Diagnostic ultrasound imaging or fluid flow analysis of the human body as follows: Ophthalmic. The OIS provides real-time, high-resolution images of the intraocular anatomy and is, therefore, useful in evaluation of pathologies of the anterior segment such as trauma, tumors, cysts, and glaucoma. It can also be used during ophthalmic surgery to monitor the changes in anatomical structures such as the anterior angle, Schlemm's canal and related outflow structures of the eye, for glaucoma management.
Device Story
Ophthalmic Imaging System (OIS) provides noninvasive, real-time, high-resolution ultrasound imaging of anterior eye segment. System comprises handpiece with high-frequency transducer, Transducer Interface Module (TIM), and PC with display. Uses sterile disposable Imaging Gel Cap for direct eye contact; optional sterile Sheath Adapter Assembly for sterile field applications. Physician operates system to visualize intraocular anatomy; aids evaluation of pathologies (trauma, tumors, cysts, glaucoma) and surgical monitoring of anterior angle and Schlemm's canal. Images stored on PC hard drive. Benefits include improved visualization of ocular structures for clinical decision-making and glaucoma management.
Clinical Evidence
Bench testing only. No clinical data provided.
Technological Characteristics
High-frequency, mechanically scanned ultrasound transducer (Model OIS-HP-80A). Pulse-echo imaging technique. System includes handpiece, Transducer Interface Module (TIM), and PC. Biocompatible patient-contact materials. B-mode operation. PC-based image storage and display.
Indications for Use
Indicated for ophthalmic diagnostic ultrasound imaging of the anterior segment of the eye, including evaluation of trauma, tumors, cysts, glaucoma, and intraoperative monitoring of anatomical structures like the anterior angle and Schlemm's canal.
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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K05/304
3 2005 JUN
# 510(K) Summary
| Submitter's Name: | iScience Surgical Corporation | |
|----------------------------|---------------------------------------------------|---------------|
| Submitter's Address: | 3696A Haven Avenue<br>Redwood City, CA 94063 | |
| Submitter's Telephone: | Phone (650) 421-2700<br>Fax (650) 421-2701 | |
| Contact Name: | Ron Yamamoto | |
| Date Summary was Prepared: | April 20, 2005 | |
| Trade or Proprietary Name: | iScience Surgical Ophthalmic Imaging System (OIS) | |
| Common or Usual Name: | Ultrasound Echo Imaging System | |
| Classification Name: | System, Imaging, Pulse Echo Ultrasound | |
| Predicate Devices: | Device Name | 510(k) Number |
| | UBM Plus, Model P45 | K003141 |
| | Artemis Ultrasonic Arc-Scan System | K021333 |
## Description of the Device and Summary of the Technological Characteristics:
The Ophthalmic Imaging System (OIS) is an ultrasound system designed for noninvasive imaging of the anterior segment of the eye through the use of standard ultrasound imaging pulse-echo techniques.
The system consists of a handpiece containing a high-frequency transducer, connected to interfacing electronics in the Transducer Interface Module (TIM) which is in turn connected to a personal computer with video display. Software developed by iScience Surgical runs on the computer controlling the system and generating the image.
The OIS is used with a sterile disposable tissue interface (Imaging Gel Cap) which is attached to the handpiece for direct contact with the eye during imaging. The OIS may also be used with a sterile Sheath Adapter Assembly for sterile field applications.
## Substantial Equivalence:
The OIS device is similar to predicate devices such as the UBM Plus, Model P45 from Paradigm Medical Industries and the Artemis VHF Ultrasound Arc-scan System from Ultralink LLC. Like the OIS device, these predicate devices are intended to provide high resolution ultrasound images of the anterior portion of the eye. All systems use a very high frequency, mechanically scanned transducer and use patient contact materials that are biocompatible and have a history of use in medical devices. The images are all displayed on video and/or PC monitors. All systems have similar medical electronic controllers and utilize standard computer hard drives to store images.
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DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/1/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is an abstract symbol resembling an eagle or bird in flight, composed of three curved lines.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
3 2005 JUN
iScience Surgical Corporation % Mr. Mark Job Responsible Third Party Official Regulatory Technology Services LLC 1394 25th Street NW BUFFALO MN 55313
Re: K051304
Trade Name: iScience Surgical Ophthalmic Imaging System Regulation Number: 21 CFR 892.1560 Regulation Name: Ultrasonic pulsed echo imaging system Regulation Number: 21 CFR 892.1570 Regulation Name: Diagnostic ultrasonic transducer Regulatory Class: II Product Code: IYO and ITX Dated: May 16, 2005 Received: May 19, 2005
Dear Mr. Job:
We have reviewed your Section 510(k) premarket notification of intent to market the indication in We have reviewed your Section 310(K) prothanter no is substantially equivalent (for the indications) referenced above and we nave decemined and as a concess marketed in interstate for use stated in the encrosury manative production produced Device Amendments, or to
commerce prior to May 28, 1976, the enactment date of the Federal Food Frank commerce prior to May 20, 1770, the enabilities with the provisions of the Federal Food, Drug, and devices that have been reclassified in accreadios the device, subject to the general controls Cosmetic Act (Act). Tou may, morelors, haravisions of the Act include requirements for annual provisions of the Act. "The general controlation practice, labeling, and prohibitions against misbranding and adulteration.
This determination of substantial equivalence applies to the following transducers intentificatiffication I his determination of substantal equivaled appress to as described in your premarket notification:
## Transducer Model Number
## OIS-HP-80A
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it If your device is classifica (Sec above) into enas con regulations affecting your device can be may be subject to Such additions, Title 21, Parts 800 to 898. In addition, FDA may publish found in the Oous ents concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that Please be advised that YDA's Issualled of a saccamatics with other requirements of the Act of any FDA has made a decemination that your are rederal agencies. You must comply with all
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Page 2 - Mr. Job
the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); the Act's requirements, including, but not innica to: regaritments as set forth in the quality
labeling (21 CFR Part 801); good manufacturing practice requirements as et rodu labeling (21 CFR Part 801); good manufacturing practice requirences on en en entrol
systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radia systems (QS) regalation (21 -542 of the Act); 21 CFR 1000-1050.
This determination of substantial equivalence is granted on the prior to shipping the fi This determination of substantial equivalence is grante should contain complete first device, you submit a posiclearantes special reportuction line devices, requested in
information, including acoustic output measurements based on production in a product information, including acoustic output neasur information for Manufacturers Seeking
Appendix G, (enclosed) of the Center's September 30, 1997 "Information " is Appendix G, (enclosed) of the Center's Septems and Transducers." If the special report is Marketing Clearance of Diagnosic Offically and Iran granter than approved byels), then
incomplete or contains unacceptable values (e.g., acoustic one new may be considered incomplete or contains unaceeplable values (e:g., accusers cappling of the production of the 510(k)
the 510(k) clearance may not apply to the production units which as a resu adulterated or misbranded.
The special report should reference the manufacturer's 510(k) number. It should be clearly and the The special report should reference the manufactured be submitted in duplicate to:
> Food and Drug Administration Center for Devices and Radiological Health Document Mail Center (HFZ-401) 9200 Corporate Boulevard Rockville, Maryland 20850
This letter will allow you to begin marketing your device as described in your premarket notification. I his letter will anow you to begin mancems your device to a legally marketed predicate device The FDA finding of substantial equivalence of your device to began y
results in a classification for your device and thus permits your device to proceed to market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please If you desire specific advice for your device of your and success note the regulation entitied, contact the Office of Compliance at (210) 270 - 120.97). You may obtain other "Misoranaing by relevelice to premarket nother (Act from the Division of Small Manufacturers, general information on your responsionnies ander the risober (800) 638-2041 or (301) 443-6597 or International and Ootisainer Tiow.fda.gov/cdrl/industry/support/index.html
If you have any questions regarding the content of this letter, please contact Dr. Ewa Czerska at (301) 594-1212.
Sincerely yours,
Robe Pally
\$\xi\$
Nancy C. Brogdon Director, Division of Reproductive, Abdominal and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure(s)
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### 4.3 Indications for Use
iScience Surgical Ophthalmic Imaging System System: Intended Use: Diagnostic ultrasound imaging or fluid flow analysis of the human body as follows:
| Clinical Application | | Mode of Operation | | | | | Comb. Modes | Other |
|------------------------------|-------------------------------------------------|-------------------|---|---------|---------|---------------|-------------|-------|
| | | B | M | PW<br>D | CW<br>D | Color<br>Dopp | | |
| General<br>(Track I<br>Only) | Specific<br>(Tracks I & III) | | | | | | | |
| Ophthalmic | Ophthalmic | N | | | | | | |
| Fetal<br>Imaging<br>& Other | Fetal | | | | | | | |
| | Abdominal: | | | | | | | |
| | Intra-operative (Spec.) | | | | | | | |
| | Intra-operative (Neuro) | | | | | | | |
| | Laparoscopic | | | | | | | |
| | Pediatricd: | | | | | | | |
| | Small Organ (Thyroid,<br>Breast, Testes, etc.): | | | | | | | |
| | Neonatal Cephalic: | | | | | | | |
| | Adult Cephalic: | | | | | | | |
| | Trans-rectal: | | | | | | | |
| | Trans-vagina | | | | | | | |
| | Trans-urethral | | | | | | | |
| | Trans-esoph. (non-<br>Card.) | | | | | | | |
| | Musculo-skel.<br>(Convent.): | | | | | | | |
| | Musculo-skel.<br>(Superfic): | | | | | | | |
| | Intra-luminal | | | | | | | |
| | Other (Specify) | | | | | | | |
| Cardiac | Cardiac Adult | | | | | | | |
| | Cardiac Pediatric | | | | | | | |
| | Trans-esoph.<br>(Cardiac) | | | | | | | |
| | Other (Specify) | | | | | | | |
| Peripheral<br>Vessel | Peripheral vessel: | | | | | | | |
| | Other (Specify) | | | | | | | |
N= new indication; P= previously cleared by FDA; E= added under Appendix E
Additional Comments: The OIS provides real-time, high-resolution images of the intraocular anatomy and is, therefore, useful in evaluation of pathologies of the anterior segment such as trauma, tumors, cysts, and glaucoma. It can also be used during ophthalmic surgery to monitor the changes in anatomical structures such as the anterior angle, Schlemm's canal and related outflow structures of the eye, for glaucoma management.
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of Center for Devices and Radiological Health, Office of Device Evaluation
Prescription Use (Per 21 CFR 801.109) <
(Division Sign-Off)
Division of Reproductive, Abdominal,
and Radiological Devices
510(k) Number K051304
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K05/304
iScience Surgical Ophthalmic Imaging System System:
OIS-HP-80A Transducer:
Transucer. follows:
| Clinical Application | | Mode of Operation | | | | | | Other |
|------------------------------|------------------------------------------------|-------------------|---|---------|---------|---------------|----------------|-------|
| General<br>(Track I<br>Only) | Specific<br>(Tracks I & III) | B | M | PW<br>D | CW<br>D | Color<br>Dopp | Comb.<br>Modes | |
| Ophthalmic | Ophthalmic | N | | | | | | |
| Fetal<br>Imaging<br>& Other | Fetal | | | | | | | |
| | Abdominal | | | | | | | |
| | Intra-operative (Spec.) | | | | | | | |
| | Intra-operative (Neuro) | | | - | | | | |
| | Laparoscopic | | | | | | | |
| | Pediatric: | | | | | | | |
| | Small Organ (Thyroid,<br>Breast, Testes, etc.) | | | | | | | |
| | Neonatal Cephalic: | | | | | | | |
| | Adult Cephalic: | | | | | | | |
| | Trans-rectal: | | | | | | | |
| | Trans-vaginal: | | | | | | | |
| | Trans-urethral | | | | | | | |
| | Trans-esoph. (non-<br>Card.) | | | | | | | |
| | Musculo-skel.<br>(Convent.): | | | | | | | |
| | Musculo-skel.<br>(Superfic): | | | | | | | |
| | Intra-luminal | | | | | | | |
| | Other (Specify) | | | | | | | |
| Cardiac | Cardiac Adult | | | | | | | |
| | Cardiac Pediatric | | | | | | | |
| | Trans-esoph. (Cardiac) | | | | | | | |
| | Other (Specify) | | | | | | | |
| Peripheral<br>Vessel | Peripheral vessel | | | | | | | |
| | Other (Specify) | | | | | | | |
N= new indication; P= previously cleared by FDA; E= added under Appendix E
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of Center for Devices and Radiological Health, Office of Device Evaluation
Prescription Use (Per 21 CFR 801.109)
Rate Phelps
(Division Sign-Off) Division of Reproductive, Abdominal, and Radiological Devices 510(k) Number _
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Learn the FDA Browser
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.