Avazzia OTC TENS for aesthetics, model BEST-AV1™: EZZI-LIFT™ Device
Applicant
Avazzia, Inc.
Product Code
NFO · Neurology
Decision Date
Apr 27, 2021
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 882.5890
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Avazzia OTC TENS for aesthetics, model BEST-AV1™: EZZI-LIFT™ Device is indicated for over-the-counter aesthetic use including facial and neck stimulation or body skin stimulation.
Device Story
Handheld, battery-operated TENS device for home or clinical use. Applies electrical stimulation to skin via built-in or accessory electrodes (spherical, brush, pencil). User selects mode and power setting to deliver short-duration, high-voltage pulsed current (HVPC) to face, neck, or body. Device output is controlled by user; intended to provide aesthetic skin stimulation. Healthcare providers or patients use device to potentially improve skin appearance. Bench testing confirms output characteristics and safety compliance.
Clinical Evidence
Bench testing only. Evaluated output waveform, energy characteristics, electrical/constructional safety (IEC 60601-1, IEC 60601-2-10), and electromagnetic compatibility (IEC 60601-1-2). Usability study conducted per IEC 62366 to support over-the-counter use. No clinical data presented.
Technological Characteristics
Handheld, AA battery-operated. Electrodes: Stainless steel 316. Waveform: positive square wave followed by damped sinusoidal. Output: 15-121 Hz, 1.1 mSec pulse duration. Connectivity: Standalone. Standards: IEC 60601-1, IEC 60601-1-2, IEC 60601-2-10, ISO 14971, IEC 62366. Software: IEC 62304 compliant.
Indications for Use
Indicated for over-the-counter aesthetic use, including facial, neck, and body skin stimulation.
Regulatory Classification
Identification
A transcutaneous electrical nerve stimulator for pain relief is a device used to apply an electrical current to electrodes on a patient's skin to treat pain.
Predicate Devices
NuFACE Trinity Facial and Neck Skin Toning Device (K181008)
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April 27, 2021
Avazzia, Inc Ms. Tammy Lahutsky Regulatory Affairs 13140 Coit Road, Suite 515 Dallas, Texas 75240
Re: K191951
Trade/Device Name: Avazzia OTC TENS for Aesthetics, model BEST-AV1: EZZI-LIFT Device Regulation Number: 21 CFR 882.5890 Regulation Name: Transcutaneous Electrical Nerve Stimulator For Pain Relief Regulatory Class: Class II Product Code: NFO Dated: March 25, 2021 Received: March 26, 2021
Dear Ms. Lahutsky:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's
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requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Jitendra Virani Acting Assistant Director DHT5B: Division of Neuromodulation and Physical Medicine Devices OHT5: Office of Neurological and Physical Medicine Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K191951
Device Name
Avazzia OTC TENS for Aesthetics, model BEST-AV1™: EZZI-LIFT™ Device
Indications for Use (Describe)
The Avazzia OTC TENS for aesthetics, model BEST-AV1™: EZZI-LIFT™ Device is indicated for over-the-counter aesthetic use including facial and neck stimulation or body skin stimulation.
| Type of Use (Select one or both, as applicable) |
|-------------------------------------------------|
|-------------------------------------------------|
Prescription Use (Part 21 CFR 801 Subpart D)
X Over-The-Counter Use (21 CFR 801 Subpart C)
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# 510(k) Summary
| Submitted by: | |
|----------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Manufacturer and Sponsor: | Avazzia, Inc.<br>13140 Coit Road<br>Suite 515<br>Dallas, TX 75240 USA |
| Telephone: | 214-575-2820 |
| Contact Person: | Tammy Lahutsky |
| Date of Summary Preparation: | April 26, 2021 |
| Trade Names of Candidate Devices: | Avazzia OTC TENS for aesthetics, model BEST-AV1™: EZZI-LIFT™<br>Device |
| Device names: | |
| Device Trade Proprietary name:<br>Device Common or Usual Name:<br>Classification Name:<br>Regulation Number:<br>Regulation Class | Avazzia OTC TENS for aesthetics, model BEST-AV1™: EZZI-LIFT™ Device<br>Aesthetic TENS Device<br>Transcutaneous Electrical Nerve Stimulator for Pain Relief<br>21 CFR 882.5890<br>Class II |
| Product code: | NEO |
## Predicate Devices
- . NuFACE Trinity Facial and Neck Skin Toning Device, K181008, 08/14/2018, TENS Class II 21 CFR 882.5890 NFO (primary predicate)
- . NuBODY Skin Toning Device, K171588, 07/27/2017, TENS Class II 21 CFR 882.5890 NFO (secondary predicate)
## Reference Device used to support scientific methodology
- o Avazzia OTC TENS Model Best-AV1™: Med-Best™, Med-Sport™, Avazzia Blue™, Avazzia Star™, K162392, 05/12/2017, TENS Class II 21 CFR 882.5890 NUH is identical in manufacturing to the candidate device and is used to support biocompatibility, electromagnetic compatibility and electrical safety testing.
#### Indications for Use
The Avazzia OTC TENS for aesthetics, model BEST-AV1™: EZZI-LIFT™ Device is indicated for over-thecounter aesthetic use including facial and neck stimulation or body skin stimulation.
# Description of Candidate Device
Candidate device is a handheld, AA battery-operated portable device for use in the home or clinic. It has pre-set modes and is for over-the-counter use in the home or a clinical setting.
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#### 510k Aesthetic TENS, K191951
The candidate device uses transcutaneous electrical stimulation (TENS) for aesthetic use for facial, neck, and body stimulation.
## How the Device Works
Candidate device uses TENS applied to the skin surface with cutaneous electrodes to stimulate the skin of the face, neck and body for aesthetic use.
The EZZI-LIFT device has built-in electrodes. Accessories, listed below, are also available to be used with the device.
#### Available Accessories
- . Cutaneous electrodes:
- o Spherical Soft tissue electrodes with common name: Y electrodes
- o Brush electrode
- Small Circular Electrode with common name: Pencil electrode o
- Lead wires .
The user can apply the built-in electrodes or place accessory electrodes where indicated and apply stimulation for a recommended period of time. The user manual contains recommended treatment methods and times.
The user controls the output by selecting the mode and power setting.
## Scientific Concepts
Various modes in the candidate device are suited for TENS applications. Very short duration high voltage pulsed current (HVPC) stimulates the skin of the face, neck and body for aesthetic use.
## Predicate Comparison
Significant physical and performance characteristics of the device including Stimulation Output Specifications & Summary of the Technological Characteristics Compared to the Predicates are shown in the table below.
The candidate device has similar technological characteristics (i.e., design, material, chemical composition, energy source) as the predicate devices as summarized in the technological characteristics.
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| page | 3 |
|------|---|
|------|---|
| Device Comparison Table<br>(i.e., design, material, chemical composition, energy source) | | | | |
|------------------------------------------------------------------------------------------|-----------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------|
| Characteristic | units | Candidate | Primary Predicate | Secondary Predicate |
| Device Name | | EZZI-LIFT | NuFACE Trinity | NuBody |
| 510K | | K191951 | K181008 | K171588 |
| Manufacturer | | Avazzia, Inc. | Carol Cole Company<br>(dba NuFACE) | Carol Cole Company<br>(dba NuFACE) |
| Indications for Use | | The Avazzia OTC TENS<br>for aesthetics, model<br>BEST-AV1™: EZZI-<br>LIFT™ Device is<br>indicated for over-the-<br>counter aesthetic use<br>including facial and<br>neck stimulation or<br>body skin stimulation. | The NuFACE Trinity<br>Device is intended for<br>facial and neck<br>stimulation and is<br>indicated for over-<br>the-counter cosmetic<br>use. | NuBODY Skin Toning<br>Device is intended for<br>body skin stimulation<br>and is indicated for<br>over-the-counter<br>cosmetic use. |
| Anatomic Sites | | Face, neck, and body | Face and neck | Body |
| Number of Output<br>Modes | number | 4 | 1 | 1 |
| Low Battery Indicator | | Yes | Yes | Yes |
| Automatic shut off | (minutes) | 60 | 20 | 5 |
| Compliance with<br>Voluntary Standards | Yes/No | IEC 60601-1<br>IEC 60601-1-2<br>IEC 60601-2-10<br>ISO 14971<br>IEC 62366 | IEC 60601-1<br>IEC 60601-1-2 | IEC 60601-1<br>IEC 60601-1-2<br>IEC 60601-2-10<br>IEC 60529, ISO 14971<br>IEC 60601-1-6<br>IEC 62366 |
| Compliance with 21<br>CFR 898 | Yes / No | Yes | Yes | Yes |
| Weight | ounces | 5.4 | 9 | 10 to 14 |
| Dimensions<br>[W x H x D] | (in.) | 2.6" X 4.7" X 1.35" | 2.8" x 5.1" x 1.3" | 2" x 6.5" x 6.0" |
| Housing Materials and<br>Construction | | PCBs inside plastic<br>case housing | Thermoplastic | Thermoplastic |
| User Interface Display | | LEDs and switches | not publicly available | not publicly available |
| Energy type | | Electric stimulation | Electric stimulation | Electric stimulation |
| Number, Size, and Type<br>of Batteries | | Two 1.5 V AA batteries | Internal rechargeable<br>Lithium-ion battery | Internal rechargeable<br>Lithium-ion battery |
| Stimulation Output Specifications | | | | |
| Characteristic | units | Candidate | Predicate | Predicate |
| Device Name | | EZZI-LIFT | NuFACE Trinity | NuBody |
| Waveform Shape | | positive square wave<br>followed by a damped<br>sinusoidal waveform<br>of variable duration<br>depending on<br>damping and body<br>loading | pulsed biphasic<br>modulated square<br>wave | monophasic voltage<br>modulated square<br>wave |
| Max output voltage<br>(+/- 20%) | | | | |
| - at 500 Ω | V | -42 | 28 | 28 |
| - at 2,000 Ω | V | -122 | not publicly available | not publicly available |
| - at 10,000 Ω | V | -348 | not publicly available | not publicly available |
| Max output current<br>(+/-20%) | | 500μA | | |
| - at 500 Ω | μA | 363 | 400 | 900 |
| - at 2,000 Ω | μΑ | 117 | not publicly available | not publicly available |
| - at 10,000 Ω | μΑ | 38 | not publicly available | not publicly available |
| Duration of primary<br>(depolarizing phase) | mSec | 0.5 | 60 | 60 |
| Pulse Duration | mSec | 1.1 | 60 | 60 |
| Frequency | Hz | 15 to 121 | 8.3 | 8.3 |
| Net Charge per pulse at<br>500 Ω | μC | 4 | not publicly available | 54 |
| Max phase charge | μC | 10 | not publicly available | not publicly available |
| Max current density at<br>500 Ω | μΑ/cm² | Built-in, Y, Brush: 800<br>Pencil: 19,000 | 419 | 468 |
| Max average power<br>density at 500 Ω | μW/cm² | Built-in, Y, Brush: 500<br>Pencil: 3,500 | not publicly available | 4,180 |
| Burst mode | | | | |
| (a) pulse per burst | number | 1 | 20 | 20 |
| (b) burst per second | number | n/a | 8.3 | 8.3 |
| (c) burst duration | (sec) | n/a | 2.4 | 2.4 |
| (d) duty cycle | | n/a | 20.2sec | 20.2sec |
| On Time (per second) | seconds | 0.1 | not publicly available | not publicly available |
| Off Time (per second) | seconds | 0.9 | not publicly available | not publicly available |
| Electrodes | | | | |
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| œ<br>page<br>D<br>1<br>A | |
|--------------------------|--|
|--------------------------|--|
| Stimulation Output Specifications | | | | |
|---------------------------------------------------------|-----------|---------------------|------------------------|------------------------|
| Characteristic | units | Candidate | Predicate | Predicate |
| Device Name | | EZZI-LIFT | NuFACE Trinity | NuBody |
| (a) materials | | Stainless steel 316 | Chrome-plated | Chrome-plated |
| (b) electroconductive<br>media | | n/a | Conductive gel | Conductive gel |
| (c) electrode-to-skin<br>impedance range | | less than 15 | not publicly available | not publicly available |
| (d) max duration of<br>use (same as device<br>shut off) | (minutes) | 60 | 20 | 20 |
| (e) conductive<br>surface area | | | | |
| built in rectangular | cm2 | 1.94 | - | - |
| spherical | cm2 | 5.60 | not publicly available | not publicly available |
| brush/comb | cm2 | 0.56 | not publicly available | not publicly available |
| small circular,<br>pencil-like | cm2 | 0.023 | not publicly available | not publicly available |
#### Comparison of technical characteristics with the predicate devices
Transcutaneous electric nerve stimulation (TENS) is the technological principle for both the subject and predicate devices. It is based on the use of electric stimulation to the skin for aesthetic use.
At a high level, the subject and predicate devices are based on the following same technological elements:
- . Transcutaneous electric nerve stimulation (TENS) to the skin for aesthetic use
- . Quantity of electric stimulation applied to the skin resulting from short, pulsed electrical current that results in only microamperage applications per second, also known as microcurrent.
- . Meet the same medical device general safety requirements IEC 60601-1 and requirements EMC: IEC 60601-1-2.
There are variations between the subject and predicate devices for specific waveform shape, max voltage, phase charge, pulses per second, duty cycle and current.
## Rationale that differences in technical performance specifications are within range of equivalence, and therefore, do not raise new questions.
The variations in technical characteristics fall within the range of Agency accepted differences for devices with the same principal of operation and the same intended use. This is consistent with the Agency accepted standard, ANSI/AAMI NS4:2013/ (R)2017 Transcutaneous electrical nerve stimulators, that references combination of current or charge over time for determining safety for Transcutaneous electrical stimulators.
The ANSI/AAMI document established a maximum charge to prevent serious injury or death.
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page 6
Peak instantaneous maximum voltage and pulse width are considered and included in determination of charge per pulse and the resulting current flow and determining safety.
The candidate devices fall within the same range of equivalence for performance and energy output for meeting the ANSI/AAMI NS4:2013/(R)2017 standard requirements for safety; and therefore, they do not raise new questions of safety.
## Nonclinical Tests
Nonclinical bench testing was performed to demonstrate that the candidate device met design specifications and accepted safety standards and requirements.
Performance testing was conducted using a production equivalent of the candidate device. The testing consisted of the evaluation of output waveform and energy characteristics. Results were compared to predicate device performance characteristics.
Additionally, output energy, electrical and constructional safety and EMC testing of the candidate device was conducted in accordance with Medical electrical equipment – Part 1: General requirements for basic safety and essential performance, IEC 60601-1:2005 MOD, Medical electrical equipment - Part 1-2 : General requirements for basic safety and essential performance - Collateral Standard: Electromagnetic disturbances - Requirements and tests, IEC 60601-1-2, Edition 4.0 2014-02, and Medical electrical equipment - Part 2-10: Particular requirements for the basic safety and essential performance of nerve and muscle stimulators, IEC 60601-2-10, 2016.
The software development process and software verification is conducted according to Medical device software – Software life cycle processes, IEC 62304, 2015 and the Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices – Guidance for Industry and FDA Staff – May 11, 2005.
Usability study was performed to assess the candidate device for aesthetic use. The candidate device and accompanying instructions for use met requirements for usability factors for over-the-counter use. No new questions of safety or efficacy were raised. No new risks were raised. The instructions for use support the safe and effective use of the EZZI-LIFT device and accessories for aesthetic use. Reference FDA guidance, "Applying Human Factors and Usability Engineering to Medical Devices, Guidance for Industry and Food and Drug Administration Staff", 2016 and IEC 62366, Medical devices - Part 1: Application of usability engineering to medical devices, 2015.
Results from bench testing and performance tests are compared to that of predicate devices in a comparison table format.
Nonclinical test results and studies, including the performance bench testing, product safety testing, software, usability studies, and risk management activities in conformance with Medical devices — Application of risk management to medical devices, ISO 14971, 2012 were reviewed and evaluated.
The candidate devices fall within the same range of equivalence for output energy characteristics and construction for meeting accepted safety standards for transcutaneous electrical nerve and muscle stimulators; and therefore, they do not raise new questions of safety.
Results confirmed that design and safety requirements were met, and that no new questions of safety or effectiveness were raised. This data was used to determine substantial equivalence.
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# Safety and Effectiveness
The Avazzia device technological specifications are similar; therefore, they do not pose new questions regarding safety and effectiveness.
Indications for use for TENS OTC for aesthetic use have been established, therefore, indications for use do not pose new questions regarding safety and effectiveness.
# Conclusion
The Avazzia EZZI-LIFT device has intended use and technological characteristics that are substantially equivalent to the predicate devices.
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.