The Lifelines iEEG is an EEG system that allows acquisition, display, archive, storage and analysis of physiological signals. The intended user of this product is a qualified medical practitioner trained in electroencephalography who will exercise professional judgment in using the information. The Lifelines iEEG system also includes the display of a quantitative EEG plots, power spectrum, which is intended to help the user to monitor and analyze the EEG. This device does not provide any diagnostic conclusion about the patient's condition to the user.
Device Story
Lifelines iEEG 2.0 is an EEG system for acquisition, display, storage, and analysis of physiological signals. Inputs include EEG signals from electrodes via Lifelines Trackit amplifier and synchronized digital video from IP cameras. System performs signal processing including re-montaging, band-pass filtering, FFT analysis, and artifact removal. Outputs include conventional EEG waveforms, quantitative EEG plots (power spectrum, spectral edge, peak frequency), and trend analysis on a compressed timescale. Used in hospitals, clinics, and home monitoring settings by qualified medical practitioners. Software utilizes service-oriented architecture for WAN data review. Healthcare providers use output to monitor and analyze EEG; device provides no diagnostic conclusions. Benefits include remote data access and synchronized video-EEG monitoring.
Clinical Evidence
Bench testing only. No clinical data provided. Performance verified through software verification and validation, immunity testing, and conformance to IEC 60601-1, IEC 60601-1-2, IEC 62304, IEC 62366, and IEC 60601-2-26.
Technological Characteristics
EEG system comprising off-the-shelf PC, Lifelines Trackit Mk3 amplifier, and optional LED Photic Stimulator. Supports up to 128 software channels (32 hardware). Connectivity via Ethernet/wireless. Signal processing includes re-montaging, band-pass/notch filtering, and Welch periodogram-based spectral analysis. Software architecture is service-oriented. Conforms to IEC 60601-1, 60601-1-2, 60601-2-26, 62304, and 62366.
Indications for Use
Indicated for acquisition, display, archive, storage, and analysis of physiological signals in all age groups. Intended for use by qualified medical practitioners trained in electroencephalography in hospitals, clinics, and patient homes.
Regulatory Classification
Identification
An electroencephalograph is a device used to measure and record the electrical activity of the patient's brain obtained by placing two or more electrodes on the head.
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Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo features the department's name in a circular arrangement around a symbol. The symbol consists of a stylized human figure with three faces in profile, representing the department's focus on health and human well-being. The logo is simple, using only black and white.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
Auqust 21, 2015
Kvikna ehf c/o Yolanda Smith Smith Associates 1468 Harwell Ave Crofton, MD 21114
Re: K143487
Trade/Device Name: Lifelines iEEG 2.0 Regulation Number: 21 CFR 882.1400 Regulation Name: Electroencephalograph Regulatory Class: Class II Product Code: OLT, GWQ Dated: July 22, 2015 Received: July 23, 2014
Dear Ms. Smith:
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. 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
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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 at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR 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 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 yours,
Carlos L. Pena -S
Carlos Peña, PhD, MS Director Division of Neurological and Physical Medicine Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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## Indications for Use
510(k) Number (if known) K143487
Device Name Lifelines iEEG 2.0
#### Indications for Use (Describe)
The Lifelines iEEG is an EEG system that allows acquisition, display, archive, storage and analysis of physiological signals. The intended user of this product is a qualified medical practitioner trained in electroencephalography who will exercise professional judgment in using the information. The Lifelines iEEG system also includes the display of a quantitative EEG plots, power spectrum, which is intended to help the user to monitor and analyze the EEG. This device does not provide any diagnostic conclusion about the patient's condition to the user.
Type of Use (Select one or both, as applicable)
| <span> <span style="font-size: 16px;">☑</span> Prescription Use (Part 21 CFR 801 Subpart D) </span> |
|-------------------------------------------------------------------------------------------------------|
| <span> <span style="font-size: 16px;">☐</span> Over-The-Counter Use (21 CFR 801 Subpart C) </span> |
#### CONTINUE ON A SEPARATE PAGE IF NEEDED.
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# 510(k) Summary
| SPONSOR | |
|---------------------------|------------------------------------------|
| Company Name: | Kvikna Medical ehf |
| Company Address | Stórhöfði 21<br>110 Reykjavik<br>Iceland |
| Telephone: | +354 578 8400 |
| Contact Person: | Gardar Thorvardsson |
| Summary Preparation Date: | November 14, 2014 |
| DEVICE NAME | |
| Trade Name: | Lifelines iEEG 2.0 |
| Common/Usual Name: | EEG System |
| Classification Name: | Electroencephalograph |
| Regulation Number: | 21 CFR 882.1400 GWQ, |
| Product Code: | GWQ, OLT |
| Device Class: | Class II |
| PREDICATE DEVICE | |
| Company | Product |
| Natus Medical, Inc | DG Nervus |
#### DEVICE DESCRIPTION
●
Lifelines iEEG is medical device used to acquire, display, archive, store and analyze EEG examinations. The EEG is presented in a conventional way and conventional signal processing is applied such as re-montaging and band pass filtering. The system is also capable of acquiring and presenting digital video synchronized to the EEG if this is available. Some advanced analysis methods are provided as an aid: FFT analysis and Artifact Removal. The system software is designed using service oriented architecture enabling the possibility of reviewing data over WAN without the use of additional remote desktop software solutions.
510(k) # K964280
The components of Lifelines iEEG are:
- Lifelines iEEG software:
- . iEEG Centrum
- . iEEG Review
- iEEG Acquisition .
- Lifelines Trackit, Lifelines Ltd, 510(k)#K010460
- Lifelines Photic Stimulator, Lifelines Ltd, 510(k)# K101691 ●
- Off the shelf PC and medical grade power supply ●
- Off the shelf IP Video Camera ●
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#### INDICATIONS FOR USE
The Lifelines iEEG is an EEG system that allows acquisition, display, archive, storage and analysis of physiological signals. The intended user of this product is a qualified medical practitioner trained in electroencephalography who will exercise professional judgment in using the information. The Lifelines iEEG system also includes the display of a quantitative EEG plots, power spectrum, which is intended to help the user to monitor and analyze the EEG. This device does not provide any diagnostic conclusion about the patient's condition to the user.
Caution: Federal law restricts this device to sale by or on the order of a physician licensed by the law of the State in which he practices to use or order the use of the device.""
| | Subject Device | Predicate Device | Similarities and Differences |
|---------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------|
| Trade Name | Lifelines iEEG | DG Nervus<br>(now NicoletOne) | |
| Company | Kvikna Medical ehf | Natus Medical, Inc. | |
| K Number | | K964280 | |
| Intended Use | The Lifelines iEEG is an EEG<br>system that allows acquisition,<br>display, archive, storage and<br>analysis of physiological signals.<br>The intended user of this product<br>is a qualified medical practitioner<br>trained in<br>electroencephalography who will<br>exercise professional judgment in<br>using the information. The<br>Lifelines iEEG system also<br>includes the display of a<br>quantitative EEG plots, power<br>spectrum, which is intended to<br>help the user to monitor and<br>analyze the EEG. This device does<br>not provide any diagnostic<br>conclusion about the patient's<br>condition to the user. | The Nervus DG is intended to<br>be used as an<br>Electroencephalograph: to<br>acquire, display, store and<br>archive<br>electroencephalographic<br>signals from the brain using a<br>full montage array (i.e. 16 or<br>more electrodes) and user<br>specified locations. | The Lifelines iEEG system<br>(Subject Device) and the DG<br>Nervus have equivalent<br>intended use. |
| Intended User | Qualified medical practitioner<br>trained in<br>Electroencephalography | Qualified medical<br>practitioner trained in<br>Electroencephalography | No difference. |
| Population age | All age groups | All age groups | No difference. |
| Use environment | Hospital, clinics, patients home | Hospital, clinic, patients<br>home | No difference. |
| Regulation Number | 21 CFR 882.1400 | 21 CFR 882.1400 | No difference. |
| Product Code | GWQ, OLT | GWQ | Lifelines iEEG includes OLT<br>product code as it offers<br>quantitative EEG in the form<br>of power spectrum and<br>related parameters. |
| Device allows acquisition<br>of physiological signals | Yes | Yes | No difference. |
| | Subject Device | Predicate Device | Similarities and Differences |
| Trade Name | Lifelines iEEG | DG Nervus<br>(now NicoletOne) | |
| Device allows display,<br>archive, review and<br>analysis of physiological<br>signals | Yes | Yes | No difference. |
| Identifies spikes | No | Yes | Lifelines iEEG does not offer<br>automated spike detection |
| Identifies seizures | No | Yes | Lifelines iEEG does not offer<br>automated seizure detection |
| Displays calculated EEG<br>measures | Yes | Yes | No difference. |
| Calculated EEG measures<br>displayed | Spectrum, Power Spectrum<br>Density, band power, spectral<br>edge, peak frequency | Spectrum, Spectrogram,<br>band power, peak frequency,<br>spectral edge | No difference. The algorithm<br>used to calculate Spectrogram<br>in DG Nervus and Power<br>spectrum density in iEEG is<br>the same. |
| Users can add/delete<br>events | Yes | Yes | No difference. |
| Number of EEG channels | Software: up to 128<br>Hardware: up to 32 | Up to 512 | Lifelines system and Lifelines<br>iEEG software system support<br>up to 128 channels, the DG<br>Nervus supports up to 512<br>channels. |
| Type of EEG recording<br>supported | EDF, NicoletOne, Lifelines iEEG | EDF, NicoletOne | The Lifelines iEEG system and<br>the Lifelines iEEG software<br>system support the Lifelines<br>iEEG (.ieeg) recording type<br>which DG Nervus does not |
| Type of EEG analysis | Clinical, ambulatory, long term<br>monitoring | Clinical, ambulatory, long<br>term monitoring | No difference. |
| Photic activation of the<br>EEG | Yes | Yes | No difference. |
| Differential input<br>impedance | >20 Mohms | > 20MΩ | No difference. |
| Common mode input<br>impedance | >100 Mohms | > 100MΩ | No difference. |
| Channel equivalent input<br>noise | <3.5 µV pk-pk @ 0.16Hz to 70Hz | < 1.5µV pk-pk @ 0.16Hz to<br>70Hz | Slight difference. |
| Frequency band | 0.16Hz to 70Hz (–6dB) | 0.16–500Hz (–6dB) (± 10%) | Slight difference. |
| Low filter | 0 Hz-5 Hz or off, in 11 predefined<br>steps | 0.16Hz-5Hz ( ± 10%), in 7<br>predefined steps or<br>customizable up to 1000Hz<br>or off | Slight difference. |
| High filter | 10 Hz–100 Hz or off, in 9<br>predefined steps | 15Hz–100Hz (± 5%), in 7<br>predefined steps or<br>customizable up to 1000Hz<br>or off | Slight difference. |
| Sampling rate | 200, 256 Hz | 1024, 512, 256 and 128 Hz, | Slight difference. |
| | Subject Device | Predicate Device | Similarities and Differences |
| Trade Name | Lifelines iEEG | DG Nervus<br>(now NicoletOne) | |
| Wireless Communication<br>between Amplifier and<br>Computer | Yes | No | Wireless Communication<br>between Amplifier and<br>Computer is an added feature<br>of the Lifelines iEEG system. |
| Video Camera Support | Yes | No | Video Camera Support is an<br>added feature of the Lifelines<br>iEEG system. |
### COMPARISON OF PREDICATE PRODUCTS TECHNICAL CHARACTERISTICS
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## Discussion of Similarities and Differences
The Lifelines iEEG system is an update to the previously released Lifelines iEEG software system (K123665). The main difference is the inclusion of acquisition capabilities, which includes both new software features and hardware components.
A list of new/improved features associated with the acquisition capabilities can be found in the following table:
| Feature | Feature description / Enhancement |
|--------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Acquire Portable Operator View | The view available to the operator of an acquisition system. |
| Acquisition | Acquisition of EEG and other signals. |
| Amplifier Setup | The amplifier setup provides the user interface to configure the EEG<br>amplifier used. |
| Exam for Acquisition | Prepare for acquiring a patient. |
| Exam Spaces | It is now possible to set an exam space for an acquisition system.<br>Two acquisition systems cannot share an exam space. When an<br>acquisition system connects to a main central data storage, an exam<br>space shall be generated for it if it doesn't already exist. |
| Exam Types | It is now possible to associate an xps document (help page) with an<br>exam type. |
| Help Pages | Help pages, containing contact information for techs, etc. shall be<br>easy to customize by each customer. |
| Hyperventilation Timer | Patients are asked to hyperventilate as part of standard EEG<br>protocol. The timer shows the operator for how long the patient has<br>been hyperventilating and marks events for later reference. |
| Impedance Test | Impedance test is usually done in the beginning of an EEG test in<br>order to check the quality of the electrode connections. This is also<br>sometimes done while recording in order to check if any electrode<br>needs to be fixed or re-applied. |
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| Feature | Feature description / Enhancement |
|---------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Patient Room View | During home monitoring or long-term monitoring within a hospital,<br>it is beneficial that the patient (or the patient's parents) are able to<br>see some information on the screen and even be able to<br>communicate with the operator. |
| Photic Stimulation | The ability to control a photic stimulator from the system. |
| Synchronization | Synchronization of patient and exam data is now available when<br>acquiring without network connection. Transfer of recorded data<br>from the acquisition system to the main database. |
| Trackit Acquisition | Acquisition from the Trackit EEG amplifier |
| Video Acquisition | Digital video is acquired synchronized to the EEG. |
| Video Acquisition Configuration | Configuration of video cameras for video acquisition. |
The hardware components provided with the system can be found in the following table:
| Part | Quantity |
|--------------------------------------------------------------------------------------------|-----------|
| PC computer<br>(Lenovo ThinkPad T440) | 1 |
| Lifelines Trackit Mk3 EEG Amplifier | 1 |
| Lifelines LED Photic Stimulator | 0 or 1 |
| Power over Ethernet Switch (PoE)<br>(Planet Desktop PoE Switch) | 0 or 1 |
| Medical Grade Power Supply for PC<br>(TRUMPower 20V Medical and ITE Power Adapter) | 1 |
| Medical Grade Power Supply for PoE Switch<br>(TRUMPower 48V Medical and ITE Power Adapter) | 0 or 1 |
| IP Video Camera<br>(HIKVISION IR Cube Network Camera) | 0, 1 or 2 |
| USB 3.0 Ethernet Adapter<br>(Lenovo ThinkPad USB 3.0 Ethernet Adapter) | 1 |
| Network Cat6 RJ45 0,5 m | 0 or 1 |
| Network Cat6 RJ45 3,0 m | 0, 1 or 2 |
| Splitter Power Cord<br>(C14 to C13 splitter cord) | 0 or 1 |
| Power Cord | 1 |
Other than the acquisition capabilities the Trend Analysis, Spectral Calculations and Save As... features are new to the system, other software functions are unchanged or changes are very minor. A list of new features and enhancements to existing features can be found in the following table:
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| Feature | Enhancement |
|--------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Auditing | Audit trail is now recorded when an exam is exported. |
| Events | Duration events now display the elapsed time in 20 second intervals and the entire<br>duration at the end. |
| Exam Types | The following exam types are now predefined in the system: *Video Ambulatory<br>*Generic *NicOne |
| Labels | The EEG labels M1 and M2 are now predefined in the system. They have the same<br>coordinates as A1 and A2 respectively. |
| Labels | The label type: *ECG Unipolar is now predefined in the system. |
| Labels | The non-EEG labels: *ECGL and ECGR of type ECG Unipolar and *ECG1 and ECG2 of<br>type ECG Unipolar are now predefined in the system. |
| Montages | It is now possible to apply an exam's "Input" montage. The Input montage contains<br>all recorded channels and unipolar channels derived to common reference. |
| Online Data<br>Transfer | If a wireless network is selected to be used, the internet gateway is now switched to<br>this connection automatically. |
| Report<br>Generation | It is now possible to see all reports associated with exams belonging to the same visit<br>in a single list. |
| Save As | It is now possible to save a copy of an exam as a new exam in the system. |
| Spectral<br>Calculations | It is now possible to calculate the spectrum of a block of EEG. |
| Spike and Seizure<br>detection | When Persyst spike and seizure detection has been run on an exam, an event is now<br>added at the beginning of the exam stating that the detection has been run and by<br>which version of Persyst. |
| Task Processing | It is now possible to define tasks that run periodically with predefined interval<br>between runs. |
| Trend Analysis | Mathematically transformed EEG is now displayed on a compressed timescale. |
| Version Control | The client software now displays the name and (new) address of the manufacturer,<br>namely: "Kvikna ehf, Storhofdi 21, 110 Reykjavik, Iceland" |
The Lifelines iEEG system and the DG Nervus system have equivalent intended use, the same intended user, population, age and regulation number. Also, the principles of operations between the devices are more or less the same, including the signal processing. But the systems do have a few minor differences. The DG Nervus system identifies spikes and seizures but the Lifelines iEEG system does not. The DG Nervus system supports up to 512 EEG channels while the Lifelines iEEG supports up to 128 (software, the hardware supports up to 32 channels). The Lifelines iEEG system supports the Lifelines iEEG (.ieeg) recording type. The Lifelines iEEG states the OLT product code that DG Nervus does not. However the quantitative EEG functions are equivalent such that this does not reflect a true difference of the products.
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The principles of operation of the software are the same or very similar, including the signal processing i.e. the calculation of EEG montage, band-pass and notch filtering and the method used to plot the data to screen. The algorithm used to calculate Spectrogram in DG Nervus and Power spectrum density in iEEG is the same, in both cases the EEG is segmented into blocks and power spectrum calculated by Welch periodogram method. The results are also presented in the same way by color coding the power spectrum for each block of EEG and stacking the color coded blocks for the entire EEG recording. The major difference is that the Nervus DG system makes use of proprietary EEG amplifier and photic stimulator while the Lifelines iEEG system includes 30 party medical device components for the same purpose.
The spike and seizure detection, provided by the DG Nervus, are nice-to-have features that are not essential to an EEG system. Therefore, the fact that the Lifelines iEEG system does not include them does not impact safety nor efficacy of the system. The same can be said about number of EEG channels supported.
#### NON-CLINICAL PERFORMANCE DATA
Software Verification and Validation.
Immunity Verification.
Third party testing for conformance with IEC 60601-1:2005 - Medical electrical equipment - Part 1: General requirements for basic safety and essential performance.
Third party testing for conformance with IEC 60601-1-2:2007 - Medical electrical equipment - Part 1-2: General requirements for basic safety and essential performance - Collateral standard: Electromagnetic compatibility - Requirements and tests
Checklist testing for IEC 62304:2006 - Medical Device Software - Software - Software Life Cycle Processes
Checklist testing for IEC 62366:2007 - Medical Devices - Application Of Usability Engineering To Medical Devices
Third party testing for conformance with IEC 60601-2-26:2002 - Medical electrical equipment - Part 2-26: Particular requirements for the safety of electroencephalographs
#### CONCLUSION
Based upon the intended use, technological characteristics and safety and performance testing, it is the conclusion of Kvikna Medical ehf that the device consisting Lifelines iEEG system that allows acquisition, display, archive, storage and analysis of physiological signals, is as safe and effective as the predicate devices and raises no new issues of safety and effectiveness.
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.