K220290 · Us Hyperbaric Network · CBF · May 4, 2023 · Anesthesiology
Device Facts
Record ID
K220290
Device Name
Revitalair 430+
Applicant
Us Hyperbaric Network
Product Code
CBF · Anesthesiology
Decision Date
May 4, 2023
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 868.5470
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The intended use of the Portable Hyperbaric Chamber Revitalair® 430+ is to treat acute mountain sickness under the prescription of a health professional. The medical device is designed for use at physician offices and health institutions.
Device Story
Portable hyperbaric chamber for low-pressure treatment (up to 1.5 ATA); semi-rigid design; polyester-based plastic fabric cylinder with aluminum rings; 10 transparent windows for patient monitoring. Operated via external electric compressor; manual valves control inflation; safety relief valves prevent over-pressurization. Used in physician offices and health institutions; operated by healthcare professionals. Provides hyperbaric environment to treat acute mountain sickness; patient comfort monitored visually from exterior. Benefits include non-invasive symptom management for altitude-related conditions.
Clinical Evidence
No clinical data provided. Substantial equivalence supported by non-clinical bench testing, including electrical safety (IEC 60601-1), electromagnetic disturbance (IEC 60601-1-2), biocompatibility (ISO 10993, ISO 18562), and pressure testing (ASME PVHO-1).
Technological Characteristics
Semi-rigid hyperbaric chamber; polyester-based plastic fabric with aluminum ring construction; 900mm x 1850mm dimensions. Operates at 1.3-1.5 ATA via oil-less electric compressor. Includes manual valves, safety relief valves, and 10 transparent windows. Complies with ASME PVHO-1-2012. Biocompatibility per ISO 10993/18562. Electrical safety per IEC 60601-1.
Indications for Use
Indicated for treatment of acute mountain sickness in patients under prescription of a health professional. Contraindications include pneumothorax, pulmonary hyper-expansion, eardrum perforation, asthma, congenital spherocytosis, specific drug use (Cisplatinum, Disulfiram, Doxorubicin, Bleomycina, Sulfamylon, Amphetamines, Nicorette/Nicoderm, narcotic analgesics, steroids), emphysema with CO2 retention, fever (>38.5°C), cold/flu symptoms, history of middle ear surgery/problems, optic neuritis, optic barotrauma, pregnancy, airway diseases, blocked ear canals/sinuses, viral infections, excessive CO2 exposure, and decompression sickness.
Regulatory Classification
Identification
A hyperbaric chamber is a device that is intended to increase the environmental oxygen pressure to promote the movement of oxygen from the environment to a patient's tissue by means of pressurization that is greater than atmospheric pressure. This device does not include topical oxygen chambers for extremities (§ 878.5650).
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May 4, 2023
US Hyperbaric Network Jorge Millan Regulatory Consultant 7600 NW 69th Ave Medley, Florida 33166
Re: K220290
Trade/Device Name: Revitalair 430+ Regulation Number: 21 CFR 868.5470 Regulation Name: Hyperbaric Chamber Regulatory Class: Class II Product Code: CBF Dated: March 31, 2023 Received: April 3, 2023
Dear Jorge Millan:
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,
James J. Lee -S
James J. Lee, Ph.D. Division Director DHT1C: Division of Sleep Disordered Breathing, Respiratory and Anesthsia Devices OHT1: Office of Ophthalmic, Anesthesia, Respiratory, ENT and Dental Devices Office of Product Evaluation and Ouality Center for Devices and Radiological Health
Enclosure
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## Indications for Use
510(k) Number (if known) K220290
Device Name REVITALAIR 430F+
Indications for Use (Describe)
The intended use of the Portable Hyperbaric Chamber Revitalair® 430+ is to treat acute mountain sickness under the prescription of a health professional. The medical device is designed for use at health institutions and physician offices.
| Type of Use (Select one or both, as applicable) | |
|-------------------------------------------------|--|
|-------------------------------------------------|--|
X Prescription Use (Part 21 CFR 801 Subpart D)
| Over-The-Counter Use (21 CFR 801 Subpart C)
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## REVITALAIR 430+
K220290
## 510(K) Summary Revitalair 430+
## 1. Submitter Information
| Submitter | US Hyperbaric Network LLC |
|------------------|---------------------------|
| | 789 Shotgun Road |
| | Weston, FL 33326 |
| | USA |
| Contact: | Jorge Millan, PhD |
| | Regulatory Consultant |
| Telephone number | (786) 416-5587 |
| Fax number | (954) 208-0292 |
| E-mail | sigmabiomedical@gmail.com |
| Date prepared: | MAY 3, 2023 |
## 2. Subject Device Name
| Trade/Proprietary Name: | Revitalair® 430+ |
|-------------------------|-----------------------------|
| Common or Usual Name: | Portable Hyperbaric Chamber |
| Regulation Number: | 21 CFR 868.5470 |
| Regulation Name: | Hyperbaric chamber |
| Product Code: | CBF |
| Class | II |
| Panel | Anesthesiology Devices |
## 3. Predicate Devices
| Predicate Devices: | Primary Predicate:<br>Revitalair 430F, K171899<br>Reference devices:<br>Tampa Hyperbaric Monoplace Chamber, K981938<br>K051759, Flexi-Lite Hyperbaric Chamber by Pressure Tech |
|--------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|--------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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K220290
## 4. Indications for Use:
The intended use of the Portable Hyperbaric Chamber Revitalair® 430+ is to treat acute mountain sickness under the prescription of a health professional. The medical device is designed for use at physician offices and health institutions.
#### 5. Device Description:
The Portable Hyperbaric Chamber Revitalair® 430+ is a hyperbaric semi rigid chamber for low pressures (operating at pressures of no greater than 1.5 atmospheres absolute (ATA)). The operational design pressure of a hyperbaric chamber that encloses a human within its pressure boundary falls within the scope of the American Society of Mechanical Engineers Pressure Vessels Human Occupancy 1 (ASME PVHO 1-2012).
Revitalair® 430+ consists of 2 parts, the cabin or chamber and the compressor's cabinet. The chamber, weighing 62 pounds, is constructed of an airtight polyester-based plastic fabric joined by aluminum rings, forming a cylinder 900 mm in diameter and 1850 mm in length (Figure 1).
The chamber is inflated with atmospheric air through an electric compressor. Fittings allow the chamber to be connected to compressed air by means of manually controlled valves. The safety or relief valves are operated at pressures of 1.5 ATM which ensures safe operations. The compressor has an additional safety valve for any obstruction of the supply hose from the compressor to the Revitalair® 430+ has 10 transparent windows to let in light, 360º viewing and enable easy verification of the patient's comfort from the outside. The Revitalair® 430+ can be operated from the exterior. After folding it up, the Revitalair® 430+ is placed in its transportation box or in the optional carrying case.
## 6. Substantially Equivalence Discussion
The following table compares the Portable Hyperbaric Chamber Revitalair® 430+ (abbreviated as Revitalair® 430+) to the predicate device with respect to indications for use, principles of operation, technological characteristics, materials, and performance testing. The comparison of the devices provides more detailed information regarding the basis for the determination of substantial equivalence. The subject device does not raise of safety or effectiveness based on the similarities to the predicate device.
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## REVITALAIR 430+
K220290
## Table 5A – Comparison of Characteristics
| Manufacturer | Oxavita S.R.L. | Tampa Hyperbaric<br>Enterprise | Pressure Tech | US Hyperbaric Network | | Prescription - Rx Only | Yes | Yes | Yes | Yes | Same | Target Population | People with medical<br>conditions by altitude<br>sickness | -- | Persons with high<br>altitude mountain<br>sickness | People with medical<br>conditions by altitude<br>sickness | Same |
|-------------------|--------------------|---------------------------------------|----------------------------------|-----------------------|---------------------------|-------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------|-------------------|-----------------------------------------------------------|----|---------------------------------------------------------------------------|-----------------------------------------------------------|---------|
| Trade Name | Revitalair® 430F | Tampa Hyperbaric<br>Monoplace Chamber | Flexi-Lite Hyperbaric<br>Chamber | Revitalair® 430+ | Significant<br>Difference | Max Working<br>Pressure | 1.3 ATA -1.4 ATA | 3.0 ATA | 1.3 ATA | 1.3-1.5 ATA | Difference | Places of Use | Hospitals and clinics | -- | Home, Physician Office,<br>Outdoor, Hospital, Sub-<br>acute facility, EMS | Hospitals and clinics | Similar |
| 510(k) | K171899 | K981938 | K051759 | TBD | | Indications for Use | The intended use of the<br>Portable Hyperbaric<br>Chamber Revitalair®<br>430F is to treat mountain<br>sickness under the<br>prescription of a health<br>professional. The medical<br>device is designed for use<br>at physician offices and<br>health institutions. | -Carbon monoxide<br>poisoning with or<br>without cyanide<br>complications<br>-Smoke inhalation<br>-Exceptional blood loss<br>or anemia<br>-Clostridial myonecrosis<br>(gangrene)<br>Selected problem<br>chronic wounds<br>-Crush injury,<br>compartment<br>syndrome and acute<br>traumatic ischemia<br>-Compromised skin<br>grafts<br>-Osteomyelitis<br>-Thermal burns<br>-Osteoradionecrosis<br>(radiation burns)<br>Necrotizing soft tissue<br>infections<br>-Air and gas embolisms | The Flexi-Lite<br>Hyperbaric chamber is<br>a rugged & portable<br>hyperbaric chamber<br>intended to be used in<br>treating mild symptoms<br>consistent with Acute<br>Mountain Sickness<br>(AMS) as<br>prescribed by or under<br>the direction of a<br>physician.<br>Caution: Federal law<br>restricts this device td<br>sale by or on the order<br>of a<br>physician. | The intended use of the<br>Portable Hyperbaric<br>Chamber Revitalair®<br>430+ is to treat acute<br>mountain sickness<br>under the prescription<br>of a health<br>professional. The<br>medical device is<br>designed for use at<br>physician offices and<br>health institutions. | Similar | | | | | | |
| Product Code | CBF | CBF | CBF | CBF | Same | | | | | | | | | | | | |
| Regulation Number | 868.547 | 868.547 | 21 CFR868.5470 | 868.547 | Same | | | | | | | | | | | | |
| Regulation Name | Hyperbaric Chamber | Hyperbaric Chamber | Hyperbaric Chamber | Hyperbaric Chamber | Same | | | | | | | | | | | | |
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## REVITALAIR 430+
## K220290
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## REVITALAIR 430+
K220290
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REVITALAIR 430+
K220290
| Device | Revitalair 430F | Revitalair 430+ | Difference/<br>Similarity |
|----------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 510(K) | K171899 | K220290 | Similarity |
| Type of construction | Semi rigid | Semi rigid | Same |
| Dimensions | 36.2in x 74.8in | 36.2in x 74.8in | Same |
| Windows | 10 | 10 | Same |
| Transport Belts | 2 | 2 | Same |
| Relief Valves | Yes, Metal | Yes, Metal | Same |
| Drain Valves | Yes, 2 units only for emptying | Yes, 2 units only for emptying | Same |
| Operating Pressure | 1.3 -1.4 ATA | 1.3 ATA-1.5 ATA | Different |
| Inflation Method | Oil-less compressor | Oil-less compressor | Same |
| Locking System | System of metal rings | System of metal rings | Same |
| Materials | Polyester hatched 1100 18x18<br>Vinyl with phthalate free | Polyester hatched 1100 18x18<br>Vinyl with phthalate free | Same |
| Relief Valves | 2 by Plastic & Metal | 2 by Plastic & Metal | Same |
| Compressor | Oil-less | Oil-less | Same |
| Air Filter in the<br>Compressor | Yes | Yes | Same |
| Pressure Measurement | Yes | Yes | Same |
| Air Filter Chamber | Yes | Yes | Same |
| Skills of the Person to<br>Leave the Chamber | Yes | Yes | Same |
| Operating Temperature | 59 °F / 113 °F | 59 °F / 113 °F | Similar,<br>range |
| Contraindications | Patients with:<br>-Pneumothorax, Pulmonary hyper expansion<br>-Eardrum perforation<br>-Asthma<br>-Congenital spherocytosis<br>-The use of any of these drugs:<br>Cisplatinum, Disulfiram(Antabuse)<br>Doxorubicin,Adriami cina,<br>Bleomycina, Sulfamylon,<br>Anphetamines,Nicorette-<br>Nicoderm, Narcotic analgesics,<br>Steroids<br>-Emphysema with CO2 retention.<br>-Fever (>38.5° C), Colds, flu symptoms<br>-Record of medium ear problems or surgery<br>-Convulsions<br>-Optic Neuritis, Optic barotraumas | Patients with:<br>-Pneumothorax, Pulmonary hyper expansion<br>-Eardrum perforation<br>-Asthma<br>-Congenital spherocytosis<br>-The use of any of these drugs:<br>Cisplatinum, Disulfiram(Antabuse)<br>Doxorubicin,Adriami cina,<br>Bleomycina, Sulfamylon,<br>Anphetamines,Nicorette-<br>Nicoderm, Narcotic analgesics,<br>Steroids<br>-Emphysema with CO2 retention.<br>-Fever (>38.5° C), Colds, flu symptoms<br>-Record of medium ear problems or surgery | Same |
| | -Airways diseases, Blocked ear<br>-Airways canals, Blocked<br>-Viral<br>-Excessive CO2 Exposure<br>-Decompression sickness | Sinuses infections | -Optic Neuritis, Optic<br>barotraumas<br>-Pregnancy<br>-Airways diseases, Blocked ear<br>canals, Blocked Sinuses<br>-Viral infections<br>-Excessive CO2 Exposure<br>-Decompression sickness |
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## K220290
## Discussion of Similarities:
All systems presented make use of a compressor to provide inflation of a rigid or semi rigid chamber. All systems use similar design principles, designs and technologies to achieve the intended use. All system use drain valves, locking system and materials. The design, technology, materials, manufacturing processes are similar.
## Discussion of Differences
When comparing the Revitalair 430+ to the Primary Predicate (Revitalair 430F) there is a difference in the operating pressure. Revitalair 430+ can be operated at maximum of 1.5 ATA, while Revitalair 430F operates at 1.3-1.4 ATA. The operating temperature difference is about 7%-15% higher than the maximum pressure of the 430F. The increase in operating pressure does not raise new safety issues as hyperbaric chambers can be run at higher pressures than 1.3 ATA. The reference predicate K981938, for example, operates at pressures of up to 3 ATA. The 430+ hyperbaric chamber has been validated when operated at 1.5 ATA with safety testing and found to meet safety requirements.
## 7. Non-Clinical Performance Data:
As part of demonstrating safety and effectiveness of the Revitalair® 430+ Hyperbaric Chamber and in showing substantial equivalence to the predicate device to this 510(k) submission, US Hyperbaric Network completed an number of non-clinical performance tests. Testing was performed as determined by the hazard analysis.
The Revitalair® 430+ Hyperbaric Chamber meets all the requirements for overall design, biocompatibility, and electrical safety results confirming that the design output meets the design inputs and specifications for the device. The Revitalair® 430+ Hyperbaric Chamber passed all the testing in accordance with internal requirements, and the standards shown below to support substantial equivalence of the subject device:
## Section 5
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# US HYPERBARIC NET
K220290 REVITALAIR 430+
- Electrical safety testing per IEC 60601-1
- · Electromagnetic Disturbance (EMD) testing per IEC 60601-1-2
- · Biocompatibility testing Cytotoxicity, Sensitization, Gas emission VOC, Particulates, Inorganic gases (Ozone, CO, CO2) per ISO 10993 and ISO 18562
In addition to the guidance and standards testing, the following life testing was performed:
• Device Life Report which address's the device's useful life based on reliability analysis of the individual components
• Pressure Testing based on ASME PVHO-1-2007, sections: 2-7.2 al 2-7.7; 4-8.1.1; 4-8.1.4 which address's the device's response to excessive pressures.
## 8. Clinical Performance Data
There was no human clinical testing required to support the medical device as the indications for use is equivalent to the predicate device. These types of devices, including the predicate devices, have been on the market for many years with proven safety and efficacy for the device. The non-clinical testing detailed in this submission supports the substantial equivalence of the device.
## 9. Conclusion:
The Portable Hyperbaric Chamber Revitalair® 430+, as designed and manufactured, is determined to be substantially equivalent to the cited primary predicate device Revitalair 430+ and its primary predicate device have the similar intended use, have similar technological characteristics, and are made of similar materials. All devices encompass the same range of physical dimensions and similar ranges of operating pressures.
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.