The ISEN-Goggles with Data Viewer are used in the assessment of nystagmus by measuring, recording, displaying, and analyzing eye movements.
Device Story
Device consists of opaque, head-worn goggles with dual infrared cameras and two sets of LEDs (one for illumination, one for focal points); internal SD memory; and PC-based Data Viewer software. Goggles capture binocular eye movement video; data transferred via micro-USB to PC. Software performs post-processing analysis of eye movements, including slow phase velocity (SPV) calculation; generates customizable reports; maintains patient database. Used by trained/qualified personnel in clinical settings to assess nystagmus via positional, oculomotor, and caloric testing. Provides near-simultaneous viewing of eye video and movement graphs. Output assists clinicians in diagnosing vestibular or oculomotor disorders by quantifying eye movement characteristics.
Clinical Evidence
No clinical data. Bench testing only, including electrical safety (IEC 60601-1), EMC (IEC 60601-1-2), lamp safety (IEC 62471), battery safety (IEC 62133), biocompatibility (ISO 10993), and hardware/software verification and validation.
Technological Characteristics
Binocular infrared video-oculography system. Components: opaque goggles with dual cameras, IR LEDs, visible LEDs for focal points, SD memory, micro-USB interface. PC-based software for post-processing. Power: battery-operated goggles. Biocompatibility per ISO 10993. Electrical safety per IEC 60601-1; EMC per IEC 60601-1-2; lamp safety per IEC 62471.
Indications for Use
Indicated for the assessment of nystagmus in patients requiring measurement, recording, display, and analysis of eye movements.
Regulatory Classification
Identification
A nystagmograph is a device used to measure, record, or visually display the involuntary movements (nystagmus) of the eyeball.
{0}------------------------------------------------
Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized eagle with three lines representing its body and wings. The eagle is positioned to the right of the text, which is arranged in a circular pattern around the left side of the logo. The text reads "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA".
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
September 25, 2017
ISEN Tech & Trading Company,ltd. % Tom Renner Ouality, Efficiency & Regulatory Affairs Consultant Vision28 915 SW Rimrock Way, STE 201 PMB 402 Redmond, OR 97756
Re: K163270
Trade/Device Name: ISEN-Goggles With Data Viewer Regulation Number: 21 CFR 882.1460 Regulation Name: Nystagmograph Regulatory Class: Class II Product Code: GWN Dated: August 18, 2017 Received: August 24, 2017
Dear Tom Renner:
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.
{1}------------------------------------------------
### Page 2 - Tom Renner
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); good manufacturing practice requirements as set forth in the quality systems (OS) 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/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 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,
# Bradley S. Cunningham -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
{2}------------------------------------------------
#### Indications for Use
510(k) Number (if known)
#### K163270
Device Name ISEN-Goggles with Data Viewer
Indications for Use (Describe)
The ISEN-Goggles with Data Viewer are used in the assessment of nystagmus by measuring, displaying, and analyzing eye movements.
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)
#### CONTINUE ON A SEPARATE PAGE IF NEEDED.
This section applies only to requirements of the Paperwork Reduction Act of 1995.
#### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff(@fda.hhs.gov
"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."
Form Approved: OMB No. 0910-0120
Expiration Date: January 31, 2017
See PRA Statement below.
FORM FDA 3881 (8/14)
{3}------------------------------------------------
# 510(k) SUMMARY - K163270
# Contact Details
| Applicant Name: | ISEN Tech & Trading Company, Ltd.<br>509, Bldg. A Cyber Tower, No. 2 ZHONG GUANCUN South Ave.<br>Beijing, 100086, China<br>+86-10-5162-7073 |
|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------|
| Contact: | Martin Liu, CEO |
| Date Prepared: | September 25, 2017 |
## Device Name
Trade Name: ISEN-Goggles with Data Viewer
Common Name: IR/Video Eye Movement Viewer/Recorder
Classification Name: 882.1460 Nystagmograph; GWN Nystagmograph
## Legally Marketed Predicate Device(s)
| 510(k) Number | Product Code | Trade Name | Applicant |
|---------------|--------------|----------------------------------|---------------|
| K151504 | GWN | ICS Impulse System Model<br>1085 | GN Otometrics |
# Device Description
This device consists of patient eye goggles ("ISEN-Goggles"), previously cleared under K152727, and a software application for data visualization and analysis ("Data Viewer").
The ISEN-Goggles have an adjustable, elastic headband, an LCD display, two green LED lights to provide optional focal points, eight infrared LED lights to provide illumination for the internal cameras, an internal SD-type memory, and buttons to operate the device's function. There is also a micro-USB port to facilitate transfer of data captured and stored in the device's SD-type memory.
The patient eye goggles are an opaque, facially worn device fitted with two small video cameras, and two wavelengths of light emitting diodes (LEDs). One set of lights provides illumination for the cameras. The other allows the user to provide a focus point for the patient, if this is desired. These signals are processed by the image processor that allows for nearsimultaneous viewing of the video images from both eyes on the attached LCD screen.
{4}------------------------------------------------
ISEN-Goggles with Data Viewer 510(k) Notification
The Data Viewer software retrieves data from the goggles, displays it, performs analysis functions, and exports customizable reports. It includes a patient database.
# Intended Use/Indications for use
The ISEN-Goggles with Data Viewer are used in the assessment of nystagmus by measuring, recording, displaying, and analyzing eye movements.
## Substantial Equivalence Comparison
The ISEN-Goggles with Data Viewer is a modification of the ISEN-Goggles, previously submitted to the agency and cleared under K152727. However, the predicate device being used to establish substantial equivalence in this submission is the ICS Impulse System Model 1085 from GN Otometrics that was cleared under K151504.
#### Table 5-1 Summary of Similarities and Differences
| | ISEN-Goggles with Data<br>Viewer K163270 | Otometrics ICS Impulse 1085<br>K151504 |
|------------------------------------|----------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------|
| Category | | |
| Product code | GWN | GWN |
| IFU | Used in the assessment of<br>nystagmus by measuring,<br>recording, displaying, and<br>analyzing eye movements. | Used in the assessment of<br>[VOR] and nystagmus by<br>measuring, recording,<br>displaying, and analyzing eye<br>and head movements. |
| Test types supported | Positional, oculomotor, caloric | Positional, oculomotor, head<br>impulse |
| User | Trained and qualified<br>personnel | Trained and qualified<br>personnel |
| Patient-applied part | Goggles | Goggles |
| Built-in calibration | Yes | Yes |
| Per-patient calibration | Yes | Yes |
| Eye tracking | Binocular | Monocular (right eye only) |
| Eye illumination | Infra-red LED | Infra-red LED |
| Real-time display of<br>eyes | Yes | Yes |
| Records video of eyes | Yes | Yes |
| Records eye movement | Yes | Yes |
| Real-time graph of eye<br>movement | Yes | Yes |
| Records head position | No | Yes |
| Vision stimulus type | LED | Projected lasers |
| Vision denied mode | Yes | Yes |
{5}------------------------------------------------
| | ISEN-Goggles with Data<br>Viewer K163270 | Otometrics ICS Impulse 1085<br>K151504 |
|--------------------------------------------|------------------------------------------|---------------------------------------------|
| Category | | |
| Analysis software | PC-based, post-processing | PC-based, real-time and post-<br>processing |
| Analysis algorithm | Slow phase velocity (SPV) | Slow phase velocity (SPV) |
| Graphs slow phase<br>velocity | Yes | Yes |
| Playback of<br>synchronized<br>video/graph | Yes | Yes |
| Patient database | Yes | Yes |
| Customizable reports | Yes | Yes |
| Report output format | Word .doc | Adobe PDF |
| Operating system | Windows 7 | Windows 8 or 7 |
| Patient-applied part<br>interface to PC | USB, untethered during<br>session | USB, tethered during session |
Both devices are goggles that record eye movements, coupled with PC-based analysis software. There are some differences. For example, the ICS Impulse System Model 1085 product only records and analyzes monocular eye data, while the ISEN-Goggles with Data Viewer records and analyzes binocular data. The ICS Impulse System Model 1085 records head position, but the ISEN-Goggles do not. The ISEN-Goggles can perform a caloric calculation, but the ICS Impulse System Model 1085 cannot.
Other differences relate to the specific components used for implementation. The ISEN-Goggles utilize battery power, while the ICS Impulse System Model 1085 goggles obtain power via USB. The ISEN-Goggles use LEDs for stimulus, while the ICS Impulse System Model 1085 uses lasers to project LED-like dots.
However, these differences do not affect the substantial equivalence; both devices are still using the same technological basis to accomplish the same purpose.
# Non-clinical Testing
Non-clinical testing for the ISEN-Goggles included electrical safety testing of the Goggles and battery charger to IEC 60601-1, electromagnetic compatibility testing of the Goggles and battery charger to IEC 60601-1-2, lamp safety to IEC 62471, compatibility with FCC regulations per 47 CFR Part 15. battery testing to IEC 62133. and biocompatibility testing to ISO 10993. In addition, hardware and software verification and validation was completed.
# Clinical Testing
No clinical testing is included in this 510(k).
{6}------------------------------------------------
ISEN-Goggles with Data Viewer 510(k) Notification
## Summary
The ISEN-Goggles with Data Viewer are substantially equivalent to the ICS Impulse System Model 1085 in intended use, device features, and use parameters.
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.