The Imalux OCT (Optical Coherence Tomography) Imaging System is intended to be used as an imaging tool in the evaluation of human tissue microstructure by providing two-dimensional, cross-sectional, real-time depth visualization.
Device Story
Imalux OCT Imaging System uses near-infrared (NIR) light to visualize human tissue microstructure. System comprises imaging console and detachable, flexible fiberoptic probe. NIR light from super luminescent diode (SLD) source travels through probe to tissue; backscattered light is collected and combined with internal reference signal. Spatial lateral scanning mechanism in probe enables acquisition of in-depth profiles at multiple lateral positions, constructing 2D cross-sectional images analogous to ultrasound B-scans. Console provides user interface for acquisition, display, and reporting; data exportable via Ethernet/USB. Used by clinicians to evaluate tissue microstructure. Higher spatial resolution than ultrasound but shallower imaging depth. Detachable probe facilitates sampling of various target tissues and reprocessing.
Clinical Evidence
No clinical data provided. Safety and performance supported by compliance with EN/IEC 60601-1, EN/IEC 60601-1-2, EN/IEC 60825-1, AAMI/ANSI/ISO 10993-1, and AAMI/ANSI ST35 standards. Biocompatibility testing performed on probe distal tip materials.
Technological Characteristics
NIR light source (super luminescent diode); fiberoptic delivery system with detachable probe; spatial lateral scanning mechanism; Ethernet/USB connectivity; biocompatible probe tip materials (AAMI/ANSI/ISO 10993-1); electrical safety (EN/IEC 60601-1, 60601-1-2, 60825-1).
Indications for Use
Indicated for the evaluation of human tissue microstructure, specifically skin and mucosal membranes, via two-dimensional, cross-sectional, real-time depth visualization.
Regulatory Classification
Identification
An ultrasonic pulsed echo imaging system is a device intended to project a pulsed sound beam into body tissue to determine the depth or location of the tissue interfaces and to measure the duration of an acoustic pulse from the transmitter to the tissue interface and back to the receiver. This generic type of device may include signal analysis and display equipment, patient and equipment supports, component parts, and accessories.
Special Controls
*Classification.* Class II (special controls). A biopsy needle guide kit intended for use with an ultrasonic pulsed echo imaging system only is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 892.9.
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# 510(k) SUMMARY
This summary is being submitted in accordance with 21 CFR 807.92.
# Submitter's name, address, telephone number, initial importer, contact person A.
| Submitter's Name: | Imalux Corporation |
|-------------------|-----------------------------------------------|
| Address: | 1771 East 30th Street |
| Address: | Cleveland, OH 44114 |
| Official Contact: | Stephanie A. S. Harrington |
| Title: | Vice President, Regulatory & Clinical Affairs |
| Telephone: | 216 502-0755 |
| Fax: | 216 622-0723 |
| E-mail: | harrington@imalux.com |
# Device Name, Common Name B.
# 1. Common/Usual Name
Optical Coherence Tomography Scanner
### 2. Device Name
Imalux OCT Imaging System
## 3. Classification Name
| Name | Classification<br>Regulation | Product Code | Class |
|------------------------------------------|------------------------------|--------------|-------|
| Ultrasonic pulsed echo<br>imaging system | 892.1560 | IYO | II |
# Identification of the predicate or legally marketed device C.
| Device Name | 510(k) Number |
|--------------------------------------------------------|---------------|
| Humphrey Optical Coherence Tomography (OCT)<br>Scanner | K944523 |
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#### Device Description D.
#### 1. Summary
The Imalux OCT (Optical Coherence Tomography) Imaging System utilizes near infrared (NIR) light to create high spatial resolution, real-time images near infrared (1127) be Imalux OCT Imaging System consists of an Imaging Console and a detachable, flexible fiberoptic Probe. The Imaging Console Console and a detailsptical and electrical components and a user interface system. The user interface system includes a keyboard, display, and standard Ethernet and USB ports for image data transfer.
As various tissue structural elements absorb, reflect, and scatter light As various NIR light that is backscattered from the tissue is collected and analyzed to present an image of the tissue microstructure. By analyzing andly200 to probesity as a function of tissue depth, over a lateral surface, a 2-dimensional image is constructed.
At any one lateral position, the in-depth OCT image is analogous to an At any one accrar presents backscattering intensity as a function of depth. By combining the in-depth scanning with lateral movement of the depth. Dy connemional image is created that is analogous to that of ultrasound B-scan, except that OCT uses light in lieu of sound waves. By using light instead of sound, the Imalux OCT Imaging System can achieve higher spatial resolution, but to a more shallow imaging depth, than ultrasound imaging since light is more readily attenuated in the tissue.
### Design 2.
The Scanner contains optical and electrical components, including a super luminescent diode (SLD) light source. The NIR light is directed from the Scanner through the Probe's optical fiber to the patient's tissue. The optical light is backscattered from the patient's tissue, collected by the Probe's fiber, and, combined with an internal reference signal, to produce a high spatial resolution image of the superficial tissue microstructure. By using a spatial lateral scanning mechanism contained within the probe, the optical Strain scans laterally across the tissue surface while simultaneously acquiring an in-depth profile at each lateral position. By combining inacquiring an in-depth profits at cash internet System produces a two-dimensional cross-sectional image of the tissue microstructure.
The Imaging Console has a user interface for acquiring, displaying, and reporting images. Image data is stored onto the system and can be exported via Ethernet or USB data ports on the console.
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#### 3. Materials
The external materials of the Probe distal tip are commonly used medical device materials and have been evaluated for biocompatibility. This evaluation, supported with biocompatibility testing, has demonstrated that these materials are safe for the Probe's intended use.
# Intended Use E.
The Imalux OCT (Optical Coherence Tomography) Imaging System is intended to be used as an imaging tool in the evaluation of human tissue microstructure by providing two-dimensional, cross-sectional, real-time denth visualization.
While the Humphrey's indication is for ocular use, imaging of sensitive eye tissue, the Imalux OCT Imaging System is indicated for use on tissue types such as skin and mucosal membranes. While the indications are different, the indications for the Imalux OCT device and the Humphrey OCT device are both within the same intended use and a comparison of their respective technologies and functional characteristics shows that the Imalux device is at least as safe and effective as the Humphrey device for this intended use.
# Safety & Performance F.
To assure the safety of the device, the System has been tested to and complies with the standards listed below:
> EN / IEC 60601-1 EN / IEC 60601-1-2 EN / IEC 60825-1 AAMI / ANSI / ISO 10993-1 AAMI / ANSI ST35
The Imalux OCT Imaging System is substantially equivalent to the Humphrey OCT Scanner as both devices employ the same technology, Optical Coherence Tomography, and have the same intended use of revealing tissue structural information by providing two-dimensional, crosssectional, real-time depth visualization.
Both the Imalux OCT Imaging System and the Humphrey OCT Scanner employ NIR light that is transported through a fiberoptic connection. The Imalux device uses a detachable, fiberoptic Probe that facilitates the transport of NIR light between the Imaging Console and the patient tissue; whereas, the Humphrey OCT Scanner has a fiberoptic imaging head that is connected to the console. By using a detachable, fiberoptic Probe, the
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Imalux device can acquire images from different target tissues and facilitate reprocessing; whereas, the Humphrey device requires that the patient be positioned in close proximity to the imaging head, a design which is compatible for the device's indication for scanning ocular tissue. The Imalux device permits tissue image sampling, consistent with its indication for use, while employing the same fundamental OCT technological characteristics.
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DEPARTMENT OF HEALTH & HUMAN SERVICES
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 stylized eagle with three stripes representing the department's mission. The eagle is encircled by the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" in a circular arrangement. The logo is black and white.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
MAR - 1 2004
Ms. Stephanie A.S. Harrington Vice President, Regulatory and Clinical Affairs Imalux Corporation 1771 East 30th Street Cleveland, Ohio 44114
Rc: K033783
Trade/Device Name: Imalux OCT Imaging System Regulation Number: 21 CFR 892.1560 Regulation Name: Ultrasonic pulsed echo imaging system Regulatory Class: II Product Code: NQQ Dated: December 3, 2003 Received: December 4, 2003
Dear Ms. Harrington:
We have reviewed your Section 510(k) premarket notification of intent to market the device we nave reviewed your becamed the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate 101 use stated in the eneksbare) to the enactment date of the Medical Device Amendments, or to commerce price to May 20, 1978, the excordance with the provisions of the Federal Food, DINAA de vices that have been require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The r ou may, mercere, market the act include requirements for annual registration, listing of general controls provisions of vactice, 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 11 your device ts clashinod (600 a00 royols. Existing major regulations affecting your device can may be subject to such additional controller Lifting - Parts 800 to 898. In addition, I'DA may be found in are be obserning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination docs not mean Ficase oe advised that 1171 5 issualite or our device complies with other requirements of the Act that I DA has made a determinations administered by other Federal agencies. You must or any I coleral statutes and regalations and limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set CI'N I at 607), adomig (21 OF N Part 820), and if applicable, the elcottonic forth in the quality systems (Sections 531-542 of the Act); 21 CFR 1000-1050.
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Page 2 - Ms. Stephanie A.S. Harrington
This letter will allow you to begin marketing your device as described in your Section 510(k) I ms lotter will and in your he FDA finding of substantial equivalence of your device to a legally prematical 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), please it you active of Compliance at (301) 594-4659. Also, please note the regulation entitled, "Misbranding by reference to promarket notification" (21CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small other general international and Consumer Assistance at its toll-frec number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html
Sincerely yours.
Sincerely yours,
Mark A. Millenson
Celia M. Witten, Ph.D., M.D. Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# INDICATIONS FOR USE 4
K033783 510(k) Number (if known):
Device Name:
Imalux OCT Imaging System
Indications For Use:
The Imalux OCT (Optical Coherence Tomography) Imaging System is The Imatux OUT (Option of in the evaluation of human tissue microstructure by providing two-dimensional, cross-sectional, real-time depth visualization.
AND/OR Prescription Use _ V (Part 21 CFR 801 Subpart D)
Over-The-Counter Use _________________________________________________________________________________________________________________________________________________________ (21 CFR 807 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE – CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
| | <img alt="Signature" src="signature.png"/> |
|--|--------------------------------------------|
|--|--------------------------------------------|
for (Division Sign-Off)
Division of General, Restorative,
and Neurological Devices
| 510(k) Number | K033783 |
|---------------|---------|
|---------------|---------|
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.