ViewFlex™ Xtra ICE Catheter The ViewFlex™ Xtra ICE Catheter is indicated for use in adult and adolescent pediatric patients to visualize cardiac, structures, blood flow and other devices within the heart. ViewFlex™ Eco Reprocessed ICE Catheter The ViewFlex™ Eco Reprocessed Catheter is indicated for use in adult and adolescent pediatric patients to visualize cardiac structures, blood flow and other devices within the heart. Advisor™ HD Grid Mapping Catheter, Sensor Enabled™ The Advisor™ HD Grid Mapping Catheter, Sensor Enabled™, is indicated for multiple electrode electrophysiological mapping of cardiac structures in the heart, i.e., recording or stimulation only. This catheter is intended to obtain electrograms in the atrial and ventricular regions of the heart. Advisor™ HD Grid X Mapping Catheter, Sensor Enabled™ The Advisor™ HD Grid X Mapping Catheter, Sensor Enabled™, is indicated for multiple electrode electrophysiological mapping of cardiac structures in the heart, i.e., recording or stimulation only. This catheter is intended to obtain electrograms in the atrial and ventricular regions of the heart. Agilis™ NxT Steerable Introducer The Agilis™ NxT Steerable Introducer is indicated for the introduction of various cardiovascular catheters into the heart, including the left side of the heart, during the treatment of cardiac arrhythmias. Agilis™ NxT Steerable Introducer Dual-Reach™ The Agilis™ NxT Steerable Introducer Dual-Reach™ is indicated for the introduction of various cardiovascular catheters into the heart, including the left side of the heart, during the treatment of cardiac arrhythmias.
Device Story
Bundle of cardiac catheters and introducers for electrophysiology procedures; includes ICE catheters for intracardiac visualization, high-density mapping catheters for electrogram acquisition, and steerable introducers for catheter placement. ICE catheters input ultrasound signals to visualize cardiac structures/devices; mapping catheters input electrical signals via electrodes/magnetic sensors for 3D mapping; introducers provide mechanical access. Used in clinical settings by physicians. Output provides visual images or electrophysiological data to guide clinical decision-making during arrhythmia treatment. Benefits include improved visualization and navigation, potentially reducing fluoroscopy requirements.
Clinical Evidence
No new bench testing performed. Substantial equivalence supported by a summary of clinical data from multiple studies evaluating the use of these devices within zero/low fluoroscopy workflows using alternative visualization methods.
Indicated for adult and adolescent pediatric patients for cardiac visualization (ICE catheters), electrophysiological mapping/recording/stimulation (mapping catheters), or cardiovascular catheter introduction during arrhythmia treatment (introducers).
Regulatory Classification
Identification
An intravascular diagnostic catheter is a device used to record intracardiac pressures, to sample blood, and to introduce substances into the heart and vessels. Included in this generic device are right-heart catheters, left-heart catheters, and angiographic catheters, among others.
{0}
FDA U.S. FOOD & DRUG ADMINISTRATION
May 23, 2025
Abbott Medical
Adam Bakken
Senior Specialist, Regulatory Affairs
5050 Nathan Lane North
Plymouth, Minnesota 55442
Re: K251211
Trade/Device Name: ViewFlex™ Xtra ICE Catheter; ViewFlex™ Eco Reprocessed ICE Catheter; Advisor™ HD Grid Mapping Catheter, Sensor Enabled™; Advisor™ HD Grid X Mapping Catheter, Sensor Enabled™; Agilis™ NxT Steerable Introducer; Agilis™ NxT Steerable Introducer Dual-Reach™
Regulation Number: 21 CFR 870.1200
Regulation Name: Diagnostic Intravascular Catheter
Regulatory Class: Class II
Product Code: OBJ, OWQ, MTD, DYB
Dated: April 17, 2025
Received: April 18, 2025
Dear Adam Bakken:
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 (the 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 available 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.
U.S. Food & Drug Administration
10903 New Hampshire Avenue
Silver Spring, MD 20993
www.fda.gov
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K251211 - Adam Bakken
Page 2
Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device" (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).
Your device is also subject to, among other requirements, the Quality System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30, Design controls; 21 CFR 820.90, Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the QS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).
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 (reporting of medical device-related adverse events) (21 CFR Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reporting-combination-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 Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.
All medical devices, including Class I and unclassified devices and combination product device constituent parts are required to be in compliance with the final Unique Device Identification System rule ("UDI Rule"). The UDI Rule requires, among other things, that a device bear a unique device identifier (UDI) on its label and package (21 CFR 801.20(a)) unless an exception or alternative applies (21 CFR 801.20(b)) and that the dates on the device label be formatted in accordance with 21 CFR 801.18. The UDI Rule (21 CFR 830.300(a) and 830.320(b)) also requires that certain information be submitted to the Global Unique Device Identification Database (GUDID) (21 CFR Part 830 Subpart E). For additional information on these requirements, please see the UDI System webpage at https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance/unique-device-identification-system-udi-system.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 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-devices/medical-device-safety/medical-device-reporting-mdr-how-report-medical-device-problems.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medical-devices/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-devices/device-advice-comprehensive-regulatory-
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K251211 - Adam Bakken
Page 3
assistance/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,
# Aneesh S. Deoras -S
Aneesh Deoras
Assistant Director
Division of Cardiac Electrophysiology,
Diagnostics, and Monitoring Devices
Office of Cardiovascular Devices
Office of Product Evaluation and Quality
Center for Devices and Radiological Health
Enclosure
{3}
DEPARTMENT OF HEALTH AND HUMAN SERVICES
Food and Drug Administration
Indications for Use
Form Approved: OMB No. 0910-0120
Expiration Date: 07/31/2026
See PRA Statement below.
Submission Number (if known)
K251211
Device Name
ViewFlex™ Xtra ICE Catheter;
ViewFlex™ Eco Reprocessed ICE Catheter;
Advisor™ HD Grid Mapping Catheter, Sensor Enabled™;
Advisor™ HD Grid X Mapping Catheter, Sensor Enabled™;
Agilis™ NxT Steerable Introducer;
Agilis™ NxT Steerable Introducer Dual-Reach™
Indications for Use (Describe)
ViewFlex™ Xtra ICE Catheter
The ViewFlex™ Xtra ICE Catheter is indicated for use in adult and adolescent pediatric patients to visualize cardiac, structures, blood flow and other devices within the heart.
ViewFlex™ Eco Reprocessed ICE Catheter
The ViewFlex™ Eco Reprocessed Catheter is indicated for use in adult and adolescent pediatric patients to visualize cardiac structures, blood flow and other devices within the heart.
Advisor™ HD Grid Mapping Catheter, Sensor Enabled™
The Advisor™ HD Grid Mapping Catheter, Sensor Enabled™, is indicated for multiple electrode electrophysiological mapping of cardiac structures in the heart, i.e., recording or stimulation only. This catheter is intended to obtain electrograms in the atrial and ventricular regions of the heart.
Advisor™ HD Grid X Mapping Catheter, Sensor Enabled™
The Advisor™ HD Grid X Mapping Catheter, Sensor Enabled™, is indicated for multiple electrode electrophysiological mapping of cardiac structures in the heart, i.e., recording or stimulation only. This catheter is intended to obtain electrograms in the atrial and ventricular regions of the heart.
Agilis™ NxT Steerable Introducer
The Agilis™ NxT Steerable Introducer is indicated for the introduction of various cardiovascular catheters into the heart, including the left side of the heart, during the treatment of cardiac arrhythmias.
Agilis™ NxT Steerable Introducer Dual-Reach™
The Agilis™ NxT Steerable Introducer Dual-Reach™ is indicated for the introduction of various cardiovascular catheters into the heart, including the left side of the heart, during the treatment of cardiac arrhythmias.
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.
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{5}
Special 510(k) – Zero/Low Fluoroscopy Workflow
Attachment 12 – 510(k) Summary
Abbott
# ATTACHMENT 12 – 510(k) SUMMARY
| 510(k) Information | |
| --- | --- |
| 510(k) Number | K251211 |
| 510(k) Type | Bundled Special 510(k) |
| Date Prepared | 04-17-2025 |
| Submitter Information | |
| Manufacturer Name and Address | Abbott Medical
5050 Nathan Lane North
Plymouth, MN 55442
USA |
| Phone Number | 701-388-0504 |
| Contact Person | Adam Bakken
Senior Specialist, Regulatory Affairs |
| Device Information (ViewFlex) | |
| Trade Name | ViewFlex™ Xtra ICE Catheter |
| Common Name | ICE Catheter |
| Class | II |
| Classification Name | 21 CFR 870.1200, Diagnostic Intravascular Catheter |
| Product Code | OBJ |
| Predicate Device | ViewFlex™ Xtra ICE Catheter (K223077) |
| Device Description | The ViewFlex™ Xtra ICE catheter is a temporary intracardiac ultrasound catheter intended for use in patients to accurately visualize cardiac structures, blood flow and other devices within the heart when connected to a compatible intracardiac ultrasound console via the compatible ViewFlex™ Catheter Interface Module. Examples of the types of other devices that can be visualized include, and are not limited to, intracardiac catheters, septal occluders, delivery wires, delivery sheaths, sizing balloons and transseptal needles. The use of these images is limited to visualization with no direct or indirect diagnostic use. The ViewFlex™ Xtra ICE catheter has a useable length of 90 cm, with a 9 French (F) shaft with an ultrasound transducer. A 10F introducer is recommended for use with this catheter for insertion into the femoral or jugular veins. The catheter tip has four-directional deflection allowing for Left-Right and Posterior-Anterior deflection, with an angle of at least 120 degrees in each direction. |
| Indications for Use | The ViewFlex™ Xtra ICE Catheter is indicated for use in adult and adolescent pediatric patients to visualize cardiac, structures, blood flow and other devices within the heart |
K251211
{6}
Special 510(k) – Zero/Low Fluoroscopy Workflow
Attachment 12 – 510(k) Summary
Abbott
| 510(k) Information | |
| --- | --- |
| Device Information (ViewFlex) | |
| Trade Name | ViewFlex™ Eco Reprocessed ICE Catheter |
| Common Name | Reprocessed ICE Catheter |
| Class | II |
| Classification Name | 21 CFR 870.1200, Diagnostic Intravascular Catheter |
| Product Code | OWQ |
| Predicate Device | ViewFlex™ Eco Reprocessed ICE Catheter (K231588) |
| Device Description | The ViewFlex™ Eco Reprocessed ICE Catheter is a temporary intracardiac ultrasound catheter intended for use in patients to accurately visualize cardiac structures, blood flow and other devices within the heart when connected to a compatible intracardiac ultrasound console via the compatible ViewFlex™ Catheter Interface Module. Examples of the types of other devices that can be visualized include, and are not limited to, intracardiac catheters, septal occluders, delivery wires, delivery sheaths, sizing balloons and transseptal needles. The use of these images is limited to visualization with no direct or indirect diagnostic use. The ViewFlex™ Reprocessed Catheter has a useable length of 90 cm, with a 9 French (F) shaft with an ultrasound transducer. A 10F introducer is recommended for use with this catheter for insertion into the femoral or jugular veins. The catheter tip has four-directional deflection allowing for Left-Right and Posterior-Anterior deflection, with an angle of at least 120 degrees in each direction. |
| Indications for Use | The ViewFlex™ Eco Reprocessed Catheter is indicated for use in adult and adolescent pediatric patients to visualize cardiac structures, blood flow and other devices within the heart. |
| Device Information (Advisor HD Grid) | |
| Trade Name | Advisor™ HD Grid Mapping Catheter, Sensor Enabled™ |
| Common Name | Catheter, Intracardiac Mapping, High-Density Array |
| Class | II |
| Classification Name | 21 CFR 870.1220 Electrode recording catheter or electrode recording probe |
| Product Code | MTD |
| Predicate Device | Advisor™ HD Grid Mapping Catheter, Sensor Enabled™ (K202066) |
K251211
{7}
Special 510(k) – Zero/Low Fluoroscopy Workflow
Attachment 12 – 510(k) Summary
Abbott
| 510(k) Information | |
| --- | --- |
| Device Description | The Advisor™ HD Grid Mapping Catheter, Sensor Enabled™, is a sterile, single-use, irrigated, high-density mapping catheter with a 7.5F shaft and an 8F distal shaft deflectable section. It is available in a D-F bi-directional curve model that is deflected using the actuator located on the catheter handle. The catheter working length is 110 cm. The device consists of a paddle-shaped distal tip with 16 electrodes, two distal shaft ring electrodes, two magnetic sensors, polymer braided shaft, handle, fluid lumen extension with a luer, and an electrical connector. The Advisor HD Grid catheter also has an introducer tool intended to compress and guide the distal paddle into, and withdraw from, the hemostasis valve of an introducer sheath. |
| Indications for Use | The Advisor™ HD Grid Mapping Catheter, Sensor Enabled™, is indicated for multiple electrode electrophysiological mapping of cardiac structures in the heart, i.e., recording or stimulation only. This catheter is intended to obtain electrograms in the atrial and ventricular regions of the heart. |
| Device Information (Advisor HD Grid X) | |
| Trade Name | Advisor™ HD Grid X Mapping Catheter, Sensor Enabled™ |
| Common Name | Catheter, Intracardiac Mapping, High-Density Array |
| Class | II |
| Classification Name | 21 CFR 870.1220 Electrode recording catheter or electrode recording probe |
| Product Code | MTD |
| Predicate Device | Advisor™ HD Grid X Mapping Catheter, Sensor Enabled™ (K241372) |
| Device Description | The Advisor™ HD Grid X Mapping Catheter, Sensor Enabled™ (Grid X), is a sterile, single-use, irrigated high-density mapping catheter that is a diagnostic catheter for performing electrophysiology-mapping procedures and provides pacing signals to the heart.
A single Grid X model is offered with a 7.5F shaft and an 8F distal shaft deflectable section. It is available in a D-F bi-directional curve model that is deflected using the actuator located on the catheter handle. The catheter working length is 110 cm. The device consists of a paddle-shaped distal tip with 16 electrodes, with two reference electrodes placed proximal to the paddle on the distal end of the catheter shaft. The catheter also includes a 6DOF (degree of freedom) sensor capability for the shaft through the use of two magnetic sensors located at the distal end of the shaft, as well as independent 5DOF sensor capability for the paddle through an additional two magnetic sensors located in the distal end of the outer paddle splines. The electrode spacing is such that multiple bi-pole pairs can be created to support acquisition of additional mapping points. The catheter design includes irrigation at the proximal end of the paddle. The Grid X catheter also has an insertion tool intended to compress and guide the distal paddle into, and withdraw from, the hemostasis valve of an introducer sheath. |
K251211
Page 3 of 5
{8}
Special 510(k) – Zero/Low Fluoroscopy Workflow
Attachment 12 – 510(k) Summary
Abbott
| 510(k) Information | |
| --- | --- |
| Indications for Use | The Advisor™ HD Grid X Mapping Catheter, Sensor Enabled™, is indicated for multiple electrode electrophysiological mapping of cardiac structures in the heart, i.e., recording or stimulation only. This catheter is intended to obtain electrograms in the atrial and ventricular regions of the heart. |
| Device Information (Agilis™ NxT Steerable Introducer) | |
| Trade Name | Agilis™ NxT Steerable Introducer |
| Common Name | Introducer, Catheter |
| Class | II |
| Classification Name | 21 CFR 870.1340 Introducer, Catheter |
| Product Code | DYB |
| Predicate Device | Agilis™ NxT Steerable Introducer (K061363) |
| Device Description | The Agilis™ NxT Steerable Introducer consists of a dilator, guidewire, and a bi-directional steerable introducer, which is designed to provide flexible catheter positioning in the cardiac anatomy. The steerable introducer is fitted with a hemostasis valve to minimize blood loss during catheter introduction and/or exchange. A sideport with three-way stopcock is provided for air or blood aspiration, fluid infusion, blood sampling and pressure monitoring. The device has either a small, medium, or large curl at the distal tip. The sheath handle is equipped with a rotating collar to deflect the tip clockwise ≥ 180° and counterclockwise ≥ 90°. The steerable introducer features distal vent holes to facilitate aspiration and minimize cavitation and a radiopaque tip marker to improve fluoroscopic visualization. The sheath material consists of braided stainless-steel wire covered with Pebax (polyether block amide) and Nylon. The sheath is filled with barium sulfate and the distal tip has a platinum/iridium marker for visualization under fluoroscopy. A plastic dilator and stainless-steel guidewire are packaged with the introducer and are designed to facilitate the introduction and passage of the introducer through the vasculature. |
| Indications for Use | The Agilis™ NxT Steerable Introducer is indicated for the introduction of various cardiovascular catheters into the heart, including the left side of the heart, during the treatment of cardiac arrhythmias. |
| Device Information (Agilis™ NxT Steerable Introducer Dual-Reach) | |
| Trade Name | Agilis™ NxT Steerable Introducer Dual-Reach™ |
| Common Name | Introducer, Catheter |
| Class | II |
| Classification Name | 21 CFR 870.1340 Introducer, Catheter |
| Product Code | DYB |
| Predicate Device | Agilis™ NxT Steerable Introducer Dual-Reach™ (K243493) |
K251211
Page 4 of 5
{9}
Special 510(k) – Zero/Low Fluoroscopy Workflow
Attachment 12 – 510(k) Summary
Abbott
| 510(k) Information | |
| --- | --- |
| Device Description | The Agilis™ NxT Steerable Introducer Dual-Reach™ is a sterile, single-use device that consists of a dilator and steerable introducer, which is designed to provide flexible catheter positioning in the cardiac anatomy. The inner diameter of the steerable introducer is 13F. The steerable introducer includes a hemostasis valve to minimize blood loss during catheter introduction and/or exchange. It has a sideport with three-way stopcock for air or blood aspiration, fluid infusion, blood sampling, and pressure monitoring. The handle is equipped with a rotating collar to deflect the tip clockwise ≥180° and counterclockwise ≥90°. The steerable introducer features distal vent holes to facilitate aspiration and minimize cavitation and a radiopaque tip marker to improve fluoroscopic visualization. |
| Indications for Use | The Agilis™ NxT Steerable Introducer Dual-Reach™ is indicated for the introduction of various cardiovascular catheters into the heart, including the left side of the heart, during the treatment of cardiac arrhythmias. |
| Predicate Comparison | |
| Comparison of Technological Characteristics | All technological characteristics are the same – no proposed changes between the subject and predicate devices. |
| Non-Clinical Testing Summary | Bench-testing was not necessary to validate the Clinical Workflow modifications. Substantial Equivalence of the subject devices to the predicate devices using the zero/low fluoroscopy workflow has been supported through a summary of clinical data across multiple studies in which investigators used alternative visualization methods. |
| Statement of Equivalence | The Agilis NxT™ Steerable Introducer Indications for Use statement was modified to clarify the conditions of use. The modifications to the Agilis™ NxT Steerable Introducer indications for use statement do not introduce a new intended use or raise different questions of safety or effectiveness.
The subject devices have the same intended use and technological characteristics as their respective predicate devices. Based on data provided in this pre-market notification, the subject devices are as safe and effective as their respective predicate devices and, therefore, are substantially equivalent to them. |
K251211
Page 5 of 5
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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.