K223863 · Telesair, Inc. · BTT · Oct 13, 2023 · Anesthesiology
Device Facts
Record ID
K223863
Device Name
BONHAWA Respiratory Humidifier
Applicant
Telesair, Inc.
Product Code
BTT · Anesthesiology
Decision Date
Oct 13, 2023
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 868.5450
Device Class
Class 2
Attributes
Therapeutic, Pediatric
Indications for Use
The BONHAWA Respiratory Humidifier is intended to provide high flow warmed and humidified respiratory gases for administration to spontaneously breathing patients 20 kg and up, child to adults in hospitals. It adds heat and moisture to the flow of gases. The flow may be from 2 to 70 L/min depending on the patient interface. The BONHAWA Respiratory Humidifier provides high flow gases with simultaneous oxygen delivery to spontaneously breathing patients without bypassed upper airways in hospitals.
Device Story
Heated humidifier with integrated blower, heater plate, and heated breathing circuit; delivers warm, humidified respiratory gas via nasal cannula. Inputs: filtered ambient air and external low-pressure oxygen (LPO) source. Blower blends gases; internal sensor monitors oxygen concentration. Device controlled by professional users (e.g., Respiratory Therapists) to set flow rate, temperature, and oxygen concentration. Output: humidified, heated gas mixture. Clinical benefit: provides respiratory support for patients with respiratory distress or hypoxemia. Used in hospital settings. Output displayed on graphical user interface to inform clinicians of device function and gas delivery parameters; aids in clinical decision-making regarding patient oxygenation and respiratory support.
Clinical Evidence
Bench testing only. Performance validated against ISO 80601-2-74:2017, IEC 60601-1, IEC 60601-1-2, IEC 60601-1-8, ISO 10993-1, and ISO 18562-1. Testing confirmed humidity performance (>=33mg/L at 37°C), flow rate accuracy, and alarm system functionality.
Technological Characteristics
Heated humidifier with integrated blower. Materials: single-use water chamber, adapter, heated breathing circuit, nasal cannula. Sensing: internal oxygen sensor. Energy: 110-120V AC, 150W heater plate. Connectivity: standalone. Sterilization: single-use components. Standards: ISO 80601-2-74, IEC 60601-1, ISO 10993, ISO 18562.
Indications for Use
Indicated for spontaneously breathing patients (pediatric 20kg+ to adult) in hospitals requiring high-flow warmed/humidified respiratory gases with oxygen delivery. Contraindicated for patients with unresolved tension pneumothorax or facial trauma.
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.
Airvo 3 High Flow Humidified Oxygen Delivery (K221338)
Submission Summary (Full Text)
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October 13, 2023
Telesair, Inc. % Paul Dryden Consultant ProMedic Consulting LLC 131 Bay Point Dr. NE Saint Petersburg, Florida 33704
Re: K223863
Trade/Device Name: BONHAWA Respiratory Humidifier Regulation Number: 21 CFR 868.5450 Regulation Name: Respiratory Gas Humidifier Regulatory Class: Class II Product Code: BTT Dated: September 18, 2023 Received: September 19, 2023
Dear Paul Dryden:
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.
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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 System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30. Design controls; 21 CFR 820.90. Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the QS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).
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 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-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 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.
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-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Ting Song-S
for Ethan Nyberg Assistant Director DHT1C: Division of Sleep Disordered Breathing, Respiratory and
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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)
## K223863
#### Device Name
## Bonhawa Respiratory Humidifier
Indications for Use (Describe)
The BONHAWA Respiratory Humidifier is intended to provide high flow warmed and humidified respiratory gases for administration to spontaneously breathing patients 20 kg and up, child to adults in hospitals. It adds heat and moisture to the flow of gases. The flow may be from 2 to 70 L/min depending on the patient interface.
The BONHAWA Respiratory Humidifier provides high flow gases with simultaneous oxygen delivery to spontaneously breathing patients without bypassed upper airways in hospitals.
Type of Use (Select one or both, as applicable)
| XX Prescription Use (Part 21 CFR 801 Subpart D)
7 Over-The-Counter Use (21 CFR 801 Subpart C)
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FORM FDA 3881 (6/20) 443-6740 EF
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| Date Prepared: | 12-Oct-2023 |
|----------------------------|-------------------------------------------------------------------|
| Sponsor: | Telesair Inc<br>204 Technology Drive, Suite F<br>Irvine, CA 92618 |
| Official Contact: | Paul Dryden<br>ProMedic, LLC |
| Proprietary or Trade Name: | Bonhawa Respiratory Humidifier |
| Common/Usual Name: | Respiratory Gas Humidifier |
| Classification Name: | Respiratory Gas Humidifier |
| Regulation Number: | 21 CFR 868.5450 |
| Predicate Device: | Airvo 2 Humidifier series (K131895) |
| Classification Name: | Respiratory Gas Humidifier |
| Regulation Number: | 21 CFR 868.5450 |
| Reference Device: | Airvo 3 High Flow Humidified Oxygen Delivery (K221338) |
| Classification Name: | High Flow Humidified Oxygen Delivery Device |
| Regulation Number: | 21 CFR 868.5454 |
#### Device Description:
The BONHAWA Respiratory Humidifier is a heated humidifier with integrated blower, heater plate and heated breathing circuit that delivers warm and humidified respiratory gas to a patient via nasal cannula. A blower inside the device blends the externally provided oxygen with entrained filtered air and controls the gas flow rate delivered to the patient per the professional user established setting. An internal oxygen sensor monitors and reports the delivered oxygen concentration. The patient interface, heated breathing circuit chamber and chamber adapter are single use.
#### Principle of Operation:
The Bonhawa Respiratory Humidifier entrains filtered ambient air and mixes it with the user selected Oxygen source to achieve a intended oxygen concentration and flow. The respiratory gas is transported over a heated water bath to attain humidity and is delivered to the patient through heated breathing circuits and nasal interface. O2 concentration, respiratory gas flow, and temperature are controlled and monitored to achieve the intended use of the device. The device is primarily operated by professional users known as Respiratory Therapists.
#### Indications for Use:
The BONHAWA Respiratory Humidifier is intended to provide high flow warmed and humidified respiratory gases for administration to spontaneously breathing patients 20 kg and up, child to adults in hospitals. It adds heat and moisture to the flow of gases. The flow may be from 2 to 70 L/min depending on the patient interface.
The BONHAWA Respiratory Humidifier provides high flow gases with simultaneous oxygen delivery to spontaneously breathing patients without bypassed upper airways in hospitals.
#### Patient Population:
Humidifier is for patients, 20kg and above, in hospitals.
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#### Contraindications:
The Bonhawa Respiratory Humidifier is contraindicated for use with unresolved tension pneumothorax and facial trauma.
#### Substantial Equivalence:
The following information presents summary technological features in the determination of substantial equivalence comparison of the proposed Bonhawa Respiratory Humidifier to the identified predicate and reference devices.
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## 510(k) Summary Page 3 of 8
| Attributes | Subject Device<br>Telesair<br>Bonhawa Respiratory Humidifier<br>(K223863) | Predicate Device<br>Fisher & Paykel<br>Airvo 2 Humidifier Series<br>(K131895) | Reference<br>Fisher & Paykel<br>Airvo 3 High Flow<br>(K221338) | Differences |
|--------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Classification<br>Name | Humidifier, Respiratory Gas, (Direct<br>Patient Interface) | Humidifier, Respiratory Gas, (Direct<br>Patient Interface) | High Flow Humidified Oxygen<br>Delivery Device | Similar to the predicate |
| Regulation | 21 CFR 868.5450 | 21 CFR 868.5450 | 21 CFR 868.5454 | Similar |
| Indications for<br>Use | The BONHAWA Respiratory Humidifier<br>is intended to provide high flow warmed<br>and humidified respiratory gases for<br>administration to spontaneously breathing<br>patients 20 kg and up, child to adults in<br>hospitals. It adds heat and moisture to the<br>flow of gases. The flow may be from 2 to<br>70 L/min depending on the patient<br>interface.<br>The BONHAWA Respiratory Humidifier<br>provides high flow gases with<br>simultaneous oxygen delivery to<br>spontaneously breathing patients without<br>bypassed upper airways in hospitals. | The AIRVO 2 is for the treatment of<br>spontaneously breathing patients who<br>would benefit from receiving high<br>flow warmed and humidified<br>respiratory gases.<br>This includes patients who have had<br>upper airways bypassed. | The Airvo 3 is intended to provide high<br>flow warmed and humidified<br>respiratory gases for administration to<br>spontaneously breathing infant, child,<br>adolescent and adult patients in<br>hospitals and sub-acute facilities. It<br>adds heat and moisture to the flow of<br>air, or blended air/medical oxygen<br>mixture, and assures the user of the<br>air/oxygen mixture using an<br>integrated oxygen analyzer and visual<br>display. The flow may be from 2 to 70<br>L/min depending on the patient<br>interface.<br>The Airvo 3 provides high flow gases<br>with simultaneous oxygen delivery to<br>spontaneously breathing patients with<br>or without bypassed upper airways in<br>hospitals and sub-acute facilities.<br>The Airvo 3 provides high flow gases<br>with simultaneous oxygen delivery<br>through nasal cannula interfaces to<br>augment the breathing of spontaneously<br>breathing patients suffering from | Both the predicate,<br>reference and the<br>subject device have the<br>same overall intended use.<br>of delivering high flow<br>breathing gases<br>(air/oxygen mixtures) with<br>humidification for<br>patients<br>Subject is substantially<br>equivalent to both<br>predicate and reference |
| Attributes | Subject Device<br>Telesair<br>Bonhawa Respiratory Humidifier<br>(K223863) | Predicate Device<br>Fisher & Paykel<br>Airvo 2 Humidifier Series<br>(K131895) | Reference<br>Fisher & Paykel<br>Airvo 3 High Flow<br>(K221338) | Differences |
| | | | respiratory distress and/or hypoxemia<br>in the hospital setting.<br><br>The Airvo 3 is not intended to provide<br>total ventilatory requirements and is not<br>for use during field transport. | |
| Environment of<br>Use | BONHAWA respiratory humidifier is for<br>hospitals. | The AIRVO 2 is for patients in<br>hospitals and long-term care<br>facilities. | The AIRVO 3 is for patients in<br>hospitals and sub-acute facilities. | Similar but not for long-<br>term facility use |
| Patient<br>Population | Pediatric patients, 20kg and above, and<br>Adult | Pediatric to Adult | Infant to adults | Similar |
| Patients | Spontaneously breathing | Spontaneously breathing | Spontaneously breathing | Similar |
| Performance | Flow rate up to 70 lpm | Flow rate up to 60 lpm | Flow rate up to 70 lpm | Similar |
| Operating<br>principle | Constant flow of warmed, humidified gas<br>delivery via blower and humidifier | Constant flow of warmed, humidified<br>gas delivery via blower and humidifier | Constant flow of warmed, humidified<br>gas delivery via blower and humidifier | Similar |
| Oxygen input<br>sources | Low-Pressure Oxygen (LPO) low-pressure<br>connector (from rotameter) | Low-Pressure Oxygen (LPO) low-<br>pressure connector (from rotameter) | High-Pressure Oxygen (HPO) Inlet<br>from wall supply 280-600 kPa (41-87<br>psi) and<br>Low-Pressure Oxygen (LPO) low-<br>pressure connector (from rotameter) | Similar |
| Humidity source | Heated humidification chamber. | Heated humidification chamber. | Heated humidification chamber. | Similar |
| Humidity<br>Performance | At 37°C >= to 33mg/L<br>At 34°C >= to 12mg/L<br>At 31°C >= to 12mg/L | At 37°C >= to 33mg/L<br>At 34°C >= to 12mg/L<br>At 31°C >= to 12mg/L | At 37°C >= to 33mg/L<br>At 34°C >= to 12mg/L<br>At 31°C >= to 12mg/L | Similar |
| Flow range | Pediatric: 2 - 25 L/min<br>Adults: 10 - 70 L/min<br>The achievable flow range depends on the<br>patient interface selected. | Junior mode: 2 – 25 L/min<br>Default mode: 10 - 60 L/min | Infants: 2 - 25 L/min<br>Children: 2 – 36 L/min<br>Adolescents: 10 - 70 L/min<br>Adults: 20 - 70 L/min<br>The achievable flow range depends on<br>the patient interface selected. | Flow rates up to 60 lpm<br>are available for the<br>predicate. Up to 70 lpm<br>in the reference. |
| Temperature<br>range | 31 - 37 °C | 31 - 37 °C | 31 - 37 °C | Similar |
| Attributes | Subject Device | Predicate Device | Reference | Differences |
| | Telesair | Fisher & Paykel | Fisher & Paykel | |
| | Bonhawa Respiratory Humidifier | Airvo 2 Humidifier Series | Airvo 3 High Flow | |
| | (K223863) | (K131895) | (K221338) | |
| Ambient | 18 – 28 °C | 18 – 28 °C | 18 – 28 °C | Similar |
| operating | | | | |
| temperature | | | | |
| range | | | | |
| Alarms | Visual and audible alarm system.<br>Mute button. | Visual and audible alarm system.<br>Mute button. | Visual and audible alarm system.<br>Mute button. | Similar |
| Patient interfaces | Nasal cannula | Nasal cannula<br>And<br>Unsealed tracheostomy connector<br>And<br>Unsealed mask adapter | Nasal cannula<br>And<br>Unsealed tracheostomy connector<br>And<br>Unsealed mask adapter | Similar for the patient<br>without bypassed airway. |
| Heated Breathing | Heated breathing tube: single-lumen,<br>spiral heater wires | Heated breathing tube: single-lumen,<br>spiral heater wires | Heated breathing tube: single-lumen,<br>spiral heater wires | Similar |
| tube | | | | |
| Duration of Use - | 14 Days single patient use | 14 Days single patient use | 14 Days single patient use | Similar |
| Heated | | | | |
| Breathing Tube | | | | |
| Non Clinical | IEC 60601-1:2005+AMD1:2012<br>IEC 60601-1-2 2014<br>ANSI/AAMI ES 60601-1:2005 A1:2012<br>EN 60601-1:2006 + A1:2013<br>IEC 60601-1-8:2006+AMD1:2012<br>ISO 80601-2-74;2017<br>ISO 80601-2-55:2018 | IEC 60601-1:2005+AMD1:2012<br>IEC 60601-1-2 2014<br>ANSI/AAMI ES 60601-1:2005<br>A1:2012<br>EN 60601-1:2006 + A1:2013<br>IEC 60601-1-8:2006+AMD1:2012<br>ISO 80601-2-74:2017 | IEC 60601-1:2005+AMD1:2012<br>IEC 60601-1-2 2014<br>ANSI/AAMI ES 60601-1:2005<br>A1:2012<br>IEC 60601-1-6:2010 +AMD1:2013<br>IEC 60601-1-8:2006+AMD1:2012<br>ISO 80601-2-61:2017<br>ISO 80601-2-74:2017 | Similar |
| Testing |…
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.