The INTAI Surgery Navigation System is indicated for precise positioning of surgical instruments or spinal implants during general spinal surgery when reference to a rigid anatomical structure, such as the vertebra, can be identified relative to a patient's fluoroscopic or CT imagery. It is intended as a planning and intraoperative guidance system to enable open or percutaneous image guided surgery by means of registering intraoperative 2D fluoroscopic projections to pre-operative 3D CT imagery. Example procedures include but are not limited to: Posterior-approach spinal implant procedures, such as pedicle screw placement, within the lumbar region.
Device Story
INTAI Surgery Navigation System is an image-guided surgical planning and navigation tool for spinal procedures. It uses wireless optical tracking to monitor the position of surgical instruments relative to patient anatomy. Inputs include pre-operative 3D CT imagery and intra-operative 2D fluoroscopic projections. The system registers 2D projections to 3D CT data to establish a spatial coordinate transformation. The navigation cart, equipped with an optical tracker and medical panel PC, displays the tracked instrument's position in real-time on the patient's anatomical images. Surgeons use this visual feedback to guide instruments or implants during open or percutaneous spinal surgeries. The system includes modules for trajectory planning, image registration, and instrument auto-identification via a no-touch reader. It benefits patients by providing precise guidance for spinal implant placement, potentially improving surgical accuracy.
Clinical Evidence
No clinical testing conducted. System performance validated via bench testing and cadaveric study. Cadaveric study demonstrated mean positional error ≤ 3.0 mm and mean trajectory angle error ≤ 3.0 degrees.
Technological Characteristics
Optical tracking system; navigation cart with medical panel PC; wireless tracking. Software runs on Windows 7. Reusable accessories sterilized via moist heat (ISO 17665-1). Biocompatibility per ISO 10993-1. Electrical safety per ANSI/AAMI ES60601-1; EMC per IEC 60601-1-2. Accuracy evaluated per ASTM F2554-10.
Indications for Use
Indicated for precise positioning of surgical instruments or spinal implants during general spinal surgery (e.g., posterior-approach lumbar pedicle screw placement) where rigid anatomical structures (vertebrae) can be referenced against fluoroscopic or CT imagery.
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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September 20, 2019
Image /page/0/Picture/1 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.
Intai Technology Corporation Shih-Chang Chuang Manager No. 9 Jingke Rd., Nantun Dist., Taichung City, 40852 TW
Re: K180523
Trade/Device Name: INTAI Surgery Navigation System Regulation Number: 21 CFR 882.4560 Regulation Name: Stereotaxic Instrument Regulatory Class: Class II Product Code: OLO Dated: August 21, 2019 Received: August 23, 2019
Dear Shih-Chang Chuang:
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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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
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requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Shumaya Ali, M.P.H. Assistant Director DHT6C: Division of Restorative, Repair and Trauma Devices OHT6: Office of Orthopedic Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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### Indications for Use
510(k) Number (if known) K180523
Device Name INTAI Surgery Navigation System
#### Indications for Use (Describe)
The INTAI Surgery Navigation System is indicated for precise positioning of surgical instruments or spinal implants during general spinal surgery when reference to a rigid anatomical structure, such as the vertebra, can be identified relative to a patient's fluoroscopic or CT imagery. It is intended as a planning and intraoperative guidance system to enable open or percutaneous image guided surgery by means of registering intraoperative 2D fluoroscopic projections to pre-operative 3D CT imagery.
Example procedures include but are not limited to:
Posterior-approach spinal implant procedures, such as pedicle screw placement, within the lumbar region.
| Type of Use (Select one or both, as applicable) |
|-------------------------------------------------|
|-------------------------------------------------|
X Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
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This chapter provides a summary of 510(k) safety and effectiveness information in accordance with the requirements of 21 CFR 807.92.
### 5.1. Submitter's information
| Applicant name | INTAI Technology Corporation |
|------------------|--------------------------------------------------------------------------|
| Address | No. 9, JingKe Rd., Nantun Dist., Taichung City 40852, Taiwan<br>(R.O.C.) |
| Telephone number | +886-4-2359-5336 |
| Contact person | Teng-Kuan Tsai |
| Date prepared | August 15, 2019 |
#### 5.2. Device information
| Device name | INTAI Surgery Navigation System |
|---------------------|-------------------------------------------------------------------------------------------------------|
| Trade name | INTAI Surgery Navigation System |
| Common name | Surgery Navigation System for Spine |
| Classification name | Orthopedic Stereotaxic Instrument |
| Classification | Class II (21 CFR 882.4560) |
| Product code | OLO |
| Predicate device | Medtronic StealthStation System (K133444)<br>Primary product code: HAW<br>Secondary product code: OLO |
### 5.3. Device description
The INTAI Surgery Navigation System, also known as an image guided system, is comprised of navigation cart, software and its accessories. The system uses wireless optical tracking technology to identify the position of instruments relative to the patient's anatomy and displays such position on preoperative or intraoperative images of the patient. The images can help guide the surgeons during spinal surgical procedures, such as spinal fusion. The software links all system components and provides several application modules for trajectory planning, image registration, instrument auto-identification and real-time navigation. The system is compatible with the following pedicle screw system and C-arm systems.
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| Compatible Systems | Device Name | 510(k) Number |
|--------------------|--------------------------------|---------------|
| Pedicle screw | Wiltrom spinal fixation system | K172548 |
| C-arm | Siemens Arcadis Varic | K040066 |
| C-arm | GE OEC Fluorostar | K043076 |
| C-arm | Ziehm Imaging Ziehm Solo | K092438 |
#### 5.4. Intended use/Indications for use
The INTAI Surgery Navigation System is indicated for precise positioning of surgical instruments or spinal implants during general spinal surgery when reference to a rigid anatomical structure, such as the vertebra, can be identified relative to a patient's fluoroscopic or CT imagery. It is intended as a planning and intraoperative guidance system to enable open or percutaneous image guided surgery by means of registering intraoperative 2D fluoroscopic projections to pre-operative 3D CT imagery.
Example procedures include but are not limited to:
Posterior-approach spinal implant procedures, such as pedicle screw placement, within the lumbar region.
- 5.5. Substantial equivalence comparison
The subject device has the same intended use and technological characteristics as the predicate device. Below is a comparison of the indications for use and technological characteristics of subject device to the predicate device and an assessment of the equivalence of each characteristic. It is shown that technological differences in the subject device do not raise different questions of safety and effectiveness than the predicate device. Therefore, it is concluded that the subject device is substantially equivalent to the predicate device with respect to its indications for use and technological characteristics.
| | Subject Device | Predicate Device | Equivalence Assessment |
|---------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Device name | INTAI Surgery Navigation System | Medtronic StealthStation System | N/A |
| Submitter | INTAI Technology Co. | Medtronic Navigation, Inc. | N/A |
| 510(k) number | TBD | K133444 | N/A |
| Primary<br>product code | OLO | HAW | N/A |
| Secondary<br>product code | N/A | OLO | N/A |
| | Subject Device | Predicate Device | Equivalence Assessment |
| Indications for<br>use | The INTAI Surgery Navigation<br>System is indicated for precise<br>positioning of surgical<br>instruments or spinal implants<br>during general spinal surgery<br>when reference to a rigid<br>anatomical structure, such as the<br>vertebra, can be identified<br>relative to a patient's<br>fluoroscopic or CT imagery. It is<br>intended as a planning and<br>intraoperative guidance system<br>to enable open or percutaneous<br>image guided surgery by means<br>of registering intraoperative 2D<br>fluoroscopic projections to<br>pre-operative 3D CT imagery.<br>Example procedures include but<br>are not limited to:<br>Posterior-approach spinal<br>implant procedures, such as<br>pedicle screw placement, within<br>the lumbar region. | The StealthStation System is<br>intended as an aid for precisely<br>locating anatomical structures in<br>either open or percutaneous<br>procedures, The StealthStation<br>System is indicated for any<br>medical condition in which the<br>use of stereotactic surgery may<br>be appropriate, and where<br>reference to a rigid anatomical<br>structure, such as the skull, a<br>long bone, or vertebra, can be<br>identified relative to a CT or MR<br>based model, fluoroscopy<br>images, or digitized landmarks of<br>the anatomy. | Equivalent<br>The scope of indications for use<br>of subject device is entirely<br>contained within that of<br>predicate device. The subject<br>device does not have any new<br>indications for use. |
| Operating<br>principle | The subject device creates a<br>relative position between the<br>patient and 2D C-arm images by<br>means of capturing<br>intra-operative 2D C-arm images<br>of the patient. The relative<br>position between the patient and<br>3D CT images is established<br>through the registration of<br>intra-operative 2D C-arm images<br>to pre-operative 3D CT images.<br>Subsequently, the subject device<br>can continuously display the<br>relative position of a tracked<br>instrument to a representation of<br>the patient's anatomy. The<br>surgeon can utilize this<br>information as a guide to<br>perform either open or<br>percutaneous spine surgery. | The navigation system creates a<br>translation map between points<br>in the patient anatomy and the<br>corresponding points on<br>radiologic images of the patient.<br>Once this map is established<br>through a process called<br>registration), the software can<br>display the relative position of a<br>tracked instrument to a<br>representation of the patient's<br>anatomy.<br>During surgery, the system tracks<br>the position of specialized<br>surgical instruments in or on the<br>patient anatomy and<br>continuously updates the<br>instrument position on these<br>images either by optical tracking<br>or electromagnetic tracking. | Equivalent<br>Both subject device and<br>predicate device are intended to<br>establish the relative position<br>between the tracked instrument<br>and patient's anatomy. The<br>subject device utilizes the same<br>optical tracking system as the<br>predicate device. |
| Main system<br>components | Optical tracker<br>Navigation cart, including optical<br>tracker, medical panel PC and<br>articulating arms | Optical and electromagnetic<br>(AXIEM)<br>localization system<br>Staff cart (optical system),<br>including camera and articulating<br>arms, and surgeon cart, including<br>surgeon monitor and articulating<br>arms | Equivalent<br>The function of optical tracker,<br>i.e. optical tracking, is equivalent<br>to that of optical localization<br>system. The subject device does<br>not have electromagnetic<br>localization system.<br>Equivalent<br>The subject device integrates<br>optical tracker and medical panel<br>PC into a cart. The function of<br>navigation cart is equivalent to<br>that of staff cart and surgeon<br>cart. |
| | N/A | Keyboard and mouse | Equivalent |
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{6}------------------------------------------------
| | Subject Device | Predicate Device | Equivalence Assessment |
|-----------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Main system<br>components | No touch reader | N/A | Equivalent<br>No touch reader is used to<br>automatically identify the<br>instruments. User shall manually<br>identify the instrument when<br>using the predicate device. |
| Patient<br>tracking | Dynamic reference frame (DRF) | Dynamic referencing | Identical |
| Operating<br>system | Windows 7 | Debian Linux | Equivalent<br>The function of navigation<br>software is successfully verified<br>on Windows' platform, which<br>does not affect its operation. |
| Modes of<br>operation | Planning & Navigation Module<br>1. Procedure approach (next/last<br>buttons) software for guiding<br>surgical navigation<br>2. Display of 3D image and<br>multi-planar reconstruction<br>image<br>3. Localization of patient's<br>position by DRF<br>4. Anatomical images<br>"Instrument view" at different<br>depths from the viewpoint of<br>instrument tip<br>5. "Instrument navigation panel"<br>for trajectory planning | Planning & Navigation Module<br>1. Procedure guided software<br>(next/back buttons) with voice<br>prompt, instruction window<br>and task visualization<br>2. Advanced 3-D modeling<br>capabilities for multiple<br>models or plans<br>3. PatienTrak dynamic<br>referencing<br>4. User definable "Look-Ahead"<br>views and display setup<br>5. Display of the 3D accuracy<br>"Zone"<br>6. Linear measurement tools in<br>all planes for anatomical sizing<br>7. 3D guidance view with depth<br>display<br>8. Screen export as PC<br>compatible JPEG file on<br>CD-ROM | Equivalent<br>The subject device does not have<br>those modules incorporated in<br>the predicate device, i.e. module<br>5, 6 and 8. These modules<br>provide optional functions and<br>do not affect the overall<br>navigation procedure. |
| Registration<br>1. C-arm/CT image registration<br>2. Minimally invasive surgery for<br>lumbar spine | | Advanced Contour Registration<br>1. Registration is achieved by<br>dragging probe across<br>vertebral body<br>2. For use in cervical, thoracic<br>and lumbar spine<br>3. Enabling technology for<br>minimal access spine surgery | Equivalent<br>Both subject device and<br>predicate device need<br>registration to establish spatial<br>coordinate transformation. |
| Supported<br>image<br>modalities | CT | CT or MR | Equivalent<br>The subject device uses the same<br>CT image modality as the<br>predicate device. |
#### 5.6. Non-clinical testing
Verification and validation activities have been completed to provide sufficient assurance that the subject device meets the performance requirements under its indications for use conditions. Below is a summary of all performance tests carried out on the subject device. It is demonstrated that the subject device performs as safely and effectively as the predicate device.
{7}------------------------------------------------
| Test | Description |
|-------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Cleaning | Cleaning of those reusable accessories is validated in<br>accordance with AAMI TIR30:2011/(R)2016, ASTM F3293-18<br>and FDA guidance for the “Reprocessing medical devices in<br>health care settings: Validation methods and labeling” issued on<br>March 17, 2015. |
| Sterilization | Moist heat sterilization of those reusable accessories is<br>validated in accordance with ISO 17665-1:2006. |
| Repeated<br>Reprocessing | Reliability of those reusable instruments after repeated<br>reprocessing is validated throughout their use-life. |
| Biocompatibility | Biocompatibility of those accessories that come into contact<br>with patient is evaluated in accordance with FDA guidance for<br>the use of international standard ISO 10993-1, “Biological<br>evaluation of medical devices – Part 1: Evaluation and testing<br>within a risk management process” issued on June 16, 2016 and<br>ISO 10993-1:2009. |
| Software | Software is verified and validated in accordance with FDA<br>guidance for the content of premarket submissions for software<br>contained in medical devices issued on May 11, 2005 and IEC<br>62304:2006 + A1:2015. |
| Electrical Safety | Electrical safety of the system is complied with the<br>requirements of ANSI/AAMI ES60601-1:2005/(R)2012 and<br>A1:2012, C1:2009/(R)2012 and A2:2010/(R)2012. |
| Electromagnetic<br>Compatibility | Electromagnetic compatibility of the system is complied with<br>the requirements of IEC 60601-1-2:2014. |
| Usability | Usability of the system is validated in accordance with<br>ANSI/AAMI HE75:2009/(R)2013, IEC 62366-1:2015 and IEC<br>60601-1-6:2010 + A1:2013. |
| Accuracy | Positional accuracy of the system is evaluated in accordance<br>with ASTM F2554-10. |
| System<br>Performance<br>Validation | Clinical accuracy of the system is validated in cadaver against<br>the acceptance criteria of mean positional error $≤$ 3.0 mm and<br>mean trajectory angle error $≤$ 3.0 degrees. |
| Risk Assessment | The effectiveness of all risk control measures is verified in<br>accordance with ISO 14971:2007 |
{8}------------------------------------------------
| Test | Description |
|------------------------|----------------------------------------------------------------------------|
| Design<br>Verification | The design output fulfills all design input requirements. |
| User Needs | The system meets the needs of the end user under simulated use conditions. |
#### 5.7. Clinical testing
No clinical testing has been conducted.
#### 5.8. Conclusions
The results of all non-clinical tests demonstrate that the INTAI Surgery Navigation System performs as safely and effectively as the legally marketed predicate device. According to the comparison based on the requirements of 21 CFR 807.87 and the information provided herein, it is concluded that the subject device is substantially equivalent to the predicate device with respect to its indications for use and technological characteristics.
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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.
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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.
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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.
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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.