510(k) · Cleared
ClearedDosimetry Check Version 5 Release 1
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Math Resolutions, LLC · IYE Accelerator, Linear, Medical
Cleared on Nov 18, 2016 as substantially equivalent to K132605 (Math Resolutions, LLC, 2013) and 1 other predicate after a 64-day review. Its family tree reaches back 5 generations to 1992.
- Decided
- Nov 18, 2016
- Review
- 64 days
- Class
- Class II
- Product code
- IYE
- Recalls
- None
- Predicates
- 2
Its longest line of descent runs back 5 generations to K914698 (1992). 17 ancestors in all, the oldest K874893 (1988). No later device cites it as a predicate yet.
- Root · 5 generations backK914698 Setup Computer with Software V-1261,62 and 63K.S., Inc. · 1992
- 4 generations backK980904 Mucheck Monitor Unit Validation ProgramMedical Dosimetry Services, Inc. · 1998
- 3 generations backK012227 Mucheck - Monitor Unit Validation Program, Model V4.1Oncology Data Systems, Inc. · 2001
- 2 generations backK072374 CompassScanditronix Wellhofer GmbH · 2007 · Recalled
- 1 generation backK140660 MOBIUS3DMobius Medical Systems, LP · 2014 · Recalled
- This deviceK162577 Dosimetry Check Version 5 Release 1Math Resolutions, LLC · 2016
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −5 | K914698 | Setup Computer with Software V-1261,62 and 63 | K.S., Inc. | 1992 | — |
| −4 | K980904 | Mucheck Monitor Unit Validation Program | Medical Dosimetry Services, Inc. | 1998 | — |
| −3 | K012227 | Mucheck - Monitor Unit Validation Program, Model V4.1 | Oncology Data Systems, Inc. | 2001 | — |
| −2 | K072374 | Compass | Scanditronix Wellhofer GmbH | 2007 | 3 |
| −1 | K140660 | MOBIUS3D | Mobius Medical Systems, LP | 2014 | 1 |
| 0 (this device) | K162577 | Dosimetry Check Version 5 Release 1 | Math Resolutions, LLC | 2016 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1988 | 1 | 0 |
| 1990 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1997 | 1 | 0 |
| 2001 | 2 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2006 | 1 | 0 |
| 2010 | 1 | 0 |
| 2013 | 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? (2)
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 |
|---|---|---|---|
| * | K132605 | Dosimetry Check Version 4 Release 1Summary page 4…Product Code IYE Identification of the Legally Marketed Devices (Predicate Devices) Dosimetry Check Version 4 Release 1, K132605 Mobius3D, K140660 Indications for Use • Dosimetry Check Version 5 Release 1 (Modified Device) Dosime… | 2013 |
| * | K140660 | MOBIUS3DSummary page 4…IYE Identification of the Legally Marketed Devices (Predicate Devices) Dosimetry Check Version 4 Release 1, K132605 Mobius3D, K140660 Indications for Use • Dosimetry Check Version 5 Release 1 (Modified Device) Dosimetry Check quality control software uses th… | 2014 |
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 24 years and passes through 6 companies; a new generation was cleared every 6.0 years on median.
- 2 of the 17 ancestors have a recall of any class.
- 3 other devices also cite its predicate K132605.
How does its category compare?
All IYE devicesIYE Accelerator, Linear, Medical: FDA decisions, review times, recalls and adverse event reports over 20 years. 2016, 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?
Dosimetry Check quality control software uses the radiation fields that are measured with media such as x-ray film, electronic portal imaging devices (EPID), diode or ion chamber arrays, or in the case of TomoTherapy, a fan line detector array, and provides a theoretical calculation. Dosimetry Check computes the dose and dose distribution using the patient specific CT or other image set or alternately a phantom that is likewise scanned, to calculate the…
Read the full statement (267 words)
Dosimetry Check quality control software uses the radiation fields that are measured with media such as x-ray film, electronic portal imaging devices (EPID), diode or ion chamber arrays, or in the case of TomoTherapy, a fan line detector array, and provides a theoretical calculation. Dosimetry Check computes the dose and dose distribution using the patient specific CT or other image set or alternately a phantom that is likewise scanned, to calculate the reconstructed dose that is then compared to the plan dose. The results reported can include the computed percent difference at specific points as compared to the patient specific radiation treatment plan.
Dosimetry Check does not provide any conclusions regarding the comparisons and does not provide any criteria to be used for interpreting the results. The experienced radiological physicist can reevaluate his patient specific radiation treatment plan in accordance with his clinical judgment.
This product is not a treatment planning system and is not to be used as one. This product only checks the applied dose based on the measurement of each x-ray field applied to the patient and provided in an exported file, and a theoretical calculation. The product can only be used with photons (high energy x-rays) and cannot be used with electron or proton therapy. This product does not provide any quality assurance that the fields are in fact correctly applied to and correctly aligned with the patient anatomy as planned. In addition, the product may be used to display the above dose on other fused image sets which could provide additional supportive quality information to the user regarding the correctness of treatment.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K162577 · printed Nov 6, 2026
Cite this page
510(k) Report. “K162577: Dosimetry Check Version 5 Release 1.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K162577
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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