DIAMONDBACK 360 Peripheral Orbital Atherectomy System, DIAMONDBACK 360 Peripheral Orbital Atherectomy System, Exchangeable Series, Stealth 360 Peripheral Orbital Atherectomy System
K220109 · Cardiovascular Systems, Inc. · MCW · Mar 1, 2022 · Cardiovascular
Device Facts
Record ID
K220109
Device Name
DIAMONDBACK 360 Peripheral Orbital Atherectomy System, DIAMONDBACK 360 Peripheral Orbital Atherectomy System, Exchangeable Series, Stealth 360 Peripheral Orbital Atherectomy System
Applicant
Cardiovascular Systems, Inc.
Product Code
MCW · Cardiovascular
Decision Date
Mar 1, 2022
Decision
SESE
Submission Type
Special
Regulation
21 CFR 870.4875
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Diamondback 360® Peripheral Orbital Atherectomy System is a percutaneous orbital atherectomy system indicated for use as therapy in patients with occlusive atherosclerotic disease in peripheral arteries and who are acceptable candidates for percutaneous transluminal atherectomy. The OAS supports removal of stenotic from artificial arteriovenous dialysis fistulae (AV shunt). The system is a percutaneous orbital atherectomy system indicated as a therapy in patients with occluded hemodialysis grafts who are acceptable candidates for percutaneous transluminal angioplasty. Stealth 360® Peripheral Orbital Atherectomy System The Stealth 360® Peripheral Orbital Atherectomy System is a percutaneous orbital atherectomy system indicated for use as therapy in patients with occlusive atherosclerotic disease in peripheral arteries and who are acceptable candidates for percutaneous transluminal atherectomy. The OAS supports removal of stenotic material from artificial arteriovenous dialysis fistulae (AV shunt). The system is a percutaneous orbital atherectomy system indicated as a therapy in patients with occluded hemodialysis grafts who are acceptable candidates for percutaneous transluminal angioplasty. The Diamondback 360® Peripheral Orbital Atherectomy System Exchangeable Series is a percutaneous orbital atherectomy system indicated for use as therapy in patients with occlusive atherosclerotic disease in peripheral arteries and who are acceptable candidates for percutaneous transluminal atherectomy. The Exchangeable Series OAS supports removal of stenotic material from artificial arteriovenous dialysis fistulae (AV shunt). The system is a percutaneous orbital atherectomy system indicated as a therapy in patients with occluded hemodialysis grafts who are acceptable candidates for percutaneous transluminal angioplasty.
Device Story
Percutaneous orbital atherectomy system; removes/reduces occlusive material in peripheral arteries and AV dialysis fistulae. Components: reusable saline pump; single-use orbital atherectomy device (OAD) with physician-operated handle and interchangeable crown cartridge; single-use lubricant; single-use guide wire. Operation: rapidly rotating, diamond-coated, eccentrically mounted crown; centrifugal force presses crown against calcified plaque; differential and bi-directional sanding reduces plaque and increases orbit diameter. Used in clinical settings by physicians. Output: physical removal of stenotic material; restores luminal patency. Benefits: improved blood flow in peripheral arteries and dialysis access sites.
Clinical Evidence
Bench testing only; no clinical data required as software updates do not affect device performance or hardware.
Technological Characteristics
Orbital atherectomy system; diamond-coated, eccentrically mounted crown; centrifugal force/orbital rotation mechanism. Components: reusable saline pump, single-use OAD, lubricant, guide wire. Software updated for cybersecurity. Non-patient contacting hypotube/coupler added to Exchangeable Series. Sterilization: standard method (SAL maintained).
Indications for Use
Indicated for patients with occlusive atherosclerotic disease in peripheral arteries or occluded hemodialysis grafts/AV fistulae who are candidates for percutaneous transluminal atherectomy or angioplasty.
Regulatory Classification
Identification
An intraluminal artery stripper is a device used to perform an endarterectomy (removal of plaque deposits from arterisclerotic arteries.)
Predicate Devices
DIAMONDBACK 360® and Stealth 360® Peripheral Orbital Atherectomy Systems (K190634)
DIAMONDBACK 360® Peripheral Orbital Atherectomy System Exchangeable Series (K182397)
Submission Summary (Full Text)
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March 1, 2022
Cardiovascular Systems Inc. Nikita Basandra Regulatory Affairs Manager 1225 Old Highway 8 NW Saint Paul, Minnesota 55112
### Re: K220109
Trade/Device Name: DIAMONDBACK 360® Peripheral Orbital Atherectomy System, DIAMONDBACK 360® Peripheral Orbital Atherectomy System, Exchangeable Series, Stealth 360® Peripheral Orbital Atherectomy System Regulation Number: 21 CFR 870.4875 Regulation Name: Intraluminal artery stripper Regulatory Class: Class II Product Code: MCW Dated: January 12, 2022 Received: January 13, 2022
Dear Nikita Basandra:
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
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statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Gregory O'Connell Assistant Director DHT2C: Division of Coronary and Peripheral Intervention Devices OHT2: Office of Cardiovascular 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) K220109
Device Name
Diamondback 360® Peripheral Orbital Atherectomy System
Indications for Use (Describe)
The Diamondback 360® Peripheral Orbital Atherectomy System is a percutaneous orbital atherectomy system indicated for use as therapy in patients with occlusive atherosclerotic disease in peripheral arteries and who are acceptable candidates for percutaneous transluminal atherectomy.
The OAS supports removal of stenotic from artificial arteriovenous dialysis fistulae (AV shunt). The system is a percutaneous orbital atherectomy system indicated as a therapy in patients with occluded hemodialysis grafts who are acceptable candidates for percutaneous transluminal angioplasty.
| Type of Use (Select one or both, as applicable) | |
|-------------------------------------------------|----------------------------------------------|
| | Prescription Use (Part 21 CFR 801 Subpart D) |
| | Over-The-Counter Use (21 CFR 801 Subpart C) |
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## Indications for Use
510(k) Number (if known) K220109
Device Name Stealth 360® Peripheral Orbital Atherectomy System
Indications for Use (Describe)
The Stealth 360® Peripheral Orbital Atherectorny System is a percutaneous orbital atherectomy system indicated for use as therapy in patients with occlusive atherosclerotic disease in peripheral arteries and who are acceptable candidates for percutaneous transluminal atherectomy.
The OAS supports removal of stenotic material from artificial arteriovenous dialysis fistulae (AV shunt). The system is a percutaneous orbital atherectomy system indicated as a therapy in patients with occluded hemodialysis grafts who are acceptable candidates for percutaneous transluminal angioplasty.
| Type of Use (Select one or both, as applicable) | |
|-------------------------------------------------|-----------------------------------------------|
| ☑ 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."
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# Indications for Use
510(k) Number (if known) K220109
Device Name
Diamondback 360® Peripheral Orbital Atherectomy System Exchangeable Series
Indications for Use (Describe)
The Diamondback 360® Peripheral Orbital Atherectomy System Exchangeable Series is a percutaneous orbital atherectomy system indicated for use as therapy in patients with occlusive atherosclerotic disease in peripheral arteries and who are acceptable candidates for percutaneous transluminal atherectomy.
The Exchangeable Series OAS supports removal of stenotic material from artificial arteriovenous dialysis fistulae (AV shunt). The system is a percutaneous orbital atherectomy system indicated as a therapy in patients with occluded hemodialysis grafts who are acceptable candidates for percutaneous transluminal angioplasty.
| Type of Use (Select one or both, as applicable) | |
|-----------------------------------------------------------------------------------|----------------------------------------------------------------------------------|
| <div> <span> ☑ Prescription Use (Part 21 CFR 801 Subpart D) </span> </div> | <div> <span> ☐ Over-The-Counter Use (21 CFR 801 Subpart C) </span> </div> |
### CONTINUE ON A SEPARATE PAGE IF NEEDED.
This section applies only to requirements of the Paperwork Reduction Act of 1995.
#### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff(@fda.hhs.gov
"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."
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Image /page/5/Picture/0 description: The image shows the logo for Cardiovascular Systems, Inc. The logo consists of the letters "CSI" in a bold, sans-serif font, with a green arc underneath. To the right of the letters, separated by a vertical line, is the company name "CARDIOVASCULAR SYSTEMS, INC." in a smaller, sans-serif font.
#### l 510(K) SUMMARY (K220109)
| Submitter: | Cardiovascular Systems, Inc.<br>1225 Old Highway 8 NW<br>Saint Paul, MN 55112 |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Contact<br>Person: | Nikita Basandra<br>Regulatory Affairs Manager<br>Cardiovascular Systems, Inc.<br>1225 Old Highway 8 NW<br>Saint Paul, MN 55112<br>Ph: 651-259-8206<br>nbasandra@csi360.com |
| Date<br>Prepared: | January 20, 2022 |
| Trade<br>Name: | • DIAMONDBACK 360 Peripheral Orbital Atherectomy System<br>• DIAMONDBACK 360 Peripheral Orbital Atherectomy System<br>Exchangeable Series<br>• Stealth 360 Peripheral Orbital Atherectomy System |
| Common<br>Name: | Intraluminal Artery Stripper |
| Regulation<br>Number: | 21 CFR 870.4875 |
| Classification: | Class II |
| Product<br>Code: | MCW |
| Predicate<br>Device(s): | • K190634 - DIAMONDBACK 360® and Stealth 360® Peripheral Orbital<br>Atherectomy Systems (Cardiovascular Systems, Inc.)<br>• K182397 - DIAMONDBACK 360® Peripheral Orbital Atherectomy<br>System Exchangeable Series |
| Device<br>Description: | The DIAMONDBACK 360 Peripheral OAS, Stealth 360 Peripheral OAS, and<br>DIAMONDBACK 360 OAS Exchangeable Series are designed to remove or<br>reduce occlusive material and restore luminal patency by using an orbiting,<br>diamond-coated, eccentrically mounted crown. Each OAS consists of the<br>following main components:<br>1. Reusable Saline Pump (provided non-sterile)<br>2. Single-use Orbital Atherectomy Device (OAD)<br>(provided sterile). The Exchangeable Series OAD |
| consists of a physician-operated handle and an<br>interchangeable crown cartridge.<br>3. Single-use Atherectomy lubricant (provided sterile)<br>4. Single-use Atherectomy guide wire (provided sterile) | |
| Mechanism of Action<br>The Diamondback, Stealth, and Exchangeable Series OAS mechanism of<br>action is identical to the predicate device and is defined by: | |
| • Centrifugal force<br>• Orbital rotation<br>• Differential sanding<br>• Bi-directional sanding | |
| The rapidly rotating eccentric crown creates a centrifugal force that presses the<br>diamond-coated crown against the calcified plaque. With each pass of the<br>crown, plaque is reduced and the diameter of the orbit increases. | |
| Intended<br>Use: | The Diamondback 360® Peripheral Orbital Atherectomy System<br>The Diamondback 360® Peripheral Orbital Atherectomy System is a<br>percutaneous orbital atherectomy system indicated for use as therapy in<br>patients with occlusive atherosclerotic disease in peripheral arteries and<br>who are acceptable candidates for percutaneous transluminal<br>atherectomy. |
| | The OAS supports removal of stenotic material from artificial arteriovenous<br>dialysis fistulae (AV shunt). The system is a percutaneous orbital<br>atherectomy system indicated as a therapy in patients with occluded<br>hemodialysis grafts who are acceptable candidates for percutaneous<br>transluminal angioplasty. |
| | Stealth 360® Peripheral Orbital Atherectomy System<br>The Stealth 360® Peripheral Orbital Atherectomy System is a<br>percutaneous orbital atherectomy system indicated for use as therapy in<br>patients with occlusive atherosclerotic disease in peripheral arteries and<br>who are acceptable candidates for percutaneous transluminal<br>atherectomy. |
| | The OAS supports removal of stenotic material from artificial arteriovenous<br>dialysis fistulae (AV shunt). The system is a percutaneous orbital<br>atherectomy system indicated as a therapy in patients with occluded |
| | hemodialysis grafts who are acceptable candidates for percutaneous<br>transluminal angioplasty. |
| | Diamondback 360® Peripheral Orbital Atherectomy System Exchangeable<br>Series |
| | The Diamondback 360® Peripheral Orbital Atherectomy System<br>Exchangeable Series is a percutaneous orbital atherectomy system<br>indicated for use as therapy in patients with occlusive atherosclerotic<br>disease in peripheral arteries and who are acceptable candidates for<br>percutaneous transluminal atherectomy. |
| | The Exchangeable Series OAS supports removal of stenotic material from<br>artificial arteriovenous dialysis fistulae (AV shunt). The system is a<br>percutaneous orbital atherectomy system indicated as a therapy in patients<br>with occluded hemodialysis grafts who are acceptable candidates for<br>percutaneous transluminal angioplasty. |
| Comparison<br>to Predicate<br>Device: | The modified Diamondback 360® [Stealth 360®] Peripheral Orbital<br>Atherectomy System [Exchangeable Series] devices are identical to the<br>predicate devices as follows:<br>Same regulation number, product code and classification Same intended use and indications for use Same vessel diameter range and anatomic location of use Same design and materials Same hardware Same principles of operation Same sterilization method and SAL Same number of uses per device (single use) Same performance specifications The modified devices are different from the predicate device in that the<br>software has been updated to include additional cybersecurity protection.<br>Also, a hypotube was added to the Exchangeable driveshaft and a coupler was<br>updated to accommodate the change. The hypotube and coupler are located<br>within a fully enclosed, non-patient contacting portion of the device inside the<br>cartridge. The driveshaft continues to be identical in length, material, filar<br>count, tip, and crown to the predicate driveshaft. |
| Functional<br>and Safety<br>Testing: | Only software verification and associated testing was required as the software<br>updates do not affect the device performance and hardware. |
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Image /page/6/Picture/0 description: The image contains the logo for Cardiovascular Systems, Inc. The logo consists of the letters "CSI" in a bold, sans-serif font, with a green arc underneath the "S" and "I". To the right of the letters, there is a vertical line separating the letters from the words "CARDIOVASCULAR SYSTEMS, INC.", which are stacked on top of each other in a smaller, sans-serif font.
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Image /page/7/Picture/0 description: The image shows the logo for Cardiovascular Systems, Inc. The logo consists of the letters "CSI" in a stylized font, with a green arc underneath. To the right of the letters is a vertical line, followed by the words "CARDIOVASCULAR SYSTEMS, INC." in a smaller, sans-serif font. The logo is simple and modern, and the use of green suggests a focus on health and wellness.
This confidential document is the property of Cardiovascular Systems, Inc. and shall not be reproduced, disclosed or used without the express written consent of Cardiovascular Systems, Inc.
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Image /page/8/Picture/0 description: The image shows the logo for Cardiovascular Systems, Inc. The logo consists of the letters "CSI" in a gray, sans-serif font, with a green arc underneath the letters. To the right of the letters is a vertical line, followed by the words "CARDIOVASCULAR SYSTEMS, INC." in a smaller, gray, sans-serif font. The logo is simple and modern, and it is likely used to represent the company's brand.
The hypotube/coupler update does not impact the functionality of the device to ablate the lesion nor its intended use. The subject devices are substantially equivalent to the predicate devices and Conclusion: the devices continue to perform as intended.
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.