F&P Optiflow Nasal Oxygen Cannula with CO2 Sampling
Applicant
Fisher & Paykel Healthcare, Ltd.
Product Code
BTT · Anesthesiology
Decision Date
Mar 16, 2021
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 868.5450
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
This product is a single-patient-use device that delivers respiratory gases to adult patients in hospitals and long-term care facilities. This product is indicated for the delivery of Nasal High Flow (NHF) and Low Flow Oxygen to spontaneously breathing patients by appropriately qualified healthcare professionals. Qualitative carbon dioxide sampling can be used at nasal cannula flow rates from 5 to 50 L/min in operating and procedure rooms. This product can be used for pre-oxygenation and short-term supplemental oxygenation (up to 10 minutes) during intubation in operating rooms under the direction of a physician anesthesiologist. This product is not intended for apneic ventilation.
Device Story
Interface delivers respiratory gases to adult patients; connects to humidification systems or flow meters via ISO 5356-1 connectors. Features integrated CO2 sampling component for connection to external CO2 sampling lines and analyzers. Designed with specific tube/manifold geometry to reduce turbulent flow. Used in hospitals and long-term care facilities by healthcare professionals. Provides respiratory gas delivery and qualitative CO2 monitoring; assists in pre-oxygenation and short-term oxygenation during intubation. Benefits include combined gas delivery and monitoring capability in a single patient interface.
Clinical Evidence
No clinical data relied upon. Substantial equivalence demonstrated via bench testing, including shelf-life (ASTM F1980-16), transportation (ISTA 2A:2011), leak testing, flow resistance, and mechanical strength testing. Biocompatibility evaluated per ISO 10993-1 and ISO 18562-1. Usability testing conducted for CO2 sampling feature.
Technological Characteristics
Nasal cannula interface with integrated CO2 sampling port. Materials evaluated per ISO 10993-1 and ISO 18562-1. Connectors: 22 mm male ISO 5356-1 taper and Luer lock (ISO 594-2). Flow range: 5-70 L/min. Non-sterile, single-patient use. Mechanical design optimized for reduced turbulent flow.
Indications for Use
Indicated for adult patients in hospitals and long-term care facilities requiring Nasal High Flow (NHF) or Low Flow Oxygen. Suitable for spontaneously breathing patients. CO2 sampling indicated for use at flow rates 5-50 L/min in operating/procedure rooms. Indicated for pre-oxygenation and short-term supplemental oxygenation (up to 10 min) during intubation under physician anesthesiologist direction. Contraindicated for apneic ventilation.
Regulatory Classification
Identification
A respiratory gas humidifier is a device that is intended to add moisture to, and sometimes to warm, the breathing gases for administration to a patient. Cascade, gas, heated, and prefilled humidifiers are included in this generic type of device.
Westmed Gas Sampling Cannula with O2 Delivery (K162343)
Submission Summary (Full Text)
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March 16, 2021
Fisher & Paykel Healthcare Ltd. Reena Daken Senior Regulatory Affairs Specialist 15 Maurice Paykel Place, East Tamaki Auckland, 2013 New Zealand
Re: K201723
Trade/Device Name: F&P Optiflow Nasal Oxygen Cannula with CO2 Sampling Regulation Number: 21 CFR 868.5450 Regulation Name: Respiratory Gas Humidifier Regulatory Class: Class II Product Code: BTT Dated: February 12, 2021 Received: February 16, 2021
Dear Reena Daken:
We have reviewed vour 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 (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,
Todd Courtney Assistant Director DHT1C: Division of ENT. Sleep Disordered Breathing, Respiratory and Anesthesia Devices OHT1: Office of Ophthalmic, Anesthesia, Respiratory, ENT and Dental 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) K201723
### Device Name
F&P Optiflow Nasal Oxygen Cannula with CO2 Sampling
Indications for Use (Describe)
This product is a single-patient-use device that delivers respiratory gases to adult patients in hospitals and long-term care facilities.
This product is indicated for the delivery of Nasal High Flow (NHF) and Low Flow Oxygen to spontaneously breathing patients by appropriately qualified healthcare professionals.
Qualitative carbon dioxide sampling can be used at nasal cannula flow rates from 5 to 50 L/min in operating and procedure rooms.
This product can be used for pre-oxygenation and short-term supplemental oxygenation (up to 10 minutes) during intubation in operating rooms under the direction of a physician anesthesiologist.
This product is not intended for apneic ventilation.
Type of Use (Select one or both, as applicable)
| <div> <span> <b> ☑ Prescription Use (Part 21 CFR 801 Subpart D) </b> </span> </div> |
|-----------------------------------------------------------------------------------------------------------|
| <div> <span> ☐ Over-The-Counter Use (21 CFR 801 Subpart C) </span> </div> |
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# 510(k) Summary
As Required by 21 CFR 807.92(c)
#### l. SUBMITTER
| Company Name and Address | Fisher & Paykel Healthcare Limited<br>15 Maurice Paykel Place<br>East Tamaki<br>Auckland 2013, New Zealand<br>Telephone: +64 9 574 0100 |
|---------------------------|-----------------------------------------------------------------------------------------------------------------------------------------|
| Prepared and Submitted by | Amelia Ortiz Rios<br>Senior Regulatory Affairs Specialist |
| Contact Person | Reena Daken<br>Regulatory Affairs Market Manager<br>Telephone: +64 9 574 0100<br>Email: reena.daken@fphcare.co.nz |
| Date Prepared | 16 March 2021 |
#### II. DEVICE
| Name of Device | F&P Optiflow™ Nasal Oxygen Cannula with CO2 Sampling |
|---------------------|------------------------------------------------------|
| Common/Usual Name | Nasal Cannula |
| Classification Name | Respiratory gas humidifier |
| Regulatory Class | Class II (21 CFR §868.5450) |
| Product Code | BTT |
#### PREDICATE DEVICE lll.
- Predicate device: ●
- K162553 F&P Optiflow™+ Nasal Cannula o
- . Reference device:
- K162343 Westmed Gas Sampling Cannula with O2 Delivery o
#### IV. DEVICE DESCRIPTION
The F&P Optiflow™ Nasal Oxygen Cannula with CO2 Sampling is a medical device intended to deliver respiratory gases to the patient and provide a sample of the patient's exhaled respiratory gases through the CO2 sampling accessory to a CO2 sampling line and CO2 analyzer. The device is offered in three sizes being small (S), medium (M) and large (L). The F&P Optiflow™ Nasal Oxygen Cannula with CO2 Sampling is a prescription only device, provided in a non-sterile state.
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## Principle of Operation
The subject device is an interface which delivers respiratory gases to the patient from a humidification system or a flow meter. The internal diameter of the tube and the geometry of the manifold, gas path connector and nasal prongs have been designed to reduce turbulent flow, allowing it to deliver respiratory gas at both low and high flows.
The F&P Optiflow™ Nasal Oxygen Cannula with CO2 Sampling may be connected to breathing circuits and a humidifier or it may also be used with a flow meter, such as, the Compensated Thorpe Tube Flowmeter. the Nasal Oxygen Cannula may be connected to breathing circuits through a male medical taper connector as per ISO 5356-1:2015 'Anaesthetic and respiratory equipment – Conical connectors - Part 1: Cones and sockets'.
The nasal cannula delivers respiratory gases from the inspiratory tube to the patient. The nasal cannula is fitted onto the patient and attached to the inspiratory tube using the above connector. The CO2 sampling component connects to a commercially available carbon dioxide sampling line (not included with this product) and is fitted on the patient to sample exhaled gas from either the nares, or mouth.
#### INDICATIONS FOR USE V.
This product is a single-patient-use device that delivers respiratory gases to adult patients in hospitals and long-term care facilities.
This product is indicated for the delivery of Nasal High Flow (NHF) and Low Flow Oxygen to spontaneously breathing patients by appropriately qualified healthcare professionals.
Qualitative carbon dioxide sampling can be used at nasal cannula flow rates from 5 to 50 L/min in operating and procedure rooms.
This product can be used for pre-oxygenation and short-term supplemental oxygenation (up to 10 minutes) during intubation in operating rooms under the direction of a physician anesthesiologist.
This product is not intended for apneic ventilation.
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#### COMPARISON OF TECHNOLOGICAL CHARACTERISTICS WITH THE PREDICATE DEVICE VI.
| Design/technological | Subject device | Predicate device | Rationale for Substantial Equivalence |
|----------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| characteristic for | F& P Optiflow™ Nasal Oxygen | F&P Optiflow™+ Nasal Cannula | |
| comparison | Cannula with CO2 Sampling | | |
| Indications for Use | This product is a single-patient-use<br>device that delivers respiratory gases to<br>adult patients in hospitals and long-term<br>care facilities.<br>This product is indicated for the delivery<br>of Nasal High Flow (NHF) and Low Flow<br>Oxygen to spontaneously breathing<br>patients by appropriately qualified<br>healthcare professionals.<br>Qualitative carbon dioxide sampling can<br>be used at nasal cannula flow rates from<br>5 to 50 L/min in operating and procedure<br>rooms.<br>This product can be used for pre-<br>oxygenation and short-term<br>supplemental oxygenation (up to 10<br>minutes) during intubation in operating<br>rooms under the direction of a physician<br>anesthesiologist.<br>This product is not intended for apneic<br>ventilation. | Nasal cannula patient interface for<br>delivery of humidified respiratory gases. | Equivalent<br>The intended uses are equivalent.<br>The subject and predicate devices are both<br>intended to deliver high flow humidified<br>respiratory gases.<br>The subject device has a carbon dioxide<br>sampling functionality which is supported<br>through performance testing as per the<br>reference device, K162343. |
| Availability | Prescription use.<br>(Part 21 CFR 801 Subpart D) | Prescription use.<br>(Part 21 CFR 801 Subpart D) | Identical. |
| Patient Population | Adult patients. | Mainly adult patients. | Equivalent.<br>Patient population for the subject device is a<br>subset of the patient population of the predicate<br>device. |
| Operating<br>Environment | Hospitals and long term care facilities. | Hospitals and long term care facilities. | Identical. |
| Reusability and<br>Duration of Use | Single patient use only for a maximum<br>period of 24 hours. | Single patient use only,<br>< 14 days hospital<br><br>Single patient reusable,<br>< 30 days home | Equivalent. |
| Sizes | AA030S<br>AA030M<br>AA030L | OPT942 Small<br>OPT944 Medium<br>OPT946 Large | Identical. |
| Specifications | | | |
| Ambient Operating<br>Temperature | 18 – 26 °C | 18 – 28 °C | Equivalent<br>The operating temperature range is within that of<br>the predicate device. |
| System<br>Specifications | When assembled with 22 mm heated<br>inspiratory tube and chamber and a<br>compatible F&P humidifier: | MR850 Humidifier in invasive mode, RT<br>series kit with 22 mm heated inspiratory<br>tube and chamber. | Equivalent<br>The subject device is intended for use with a<br>larger flow range. |
| | Flow Range:<br>AA030S(Small) 5-70L/min<br>AA030M(Medium) 5-70L/min<br>AA030L(Large) 5-70L/min | Flow Range:<br>OPT942 (Small) 10 - 60L/min<br>OPT944 (Medium) 10 - 60 L/min<br>OPT946 (Large) 10 - 60 L/min | |
| Shelf Life | 18 months | Shelf-life not claimed on labelling | The subject device claims an 18-month shelf life. |
| Storage Temperature | -10°C to +50°C | -10°C to +50°C | Identical |
| Sterility | Device not provided sterile | Device not provided sterile | Identical |
| Disposal | Dispose of product safely in accordance<br>with standard hospital procedure. | Disposal not defined. | Disposal information defined for subject device<br>in the User Instruction. |
| Nasal Cannula Function and Design | | | |
| 22 mm Male ISO<br>Taper Connector | Included. | Included. | Identical. |
| Proprietary F&P<br>Connector | Included. | Included. | Identical. |
| CO2 Sampling tube's<br>Luer connection | Included | Not Included | CO2 Sampling feature is only present in the<br>subject device and not available in the predicate<br>device.<br>The sampling functionality is equivalent to that of<br>the reference device, K162343. |
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#### PERFORMANCE DATA VII.
# Non-Clinical Performance Data
Performance testing of the F&P Optiflow™ Nasal Oxygen Cannula with CO2 Sampling was completed to determine that the differences between the subject device and the predicate device do not raise new questions of safety or effectiveness. These tests demonstrate substantial equivalence of the F&P Optiflow™ Nasal Oxygen Cannula with CO2 Sampling to the predicate device.
- . Shelf life testing was performed following accelerated aging conditioning as per ASTM F1980-16 to demonstrate product requirements continue to be met after 18 months of storage.
- . Transportation testing was performed following transportation to ISTA 2A:2011 Packaged-Products 150 lbs (68 kgs) or Less.
- . The following additional performance testing has also been completed to confirm the safety and effectiveness of the Optiflow™ Nasal Oxygen Cannula with CO2 Sampling:
- Nasal Cannula Leak Test O
- O CO2 Sampling Tube Leak Test
- Resistance to flow of the CO2 Sampling Tube O
- Resistance to flow during compression of the CO2 Sampling Tube o
- Testing was performed to ensure functional requirements were met after transport, o storage, and simulated use conditioning.
- O Strength testing of CO2 Sampling Tube's permanent connections after transport, storage, and simulated use conditioning.
- Testing to validate the device's CO2 Sampling functionality O
Usability testing conducted on the use of the CO2 Sampling feature and the warnings and directions for use related to the CO2 Sampling feature only.
The Optiflow™ Nasal Oxygen Cannula with CO2 Sampling has been tested to applicable requirements of the following standards:
- ISO 594-2. "Conical fitting with 6% (Luer) taper for syringes, needles and certain other . medical equipment- Part 2: Lock fittings".
- ISO 5356-1:2004 "Anesthetic and Respiratory Equipment- Conical Connectors- Part 1: Cones ● and Sockets".
- ISO 5361:2012 "Anesthetic and Respiratory Equipment-Tracheal tubes and connectors" ●
- ISO 10993-1 Fifth Edition 2018-08 "Biological Evaluation of Medical Devices Part 1: . Evaluation and Testing Within a Risk Management Process".
- . ISO 18562-1 First Edition 2017-03, "Biocompatibility evaluation of breathing gas pathways in healthcare applications- Part 1: Evaluation and testing within a risk management process".
# Clinical Performance Data
Clinical performance data has not been relied upon in this marketing submission to demonstrate substantial equivalence between the subject and predicate devices.
#### CONCLUSIONS VIII.
The comparison of features, performance data and intended use demonstrate that the F&P Optiflow™ Nasal Oxygen Cannula with CO2 Sampling is substantially equivalent to the predicate, Optiflow™ + Nasal Cannula, (K162553).
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Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.