cedara Pet/CT · Cedara Software Corp. · 2006K071950 · Syngo Trued · Siemens Medical Solutions USA, Inc. · 2007K091373 · Syngo Trued · Siemens Medical Solutions USA, Inc. · 2009×2: 2 generations cleared close together, K101228 (2010), K102687 (2010) K130393 · Mirada RTX · Mirada Medical, Ltd. · 2013K181572 · Workflow Box · Mirada Medical, Ltd. · 2018K200323 · AutoContour · Radformation, Inc. · 2020K220598 · AutoContour Model RADAC V2 · Radformation, Inc. · 2022K230685 · AutoContour Model RADAC V3 · Radformation, Inc. · 2023K242729 · AutoContour (Model RADAC V4) · Radformation, Inc. · 20241990200020102020
Other ancestors, by generationDescendants, by generation 6 generations back: 2 other ancestors7 generations back: 8 other ancestors8 generations back: 15 other ancestors9 generations back: 21 other ancestors10 generations back: 22 other ancestors11 generations back: 18 other ancestors12 generations back: 11 other ancestors13 generations back: 2 other ancestors14 generations back: 1 other ancestor 1 generation forward: 1 descendant K242729 · AutoContour (Model RADAC V4) · Radformation, Inc. · 2024K230685 · AutoContour Model RADAC V3 · Radformation, Inc. · 2023K220598 · AutoContour Model RADAC V2 · Radformation, Inc. · 2022K200323 · AutoContour · Radformation, Inc. · 2020K181572 · Workflow Box · Mirada Medical, Ltd. · 2018K130393 · Mirada RTX · Mirada Medical, Ltd. · 2013K102687 · Mirada RT · Mirada Medical, Ltd. · 2010K101228 · Mirada XD · Mirada Medical, Ltd. · 2010K091373 · Syngo Trued · Siemens Medical Solutions USA, Inc. · 2009K071950 · Syngo Trued · Siemens Medical Solutions USA, Inc. · 2007K053301 · Cedara I-Response Cedara Pet/CT · Cedara Software Corp. · 2006K041484 · Undecided · Siemens Medical Solutions USA, Inc. · 2004K033374 · Lungcare CT Software Package with Extended Functionality · Siemens AG Medical Solutions · 2003K022013 · Lungcare CT Software Package · Siemens Medical Solutions USA, Inc. · 2002K013381 · Advanced Lung Analysis-1 · General Electric Co. · 2001K963345 · Advantage Windows Tissue Volume Option · GE Medical Systems · 1996K913770 · Advantage V.S. CT/MR Rad Diagnostic Workstation · General Electric Co. · 1991−15−10−50
  1. Root · 17 generations backK913770 Advantage V.S. CT/MR Rad Diagnostic WorkstationGeneral Electric Co. · 1991
  2. 13 generations between
  3. 3 generations backK220598 AutoContour Model RADAC V2Radformation, Inc. · 2022
  4. 2 generations backK230685 AutoContour Model RADAC V3Radformation, Inc. · 2023
  5. 1 generation backK242729 AutoContour (Model RADAC V4)Radformation, Inc. · 2024
  6. This deviceK260509 AutoContour (RADAC V5)Radformation, Inc. · 2026
  7. Descendant · cites it directly · 0 of its ownK262452 AutoContour (RADAC V6)Radformation, Inc. · 2026
Show all 17 generations
  1. Root · 17 generations backK913770 Advantage V.S. CT/MR Rad Diagnostic WorkstationGeneral Electric Co. · 1991
  2. 16 generations backK963345 Advantage Windows Tissue Volume OptionGE Medical Systems · 1996
  3. 15 generations backK013381 Advanced Lung Analysis-1General Electric Co. · 2001
  4. 14 generations backK022013 Lungcare CT Software PackageSiemens Medical Solutions USA, Inc. · 2002
  5. 13 generations backK033374 Lungcare CT Software Package with Extended FunctionalitySiemens AG Medical Solutions · 2003
  6. 12 generations backK041484 UndecidedSiemens Medical Solutions USA, Inc. · 2004
  7. 11 generations backK053301 Cedara I-Response Cedara Pet/CTCedara Software Corp. · 2006
  8. 10 generations backK071950 Syngo TruedSiemens Medical Solutions USA, Inc. · 2007
  9. 9 generations backK091373 Syngo TruedSiemens Medical Solutions USA, Inc. · 2009
  10. 8 generations backK101228 Mirada XDMirada Medical, Ltd. · 2010
  11. 7 generations backK102687 Mirada RTMirada Medical, Ltd. · 2010
  12. 6 generations backK130393 Mirada RTXMirada Medical, Ltd. · 2013
  13. 5 generations backK181572 Workflow BoxMirada Medical, Ltd. · 2018
  14. 4 generations backK200323 AutoContourRadformation, Inc. · 2020
  15. 3 generations backK220598 AutoContour Model RADAC V2Radformation, Inc. · 2022
  16. 2 generations backK230685 AutoContour Model RADAC V3Radformation, Inc. · 2023
  17. 1 generation backK242729 AutoContour (Model RADAC V4)Radformation, Inc. · 2024
  18. This deviceK260509 AutoContour (RADAC V5)Radformation, Inc. · 2026

Most influential descendants

Showing 1 of 1 · See all
  • K262452AutoContour (RADAC V6)Radformation, Inc. · 2026 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−17K913770Advantage V.S. CT/MR Rad Diagnostic WorkstationGeneral Electric Co.1991—
−16K963345Advantage Windows Tissue Volume OptionGE Medical Systems1996—
−15K013381Advanced Lung Analysis-1General Electric Co.2001—
−14K022013Lungcare CT Software PackageSiemens Medical Solutions USA, Inc.2002—
−13K033374Lungcare CT Software Package with Extended FunctionalitySiemens AG Medical Solutions2003—
−12K041484UndecidedSiemens Medical Solutions USA, Inc.2004—
−11K053301Cedara I-Response Cedara Pet/CTCedara Software Corp.2006—
−10K071950Syngo TruedSiemens Medical Solutions USA, Inc.2007—
−9K091373Syngo TruedSiemens Medical Solutions USA, Inc.2009—
−8K101228Mirada XDMirada Medical, Ltd.2010—
−7K102687Mirada RTMirada Medical, Ltd.2010—
−6K130393Mirada RTXMirada Medical, Ltd.2013—
−5K181572Workflow BoxMirada Medical, Ltd.2018—
−4K200323AutoContourRadformation, Inc.2020—
−3K220598AutoContour Model RADAC V2Radformation, Inc.2022—
−2K230685AutoContour Model RADAC V3Radformation, Inc.2023—
−1K242729AutoContour (Model RADAC V4)Radformation, Inc.2024—
0 (this device)K260509AutoContour (RADAC V5)Radformation, Inc.2026—
+1K262452AutoContour (RADAC V6)Radformation, Inc.2026—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
198710
198910
199010
199140
199220
199320
199430
199540
199650
199740
199870
199930
200090
2001130
2002110
200370
2004100
200540
200630
200740
200810
201010

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202610
FIG. 1 — Lineage of K260509, 1991–2026Source: 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), 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 QKB? 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 QKB device

  1. #1 K191928 AccuContourscore 32.8 · 14 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) 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.

TypeNumberDeviceApplicantDecidedRecalls
*K242729AutoContour (Model RADAC V4)
Summary page 6
…Page 6 === 3. Predicate Device Information Predicate Device AutoContour Model RADAC V5 (Subject Device) makes use of its prior submissions - AutoContour Model RADAC V4 (K242729) as the Predicate Device. The Indications for Use, patient population, functionality and technical components of this Predicate D…
Radformation, Inc.2024—
†K241837Limbus ContourLimbus Ai, Inc.2024—

What descends from it? (1)

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

NumberDeviceApplicantDecidedDescendants
K262452AutoContour (RADAC V6)Radformation, Inc.20260

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 35 years and passes through 7 companies; a new generation was cleared every 1.5 years on median.
  • 25 of the 117 ancestors have a recall of any class.
  • Of its descendants, K262452 (Radformation, Inc., 2026) has gone furthest, with 0 descendants of its own.

How does its category compare?

All QKB devices

QKB Radiological Image Processing Software For Radiation Therapy: FDA decisions, review times, recalls and adverse event reports over 20 years. 2026, this device’s year, is highlighted.

FDA decisions per year · QKB

6in 2025

2018: 12020: 42021: 92022: 72023: 72024: 62025: 62026 (partial year): 9
2007high 9 (2021) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · QKB

170in 2025

2020: 244 days median2021: 120 days median2022: 162 days median2023: 111 days median2024: 173 days median2025: 170 days median2026 (partial year): 179 days median
2007high 244 (2020) · low 111 (2023)2026

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

Recalls per year · QKB

No recall names QKB since 2007.

Adverse event reports per year · QKB

No MAUDE report names QKB since 2007.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—00
20080—00
20090—00
20100—00
20110—00
20120—00
20130—00
20140—00
20150—00
20160—00
20170—00
20181—00
20190—00
2020424400
2021912000
2022716200
2023711100
2024617300
2025617000
202691790—

What is it indicated for?

AutoContour is intended to assist radiation treatment planners in contouring and reviewing structures within medical images in preparation for radiation therapy treatment planning.

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

Cite this page

510(k) Report. “K260509: AutoContour (RADAC V5).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K260509

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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