K180495 · GN Hearing A/S · KLW · Nov 30, 2018 · Ear, Nose, Throat
Device Facts
Record ID
K180495
Device Name
Tinnitus Sound Generator Module
Applicant
GN Hearing A/S
Product Code
KLW · Ear, Nose, Throat
Decision Date
Nov 30, 2018
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 874.3400
Device Class
Class 2
Attributes
Therapeutic, Pediatric
Indications for Use
The Tinnitus Sound Generator Module is a tool to generate sounds to be used in a Tinnitus Management Program to temporarily relieve patients suffering from Tinnitus. The target population is primarily the adult population over 18 years of age. This product may also be used with children 5 years of age or older. The Tinnitus Sound Generator module is targeted for healthcare professionals, which are treating patients suffering from Tinnitus, as well as conventional hearing disorders. The Tinnitus Sound Generator module must be done by a hearing professional participating in a Tinnitus Management Program.
Device Story
Software module embedded in digital hearing instruments; generates sounds for temporary tinnitus relief. Operated by healthcare professionals (HCP) for initial fitting; end-users (EU) adjust settings via mobile app (Smart3D). New feature: Remote Fine-tuning (RFT) allows HCP to remotely adjust TSG parameters (volume, pitch, nature sounds, amplitude modulation) via cloud-based communication between app and fitting software. HCP sets volume limits for safety. System max output 100dB SPL. Benefits: convenient follow-up care, personalized tinnitus management without frequent office visits. Used in clinic and home environments.
Clinical Evidence
Bench testing only. Verification and validation activities included system end-to-end testing, interoperability performance testing, and human factors/usability testing for the RFT feature. Testing confirmed compliance with IEC 60601-1-2, IEC 60118-13, IEC 62311, and IEC 62479 standards. No clinical data presented.
Technological Characteristics
Software module embedded in digital hearing instrument DSP. Features: sound generation, volume control, RFT communication interface. Connectivity: wireless via smartphone app (iOS/Android). Safety: HCP-defined volume limits (max 100dB SPL). Standards: IEC 60601-1-2 (EMC), IEC 60118-13 (EMC), IEC 62311/62479 (EMF).
Indications for Use
Indicated for adults >18 years and children ≥5 years suffering from tinnitus. Targeted for use by healthcare professionals treating tinnitus and conventional hearing disorders. Contraindicated for patients with conditions requiring physician consultation (e.g., ear deformity, active drainage, sudden hearing loss, dizziness, pain, or significant cerumen).
Regulatory Classification
Identification
A tinnitus masker is an electronic device intended to generate noise of sufficient intensity and bandwidth to mask ringing in the ears or internal head noises. Because the device is able to mask internal noises, it is also used as an aid in hearing external noises and speech.
Special Controls
The special control for this device is patient labeling regarding:(1) Hearing health care professional diagnosis, fitting of the device, and followup care, (2) Risks, (3) Benefits, (4) Warnings for safe use, and (5) Specifications.
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November 30, 2018
GN Hearing A/S Lars Hagander Vice President Corporate Quality Lautrupbjerg 7 DK-2750 Ballerup, Denmark
Re: K180495
Trade/Device Name: Tinnitus Sound Generator Module Regulation Number: 21 CFR 874.3400 Regulation Name: Tinnitus Masker Regulatory Class: Class II Product Code: KLW Dated: October 30, 2018 Received: November 2, 2018
Dear Lars Hagander:
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. 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 located 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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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 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see
https://www.fda.gov/CombinationProducts/GuidanceRegulatoryInformation/ucm597488.htm); 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 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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 comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/) and CDRH Learn (http://www.fda.gov/Training/CDRHLearn). 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 (http://www.fda.gov/DICE) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
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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| | DEPARTMENT OF HEALTH AND HUMAN SERVICES<br>Food and Drug Administration | |
|-------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------|
| | <b>Indications for Use</b> | Form Approved: OMB No. 0910-0120<br>Expiration Date: 06/30/2020<br>See PRA Statement below. |
| 510(k) Number (if known) | K180495 | |
| Device Name | Tinnitus Sound Generator Module | |
| Indications for Use (Describe) | The Tinnitus Sound Generator Module is a tool to generate sounds to be used in a Tinnitus Management Program to<br>temporarily relieve patients suffering from Tinnitus. The target population is primarily the adult population over 18 years<br>of age. This product may also be used with children 5 years of age or older.<br><br>The Tinnitus Sound Generator module is targeted for healthcare professionals, which are treating patients suffering from<br>Tinnitus, as well as conventional hearing disorders. The fitting of the Tinnitus Sound Generator module must be done by a<br>hearing professional participating in a Tinnitus Management Program. | |
| Type of Use (Select one or both, as applicable) | <div> <label><input checked="checked" type="checkbox"/> Prescription Use (Part 21 CFR 801 Subpart D)</label> <label><input type="checkbox"/> Over-The-Counter Use (21 CFR 801 Subpart C)</label> </div> | |
| | CONTINUE ON A SEPARATE PAGE IF NEEDED. | |
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# 510(k) SUMMARY
| Submission Type: | Traditional 510(k) |
|-----------------------|-----------------------------------------------------------------------------------------------------------------------------------------------|
| Submitter: | GN Hearing A/S<br>Lars Hagander<br>Lautrupbjerg 7<br>DK-2750 Ballerup<br>Denmark<br>Phone: +45 45 75 11 11<br>Registration number: 3005650109 |
| Date Prepared: | November 28, 2018 |
| Device Name: | Tinnitus Sound Generator Module |
| Device Class: | Class II |
| Classification Name: | 21 CFR 874.3400 Tinnitus masker |
| Classification Panel: | Ophthalmic and Ear, Nose, and Throat Division |
| Product Code: | KLW |
| Predicate Device: | Tinnitus Sound Generator Module, K181586 |
| Reference Device : | LiNX3D model hearing aid, Class II Exempt from 510(k)<br>procedures |
#### Device Description
The Tinnitus Sound Generator (TSG) Module provides a means for healthcare professionals to create a hearing instrument solution that provides temporary relief for Tinnitus patients. This software solution is embedded into a digital hearing instrument platform, so that the end-user (EU) can wear this device in all environments.
The fitting of the digital device, which contains the TSG Module, is performed by a healthcare professional, in order to meet the exact needs of the Tinnitus patient.
A mobile medical application (app) is available as an optional device to use with the TSG. The mobile medical app allows the user to adjust the hearing aid within the limits set by the healthcare professional during fitting of the hearing aid. The app is known as the TSG Tinnitus Manager app and is part of the Smart3D app.
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The subject TSG Module has a new feature. i.e., Remote Fine-tuning (RFT) communication software (PC Interface software) that communicates with a healthcare professional's Fitting Software (FSW) via the user's Smart3D app and is part of the general software on the digital signal processor in GN's legally marketed, class II, 510(k) exempt Hearing Aids (Reference Device). The RFT communication software in the Reference device enables the healthcare professional to remotely adjust the Hearing Aid settings for these legally marketed, class II, 510(k) exempt Hearing Aids, including Hearing Aids that are compatible with the predicate TSG Module and the new TSG Module.
Similarly, the new TSG Module has a PC Interface Software modification that supports fine tuning of TSG Module settings from a remote location. The new TSG Module's PC Interface Software modification opens a bridge between the general RFT function on the Hearing Aid's digital signal processor and the TSG feature settings, that are also available for adjustments via the user's Smart3D app. Therefore, the RFT communication software part of the general software on the Hearing Aids containing the new TSG Module is also part of new TSG Module device.
The Health Care Professional (HCP) can make all of the same changes (Volume/loudness, Pitch/frequency. Nature sounds, and Amplitude modulation) that the user can make. Additionally, the HCP can turn the TSG/tinnitus masker on or off and can set and adjust the Volume Control range and environmental steering sounds. The TSG Volume Control range feature is available only to the HCP. This feature allows the HCP to set a limit on the TSG volume range an EU can adjust. This feature is specifically designed for the safety of the EU, ensuring that an EU cannot increase the TSG volume above a level determined appropriate by the HCP. The system can in no case exceed 100dB SPL for TSG. The TSG Volume Control range has a range of +12dB to -6dB from the TSG fitting by the HCP and can be found in the FSW under the Fitting / Manual Controls / Volume Control Range. For example, if the HCP sets the TSG Volume Control range to +6dB to -6dB, this means an EU cannot set the TSG volume more than 6dB above or below the initial fitting.
#### Intended Use
The Tinnitus Sound Generator Module is a tool to generate sounds to be used in a Tinnitus Management Program to temporarily relieve patients suffering from Tinnitus. The target population is primarily the adult population over 18 years of age. This product may also be used with children 5 years of age or older.
#### Indications for Use statement
The Tinnitus Sound Generator Module is a tool to generate sounds to be used in a Tinnitus Management Program to temporarily relieve patients suffering from Tinnitus. The target population is primarily the adult population over 18 years of age. This product may also be used with children 5 years of age or older. The Tinnitus Sound Generator module is targeted for healthcare professionals, which are treating patients suffering from Tinnitus, as well as conventional hearing disorders. The Tinnitus Sound Generator module must be done by a hearing professional participating in a Tinnitus Management Program.
The Indications for Use Statement for the new device is not identical to that of the predicate device in that the word "temporarily" is added to clarify relief from Tinnitus provided by the new TSG Module is
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temporary. This minor modification does not impact safety or effectiveness and both the new and predicate devices have the same intended use.
# Comparison of Technological Characteristics with the Predicate Device
All of the new device's technological characteristics are identical to those of the predicate device except for one modification: the addition of Support for RFT. which is a PC Interface Software modification that supports fine tuning from a remote location of each of the TSG Module's settings that can be adjusted by the EU (or parent or guardian in the case of a minor) and/or the HCP using the FSW in the clinic.
The subject TSG Module's new RFT communication software communicates with a healthcare professional's FSW via the user's Smart3D app and is part of the general software on the digital signal processor in GN's legally marketed, class II, 510(k) exempt Hearing Aids (Reference Device). The RFT communication software in the Reference device enables the healthcare professional to remotely adjust the Hearing Aid settings for these legally marketed, class II, 510(k) exempt Hearing Aids, including Hearing Aids that are compatible with the predicate and new TSG modules.
Similarly, the new TSG Module's PC Interface Software modification supports fine tuning of TSG Module's settings from a remote location. The predicate TSG module device does not contain a RFT feature to adjust its parameters from a remote location.
The TSG Module's PC Interface Software modification opens a bridge between the general RFT function on the Hearing Aid's digital signal processor and the TSG Module's parameter settings that are also available for adjustments via the EU's Smart3D app. Therefore, the RFT communication software part of the general software on the Hearing Aids containing the new TSG Module's is also part of new TSG Module.
The new RFT feature is only enabled by the healthcare professional if the healthcare professional finds it feasible, based on an initial in-office assessment of the EU.
The app requires the EU, or the parent or legal guardian in cases where the user is a minor, to answer an inventory of questions to better understand the EU's need for the new RFT request is sent to the healthcare professional. Based on the request, and a clinical judgement, the healthcare professional will send the fine-tuned settings to the EU. If the healthcare professional feels the request is against their best clinical judgement, or 'out of the ordinary', the healthcare professional should first request a face-to-face/live follow-up visit (e.g., phone call, clinical visit) prior to making any changes via RFT. The EU, or the parent or legal guardian in cases where the user is a minor, is required to accept the changes.
This one modification to the technological characteristics of the new device, i.e., the addition of Support for RFT, which is a PC Interface Software modification, has minimal risk to the patient and based on the risk analysis, all risks have been mitigated to an acceptable level. The combined minor differences between the Indications for Use (the addition of the word "temporarily") and the single technological change (the addition of Support for RFT for the adjustable parameters of the TSG Module) are minor modifications in relation to the predicate device that do not change the operating principle of the TSG module.
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# Performance Data
GN Hearing has conducted a risk analysis and has performed the necessary verification and validation activities to demonstrate that the design outputs of the modified device meet the design input requirements.
Besides the detailed verification of all requirements, the TSG Module is verified in an integrated system verification test. The integrated system consists of:
- Different Hearing Instrument hardware with embedded software, including the TSG Module. ●
- . App (iOS & Android)
- Fitting Software (FSW) .
The system verification includes system end-to-end testing and interoperability performance testing. The result of the system verification show that test has passed with no defects critical for function, form, intended use, or pose any user risks.
The successful validation activities conducted for the subject device are based on experience with similar validation activities for the predicate device and reference device.
The successful validation activities related to the RFT feature were conducted to show that human factors and usability are safe and effective.
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| 21 CFR 874.3305<br>Special controls | Reference device LiNX3D | Remote Fine Tuning part of<br>LiNX3D |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (1) Appropriate<br>analysis/testing<br>should validate<br>electromagnetic<br>compatibility (EMC)<br>and safety of<br>exposure to non-<br>ionizing radiation | EMC testing was done in<br>accordance to the appropriate<br>standards IEC 60601-1-2 and IEC<br>60118-13.<br>EMF assessment was done in<br>accordance to IEC 62311 and IEC<br>62479.<br>The tests and the assessment were<br>performed by the accredited test<br>house:<br>DEKRA Testing and Certification,<br>S.A.U. Parque Tecnológico de<br>Andalucía, c/ Severo Ochoa nº 2,<br>29590 Campanillas, Málaga, Spain.<br><br>Test reports demonstrate compliance<br>to the FDA medical device recognized<br>standards, and the regulatory radio<br>requirements in relation to the US<br>Federal Communications Commission<br>(FCC). The testing and the assessment<br>demonstrate that the implemented<br>wireless technology is safe. | The RFT feature does not operate<br>using a different technology than<br>the other wireless hearing aid<br>features. |
| (2) Design,<br>description, and<br>performance data<br>should validate<br>wireless technology<br>functions | The design controls activities for the<br>LiNX3D hearing aid are identical to the<br>activities described in Annex IX of the<br>K180495 submission. The GN Hearing<br>New Product Development process<br>#0216640 were followed.<br>The wireless technology was developed<br>and documented as part of this process<br>and performance data in the form of<br>verification of all wireless technology<br>requirements | The RFT feature does not operate<br>using a different wireless<br>technology than the other<br>wireless hearing aid features.<br><br>The features using the wireless<br>technology in relation to RFT<br>were verified and validated to be<br>safe and effective as part of the<br>design process. |
The reference device, LiNX3D hearing aid, meets the special controls identified in 21 CFR 874.3305:
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| (3) Labeling should<br>specify appropriate<br>instructions, warnings,<br>and information<br>relating to EMC and<br>wireless technology<br>and human exposure<br>to non-ionizing<br>radiation | Risk controls related to wireless<br>technology, identified as part of the Risk<br>Management, include labeling<br>requirements with appropriate<br>instructions, warnings, and information<br>related to EMC and wireless technology<br>and human exposure to non-ionizing<br>radiation.<br>The user guide informs the user about<br>the device containing a RF transmitter<br>operating wireless, and the precautions<br>related to that, like coexistence with<br>other devices, flight mode, etc. | RFT uses the same wireless<br>technology for communication as<br>the standard hearing aid<br>functionalities. No additional<br>labeling required. |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------|
The system verification outcome, together with the TSG Module verification and validation outcome, supports substantial equivalence of the subject device compared to the Predicate Device, verified and validated under similar conditions at GN Hearing.
The system verification outcome, together with the TSG Module verification and validation outcome, also supports substantial equivalence of the RFT Feature in the subject device compared to the predicate device, showing that RFT is safe and effective.
# Precautions
The target population is primarily the adult population over 18 years of age. This product may also be used with children 5 years of age or older. However, children and physically or mentally challenged users will require training by a doctor, audiologists, hearing care practitioner or the guardian for the insertion and removal of the device containing the TSG module.
Children and physically or mentally challenged users will require guardian supervision while wearing the device.
The volume control is a feature in the TSG module used for adjusting the sound generator output level. To prevent unintended usage by pediatric or physically or mentally challenged users, the volume control must be configured to only provide a decrease of the sound generator output level.
Adjustment of the tinnitus sound generator settings, using a smartphone app, should only be performed by the parent or legal guardian in cases where the user is a minor.
Use of the ReSound Assist for remote settings of the tinnitus sound generator, should only be performed by the parent or legal guardian in cases where the user is minor
The RFT feature will only be used under clinical supervision from a Hearing Care Professional. Initial fitting must be done face-to-face in the office of the hearing care professional and RFT should only be used for follow-up adjustments.
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The user is informed to discontinue use of the sound generator and consult promptly with a licensed physician if they experience one of the following conditions:
- a. Visible congenital or traumatic deformity of the ear.
- b. History of active drainage from the ear within the previous 90 days.
- c. History of sudden or rapidly progressive hearing loss within the previous 90 days.
- d. Acute or chronic dizziness.
- e. Unilateral hearing loss of sudden or recent onset within the previous 90 days.
- f. Visible evidence of significant cerumen accumulation or a foreign body in the ear canal.
- g. Pain or discomfort in the ear.
The user is also informed to discontinue use of the sound generator and consult promptly with the hearing care professional if they experience changes in the tinnitus perception, discomfort or interrupted speech perception, while using the tinnitus sound generator.
# Conclusions
The single minor modification to the Indications for Use statement and the one minor modification to the technological characteristics of the new device do not raise new or different questions of safety or effectiveness as compared to the predicate device. The results of risk analysis and design verification and validation activities provide evidence that the new device is as safe and effective as its predicate and therefore, demonstrate that the TSG Module is substantially equivalent to the predicate device.
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.