510(k) Report

510(k) · Cleared

Cleared

Mobius3D

K192424510(k) SpecialCleared Oct 3, 201928-day reviewClass II21 CFR 892.5050

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

Varian Medical Systems, Inc. · IYE Accelerator, Linear, Medical

Cleared on Oct 3, 2019 as substantially equivalent to K191761 (Varian Medical Systems, Inc., 2019) after a 28-day review. Its family tree reaches back 12 generations to 1996. 4 later devices descend from it.

Decided
Oct 3, 2019
Review
28 days
Class
Class II
Product code
IYE
Recalls
None
Predicates
1

Its longest line of descent runs back 12 generations to K954874 (1996). 77 ancestors in all, the oldest K871859 (1987). 4 later devices descend from it, 1 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 2014: 1 other ancestor2009: 1 other ancestor2007: 2 other ancestors2006: 3 other ancestors2004: 6 other ancestors2001: 9 other ancestors2005: 1 other ancestor2003: 3 other ancestors1999: 2 other ancestors1998: 3 other ancestors1997: 4 other ancestors2002: 3 other ancestors1995: 4 other ancestors1994: 2 other ancestors1993: 2 other ancestors1992: 3 other ancestors1991: 5 other ancestors1987: 1 other ancestor2000: 3 other ancestors1990: 2 other ancestors1988: 1 other ancestor1996: 3 other ancestors1989: 1 other ancestor2021: 1 descendant cleared2025: 2 descendants cleared2023: 1 descendant clearedK954874 · Spectef Protocol · GE Medical Systems · 1996K980914 · Emory Cardiac Tool Box · Emory University · 1998K992450 · Emory Cardiac Toolbox* 2.0 Executing on Nuclear Medicine Computers · Emory University · 1999K014033 · Emory Cardiac Toolbox 2.1 Executing on Nuclear Medicine Computers · Syntermed, Inc. · 2002K040141 · Emory Cardiac Toolbox Version 2.6 · Syntermed, Inc. · 2004K052379 · Mim 3.5 (Circa) · Mimvista Corp. · 2005×2: 2 generations cleared close together, K060816 (2006), K062163 (2006) K070248 · Velocityais · Velocity Medical Solutions, LLC · 2007K081076 · Velocityais, Velocity AI, Velocityvx, Velocityrt, V-Response · Velocity Medical Solutions, LLC · 2008 · recalledK153014 · Mobius3D · Mobius Medical Systems, LP · 2016K191761 · Mobius3D · Varian Medical Systems, Inc. · 20191990200020102020
  1. Root · 12 generations backK954874 Spectef ProtocolGE Medical Systems · 1996
  2. 8 generations between
  3. 3 generations backK081076 Velocityais, Velocity AI, Velocityvx, Velocityrt, V-ResponseVelocity Medical Solutions, LLC · 2008 · Recalled
  4. 2 generations backK153014 Mobius3DMobius Medical Systems, LP · 2016
  5. 1 generation backK191761 Mobius3DVarian Medical Systems, Inc. · 2019
  6. This deviceK192424 Mobius3DVarian Medical Systems, Inc. · 2019
  7. Descendant · cites it directly · 3 of its ownK203669 Mobius3DVarian Medical Systems, Inc. · 2021
  8. Descendant · 2 generations on · 1 of its ownK223834 AccuCheckManteia Technologies Co., Ltd. · 2023
  9. Descendant · 3 generations on · 0 of its ownK250696 AccuCheckManteia Technologies Co., Ltd. · 2025
  10. Descendant · 2 generations on · 0 of its ownK250099 Mobius3D (4.1)Varian Medical Systems · 2025
Show all 12 generations
  1. Root · 12 generations backK954874 Spectef ProtocolGE Medical Systems · 1996
  2. 11 generations backK980914 Emory Cardiac Tool BoxEmory University · 1998
  3. 10 generations backK992450 Emory Cardiac Toolbox* 2.0 Executing on Nuclear Medicine ComputersEmory University · 1999
  4. 9 generations backK014033 Emory Cardiac Toolbox 2.1 Executing on Nuclear Medicine ComputersSyntermed, Inc. · 2002
  5. 8 generations backK040141 Emory Cardiac Toolbox Version 2.6Syntermed, Inc. · 2004
  6. 7 generations backK052379 Mim 3.5 (Circa)Mimvista Corp. · 2005
  7. 6 generations backK060816 Mim 4.0 (NeuroMimvista Corp. · 2006 · Recalled
  8. 5 generations backK062163 MimviewerMimvista Corp. · 2006
  9. 4 generations backK070248 VelocityaisVelocity Medical Solutions, LLC · 2007
  10. 3 generations backK081076 Velocityais, Velocity AI, Velocityvx, Velocityrt, V-ResponseVelocity Medical Solutions, LLC · 2008 · Recalled
  11. 2 generations backK153014 Mobius3DMobius Medical Systems, LP · 2016
  12. 1 generation backK191761 Mobius3DVarian Medical Systems, Inc. · 2019
  13. This deviceK192424 Mobius3DVarian Medical Systems, Inc. · 2019

Most influential descendants

Showing 4 of 4 · See all
  • K203669Mobius3DVarian Medical Systems, Inc. · 2021 · cites it directly3descendants
  • K223834AccuCheckManteia Technologies Co., Ltd. · 2023 · 2 generations on1descendant
  • K250696AccuCheckManteia Technologies Co., Ltd. · 2025 · 3 generations on0descendants
  • K250099Mobius3D (4.1)Varian Medical Systems · 2025 · 2 generations on0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−12K954874Spectef ProtocolGE Medical Systems1996—
−11K980914Emory Cardiac Tool BoxEmory University1998—
−10K992450Emory Cardiac Toolbox* 2.0 Executing on Nuclear Medicine ComputersEmory University1999—
−9K014033Emory Cardiac Toolbox 2.1 Executing on Nuclear Medicine ComputersSyntermed, Inc.2002—
−8K040141Emory Cardiac Toolbox Version 2.6Syntermed, Inc.2004—
−7K052379Mim 3.5 (Circa)Mimvista Corp.2005—
−6K060816Mim 4.0 (NeuroMimvista Corp.20061
−5K062163MimviewerMimvista Corp.2006—
−4K070248VelocityaisVelocity Medical Solutions, LLC2007—
−3K081076Velocityais, Velocity AI, Velocityvx, Velocityrt, V-ResponseVelocity Medical Solutions, LLC20081
−2K153014Mobius3DMobius Medical Systems, LP2016—
−1K191761Mobius3DVarian Medical Systems, Inc.2019—
0 (this device)K192424Mobius3DVarian Medical Systems, Inc.2019—
+1K203669Mobius3DVarian Medical Systems, Inc.2021—
+2K223834AccuCheckManteia Technologies Co., Ltd.2023—
+3K250696AccuCheckManteia Technologies Co., Ltd.2025—
+2K250099Mobius3D (4.1)Varian Medical Systems2025—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
198710
198810
198910
199020
199150
199230
199320
199420
199540
199630
199740
199830
199920
200030
200190
200230
200330
200460
200510
200630
200720
200910
201410

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202110
202310
202520
FIG. 1 — Lineage of K192424, 1996–2025Source: 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), 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 IYE? 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 IYE device

  1. #1 K252977 Halcyon, Ethos Radiotherapy System (5.0)score 18.8 · 18 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
*K191761Mobius3D
Summary page 4
…Class II Product Code: IYE Common/Usual Name Mobius3D Predicate Devices Mobius3D (v2.2) K191761 Indications for Use Mobius3D software is used for quality assurance, treatment plan ve…
Varian Medical Systems, Inc.2019—

What descends from it? (4)

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

NumberDeviceApplicantDecidedDescendants
K203669Mobius3DVarian Medical Systems, Inc.20213

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 23 years and passes through 7 companies; a new generation was cleared every 1.8 years on median.
  • 17 of the 77 ancestors have a recall of any class.
  • Of its descendants, K203669 (Varian Medical Systems, Inc., 2021) has gone furthest, with 3 descendants of its own.

How does its category compare?

All IYE devices

IYE Accelerator, Linear, Medical: FDA decisions, review times, recalls and adverse event reports over 20 years. 2019, this device’s year, is highlighted.

FDA decisions per year · IYE

12in 2025

2007: 232008: 142009: 202010: 232011: 112012: 282013: 182014: 202015: 202016: 212017: 232018: 212019: 192020: 202021: 192022: 122023: 182024: 92025: 122026 (partial year): 14
2007high 28 (2012) · low 9 (2024)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · IYE

170in 2025

2007: 44 days median2008: 69 days median2009: 63 days median2010: 74 days median2011: 94 days median2012: 106 days median2013: 88 days median2014: 100 days median2015: 108 days median2016: 97 days median2017: 94 days median2018: 58 days median2019: 83 days median2020: 67 days median2021: 86 days median2022: 172 days median2023: 129 days median2024: 239 days median2025: 170 days median2026 (partial year): 120 days median
2007high 239 (2024) · low 44 (2007)2026

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

Recalls per year · IYE

1in 2025

2007: 782008: 492009: 222010: 272011: 732012: 202013: 112014: 142015: 82016: 72017: 72018: 72019: 22020: 42021: 52022: 32023: 72024: 12025: 12026 (partial year): 4
2007high 78 (2007) · low 1 (2024)2026

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

Adverse event reports per year · IYE

101in 2025

2007: 1552008: 1142009: 1742010: 2462011: 2802012: 1282013: 962014: 1242015: 1002016: 972017: 1252018: 852019: 912020: 742021: 682022: 662023: 1282024: 812025: 101
2007high 280 (2011) · low 66 (2022)2025

MAUDE reports naming product code IYE, 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
2007234478155
2008146949114
2009206322174
2010237427246
2011119473280
20122810620128
201318881196
20142010014124
2015201088100
20162197797
201723947125
20182158785
20191983291
20202067474
20211986568
202212172366
2023181297128
20249239181
2025121701101
2026141204—

What is it indicated for?

Mobius3D software is used for quality assurance, treatment plan verification, and patient alignment and anatomy analysis in radiation therapy. It calculates radiation dose three-dimensionally in a representation of a patient or a phantom. The calculation is based on read-in treatment plans that are initially calculated by a treatment planning system and may additionally be based on external measurements of radiation fields from other sources such as…

Read the full statement (121 words)

Mobius3D software is used for quality assurance, treatment plan verification, and patient alignment and anatomy analysis in radiation therapy. It calculates radiation dose three-dimensionally in a representation of a patient or a phantom. The calculation is based on read-in treatment plans that are initially calculated by a treatment planning system and may additionally be based on external measurements of radiation fields from other sources such as linac delivery log data. Patient alignment and anatomy analysis is based on read-in treatment planning images (such as computed tomography) and read-in daily treatment images (such as registered cone beam computed tomography).

Mobius3D is not a treatment planning system. It is only to be used by trained radiation oncology personnel as a quality assurance tool.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K192424: Mobius3D.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K192424

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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