The RXiBreeze™ PAP system delivers positive airway pressure therapy for the treatment of obstructive sleep apnea in spontaneously breathing adult patients. It is for single patient use in the home, hospital, or institutional environment.
Device Story
Microprocessor-controlled positive airway pressure (PAP) ventilator; delivers continuous positive airway pressure (CPAP) to treat obstructive sleep apnea (OSA). Device takes ambient air; pressurizes stream via internal blower; delivers air through connection tube and mask to patient's nose. Integrated humidifier warms/humidifies air. Integrated WiFi module transfers therapy data. Used in home, hospital, or institutional settings by adult patients. Healthcare providers use therapy data for clinical management. Benefits include relief of spontaneous breathing pauses during sleep. Device includes expiratory pressure relief (iPR) and ramp functionality.
Clinical Evidence
Bench testing only. No clinical data. Testing included electromagnetic compatibility (IEC 60601-1-2), electrical safety (IEC 60601-1), home healthcare environment requirements (IEC 60601-1-11), sleep apnea therapy performance (ISO 80601-2-70), respiratory humidification (ISO 80601-2-74), biocompatibility (ISO 10993 series and ISO 18562 series), and software/cybersecurity validation.
Technological Characteristics
Microprocessor-controlled CPAP device. Features integrated humidifier, WiFi connectivity, and air filtration. Pressure range 4-20 cmH2O. Power: 100-240V AC. Protection: Class II, Type BF, IP22. Biocompatibility per ISO 10993 and ISO 18562. Standards: IEC 60601-1, IEC 60601-1-2, ISO 80601-2-70, ISO 80601-2-74.
Indications for Use
Indicated for treatment of obstructive sleep apnea in spontaneously breathing adult patients. For single patient use in home, hospital, or institutional environments.
Regulatory Classification
Identification
A noncontinuous ventilator (intermittent positive pressure breathing-IPPB) is a device intended to deliver intermittently an aerosol to a patient's lungs or to assist a patient's breathing.
{0}
FDA U.S. FOOD & DRUG ADMINISTRATION
July 23, 2026
Resvent Medical Technology Co., Ltd.
% Lisa Pritchard
VP, Regulatory, Quality, Clinical and Engineering
DuVal & Associates, P.A.
825 Nicollet Mall, Suite 1820
Medical Arts Bldg.
Minneapolis, Minnesota 55402
Re: K253044
Trade/Device Name: RXiBreeze PAP System (RXiBreeze 20C)
Regulation Number: 21 CFR 868.5905
Regulation Name: Noncontinuous ventilator (IPPB)
Regulatory Class: Class II
Product Code: BZD
Dated: July 20, 2026
Received: July 20, 2026
Dear Lisa Pritchard:
We have reviewed your section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (the Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database available at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
U.S. Food & Drug Administration
10903 New Hampshire Avenue
Silver Spring, MD 20993
www.fda.gov
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K253044 - Lisa Pritchard
Page 2
Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device" (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).
Your device is also subject to, among other requirements, the Quality Management System Regulation (QMSR) (21 CFR Part 820), which includes, but is not limited to, ISO 13485 clause 7.3 (Design controls), ISO 13485 clause 8.3 (Nonconforming product), ISO 13485 clause 8.5.2 (Corrective action), and ISO 13485 clause 8.5.3 (Preventative action). Please note that regardless of whether a change requires premarket review, the QMSR requires device manufacturers to review and approve changes to device design and production (ISO 13485 clause 7.3 and ISO 13485 clause 7.5) and document changes and approvals in the Medical Device File (ISO 13485 clause 4.2.3).
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reporting-combination-products); good manufacturing practice requirements as set forth in the Quality Management System Regulation (QMSR) (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.
All medical devices, including Class I and unclassified devices and combination product device constituent parts are required to be in compliance with the final Unique Device Identification System rule ("UDI Rule"). The UDI Rule requires, among other things, that a device bear a unique device identifier (UDI) on its label and package (21 CFR 801.20(a)) unless an exception or alternative applies (21 CFR 801.20(b)) and that the dates on the device label be formatted in accordance with 21 CFR 801.18. The UDI Rule (21 CFR 830.300(a) and 830.320(b)) also requires that certain information be submitted to the Global Unique Device Identification Database (GUDID) (21 CFR Part 830 Subpart E). For additional information on these requirements, please see the UDI System webpage at https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance/unique-device-identification-system-udi-system.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-devices/medical-device-safety/medical-device-reporting-mdr-how-report-medical-device-problems.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-
{2}
K253044 - Lisa Pritchard
Page 3
assistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Binoy J. Mathews -S Digitally signed by Binoy J. Mathews -S Date: 2026.07.23 16:43:52 -04'00'
For
James J. Lee, Ph.D.
Director
DHT1C: Division of Anesthesia,
Respiratory, and Sleep 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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DEPARTMENT OF HEALTH AND HUMAN SERVICES
Food and Drug Administration
# **Indications for Use**
Form Approved: OMB No. 0910-0120
Expiration Date: 07/31/2026
See PRA Statement below.
510(k) Number (if known)
K253044
Device Name
RXiBreeze PAP System (RXiBreeze 20C)
Indications for Use (Describe)
The RXiBreeze™ PAP system delivers positive airway pressure therapy for the treatment of obstructive sleep apnea in spontaneously breathing adult patients. It is for single patient use in the home, hospital, or institutional environment.
Type of Use (Select one or both, as applicable)
☑ Prescription Use (Part 21 CFR 801 Subpart D)
☐ Over-The-Counter Use (21 CFR 801 Subpart C)
**CONTINUE ON A SEPARATE PAGE IF NEEDED.**
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FORM FDA 3881 (8/23)
Page 1 of 1
PSC Publishing Services (301) 443-6740 EF
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K253044
# 510(k) Summary
# K253044
# 1. Submitter Information
Submitter
Resvent Medical Technology Co., Ltd.
BC601, Gaoxinqi Factory, District 67, Xingdong Community, Xin'an Street, Bao'an District, 518100 Shenzhen, PEOPLE'S REPUBLIC OF CHINA
Tel: +8675523027370
Contact Person (Title): Mr. Harry Wang (Regulatory Affairs Director)
harry.wang@resvent.com
2. Date Prepared: July 22, 2026
# 3. Subject Device Information
Device Trade Name: RXiBreeze PAP System (RXiBreeze 20C)
Common Name: Noncontinuous ventilator (IPPB)
Regulation Name Ventilator, Non-Continuous (Respirator)
Regulation Number: 868.5905
Product Codes: BZD
Regulatory Class: II
# 4. Predicate Device Information
Predicate Device: K153387, Luna® CPAP System, Product Code BZD
Reference Device: K211155, M1 Mini Auto CPAP System, Product Code BZD
# 5. Device Description
The RXiBreeze PAP System (Model RXiBreeze 20C) is a prescription only,
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K253044
microprocessor controlled, positive airway pressure ventilator device intended to treat individuals who are diagnosed with obstructive sleep apnea (OSA). The device provides continuous positive airway pressure (CPAP). Its design includes an integrated humidifier, uses an external AC power supply, and an integrated WIFI module for the transfer of therapy data.
The RXiBreeze PAP System is designed to release a continuous, slightly pressurized stream of air directly into a person's nose via connection tube and mask, which aids obstructed breathing during sleep, effectively treating the spontaneous pauses in breath that are associated with OSA.
This device is intended to be used with FDA-cleared masks and breathing tubes.
# 6. Indications for Use
The RXiBreeze PAP system delivers positive airway pressure therapy for the treatment of obstructive sleep apnea in spontaneously breathing adult patients. It is for single patient use in the home, hospital, or institutional environment.
2 /11
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K253044
7. Comparison of Intended Use and Technological Characteristics of the Subject and Predicate Devices
| Item | Subject Device: RXiBreeze PAP System | Predicate Device: K153387 Luna® CPAP System | Reference Device: K211155 M1 Mini Auto CPAP System | Comparison |
| --- | --- | --- | --- | --- |
| Regulation number | 868.5905 | 868.5905 | 868.5905 | Identical |
| Classification | II | II | II | Identical |
| Product Code | BZD | BZD | BZD | Identical |
| Intended Use | Delivery of positive airway pressure for treatment of obstructive sleep apnea | Delivery of positive airway pressure for treatment of obstructive sleep apnea | Delivery of positive airway pressure for treatment of obstructive sleep apnea | Identical |
| Indications for use | The RXiBreeze PAP system delivers positive airway pressure therapy for the treatment of obstructive sleep apnea in spontaneously breathing adult patients. It is for single patient use in the home, hospital, or institutional environment. | The Luna® CPAP System is intended to delivery positive pressure for the treatment of Obstructive Sleep Apnea. The optional integrated heated humidifier is indicated for the humidification and warming of air from the flow generator. This device is intended for single patient use by prescription in the home / institutional environment on adult patients. | Auto CPAP System is a CPAP (Continuous Positive Airway Pressure) device designed for the treatment of adult Obstructive Sleep Apnea (OSA) only, either in the hospital or at home. Auto CPAP System is for prescription use only. It is a travel CPAP device intended for single-patient use. LightTrip App is a mobile application for patients to remotely operate BMC Mini serial devices, and transmit, store and display usage and treatment information. It can also receive | Similar to predicate device |
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K253044
| Item | Subject Device: RXiBreeze PAP System | Predicate Device: K153387 Luna® CPAP System | Reference Device: K211155 M1 Mini Auto CPAP System | Comparison |
| --- | --- | --- | --- | --- |
| | | | parameters and device firmware upgrade data from the cloud, and then transmit these data to the device. The LightTrip app also allows healthcare professionals to remotely configure compatible OSA therapy devices. LightTrip App is for prescription use only. | |
| Enviornment of Use | Home and healthcare facilities | Home and healthcare facilities | Home and healthcare facilities | Identical to predicate device |
| Therapy Delivered | CPAP | CPAP | CPAP, Auto CPAP | Identical to predicate device |
| Operating Temperature | 5 to 35° C | 5 to 35° C | Not available | Identical to predicate device |
| Storage/Transport Temperature | -25 to 60° C | -25 to 70° C | Not available | Similar to predicate device |
| Storage/Transport Humidity | 5%-95% (non-condensing) | Up to 93% Non-condensing | Not available | Similar to predicate device |
4 /11
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K253044
| Item | Subject Device: RXiBreeze PAP System | Predicate Device: K153387 Luna® CPAP System | Reference Device: K211155 M1 Mini Auto CPAP System | Comparison |
| --- | --- | --- | --- | --- |
| Atmospheric Pressure | 70 to 106 kPa | 76 to 106 kPa | Not available | Similar to predicate device |
| AC Power Consumption | 100-240V~, 50/60 Hz, 2A Max | 100-240VAC, 50/60Hz, 2.0A max | 100-240VAC, 50/60Hz, 1.0A max | Identical to predicate device |
| Software | Microprocessor controlled | Microprocessor controlled | Microprocessor controlled | Identical |
| IEC 60601-1 Classification for Protection Against Electric Shock | Class II | Class II | Class II | Identical |
| IEC 60601-1 Degree of Protection Against Electric Shock | Type BF | Type BF | Type BF | Identical |
| Degree of Protection Against Ingress of Water | IP22 | IP22 | IP22 | Identical |
| Pressure Range | 4-20 cmH₂O | 4-20 cmH₂O | 4-20 cmH₂O | Identical |
5 /11
{9}
K253044
| Item | Subject Device: RXiBreeze PAP System | Predicate Device: K153387 Luna® CPAP System | Reference Device: K211155 M1 Mini Auto CPAP System | Comparison |
| --- | --- | --- | --- | --- |
| Expiratory Pressure Relief | Yes iPR function Range: Off, 1 ~ 3 | Yes Reslex function Range: Off, 1 ~ 3 | Yes Reslex function Range: Off, 1 ~ 3 | Similar to predicate and reference devices |
| Sound Pressure Level | 30 dB(A) with uncertainty of 2dB(A) | <30 dB, when the device is working at the pressure of 10 cmH₂O | <30 dB, when the device is working at the pressure of 10 cmH₂O | Similar |
| Air filter | Yes | Yes | Yes | Identical |
| Ramp | 0-60 minutes | 0-60 minutes | 0-60 minutes | Identical to predicate and reference devices |
| Integrated Humidifier | Yes | Yes | No | Identical |
| Static pressure accuracy | ±0.5 cmH₂O with a measurement uncertainty of 1.87% | ±1 cmH₂O | ±(0.5 hPa + 4%) | Similar to predicate and reference devices |
| Dynamic pressure accuracy | ±1 cmH₂O with a measurement uncertainty of 2.55% | ±1 cmH₂O | ±(0.5 hPa + 4%) | Identical to predicate device |
| Humidifier water capacity | 290 ml (MAX Water Level) | 350 ml at recommended water level | None | Similar to predicate device and reference |
6 /11
{10}
K253044
| Item | Subject Device: RXiBreeze PAP System | Predicate Device: K153387 Luna® CPAP System | Reference Device: K211155 M1 Mini Auto CPAP System | Comparison |
| --- | --- | --- | --- | --- |
| | | | | device |
| Wireless function | WiFi | N/A | Bluetooth | Different from predicate device, similar to reference device |
| Remote programing | No | No | Yes | Identical to predicate device |
7 / 11
{11}
K253044
As shown in the table above, the proposed RXiBreeze PAP System and the selected predicate device and reference device do not have identical indications for use statements; however, their intended uses are the same (delivery of positive airway pressure for treatment of obstructive sleep apnea). The RXiBreeze PAP System also has the same therapy delivered, operating temperature, atmospheric pressure, AC power consumption, software type, IEC 60601 classification, ingress protection, pressure range, air filter, ramp, integrated humidifier, and humidity range as the primary predicate device.
The differences between the RXiBreeze PAP System and the primary predicate device include storage/transportation temperature range, storage/transportation humidity range, expiratory pressure relief, sound pressure level, static pressure accuracy, humidifier capacity, and wireless function. All have been determined not to raise different questions of safety and effectiveness in comparison to the primary predicate device or reference devices.
### 8. Summary of Non-clinical Testing
The proposed device has been tested to all applicable guidance and standards that include:
- Electromagnetic Compatibility (EMC) of Medical Devices Guidance for Industry and Food and Drug Administration Staff
- Radio Frequency Wireless Technology in Medical Devices Guidance for Industry and Food and Drug Administration Staff
- IEC 60601-1: 2020 Medical electrical equipment - Part 1: General requirements for basic safety and essential performance
- IEC 60601-1-2: 2020 Medical electrical equipment – Part 1-2: General requirements for basic safety and essential performance - Collateral standard: Electromagnetic compatibility – Requirements and tests
- IEC 60601-4-2 Medical electrical equipment - Part 4-2: Guidance and interpretation - Electromagnetic immunity: performance of medical electrical equipment and medical electrical systems
- ANSI C63.18-2014 American National Standard Recommended Practice for an On-Site, Ad Hoc Test Method for Estimating Electromagnetic Immunity of Medical Devices to Radiated Radio-Frequency (RF) Emissions from RF Transmitters
8 /11
{12}
K253044
- IEC 60601-1-11: 2020 Medical electrical equipment - Part 1-11: General requirements for basic safety and essential performance - Collateral Standard: Requirements for medical electrical equipment and medical electrical systems used in the home healthcare environment
- ISO 80601-2-70:2020 Medical electrical equipment – Part 2-70: Particular requirements for basic safety and essential performance of sleep apnoea breathing therapy equipment
- ISO 80601-2-74:2021 Medical electrical equipment – Part 2-74: Particular requirements for basic safety and essential performance of respiratory humidifying equipment
Software verification and validation testing were conducted, and documentation was provided as recommended by FDA's Guidance for Industry and FDA Staff:
- Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices
- Content of Premarket Submissions for Management of Cybersecurity in Medical Devices
Human factors validation was conducted according to FDA's Guidance for Industry and FDA Staff:
- Applying Human Factors and Usability Engineering to Medical Devices
The following Biocompatibility testing and assessment were performed according to applicable guidances and standards:
- Use of International Standard ISO 10993-1, "Biological evaluation of medical devices - Part 1: Evaluation and testing within a risk management process"
- ISO 10993-1: 2018 Biological evaluation of medical devices - Part 1: Evaluation and testing within a risk management process
- ISO 10993-5:2009 Biological evaluation of medical devices - Part 5: Tests for in vitro cytotoxicity
- ISO 10993-10:2021 Biological evaluation of medical devices - Part 10: Tests
9 /11
{13}
K253044
for skin sensitization
- ISO 10993-23: 2021 Biological evaluation of medical devices - Part 23: Tests for irritation
- ISO 10993-11: 2017 Biological evaluation of medical devices - Part 11: Tests for systemic toxicity
- ISO 10993-18: 2020/Amd 1: 2022 Biological evaluation of medical devices - Part 18: Chemical characterization of medical device materials within a risk management process
- ISO 10993-17: 2023 Biological evaluation of medical devices - Part 17: Toxicological risk assessment of medical device constituents
- ISO 18562-1: 2024 Biocompatibility evaluation of breathing gas pathways in healthcare applications - Part 1: Evaluation and testing within a risk management process
- ISO 18562-2: 2024 Biocompatibility evaluation of breathing gas pathways in healthcare applications - Part 2: Tests for emissions of particulate matter
- ISO 18562-3: 2024 Biocompatibility evaluation of breathing gas pathways in healthcare applications - Part 3: Tests for emissions of volatile organic compounds
- ISO 18562-4: 2024 Biocompatibility evaluation of breathing gas pathways in healthcare applications - Part 4: Tests for leachables in condensate
The following testing was also performed according to applicable guidances and standards:
- Reprocessing Medical Devices in Health Care Settings: Validation Methods and Labeling
- ANSI/AAMI ST98:2022 Cleaning validation of health care products - Requirements for development and validation of a cleaning process for medical devices
- AAMI TIR12:2020/(R)2023; Designing, testing, and labeling medical devices intended for processing by health care facilities: A guide for device manufacturers
- Storage and Transportation
- Service Life
10 /11
{14}
K253044
# 9. Conclusion
The comparison of features and specifications, and non-clinical performance testing demonstrate that the proposed device is substantially equivalent to the predicate.
Any differences do not raise different concerns of safety or effectiveness when compared to the predicate.
11 /11
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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).
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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.
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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.
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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.
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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.
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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.
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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.