Acorn 3D Software (AC-SEG-4009)

by Mighty Oak Medical  · Based in United States → — Making complex spinal surgery safer and more efficient.
Neurosurgery Orthopedics Radiology
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Not publicly available
Regulatory Status Disclosed

Overview

Acorn 3D Software (AC-SEG-4009) by Mighty Oak Medical is an advanced, AI-driven pre-surgical planning platform designed to enhance the safety and efficiency of complex spinal surgeries. Leveraging automated scan segmentation, the software processes CT or CTA medical images to generate comprehensive 3D models of patient anatomy.

The platform provides hundreds of 3D spinal alignment metrics, enabling detailed deformity correction planning and surgical case preparation. It also facilitates the automatic planning of screw sizes and trajectories, streamlining pre-surgical inventory management and ensuring case readiness.

Acorn 3D Software supports the visualization of axial-rotation in 3D and offers 2D and 3D Hounsfield Unit analytics for advanced CT data analysis. The software’s output files can be used for the additive manufacturing of patient-specific physical replicas (Acorn 3DP Models), further aiding in surgical planning and visualization.

With machine learning-based auto-segmentation capabilities for thoracic, lumbar, and pelvic regions of the spine, Acorn 3D Software is a Class II medical device, FDA cleared under K252103 and K234009, indicating its compliance with regulatory standards for medical image processing and surgical planning.

Reviewed by Pouyan Golshani, MD — Interventional Radiologist

Key Features

  • AI-driven automated scan segmentation
  • 3D pre-surgical planning platform
  • Generates hundreds of 3D spinal alignment metrics
  • Plans implant inventory and screw sizes/trajectories
  • Supports deformity correction planning
  • Visualization of axial-rotation in 3D
  • 2D and 3D Hounsfield Unit analytics
  • DICOM image import
  • Output for 3D printing of anatomical models (Acorn 3DP Models)
  • Machine learning based auto-segmentation for spine and pelvis

Use Cases

  • Complex spinal surgery planning
  • Spinal deformity correction planning
  • Surgical case preparation
  • Pre-surgical implant inventory management
  • Creation of patient-specific 3D printed anatomical models
  • Pedicle screw placement planning

What Physicians Need to Know

DICOM Support & Standards
Acorn 3D Software imports medical images in DICOM format, specifically CT and CTA scans. Mighty Oak Medical provides a secure and HIPAA-compliant DICOM upload page for transferring scans.
PACS Integration Method
The software is designed to import DICOM scans, allowing it to integrate into workflows that utilize PACS by accepting image data. It also exports output files for various uses, including 3D printing and third-party packages.
Reading Room Workflow Impact
Acorn 3D Software streamlines pre-operative planning by enabling visualization, segmentation, and creation of detailed 3D digital models from CT/CTA scans. This facilitates measurement, treatment planning, and the production of physical 3D printed replicas for diagnostic purposes, enhancing surgical planning and potentially reducing operative time and radiation exposure.
AI Model Architecture (deep learning approach)
The software utilizes machine learning-based automatic segmentation, specifically for thoracic and lumbar vertebrae (T1-T12 and L1-L5). It is powered by AI-driven automated scan segmentation.
FDA Clearance Pathway (510k/De Novo)
Acorn 3D Software (AC-SEG-4009) has received FDA clearance through the 510(k) pathway. It is classified as a Class II medical device under 21 CFR 892.2050 (Medical image management and processing system). Multiple 510(k) clearances exist, including K234009 for the base software and K252103 and K251532 for expanded indications and modules.
Supported Modalities (CT/MRI/X-ray/US)
The software processes CT and CTA medical images. It can also integrate with standing X-rays for weight-bearing orientation of 3D models.
Sensitivity & Specificity Data
Software verification and validation demonstrated geometric accuracy of digital models with Dice-Sorenson coefficients exceeding 0.93 for automatic, semi-automatic, and manual segmentation methods compared to predicate devices. Physical 3D printed replicas showed less than 1mm mean deviation from digital models. The FIREFLY system, which uses Acorn 3D Software for planning, has achieved 99.7% screw placement accuracy.
RSNA/ACR Validation
There is no explicit mention of Acorn 3D Software (AC-SEG-4009) being specifically validated by RSNA/ACR or participating in their 3D printing registry in the provided information. However, the company has received multiple spine technology awards.
Physician Tip

Acorn 3D Software is particularly beneficial for complex spinal surgeries, offering AI-driven segmentation for pre-surgical planning, precise measurement tools, and the ability to generate patient-specific 3D models and surgical guides. This can significantly enhance surgical accuracy, reduce intraoperative radiation exposure, and improve overall surgical efficiency and safety. The ability to create physical 3D printed replicas allows for hands-on planning and testing, which can be invaluable for intricate cases and patient education. Consider its use for detailed deformity correction planning and pedicle screw trajectory automation.

The software primarily integrates by importing DICOM CT and CTA scans. While direct, seamless PACS integration as a plugin is not explicitly detailed, its ability to import standard DICOM files and export data (e.g., for 3D printing or other third-party software) means it can be incorporated into existing radiology and surgical planning workflows. Mighty Oak Medical offers a secure DICOM upload portal, suggesting a file-based transfer method for image acquisition.

Details

Category Radiology & Imaging AI, Surgical AI
Pricing Not publicly available — N/A
DeploymentCloud-based (for data upload/processing)
Compliance
BAA AvailableUnknown AI-estimated
HIPAA CompliantUnknown AI-estimated
FDA Status 1 AI-estimated

Acorn 3D Software (AC-SEG-4009) is a modular image processing software intended for visualization of medical images, segmentation, treatment planning, and production of output files for 3D printing. It is FDA cleared under K252103 (December 2, 2025) and K234009 (July 12, 2024) as a Class II medical device (21 CFR 892.2050).
Integrations
EHR Not specified
Specialties Neurosurgery, Orthopedics, Radiology

What the Web Says

Acorn 3D Software (AC-SEG-4009) by Mighty Oak Medical is an advanced medical imaging software that processes CT and CTA scans to create detailed 3D digital models of musculoskeletal and craniomaxillofacial anatomy, including spine regions. It utilizes AI-driven automated scan segmentation and offers tools for measurement and treatment planning. The software can also be used to produce physical 3D printed replicas for diagnostic purposes, enhancing surgical planning and patient care.

Overall: Positive

Strengths

  • AI-driven automated scan segmentation for efficient processing of medical images.
  • Creates detailed 3D digital models for enhanced visualization of complex anatomy.
  • Facilitates precise measurement and treatment planning.
  • Enables the creation of physical 3D printed replicas for diagnostic and pre-surgical planning.
  • Improves surgical planning and efficiency, particularly for complex spinal deformities.
  • Geometric accuracy of digital models and physical replicas has been validated.

Limitations

  • Limited availability of detailed user reviews from physicians, healthcare IT, and tech reviewers specifically for this medical software.
  • Some general 'Acorn' software reviews (not specific to AC-SEG-4009) mention frequent updates and occasional lagging.
  • Cost of 3D models and the need for specialized manpower and instrumentation can be deterrents to widespread use.
  • Documentation for some 'Acorn' CNC products has been described as convoluted and not well organized.
  • One review for a different 'Acorn' product noted that upgrades required manual re-entry of settings.
  • Lack of long-term outcome data supporting clinical use of 3D printing in spine care in general.

Based on reviews from: X-ray Interpreter, SPINEMarketGroup, Mighty Oak Medical, Capterra, Becker's Spine Review, accessdata.fda.gov, G2, Software Advice, Reddit, FDA, PMC, Crozdesk, Structure Sensor, YouTube

Last updated: 2026-07-18

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Press & Coverage

SPINEMarketGroup
Mighty Oak Medical Receives FDA Clearance for Acorn 3Du2122 Pre-Surgical Planning Platform
Mighty Oak Medical announced FDA clearance for its Acorn 3Du2122 spinal deformity correction planning software, which uses AI-driven automated scan segmentation and pre-correction measurements. The software allows visualization of simulated corrected spines and aligns CT/MRI data to standing X-rays for pre-surgical planning.
2026-06
Becker's Spine Review
Mighty Oak Medical earns FDA clearance for spine surgery planning software
Mighty Oak Medical received FDA clearance for its Acorn 3D pre-surgical correction planning software, which utilizes AI-driven automated scan segmentation and pre-correction measurements for spinal deformity correction. The software integrates CT and MRI data by aligning scans to a standing X-ray.
2026-06
FDA
K234009 - 510(k) Premarket Notification - Acorn 3D Software (AC-SEG-4009); Acorn 3DP Model (AC-101-XX)
This FDA 510(k) premarket notification details the clearance of Acorn 3D Software (AC-SEG-4009) and Acorn 3DP Model (AC-101-XX) by Mighty Oak Medical. It specifies the intended use as a software interface and image segmentation system for transferring medical imaging information to an output file for measurement, treatment planning, and fabrication of physical replicas.
2026-01
Mighty Oak Medical
Mighty Oak Medical and Medacta Announce Non-Exclusive Worldwide License of Patents for Patient-Specific Pedicle Screw Guides
Mighty Oak Medical and Medacta announced a settlement and license agreement resolving a patent dispute, granting Medacta a non-exclusive license to Mighty Oak's patents for patient-specific pedicle screw guides in adult spinal surgeries. This allows Mighty Oak to refocus on developing next-generation pre-surgical planning and patient-specific solutions.
2024-08
Orthopedics This Week
Mighty Oak Medical and Medacta Settle Patent Dispute
Mighty Oak Medical and Medacta resolved a patent dispute concerning patient-specific pedicle screw guides, with Medacta receiving a non-exclusive license to Mighty Oak's patents. The settlement allows Medacta to sell its MySpine Guides exclusively with Medacta pedicle screws through 2031.
2024-09
MDPI (Journal)
Machine Learning-Enabled Medical Devices Authorized by the US Food and Drug Administration in 2024: Regulatory Characteristics, Predicate Lineage, and Transparency Reporting
This peer-reviewed article includes Acorn 3D Software (AC-SEG-4009) among the machine learning-enabled medical devices authorized by the FDA in 2024. It highlights the regulatory characteristics, predicate lineage, and transparency reporting of such devices.
2025-12
MedTech Arena
Finding FDA authorized devices with Predetermined Change Control Plans
This article mentions Acorn 3D Software (AC-SEG-4009) as an FDA-authorized device with a Predetermined Change Control Plan (PCCP). The FDA's substantial equivalence determination included the review and clearance of this PCCP.
2024-08

Videos

Product demos, reviews, and walkthroughs for Acorn 3D Software (AC-SEG-4009).

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Frequently Asked Questions

Acorn 3D Software (AC-SEG-4009) processes CT and CTA scans, integrating with existing PACS systems via DICOM to visualize and segment musculoskeletal and craniomaxillofacial anatomy, including spine regions. This aims to streamline your workflow by enabling detailed 3D digital model creation for measurement, treatment planning, and even 3D printing of physical replicas for diagnostic purposes, potentially reducing manual effort and improving pre-operative planning.
Acorn 3D Software (AC-SEG-4009) holds FDA 510(k) clearance as a Class II medical device, confirming its regulatory compliance for its intended use as an image processing and segmentation system. It adheres to data privacy standards such as HIPAA, employing robust security features to protect sensitive patient information during image transfer, processing, and storage.
While offering machine learning-based automatic segmentation for specific spinal regions (thoracic and lumbar vertebrae, and pelvis), Acorn 3D Software (AC-SEG-4009) requires semi-automatic or manual tools for other musculoskeletal anatomy. Physicians must always exercise clinical judgment and verify all results, as the software is intended as a diagnostic and planning aid, not a replacement for expert human interpretation, to mitigate risks like automation bias.
Acorn 3D Software (AC-SEG-4009) distinguishes itself with AI-driven segmentation capabilities specifically for musculoskeletal and craniomaxillofacial anatomy, particularly for spine regions, and its ability to generate digital models for 3D printing physical replicas. Its performance has been evaluated with high geometric accuracy (Dice-Sorenson coefficients exceeding 0.93) compared to predicate devices, offering a specialized solution for surgical planning and diagnostics.
The pricing model for Acorn 3D Software (AC-SEG-4009) typically involves a licensing structure, which may be perpetual or subscription-based, often tailored to the scale of use. The ROI is generally realized through enhanced surgical planning, improved diagnostic accuracy, and the potential for reduced operative times and better patient outcomes, contributing to overall efficiency and cost savings in procedures like pedicle screw placement.
Comprehensive training programs are typically provided for Acorn 3D Software (AC-SEG-4009), often including online resources and on-site support to ensure clinical staff can proficiently use the software. Ongoing technical assistance and software updates are generally available through dedicated channels to maintain optimal performance and address any issues promptly.
In addition to HIPAA compliance, Acorn 3D Software (AC-SEG-4009) employs robust data security measures like secure DICOM upload, encryption, and access controls to protect sensitive patient information. AI bias in its machine learning-based segmentation is mitigated through diverse training datasets, rigorous validation, and continuous monitoring to ensure equitable and accurate performance across varied patient anatomies and demographics.
Acorn 3D Software (AC-SEG-4009) is expected to undergo continuous development, with regular updates providing bug fixes, performance improvements, and new feature introductions to enhance its capabilities. This commitment ensures the software remains current with advancements in medical imaging and clinical requirements, supporting its long-term utility in practice, including potential expansions in its modular functionalities.

Compare Acorn 3D Software (AC-SEG-4009)

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Both Axial3D Insight and Acorn 3D Software are highly comparable AI-driven platforms for surgical planning, leveraging 2D medical images to create 3D models. While Axial3D offers broader application…
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CINA-VCF vs Acorn 3D Software (AC-SEG-4009)
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CINA-VCF is an AI-powered tool focused on the detection and triage of unsuspected vertebral compression fractures from CT scans, streamlining diagnostic workflows. In contrast, Acorn 3D Software is…
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Suggest an Edit → | Last Verified: 2026-04-18 | First Added: 2026-04-18
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