K223893 · Light Tree Ventures Europe B.V. · OHS · May 16, 2023 · General, Plastic Surgery
Device Facts
Record ID
K223893
Device Name
Infrared Heat (Model: E0221)
Applicant
Light Tree Ventures Europe B.V.
Product Code
OHS · General, Plastic Surgery
Decision Date
May 16, 2023
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 878.4810
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Infrared Heat (Model: E0221) is intended to emit energy in the red and infrared spectrum for use in the treatment of full face wrinkles.
Device Story
Infrared Heat (Model: E0221) is an over-the-counter LED device for treating full face wrinkles. Device consists of a pad, adjustable strap, USB charging cord, and goggles. Emits red (630nm) and infrared (830nm) light via 60 total LEDs (30 per wavelength). User wears pad on face; device operates via timer-controlled software with automatic 10-minute shut-off. Powered by 3.7V lithium battery. Intended for home use by patients. Output energy (30 mW/cm²) and dose (18J/cm²) are designed to stimulate skin; safety is managed by adherence to photobiological and electrical safety standards.
Clinical Evidence
No clinical data. Substantial equivalence supported by bench testing, including electrical safety (IEC 60601-1), electromagnetic compatibility (IEC 60601-1-2), photobiological safety (IEC 62471), and biocompatibility (ISO 10993-5, -10, -23).
Indicated for the treatment of full face wrinkles in adult patients. Over-the-counter use.
Regulatory Classification
Identification
(1) A carbon dioxide laser for use in general surgery and in dermatology is a laser device intended to cut, destroy, or remove tissue by light energy emitted by carbon dioxide.(2) An argon laser for use in dermatology is a laser device intended to destroy or coagulate tissue by light energy emitted by argon.
{0}------------------------------------------------
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 in blue and includes the letters "FDA" followed by the words "U.S. FOOD & DRUG ADMINISTRATION" in a smaller font.
May 16, 2023
Light Tree Ventures Europe B.V. Alain Dijkstra Manager Laan van Ypenburg 108, 2497 GC, The Hague, The Netherlands Hague, Netherlands
Re: K223893
Trade/Device Name: Infrared Heat (Model: E0221) Regulation Number: 21 CFR 878.4810 Regulation Name: Laser Surgical Instrument For Use In General And Plastic Surgery And In Dermatology Regulatory Class: Class II Product Code: OHS Dated: February 15, 2023 Received: February 15, 2023
Dear Alain Dijkstra:
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
{1}------------------------------------------------
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 medical devices and radiation-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,
# Jianting Wang -S
Jianting Wang Acting Assistant Director DHT4A: Division of General Surgery Devices OHT4: Office of Surgical and Infection Control Devices Office of Product Evaluation and Ouality Center for Devices and Radiological Health
Enclosure
{2}------------------------------------------------
# Indications for Use
510(k) Number (if known) K223893
Device Name Infrared Heat, model: E0221
#### Indications for Use (Describe)
The Infrared Heat (Model: E0221) is intended to emit energy in the red and infrared spectrum for use in the treatment of full face wrinkles.
| Type of Use (Select one or both, as applicable) |
|-------------------------------------------------|
|-------------------------------------------------|
| <div style="display:flex; align-items:center;"><input type="checkbox"/> Prescription Use (Part 21 CFR 801 Subpart D)</div> | <div style="display:flex; align-items:center;"><input checked="" type="checkbox"/> Over-The-Counter Use (21 CFR 801 Subpart C)</div> |
|----------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------|
|----------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------|
# 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}------------------------------------------------
#### 510(k) Summary of K223893
This summary of 510(k) safety and effectiveness information is being submitted in accordance with the requirement of 21 CFR 807.92.
#### 1. Submitter's Information
Sponsor Name: Light Tree Ventures Europe B.V. Establishment Registration Number: 3017422691 Address: Laan van Ypenburg 108, 2497 GC, The Hague, The Netherlands Contact Person (including title): Alain Dijkstra (Manager) Tel: +86-135-10378748 Fax: +86-755-25024651 E-mail: regulation@kaiyanmedical.com
#### Application Correspondent:
Contact Person: Alain Dijkstra Company: Light Tree Ventures Europe B.V. Address: Laan van Ypenburg 108, 2497 GC, The Hague, The Netherlands Tel: +86 755 82129361 Fax: +86 755 25024651 Email: regulation@kaiyanmedical.com
#### Manufacturer
Shenzhen Kaiyan Medical Equipment Co., Ltd Add: Building#3 and Building#5, 40th of Fuxin Street, Huaide Community Fuyong Town, Baoan District, Shenzhen, Guangdong 518103, China
#### Distributor
Company: Smart Recovery Technologies LLC Add: 132A Veterans Lane-451, Doylestown, PA 18901, USA
#### 2. Subiect Device Information
Trade Name: Infrared Heat, model: E0221 Classification Name: Laser surgical instrument for use in general and plastic surgery and in dermatology Review Panel: General & Plastic Surgerv Product Code: OHS Regulation Number: 21 CFR 890.5500, 21 CFR 878.4810 Regulation Class: II
#### 3. Predicate Device Information
Predicate Device (K171323) Sponsor: BioPhotas, Inc. Trade Name: BioPhotas Celluma3 Classification Name: Laser surgical instrument for use in general and plastic surgery and in dermatology Review Panel: General & Plastic Surgery Product Code: OHS Regulation Number: 21 CFR 878.4810
{4}------------------------------------------------
Regulation Class: II
#### Predicate Device (K201107)
Sponsor: GTG Wellness Co., Ltd. Trade Name: Opera Lebody Classification Name: Laser surgical instrument for use in general and plastic surgery and in dermatology Review Panel: General & Plastic Surgery Product Code: OHS Regulation Number: 21 CFR 878.4810 Regulation Class: II
### 4. Device Description
The Infrared Heat, model: E0221, is an over-the-counter light emitting diode (LED) device that emits 630nm and 830nm light to treat wrinkles. The device uses three types of LEDs and has two modes to reach those two functions. The user can control the treatment time or automatically shut it off within a set time.
The Infrared Heat components include the main unit device (a pad), an adjustable strap, a USB charging cord, goggles and a user manual.
The user wears the device in the area which needs to treat, and the device will shut down automatically a 10-minute after finishing treatment.
#### 5. Intended Use / Indications for Use
The Infrared Heat (Model: E0221) is intended to emit energy in the red and infrared spectrum for use in the treatment of full face wrinkles.
#### 6. Comparison to predicate devices
Compare with the predicate device, the subject device is very similar in design principle, intended use, indications for use, functions, material and the applicable standards. The differences between the subject device and predicate devices do not raise new questions of safety or effectiveness.
| Elements of<br>Comparison | Subject Device | Predicate Device<br>(K171323) | Predicate Device<br>(K201107) | Remark |
|----------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------|----------------------|
| Company | Light Tree Ventures<br>Europe B.V. | BioPhotas, Inc. | GTG Wellness<br>Co., Ltd. | -- |
| Trade Name | Infrared Heat | Biophotas Celluma3 | Opera Lebody | -- |
| Model | E0221 | / | / | -- |
| Classification<br>Name | Laser surgical instrument<br>for use in general and<br>plastic surgery and in<br>dermatology | Laser surgical<br>instrument for use in<br>general and plastic<br>surgery and in<br>dermatology | Laser surgical<br>instrument for use<br>in general and<br>plastic surgery and<br>in dermatology | Same |
| 510(k) Number | K223893 | K171323 | K201107 | -- |
| Product Code | OHS | OHS | OHS | -- |
| Indications<br>for<br>Use | The Infrared Heat (Model:<br>E0221) is intended to emit<br>energy in the red and<br>infrared spectrum for use<br>in the treatment of full face<br>wrinkles. | The<br>BioPhotas<br>Celluma3 is intended to<br>emit energy in the<br>visible and infrared<br>region of the spectrum<br>for use in the treatment<br>of full face wrinkles. | OPERA LEBODY<br>is an over the<br>counter device<br>that is intended for<br>the use in the<br>treatment of full<br>face wrinkles. | Same |
| Type of Use | Over-The-Counter use | Over-The-Counter use | Over-The-Counter use | Same |
| Light Source | LEDs | LEDs | LEDs | Same |
| Power Supply | Main unit: 3.7V, 1800mAh<br>lithium battery, 6.66Wh<br>Adapter Input: 100-240Va.c., 50/60Hz<br>Adapter Output: 5Vd.c, 2A | 110-120V | No publicity | Different,<br>Note 1 |
| Wavelength | 630nm,830nm+/- 20nm | Red: 640nm+/-25nm<br>NIR: 880nm+/-50nm | 2 types:<br>- Red (630nm)<br>- IR (830nm) | Similar,<br>Note 3 |
| Panels Type | 1 Panel | 1 Panel | 1 Panel (Mask) | Same |
| Output Power | 630nm + 830nm: 30 mW/cm² | 6.5 mw/cm² | 50 mw/cm² | Different,<br>Note 2 |
| Standard dose<br>in Joules | 18J/cm² | 11.7J/cm² | 30J/cm² | Different,<br>Note 2 |
| LED distribution | Uniform distribution | Uniform distribution | Uniform distribution | Same |
| Treatment area | 20*8 | 15*8 | No publicity | Similar,<br>Note 3 |
| LED number | 630nm: 30<br>830nm: 30 | No public | Total 78 LEDs | Similar,<br>Note 3 |
| Treatment Time | 10 minutes per day, 2-5<br>times per week | 3 times a week for 30<br>min. 4 weeks | 10 minutes daily, 3<br>days per week for<br>8 weeks | Different,<br>Note 2 |
| Operation<br>interface | Device uses a timer and<br>software to control<br>treatment duration. | Device uses a timer<br>and software to control<br>treatment duration. | Device uses a<br>timer and software<br>to control<br>treatment duration. | Same |
| Software | Yes | Yes | Yes | Same |
| EMC | IEC 60601-1-2 | IEC 60601-1-2 | IEC 60601-1-2 | Same |
| Safety | IEC 60601-1<br>IEC 60601-2-57<br>IEC 60601-1-11<br>IEC 62471 | IEC 60601-1 | IEC 60601-1<br>IEC 62471 | Same |
| Biocompatibility | ISO 10993-1<br>ISO 10993-5<br>ISO 10993-10<br>ISO 10993-23 | ISO 10993-1<br>ISO 10993-5<br>ISO 10993-10 | ISO 10993-1<br>ISO 10993-5<br>ISO 10993-10 | Same |
{5}------------------------------------------------
{6}------------------------------------------------
# Comparison in Detail(s):
Note 1: Although the "Power Supply" is a little different from the predicate devices, but they all complied with the IEC 60601-1 and IEC 60601-1-2 safety standards' requirements. So, these slight differences will not raise any safety or effectiveness issues.
Note 2: Although the "Output Power", "Standard dose in Joules", and "Treatment Time" of the subject device and predicate devices are a little different, the "Output Power" and "Standard dose in Joules" of the subject device is not higher than Predicate Device (K201107), indicating the safety of the device, and not lower than Predicate Device (K171323), indicating the effectiveness of the device. Besides, the "Treatment Time" is similar to predicate device. So, the "Output Power", "Standard dose in Joules", and "Treatment Time" of the subject device and predicate devices does not affect the effectiveness and safety of the device.
Note 3: Although the "Wavelength", "Treatment area" and "LED number" are slightly different from the predicate device, their treatment doses are all safe and effective, ang they all complied with the requirement of IEC 60601-2-57 and IEC 62471 standards. So, these slight differences will not raise any safety or effectiveness issues.
# 7. Test Summary
#### 7.1 Non-Clinical Tests Performed
- 1) Non-clinical tests were performed on the subject device in order to validate the design and to assure conformance with the following voluntary design standards in connection with medical device electrical safety, and electromagnetic compatibility:
{7}------------------------------------------------
# K223893
- AAMI/ANSI ES60601-1 2005/(R)2012 & A1:2012, C1:2009/(R)2012 & A2:2010/(R)2012 (Cons. Text) � [Incl. AMD2:2021] Medical electrical equipment - Part 1: General requirements for basic safety and essential performance.
- � IEC 60601-1-11 Edition 2.1 2020-07 Medical Electrical Equipment --Part 1: General Requirements for Basic Safety and Essential Performance --Collateral Standard: Requirements for Medical Electrical Equipment and Medical Electrical Systems Used in the Home Healthcare Environment.
- � IEC 60601-2-57 Edition 1.0 2011-01 Medical Electrical Equipment - Part 2-57: Particular requirements for the basic safety and essential performance of non-laser light source equipment intended for therapeutic, diagnostic, monitoring and cosmetic/aesthetic use.
- � IEC 60601-1-2 Edition 4.1 2020-09 Medical electrical equipment - Part 1-2: General requirements for basic safety and essential performance - Collateral Standard: Electromagnetic disturbances -Requirements and tests.
- � IEC 62471 First edition 2006-07 Photobiological safety of lamps and lamp systems.
- � IEC 62133-2 Edition 1.0 2017-02 Secondary cells and batteries containing alkaline or other non-acid electrolytes - Safety requirements for portable sealed secondary cells, and for batteries made from them, for use in portable applications - Part 2: Lithium systems.
- � IEC 60601-1-6 Edition 3.2 2020-07 Medical electrical equipment - Part 1-6: General requirements for basic safety and essential performance - Collateral standard: Usability
- � IEC 62366-1 Edition 1.1 2020-06 Medical devices - Part 1: Application of usability engineering to medical devices
# 2) Biocompatibility
The subject device is biocompatible for its intended use. They are complied with biocompatibility standards ISO 10993-5 (Cytotoxicity), ISO 10993-10 (Sensitization) and ISO 10993-23 (Irritation).
# 3) Software verification and validation testing
Software verification and validation testing were 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 concern, since a malfunction of, or a latent design flaw in, the Software Device leads to an erroneous diagnosis or a delay in delivery of appropriate medical care that would likely lead to Minor Injury.
# 4) Usability Testing
Usability testing was conducted on the Infrared Heat (Models: E0221), which complies with IEC 62366-1 and IEC 60601-1-6.
# 7.2 Summary of Clinical Performance
Clinical testing was not needed for this 510(k). The non-clinical performance testing described above is sufficient to support that the device can be used safely and effectively.
# 8. Date of the summary prepared: May 13, 2023
# 9. Final Conclusion:
The subject device is as safe, as effective, and performs as well as or better than the legally marketed predicated devices K171323 and K201107.
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.