510(k) · Cleared
Recalled · 2011Varian Unique Single Energy Linear Accelerator
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Varian Medical Systems, Oncology Systems · IYE Accelerator, Linear, Medical
Cleared on Aug 10, 2010 as substantially equivalent to K072916 (Varian Medical Systems, Inc., 2007) after a 49-day review. Its family tree reaches back 5 generations to 1991. 3 later devices descend from it. It has been recalled once.
- Decided
- Aug 10, 2010
- Review
- 49 days
- Class
- Class II
- Product code
- IYE
- Recalls
- 1
- Predicates
- 1
Its longest line of descent runs back 5 generations to K913119 (1991). 7 ancestors in all. 3 later devices descend from it, 2 citing it directly.
- Root · 5 generations backK913119 Varian C-Series Clinacs (Clinac 2300C/D)Varian Assoc., Inc. · 1991 · Recalled
- 4 generations backK033343 Trilogy Radiotherapy Delivery SystemVarian Medical Systems, Inc. · 2003 · Recalled
- 3 generations backK061140 Trilogy Radiotherapy Delivery SystemVarian Medical Systems · 2006
- 2 generations backK070094 Trilogy Radiotherapy Delivery System and Trilogy TX Delivery SystemVarian Medical Systems, Inc. · 2007 · Recalled
- 1 generation backK072916 Trilogy System with RapidarcVarian Medical Systems, Inc. · 2007 · Recalled
- This deviceK101751 Varian Unique Single Energy Linear AcceleratorVarian Medical Systems, Oncology Systems · 2010
- Descendant · cites it directly · 1 of its ownK132705 UniqueVarian Medical Systems, Inc. · 2013 · Recalled
- Descendant · cites it directly · 0 of its ownK232489 VenusXLinatech, LLC · 2024
- Descendant · 2 generations on · 0 of its ownK181404 Varian High Energy Linear Accelerator, UNIQUE, Varian Multileaf…Varian Medical Systems, Inc. · 2018 · Recalled
Most influential descendants
Showing 3 of 3 · See allView FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −5 | K913119 | Varian C-Series Clinacs (Clinac 2300C/D) | Varian Assoc., Inc. | 1991 | 6 |
| −4 | K033343 | Trilogy Radiotherapy Delivery System | Varian Medical Systems, Inc. | 2003 | 3 |
| −3 | K061140 | Trilogy Radiotherapy Delivery System | Varian Medical Systems | 2006 | — |
| −2 | K070094 | Trilogy Radiotherapy Delivery System and Trilogy TX Delivery System | Varian Medical Systems, Inc. | 2007 | 5 |
| −1 | K072916 | Trilogy System with Rapidarc | Varian Medical Systems, Inc. | 2007 | 2 |
| 0 (this device) | K101751 | Varian Unique Single Energy Linear Accelerator | Varian Medical Systems, Oncology Systems | 2010 | — |
| +1 | K132705 | Unique | Varian Medical Systems, Inc. | 2013 | 1 |
| +1 | K232489 | VenusX | Linatech, LLC | 2024 | — |
| +2 | K181404 | Varian High Energy Linear Accelerator, UNIQUE, Varian Multileaf Collimator | Varian Medical Systems, Inc. | 2018 | 1 |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2000 | 1 | 0 |
| 2004 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2013 | 1 | 0 |
| 2018 | 1 | 0 |
| 2024 | 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 |
|---|---|---|---|
| * | K072916 | Trilogy System with RapidarcSummary page 1…0 Class II Product Code: 90 lYE 3. Predicate Device: Varian Trilogy K(072916 4. Description of the Device: The UNIQUE is a Single Energy Linear Accelerator and includes modifications t… | 2007 |
What descends from it? (3)
2 later devices cite it directly; ranked here by how many devices descend from each in turn.
Has anything in its family been recalled? (0 Class I)
Recalls of this device
| Date | Class | Recall | Root cause | Reason |
|---|---|---|---|---|
| Nov 28, 2011 | Not classified | Z-0483-2012 | Device Design | An event has been reported to Varian which entails excessive connector resistance, which caused the actual jaw positions to differ from the intended jaw positions without warning the operator. |
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 19 years and passes through 4 companies; a new generation was cleared every 2.4 years on median.
- 5 of the 7 ancestors have a recall of any class.
- Of its descendants, K132705 (Varian Medical Systems, Inc., 2013) has gone furthest, with 1 descendant of its own.
- 5 other devices also cite its predicate K072916.
How does its category compare?
All IYE devicesIYE Accelerator, Linear, Medical: FDA decisions, review times, recalls and adverse event reports over 20 years. 2010, 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 UNIQUE is indicated for stereotactic radiosurgery and precision radiotherapy for lesions, tumors and conditions anywhere in the body when radiation treatment is indicated.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K101751 · printed Nov 6, 2026
Cite this page
510(k) Report. “K101751: Varian Unique Single Energy Linear Accelerator.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K101751
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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