The Zeta Diagnostic Retinal Imaging System is intended to be used to capture, archive, and display digital images of the eye, particularly the retina obtained through the use of an ophthalmic camera (fundus camera). The Zeta System is an automated imaging device used in conjunction with a fundus camera that requires minimal intervention during the capture of an image. The system is simple to use and requires minimal training for a user to become proficient with the system. Like the listed predicate devices, the Zeta System is comprised of a digital imaging camera or cameras, computer hardware, and a software platform intended to be used to store images captured by the fundus camera. Thus the Zeta Diagnostic Retinal Imaging System has the same intended use and indications as the listed predicate devices.
Device Story
System captures, archives, and displays digital retinal images; operates in conjunction with a fundus camera. Input: optical retinal images from fundus camera. Transformation: digital sensor head and capture card digitize images; proprietary 'eyepix' software manages acquisition, storage, and retrieval. Output: digital images, proof sheets, or prints. Used in clinical settings by ophthalmologists or photographers. User monitors retinal orientation and focus through fundus camera; software provides interface for image manipulation and storage on local hard drive or removable media (tape, Jazz discs, CD). Benefits: facilitates documentation and review of retinal pathologies.
Clinical Evidence
Bench testing only. Software validation tests performed to demonstrate that the device meets system and software standards exhibited by predicate devices.
Technological Characteristics
System includes digital sensor head, computer interface capture card, CPU, monitor, keyboard, and mouse. Operates via fundus camera illumination and digital capture. Software platform manages image acquisition, storage, and retrieval. Connectivity via local storage or removable media (Magnetic Tape, Jazz discs, CD).
Indications for Use
Indicated for capturing, archiving, recalling, and displaying black and white and color images of the retina via non-invasive angiography using an ophthalmic camera. Indicated for individuals where examination of the fundus has been requested for pathologies.
Regulatory Classification
Identification
An ophthalmic camera is an AC-powered device intended to take photographs of the eye and the surrounding area.
Special Controls
*Classification.* Class II (special controls). The device, when it is a photorefractor or a general-use ophthalmic camera, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 886.9.
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JUL 2 6 2002
K022164
# 510(k) Summary
Zeta Development Laboratories
Name of device: Zeta Diagnostic Retinal Imaging System
Common or usual name: Camera, Ophthalmic (AC Powered)
Classification Name: Ophthalmic Camera (per 21 CFR.886.1120)
Product Code: HKI
Submitter: Zeta Development Laboratories 4990 Hillsdale Circle, Suite 400 El Dorado Hills, CA 95762 Phone: (916) 941-0800 Facsimile: (916) 941-8345 Contact Person: Mark T. Fukuhara Date Prepared: 20 May 2002
### Predicate Devices
| Trade Name | Manufacturer | 510 (k) |
|-------------------------------------|----------------------------|---------|
| WinStation Retinal Imager | Ophthalmic Imaging Systems | K982689 |
| Ophthavision Imaging System | MRP Group, Inc. | K980295 |
| ImageScope Digital Imaging System | Tomey Corporation USA | K971685 |
| Imagenet Digital Ophthalmic Imaging | Topcon | K870039 |
## Intended Use
The Zeta Diagnostic Retinal Imaging System is intended to be used to capture, archive, and display digital images of the eye, particularly the retina obtained through the use of an ophthalmic camera (fundus camera). The Zeta System is an automated imaging device used in conjunction with a fundus camera that
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requires minimal intervention during the capture of an image. The system is simple to use and requires minimal training for a user to become proficient with the system. Like the listed predicate devices, the Zeta System is comprised of a digital imaging camera or cameras, computer hardware, and a software platform intended to be used to store images captured by the fundus camera. Thus the Zeta Diagnostic Retinal Imaging System has the same intended use and indications as the listed predicate devices.
#### Substantial Equivalence
The Zeta Diagnostic Retinal Imaging System and the predicate devices listed all have the same intended use: to capture and archive images of the retina taken with a fundus camera. The Zeta Diagnostic Retinal Imaging System and the predicate devices listed have similar or the same principles of operation and technological characteristics. Each of the devices is a digital ophthalmic camera system. The user views the patient's retina through a fundus camera. A light source is used to illuminate the retina and the fundus triggers the digital cameras to capture images of the retina. These digitized images are then archived for future use or record.
The Zeta Diagnostic Retinal Imaging System, the Ophthalmic Imaging Systems WinStation Digital Imaging System, and the MRP Group's OphthaVision system have significantly similar technological characteristics including the exact same digital cameras used to capture images taken by a fundus camera.
The Zeta Diagnostic Retinal Imaging System and all of the listed predicate devices use, and are operated by, PC's with keyboards and a hand operated mouse. While there may be some very minor differences in types of processor (Intel Pentium III or IV or AMD Athelon) processors speed, and software platform, these minor differences do not raise any new issues of safety or effectiveness and do not affect the imaging capabilities of the Zeta Device or any of the predicate devices listed.
The Zeta Diagnostic Retinal Imaging System and all of the predicate devices have the same basic software functions: image acquisition, storage, analysis, and retrieval. The principle differences can be found in the graphical user interface.
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Most software platforms found in the predicate devices are windows based and effectively function using different screens for different functions, and drop down menus and graphic buttons to control, or perform, various tasks in the capture, archive, and recall of images.
These slight differences do not raise new or additional questions regarding safety or efficacy in the Zeta or other predicate systems. Zeta Development Laboratories has performed several software validation tests the results of which clearly indicate that the Zeta device meets comparable system and software standards exhibited by the predicate devices listed.
The Zeta system and all of the predicate devices listed are operated in the same manner. The Ophthalmologist, or Photographer, views the patients eye through an ophthalmic camera (fundus camera) with a digital camera mounted on this ophthalmic camera to capture, manipulate and archive images using the graphical user software interface. The Zeta system and all of the predicate devices listed use the system software to manipulate images into produce proof sheets (photo collages of the patients eye captured during the procedure) the software also carries the capabilities of printing individual images or proof sheets, view individual photos or proof sheets on the computer monitor, and to archive selected captured images onto the computers hard drive or several types of removable media such as Magnetic Tape, Jazz discs or standard CD's.
#### Performance characteristics
The Zeta Diagnostic Retinal Imaging System is comprised of the following components: A digital sensor head (digital camera) a computer interface circuit board (digital image capture card), and connecting cables. These components are then combined and sold together with our "eyepix" proprietary imaging software and a computer (CPU) monitor, keyboard and mouse. This total system with imaging software provides acquisition and hardware control capabilities used in conjunction with a fundus camera to take digital pictures of the retina which are then transferred via the digital camera and connecting cable to the computer system where they can be viewed, modified, stored or printed. The Zeta system is intended to capture and store images of the fundus, and it is also indicated for use as an ophthalmic camera for individuals where examination of the fundus have been requested for pathologies.
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The Zeta Diagnostic Retinal Imaging System user software interface allows images from the fundus camera to be acquired, monitored, stored and retrieved. Imaging focusing and camera orientation in relation to the retina are controlled by the user. With verification and monitoring by the user, the software allows the user to monitor, capture, and process, verifying the device is operating correctly. The image viewed through the fundus camera and acquired by Zeta's system is then stored as individual images in a non compressed state on the hard drive of the computer to be displayed electronically as the user requires it.
### Conclusion
The Zeta Development Laboratories Retinal Imaging System has the same intended use, indications, and very similar principals of operation to the predicate devices listed. The Zeta System has similar technological characteristics (hardware and software) to the Tomey and Topcon systems and exactly the same technical characteristics as the Ophthalmic Imaging Systems and MRP Group. Inc.'s Products. The minor differences between the Zeta product and those of the listed predicate devices do not raise any new questions of safety or the effectiveness of the Zeta system in comparison to the predicate devices. Thus the Zeta Development Laboratories Diagnostic Retinal Imaging System is substantially equivalent to legally marketed ophthalmic camera systems.
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Image /page/4/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular border with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" arranged around the perimeter. Inside the circle is a stylized symbol featuring three human profiles facing to the right, with flowing lines beneath them, resembling a stylized representation of people and movement.
Public Health Service
JUL 2 6 2002
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Zeta Development Laboratories c/o Mr. Michael Kwan 1655 Scott Blvd. Santa Clara, Ca 95050
Re: K022164
Trade/Device Name: Zeta Diagnostic Retinal Imaging System Regulation Number: 868.1120 Regulation Name: Ophthalmic Camera Regulatory Class: Class II Product Code: HKI Dated: July 23, 2002 Received: July 24, 2002
#### Dear Mr. Kwan:
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.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such 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); 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.
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This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 and additionally 21 CFR Part 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4613. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html
Sincerely yours,
A. Ralph Rosenthal
A. Ralph Rosenthal, M.D. Director Division of Ophthalmic and Ear, Nose and Throat Devices Office of Device Evaluation Center for Devices and Radiological Health
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# Statement of Indications for Use
510(k) Number (if Known): k022164
Zeta Diagnostic Retinal Imaging System Device Name:
### Indications for Use :
The Zeta Diagnostic Retinal Imaging System is intended to be used to capture, archive, recall and display black and white, and color images of the retina captured using an ophthalmic camera during angiography non-invasively.
. ....
(PLEASE DO NOT WRITE BELOW THIS LINE—CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
| (Division Sign-Off) | |
|-----------------------------------------------------|--|
| Division of Ophthalmic Ear, Nose and Throat Devises | |
| Prescription Use (Per CFR 21 801.109) | <div> <span>✓</span> </div> |
|---------------------------------------|-----------------------------|
| 510(k) Number | K022164 |
| | or |
| | Over-the-counter Use |
Sec 10: 1 of 1
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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.
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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.