510(k) · Cleared
Recalled · 2010Modification to Cyberknife Robotic Radiosurgery System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Accuray, Inc. · MUJ System, Planning, Radiation Therapy Treatment
Cleared on May 1, 2009 after an 11-day review. The FDA summary names no predicate by number. It has been recalled 3 times.
- Decided
- May 1, 2009
- Review
- 11 days
- Class
- Class II
- Product code
- MUJ
- Recalls
- 3
- Predicates
- 0
The FDA summary names no predicate by number.
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 MUJ? 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 MUJ device
- #1 K232799 syngo.via RT Image Suitescore 18.6 · 19 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against?
The FDA summary names no predicate by number.
What descends from it?
No later submission names this one as a predicate yet.
Has anything in its family been recalled? (0 Class I)
Recalls of this device
| Date | Class | Recall | Root cause | Reason |
|---|---|---|---|---|
| Jul 6, 2010 | Not classified | Z-0890-2011 | Device Design | Latches responsible for securing the cover to the device may come lose if not properly secured and the cover may unexpectedly drop off. A design change is planned. |
| Jan 15, 2010 | Not classified | Z-1023-2011 | Software design | When a user modified the align center of an existing plan during the treatment planning process the effective depths of each beam in the plan were not updated by the system. These depths were incorrect and led to an incorrect dose… |
| Dec 29, 2009 | Not classified | Z-1008-2011 | Employee error | If electron density values are left empty, the calculation of radiation dose in a patient will be modeled as air-like density material rather than correct density. A plan may be created and saved, thus creating the risk of mistreatment. |
No ancestor or descendant has a Class I recall.
How does its category compare?
All MUJ devicesMUJ System, Planning, Radiation Therapy Treatment: FDA decisions, review times, recalls and adverse event reports over 20 years. 2009, this device’s year, is highlighted.
FDA decisions per year · MUJ
10in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · MUJ
186in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · MUJ
2in 2023
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · MUJ
21in 2025
MAUDE reports naming product code MUJ, 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 | 4 | 67 | 4 | 24 |
| 2008 | 9 | 63 | 10 | 51 |
| 2009 | 16 | 84 | 11 | 24 |
| 2010 | 11 | 56 | 23 | 78 |
| 2011 | 9 | 103 | 17 | 73 |
| 2012 | 8 | 59 | 4 | 39 |
| 2013 | 5 | 64 | 6 | 33 |
| 2014 | 9 | 108 | 2 | 35 |
| 2015 | 13 | 78 | 7 | 30 |
| 2016 | 5 | 80 | 13 | 27 |
| 2017 | 7 | 30 | 4 | 16 |
| 2018 | 7 | 53 | 3 | 25 |
| 2019 | 9 | 56 | 4 | 25 |
| 2020 | 9 | 104 | 2 | 26 |
| 2021 | 11 | 87 | 4 | 15 |
| 2022 | 8 | 168 | 3 | 22 |
| 2023 | 10 | 140 | 2 | 76 |
| 2024 | 9 | 122 | 0 | 9 |
| 2025 | 10 | 186 | 0 | 21 |
| 2026 | 9 | 233 | 2 | — |
What is it indicated for?
The CyberKnife® Robotic Radiosurgery System is indicated for treatment
planning and image guided 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/K091146 · printed Nov 5, 2026
Cite this page
510(k) Report. “K091146: Modification to Cyberknife Robotic Radiosurgery System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K091146
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Page last updated Nov 3, 2026