510(k) · Cleared
ClearedAcorn 3D Software (AC-SEG-4009); Acorn 3DP Model (AC-101-XX)
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Mighty Oak Medical · LLZ System, Image Processing, Radiological
Cleared on Nov 3, 2025 as substantially equivalent to K234009 (Mighty Oak Medical, 2024) and 1 other predicate after a 168-day review. Its family tree reaches back 10 generations to 1990.
- Decided
- Nov 3, 2025
- Review
- 168 days
- Class
- Class II
- Product code
- LLZ
- Recalls
- None
- Predicates
- 2
Its longest line of descent runs back 10 generations to K896095 (1990). 32 ancestors in all. No later device cites it as a predicate yet.
- Root · 10 generations backK896095 Images-on-Call Teleradiology SystemDevices & Services Co. · 1990
- 6 generations between
- 3 generations backK073714 Traumacad Version 2.0Orthocrat, Ltd. · 2008
- 2 generations backK111019 Surgimap (TM) SpineNemaris, Inc. · 2011
- 1 generation backK141669 SurgimapNemaris, Inc. · 2014
- This deviceK251532 Acorn 3D Software (AC-SEG-4009); Acorn 3DP Model (AC-101-XX)Mighty Oak Medical · 2025
Show all 10 generations
- Root · 10 generations backK896095 Images-on-Call Teleradiology SystemDevices & Services Co. · 1990
- 9 generations backK962699 Radworks Medical Imaging SoftwareApplicare Medical Imaging, B.V. · 1996
- 8 generations backK982862 Radworks Medical Imaging Software with Quality Control ModuleApplicare Medical Imaging, B.V. · 1998
- 7 generations backK012211 Efilm WorkstationEfilm Medical, Inc. · 2001 · Recalled
- 6 generations backK020995 Efilm Workstation with ModulesEfilm Medical, Inc. · 2002 · Recalled
- 5 generations backK032401 OrthoviewOmsbar, Ltd. · 2003
- 4 generations backK042816 Traumacad 1.2Orthocrat, Ltd. · 2004
- 3 generations backK073714 Traumacad Version 2.0Orthocrat, Ltd. · 2008
- 2 generations backK111019 Surgimap (TM) SpineNemaris, Inc. · 2011
- 1 generation backK141669 SurgimapNemaris, Inc. · 2014
- This deviceK251532 Acorn 3D Software (AC-SEG-4009); Acorn 3DP Model (AC-101-XX)Mighty Oak Medical · 2025
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −10 | K896095 | Images-on-Call Teleradiology System | Devices & Services Co. | 1990 | — |
| −9 | K962699 | Radworks Medical Imaging Software | Applicare Medical Imaging, B.V. | 1996 | — |
| −8 | K982862 | Radworks Medical Imaging Software with Quality Control Module | Applicare Medical Imaging, B.V. | 1998 | — |
| −7 | K012211 | Efilm Workstation | Efilm Medical, Inc. | 2001 | 1 |
| −6 | K020995 | Efilm Workstation with Modules | Efilm Medical, Inc. | 2002 | 2 |
| −5 | K032401 | Orthoview | Omsbar, Ltd. | 2003 | — |
| −4 | K042816 | Traumacad 1.2 | Orthocrat, Ltd. | 2004 | — |
| −3 | K073714 | Traumacad Version 2.0 | Orthocrat, Ltd. | 2008 | — |
| −2 | K111019 | Surgimap (TM) Spine | Nemaris, Inc. | 2011 | — |
| −1 | K141669 | Surgimap | Nemaris, Inc. | 2014 | — |
| 0 (this device) | K251532 | Acorn 3D Software (AC-SEG-4009); Acorn 3DP Model (AC-101-XX) | Mighty Oak Medical | 2025 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1991 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2017 | 1 | 0 |
| 2019 | 2 | 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 LLZ? 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 LLZ device
- #1 K230955 syngo Application Softwarescore 21.5 · 11 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 |
|---|---|---|---|
| * | K234009 | Acorn 3D Software (AC-SEG-4009); Acorn 3DP Model (AC-101-XX)Summary page 5…Acorn Segmentation & 3DP Model 510(k) Product Code Trade Name Manufacturer Primary Predicate Device K234009 LLZ, QIH Acorn 3D Software Mighty Oak Medical Subsequent Predicate Device K141… | 2024 |
| * | K141669 | SurgimapSummary page 5…Primary Predicate Device K234009 LLZ, QIH Acorn 3D Software Mighty Oak Medical Subsequent Predicate Device K141669 LLZ Surgimap Nemaris Inc. Introduction This 510(k) filing seeks to expand the indica… | 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 35 years and passes through 7 companies; a new generation was cleared every 3.0 years on median.
- 5 of the 32 ancestors have a recall of any class.
- 1 other device also cites its predicate K234009.
How does its category compare?
All LLZ devicesLLZ System, Image Processing, Radiological: FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, this device’s year, is highlighted.
FDA decisions per year · LLZ
58in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · LLZ
173in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · LLZ
11in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · LLZ
116in 2025
MAUDE reports naming product code LLZ, 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 | 76 | 36 | 20 | 152 |
| 2008 | 94 | 52 | 32 | 154 |
| 2009 | 70 | 62 | 21 | 145 |
| 2010 | 51 | 98 | 17 | 145 |
| 2011 | 106 | 79 | 30 | 454 |
| 2012 | 82 | 87 | 12 | 266 |
| 2013 | 95 | 84 | 64 | 1,130 |
| 2014 | 78 | 89 | 6 | 15,631 |
| 2015 | 64 | 90 | 16 | 211 |
| 2016 | 82 | 90 | 12 | 290 |
| 2017 | 78 | 107 | 5 | 104 |
| 2018 | 104 | 105 | 7 | 72 |
| 2019 | 74 | 107 | 2 | 88 |
| 2020 | 81 | 115 | 6 | 82 |
| 2021 | 83 | 116 | 3 | 70 |
| 2022 | 65 | 137 | 4 | 28 |
| 2023 | 87 | 157 | 8 | 26 |
| 2024 | 62 | 131 | 6 | 42 |
| 2025 | 58 | 173 | 11 | 116 |
| 2026 | 45 | 110 | 14 | — |
What is it indicated for?
Acorn 3D Software is a modular image processing software intended for use as an interface for visualization of medical images, segmentation, treatment planning, and production of an output file. The Acorn 3D Segmentation module is intended for use as a software interface and image segmentation system for the transfer of CT or CTA medical images to an output file. Acorn 3D Segmentation is also intended for measuring and treatment planning. The Acorn 3D…
Read the full statement (156 words)
Acorn 3D Software is a modular image processing software intended for use as an interface for visualization of medical images, segmentation, treatment planning, and production of an output file.
The Acorn 3D Segmentation module is intended for use as a software interface and image segmentation system for the transfer of CT or CTA medical images to an output file. Acorn 3D Segmentation is also intended for measuring and treatment planning. The Acorn 3D Segmentation output can also be used for the fabrication of physical replicas of the output file using additive manufacturing methods, Acorn 3DP Models. The physical replica can be used for diagnostic purposes in the field of musculoskeletal and craniomaxillofacial applications.
The Acorn 3D Trajectory Automation module may be used to plan pedicle screw placement in the thoracic and lumbar regions of the spine in pediatric and adult patients.
Acorn 3D Software and 3DP Models should be used in conjunction with expert clinical judgment.
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K251532 · printed Nov 5, 2026
Cite this page
510(k) Report. “K251532: Acorn 3D Software (AC-SEG-4009); Acorn 3DP Model (AC-101-XX).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K251532
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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