K093862 · O-Two Medical Technologies, Inc. · BTL · May 6, 2010 · Anesthesiology
Device Facts
Record ID
K093862
Device Name
CAREVENT HANDHELD CPAP SYSTEM
Applicant
O-Two Medical Technologies, Inc.
Product Code
BTL · Anesthesiology
Decision Date
May 6, 2010
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 868.5925
Device Class
Class 2
Attributes
Therapeutic, Pediatric
Indications for Use
The CAREvent Handheld CPAP System is intended to provide CPAP to spontaneously breathing patients in the hospital and pre-hospital (EMS) environments.
Device Story
Pneumatically powered CPAP device providing constant positive airway pressure to spontaneously breathing patients. Input: pressurized gas (45-87 PSI). Operation: demand flow system with single control for CPAP pressure (0-20 cmH2O). Output: CPAP delivered via face mask. Used in pre-hospital (accident scenes, EMS vehicles) and hospital (emergency, surgery, recovery, air transport) settings by qualified medical personnel. Includes disposable patient circuit, face mask, and airway pressure manometer. Safety features include internal high-pressure release (40 cmH2O) and anti-suffocation valve. Provides respiratory support to benefit patients requiring CPAP therapy during transport or clinical care.
Clinical Evidence
No clinical data. Safety and efficacy established through bench testing per ISO 10651-5:2006, including performance testing for patient valve function, mechanical shock, vibration, delivered oxygen concentration, dead space, pressure limitation, demand valve function, and resistance to breathing. Environmental testing and durability of markings also performed.
Technological Characteristics
Pneumatic demand flow system. Materials in gas pathway identical to CAREvent ATV+ (K051469). Dimensions/form factor: rugged, lightweight enclosure. Energy source: pneumatic (45-87 PSI). Connectivity: none. Sterilization: disposable accessories. No software/algorithm.
Indications for Use
Indicated for spontaneous breathing adult and pediatric patients requiring respiratory support. Contraindicated for patients undergoing procedures with flammable anesthetic gases or hyperbaric treatment.
Regulatory Classification
Identification
A powered emergency ventilator is a demand valve or inhalator intended to provide emergency respiratory support by means of a face mask or a tube inserted into a patient's airway.
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CAREvent Handheld CPAP System
K093862
# 510(k) Summary
O-Two Medical Technologies 7575 Kimbel St. Mississauga, Ontario L5S1C8 Canada MAY - 6 2010 Tel - 905-677-9410 Official Contact: David Zhang Date the Summary was prepared: 11-Dec-2009 Proprietary or Trade Name: CAREvent Handheld CPAP System Common/Usual Name: CPAP device Classification Name: Powered emergency ventilator (21 CFR 868.5925, product code: BTL) and Positive End Expiratory Pressure Breathing Apparatus (21 CFR 868.5965, product code: BYE) Device Class: Class II Classification Panel: Anesthesiology Predicate Devices: CAREvent ATV+ Transport Ventilator · Manufactured by O-Two Medical Technologies Inc. · 510(k) number K051469 MACS CPAP System · Manufactured by Airon Corporation · 510(k) number K080692 PortO2Vent CPAP Oxygen Delivery System · Manufactured by Emergency Respiratory Products · 510(k) number K021520
## Device Description:
The proposed CAREvent Handheld CPAP System is a pneumatically powered device designed to provide CPAP (Constant Positive Airway Pressure) to spontaneously breathing patients who require respiratory support. The patient can breathe spontaneously through the
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device while the device provides constant positive airway pressure via a face mask. It has only one control for the adjustment of CPAP pressure from 0 to 20 cmH2O.
The device may be used in pre-hospital transport applications including accident scene, emergency rescue vehicles, hospital transport applications including emergency, surgery, post anesthesia/ recovery and air transport via helicopter or fixed wing.
The device is a restricted medical device intended for use by qualified medical personnel under the direction of a physician.
The main accessories for the proposed device are Patient Circuit, Face Mask and Airway Pressure Manometer. They are all disposable for single-patient use.
## Indications for Use:
The CAREvent Handheld CPAP System is intended to provide CPAP to spontaneously breathing patients in the hospital and pre-hospital (EMS) environments.
## Patient Population:
Spontaneous breathing adult and pediatric patients require respiratory support.
#### Contraindications:
- Patients undergoing procedures with flammable anesthetic gases;
- . Patients undergoing hyperbaric treatment.
## Summary of Technological Characteristics:
| Technological<br>Characteristics | CAREvent<br>Handheld CPAP<br>System | CAREvent ATV+<br>Ventilator<br>(K051469) | MACS CPAP<br>System<br>(K080692) | PortO₂Vent CPAP<br>(K021520) |
|----------------------------------|-----------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------|-------------------------------------------------------------------|
| Intended Use | Provide CPAP for<br>spontaneous<br>breathing patients<br>require respiratory<br>support | Pulmonary resuscitation<br>during respiratory and/<br>or cardiac arrest. The<br>CPAP subsystem<br>provides CPAP for<br>spontaneous breathing<br>patients | Provide CPAP for<br>spontaneous<br>breathing patients<br>via mask or endo-<br>tracheal tube | Provide CPAP for<br>spontaneous<br>breathing patients<br>via mask |
| Environments<br>of use | Hospital, pre-hospital<br>(EMS) environments | Pre-hospital, intra-<br>hospital and inter-<br>hospital transport | Hospital, pre-<br>hospital (EMS) and<br>sub-acute/ alternate<br>site facility<br>environments | Hospital, pre-<br>hospital (EMS)<br>environments |
| Patient<br>population | Spontaneous<br>breathing adult and<br>pediatric patients | Non-breathing and<br>Spontaneous breathing<br>patients (body weight<br>above 5 kg) | Spontaneous<br>breathing adult and<br>pediatric patients | Spontaneous<br>breathing adult and<br>pediatric patients |
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Premarket Notification 510(k) Section 5 – 510(k) Summary
CAREvent Handheld CPAP System
| Operating<br>principles | Pneumatic, demand<br>flow system | Pneumatic, demand flow system | Pneumatic, demand<br>flow system | Pneumatic, demand<br>flow system |
|-----------------------------------|---------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------|--------------------------------------------------------------------------------|--------------------------------------------------------------------------------|
| Input pressure | 45 to 87 PSI | 45 to 70 PSI | 40 to 70 PSI | 40 to 70 PSI |
| Patient circuit | Tubing with external<br>expiratory valve,<br>manometer and<br>mask | Tubing with external<br>expiratory valve and<br>mask | Tubing with external<br>expiratory valve and<br>mask | Tubing with external<br>expiratory valve and<br>mask |
| Enclosure | Rugged, lightweight | Rugged, lightweight | Rugged, lightweight | Rugged, lightweight |
| Displays | Manometer | Manometer | Manometer | Manometer |
| Safety features | Internal high<br>pressure release (at<br>40 cmH2O), anti-<br>suffocation valve on<br>patient valve port | Internal high pressure<br>release, anti-suffocation<br>valve | Internal high<br>pressure release (at<br>42 cmH2O), anti-<br>suffocation valve | Internal high<br>pressure release (at<br>35 cmH2O), anti-<br>suffocation valve |
| Patient support<br>modes | CPAP | IMV, CPAP | CPAP | CPAP |
| Peak Flow on<br>Demand<br>(L/min) | 120 | > 100 | 140 | 100 |
| CPAP levels<br>(cmH2O) | 0 - 20 | 0 - 20 | 0 - 20 | 0 - 20 |
| Internal oxygen<br>control | Pure oxygen only | 2 position, 100% or 60% | 2 position, 100% or<br>65% | Pure oxygen only |
| Materials in gas<br>pathway | Identical to<br>CAREvent ATV+<br>ventilator | Cleared in K052469 | Unknown | Unknown |
| Accessories | Disposable patient<br>circuit with mask,<br>head strap,<br>manometer, oxygen<br>hose | Disposable patient<br>circuit with mask, head<br>strap, oxygen hose | Disposable patient<br>circuit with mask,<br>head strap, oxygen<br>hose | Disposable patient<br>circuit with mask,<br>head strap, oxygen<br>hose |
## Summary of Non-Clinical Testing
・
The essential performance of the CAREvent Handheld CPAP System has been comprehensively tested as per requirements of ISO 10651-5:2006 and are summarized as follows:
## Summary of Bench Testing - CAREvent® Handheld CPAP System
| Scope | Standard applied/<br>Acceptance criteria | Testing Org. | Test Result | Title of Test Report | |
|-----------------------------------|-------------------------------------------------------------|------------------------------------------------------|-------------------------------------|------------------------------|-----------------------------------------------------------------------------------------|
| Safety & Essential<br>Performance | ISO10651-5:2006<br>Product Specifications | O-Two Medical | Comply | ISO10651-5:2005<br>checklist | |
| | Premarket Notification 510(k)<br>Section 5 - 510(k) Summary | | | | |
| | Patient Valve<br>function after<br>contamination | ISO10651-5:2006<br>Clause 6.1.1 | O-Two Medical | Comply | Functional Test of<br>CARevent CPAP after<br>Contamination with<br>Vomits |
| | Function Test<br>after Reassembly | ISO10651-5:2006<br>Clause 6.1.3 | O-Two Medical | Comply | Function Test After<br>Reassembly |
| | Mechanical Shock | ISO10651-5:2006<br>Clause 6.3.1, 6.3.3 | O-Two Medical | Comply | Drop Test/ Immersion in<br>Water of CAREvent<br>CPAP |
| | | ISO10651-5:2006<br>Clause 6.3.2 | O-Two Medical | Comply | Splash-proof Test |
| | Delivered oxygen<br>concentration | ISO10651-5:2006<br>Clause 7.1.1 | O-Two Medical | Comply | Delivered Oxygen<br>Concentration of<br>CAREvent CPAP |
| | Inadvertent PEEP<br>& Continuing<br>Expiratory Pressur | ISO10651-5:2006<br>Clause 7.1.3, 7.1.4 | O-Two Medical | Comply | Inadvertent PEEP &<br>Inadvertent Continuing<br>Expiratory Pressure of<br>CAREvent CPAP |
| | Dead Space | ISO10651-5:2006<br>Clause 7.1.5 | O-Two Medical | Comply | Dead Space of<br>CAREvent CPAP |
| | Pressure limitation | ISO10651-5:2006<br>Clause 7.2.4, 7.2.5 | O-Two Medical | Comply | Pressure Limitation of<br>CAREvent CPAP |
| | Demand Valve | ISO10651-5:2006<br>Clause 7.2.9 | O-Two Medical | Comply | Demand Valve Function<br>of CAREvent CPAP |
| | Durability of<br>Markings | ISO10651-5:2006<br>Clause 8.2.2 | O-Two Medical | Comply | Durability of Markings |
| | Inspiratory &<br>Expiratory<br>Resistance | ISO10651-5:2006<br>Clause 7.1.2 | O-Two Medical | Comply | Resistance of CARevent<br>CPAP to Spontaneous<br>Breathing |
| | Expiratory flow<br>characteristics | Adequatly to reduce<br>carbon dioxide<br>rebreathing | O-Two Medical | Comply | Expiratory<br>Characteristics Test |
| | Static pressure<br>testing | +/- 10% | O-Two Medical | Comply | Static Pressure of<br>CAREvent CPAP |
| | Accuracy of<br>pressure gauge | +/- 4% of the full<br>range | O-Two Medical | Comply | CAREvent CPAP<br>Pressure Gauge Accuracy<br>Test |
| | Environmental | ISO10651-5:2006<br>Clause 6.2 | BET Service Inc.<br>/ O-Two Medical | Comply | CPAP Unit<br>Environmental test-<br>Mar.25-26, 2010<br>Nov. 2009 |
| Vibration/<br>Shock | Sinusodial<br>vibration | IEC60068-2-6 Test Fc | Exova | Comply | Vibration & Shock Testing<br>on CAREvent handheld<br>CPAP System |
| | Random vibration | IEC60068-2-36 Test<br>Fdb | | Comply | CPAP System<br>Report # 10-03-C0058 |
| | Bump | IEC60068-2-29 Test Eb | | Comply | |
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# Premarket Notification 510(k)
.
.
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Based on the above Non-Clinical testing results, the CAREvent Handheld CPAP System performs as intended according to its performance specification. Positive results from the Vibration and Shock testing also indicated that safety and efficacy of the device will not be adversely affected during transport and storage .
## Substantial Equivalence:
The CAREvent Handheld CPAP System shares substantial equivalency with the MACS CPAP System and PortO2 Vent CPAP Oxygen Delivery System as follows:
- All devices have the same intended use as well as target patient population; .
- They are all pneumatic controlled; .
- . They are all designed with the same operating principles:
- . The essential clinical function of each device is significantly similar;
- . The range of clinical function of each device is similar or significantly overlap;
- . The accessories for all the devices are similar.
The CAREvent Handheld CPAP System also uses the similar components as the CPAP subsystem inside CAREvent ATV+ Ventilator. So the materials in gas pathway of CAREvent Handheld CPAP System are identical to the materials of CAREvent ATV+ which had been cleared in K052469.
Although clinical testing was not performed on the CAREvent Handheld CPAP System. safety and efficacy of the device are established through the non-clinical testing. There are no significant differences that affect the safety or effectiveness of the intended device as compared to the predicate devices.
#### Conclusion:
The proposed device is substantially equivalent to the predicate devices. K051469. K080692 and K021520.
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## DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/5/Picture/1 description: The image shows the logo for the Department of Health & Human Services - USA. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. Inside the circle is a stylized emblem featuring three abstract, curved lines that resemble a bird in flight or a symbolic representation of human services.
#### Public Health Service
MAY - 6 2010
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002
Mr. David Zhang Quality Assurance Manager O- Two Medical Technologies, Incorporated 7575 Kimbel Street Mississauga, Ontario Canada L5S 1C8
Re: K093862
Trade/Device Name: Carevent Handheld CPAP System Regulation Number: 21 CFR 868.5925 Regulation Name: Powered Emergency Ventilator, Positive End Expiratory Pressure Breathing Attachment Regulatory Class: II Product Code: BTL, BYE Dated: April 26, 2010 Received: April 30, 2010
Dear Mr. David Zhang:
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.
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Page 2- Mr. David Zhang
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device 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 803); good manufacturing practice requirements as set forth in the quality systems (QS) 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 go to
http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR 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 Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.
Sincerely yours.
Wh for
Anthony D. Watson, B.S., M.S., M.B.A Director Division of Anesthesiology, General Hospital, Infection Control and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use Statement
Page __ of
510(k) Number:
(To be assigned)
Device Name:
CAREvent Handheld CPAP System
Indications for Use:
The CAREvent Handheld CPAP System is intended to provide CPAP to spontaneously breathing patients in the hospital and pre-hospital (EMS) environments.
Prescription Use _X (21 CFR 801 Subpart C) AND/OR
Over-The-Counter Use (Part 21 CFR 801 Subpart D)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
L Schullton
(Division Sign-Off) Division of Anesthesiology, General Hospital Infection Control, Dental Devices
K093862 510(k) Number:
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.