510(k) Report

510(k) · Cleared

Cleared

ClearRT Helical kVCT for the Radixact Treatment Delivery System

K202412510(k) TraditionalCleared Dec 18, 2020116-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

Accuray Incorporated · IYE Accelerator, Linear, Medical

Cleared on Dec 18, 2020 as substantially equivalent to K161146 (Accuray Incorporated, 2016) after a 116-day review. Its family tree reaches back 12 generations to 1992. 1 later device descends from it.

Decided
Dec 18, 2020
Review
116 days
Class
Class II
Product code
IYE
Recalls
None
Predicates
1

Its longest line of descent runs back 12 generations to K914698 (1992). 28 ancestors in all, the oldest K882729 (1988). 1 later device descends from it, 1 citing it directly.

  1. Root · 12 generations backK914698 Setup Computer with Software V-1261,62 and 63K.S., Inc. · 1992
  2. 8 generations between
  3. 3 generations backK112776 Tomotherapy Treatment System Fast OptimizerTomotherapy Incorporated · 2011
  4. 2 generations backK121934 Tomotherapy Treatment SystemAccuray Incorporated · 2012 · Recalled
  5. 1 generation backK161146 Radixact Treatment Delivery SystemAccuray Incorporated · 2016 · Recalled
  6. This deviceK202412 ClearRT Helical kVCT for the Radixact Treatment Delivery SystemAccuray Incorporated · 2020
  7. Descendant · cites it directly · 0 of its ownK223159 Radixact Treatment Delivery SystemAccuray Incorporated · 2023
Show all 12 generations
  1. Root · 12 generations backK914698 Setup Computer with Software V-1261,62 and 63K.S., Inc. · 1992
  2. 11 generations backK980904 Mucheck Monitor Unit Validation ProgramMedical Dosimetry Services, Inc. · 1998
  3. 10 generations backK990833 Dose Calc, Model VS. 1.02Integrity Medical Software, Inc. · 1999
  4. 9 generations backK993923 Adac PINNACLE3TM Radiation Therapy Planning SystemAdac Laboratories · 2000
  5. 8 generations backK013673 HI-Art SystemTomo Therapy, Inc. · 2002
  6. 7 generations backK033347 Modification to: HI-Art SystemTomotherapy Incorporated · 2003
  7. 6 generations backK042739 HI-Art SystemTomotherapy Incorporated · 2004
  8. 5 generations backK060912 Modification to: HI-Art SystemTomotherapy Incorporated · 2006 · Recalled
  9. 4 generations backK082005 Modification to HI-Art Treatment SystemTomotherapy Incorporated · 2008 · Recalled
  10. 3 generations backK112776 Tomotherapy Treatment System Fast OptimizerTomotherapy Incorporated · 2011
  11. 2 generations backK121934 Tomotherapy Treatment SystemAccuray Incorporated · 2012 · Recalled
  12. 1 generation backK161146 Radixact Treatment Delivery SystemAccuray Incorporated · 2016 · Recalled
  13. This deviceK202412 ClearRT Helical kVCT for the Radixact Treatment Delivery SystemAccuray Incorporated · 2020

Most influential descendants

Showing 1 of 1 · See all
  • K223159Radixact Treatment Delivery SystemAccuray Incorporated · 2023 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−12K914698Setup Computer with Software V-1261,62 and 63K.S., Inc.1992—
−11K980904Mucheck Monitor Unit Validation ProgramMedical Dosimetry Services, Inc.1998—
−10K990833Dose Calc, Model VS. 1.02Integrity Medical Software, Inc.1999—
−9K993923Adac PINNACLE3TM Radiation Therapy Planning SystemAdac Laboratories2000—
−8K013673HI-Art SystemTomo Therapy, Inc.2002—
−7K033347Modification to: HI-Art SystemTomotherapy Incorporated2003—
−6K042739HI-Art SystemTomotherapy Incorporated2004—
−5K060912Modification to: HI-Art SystemTomotherapy Incorporated20064
−4K082005Modification to HI-Art Treatment SystemTomotherapy Incorporated20087
−3K112776Tomotherapy Treatment System Fast OptimizerTomotherapy Incorporated2011—
−2K121934Tomotherapy Treatment SystemAccuray Incorporated20128
−1K161146Radixact Treatment Delivery SystemAccuray Incorporated20161
0 (this device)K202412ClearRT Helical kVCT for the Radixact Treatment Delivery SystemAccuray Incorporated2020—
+1K223159Radixact Treatment Delivery SystemAccuray Incorporated2023—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
198810
198910
199010
199210
199310
199440
199610
199840
200120

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202310
FIG. 1 — Lineage of K202412, 1992–2023Source: 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
*K161146Radixact Treatment Delivery System
Summary page 4
…charged-particle radiation therapy system Regulatory Class: Class II Product Code: IYE Predicate Device Radixact Treatment Delivery System (K161146) Reference Device: Motion Tracking And Compensation Feature For The Radixact Treatment Delivery System (K182687) Device Descri…
Accuray Incorporated20161
†K182687Motion Tracking and Compensation Feature for the Radixact Treatment Delivery SystemAccuray Incorporated2018—

Also cleared against K161146: 1 other device →

What descends from it? (1)

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

NumberDeviceApplicantDecidedDescendants
K223159Radixact Treatment Delivery SystemAccuray Incorporated20230

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 28 years and passes through 7 companies; a new generation was cleared every 1.8 years on median.
  • 8 of the 28 ancestors have a recall of any class.
  • Of its descendants, K223159 (Accuray Incorporated, 2023) has gone furthest, with 0 descendants of its own.
  • 1 other device also cites its predicate K161146.

How does its category compare?

All IYE devices

IYE Accelerator, Linear, Medical: FDA decisions, review times, recalls and adverse event reports over 20 years. 2020, 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 kVCT Imaging Feature is an option within the indications for use of the Radixact Treatment Delivery System. The Radixact Treatment Delivery System is indicated for the delivery of radiation therapy, stereotactic radiotherapy or stereotactic radiosurgery to tumors or other targeted tissues anywhere in the body under the direction of a licensed medical practitioner.

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. “K202412: ClearRT Helical kVCT for the Radixact Treatment Delivery System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K202412

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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