K191107 · Alleva Medical (D.G), Ltd. · JOW · Aug 27, 2019 · Cardiovascular
Device Facts
Record ID
K191107
Device Name
Plexus
Applicant
Alleva Medical (D.G), Ltd.
Product Code
JOW · Cardiovascular
Decision Date
Aug 27, 2019
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 870.5800
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Plexus RP00 Disposable Portable Deep Vein Thrombosis (DVT) Prevention Device is intended to be used in either home or clinical settings for: - Aiding the prevention of DVT onset - Enhancing blood circulation in the lower extremities - Diminishing post-operative pain and swelling - Reducing wound healing time, and - Serving as a prophylaxis for DVT for stationary or bedridden individuals - Aid in the treatment of: stasis dermatitis, venous stasis ulcers, arterial and diabetic leg ulcers, chronic venous insufficiency and reduction of edema in the lower limbs
Device Story
Portable DVT prevention device; consists of pump unit and pressure sleeve with internal air bladder. Operates by inflating bladder to 50mmHg; automatic deflation for 50 seconds per cycle. Used in home or clinical settings; operated by patient or clinician. Provides intermittent pneumatic compression to lower limbs to stimulate blood flow. Powered by internal rechargeable battery. Single-button interface; LED indicators for status/alarms. Benefits include DVT prophylaxis, reduced edema, and improved wound healing. Healthcare providers use device to manage venous stasis and post-operative recovery.
Clinical Evidence
No clinical testing was performed. Substantial equivalence supported by bench testing, including biocompatibility (ISO 10993-5, 10), electrical safety/EMC (IEC 60601-1, 60601-1-2), and functional performance testing (battery life, pressure accuracy, inflation/deflation timing, sleeve integrity).
Technological Characteristics
Hard ABS plastic pump housing; soft non-woven fabric sleeves with polyurethane film bladders. Miniature air pump and pressure relief valve. 3.7V 2600mAh lithium battery. Microprocessor-controlled intermittent compression (50mmHg). Clean/non-sterile. IEC 60601-1/1-2 compliant.
Indications for Use
Indicated for patients 21+ years old in home or clinical settings for DVT prevention, circulation enhancement, pain/swelling reduction, wound healing, and treatment of stasis dermatitis, venous/arterial/diabetic ulcers, chronic venous insufficiency, and edema.
Regulatory Classification
Identification
A compressible limb sleeve is a device that is used to prevent pooling of blood in a limb by inflating periodically a sleeve around the limb.
{0}------------------------------------------------
Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health and Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.
August 27, 2019
Alleva Medical (D.G.) Ltd Max Choi CEO Suite M-Q, 12th Floor, Kings Wing Plaza 2, 1 On Kwan Street Hong Kong, Hk
Re: K191107
Trade/Device Name: Plexus RP100 Disposable Portable Deep Vein Thrombosis Prevention Device Regulation Number: 21 CFR 870.5800 Regulation Name: Compressible Limb Sleeve Regulatory Class: Class II Product Code: JOW Dated: July 29, 2019 Received: July 31, 2019
Dear Max Choi:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration. listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
{1}------------------------------------------------
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device (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.
Fernando Aguel Assistant Director DHT2B: Division of Circulatory Support, Structural and Vascular Devices OHT2: Office of Cardiovascular Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
{2}------------------------------------------------
# Indications for Use
510(k) Number (if known) K191107
Device Name
Plexus RP100 Disposable Portable Deep Vein Thrombosis Prevention Device
Indications for Use (Describe)
The Plexus RP00 Disposable Portable Deep Vein Thrombosis (DVT) Prevention Device is intended to be used in either home or clinical settings for:
- · Aiding the prevention of DVT onset
- · Enhancing blood circulation in the lower extremities
- · Diminishing post-operative pain and swelling
- · Reducing wound healing time, and
- · Serving as a prophylaxis for DVT for stationary or bedridden individuals
· Aid in the treatment of: stasis dermatitis, venous stasis ulcers, arterial and diabetic leg ulcers, chronic venous insufficiency and reduction of edema in the lower limbs
| 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)
# 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}------------------------------------------------
Image /page/3/Picture/1 description: The image shows the logo for Alleva Medical LTD. The logo features a stylized letter "A" in blue, followed by the company name in a sans-serif font. Below the company name is the address: Suite M-Q, 12th Floor, Kings Wing Plaza 2, 1 On Kwan St. Shek Mun, Shatin, N.T., Hong Kong, along with the phone number +852 3166 7200, fax number +852 2355 7663, and website www.allevamedical.com.
### 510(k) Summary
### Summary Preparation Date:
April 10, 2019
### Submitter
Alleva Medical Ltd Suite M-Q, 12th Floor, Kings Wing Plaza 2 1 On Kwan Street, Shek Mun, Shatin New Territories, Hong Kong
### Contact Person
Mr. Max Choi Chief Executive Officer Phone: +852-3166-7239 Fax: +852-2355-7663 Email: max@allevamedical.com
### Device Name
Device Name: Portable Deep Vein Thrombosis Prevention Device Proprietary Trade Name: Plexus RP100 Common Name: Compressible Limb Sleeve Device
### Product Classification
Product Classification: Compressible Lim Sleeve, 21 CFR 870.5800 Product Code: JOW Device Class: II
### Predicate Device:
Cirona 6300 DVT Prevention Device, Devon Medical Products, K151189
### Device Description
The Plexus RP100 Portable Deep Vein Thrombosis ("DVT") Prevention Device is an electronic device that helps to prevent the onset of deep vein thrombosis by stimulating blood flow and increasing venous flow velocity. Each RP100 DVT Prevention Device consists of a pump body and a pressure sleeve with internal air bladder. When turned on, the air bladder inside the sleeve will be automatically inflated to a pre-set level, thereby providing intermittent pressure to the calf.
{4}------------------------------------------------
Image /page/4/Picture/0 description: The image shows the logo and contact information for Alleva Medical LTD. The logo features a stylized letter A in blue. The text includes the company name, address (Suite M-Q, 12th Floor, Kings Wing Plaza 2, 1 On Kwan St. Shek Mun, Shatin, N.T., Hong Kong), telephone number (+852 3166 7200), fax number (+852 2355 7663), and website address (www.allevamedical.com).
The commercial saleable package will consist of two pump units with their sleeves, one for each leg.
The unit operates by inflating the air bladder until the pressure reaches 50mmHg. After reaching this pressure level, the unit will automatically deflate for 50 seconds to complete one cycle. Therapy could persist as long as the patient needs or is instructed by their physician. When the therapy ends, the patient simply would turn off the device by the press of a power button.
## Indications for Use
The Plexus RP100 Portable DVT Prevention Device is intended to be used by patients 21 years of age or older, in either home or clinical settings for:
- Aiding the prevention of DVT onset ●
- . Enhancing blood circulation in the lower extremities
- . Diminishing post-operative pain and swelling
- Reducing wound healing time
- Serving as a prophylaxis for DVT for stationary or bedridden individuals
- . Aiding in the treatment of: stasis dermatitis, venous stasis ulcers, arterial and diabetic leg ulcers, chronic venous insufficiency and reduction of edema in the lower limbs
## Summary of Technological Characteristics
Both the Plexus RP100 and predicate device, Cirona 6300 (K151189), share the same operating principles whereby each unit provides intermittent compression and inflation is supplied by a miniature air pump and deflation is managed by the pressure relief valve. Both devices utilize a microprocessor to deliver 50mmHg of pressurized air to the bladders in the sleeve garment for a predefined period of time. Further, both devices have similar usability, in that they both utilize a single button to initiate device use and utilize Velcro in securing the device to the lower limb. Both pump casings are constructed of hard ABS plastic to provide structural protection to the internal components and the sleeves are made of soft, non-woven materials with the bladders made of Polyurethane films. Both devices are also powered by an internal rechargeable battery.
## Summary of Non-Clinical Testing
The following non-clinical testing has been completed to demonstrate that the Plexus RP100 device is performing as intended and has performance characteristics that are substantially equivalent to the listed predicate device.
| Standards and Regulations Applied | Results |
|--------------------------------------------|---------|
| ISO10993-5:2009 In-Vitro Cytotoxicity | Passed |
| ISO10993-10:2010 Intracutaneous Reactivity | Passed |
## Biocompatibility Testing
{5}------------------------------------------------
Image /page/5/Picture/0 description: The image shows the logo and contact information for Alleva Medical LTD. The logo features a stylized letter A in blue. The text includes the company's address, which is Suite M-Q, 12th Floor, Kings Wing Plaza 2, 1 On Kwan St. Shek Mun, Shatin, N.T., Hong Kong, as well as their phone number +852 3166 7200, fax number +852 2355 7663, and website www.allevamedical.com.
| ISO10993-10: 2010 Skin Sensitization | Passed |
|--------------------------------------|--------|
|--------------------------------------|--------|
### Electromagnetic Compatibility and Electrical Safety Testing
| Standards and Regulations Applied | Results |
|--------------------------------------------------------------------------|---------|
| IEC 60601-1:2005 (Third Edition) + A1:2012(or IEC 60601-1: 2012 reprint) | Passed |
| IEC 60601-1-2:2014 | Passed |
### Functional Performance Testing
| Test Items | Results |
|-----------------------------|-------------------------|
| Battery charging time test | Design requirements met |
| Sleeve leakage test | Design requirements met |
| Pressure accuracy test | Design requirements met |
| Inflation time test | Design requirements met |
| Deflation time test | Design requirements met |
| Battery operating life test | Design requirements met |
| Sleeve integrity test | Design requirements met |
| Total worklife test | Design requirements met |
## Software Verification and Validation
Software verification and validation activities were completed and there were no unresolved anomalies. The software was considered a "moderate" level of concern, since a failure or latent flaw in the software could directly result in minor injury to the user.
## Summary of Clinical Testings
No clinical testing was performed to support the claim of substantial equivalence to the Cirona 6300 device.
{6}------------------------------------------------
Image /page/6/Picture/0 description: The image shows the logo and contact information for Alleva Medical LTD. The logo features a stylized letter A in blue. Below the logo is the company name, address (Suite M-Q, 12th Floor, Kings Wing Plaza 2, 1 On Kwan St. Shek Mun, Shatin, N.T., Hong Kong), telephone number (+852 3166 7200), fax number (+852 2355 7663), and website (www.allevamedical.com).
# Summary of Substantial Equivalence
| Characteristics | Subject Device | Predicate Device | Comparison |
|-------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------|
| Manufacturer | Alleva Medical (D.G) Ltd | Ascent Healthcare, LLC, DBA<br>Devon Medical Products | - |
| 510(k) Number | N/A | K151189 | - |
| Class | II | II | Equivalent |
| Product Name | Disposable Deep Vein<br>Thrombosis Prevention<br>Device | Disposable Deep Vein<br>Thrombosis Prevention<br>Device | - |
| Product Code | JOW | JOW | Equivalent |
| Regulation Number | 21 CFR 870.5800 | 21 CFR 870.5800 | Equivalent |
| Intended Use | • Aiding the prevention of<br>DVT onset<br>• Enhancing blood<br>circulation in the lower<br>extremities<br>• Diminishing post-<br>operative pain and<br>swelling<br>• Reducing wound healing<br>time<br>• Serving as a prophylaxis<br>for DVT for stationary or<br>bedridden individuals<br>• Aid in the treatment of:<br>stasis dermatitis, venous<br>stasis ulcers, arterial and<br>diabetic leg ulcers,<br>chronic venous<br>insufficiency and<br>reduction of edema in<br>the lower limbs | • Aid in the prevention of<br>DVT<br>• Enhance blood circulation<br>• Diminish post-operative<br>pain and swelling<br>• Reduce wound healing<br>time<br>• Aid in the treatment of:<br>stasis dermatitis, venous<br>stasis ulcers, arterial and<br>diabetic leg ulcers, chronic<br>venous insufficiency and<br>reduction of edema in the<br>lower limbs<br>• Serve as a prophylaxis for<br>DVT by persons expecting<br>to be stationary for long<br>periods of time | Equivalent |
| Use Settings | Home, hospital, surgery<br>center | Home, hospital, surgery<br>center | Equivalent |
| Portability | Portable | Portable | Equivalent |
| Principles of<br>operation | Air pump supplying<br>pressure to the air bladder<br>on the pressure garment.<br>Air pressure is relieved<br>through an open air valve | Air pump supplying<br>pressure to the air bladder<br>on the pressure garment.<br>Air pressure is relieved<br>through an open air valve | Equivalent |
| Location of treatment | Lower limbs/calves | Lower limb/calves | Equivalent |
| Pressure source | Miniature air pump | Miniature air pump | Equivalent |
| Therapy Mode | One | One | Equivalent |
| Compression<br>pressure level | 50mmHg | 50mmHg | Equivalent |
| Cycle pattern | Inflation to target pressure,<br>then 50 seconds rest period | Inflation to target pressure,<br>then 50 seconds rest period | Equivalent |
| Sterility | Clean/non-sterile | Clean/non-sterile | Equivalent |
| Source of power | Lithium Battery 3.7V<br>2600mAh | Lithium Battery 3.7V<br>1350mAh | RP100/Plexus has a<br>higher battery<br>capacity, otherwise<br>equivalent |
| Power supply | AC Input: 100~240V,<br>AC50/60Hz, 500mA Max;<br>DC output 5V 2A (2 Plugs) | AC Input: 100~240V,<br>AC50/60Hz, 500mA Max;<br>DC output 5V 2A (2 Plugs) | Equivalent |
| Sleeve material | Soft non-woven fabric | Soft non-woven fabric | Equivalent |
| Pump housing<br>material | Hard Plastic (ABS) | Hard Plastic (ABS) | Equivalent |
| Sleeve orientation | Left and right sleeves are<br>different. Indicated on<br>sleeve. | Left and right sleeves are<br>different. Indicated on<br>sleeve | Equivalent |
| LED indicator | Yes<br>(Blue & Yellow) | Yes<br>(Yellow) | Equivalent in both<br>having a LED<br>indicator; (Plexus<br>has two colors to<br>provide visual aid on<br>power and alarm<br>status) |
| Alarm<br>communications | Audible and Visual | Audible and Visual | Equivalent: only<br>different in color<br>and duration of the<br>alarm |
| Alarm modes | Pressure error, low battery<br>error, charging error | Pressure error, low battery<br>error, charging error | Equivalent |
| Operating time | 16 hours continuous for a<br>single charge | 8 hours continuous for a<br>single charge | Equivalent;<br>RP100/Plexus has a<br>longer operating<br>time |
| Storage | -25-70°C, | -25-70°C, | Equivalent |
| Requirements | <93% relative humidity (RH) | <93% relative humidity (RH) | |
| Operating<br>requirements | +5°C to 40°C<br>(41°F to 104°F),<br>15%-93% RH | +5°C to 40°C<br>(41°F to 104°F),<br>15%-93% RH | Equivalent |
{7}------------------------------------------------
Image /page/7/Picture/0 description: The image is a company logo for Alleva Medical LTD. The logo includes the company name and address. The address is Suite M-Q, 12th Floor, Kings Wing Plaza 2, 1 On Kwan St. Shek Mun, Shatin, N.T., Hong Kong. The phone number is +852 3166 7200, the fax number is +852 2355 7663, and the website is www.allevamedical.com.
## Conclusions
The Plexus RP100 device has the same intended use and performance characteristics as the predicate device. The results of non-clinical testing demonstrate that the device met all performance requirements and that the subject device is substantially equivalent to the predicate device.
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.