510(k) · Cleared
ClearedExplorer 3D
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Our Scientific Intl., Inc. · MUJ System, Planning, Radiation Therapy Treatment
Cleared on Aug 13, 1999 as substantially equivalent to K970464 (Northwest Medical Physics Equipment, Inc., 1997) after a 78-day review. Its family tree reaches back 1 generation to 1997.
- Decided
- Aug 13, 1999
- Review
- 78 days
- Class
- Class II
- Product code
- MUJ
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 1 generation to K970464 (1997). No later device cites it as a predicate yet.
- Root · 1 generation backK970464 P Reference TPS (Treatment Planning Software) 1.1Northwest Medical Physics Equipment, Inc. · 1997
- This deviceK991815 Explorer 3DOur Scientific Intl., Inc. · 1999
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −1 | K970464 | P Reference TPS (Treatment Planning Software) 1.1 | Northwest Medical Physics Equipment, Inc. | 1997 | — |
| 0 (this device) | K991815 | Explorer 3D | Our Scientific Intl., Inc. | 1999 | — |
Sources: FDA 510(k) database (decision fields), the FDA 510(k) statement (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? (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 |
|---|---|---|---|
| * | K970464 | P Reference TPS (Treatment Planning Software) 1.1Summary page 2…510 (k) Number (if known): (new pro Device Name: . Explorer 3D Indications For Use: The indications for use are applicable as previously presented for pReference TPS (K970464), such intracranial diseases as gliomas, neuromas, meningiomas, astroctyomas, arteriovenous malformations, and metastatic carcino… | 1997 |
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?
- Its one ancestor has no recall.
- 3 other devices also cite its predicate K970464.
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.
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 indications for use are applicable as previously presented for pReference TPS (K970464), such intracranial diseases as gliomas, neuromas, meningiomas, astroctyomas, arteriovenous malformations, and metastatic carcinomas.
The software is used to electronically import CT images containing the target to be irradiated, to determine the precise location of the the target, to define and visualize treatment beam locations, and to visualize dose to the target and other structures.
Indications for use read by OCR from a scanned FDA 510(k) statement, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K991815 · printed Nov 4, 2026
Cite this page
510(k) Report. “K991815: Explorer 3D.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K991815
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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