K211901 · MolecuLight, Inc. · QJF · Jul 21, 2021 · General, Plastic Surgery
Device Facts
Record ID
K211901
Device Name
MolecuLightDX
Applicant
MolecuLight, Inc.
Product Code
QJF · General, Plastic Surgery
Decision Date
Jul 21, 2021
Decision
SESE
Submission Type
Special
Regulation
21 CFR 878.4550
Device Class
Class 2
Indications for Use
Intended for general surgery and dermatological use as an adjunct tool that uses autofluorescence to detect tissues or structures. This device is not intended to provide a diagnosis.
Device Story
Handheld imaging tool; uses 405nm LED excitation light to induce autofluorescence in wounds; captures standard and fluorescence images via 3-camera system; displays images on 5.5" AMOLED screen. Operated by clinicians at point of care. Provides visual feedback on bacterial presence (>10^4 CFU/g) when combined with clinical assessment; aids in wound management decisions. Benefits include improved identification of high bacterial loads compared to clinical signs alone. Features stickerless wound measurement functionality.
Clinical Evidence
No new clinical data provided. Substantial equivalence supported by non-clinical bench testing, including software verification/validation, system V&V, accuracy/variability testing of wound measurement, and compliance with electrical/mechanical/thermal safety and EMC standards.
Technological Characteristics
Handheld imaging device; 405nm LED excitation; 3-camera system; 8MP resolution; 5.5" AMOLED display; Android 9.1 OS. Non-patient contacting (8-20cm working distance). Complies with IEC 60601-1, IEC 60601-1-2, IEC 60601-2-57, and IEC 62471. No sterile components.
Indications for Use
Indicated for adult patients with skin wounds. Used by clinicians at the point of care to view/record wound images, measure wound size, and view/record fluorescence emitted from wounds under excitation light. Used as an adjunct to clinical signs/symptoms to identify wounds with bacterial loads >10^4 CFU/g. Not for ruling out bacteria. Does not diagnose or treat wounds.
Regulatory Classification
Identification
An autofluorescence detection device for general surgery and dermatological use is an adjunct tool that uses autofluorescence to detect tissues or structures. This device is not intended to provide a diagnosis.
Special Controls
In combination with the general controls of the FD&C Act, the autofluorescence detection device for general surgery and dermatological use is subject to the following special controls:
*Classification.* Class II (special controls). The special controls for this device are:(1) In vivo testing under anticipated conditions of use must characterize the ability of the device to detect autofluorescent signals from tissues or structures consistent with the indications for use.
(2) The patient-contacting components of the device must be demonstrated to be biocompatible.
(3) Performance testing must demonstrate the electromagnetic compatibility and electrical, mechanical, and thermal safety of the device.
(4) Software verification, validation, and hazard analysis must be performed.
(5) Performance testing must demonstrate the sterility of patient-contacting components of the device.
(6) Performance testing must support the shelf life of device components provided sterile by demonstrating continued sterility and package integrity over the labeled shelf life.
(7) Performance testing must demonstrate laser and light safety for eye, tissue, and skin.
(8) Labeling must include the following:
(i) Instructions for use;
(ii) The detection performance characteristics of the device when used as intended; and
(iii) A shelf life for any sterile components.
{0}------------------------------------------------
Image /page/0/Picture/0 description: The image contains 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 features the letters "FDA" in a blue square, followed by the words "U.S. FOOD & DRUG ADMINISTRATION" in blue text.
July 21, 2021
MolecuLight Inc. Jordan John Director, Quality Assurance & Regulatory Affairs Suite 700, 425 University Avenue Toronto, Ontario M5G 1T6 Canada
Re: K211901
Trade/Device Name: MolecuLightDX Regulation Number: 21 CFR 878.4550 Regulation Name: Autofluorescence Detection Device For General Surgery And Dermatological Use Regulatory Class: Class II Product Code: QJF, FXN Dated: June 21, 2021 Received: June 21, 2021
Dear Jordan John:
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.
{1}------------------------------------------------
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 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 (QS) 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.
Purva Pandya Assistant Director DHT4A: Division of General Surgery Devices OHT4: Office of Surgical and Infection Control Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
{2}------------------------------------------------
## Indications for Use
510(k) Number (if known) K211901
Device Name
MolecuLightDX
Indications for Use (Describe)
The MolecuLightDX is a handheld imaging tool that allows clinicians diagnosing and treating skin wounds, at the point of care, to
- (i) View and digitally record images of a wound,
- (ii) Measure and digitally record the size of a wound, and
- (iii) View and digitally record images of fluorescence emitted from a wound when exposed to an excitation light.
The fluorescence image, when used in combination with clinical signs and symptoms, has been shown to increase the likelihood that clinicians can identify wounds containing bacterial loads >104 CFU per gram as compared to examination of clinical signs and symptoms alone. The MolecuLightDX device should not be used to rule-out the presence of bacteria in a wound.
The MolecuLightDX does not diagnose or treat skin wounds.
| Type of Use (Select one or both, as applicable) |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| <span style="white-space: nowrap;"> <span style="font-size: 16px;">☑</span> Prescription Use (Part 21 CFR 801 Subpart D) </span> <span style="white-space: nowrap;"> <span style="font-size: 16px;">□</span> Over-The-Counter Use (21 CFR 801 Subpart C) </span> |
#### CONTINUE ON A SEPARATE PAGE IF NEEDED.
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 maintain 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."
{3}------------------------------------------------
## K211901
## 510(k) SUMMARY
#### MolecuLightDX
#### Submitter's Name, Address, Telephone Number, Contact Person and Date Prepared
MolecuLight Inc. Suite 700, 425 University Avenue Toronto, ON, Canada M5G 1T6 Phone: 416-542-5522 Contact Person: Jordan John
Date Prepared: July 19, 2021
#### Name of Device
MolecuLightDX
#### Device Classification and Product Code
Autofluorescence detection device, 21 CFR 878.4550, Class II, QJF Tape, Camera, Surgical, 21 CFR 878.4160, Class I, FXN
#### Predicate Devices
MolecuLight i:X K191371
#### Indications for Use
The MolecuLightDX is a handheld imaging tool that allows clinicians diagnosing and treating skin wounds, at the point of care, to
View and digitally record images of a wound, (i)
Measure and digitally record the size of a wound, and (ii)
(iii) View and digitally record images of fluorescence emitted from a wound when exposed to an excitation light.
The fluorescence image, when used in combination with clinical signs and symptoms, has been shown to increase the likelihood that clinicians can identify wounds containing bacterial loads >104 CFU per gram as compared to examination of clinical signs and symptoms alone. The MolecuLightDX device should not be used to rule-out the presence of bacteria in a wound.
The MolecuLightDX does not diagnose or treat skin wounds.
{4}------------------------------------------------
## Device Description
The MolecuLightDX Imaging Device is a handheld medical imaging device comprised of a high-resolution color AMOLED display and touch-sensitive screen with integrated optical and microelectronic components. MolecuLightDX uses its patented technology to enable real-time standard digital imaging and fluorescence imaging in wounds and surrounding healthy skin of patients as well as wound area measurements.
## Non-Clinical Testing
Nonclinical testing included the following on the subject device:
- Standards Compliance Testing 1)
- 2) Software Verification and Validation
- 3) System Verification and Validation
- 4) Accuracy and Inter/Intra Reader Variability Testing of Wound Measurement Function
- ર) Packaging and Transport validation
## Compliance with Special Controls of 21 CFR 878.4550
The device complies with the following applicable special controls as per 21 CFR 878.4550 as follows:
- Patient Contact Materials have been assessed to be biocompatible. 1.
- 2. Performance testing demonstrated the electromagnetic compatibility and electrical, mechanical and thermal safety of the device.
- Software verification and validation has been completed. 3.
- ব LED light safety testing has been demonstrated according to IEC 60601-2-57:2011.
- Labeling is provided that includes instructions for use as well as the performance of the device when 5. used as intended.
Note: There are no components labeled as sterile included with this product.
## Standards Compliance
MolecuLightDX has been tested to comply with the following FDA recognized standards:
- . Safety Testing per IEC 60601-1:2005+A1:2012& US National Differences per ANSI/AAMI ES 60601-1:2005/A1:2012
- EMC Testing per IEC 60601-1-2:2014 4th Edition ●
- LED Testing per IEC 60601-2-57:2011 and IEC 62471:2006 ●
## Software Verification and Validation Testing
Software verification and validation testing was conducted, and documentation was provided as recommended by FDA's Guidance for Industry and FDA Staff, "Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices." The software for this device was considered as a "moderate" level of concern.
## Comparison of Intended Use, Indications for Use and Technological Characteristics with the Predicate Device
{5}------------------------------------------------
| | MolecuLightDX<br>SUBJECT DEVICE | MolecuLight i:X<br>PREDICATE DEVICE |
|--------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Device Name | MolecuLightDX | MolecuLight i:X |
| Manufacturer | MolecuLight Inc. | MolecuLight Inc. |
| 510(k) Number | - | K191371 |
| Regulatory Class | Class II | Class II |
| Regulation<br>Number | QJF | QJF |
| Product<br>Classification | 21 CFR 878.4550 | 21 CFR 878.4550 |
| Classification<br>Name | Autofluorescence detection device for<br>general surgery and dermatological use | Autofluorescence detection device for<br>general surgery and dermatological use |
| Intended Use | Intended for general surgery and<br>dermatological use as an adjunct tool that<br>uses autofluorescence to detect tissues or<br>structures. This device is not intended to<br>provide a diagnosis. | Intended for general surgery and<br>dermatological use as an adjunct tool<br>that uses autofluorescence to detect<br>tissues or structures. This device is not<br>intended to provide a diagnosis. |
| Indications for<br>Use | The MolecuLightDX is a handheld imaging<br>tool that allows clinicians diagnosing and<br>treating skin wounds, at the point of care, to | The MolecuLight i:X is a handheld<br>imaging tool that allows clinicians<br>diagnosing and treating skin wounds, at<br>the point of care, to |
| | i) View and digitally record images of a<br>wound,<br>ii) Measure and digitally record the size of<br>a wound, and<br>iii) View and digitally record images of<br>fluorescence emitted from a wound when<br>exposed to an excitation light. | i) View and digitally record images of<br>a wound,<br>ii) Measure and digitally record the<br>size of a wound, and<br>iii) View and digitally record images<br>of fluorescence emitted from a wound<br>when exposed to an excitation light. |
| | The fluorescence image, when used in<br>combination with clinical signs and<br>symptoms, has been shown to increase the<br>likelihood that clinicians can identify<br>wounds containing bacterial loads >104<br>CFU per gram as compared to examination<br>of clinical signs and symptoms alone. The<br>MolecuLightDX device should not be used<br>to rule-out the presence of bacteria in a<br>wound.<br>The MolecuLightDX does not diagnose or<br>treat skin wounds. | The fluorescence image, when used in<br>combination with clinical signs and<br>symptoms, has been shown to increase<br>the likelihood that clinicians can identify<br>wounds containing bacterial loads >104<br>CFU per gram as compared to<br>examination of clinical signs and<br>symptoms alone. The MolecuLight i:X<br>device should not be used to rule-out the<br>presence of bacteria in a wound. |
| | | The MolecuLight i:X does not diagnose<br>or treat skin wounds. |
| Target Organ | Wounds | Wounds |
| | MolecuLightDX<br>SUBJECT DEVICE | MolecuLight i:X<br>PREDICATE DEVICE |
| Patient<br>Population | Adult Patients | Adult Patients |
| Operating Modes | Standard and fluorescence imaging, video<br>and image capture | Standard and fluorescence imaging, video and image capture |
| Excitation Light | 405nm light emitted from light emitting<br>diodes (LEDs) | 405nm light emitted from light emitting<br>diodes (LEDs) |
| Laser Power<br>Density | N/A | N/A |
| Infrared LED | N/A | N/A |
| White LED | N/A | N/A |
| Emission<br>Wavelength | 500-545nm and 600-665nm | 500-545nm and 600-665nm |
| Contrast Agent | Not required - autofluorescent target | Not required - autofluorescent target |
| Infrared Laser<br>Distance Finder<br>Wavelength | 940nm | 850nm |
| Infrared Laser<br>Distance Finder<br>Peak Power Output | 17mW | 14mW |
| Working<br>Distance | 8 – 12 cm (Fluorescence and Standard<br>Imaging)<br>8 – 20 cm (Measurement Mode) | 8-12cm (All imaging modes) |
| Torch | Yes | No |
| Optical head | 3 Camera System | 1 Camera |
| Resolution (focal<br>plane) | 8 megapixels | 5 megapixels |
| Magnification | N/A | N/A |
| Maximum Frame<br>Rate | 30 images/sec | 30 images/sec |
| Camera Bit<br>Depth | 8 bits | 8 bits |
| Image Size<br>(Pixels) | 3264 x 2448 pixels | 1135 x 640 pixels |
| Image Format | JPEG | JPEG |
| Video Format | MOV | MOV |
| Software<br>Operating System<br>(OS) | Android 9.1 | Apple iOS 9.3.5 |
| Compatibility | | |
| Measurement<br>Functionality | Stickerless Wound Measurement: Wound<br>length, width, and area measurements | Wound length, width, and area<br>measurements |
| Shelf-Life | 2 Years | 2 Years |
| Power Supply | Battery and wall | Battery and wall |
| Display | 5.5" AMOLED | 4" LCD |
| | MolecuLightDX<br>SUBJECT DEVICE | MolecuLight i:X<br>PREDICATE DEVICE |
| Patient<br>Contacting<br>Materials | Non-patient contacting device (held 8-20cm from skin) | Non-patient contacting device (held 8-12cm from skin) |
| Sterility | Used non-sterile | Used non-sterile |
| Electrical Safety | Compliance to IEC 60601-1 | Compliance to IEC 60601-1 |
| Mechanical safety | Compliance to IEC 60601-1 | Compliance to IEC 60601-1 |
| Chemical Safety | No chemical delivered or used as part of the system | No chemical delivered or used as part of the system |
| Standards with<br>which the Device<br>complies | IEC 60601-1<br>IEC 60601-1-2<br>IEC 60601-2-57<br>IEC 62471 | IEC 60601-1<br>IEC 60601-1-2<br>IEC 60601-2-57<br>IEC 62471 |
# Table 1: Comparison of Technological Characteristics for Fluorescence Imaging
{6}------------------------------------------------
{7}------------------------------------------------
## Conclusion
The performance tsting conducted on the MolecuLightDX demonstrates that the device can be used safely and effectively for the indications for use stated above. The MolecuLightDX's technological characteristics are similar to the technological characteristics of the predicate device (K191371) and does not raise new types of questions regarding safety and technology. The proposed MolecuLightDX is considered to be substantially equivalent to the MolecuLight i:X predicate device (K191371).
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
Learn the FDA Browser
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.