K172403 · Grason-Stadler, Inc. · EWO · Oct 20, 2017 · Ear, Nose, Throat
Device Facts
Record ID
K172403
Device Name
GSI Novus
Applicant
Grason-Stadler, Inc.
Product Code
EWO · Ear, Nose, Throat
Decision Date
Oct 20, 2017
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 874.1050
Device Class
Class 2
Attributes
Pediatric
Indications for Use
The GSI Novus is intended to be used for the measurement and automated analysis of auditory evoked responses (auditory brainstem responses, ABR) and/or otoacoustic emissions (distortion product, DPOAE and transient evoked, TEOAE). These measures are useful in the screening evaluation, identification, documentation and diagnosis of auditory and hearing related disorders. The auditory evoked response (ABR) measurement is intended for newborns and infants up to 6 months of age. The otoacoustic emissions (DPOAE and/or TEOAE) measurement is intended for use in patients of all ages. The GSI Novus is intended to be used by a healthcare professional such as an ENT doctor, nurse or audiologist or by a trained technician under the supervision of a professional. The device is intended to be used in a hospital, clinic, or other facility with a suitable quiet testing environment.
Device Story
Handheld audiometric device for screening inner ear and auditory brainstem abnormalities; utilizes touchscreen interface. Inputs: EEG activity via transcutaneous electrodes (ABR) or acoustic responses via ear canal microphone (DPOAE/TEOAE). ABR uses 35 dB nHL CE-Chirp stimulus; DPOAE uses pure tone pairs; TEOAE uses click stimulus. Device processes signals via automated detection algorithm; assigns Pass/Refer result based on response detection. Used in hospitals/clinics by ENT doctors, nurses, audiologists, or trained technicians. Output displayed on screen; supports Bluetooth label printing and USB data transfer to PC. Facilitates clinical decision-making by providing objective screening results for hearing loss. Benefits include rapid, automated assessment of auditory function in infants and patients of all ages.
Clinical Evidence
No clinical testing performed. Substantial equivalence established via bench testing, including design verification and validation against international standards for OAE (IEC 60645-6) and ABR (IEC 60645-7) measurements, EMC, and electrical safety (IEC 60601-1).
Technological Characteristics
Handheld unit with touchscreen and rechargeable battery. Sensing: transcutaneous electrodes (ABR) and ear canal microphone (OAE). Connectivity: Bluetooth (printer) and USB (PC data transfer). Standards: IEC 60601-1 (safety), IEC 60645-6 (OAE), IEC 60645-7 (ABR). Software: Moderate level of concern. Sterilization: Not applicable (non-invasive).
Indications for Use
Indicated for screening, identification, documentation, and diagnosis of auditory and hearing-related disorders. ABR measurement indicated for newborns and infants up to 6 months. OAE (DPOAE/TEOAE) measurement indicated for patients of all ages.
Regulatory Classification
Identification
An audiometer or automated audiometer is an electroacoustic device that produces controlled levels of test tones and signals intended for use in conducting diagnostic hearing evaluations and assisting in the diagnosis of possible otologic disorders.
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Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). On the left is the seal of the Department of Health & Human Services. To the right of that is the FDA logo, with the letters "FDA" in a blue square. Next to that is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.
October 20, 2017
Grason-Stadler Inc. Amy Yanta Director of Regulatory Affairs 10395 West 70th Street Eden Prairie, MN 55344
Re: K172403
Trade/Device Name: GSI Novus Regulation Number: 21 CFR 874.1050 Regulation Name: Audiometer Regulatory Class: Class II Product Code: EWO, GWJ Dated: August 9, 2017 Received: August 9, 2017
Dear Amy Yanta:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
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.
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You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling
(21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education (DICE) at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Also. please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education (DICE) at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely.
# Srinivas Nandkumar -S
for Malvina B. Eydelman, M.D. Director Division of Ophthalmic and Ear, Nose and Throat Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K172403
Device Name GSI Novus
#### Indications for Use (Describe)
The GSI Novus is intended to be used for the measurement and automated analysis of auditory evoked responses (auditory brainstem responses, ABR) and/or otoacoustic emissions (distortion product, DPOAE and transient evoked, TEOAE). These measures are useful in the screening evaluation, documentation and diagnosis of auditory and hearing related disorders. The auditory evoked response (ABR) measurement is intended for newborns and infants up to 6 months of age. The otoacoustic emissions (DPOAE and/or TEOAE) measurement is intended for use in patients of all ages.
The GSI Novus is intended to be used by a healthcare professional such as an ENT doctor, nurse or audiologist or by a trained technician under the supervision of a professional. The device is intended to be used in a hospital, clinic, or other facility with a suitable quiet testing environment.
| Type of Use (Select one or both, as applicable) | |
|--------------------------------------------------|---------------------------------------------|
| X Prescription Use (Part 21 CFR 801 Subpart D) | Over-The-Counter Use (21 CFR 801 Subpart C) |
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Image /page/3/Picture/1 description: The image shows the logo for Grason-Stadler, a company that specializes in audiology equipment. The logo features a stylized sound wave graphic in light blue on the left. To the right of the sound wave is the company's acronym "gsi" in bold, black letters. Below the acronym is the full company name, "Grason-Stadler," in a smaller, sans-serif font.
## Section 5: 510(k) Summary as required by 21 CFR 807.92.
#### Administrative Information
- Submitter: Grason-Stadler Inc. 10395 West 70th Street Eden Prairie, MN 55344 Tel: 952-947-6097 Fax: 952-278-4401
Contact Person: Amy Yanta Director of Regulatory Affairs 10393 West 70th Street Eden Prairie, MN 55344 952-947-6097 amyy@diagnostic-group.us
Date Summary Prepared: August 7, 2017
Device Identification
Trade Name: Novus Common Name: otoacoustic emission device/evoked response auditory stimulator and measurements Device Classification Name: Audiometer/Stimulator, Auditory, Evoked Response Device classification: Class II Panel: Ear Nose & Throat / Neurology Classification Regulation: 874.1050/882.1900 Product Code: EWO/GWJ
Predicate Device 1: Titan (with DPOAE440 and ABRIS440), cleared on 05/05/2011 via K103760 Predicate Device 2: Titan (with TEOAE440), cleared on 06/20/2013 via K130795
## Device Description
The device is audiometric equipment used for testing of inner ear and auditory brainstem abnormalities.
Novus features a touch-screen display and user-friendly software in a compact hardware design. Novus can be purchased with various licenses allowing you to perform different hearing screening tests.
Novus uses auditory brainstem response (ABR) technology to screen patients for hearing loss. A modified click stimulus, the CE-Chirp", of 35 dB nHL is delivered into the patient's ear while electrodes placed on the patient's head measure EEG activity.
The EEG is processed and analyzed automatically using the Novus's response detection algorithm. When a response is detected, the screening is stopped automatically and a Pass result is assigned to the test ear. When no response is detected after 3 minutes of EEG activity has been processed, a Refer result is assigned.
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Image /page/4/Picture/1 description: The image shows the logo for Grason-Stadler, a company that specializes in audiology equipment. The logo features a stylized sound wave graphic in blue, followed by the letters "gsi" in bold, black font. Below the letters, the words "Grason-Stadler" are written in a smaller, sans-serif font, also in black. The logo is clean and modern, reflecting the company's focus on technology and innovation in the field of audiology.
Auditory brainstem response (ABR) test produces a short acoustic stimulus and measures via transcutaneous electrodes the auditory evoked potentials from the inner ear, the auditory nerve and the brainstem.
Distortion product otoacoustic emissions (DPOAE) technology uses pairs of pure tones presented in sequence to screen patients for cochlear hearing loss. Responses to the stimulus are predictable and therefore can be measured via a sensitive microphone placed in the patient's ear canal.
Transient otoacoustic emissions (TEOAE) technology uses a click stimulus to screen patients for cochlear hearing loss. Responses to the stimulus are predictable and therefore can be measured via a sensitive microphone placed in the patient's ear canal. The response can be divided into frequency bands for assessment.
# Device Intended Use
The GSI Novus is intended to be used for the measurement and automated analysis of auditory evoked responses (auditory brainstem responses, ABR) and/or otoacoustic emissions (distortion product, DPOAE and transient evoked, TEOAE). These measures are useful in the screening evaluation, identification, documentation and diagnosis of auditory and hearing related disorders.
The auditory evoked response (ABR) measurement is intended for newborns and infants up to 6 months of age. The otoacoustic emissions (DPOAE and/or TEOAE) measurement is intended for use in patients of all ages.
The GSI Novus is intended to be used by a healthcare professional such as an ENT doctor, nurse or audiologist or by a trained technician under the supervision of a professional. The device is intended to be used in a hospital, clinic, or other facility with a suitable quiet testing environment.
# Technological Characteristics
The Novus consists of a handheld unit that utilizes a touchscreen display and a rechargeable battery. A simple cradle is included to support charging of the device's battery. The device supports Bluetooth® communication with a label printer for the purpose of printing screening results.
A comparison between the new and predicate devices shows that the technological characteristics and indications for use are equivalent. The device employs similar technology to accomplish the same tasks as the predicates. A detailed table is provided below.
| Description | Titan with TEOAE440 (k130795) | Novus |
|----------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Type | Audiometer | Audiometer |
| Regulation Number | 21 CFR 874.1050<br>(otoacoustic emission device) | 21 CFR 874.1050<br>(otoacoustic emission device) |
| Classification Product Code | EWO | EWO |
| Regulatory Class | Class II | Class II |
| Indications for Use | The Titan with TEOAE440 is intended<br>for use in the audiologic evaluation<br>and documentation of ear disorders | The GSI Novus is intended to<br>be used for the measurement<br>and automated analysis of |
| | using Transient Evoked Otoacoustic<br>Emissions.<br>The target population for Titan with<br>TEOAE440 includes all ages. | auditory evoked responses<br>(auditory brainstem<br>responses, ABR) and/or<br>otoacoustic emissions<br>(distortion product, DPOAE<br>and transient evoked, TEOAE).<br>These measures are useful in<br>the screening evaluation,<br>identification, documentation<br>and diagnosis of auditory and<br>hearing related disorders.<br>The auditory evoked response<br>(ABR) measurement is<br>intended for newborns and<br>infants up to 6 months of age.<br>The otoacoustic emissions<br>(DPOAE and/or TEOAE)<br>measurement is intended for<br>use in patients of all ages.<br>The GSI Novus is intended to<br>be used by a healthcare<br>professional such as an ENT<br>doctor, nurse or audiologist or<br>by a trained technician under<br>the supervision of a<br>professional. The device is<br>intended to be used in a<br>hospital, clinic, or other facility<br>with a suitable quiet testing<br>environment.<br>Intended use differs due to<br>the device encompassing all<br>functions into one device. |
| Target Population | The devices are suitable for all<br>populations including new-born<br>infants | The device are suitable for all<br>populations including new-<br>born infants |
| Intended User | The Titan System is to be used by<br>trained personnel only such as<br>audiologists, ENT surgeons, doctors,<br>hearing healthcare professionals or<br>personnel with a similar level of<br>education. | To be used by trained<br>personnel only such as<br>audiologists, ENT surgeons,<br>doctors, hearing healthcare<br>professionals or personnel<br>with similar level of education.<br>(or trained user with<br>supervision of a professional) |
| TEOAE Stimulus | | |
| Frequency Range | 500 to 5500Hz | 500 to 5500Hz |
| Stimuli Type | Non-Linear and Linear<br>Short duration signal (Click)<br>According to IEC 60645-3 | Non-Linear and Linear<br>Short duration signal (Click)<br>According to IEC 60645-3 |
| Level | 30 to 90 dB peSPL | 30 to 90 dB peSPL |
| Level Step | 1 dB SPL | 1 dB SPL |
| Transducer | Dedicated OAE Probe | Dedicated OAE Probe |
| Probe Detection | Auto detection | Auto detection |
| Recording | | |
| A/D Resolution | 24 bit | 24 bit |
| Artifact Reject System | 0 -> +60 dB SPL or off | 0 -> +60 dB SPL or off |
| Automatic test with display<br>of PASS-REFER | Yes | Yes |
Equivalence Predicate Chart 1:
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Image /page/5/Picture/1 description: The image shows the logo for Grason-Stadler, a company that specializes in audiology equipment. The logo features a stylized sound wave graphic in blue, followed by the letters "gsi" in bold, black font. Below the letters, the words "Grason-Stadler" are written in a smaller, lighter font.
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Image /page/6/Picture/1 description: The image shows the logo for Grason-Stadler. The logo features a stylized letter 'g' with three curved lines emanating from it, followed by the letters 'si' stacked on top of the words 'Grason-Stadler'. The letter 'g' and the letters 'si' are in black, while the curved lines are in blue.
# Equivalence Predicate Chart 2:
| | Titan (K103760) | | Novus | |
|--------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Description | With ABRIS440 | With DPOAE440 | With ABRIS | With DPOAE |
| Type | Auditory Brainstem<br>Response -<br>Audiometric<br>equipment | Audiometer | Auditory Brainstem<br>Response -<br>Audiometric<br>equipment | Audiometer |
| Regulation<br>Number | 21 CFR 882.1900<br>(Evoked response<br>auditory<br>stimulator) | 21 CFR 874.1050<br>(otoacoustic<br>emission device) | 21 CFR 882.1900<br>(Evoked response<br>auditory<br>stimulator) | 21 CFR 874.1050<br>(otoacoustic emission<br>device) |
| Classification<br>Product Code | GWJ | EWO | GWJ | EWO |
| Regulatory<br>Class | Class II | Class II | Class II | Class II |
| Indications for<br>Use | The Titan with<br>ABRIS440 is<br>intended for use in<br>the audiologic<br>evaluation and<br>documentation of<br>ear and nerve<br>disorders using<br>auditory evoked<br>potentials from the<br>inner ear, the<br>auditory nerve and<br>the brainstem. | The Titan with<br>DPOAE440 is<br>intended for use in<br>the audiologic<br>evaluation and<br>documentation of<br>ear disorders using<br>Distortion<br>Product<br>Otoacoustic<br>Emissions. | The GSI Novus is<br>intended to be used<br>for the measurement<br>and automated<br>analysis of auditory<br>evoked responses<br>(auditory brainstem<br>responses, ABR)<br>and/or otoacoustic<br>emissions (distortion<br>product, DPOAE and<br>transient evoked,<br>TEOAE). These<br>measures are useful in<br>the screening<br>evaluation,<br>identification,<br>documentation and<br>diagnosis of auditory | The GSI Novus is<br>intended to be used<br>for the measurement<br>and automated<br>analysis of auditory<br>evoked responses<br>(auditory brainstem<br>responses, ABR)<br>and/or otoacoustic<br>emissions (distortion<br>product, DPOAE and<br>transient evoked,<br>TEOAE). These<br>measures are useful in<br>the screening<br>evaluation,<br>identification,<br>documentation and<br>diagnosis of auditory |
| | | | and hearing related | and hearing related |
| | | | disorders.<br>The auditory evoked | disorders.<br>The auditory evoked |
| | | | response (ABR)<br>measurement is | response (ABR)<br>measurement is |
| | | | intended for newborns<br>and infants up to 6 | intended for<br>newborns and infants |
| | | | months of age. The | up to 6 months of age. |
| | | | otoacoustic emissions<br>(DPOAE and/or | The otoacoustic<br>emissions (DPOAE |
| | | | TEOAE) measurement<br>is intended for use in | and/or TEOAE)<br>measurement is |
| | | | patients of all ages.<br>The GSI Novus is | intended for use in<br>patients of all ages. |
| | | | intended to be used by | The GSI Novus is |
| | | | a healthcare | intended to be used |
| | | | professional such as an<br>ENT doctor, nurse or | by a healthcare |
| | | | audiologist or by a | professional such as<br>an ENT doctor, nurse |
| | | | trained technician<br>under the supervision | or audiologist or by a |
| | | | of a professional. The<br>device is intended to | trained technician<br>under the supervision |
| | | | be used in a hospital,<br>clinic, or other facility | of a professional. The<br>device is intended to |
| | | | with a suitable quiet<br>testing environment. | be used in a hospital,<br>clinic, or other facility |
| | | | | with a suitable quiet<br>testing environment. |
| | | | Intended use differs<br>due to the device | |
| | | | encompassing all | Intended use differs |
| | | | functions into one | due to the device |
| | | | device. | encompassing all |
| | | | | functions into one |
| | | | | device. |
| Target | Children and | The patient group | Children and newborn | The patient group |
| Population | newborn | includes all ages | | includes all ages and |
| |…
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.