The StealthStation® System is intended as an aid for precisely locating anatomical structures in either open or percutaneous procedures. The StealthStation® System is indicated for any medical condition in which the use of stereotactic surgery may be appropriate, and where reference to a rigid anatomical structure, such as the skull, a long bone, or vertebra, can be identified relative to a CT-based or MR-based model, fluoroscopy images, or digitized landmarks of the anatomy.
Device Story
StealthStation System provides real-time surgical navigation; uses radiological patient images (CT/MR/fluoroscopy) to create translation map between patient anatomy and images. Surgeon uses system to plan/simulate surgical trajectories and create 2D/3D anatomical models. During surgery, system tracks specialized instruments via optical or electromagnetic sensors; continuously updates instrument position on images. Used in OR by surgeons to guide planning and approach; improves precision in locating anatomical structures. System includes hardware (digitizer/localizer, computer, reference frames) and software (operating system for resource management/data processing). Output displayed to surgeon to assist in clinical decision-making during procedures.
Clinical Evidence
Bench testing only. Verification and regression testing performed to confirm functionality and compatibility of the new operating system. No clinical data provided.
Technological Characteristics
Stereotaxic instrument; optical (infra-red) or electromagnetic tracking; hardware includes digitizer/localizer, computer, and reference frames. Software runs on Debian Linux operating system. Connectivity via standard computing hardware interfaces.
Indications for Use
Indicated for patients requiring stereotactic surgery where anatomical structures (skull, long bone, vertebra) can be referenced against CT, MR, fluoroscopy, or digitized landmarks. Applicable for open or percutaneous procedures.
Regulatory Classification
Identification
A stereotaxic instrument is a device consisting of a rigid frame with a calibrated guide mechanism for precisely positioning probes or other devices within a patient's brain, spinal cord, or other part of the nervous system.
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# 510(k) Summary
# January 2, 2014
# K133444 JUL 2 5 2014
- I. Company: Medtronic Navigation, Inc. 826 Coal Creek Circle Louisville, Colorado 80027 USA Telephone Number: 720-890-3200 Fax Number: 720-890-3500
- Contact: Kaye Waite Regulatory Affairs Specialist Telephone Number: 720-890-2182 Fax Number: 720-890-3709
- Proprietary Trade Name: StealthStation® System II.
- III. Common Name: Stereotaxic Instrument
- Classification Name: Stereotaxic Instrument (21 CFR 882.4560) IV.
- V. Classification: Class II (21 CFR 882.4560)
- VI. Product Code: HAW, OLO
#### VII. Product Description:
The StealthStation® System includes hardware and software that enables realtime surgical navigation using radiological patient images. The navigation system creates a translation map between points in the patient anatomy and the corresponding points on radiologic images of the patient. Once this map is established (through a process called registration), the software can display the relative position of a tracked instrument to a representation of the patient's anatomy. In this way the images can help guide the surgeon's planning and approach. Prior to operating, the surgeon may then create, store, and simulate progression along one or more surgical trajectories. As an aid to visualization, the surgeon may also create and manipulate one or more 2D or 3D models of the anatomy. During surgery, the system tracks the position of specialized surgical instruments in or on the patient anatomy and continuously updates the instrument position on these images either by optical tracking or electromagnetic tracking.
The operating system is software that controls the execution of programs, and that provides services such as resource allocation, scheduling, input/output control, and data management. This includes managing computer system hardware and software resources and providing a common set of services for software applications to interface with computing hardware.
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#### VIII. Indications for Use:
The StealthStation® System is intended as an aid for precisely locating anatomical structures in either open or percutaneous procedures. The StealthStation® System is indicated for any medical condition in which the use of stereotactic surgery may be appropriate, and where reference to a rigid anatomical structure, such as the skull, a long bone, or vertebra, can be identified relative to a CT-based or MR-based model, fluoroscopy images, or digitized landmarks of the anatomy.
#### IX. Identification of Legally Marketing Devices (Predicate Devices)
- StealthStation® System Update (K050438) .
#### X. Comparison of the Technological Characteristics:
The subject of this 510(k) is the StealthStation® System with an off-the-shelf operating system, which represents a minor modification to the StealthStation® System predicate device (K050438). The difference between the predicate and the subject device is the change to the operating system from proprietary to off-the-shelf. No changes have been made to the StealthStation® operating principle or hardware due to the change to the operating system.
| Item | Subject Devices | Predicate Devices |
|------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Indications for Use | The StealthStation® System is intended as<br>an aid for precisely locating anatomical<br>structures in either open or percutaneous<br>procedures. The StealthStation® System is<br>indicated for any medical condition in<br>which the use of stereotactic surgery may<br>be appropriate, and where reference to a<br>rigid anatomical structure, such as the<br>skull, a long bone, or vertebra, can be<br>identified relative to a CT or MR based<br>model, fluoroscopy images, or digitized<br>landmarks of the anatomy. | StealthStation System Update - K050438<br>The StealthStation® System is intended as an<br>aid for precisely locating anatomical<br>structures in either open or percutaneous<br>procedures. The StealthStation® System is<br>indicated for any medical condition in which<br>the use of stereotactic surgery may be<br>appropriate, and where reference to a rigid<br>anatomical structure, such as the skull, a long<br>bone, or vertebra, can be identified relative to<br>a CT or MR based model, fluoroscopy<br>images, or digitized landmarks of the<br>anatomy.<br>Includes a list of clinical procedures. |
| Operating Principle<br>(Tracking Method) | Identical | StealthStation System Update - K050438<br>Optical (infra-red)<br>EM |
| Control Mechanism<br>(Hardware) | Identical | StealthStation System Update - K050438<br>Digitizer/Localizer<br>Computer<br>Reference Frames |
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| System Accuracy | Identical | StealthStation System Update - K050438<br>Stand-alone accuracy was reported in<br>K050438 and will not change with the update<br>to the operating system. |
|------------------|--------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------|
| Operating System | Debian Linux | StealthStation System Update - K050438<br>Linux (GemOS) |
.. The subject devices have the same intended use and technological characteristics as the predicate devices.
#### XI. Discussion of the Performance Testing
Testing was completed to ensure the functionality and compatibility with the identified Medtronic products. The following table summarizes the performance testing completed:
| Test | Description | Result |
|------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------|
| Verification<br>(Functional) | Provides confirmation that the design and implementation of the operating system and all operating system infrastructure correctly fulfills all product requirements | Verification successful, operating system fulfills all product requirements |
| | Verification<br>(Regression) | Provides confidence that after a change to a product, unchanged but vulnerable portions of the product have not been adversely affected. |
| Validation | | Ensures that the product meets the needs of the end user. |
All tests passed, which demonstrates that the performance of the subject operating system is equivalent to that of the predicate device.
#### XII. Conclusions
The StealthStation® System with the Debian operating system has been shown through comparison and testing to be substantially equivalent to the identified predicate devices.
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Image /page/3/Picture/1 description: The image is a black and white seal for the Department of Health & Human Services - USA. The seal is circular with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is an abstract image of an eagle.
Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
July 25, 2014
Medtronic Navigation. Inc. Ms. Kaye Waite Senior Regulatory Affairs Specialist 826 Coal Creek Circle Louisville, CO 80027
Re: K133444
> Trade/Device Name: StealthStation® System Regulation Number: 21 CFR 882.4560 Regulation Name: Stereotaxic Instrument Regulatory Class: Class II Product Code: HAW, OLO Dated: June 26, 2014 Received: June 27, 2014
Dear Ms. Waite:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you; however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set
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Page 2 - Ms. Kaye Waite
forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.goy/MedicalDevices/ResourcesforYou/Industry/default.htm. Also, please note the regulation entitled. "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
Carlos L. Pena -S
Carlos L. Peña, PhD, MS Director Division of Neurological and Physical Medicine Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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## DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
## Indications for Use
Form Approved: OMB No, 0910-0120 Expiration Date: January 31, 2017 See PRA Statement below.
510(k) Number (if known) K133444
Device Name StealthStation System
## Indications for Use (Describe)
The StealthStation System is intended as an aid for precisely locating an either open or perculancous procedures. The SteathStation System is indical condition in which the use of stereotactic surgery may be appropriate, and where reference to a rigid anatomical structure, such as long bone, or vertebra, can be identified relative to a CT-hased model, fluoroscopy images, or digitized landmarks of the anatomy,
Type of Use (Select one or both, as applicable)
Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON A SEPARATE PAGE IF NEEDED.
### FOR FDA USE ONLY
Concurrence of Center for Devices and Radiological Health (CDRH) (Signature)
# Carlos L. Pena -S
This section applies only to requirements of the Paperwork Reduction Act of 1995.
### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW."
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and mainlain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff@fda.hhs.gov
"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.