This product is intended to be used to guide interventional devices for neurovascular therapy to a lesion or a procedural site for a percutaneous intravascular procedure in the neurovasculature. This product is also intended to be used for injection of contrast media. This product is intended for use only in the neurovasculature.
Device Story
FUBUKI XF Neurovascular Long Sheath is a single-lumen catheter system comprising a long sheath and dilator; designed for neurointerventional procedures. Device facilitates introduction of guidewires and therapeutic devices to neurovascular sites; enables contrast media injection. Used in clinical settings by trained physicians. Outer surface features hydrophilic coating for lubricity; inner lumen lined with fluoropolymer to reduce friction. System includes rotating hemostasis valve (RHV). Device is provided sterile via ethylene oxide. Operates as a mechanical conduit for interventional tools; provides physician with access to neurovascular lesions. Benefits include improved navigation and delivery of therapeutic devices during minimally invasive procedures.
Clinical Evidence
Bench testing only. Performance verified via visual inspection, air/liquid leakage, burst pressure, corrosion resistance, dimensional verification, kink resistance, radio-detectability, slidability, tensile strength, flowrate, power injection, tip flexibility, and torque strength. Biocompatibility testing performed per ISO 10993 (cytotoxicity, sensitization, irritation, systemic toxicity, hemocompatibility, pyrogenicity, and thrombogenicity).
Technological Characteristics
Single-lumen catheter (sheath and dilator). Materials: fluoropolymer inner liner, hydrophilic outer coating. Sterilization: Ethylene Oxide (ISO 11135-1). Shelf life: 3 years. Dimensions: 8Fr (2.70mm outer diameter, 0.090 inch inner diameter). Accessories: Rotating Hemostasis Valve (RHV).
Indications for Use
Indicated for patients requiring percutaneous intravascular neurovascular procedures; used to guide interventional devices to lesions or procedural sites and for contrast media injection. Intended for neurovascular use only.
Regulatory Classification
Identification
A percutaneous catheter is a device that is introduced into a vein or artery through the skin using a dilator and a sheath (introducer) or guide wire.
Predicate Devices
ASAHI FUBUKI 043 and ASAHI FUBUKI Guide Catheters (K141981)
Submission Summary (Full Text)
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March 24, 2022
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ASAHI INTECC Co., Ltd. % Cynthia Valenzuela Director, Regulatory Affairs ASAHI INTECC USA, Inc. 3002 Dow Avenue, Suite 212 Tustin, California 92780
Re: K213589
Trade/Device Name: FUBUKI XF Neurovascular Long Sheath Regulation Number: 21 CFR 870.1250 Regulation Name: Percutaneous catheter Regulatory Class: Class II Product Code: OJP, DOY Dated: February 18, 2022 Received: February 22, 2022
Dear Cynthia Valenzuela:
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 medical devices and radiation-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,
Naira Muradyan, Ph.D. Assistant Director DHT5A: Division of Neurosurgical, Neurointerventional and Neurodiagnostic Devices OHT5: Office of Neurological and Physical Medicine Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K213589
Device Name FUBUKI XF Neurovascular Long Sheath
#### Indications for Use (Describe)
This product is intended to be used to guide interventional devices for neurovascular therapy to a lesion or a procedural site for a percutaneous intravascular procedure in the neurovasculature. This product is also intended to be used for injection of contrast media. This product is intended for use only in the neurovasculature.
| Type of Use (Select one or both, as applicable) | |
|-------------------------------------------------|---------------------------------------------|
| X Prescription Use (Part 21 CFR 801 Subpart D) | Over-The-Counter Use (21 CFR 801 Subpart C) |
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### 510(K) Summary [as required by 21 CFR §807.92(c)]
# 510(k) K213589
| DATE PREPARED: | 21 March 2022 |
|------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| APPLICANT: | ASAHI INTECC CO., LTD.<br>3-100 Akatsuki-cho, Seto<br>Aichi 489-0071, Japan |
| PRIMARY CONTACT: | Mrs. Cynthia Valenzuela<br>Director, Regulatory Affairs<br>ASAHI INTECC USA, INC.<br>3002 Dow Avenue, Suite 212<br>Tustin, California 92780<br>Phone: (949) 413 0071<br>Email: cynthiav@asahi-intecc-us.com |
| SECONDARY CONTACT: | Mr. Hiroshi Obara<br>Manager, Regulatory Affairs<br>ASAHI INTECC CO., LTD.<br>3-100 Akatsuki-cho<br>Seto, Aichi, Japan 489-0071<br>Email: hiroshi.obara@asahi-intecc.com |
| TRADE NAME: | FUBUKI XF Neurovascular Long Sheath |
| DEVICE CLASSIFICATION: | Class II, 21 CFR §870.1250 |
| CLASSIFICATION NAME: | Percutaneous Catheter |
| PRODUCT CODE: | QJP - Catheter, Percutaneous, Neurovasculature<br>DQY - Catheter, Percutaneous |
| PREDICATE DEVICE(S): | ASAHI FUBUKI 043 and ASAHI FUBUKI Guide Catheters<br>(K141981) |
### Intended Use/Indications for Use:
This product is intended to be used to guide interventional devices for neurovascular therapy to a lesion or a procedural site for a percutaneous intravascular procedure in the neurovasculature. This product is also intended to be used for injection of contrast media. This product is intended for use only in the neurovasculature.
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# Device Description:
The FUBUKI XF Neurovascular Long Sheath consists of a long sheath and a dilator. The long sheath is a single lumen neurovascular catheter designed for introduction of interventional devices, such as guidewires and other therapeutic devices. The long sheath consists of three sections: (1) a shaft, (2) a protector and (3) a connector. The distal portion of the shaft consists of a soft tip and a soft tube. The proximal part of the shaft is covered by the protector (strain relief) and the connector is bonded to the proximal end of the shaft.
The FUBUKI XF Neurovascular Long Sheath is provided sterile, by ethylene oxide, and is intended for single use only by physicians who have been adequately trained in neurointerventional procedures.
The outer surface of the long sheath is coated with a hydrophilic polymer to provide high lubricity when the surface is wet. The inner lumen of the shaft (excluding the connector portion) is lined with a fluoropolymer layer to facilitate movement of the quide wire and other devices.
The dilator consists of two parts: (1) a shaft and (2) a connector.
The FUBUKI XF Neurovascular Long Sheath is composed of a long sheath and a dilator packed in a sterile package. This sterile package is packed in an outer box with the Instructions for Use.
### Accessories:
The FUBUKI XF Neurovascular Long Sheath is packaged with a rotating hemostasis valve (RHV).
### Comparison with Predicate Device:
The FUBUKI XF Neurovascular Long Sheath subject to this submission has the same intended use and similar technological characteristics, such as components, design, materials, sterilization method, shelf life and operating principles as the predicate device.
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# Comparison with Predicate Device
| | Comparison with Predicate Device | |
|---------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Name of Device | ASAHI FUBUKI Guide<br>Catheters (8Fr)<br>Predicate Device<br>K141981 | FUBUKI XF Neurovascular Long<br>Sheath<br>Subject Device<br>K213589 |
| Regulatory Status | | |
| Regulation Number | 21 CFR §870.1250 | 21 CFR §870.1250 |
| Device Classification<br>Name | Catheter, Percutaneous | Catheter, Percutaneous,<br>Neurovasculature |
| Regulatory Class | II | II |
| Product Code | DQY | QJP<br>DQY |
| Indications for Use | This product is intended to be<br>used to guide interventional<br>devices for Neurovascular<br>therapy to a lesion or a<br>procedural site for a<br>percutaneous intravascular<br>procedure in the<br>Neurovasculature. This<br>catheter is also intended to be<br>used for injection of contrast<br>media. Do not use this<br>product other than for use in<br>the Neurovasculature. | This product is intended to be used<br>to guide interventional devices for<br>neurovascular therapy to a lesion<br>or a procedural site for a<br>percutaneous intravascular<br>procedure in the neurovasculature.<br>This product is also intended to be<br>used for injection of contrast media<br>This product is intended for use<br>only in the neurovasculature. |
| Product Information: | | |
| Labeled Shaft Outer<br>Diameter of Long<br>Sheath | 2.70mm (8 Fr, 0.106 inch) | 2.70mm (8 Fr, 0.106 inch) |
| Labeled Shaft Inner<br>Diameter of Long<br>Sheath | 0.090 inch (6.8Fr, 2.28mm) | 0.090 inch (6.8Fr, 2.28mm) |
| Long Sheath<br>Effective Length | 800mm, 900mm, 1000mm,<br>1100mm | 800mm, 900mm, 1000mm,<br>1100mm |
| Dilator Effective<br>Length | 925mm, 1025mm, 1125mm,<br>1225mm | 1020mm, 1120mm, 1220mm |
| Dilator Outer<br>Diameter (Proximal) | 2.21mm (6.6Fr, 0.087 inch) | 2.24mm (6.7Fr, 0.088 inch) |
| Tip Shape | Straight | Straight, Angled |
| Long Sheath Distal<br>Coating | Hydrophilic (50mm) | Hydrophilic (80mm) |
| Construction | Soft tip, soft tube and shaft,<br>protector, connector | Soft tip, soft tube and shaft,<br>protector, connector |
| Long Sheath Inner<br>Lumen | PTFE | PTFE |
| Accessories | None | Hemostasis Valve |
| Sterilization Method | Ethylene Oxide Gas | Ethylene Oxide Gas |
| Sterilization Level | SAL 10-6 | SAL 10-6 |
| Shelf Life | 3 years | 3 years |
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# NON-CLINICAL TESTING / PERFORMANCE DATA:
The following non-clinical bench testing was performed on the FUBUKI XF Neurovascular Long Sheath (long sheath and dilator) to determine substantial equivalence:
| Long Sheath | | | |
|--------------------------------------------|----------------------------|--|--|
| Test | Result | | |
| Visual Inspection | Pass | | |
| Air Leakage | Pass | | |
| Burst Pressure Under Static Condition | Pass | | |
| Corrosion Resistance | Pass | | |
| Dimensional Verification | Pass | | |
| Kink Resistance | Pass | | |
| Liquid Leakage | Pass | | |
| Radio-Detectability | Pass | | |
| Slidability | Pass | | |
| Tensile Strength | Pass | | |
| Tensile Strength (Distal Tip) | Pass | | |
| Coating Integrity / Particulate Evaluation | (Characterization<br>Only) | | |
| Simulated Use Test | Pass | | |
| Flowrate | Pass | | |
| Power Injection Test | Pass | | |
| Tip Flexibility | Pass | | |
| Torque Strength | Pass | | |
#### Dilator
| Test | Result |
|--------------------------|--------|
| Visual Inspection | Pass |
| Corrosion Resistance | Pass |
| Dimensional Verification | Pass |
| Radio-Detectability | Pass |
| Tensile Strength | Pass |
The bench tests performed on finished sterilized product demonstrated that the FUBUKI XF Neurovascular Long Sheath is substantially equivalent to the cleared predicate K141981. No new questions of safety and effectiveness were identified with the design change. The acceptance criteria were based on ISO standards identified, as applicable, and were identical to the acceptance criteria used for the predicate ASAHI FUBUKI Guide Catheters (K141981).
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# BIOCOMPATIBILITY:
Biocompatibility testing was performed in accordance to ISO 10993. All testing performed met the requirements as specified within the applicable standard.
Per ISO 10993-1, the FUBUKI XF Neurovascular Long Sheath was categorized as an externally communicating device with circulating blood contact for a limited duration (<24 hours).
## Biocompatibility Test Results for Long Sheath
| Test | Standard | Acceptance Criteria | Results |
|-------------------------------------------------------------------------|-------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------|
| Cytotoxicity<br>MEM Elution Test | ISO 10993-5<br>No deviations | The test system is considered suitable if no signs of<br>cellular reactivity (Grade 0) are noted for both the<br>negative control article and the medium control. | Non-Toxic |
| Sensitization<br>Kligman Maximization<br>Test | ISO 10993-10<br>No deviations | The extracts should show no evidence of causing delayed<br>dermal contact sensitization in the quinea pig. | Non-Sensitizing |
| Irritation<br>Intracutaneous<br>Injection Test | ISO 10993-10<br>No deviations | The test article sites should not show a significantly<br>greater biological reaction than the sites injected with the<br>control article. | Non-Irritant |
| Systemic Toxicity<br>Acute Systemic<br>Toxicity Test | ISO 10993-11<br>No deviations | The test article must not show significantly greater<br>biological activity than the control. | No Systemic Toxicity |
| Hemocompatibility<br>Rabbit Blood<br>Hemolysis Test | ISO 10993-4<br>No deviations | The test article in direct contact with blood and test article<br>extract must be non-hemolytic. | Non-Hemolytic |
| Material Mediated<br>Pyrogenicity<br>Rabbit Pyrogen Test | ISO10993-11<br>No deviations | The test article should not increase the temperature of<br>any of the animals by more than 0.5 degrees Celsius. | Non-Pyrogenic |
| Hemocompatibility<br>Unactivated Partial<br>Thromboplastin Time<br>Test | ISO 10993-4<br>No deviations | The UPTT of the plasma exposed to test article extract<br>should not be significantly decreased when compared<br>the UPTT of the plasma exposed to the negative control<br>or the untreated control. | Not an Activator |
| Hemocompatibility<br>Complement<br>Activation Assay<br>(SC5b-9) | ISO 10993-4<br>No deviations | The plasma exposed to test article must exhibit no<br>significant increase in SC5b-9 when compared to<br>activated NHS and negative control after 60 minutes<br>exposure. | Not an Activator |
| Thrombogenicity<br>Thrombogenicity<br>Study in Dogs | ISO 10993-4<br>No deviations | Compare results of test article to predicate control for<br>Thrombogenic response. Determine acceptability of<br>results as part of risk management. | Comparable<br>thromboresistance<br>with control |
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# Biocompatibility Test Results for Dilator
| Test | Standard | Acceptance Criteria | Results |
|-------------------------------------------------------------------------|-------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------|
| Cytotoxicity<br>MEM Elution Test | ISO 10993-5<br>No deviations | The test system is considered suitable if no signs of<br>cellular reactivity (Grade 0) are noted for both the<br>negative control article and the medium control. | Non-Toxic |
| Sensitization<br>Kligman Maximization<br>Test | ISO 10993-10<br>No deviations | The extracts should show no evidence of causing delayed<br>dermal contact sensitization in the guinea pig. | Non-Sensitizing |
| Irritation<br>Intracutaneous<br>Injection Test | ISO 10993-10<br>No deviations | The test article sites should not show a significantly<br>greater biological reaction than the sites injected with the<br>control article. | Non-Irritant |
| Systemic Toxicity<br>Acute Systemic<br>Toxicity Test | ISO 10993-11<br>No deviations | The test article must not show significantly greater<br>biological activity than the control. | No Systemic Toxicity |
| Hemocompatibility<br>Rabbit Blood<br>Hemolysis Test | ISO 10993-4<br>No deviations | The test article in direct contact with blood and test article<br>extract must be non-hemolytic. | Non-Hemolytic |
| Material Mediated<br>Pyrogenicity<br>Rabbit Pyrogen Test | ISO10993-11<br>No deviations | The test article should not increase the temperature of<br>any of the animals by more than 0.5 degrees Celsius. | Non-Pyrogenic |
| Hemocompatibility<br>Unactivated Partial<br>Thromboplastin Time<br>Test | ISO 10993-4<br>No deviations | The UPTT of the plasma exposed to test article extract<br>should not be significantly decreased when compared<br>the UPTT of the plasma exposed to the negative control<br>or the untreated control. | Not an Activator |
| Hemocompatibility<br>Complement<br>Activation Assay<br>(SC5b-9) | ISO 10993-4<br>No deviations | The plasma exposed to test article must exhibit no<br>significant increase in SC5b-9 when compared to<br>activated NHS and negative control after 60 minutes<br>exposure. | Not an Activator |
| Thrombogenicity<br>Thrombogenicity<br>Study in Dogs | ISO 10993-4<br>No deviations | Compare results of test article to predicate control for<br>Thrombogenic response. Determine acceptability of<br>results as part of risk management. | Comparable<br>thromboresistance<br>with control |
# STERILIZATION and SHELF LIFE:
The FUBUKI XF Neurovascular Long Sheath sterilization process using Ethylene Oxide (EO) has been validated in accordance with ISO 11135-1:2014 to achieve a sterility assurance level (SAL) of 10°. EO and Ethylene Chlorohydrin (ECH) residuals were below the limits specified in ISO 10993-7:2008.
Bacterial Endotoxin Levels were below the level of 2.15 EU/device.
Both baseline and accelerated shelf-life testing were conducted demonstrating the device will perform as intended to support the proposed 3 year shelf-life.
### CONCLUSION:
The FUBUKI XF Neurovascular Long Sheath has similar intended use and similar technological characteristics, such as components, design, materials, sterilization method, shelf life and operating principles, as the predicate device ASAHI FUBUKI Guide Catheters. Performance data demonstrate that the device functions as intended. Therefore, the FUBUKI XF Neurovascular Long Sheath is considered substantially equivalent to the predicate device.
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.