Model number 1024 is a single patient, disposable device for dispensing pressurized metered dose inhaler (pMDI) medication into a breathing circuit, as prescribed by a physician or other licensed health care practitioner. The device is indicated for patients on a breathing circuit, for whom aerosol medication has been prescribed, in short and long term critical care environments. REF 1024 is intended for use only when connected to a 22 mm fitting. Model number 1024A is a single patient, disposable device for dispensing pressurized metered dose inhaler (pMDI) medication into a breathing circuit, as prescribed by a physician or other licensed health care practitioner. The device is indicated for patients on a breathing circuit, for whom aerosol medication has been prescribed, in short and long term critical care environments. REF 1024A is intended for use only when connected to a 22 mm fitting. Model number 1025 is a single patient, disposable device for dispensing pressurized metered dose inhaler (pMDI) medication into a breathing circuit, as prescribed by a physician or other licensed health care practitioner. The device is indicated for patients on a breathing circuit, for whom aerosol medication has been prescribed, in short and long term critical care environments. REF 1025 is intended for use only when connected to a 22 mm fitting. Model number 1025A is a single patient, disposable device for dispensing pressurized metered dose inhaler (pMDI) medication into a breathing circuit, as prescribed by a physician or other licensed health care practitioner. The device is indicated for patients on a breathing circuit, for whom aerosol medication has been prescribed, in short and long term critical care environments. REF 1025A is intended for use only when connected to a 22 mm fitting. Model number 1543 is a single patient, disposable device for dispensing pressurized metered dose inhaler (pMDI) medication into a breathing circuit, as prescribed by a physician or other licensed health care practitioner. The device is indicated for patients on a breathing circuit, for whom aerosol medication has been prescribed, in short and long term critical care environments. REF 1543 is intended for use only when connected to a 15 mm fitting. Model number 1543A is a single patient, disposable device for dispensing pressurized metered dose inhaler (pMDI) medication into a breathing circuit, as prescribed by a physician or other licensed health care practitioner. The device is indicated for patients on a breathing circuit, for whom aerosol medication has been prescribed, in short and long term critical care environments. REF 1543A is intended for use only when connected to a 15 mm fitting.
Device Story
MiniSpacer® 1024, 1025, 1543 and 1024A, 1025A, 1543A are breathing circuit connectors/actuators; function as interface between pressurized metered dose inhaler (pMDI) canisters and breathing circuits; used in critical care environments; operated by clinicians; device receives pMDI medication as input; transforms input via dual spray orifice to deliver aerosolized medication into breathing circuit; facilitates medication delivery to patients on mechanical ventilation or other breathing circuits; single-patient, disposable design.
Clinical Evidence
No clinical or animal testing performed. Substantial equivalence supported by bench testing and toxicological assessment of modified body resin material.
Indicated for patients on a breathing circuit requiring aerosol medication in short or long-term critical care environments. Prescription use only.
Regulatory Classification
Identification
A nebulizer is a device intended to spray liquids in aerosol form into gases that are delivered directly to the patient for breathing. Heated, ultrasonic, gas, venturi, and refillable nebulizers are included in this generic type of device.
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Image /page/0/Picture/0 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). The logo consists of two parts: the Department of Health & Human Services logo on the left and the FDA logo on the right. The FDA logo features the letters 'FDA' in a blue square, followed by the words 'U.S. FOOD & DRUG ADMINISTRATION' in blue text.
June 18, 2024
Thayer Medical Corporation % Amy Fowler Regulatory Counsel Pathmaker FDA Law, PLLC 1415 Lilac Dr N Suite 270 Minneapolis, Minnesota 55422
Re: K233553
Trade/Device Name: MiniSpacer® 1024, 1025, 1543 and 1024A, 1025A, 1543A Dual Spray MDI Adapter Regulation Number: 21 CFR 868.5630 Regulation Name: Nebulizer Regulatory Class: Class II Product Code: CAF Dated: May 17, 2024 Received: May 20, 2024
Dear Amy Fowler:
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,
Ethan L. Nyberg -S
Ethan Nyberg, Ph.D. 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) K233553
#### Device Name
MiniSpacer® 1024, 1025, 1543 and 1024A, 1025A, 1543A Dual Spray MDI Adapter
#### Indications for Use (Describe)
Model number 1024 is a single patient, disposable device for dispensing pressurized metered dose inhaler (pMDI) medication into a breathing circuit, as prescribed by a physician or other licensed health care practitioner. The device is indicated for patients on a breathing circuit, for whom aerosol medication has been prescribed, in short and long term critical care environments. REF 1024 is intended for use only when connected to a 22 mm fitting.
Model number 1024A is a single patient, disposable device for dispensing pressurized metered dose inhaler (pMDI) medication into a breathing circuit, as prescribed by a physician or other licensed health care practitioner. The device is indicated for patients on a breathing circuit, for whom aerosol medication has been prescribed, in short and long term critical care environments. REF 1024A is intended for use only when connected to a 22 mm fitting.
Model number 1025 is a single patient, disposable device for dispensing pressurized metered dose inhaler (pMDI) medication into a breathing circuit, as prescribed by a physician or other licensed health care practitioner. The device is indicated for patients on a breathing circuit, for whom aerosol medication has been prescribed, in short and long term critical care environments. REF 1025 is intended for use only when connected to a 22 mm fitting.
Model number 1025A is a single patient, disposable device for dispensing pressurized metered dose inhaler (pMDI) medication into a breathing circuit, as prescribed by a physician or other licensed health care practitioner. The device is indicated for patients on a breathing circuit, for whom aerosol medication has been prescribed, in short and long term critical care environments. REF 1025A is intended for use only when connected to a 22 mm fitting.
Model number 1543 is a single patient, disposable device for dispensing pressurized metered dose inhaler (pMDI) medication into a breathing circuit, as prescribed by a physician or other licensed health care practitioner. The device is indicated for patients on a breathing circuit, for whom aerosol medication has been prescribed, in short and long term critical care environments. REF 1543 is intended for use only when connected to a 15 mm fitting.
Model number 1543A is a single patient, disposable device for dispensing pressurized metered dose inhaler (pMDI) medication into a breathing circuit, as prescribed by a physician or other licensed health care practitioner. The device is indicated for patients on a breathing circuit, for whom aerosol medication has been prescribed, in short and long term critical care environments. REF 1543A is intended for use only when connected to a 15 mm fitting.
| Type of Use (Select one or both, as applicable) | |
|----------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------|
| <div> <span> <input checked="true" type="checkbox"/> Prescription Use (Part 21 CFR 801 Subpart D) </span> </div> | <div> <span> <input type="checkbox"/> Over The Counter Use (21 CFR 801 Subpart C) </span> </div> |
### CONTINUE ON A SEPARATE PAGE IF NEEDED.
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This section applies only to requirements of the Paperwork Reduction Act of 1995.
## *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff@fda.hhs.gov
"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."
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Image /page/5/Picture/0 description: The image shows the logo for Thayer Medical. The logo consists of a blue square with white circles inside, arranged in a pattern that resembles a dome or arch. Above the square, there are several black dots arranged in a curved line, creating a visual effect similar to a dotted line or a series of points. Below the square, the words "THAYER" and "MEDICAL" are stacked on top of each other in a bold, sans-serif font.
### Date Prepared: June 17, 2024
### SUBMITTER:
| Name: | Thayer Medical Corporation |
|-----------------|-------------------------------|
| Address: | 4575 South Palo Verde Road |
| | Tucson, AZ 85714-1961 USA |
| Telephone: | 520-790-5393 |
| FAX: | 520-790-5854 |
| Contact Person: | Amy Fowler, Pathmaker FDA Law |
| | 1415 Lilac Dr N Suite 270 |
| | Minneapolis, MN 55422 |
| | fowler@pathmakerlaw.com |
| | 612-356-9653 |
#### SPONSOR CONTACT:
Jim Strickland, CEO regulatory@thayermedical.com Jim.strickland@thayermedical.com 520-790-5393 520-790-5854
1543A Dual Spray MDI Adapter
MiniSpacer® 1024, 1025, 1543 and 1024A, 1025A,
FAX:
Telephone:
#### NAME OF DEVICE:
Trade Name / Device Name:
Common / Usual Name:
CLASSIFICATION:
| Regulation Name: | Nebulizer |
|-----------------------|-----------------|
| Regulation Number: | 21 CFR 868.5630 |
| Classification Panel: | Anesthesiology |
#### DEVICE DESCRIPTION:
Model numbers 1024, 1025, 1543, 1024A, 1025A and 1543A are breathing circuit connectors that function as general purpose actuators for dispensing prescribed aerosolized medication from a pressurized metered dose inhaler (hereafter referred to as "pMDI") canister into a breathing circuit.
Actuator
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Image /page/6/Picture/0 description: The image is a logo for Thayer Medical. The logo features the words "THAYER MEDICAL" in bold, black, sans-serif font, stacked on top of each other. Above the text is a blue square filled with white circles of varying sizes, arranged in rows. Above the blue square are three rows of black dots, decreasing in number from top to bottom, creating a visual effect of radiating outward.
# INDICATIONS FOR USE:
Model number 1024 is a single patient, disposable device for dispensing pressurized metered dose inhaler (pMDI) medication into a breathing circuit, as prescribed by a physician or other licensed health care practitioner. The device is indicated for patients on a breathing circuit, for whom aerosol medication has been prescribed, in short and long term critical care environments. REF 1024 is intended for use only when connected to a 22 mm fitting.
Model number 1024A is a single patient, disposable device for dispensing pressurized metered dose inhaler (pMDI) medication into a breathing circuit, as prescribed by a physician or other licensed health care practitioner. The device is indicated for patients on a breathing circuit, for whom aerosol medication has been prescribed, in short and long term critical care environments. REF 1024A is intended for use only when connected to a 22 mm fitting.
Model number 1025 is a single patient, disposable device for dispensing pressurized metered dose inhaler (pMDI) medication into a breathing circuit, as prescribed by a physician or other licensed health care practitioner. The device is indicated for patients on a breathing circuit, for whom aerosol medication has been prescribed, in short and long term critical care environments. REF 1025 is intended for use only when connected to a 22 mm fitting.
Model number 1025A is a single patient, disposable device for dispensing pressurized metered dose inhaler (pMDI) medication into a breathing circuit, as prescribed by a physician or other licensed health care practitioner. The device is indicated for patients on a breathing circuit, for whom aerosol medication has been prescribed, in short and long term critical care environments. REF 1025A is intended for use only when connected to a 22 mm fitting.
Model number 1543 is a single patient, disposable device for dispensing pressurized metered dose inhaler (pMDI) medication into a breathing circuit, as prescribed by a physician or other licensed health care practitioner. The device is indicated for patients on a breathing circuit, for whom aerosol medication has been prescribed, in short and long term critical care environments. REF 1543 is intended for use only when connected to a 15 mm fitting.
Model number 1543A is a single patient, disposable device for dispensing pressurized metered dose inhaler (pMDI) medication into a breathing circuit, as prescribed by a physician or other licensed health care practitioner. The device is indicated for patients on a breathing circuit, for whom aerosol medication has been prescribed, in short and long term critical care environments. REF 1543A is intended for use only when connected to a 15 mm fitting.
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Image /page/7/Picture/0 description: The image shows the logo for Thayer Medical. The logo consists of the words "THAYER MEDICAL" in a bold, sans-serif font, with "THAYER" stacked on top of "MEDICAL". Above the text is a blue square with a pattern of white circles inside, resembling a stylized lung or a cluster of cells. Above the blue square is a series of black dots arranged in an arc, creating a visual effect similar to a shadow or a gradient.
Thayer Medical Corporation 4575 South Palo Verde Road Tucson, Arizona 85714-1961 USA
# PREDICATE DEVICES:
| 510(k) Number | Manufacturer | Trade Name | Product Code |
|---------------|-------------------------------|---------------------------------------------------------------|--------------|
| K102658 | Thayer Medical<br>Corporation | MiniSpacer® Dual-Spray<br>MDI Adapter | CAF |
| K111570 | Thayer Medical<br>Corporation | MiniSpacer® Dual-Spray<br>MDI Adapter<br>Counter Incrementing | CAF |
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Image /page/8/Picture/0 description: The image shows the logo for Thayer Medical. The logo consists of a blue square with white circles inside, arranged in a semi-circular pattern. Above the square are several black dots, also arranged in a semi-circular pattern. Below the square, the words "THAYER MEDICAL" are written in a bold, sans-serif font, with "THAYER" on top of "MEDICAL".
# DISCUSSION OF SIMILARITIES AND DIFFERENCES BETWEEN THE SUBJECT AND PREDICATE DEVICES:
| | Subject Device | K102658 | K111570 |
|---------------------|-----------------|-----------------|-----------------|
| Common Name | Actuator | Actuator | Actuator |
| Classification Name | Nebulizer | Nebulizer | Nebulizer |
| Regulation | 21 CFR 868.5630 | 21 CFR 868.5630 | 21 CFR 868.5630 |
| Single Patient Use | Yes | Yes | Yes |
| Prescription Device | Yes | Yes | Yes |
| | Subject Device | K102658 | K111570 |
|-------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Comparison of<br>Intended Use/<br>Indications for Use | The Dual Spray<br>MiniSpacer® MDI<br>adapter is a single<br>patient, disposable<br>device for dispensing<br>pressurized metered<br>dose inhaler (pMDI)<br>medication into a<br>breathing circuit, as<br>prescribed by a<br>physician or other<br>licensed health care<br>practitioner. | The Dual Spray<br>MiniSpacer® MDI<br>adapter is a single<br>patient, disposable<br>device for dispensing<br>pressurized metered<br>dose inhaler (pMDI)<br>medication into a<br>breathing circuit, as<br>prescribed by a<br>physician or other<br>licensed health care<br>practitioner. | The MINISPACER®<br>1024A, 1025A and<br>1543A adapters are<br>single patient,<br>disposable devices for<br>dispensing pressurized<br>metered dose inhaler<br>(pMDI) medication into<br>a breathing circuit, as<br>prescribed by a<br>physician or other<br>licensed health care<br>practitioner. |
| | The device is indicated<br>for patients on a<br>breathing circuit, for<br>whom aerosol<br>medication has been<br>prescribed, in short<br>term and long term<br>critical care<br>environments. | The device is indicated<br>for patients on a<br>breathing circuit, for<br>whom aerosol<br>medication has been<br>prescribed, in short<br>term and long term<br>critical care<br>environments. | The MINISPACER®<br>1024A, 1025A and<br>1543A adapters are<br>indicated for patients<br>on a breathing circuit,<br>for whom aerosol<br>medication has been<br>prescribed, in short<br>and long term critical<br>care environments. |
| | The device is intended<br>for sale by or on the<br>order of a physician. | The device is intended<br>for sale by or on the<br>order of a physician. | |
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Image /page/9/Picture/0 description: The image shows the logo for Thayer Medical. The logo consists of a blue square with white circles inside, arranged in a pattern that resembles a cloud or a cluster. Above the square, there are several rows of black dots, also arranged in a cloud-like pattern. Below the square, the words "THAYER MEDICAL" are printed in bold, black letters.
| | Subject Device | K102658 | K111570 |
|---------------------|--------------------|--------------------|--------------------|
| Materials, Body | Modified SBC | Legacy SBC | Legacy SBC |
| Materials, Actuator | ABS | ABS | ABS |
| Materials, Cap | SEBS | LDPE | SEBS |
| Dimensions | Same | Same | Same |
| Nozzle Design | Dual spray orifice | Dual spray orifice | Dual spray orifice |
| Non-sterile | Yes | Yes | Yes |
## COMPARISON OF TECHNOLOGICAL CHARACTERISTICS:
### SUMMARY OF PERFORMANCE TESTING:
Biocompatibility: There are no direct patient contacting parts to this device. The patient contact is External Communicating, Tissue, Long Term (> 30 d). A thorough toxicological assessment has been written on the data from the biocompatibility tests. The assessment supports substantial equivalence and biological safety for the intended device population.
No animal or clinical testing was necessary for evaluation of substantial equivalence.
## SUBSTANTIAL EQUIVALENCE CONCLUSION:
Based upon the above comparisons, the subject device is substantially equivalent to the predicate devices. The only difference is the modification to the resin for the body, and the toxicological testing and risk assessment support that the subject device is substantially equivalent to the predicate(s). The information submitted demonstrates that the device is as safe and effective as the legally marketed devices.
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.