The FCT iStream system is indicated to acquire axial volumes of the whole body including the head. Images can be acquired in axial, helical, or dynamic modes. The FCT iStream system can also be used for interventional needle guidance. Volume datasets acquired by an FCT iStream system can be post-processed in the FCT iStream system to provide additional information. Post-processing capabilities of the FCT iStream software include multi-planar reconstruction (MPR), and volume rendering. Volume datasets acquired by an FCT iStream system can be transferred to external devices via a DICOM standard interface. The Low Dose CT Lung Cancer Screening Option for the FCT iStream system is indicated for using low dose CT for lung cancer screening. The screening must be conducted with the established program criteria and protocols that have been approved and published by a governmental body, a professional medical society, and/or FUJIFILM Healthcare Corporation.
Device Story
Multi-slice CT system; acquires X-ray data via continuous fan-beam source and solid-state detector (888 channels x 64 rows); reconstructs cross-sectional images via high-speed sub-system. Operated by clinicians in clinical settings. Includes post-processing (MPR, volume rendering) and DICOM transfer. Features include IntelliODM (X-ray exposure reduction for head) and iTilt (MPR-based tilt simulation). Output displayed on Windows-based workstation for diagnostic review and interventional guidance. Benefits include diagnostic imaging and screening capabilities with dose management features.
Clinical Evidence
Bench testing only. No clinical data provided. Performance verified against IEC 61223-3-5 standards for dose profile, spatial resolution, noise, CT number uniformity, and tomographic section thickness. Compliance with 21 CFR 1020.33(c)/(g) confirmed.
Indicated for whole-body CT imaging, including head, in axial, helical, or dynamic modes; interventional needle guidance; and low-dose lung cancer screening in accordance with established clinical protocols.
Regulatory Classification
Identification
A computed tomography x-ray system is a diagnostic x-ray system intended to produce cross-sectional images of the body by computer reconstruction of x-ray transmission data from the same axial plane taken at different angles. This generic type of device may include signal analysis and display equipment, patient and equipment supports, component parts, and accessories.
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Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). The logo consists of two parts: the Department of Health & Human Services logo on the left and the FDA logo on the right. The FDA logo is a blue square with the letters "FDA" in white, followed by the words "U.S. FOOD & DRUG ADMINISTRATION" in blue.
April 26, 2024
FUJIFILM Healthcare Americas Corporation % Chaitrali Kulkarni Sr. Regulatory Affairs Specialist 81 Hartwell Avenue Suite 300 LEXINGTON, MA 02421
### Re: K233583
Trade/Device Name: FCT iSTREAM Phase 1 Regulation Number: 21 CFR 892.1750 Regulation Name: Computed Tomography X-Ray System Regulatory Class: Class II Product Code: JAK Dated: April 1, 2024 Received: April 1, 2024
#### Dear Chaitrali Kulkarni:
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 (the 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 available 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.
Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device" (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).
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Your device is also subject to, among other requirements, the Quality System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30, Design controls; 21 CFR 820.90, Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the QS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).
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 of medical device-related adverse events) (21 CFR Part 803) for devices or postmarketing safety reporting (21 CFR Part 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 (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 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,
Lu Jiang
Lu Jiang, Ph.D. Assistant Director Diagnostic X-Ray Systems Team DHT8B: Division of Radiological Imaging Devices and Electronic Products OHT8: Office of Radiological Health Office of Product Evaluation and Quality Center for Devices and Radiological Health
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# Indications for Use
510(k) Number (if known) K233583
Device Name FCT iStream Phase 1
#### Indications for Use (Describe)
The FCT iStream system is indicated to acquire axial volumes of the whole body including the head. Images can be acquired in axial, helical, or dynamic modes. The FCT iStream system can also be used for interventional needle guidance. Volume datasets acquired by an FCT iStream system can be post-processed in the FCT iStream system to provide additional information. Post-processing capabilities of the FCT iStream software include multi-planar reconstruction (MPR), and volume rendering. Volume datasets acquired by an FCT iStream system can be transferred to external devices via a DICOM standard interface.
The Low Dose CT Lung Cancer Screening Option for the FCT iStream system is indicated for using low dose CT for lung cancer screening. The screening must be conducted with the established program criteria and protocols that have been approved and published by a governmental body, a professional medical society, and/or FUJIFILM Healthcare Corporation.
| Type of Use (Select one or both, as applicable) | |
|------------------------------------------------------------------------------------------------|---------------------------------------------|
| <span style="text-decoration: overline;">X</span> Prescription Use (Part 21 CFR 801 Subpart D) | Over-The-Counter Use (21 CFR 801 Subpart C) |
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# 510(k) Summary
## Submitter Information
| Submitter: | FUJIFILM Healthcare Corporation<br>2-1, Shintoyofuta, Kashiwa-Shi,<br>Chiba, JP 277-0804 |
|-------------------|------------------------------------------------------------------------------------------|
| Contact: | Chaitrali Kulkarni, Senior Regulatory Affairs Specialist |
| Telephone number: | (704)-517-4886 |
| E-mail: | chaitrali.kulkarni@fujifilm.com |
| Date: | January 22, 2024 |
# Subject Device Name
| Trade/Proprietary Name: | FCT iStream Phase 1 | |
|-------------------------|------------------------------------------|--|
| Regulation Number: | 21 CFR 892.1750 | |
| Regulation Name: | Computed tomography x-ray system | |
| Product Code | JAK, System, X-Ray, Tomography, Computed | |
| Class | II | |
| Panel | Radiology | |
# Predicate Device Name
| Predicate Device(s): | SCENARIA View 4.2 (K231574) |
|----------------------|------------------------------------------|
| Regulation Number: | 21 CFR 892.1750 |
| Regulation Name: | Computed tomography x-ray system |
| Product Code | JAK, System, X-Ray, Tomography, Computed |
| Class | II |
| Panel | Radiology |
# Indications for Use
The FCT iStream system is indicated to acquire axial volumes of the whole body including the head. Images can be acquired in axial, helical, or dynamic modes. The FCT iStream system can also be used for interventional needle guidance. Volume datasets acquired by an FCT iStream system can be post-processed in the FCT iStream system to provide additional information. Post-processing capabilities of the FCT iStream software include multi-planar reconstruction (MPR), and volume rendering, Volume datasets acquired by an FCT iStream system can be transferred to external devices via a DICOM standard interface.
The Low Dose CT Lung Cancer Screening Option for the FCT iStream system is indicated for using low dose CT for lung cancer screening must be conducted with the established program criteria and protocols that have been approved and published by a governmental body, a professional medical society, and/or FUJIFILM Healthcare Corporation.
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# Device Description
#### Function
The FCT iStream is a multi-slice computed tomography system that uses x-ray data to produce cross-sectional images of the body at various angles.
#### Scientific Concepts
The FCT iStream X-ray source is designed to enable the continuous emission of fan-beam Xrays, and the solid state detector unit is positioned opposite the X-ray source to measure the intensity distribution of the X-rays. The total number of detector channels is 888 channels x 64 rows, and all of the rows are used as 64-slice portions. Note that the magnification factor of the X-ray system is 1.77 and that the width of the opening of each channel in the center of the measuring area is 0.6 mm. These factors, along with the focal spot size, affect spatial resolution.
The collected data is then reconstructed into cross-sectional images by a high-speed reconstruction sub-system. The images are displayed on a Computer Workstation, stored, printed, and archived as required. The workstation is based on current PC technology using the Windows™ operating system.
#### Physical and Performance Characteristics
The FCT iStream system consists of a Gantry, Operator's Workstation, Patient Table, High-Frequency X-ray Generator, and accessories. The system performance is similar to the predicate device.
#### Performance Comparison
Evaluations were conducted for IntelliODM, iTilt and for features that were removed from the subject device to the predicate device (see table below).
#### Removed Features
| 1 | Gantry tilt mechanism |
|---|--------------------------------------------------------------|
| 2 | Shuttle Scan and Helical Shuttle Scan |
| 3 | Adaptive Filter function (a part of Image analysis function) |
| 4 | Segmentation function (a part of Image analysis function) |
| 5 | Retouch function (a part of Image analysis function) |
| 6 | Image Analysis on external PC |
| 7 | Motion corrected reconstruction (Cardio Still Shot) |
| 8 | Assist in patient positioning using camera (AutoPositioning) |
The evaluation results confirm the performance characteristics of FCT iStream are comparable to the predicate device and support our conclusion that the subject system is substantially equivalent.
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Image /page/5/Picture/0 description: The image shows the Fujifilm logo. The logo is in black text, with the letters "FUJIFILM" in a bold, sans-serif font. There is a red square above the "I" in Fujifilm. The logo is simple and modern.
#### Value from Innovation Device Technological Characteristics
A summary of the differences is listed in the following table.
| Systems | FCT iStream Phase 1<br>Subject Device | SCENARIA View 4.2 (K231574)<br>Predicate Device | ITEM | OVERALL RATIONALE ANALYSIS |
|--------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------|--------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Physical characteristics | Image: FCT iStream Phase 1 | Image: SCENARIA View 4.2 | Gantry | Different specifications do not constitute a new intended use. There are no significant changes<br>in technological characteristics. The gantry and detector design were based on the same<br>technology as the predicate device. |
| Gantry | The specifications of the device are different, the minimum scan time of this device is not as<br>short as the predicate device. This change does not affect overall technological characteristics<br>compared to the predicate device.<br>This gantry does not have a tilt mechanism compared to the predicate device. If it is necessary<br>to take a tilted image, it will use the iTilt function to create an equivalent MPR image. So it will<br>not affect the effectiveness of the system. Also, this does not affect the safety of this device<br>compared to the predicate device.<br>The specifications of the device are different, the size and the weight of the gantry of this<br>device are different from the predicate device. However, as the device weighs less and has a<br>smaller footprint than the predicate device, we judge that these changes do not impact the<br>intended use.<br>The monitor in the center of the gantry is for display only. Since the information required for the<br>intended use of the device is displayed. | | Detector | Different specifications do not constitute a new intended use. There are no significant changes<br>in technological characteristics. The gantry and detector design were based on the same<br>technology as the predicate device. |
| Detector | There are no differences between the two systems. | | X-ray Tube | These subsystems have the same level of general effectiveness as the predicate device based<br>on the performance test results. For safety, these items are controlled and tested according to<br>same regulations and/or standards as the predicate device. |
| X-ray Tube | The X-ray tube of this device is different from the predicate device only in heat capacity. The X-ray<br>tube focal spot and general performance characteristics are the same as the predicate device. | | X-ray Generator | This item conforms to IEC 60601-2-44:2009+A1:2012+A2:2016 requirements for CT systems<br>and has the same level of general effectiveness as the predicate device based on the<br>performance test results. For safety, this item is controlled and tested according to same<br>regulations and/or standards as the predicate device. |
| X-ray Generator | The specifications of the device are different, to match the performance specifications of this<br>device and conforms to IEC 60601-2-44:2009+A1:2012+A2:2016 requirements for CT systems.<br>The kVp and mA output of the device is comparable to the predicate device. | | Patient Table | Different specifications do not constitute a new intended use. There are no significant changes<br>in technological characteristics. The table travel and weight capacity characteristics are<br>generally equivalent to the predicate device. For safety, this item is controlled and tested<br>according to same regulations and/or standards as the predicate device. |
| Patient Table | The specifications of the device are different, the size and the weight of the table of this device are<br>different from the predicate device. However, as the device weighs less and has a smaller<br>footprint than the predicate device, we judge that these changes do not impact the intended use. | | Operator's console | Operator's console has a slight difference in capacity of the predicate device, but the maximum<br>number of storage images remains the same. For safety, this item is controlled and tested<br>according to same regulations and/or standards as the predicate device. |
| Operator's console | Operator's console has a slight difference in SSD capacity of the predicate device, but the<br>maximum number of storage images remains the same. | | Scanning, Reconstruction | Different specifications do not constitute a new intended use. There are no significant changes<br>in technological characteristics. The design criteria for these elements were set to allow<br>comparable performance to the predicate device. The performance of these sub-systems does<br>not substantially affect the effectivity and safety as compared to the predicate device. |
| Scanning, Reconstruction | The iTilt function uses MPR technology to create a tilt image immediately after scanning. This<br>function uses the same technology as the existing MPR function, and does not affect overall<br>technological characteristics compared to the predicate device. | | Performance | There are no substantial differences in this category based on the performance test results. |
| Performance | There is a difference in the Low-contrast mm at % ≤ 4 rads. | | Dose Controls | Different specifications do not constitute a new intended use. There are no significant changes<br>in technological characteristics. For safety, these items are controlled and tested according to<br>same regulations and/or standards as the predicate device. |
| Dose Controls | While this device is not equipped with a small bow-tie filter, the normal bow-tie filter provides<br>generally equivalent performance to the predicate device and does not substantially impact the<br>effectivity and safety of this device.<br>Intelli IPV is no change in the algorithm, but the heat capacity is reduced from 7.5MHU to 6MHU,<br>so the effect will be different. However, this does not impact the effectivity and safety of this device<br>as compared to the predicate device. | | Features | Different specifications do not constitute a new intended use. There are no significant changes<br>in technological characteristics and the feature set of the device is generally equivalent to the<br>predicate device. |
| Features | IntelliODM is a feature that uses IntelliEC technology to reduce X-ray exposure from the patient's<br>head, reducing direct radiation dose to sensitive organs. | | | |
{6}------------------------------------------------
**Value from Innovation**
Therefore, based on a thorough analysis and comparison of subject device and the predicate device, the technological characteristics do not impact safety and effectiveness.
# Substantial Equivalence
A summary decision was based on a thorough analysis and comparison of the functions, scientific concepts, physical and performance characteristics, performance comparison and technoloqical characteristics.
Therefore, based on a thorough analysis and comparison of the functions, scientific concepts, physical and performance characteristics, performance comparison and technological characteristics, the proposed FCT iStream Phase1 is considered substantially equivalent to the currently marketed predicate device (SCENARIA View 4.2 (K231574)) in terms of design features, fundamental scientific technology, indications for use, and safety and effectiveness.
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Image /page/7/Picture/0 description: The image shows the Fujifilm logo. The logo is in black, except for a small red square with a white diagonal line in the middle. The text "FUJIFILM" is written in a bold, sans-serif font.
**Value from Innovation**
# Summary of Non-Clinical Testing
This device complies with all applicable requirements for Dose Profile, Noise, Mean CT number and Uniformity, Spatial Resolution, Tomographic Section Thickness and Sensitivity Profile, Tomographic Plane Location, and CT dose index.
In addition. the FCT iStream Phase 1 is in conformance with the applicable parts of the following standards:
- AAMI ANSI ES60601-1:2005/(R) 2012 and A1:2012, C1:2009/(R)2012 and . A2:2010/(R)2012
Medical electrical equipment - Part 1: General requirements for basic safety and essential performance (IEC 60601-1:2005, MOD)
- IEC 60601-1-2 Edition 4.0 .
Medical electrical equipment - Part 1-2: General requirements for basic safety and essential performance - Collateral standard: Electromagnetic compatibility - Requirements and tests
- IEC 60601-1-3 Edition 2.1 . Medical electrical equipment - Part 1-3: General requirements for basic safety and essential performance - Collateral Standard: Radiation protection in diagnostic X-ray equipment
- . IEC 60601-2-44 Edition 3.2
Medical electrical equipment Part 2-44: particular requirements for the basic safety and essential performance of x-ray equipment for computed tomography.
- . IEC 62304 Edition 1.1
Medical device software - Software life cycle processes
- . NEMA XR 25 Computed Tomography Dose Check
# Summary of Performance Testing
| Testing Type | Rationale Analysis |
|--------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Performance Testing - Bench | We generated bench data based on IEC61223-3-5. We confirmed that the items (Dose<br>Profile, Spatial Resolution, Noise, Mean CT number and Uniformity, Tomographic Section<br>Thickness and Sensitivity Profile, Tomographic Plane Location, CT dose index) which we<br>tested met the conditions of 21 CFR 1020.33(c) or (g). This shows that FCT iStream Phase 1<br>has equivalent basic performance as the predicate device, SCENARIA View 4.2. |
| Performance Testing - Clinical | N/A |
# Conclusions
FUJIFILM believes that, based on the information included in the submission, FCT iStream Phase 1 subject device is substantially equivalent with respect to hardware, base elements of the software, safety, effectiveness, and functionality to the SCENARIA View 4.2 (K231574).
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Part 1 — Search, results, and everyday workflows 16 min
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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.
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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).
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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.
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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.
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Reading rule for every project: how many summaries do you read in full?
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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.
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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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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.
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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.