K183320 · St. Jude Medical (Now Abbott Medical) · NQQ · Apr 2, 2019 · Radiology
Device Facts
Record ID
K183320
Device Name
Ilumien Optis, Optis Integrated, Optis Mobile
Applicant
St. Jude Medical (Now Abbott Medical)
Product Code
NQQ · Radiology
Decision Date
Apr 2, 2019
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 892.1560
Device Class
Class 2
Attributes
Real-World Evidence
Real-World Evidence
Submission
Device
Sponsor
RWD Sources
RWE Use Summary
Key Tags
K183320 · Apr 2, 2019
Ilumien Optis, Optis Integrated, Optis Mobile
St. Jude Medical (Now Abbott Medical)
Prospective clinical study of real-world patients
A prospective study was performed to determine the diagnostic utility of RFR for the physiological assessment of coronary artery disease in real-world patients, demonstrating equivalence between RFR and iFR.
RFR; iFR; diagnostic utility; real-world patients
Clinical Evidence
Study Design
Population
Comparator
Key Endpoints
RFR Validation Study; Prospective study
Real-world patients undergoing physiological assessment of coronary artery disease
The OPTIS imaging system with a compatible Dragonfly™ imaging catheter is intended for the imaging of coronary arteries and is indicated in patients who are candidates for transluminal interventional procedures. The compatible Dragonfly™ imaging catheters are intended for use in vessels 2.0 to 3.5 mm in diameter. The compatible Dragonfly™ imaging catheters are not intended for use in the left main coronary artery or in a target vessel which has undergone a previous bypass procedure. The OPTIS imaging system is intended for use in the catheterization and related cardiovascular specialty laboratories and will further compute and display various physiological parameters based on the output from one or more electrodes, transducers, or measuring devices. The physician may use the acquired physiological parameters, along with knowledge of patient history, medical expertise and clinical judgment to determine if therapeutic intervention is indicated.
Device Story
OPTIS imaging system performs Optical Coherence Tomography (OCT), Fractional Flow Reserve (FFR), and Resting Full-cycle Ratio (RFR) procedures; used in catheterization and cardiovascular specialty laboratories by physicians. System inputs include OCT imaging data from Dragonfly catheters and pressure signals from transducers; processes signals to compute physiological parameters (FFR, RFR, Pd/Pa at rest). Output displayed on system monitor; assists physicians in assessing coronary lesion severity and determining need for therapeutic intervention. Benefits include improved diagnostic assessment of coronary artery disease without requiring hyperemic agents in all cases.
Clinical Evidence
Prospective study evaluated diagnostic utility of RFR in real-world patients. Results demonstrated equivalence between RFR and iFR. RFR-FFR hybrid method showed 93.6% diagnostic accuracy (91.1-95.6% CI) compared to 92.2% (89.5-94.4% CI) for iFR-FFR. Positive agreement 91.3% vs 88.8%; negative agreement 95.8% vs 95.4%.
Technological Characteristics
System performs OCT, FFR, and RFR. Uses Dragonfly imaging catheters. Software-based computation of physiological parameters from pressure transducers and electrodes. Connectivity via catheter interface to OPTIS console. Software version E.5.
Indications for Use
Indicated for patients who are candidates for transluminal interventional procedures requiring coronary artery imaging (vessels 2.0-3.5 mm diameter). Contraindicated for use in the left main coronary artery or target vessels with previous bypass procedures.
Regulatory Classification
Identification
An ultrasonic pulsed echo imaging system is a device intended to project a pulsed sound beam into body tissue to determine the depth or location of the tissue interfaces and to measure the duration of an acoustic pulse from the transmitter to the tissue interface and back to the receiver. This generic type of device may include signal analysis and display equipment, patient and equipment supports, component parts, and accessories.
Special Controls
*Classification.* Class II (special controls). A biopsy needle guide kit intended for use with an ultrasonic pulsed echo imaging system only is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 892.9.
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April 2, 2019
Abbott Medical Steve Vitale Regulatory Project Manager One St. Jude Medical Drive St. Paul, Minnesota 55117
Re: K183320
Trade/Device Name: ILUMIEN OPTIS. OPTIS Integrated, OPTIS Mobile with AptiVue Software version E.5 Regulation Number: 21 CFR 892.1560 Regulation Name: Ultrasonic Pulsed Echo Imaging System Regulatory Class: Class II Product Code: NOO Dated: March 7, 2019 Received: March 8, 2019
Dear Steve Vitale:
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 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
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devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/CombinationProducts/GuidanceRegulatoryInformation/ucm597488.html; 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 http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/) and CDRH Learn (http://www.fda.gov/Training/CDRHLearn). 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 (http://www.fda.gov/DICE) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely
Sincerely,
for
Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K183320
#### Device Name
ILUMIEN OPTIS, OPTIS Integrated, OPTIS Mobile with AptiVue Software version E.5
#### Indications for Use (Describe)
The OPTIS imaging system with a compatible Dragonfly™ imaging catheter is intended for the imaging of coronary arteries and is indicated in patients who are candidates for transluminal procedures. The compatible Dragonfly™ imaging catheters are intended for use in vessels 2.0 to 3.5 mm in diameter. The compatible Dragonfly™ imaging catheters are not intended for use in the left main coronary artery or in a target vessel which has undergone a previous bypass procedure.
The OPTIS imaging system is intended for use in the catheterization and related cardiovascular specialty laboratories and will further compute and display various physiological parameters based on the output from one or more electrodes, transducers, or measuring devices. The physician may use the acquired physiological parameters, along with knowledge of patient history, medical expertise and clinical judgment to determine if therapeutic intervention is indicated.
| 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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| 510(k) Summary | |
|---------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Per 21 CFR §807.92 | |
| 510(k) Number | K183320 |
| Date Prepared | 27 November 2018 |
| Submitter Name &<br>Address | St. Jude Medical<br>One St. Jude Medical Drive<br>St. Paul, MN 55117 |
| Contact Person | Steve Vitale<br>Regulatory Affairs Specialist<br>Phone: (651) 756-2420<br>Fax: (651) 756-3301<br>Email: steve.vitale@abbott.com |
| Alternative Contact<br>Person | Marlene Peterson<br>Senior Regulatory Affairs Manager<br>Phone: (651) 756-3268<br>Fax: (651) 756-3301<br>Email: marlene.peterson@abbott.com |
| Proprietary/Trade<br>Name | ILUMIEN OPTIS, OPTIS Integrated, OPTIS Mobile with AptiVue Software version E.5 |
| Common/Usual Name | OPTIS or OPTIS Systems |
| Product Classification<br>Code | Product Code: NQQ |
| Product Regulation<br>Number and Name | 21 CFR 892.1560 |
| Device Class | II |
| Predicate Device | Primary: OPTIS Systems with E.4 Software (K160878), cleared 29 June 2016<br>Secondary: Volcano iFR® Modality (K133323), cleared 14 March 2014 |
| Device Description | OPTISTM with AptiVueTM Software (version E.5) perform Optical Coherence<br>Tomography (OCT), Fractional Flow Reserve (FFR), and Resting Full-cycle Ratio<br>(RFR) procedures and provide images of the coronary arteries in patients who are<br>candidates for transluminal interventional procedures. FFR, Pd/Pa at rest, and RFR<br>physiological waveforms measured by the system are used to assess the severity of a<br>coronary lesion by measuring the pressure drop across the lesion (distal vs proximal<br>pressure). |
| Indications for Use/<br>Intended Use | The OPTIS imaging system with a compatible DragonflyTM imaging catheter is intended<br>for the imaging of coronary arteries and is indicated in patients who are candidates for<br>transluminal interventional procedures. The compatible DragonflyTM imaging catheters<br>are intended for use in vessels 2.0 to 3.5 mm in diameter. The compatible DragonflyTM<br>imaging catheters are not intended for use in the left main coronary artery or in a target<br>vessel which has undergone a previous bypass procedure.<br>The OPTIS imaging system is intended for use in the catheterization and related<br>cardiovascular specialty laboratories and will further compute and display various<br>physiological parameters based on the output from one or more electrodes, transducers,<br>or measuring devices. The physician may use the acquired physiological parameters,<br>along with knowledge of patient history, medical expertise and clinical judgment to<br>determine if therapeutic intervention is indicated. |
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| Features | OPTIST™ Systems with AptiVue™ Version E.5 Software (Proposed Device) | OPTIST™ Systems with version E.4 Software (K160878) (Predicate Device) |
|--------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Intended Use | The AptiVue™ E-series software is intended for use only with compatible OPTIST™ imaging systems. OPTIST™ imaging systems are intended for use in the catheterization and related cardiovascular specialty laboratories. | The AptiVue™ E-series software is intended for use only with compatible OPTIST™ imaging systems. OPTIST™ imaging systems are intended for use in the catheterization and related cardiovascular specialty laboratories. |
| Indications for Use/ Intended Use | The OPTIS imaging system with a compatible Dragonfly™ imaging catheter is intended for the imaging of coronary arteries and is indicated in patients who are candidates for transluminal interventional procedures. The compatible Dragonfly™ imaging catheters are intended for use in vessels 2.0 to 3.5 mm in diameter. The compatible Dragonfly™ imaging catheters are not intended for use in the left main coronary artery or in a target vessel which has undergone a previous bypass procedure. The OPTIS imaging system is intended for use in the catheterization and related cardiovascular specialty laboratories and will further compute and display various physiological parameters based on the output from one or more electrodes, transducers, or measuring devices. The physician may use the acquired physiological parameters, along with knowledge of patient history, medical expertise and clinical judgment to determine if therapeutic intervention is indicated | The OPTIS imaging system with Dragonfly™ DUO or Dragonfly™ OPTIST™ Imaging Catheter is intended for the imaging of coronary arteries and is indicated in patients who are candidates for transluminal interventional procedures. The Dragonfly™ DUO or Dragonfly™ OPTIST™ Imaging Catheter is intended for use in vessels 2.0 to 3.5 mm in diameter. The Dragonfly™ DUO or Dragonfly™ OPTIST™ Imaging Catheter is not intended for use in the left main coronary artery or in a target vessel which has undergone a previous bypass procedure. The OPTIS imaging system will further acquire radio frequency signal outputs from both a distal intracoronary pressure transducer and a proximal aortic pressure transducer to determine the physiological parameter, Fractional Flow Reserve (FFR). The physician may use the FFR parameter, along with knowledge of patient history, medical expertise and clinical judgment to determine if therapeutic intervention is indicated |
| Measurement<br>& Display | OCT recordings, FFR, Pd/Pa at<br>rest, and RFR physiological | OCT recordings, FFR and Pd/Pa<br>at rest physiological waveforms |
| Features | waveforms | |
| Table 2: OPTIST™ compared to Predicate (K133323) | | |
| Features | OPTIST™ Systems with AptiVue™<br>Version E.5 Software (Proposed<br>Device) | Volcano iFR® Modality - K133323<br>(Predicate Device) |
| Intended<br>Use | The AptiVue™ E-series software<br>is intended for use only with<br>compatible OPTIST™ imaging<br>systems. OPTIST™ imaging<br>systems are intended for use in the<br>catheterization and related<br>cardiovascular specialty<br>laboratories. | The Volcano<br>s5TM/s5i/CORE/CORETM Mobile<br>Precision Guided Therapy System is<br>used for the qualitative and<br>quantitative evaluation of vascular<br>morphology in the coronary arteries<br>and vessels of the peripheral<br>vasculature. It is also indicated as an<br>adjunct to conventional angiographic<br>procedures to provide an image of<br>vessel lumen and wall structures. |
| | | The pressure feature is intended for<br>use in all blood vessels, including<br>coronary and peripheral arteries, to<br>measure intravascular blood pressure<br>during diagnostic angiography and/or<br>interventional procedures |
| Indications<br>for Use | The OPTIS imaging system with a<br>compatible Dragonfly™ imaging<br>catheter is intended for the<br>imaging of coronary arteries and is<br>indicated in patients who are<br>candidates for transluminal<br>interventional procedures. The<br>compatible Dragonfly™ imaging<br>catheters are intended for use in<br>vessels 2.0 to 3.5 mm in diameter.<br>The compatible Dragonfly™<br>imaging catheters are not intended<br>for use in the left main coronary<br>artery or in a target vessel which<br>has undergone a previous bypass<br>procedure.<br>The OPTIS imaging system is<br>intended for use in the<br>catheterization and related<br>cardiovascular specialty<br>laboratories and will further<br>compute and display various<br>physiological parameters based on<br>the output from one or more<br>electrodes, transducers, or<br>measuring devices. The physician<br>may use the acquired<br>physiological parameters, along<br>with knowledge of patient history,<br>medical expertise and clinical<br>judgment to determine if | The iFR® Modality of the<br>s5/sSiCORE/CORE Mobile Precision<br>Guided Therapy System is indicated in<br>all blood vessels, including coronary<br>and peripheral arteries, to measure<br>intravascular blood pressure during<br>diagnostic angiography and/or<br>interventional procedures.<br>The iFR® Modality is intended to be<br>used in conjunction with currently<br>marketed Volcano pressure wires. |
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| | | therapeutic intervention is indicated. | | |
|-------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------|-----------------------------|-------------------------|
| | Relevant<br>Display<br>Features | RFR resting full cycle ratio | iFR instant wave free ratio | |
| Summary on Non-<br>Clinical Testing | Verification and Validation testing were completed to demonstrate safety and effectiveness and ensure that the subject device performs as intended. Design verification and validation included the following: Software Verification and Validation - performed to ensure that the subject device meets requirements and functions as intended Usability Study - performed to evaluate the usability and possible use errors that may lead to patient safety issues with the introduction of the new features on the graphical user interface | | | |
| Summary of Clinical<br>Testing | No new clinical testing was completed, nor relied upon, in support of this Traditional 510(k). However, a prospective study was performed to determine the diagnostic utility of RFR for the physiological assessment of coronary artery disease in real world patients. The results of the study showed equivalence between resting full-cycle ratio (RFR) and instantaneous wave-free ratio (iFR).<br>RFR-FFR Hybrid Method Result Interpretation<br>The following gray zone and criteria for determining positive (ischemia causing) and negative (non-ischemia causing) were used for RFR result interpretation: RFR < 0.86: Positive (ischemia causing) 0.86 ≤ RFR ≤ 0.93: Gray zone, decision will be based on FFR FFR ≤ 0.8: Positive (ischemia causing) FFR > 0.8: Negative (non-ischemia causing) RFR > 0.93: Negative (non-ischemia causing) Summary of RFR Validation Study<br>The results of the study showed comparable diagnostic accuracy, percent positive agreement, percent negative agreement, PPV, and NPV values between the RFR-FFR and iFR-FFR hybrid approaches (reference Table 3). | | | |
| | | Table 3: Summary of RFR Validation Results | RFR-FFR | iFR-FFR |
| | | Diagnostic Accuracy | 93.6%<br>[91.1%, 95.6%] | 92.2%<br>[89.5%, 94.4%] |
| | | Percent Positive Agreement | 91.3%<br>[86.9%, 94.5%] | 88.8%<br>[84.1%, 92.5%] |
| | | Percent Negative Agreement | 95.8%<br>[92.6%, 97.9%] | 95.4%<br>[92.1%, 97.6%] |
| | | PPV | 95.2%<br>[91.6%, 97.6%] | 94.7%<br>[90.9%, 97.2%] |
| | | NPV | 92.3%<br>[88.4%, 95.1%] | 90.2%<br>[86.1%, 93.5%] |
| | | Diagnostic Accuracy Outside the Grey Zone | 88.5%<br>[84.1%, 92.0%] | 86.8%<br>[82.4%, 90.4%] |
| | | Lesions free from Hyperemic Agents | 55.5%<br>[51.0%, 59.9%] | 58.9%<br>[54.4%, 63.2%] |
| | | Patients free from Hyperemic Agents | 50.8%<br>[46.0%, 55.6%] | 54.3%<br>[49.5%, 59.1%] |
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| Statement of | OPTISTTM with AptiVueTM Version E.5 software is equivalent to the predicate OPTISTTM system (K160878) for intended use, operational characteristics, and fundamental design of the device. Changes to technological characteristics of the device do no raise different questions of safety or effectiveness |
|--------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Equivalence | OPTISTTM with AptiVueTM Version E.5 software is equivalent to the Philips' Volcano iFR® Modality (K133323) for the Resting Full-Cycle Ratio physiological index (see Table 2). |
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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.