510(k) · Cleared
ClearedAccuray Precision Treatment Planning System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Accuray Incorporated · IYE Accelerator, Linear, Medical
Cleared on Jun 8, 2017 as substantially equivalent to K161136 (Accuray Incorporated, 2016) after a 57-day review. Its family tree reaches back 12 generations to 1992. 1 later device descends from it.
- Decided
- Jun 8, 2017
- Review
- 57 days
- Class
- Class II
- Product code
- IYE
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 12 generations to K914698 (1992). 29 ancestors in all, the oldest K882729 (1988). 1 later device descends from it, 1 citing it directly.
- Root · 12 generations backK914698 Setup Computer with Software V-1261,62 and 63K.S., Inc. · 1992
- 8 generations between
- 3 generations backK112776 Tomotherapy Treatment System Fast OptimizerTomotherapy Incorporated · 2011
- 2 generations backK121934 Tomotherapy Treatment SystemAccuray Incorporated · 2012 · Recalled
- 1 generation backK161136 Precision Treatment Planning SystemAccuray Incorporated · 2016
- This deviceK171086 Accuray Precision Treatment Planning SystemAccuray Incorporated · 2017
- Descendant · cites it directly · 0 of its ownK212794 Accuray Precision Treatment Planning SystemAccuray Incorporated · 2021
Show all 12 generations
- Root · 12 generations backK914698 Setup Computer with Software V-1261,62 and 63K.S., Inc. · 1992
- 11 generations backK980904 Mucheck Monitor Unit Validation ProgramMedical Dosimetry Services, Inc. · 1998
- 10 generations backK990833 Dose Calc, Model VS. 1.02Integrity Medical Software, Inc. · 1999
- 9 generations backK993923 Adac PINNACLE3TM Radiation Therapy Planning SystemAdac Laboratories · 2000
- 8 generations backK013673 HI-Art SystemTomo Therapy, Inc. · 2002
- 7 generations backK033347 Modification to: HI-Art SystemTomotherapy Incorporated · 2003
- 6 generations backK042739 HI-Art SystemTomotherapy Incorporated · 2004
- 5 generations backK060912 Modification to: HI-Art SystemTomotherapy Incorporated · 2006 · Recalled
- 4 generations backK082005 Modification to HI-Art Treatment SystemTomotherapy Incorporated · 2008 · Recalled
- 3 generations backK112776 Tomotherapy Treatment System Fast OptimizerTomotherapy Incorporated · 2011
- 2 generations backK121934 Tomotherapy Treatment SystemAccuray Incorporated · 2012 · Recalled
- 1 generation backK161136 Precision Treatment Planning SystemAccuray Incorporated · 2016
- This deviceK171086 Accuray Precision Treatment Planning SystemAccuray Incorporated · 2017
Most influential descendants
Showing 1 of 1 · See all- K212794Accuray Precision Treatment Planning SystemAccuray Incorporated · 2021 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −12 | K914698 | Setup Computer with Software V-1261,62 and 63 | K.S., Inc. | 1992 | — |
| −11 | K980904 | Mucheck Monitor Unit Validation Program | Medical Dosimetry Services, Inc. | 1998 | — |
| −10 | K990833 | Dose Calc, Model VS. 1.02 | Integrity Medical Software, Inc. | 1999 | — |
| −9 | K993923 | Adac PINNACLE3TM Radiation Therapy Planning System | Adac Laboratories | 2000 | — |
| −8 | K013673 | HI-Art System | Tomo Therapy, Inc. | 2002 | — |
| −7 | K033347 | Modification to: HI-Art System | Tomotherapy Incorporated | 2003 | — |
| −6 | K042739 | HI-Art System | Tomotherapy Incorporated | 2004 | — |
| −5 | K060912 | Modification to: HI-Art System | Tomotherapy Incorporated | 2006 | 4 |
| −4 | K082005 | Modification to HI-Art Treatment System | Tomotherapy Incorporated | 2008 | 7 |
| −3 | K112776 | Tomotherapy Treatment System Fast Optimizer | Tomotherapy Incorporated | 2011 | — |
| −2 | K121934 | Tomotherapy Treatment System | Accuray Incorporated | 2012 | 8 |
| −1 | K161136 | Precision Treatment Planning System | Accuray Incorporated | 2016 | — |
| 0 (this device) | K171086 | Accuray Precision Treatment Planning System | Accuray Incorporated | 2017 | — |
| +1 | K212794 | Accuray Precision Treatment Planning System | Accuray Incorporated | 2021 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1996 | 1 | 0 |
| 1998 | 4 | 0 |
| 2001 | 2 | 0 |
| 2015 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2021 | 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 |
|---|---|---|---|
| * | K161136 | Precision Treatment Planning SystemSummary page 6…subject device (Accuray Precision™ Treatment Planning System with modifications) and the predicate device (Accuray Precision™ Treatment Planning System, last cleared on K161136) in terms of fundamental scientific technology or principles of operation. A brief summary of the technological characteristics o… | 2016 |
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K212794 | Accuray Precision Treatment Planning System | 2021 | 0 |
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 25 years and passes through 7 companies; a new generation was cleared every 1.8 years on median.
- 8 of the 29 ancestors have a recall of any class.
- Of its descendants, K212794 (Accuray Incorporated, 2021) has gone furthest, with 0 descendants of its own.
How does its category compare?
All IYE devicesIYE Accelerator, Linear, Medical: FDA decisions, review times, recalls and adverse event reports over 20 years. 2017, 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 Accuray Precision™ Treatment Planning System is indicated for creation and assessment of external photon beam irradiation treatment plans for radiation therapy, stereotactic radiotherapy or stereotactic radiosurgery for lesions, tumors and conditions anywhere in the body when radiation treatment is indicated. A treatment plan provides an estimate of the dose distribution and the parameters utilized by the radiation delivery system. Plans must be reviewed and approved by qualified medical practitioners prior to delivery.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K171086 · printed Nov 6, 2026
Cite this page
510(k) Report. “K171086: Accuray Precision Treatment Planning System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K171086
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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