510(k) · Cleared
ClearedMRIdian Linac System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Viewray, Incorporated · IYE Accelerator, Linear, Medical
Cleared on Dec 14, 2021 as substantially equivalent to K181989 (Viewray, Incorporated, 2019) after an 89-day review. Its family tree reaches back 11 generations to 2001.
- Decided
- Dec 14, 2021
- Review
- 89 days
- Class
- Class II
- Product code
- IYE
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 11 generations to K010975 (2001). 42 ancestors in all, the oldest K864886 (1987). No later device cites it as a predicate yet.
- Root · 11 generations backK010975 Eclipse 6.5Varian Medical Systems, Inc. · 2001 · Recalled
- 7 generations between
- 3 generations backK162393 The ViewRay (MRIdian) Linac SystemViewray, Incorporated · 2017
- 2 generations backK170751 MRIdian Linac System with 138-leaf CollimatorViewray, Incorporated · 2017 · Recalled
- 1 generation backK181989 MRIdian Linac SystemViewray, Incorporated · 2019 · Recalled
- This deviceK212958 MRIdian Linac SystemViewray, Incorporated · 2021
Show all 11 generations
- Root · 11 generations backK010975 Eclipse 6.5Varian Medical Systems, Inc. · 2001 · Recalled
- 10 generations backK030981 EclipseVarian Medical Systems, Inc. · 2003
- 9 generations backK041403 Eclipse with AaaVarian Medical Systems · 2004
- 8 generations backK050296 Eclipse Treatment Planning SystemVarian Medical Systems · 2005
- 7 generations backK071873 Modification to Eclipse Treatment Planning SystemVarian Medical Systems, Inc. · 2007 · Recalled
- 6 generations backK073020 Eclipse Treatment Planning SystemVarian Medical Systems, Inc. · 2007 · Recalled
- 5 generations backK091492 Modification to Eclipse Treatment Planning SystemVarian Medical Systems, Inc. · 2009 · Recalled
- 4 generations backK102915 Viewray Treatment Planning and Delivery SystemViewray, Incorporated · 2011 · Recalled
- 3 generations backK162393 The ViewRay (MRIdian) Linac SystemViewray, Incorporated · 2017
- 2 generations backK170751 MRIdian Linac System with 138-leaf CollimatorViewray, Incorporated · 2017 · Recalled
- 1 generation backK181989 MRIdian Linac SystemViewray, Incorporated · 2019 · Recalled
- This deviceK212958 MRIdian Linac SystemViewray, Incorporated · 2021
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −11 | K010975 | Eclipse 6.5 | Varian Medical Systems, Inc. | 2001 | 3 |
| −10 | K030981 | Eclipse | Varian Medical Systems, Inc. | 2003 | — |
| −9 | K041403 | Eclipse with Aaa | Varian Medical Systems | 2004 | — |
| −8 | K050296 | Eclipse Treatment Planning System | Varian Medical Systems | 2005 | — |
| −7 | K071873 | Modification to Eclipse Treatment Planning System | Varian Medical Systems, Inc. | 2007 | 5 |
| −6 | K073020 | Eclipse Treatment Planning System | Varian Medical Systems, Inc. | 2007 | 6 |
| −5 | K091492 | Modification to Eclipse Treatment Planning System | Varian Medical Systems, Inc. | 2009 | 2 |
| −4 | K102915 | Viewray Treatment Planning and Delivery System | Viewray, Incorporated | 2011 | 1 |
| −3 | K162393 | The ViewRay (MRIdian) Linac System | Viewray, Incorporated | 2017 | — |
| −2 | K170751 | MRIdian Linac System with 138-leaf Collimator | Viewray, Incorporated | 2017 | 4 |
| −1 | K181989 | MRIdian Linac System | Viewray, Incorporated | 2019 | 2 |
| 0 (this device) | K212958 | MRIdian Linac System | Viewray, Incorporated | 2021 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1987 | 1 | 0 |
| 1991 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 0 |
| 2004 | 3 | 0 |
| 2005 | 2 | 0 |
| 2006 | 2 | 0 |
| 2007 | 3 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2012 | 1 | 0 |
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 K252977 Halcyon, Ethos Radiotherapy System (5.0)score 18.8 · 18 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the 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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K181989 | MRIdian Linac SystemSummary page 5…Product Code: IYE, LNH Primary Predicate Device: MRIdian Linac System K181989 ViewRay Headquarters California Office 2 Thermo Fisher Way… | 2019 |
What descends from it?
No later submission names this one as a predicate yet.
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 20 years and passes through 3 companies; a new generation was cleared every 1.6 years on median.
- 28 of the 42 ancestors have a recall of any class.
How does its category compare?
All IYE devicesIYE Accelerator, Linear, Medical: FDA decisions, review times, recalls and adverse event reports over 20 years. 2021, this device’s year, is highlighted.
FDA decisions per year · IYE
12in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · IYE
170in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · IYE
1in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · IYE
101in 2025
MAUDE reports naming product code IYE, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 23 | 44 | 78 | 155 |
| 2008 | 14 | 69 | 49 | 114 |
| 2009 | 20 | 63 | 22 | 174 |
| 2010 | 23 | 74 | 27 | 246 |
| 2011 | 11 | 94 | 73 | 280 |
| 2012 | 28 | 106 | 20 | 128 |
| 2013 | 18 | 88 | 11 | 96 |
| 2014 | 20 | 100 | 14 | 124 |
| 2015 | 20 | 108 | 8 | 100 |
| 2016 | 21 | 97 | 7 | 97 |
| 2017 | 23 | 94 | 7 | 125 |
| 2018 | 21 | 58 | 7 | 85 |
| 2019 | 19 | 83 | 2 | 91 |
| 2020 | 20 | 67 | 4 | 74 |
| 2021 | 19 | 86 | 5 | 68 |
| 2022 | 12 | 172 | 3 | 66 |
| 2023 | 18 | 129 | 7 | 128 |
| 2024 | 9 | 239 | 1 | 81 |
| 2025 | 12 | 170 | 1 | 101 |
| 2026 | 14 | 120 | 4 | — |
What is it indicated for?
The MRIdian Linac system, with magnetic resonance imaging capabilities, is intended to provide stereotactic radiosurgery
and precision radiotherapy for lesions, tumors, and conditions anywhere in the body where radiation treatment is
indicated.
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K212958 · printed Nov 6, 2026
Cite this page
510(k) Report. “K212958: MRIdian Linac System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K212958
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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