K162522 · Teleflexmedical, Inc. · BSO · Mar 17, 2017 · Anesthesiology
Device Facts
Record ID
K162522
Device Name
UltraCath Continuous Nerve block Catheter
Applicant
Teleflexmedical, Inc.
Product Code
BSO · Anesthesiology
Decision Date
Mar 17, 2017
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 868.5120
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Arrow UltraCath Continuous Nerve block Catheter is placed next to nerve plexuses for continuous nerve block anesthesia or analgesia techniques for periods not exceeding 72 hours.
Device Story
The UltraCath Continuous Nerve Block Catheter is a medical device used for continuous nerve block anesthesia or analgesia. It consists of a stainless steel spring coil encased in a polyurethane outer jacket, with a black electrically conductive resin tip. A stylet is inserted into the spring coil to provide stiffness during placement. The device is placed next to nerve plexuses by a clinician. It functions by distributing anesthetics into the patient's body through a single end hole at the distal tip. The conductive tip allows for electrical stimulation to aid in placement. The device is intended for use in clinical settings for periods not exceeding 72 hours. By providing a continuous delivery path for anesthetics, it enables prolonged pain management or anesthesia, benefiting patients requiring extended nerve block procedures.
Clinical Evidence
Bench testing only. No clinical data provided. Testing included mechanical performance (aspiration, flow rate, tensile strength, kink resistance), electrical safety (leakage current, continuity, heat emission), and comprehensive biocompatibility testing per ISO 10993 standards (cytotoxicity, sensitization, irritation, systemic toxicity, mutagenicity, implantation, hemolysis, and pyrogenicity).
Technological Characteristics
Catheter consists of a stainless steel spring coil encased in a 95A Tecothane polyurethane jacket. Distal tip is made of electrically conductive resin. Features include centimeter depth markings and a stylet for insertion stiffness. Sterilized via Ethylene Oxide. Single-use. Complies with BS EN 1707, BS EN 1618, BS 6196, and BS EN ISO 10555-1 standards.
Indications for Use
Indicated for adult patients requiring administration of local anesthetics via continuous nerve block anesthesia or analgesia techniques for up to 72 hours.
Regulatory Classification
Identification
An anesthesia conduction catheter is a flexible tubular device used to inject local anesthetics into a patient and to provide continuous regional anesthesia.
{0}------------------------------------------------
Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular border with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" written around it. Inside the circle is an abstract symbol that resembles three human profiles facing to the right, stacked on top of each other.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
March 17, 2017
Teleflex Medical, Inc. Kristen Bisanz Regulatory Affairs Specialist 3015 Carrington Mill Blvd Morrisville, North Carolina 27560
Re: K162522
Trade/Device Name: UltraCath Continuous Nerve Block Catheter Regulation Number: 21 CFR 868.5120 Regulation Name: Anesthesia Conduction Catheter Regulatory Class: II Product Code: BSO, CAZ Dated: January 10, 2017 Received: January 30, 2017
Dear Kristen Bisanz:
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. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
{1}------------------------------------------------
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807): labeling (21 CFR Part 801): medical device reporting of medical devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. 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 the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely,
Image /page/1/Picture/8 description: The image contains a signature and the name "Tina Kiang". Below the name, there is a "-s" written. The signature is a complex swirl of lines, and the name is written in a simple, clear font.
Tina Kiang, Ph.D. Acting Director Division of Anesthesiology. General Hospital, Respiratory, Infection Control, and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{2}------------------------------------------------
# Indications for Use
510(k) Number (if known) K162522
Device Name
UltraCath Continuous Nerve Block Catheter
#### Indications for Use (Describe)
The Arrow UltraCath Continuous Nerve block Catheter is placed next to nerve plexuses for continuous nerve block anesthesia or analgesia techniques for periods not exceeding 72 hours.
| Type of Use (Select one or both, as applicable) | |
|---------------------------------------------------------------------------|--------------------------------------------------------------------------|
| <div> <span>☑</span> Prescription Use (Part 21 CFR 801 Subpart D) </div> | <div> <span>☐</span> Over-The-Counter Use (21 CFR 801 Subpart C) </div> |
#### CONTINUE ON A SEPARATE PAGE IF NEEDED.
This section applies only to requirements of the Paperwork Reduction Act of 1995.
#### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff@fda.hhs.gov
"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."
{3}------------------------------------------------
# 510(k) SUMMARY
## A. Name, Address, Phone and Fax Number of Applicant
Teleflex Medical, Incorporated 3015 Carrington Mill Blvd Morrisville, NC 27560 USA Phone: 919-433-2703 Fax: 919-433-4989
# B. Contact Person
Kristen Bisanz Regulatory Affairs Specialist
## C. Date Prepared
September 7, 2016
## D. Device Name
| Trade Name: | UltraCath Continuous Nerve Block Catheter |
|-----------------------|-------------------------------------------|
| Classification Name: | Anesthesia Conduction Catheter |
| Product Code: | BSO and CAZ |
| Regulation Number: | 868.5120 |
| Classification: | II |
| Classification Panel: | Anesthesiology |
### E. Predicate Device
This submission demonstrates substantial equivalence to the catheter component of the predicate device, StimuCath Continuous Nerve block Set - K030937.
### F. Device Description
Stimulating continuous nerve block catheters consist of a stainless steel spring coil encased in a polyurethane outer jacket. The inner spring coil contributes a kink-resistance nature to the catheter when bent through small radii, and in stimulating catheters provides electrical conductivity. A ribbon wire is welded to both the proximal and distal ends of the inside of the coil to prevent stretching. The coils of the main catheter body are tightly wound axially (small pitch), with zero space between adjacent coils. The catheter tip is visible under ultrasound.
{4}------------------------------------------------
The plastic jacket of the Conductive Resin Tip UltraCath Continuous Nerve Block Catheter is made of transparent resin and the catheter tip is made of black electrically conductive resin that covers the internal stainless steel spring coil and seals the system against undesired fluid or air ingress or egress. Anesthetics are distributed into the patient body through a single end hole located at the catheter distal end. The catheter distal tip is made of electrically conductive resin which provides an electrical contact point. The distal end of the catheter is printed with centimeter markings to aid in depth determination during catheter insertion. There is also printed distance indicator at proximal end in order to indicate proper catheter insertion inside the adaptor. A stylet placed inside the catheter's spring coil provides stiffness during the insertion procedure .
## G. Indications for Use
The Arrow UltraCath Continuous Nerve block Catheter is placed next to nerves and nerve plexuses for continuous nerve block anesthesia or analgesia techniques for periods not exceeding 72 hours.
# H. Technological Characteristics Comparison to the predicate
The proposed UltraCath Continuous Nerve Block Catheter is substantially equivalent to the predicate device with respect to indications for use, technology and construction. The differences between the predicate and the proposed devices are minor and any risks have been mitigated through testing. Table 1 provides a summary of the differences and similarities between the proposed and predicate devices.
| Comparative<br>Characteristic | Predicate Device: | Proposed Device: |
|--------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | StimuCath® Continuous Nerve Block Set | UltraCath Continuous Nerve<br>Block Catheter |
| | K030937 | |
| Classification Name | Anesthesia Conduction Kit | Anesthesia Conduction Catheter |
| Product Code / CFR | CAZ, 868.5140 | BSO, 868.5120 |
| Intended Use/<br>Indications for Use | The Arrow StimuCath Continuous Nerve<br>block Set permits placement of catheters<br>next to nerves and nerve plexuses for<br>continuous nerve block anesthesia or<br>analgesia techniques for periods not<br>exceeding 72 hours. | The Arrow UltraCath<br>Continuous Nerve Block<br>Catheter is placed next to nerves<br>and nerve plexuses for<br>continuous nerve block<br>anesthesia or analgesia<br>techniques for periods not<br>exceeding 72 hours |
| Comparative<br>Characteristic | Predicate Device:<br>StimuCath® Continuous Nerve Block Set<br>K030937 | Proposed Device:<br>UltraCath Continuous Nerve<br>Block Catheter |
| Patient Population | Adult Patients that require administration of<br>local anesthetics | Same |
| Catheter Design | Stimulating | Same |
| Catheter Gauge Size | 19 Ga. And 20 Ga. | 19 Ga. |
| Catheter Lengths | 30cm, 60cm, 90cm | 60cm |
| Catheter Outer Jacket | 19 Ga., White 95A Tecothane, polyurethane<br><br>20 Ga., Blue 95A Tecothane, polyurethane | 19 Ga., Clear 95A Tecothane,<br>polyurethane<br>N/A |
| Exposed Length at Distal<br>Tip | 5mm (19 Ga.) and 6mm (20 Ga.) | N/A, Tip not exposed |
| Exposed area at Distal Tip | 23.2 mm² | N/A, Tip not exposed |
| Catheter Current Density | 0.086 mA/mm² | 0.3 mA/mm² |
| Stylet Electrical<br>Connection | Detachable electrical cable with clips (J-<br>Snare connector) or integrated electrical<br>cable with shrouded 2 mm female<br>connectors | Detachable electrical cable with<br>clips (J-snare connector) |
| Shelf Life | 2 years | One Year |
| Method of Sterilization | Ethylene Oxide | Same |
| Single Use | Yes | Same |
### Table 1 - Differences/Similarities between the Proposed and Predicate Devices
{5}------------------------------------------------
# I. Performance Data
A brief summary of tests conducted to demonstrate substantial equivalence to the predicate can be found in Table 2 below.
# Table 2 – Performance Testing Summary
| Test | Reference to Standard<br>(if applicable) | Principle of Test |
|-------------------------------------------------------------------------------------|------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | | |
| Catheter<br>Aspiration Test | Internal Requirement | Tests ability to aspirate fluid without signs of<br>collapse by drawing water via syringe |
| Body Column<br>Strength Test | Internal Requirement | Tests ability of pushing catheter through the<br>needle into the desired location |
| Bolus Flow Rate<br>Test | Internal Requirement | Tests the flow capability through the catheter<br>when tested using de-ioneized water |
| Catheter Removal<br>Force from<br>Needle Test | Internal Requirement | Tests the ability to insert and withdraw catheter<br>through the needle tip without damage and<br>force to remove catheter shall not exceed 3<br>Newtons. |
| Electrical Leakage<br>Current | Internal Requirement | To test that the leakage current does not exceed<br>0.10 mA when a voltage of 110V AC at 50 Hz<br>is applied for one minute. |
| Catheter Length | Internal Requirement | To measure the length of the catheter |
| Catheter OD | Internal Requirement | To measure the outside diameter of the catheter |
| Catheter-to-<br>Snaplock Adapter<br>Liquid Leak Test | BS EN 1707; BS EN 1618 | Tests that no leakage from the catheter and<br>between the catheter and detachable Luer<br>fitting shall occur in the form of a drop of water<br>in 30 seconds when tested under pressure. |
| Catheter-to-<br>Snaplock Static<br>Pull Test | BS 6196 | Tests that the detachable Luer fitting does not<br>become detached from the catheter. |
| Continuous Flow<br>Rate Test | Internal Requirement | Tests the flow of de-ionized water through the<br>catheter when tested less than 10 psi. |
| Corrosion<br>Resistance | BS EN 1618 | Tests metallic components for their resistance<br>to corrosion. |
| Distance<br>Markings/Ink<br>Adhesion – Distal<br>Ends | BS 6196 | Tests to confirm ink adhesion and distance<br>markings at the distal ends of the catheter and<br>visible from all aspects. |
| Distance<br>Markings/Ink<br>Adhesion -<br>Proximal Ends | BS 6196 | Tests to confirm ink adhesion and distance<br>markings at the proximal ends of the catheter<br>and visible from all aspects. |
| Electrical<br>Continuity Test | Internal Requirement | Tests the electrical continuity of the catheter<br>from the electrical connector to the most distal<br>tip of the catheter and measures the electrical |
| | | resistance. |
| Flash Back<br>Window Test –<br>Length, Position,<br>Transparency | Internal Requirement | Measures the length, position and transparency<br>of the Flash Back Windows |
| Kink Resistance<br>Test | Internal Requirement | Tests the ability for flow through the catheter<br>when looped around a 1.58 mm diameter pin |
| Needle<br>Stimulation by<br>Catheter Test | Internal Requirement | Tests catheter's ability to stimulate the needle<br>when being inserted inside the needle cannula. |
| Catheter Surface<br>Inspection | BS EN ISO 10555-1 | Evaluates the condition of the surface of the<br>catheter. |
| Catheter Tensile<br>Strength Test | BS EN 1618 | Tests the catheter tensile force at both the<br>catheter tip and the main catheter body. |
| Tip Column<br>Strength Test | Internal Requirement | Tests column strength of the catheter tip |
| Catheter Tip Heat<br>Emission Test | Internal Requirement | Tests the heat generated at the tip of the<br>catheter when a current of 5mA is being<br>delivered from simulator working on 100 volts<br>or less. |
| Catheter<br>Resistance to<br>Leakage During<br>Aspiration | BS EN 1618 | Tests leakage at catheter joints (measured as<br>pressure decay) when an internal pressure is<br>applied at 25mmHg for 120 seconds. |
| L929 MEM<br>Elution Test | ISO 10993-5 | Tests the potential biological reactivity of a<br>mammalian cell culture (L929) in response to<br>the test article extract. |
| Kligman<br>Maximization<br>Test | ISO 10993-10 | Evaluates the allergic potential or sensitizing<br>capacity of the test article. |
| Intracutaneous<br>Injection Test | ISO 10993-10 | Determines the potential irritation effects of the<br>test article extra as a result of an intracutaneous<br>injection in New Zealand white rabbits. |
| Systemic<br>Injection Test | ISO 10993-11 | Determines the potential toxic effects of the<br>test article extract as a result of a single-dose<br>systemic injection in mice. |
| Material Mediated | SO 10993-11 | Determines the presence of chemical pyrogens<br>in extracts of solid materials in order to limit to |
| Rabbit Pyrogen | | an acceptable level the risk of febrile reaction<br>following administration of the product to the<br>patient. |
| Abridged 28 Day<br>Sub-acute<br>Systemic Toxicity<br>by Implant Test | ISO 10993-11 | Determines the toxicity potential of the test<br>material administered by subcutaneous<br>implantation in rates for 28 days. |
| Salmonella<br>typhimurium and<br>Escherichia coli<br>Reverse Mutation<br>Assay Test | ISO 10993-3 | Determines the potential mutagenicity of the<br>test article or its extract on various strains of<br>Salmonella typhimurium and Escherichia coli<br>bacteria, via a change in their dependence for<br>exogenous histidine or tryptophan. |
| Mouse<br>Lymphoma<br>Forward Mutation<br>Assay | ISO 10993-3 | Determines the potential mutagenicity effect on<br>mouse lymphoma cells (heterozygous<br>thymidine kinase mutant TK+/- L5178Y) in<br>response to the test article extract. |
| Mouse Blood<br>Micronucleus<br>Test | ISO 10993-3 | Determines the potential clastogenic effects of<br>the test article extract on maturing erythrocytes<br>in mice, via the detection of micronuclei in the<br>circulating reticulocytes. |
| 4 week<br>Implantation Test | ISO 10993-6 | Evaluates the test article for local tissue<br>responses and the potential to induce local<br>toxic effects after implantation in the muscle<br>tissue of albino rats. |
| Hemolysis -<br>Rabbit Blood -<br>Complete Method<br>Test | ISO 10993-4 | Determines the potential hemolytic activity, via<br>the induction of increased levels of free plasma<br>hemoglobin in rabbit blood, in response to the<br>test article and its extract. |
| Extractable and<br>Leachable Study | ISO 10993-17 | Determines the extractable amount of chemical<br>compounds present in and on the device. |
| Ethylene Oxide<br>Residual Test | ISO 10993-7 | Determines the residual Ethylene Oxide on the<br>device |
| LAL Bacterial<br>Endotoxin | AAMI ST72 | Documents the bacterial endotoxin levels on<br>the device |
| Packaging Visual<br>Test | ASTM F1886:2009 | Demonstrates no breach of package or seal |
| Packaging Peel | ASTM F88:2009 | Demonstrates a peel strength greater than or |
| Strength | | equal to 0.57 lb/in |
| Packaging Bubble<br>Leak Test | ASTM F2096:2011 | Demonstrates no steady stream of bubbles<br>emanating from the package seal area or other<br>areas of the package. |
{6}------------------------------------------------
{7}------------------------------------------------
{8}------------------------------------------------
{9}------------------------------------------------
# J. Conclusion
The UltraCath Continuous Nerve Block Catheter has the same indications for use and similar technology of construction as the predicate device. Performance test results demonstrate that the proposed device meets its intended use. It is for these reasons that the proposed device can be found substantially equivalent.
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.