510(k) Report

510(k) · Cleared

Recalled · 2012

MLCI2

K082122510(k) SpecialCleared Aug 29, 200832-day reviewClass II21 CFR 892.5050Recalls 1

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

Elekta, Ltd. · IYE Accelerator, Linear, Medical

Cleared on Aug 29, 2008 as substantially equivalent to K963624 (Philips Medical Systems, Inc., 1996) after a 32-day review. Its family tree reaches back 1 generation to 1996. 38 later devices descend from it. It has been recalled once.

Decided
Aug 29, 2008
Review
32 days
Class
Class II
Product code
IYE
Recalls
1
Predicates
1

Its longest line of descent runs back 1 generation to K963624 (1996). 38 later devices descend from it, 1 citing it directly.

Descendants, by year cleared 2012: 1 descendant cleared2013: 1 descendant cleared2018: 3 descendants cleared2014: 2 descendants cleared2015: 2 descendants cleared2019: 1 descendant cleared2017: 4 descendants cleared2016: 1 descendant cleared2021: 4 descendants cleared2022: 2 descendants cleared2026: 4 descendants cleared2025: 2 descendants cleared2020: 2 descendants cleared2023: 7 descendants cleared2024: 2 descendants clearedK963624 · Philips Sli Series Linear Accelerator · Philips Medical Systems, Inc. · 1996 · recalled1995200020052010201520202025
Descendants, by generation 1 generation forward: 1 descendant2 generations forward: 1 descendant3 generations forward: 2 descendants4 generations forward: 3 descendants5 generations forward: 5 descendants6 generations forward: 5 descendants7 generations forward: 4 descendants8 generations forward: 5 descendants9 generations forward: 4 descendants10 generations forward: 4 descendants11 generations forward: 3 descendants12 generations forward: 1 descendant K963624 · Philips Sli Series Linear Accelerator · Philips Medical Systems, Inc. · 1996 · recalled0+5+10
  1. Root · 1 generation backK963624 Philips Sli Series Linear AcceleratorPhilips Medical Systems, Inc. · 1996 · Recalled
  2. This deviceK082122 MLCI2Elekta, Ltd. · 2008
  3. Descendant · cites it directly · 37 of its ownK121328 AgilityElekta, Ltd. · 2012 · Recalled
  4. Descendant · 2 generations on · 36 of its ownK123808 AgilityElekta, Ltd. · 2013 · Recalled
  5. Descendant · 3 generations on · 31 of its ownK140528 True Beam, True Beam STX, EdgeVarian Medical Systems, Inc. · 2014 · Recalled
  6. Descendant · 4 generations on · 25 of its ownK143224 TrueBeam-TrueBeam STx-EdgeVarian Medical Systems, Inc. · 2014 · Recalled
  7. Descendant · 5 generations on · 23 of its ownK162472 TrueBeam-TrueBeam STx-EdgeVarian Medical Systems, Inc. · 2017

Showing 5 of 38 descendants. See all descendants

Descendants cleared per year

2012: 12013: 12014: 22015: 22016: 12017: 42018: 32019: 12020: 22021: 42022: 22023: 72024: 22025: 22026: 4
2012high 7 (2023) · low 1 (2012)2026

Most influential descendants

Showing 5 of 38 · See all
  • K121328AgilityElekta, Ltd. · 2012 · cites it directly37descendants
  • K123808AgilityElekta, Ltd. · 2013 · 2 generations on36descendants
  • K140528True Beam, True Beam STX, EdgeVarian Medical Systems, Inc. · 2014 · 3 generations on31descendants
  • K143224TrueBeam-TrueBeam STx-EdgeVarian Medical Systems, Inc. · 2014 · 4 generations on25descendants
  • K162472TrueBeam-TrueBeam STx-EdgeVarian Medical Systems, Inc. · 2017 · 5 generations on23descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1K963624Philips Sli Series Linear AcceleratorPhilips Medical Systems, Inc.19962
0 (this device)K082122MLCI2Elekta, Ltd.2008—
+1K121328AgilityElekta, Ltd.20123
+2K123808AgilityElekta, Ltd.20132
+3K140528True Beam, True Beam STX, EdgeVarian Medical Systems, Inc.20142
+4K143224TrueBeam-TrueBeam STx-EdgeVarian Medical Systems, Inc.20141
+5K162472TrueBeam-TrueBeam STx-EdgeVarian Medical Systems, Inc.2017—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201210
201310
201420
201520
201610
201740
201830
201910
202020
202140
202220
202370
202420
202520
202640
FIG. 1 — Lineage of K082122, 1996–2026Source: 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 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
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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.

TypeNumberDeviceApplicantDecidedRecalls
*K963624Philips Sli Series Linear Accelerator
Summary page 1
…MLCi2 Common Name: Multileaf Collimator Classification Name: Medical Linear Accelerator Accessory, lYE Predicate Device: MLCi (K963624) Product Description: This Special 510(k) describes modifications to the MLCi multileaf collimator for use as an accessory…
Philips Medical Systems, Inc.19962

Also cleared against K963624: 3 other devices →

What descends from it? (38)

See all 38

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

NumberDeviceApplicantDecidedDescendants
K121328AgilityElekta, Ltd.201237

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

Recalls of this device

DateClassRecallRoot causeReason
Apr 19, 2012Not classifiedZ-1651-2012Nonconforming Material/ComponentThe Y2 diaphragm block was found loose.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • Its one ancestor has a recall.
  • Of its descendants, K121328 (Elekta, Ltd., 2012) has gone furthest, with 37 descendants of its own.
  • 3 other devices also cite its predicate K963624.

How does its category compare?

All IYE devices

IYE Accelerator, Linear, Medical: FDA decisions, review times, recalls and adverse event reports over 20 years. 2008, 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?

The MLCi2 Multileaf collimator is indicated for use when additional flexibility is required in conforming the radiation beam to the anatomy to be exposed.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K082122: MLCI2.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K082122

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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