The StaClear Syringe is intended to inject fluids into, or withdraw fluids from, the body. The StaClear Syringe is indicated for intravitreal use.
Device Story
Sterile, single-use, manually operated piston syringe; used for aspiration and injection of fluids; suitable for ophthalmic applications including intravitreal injections. Operates via positive-displacement mechanics; plunger movement creates pressure differentials to move fluid. Used by trained healthcare professionals in clinical settings. Output is fluid delivery or withdrawal. Benefits patient by providing sterile, precise fluid management for ophthalmic procedures. Subject device introduces a rigid PETG tray with Tyvek lid as an alternative sterile barrier packaging configuration; no changes to syringe design, materials, or function.
Clinical Evidence
Bench testing only. Packaging integrity and sterile barrier validation performed per ISO 11607-1, including distribution simulation (ASTM D4169), accelerated aging (ASTM F1980), seal strength (ASTM F88), dye penetration (ASTM F1929), bubble leak (ASTM F2096), and visual inspection (ASTM F1886). Sterility evaluated per ISO 11737-2 under simulated aseptic handling conditions; no microbial growth observed. EO residuals confirmed within intraocular limits per ISO 10993-7.
Technological Characteristics
Manual piston syringe; 0.25 mL volume. Materials: Polypropylene (barrel/plunger), polyisoprene (stopper), 304 stainless steel (needle, SC250AN), TriboLink-Si (lubricant). Configurations: Attached needle, luer-slip, luer-lock (ISO 80369-7). Sterilization: Ethylene Oxide (SAL 10⁻⁶). Packaging: PETG tray with Tyvek lid. Standards: ISO 7886-1, ISO 7864, ISO 9626, USP <788>, USP <789>, ISO 10993.
Indications for Use
Indicated for intravitreal injection or withdrawal of fluids in patients requiring such procedures, performed by trained healthcare professionals.
Regulatory Classification
Identification
A piston syringe is a device intended for medical purposes that consists of a calibrated hollow barrel and a movable plunger. At one end of the barrel there is a male connector (nozzle) for fitting the female connector (hub) of a hypodermic single lumen needle. The device is used to inject fluids into, or withdraw fluids from, the body.
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FDA U.S. FOOD & DRUG ADMINISTRATION
November 21, 2025
StaClear, Inc.
Jackson Thornton
Director of Technology
7250 ACC Blvd.
Raleigh, North Carolina 27617
Re: K251849
Trade/Device Name: StaClear Syringe (SC250AN); StaClear Syringe (SC250LS); StaClear Syringe (SC250LL)
Regulation Number: 21 CFR 880.5860
Regulation Name: Piston Syringe
Regulatory Class: Class II
Product Code: QLY, FMF, FMI
Dated: October 28, 2025
Received: October 28, 2025
Dear Jackson Thornton:
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 (the 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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database available at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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.
Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device" (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).
U.S. Food & Drug Administration
10903 New Hampshire Avenue
Silver Spring, MD 20993
www.fda.gov
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K251849 - Jackson Thornton
Page 2
Your device is also subject to, among other requirements, the Quality System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30, Design controls; 21 CFR 820.90, Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the QS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).
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 device-related adverse events) (21 CFR Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reporting-combination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.
All medical devices, including Class I and unclassified devices and combination product device constituent parts are required to be in compliance with the final Unique Device Identification System rule ("UDI Rule"). The UDI Rule requires, among other things, that a device bear a unique device identifier (UDI) on its label and package (21 CFR 801.20(a)) unless an exception or alternative applies (21 CFR 801.20(b)) and that the dates on the device label be formatted in accordance with 21 CFR 801.18. The UDI Rule (21 CFR 830.300(a) and 830.320(b)) also requires that certain information be submitted to the Global Unique Device Identification Database (GUDID) (21 CFR Part 830 Subpart E). For additional information on these requirements, please see the UDI System webpage at https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance/unique-device-identification-system-udi-system.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-devices/medical-device-safety/medical-device-reporting-mdr-how-report-medical-device-problems.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
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K251849 - Jackson Thornton
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Sincerely,
Shruti N. Mistry -S
Shruti Mistry, M.S.
Assistant Director
DHT3C: Division of Drug Delivery and General
Hospital Devices, and Human Factors
OHT3: Office of Gastrorenal, ObGyn,
General Hospital, and Urology Devices
Office of Product Evaluation and Quality
Center for Devices and Radiological Health
Enclosure
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StaClear Syringe
Page 10 of 44
| Indications for Use | | |
| --- | --- | --- |
| Please type in the marketing application/submission number, if it is known. This textbox will be left blank for original applications/submissions. | K251849 | ? |
| Please provide the device trade name(s). | | ? |
| StaClear Syringe (SC250AN);
StaClear Syringe (SC250LS);
StaClear Syringe (SC250LL) | | |
| Please provide your Indications for Use below. | | ? |
| The StaClear Syringe is intended to inject fluids into, or withdraw fluids from, the body. The StaClear Syringe is indicated for intravitreal use. | | |
| Please select the types of uses (select one or both, as applicable). | ☑ Prescription Use (Part 21 CFR 801 Subpart D)
☐ Over-The-Counter Use (21 CFR 801 Subpart C) | ? |
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StaClear
# 510(k) Summary - K251849
Prepared in accordance with 21 CFR 807.92
StaClear Syringe – Tray Packaging Configuration
## I. Submitter Information
**Submitter:**
StaClear, Inc.
7250 ACC Blvd.
Raleigh, NC 27617
United States
**Contact:**
Jackson Thornton, Ph.D.
Director of Technology
StaClear, Inc.
Phone: 1-919-838-6716
Email: info@staclear.com
**Date prepared:** 28 October 2025
## II. Device Information
Trade Name: StaClear Syringe (SC250AN); StaClear Syringe (SC250LS); StaClear Syringe (SC250LL)
Common Name: Piston Syringe
Classification Name: Ophthalmic Syringe
Regulation Number: 21 CFR 880.5860
Regulatory Class: II
Product Code: QLY
Additional Product Code: FMF, FMI
## III. Predicate Device
K243936 StaClear Syringe (SC250AN, SC250LS, SC250LL)
The predicate device has not been subject to a design-related recall.
## IV. Device Description
The StaClear Syringe is a sterile, single-use, manually operated piston syringe intended for general-purpose aspiration and injection of fluids by trained healthcare professionals. It is suitable for
StaClear, Inc. | 7250 ACC Boulevard, Raleigh, NC 27617
+1-919-838-6716 | info@staclear.com
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StaClear, Inc. | 7250 ACC Boulevard, Raleigh, NC 27617
+1-919-838-6716 | info@staclear.com
Page 2 of 5
# StaClear
ophthalmic applications, including intravitreal injections. The syringe functions using standard positive-displacement mechanics, in which movement of the plunger creates pressure differentials to aspirate or expel fluid.
The StaClear Syringe is offered in the following configurations:
- SC250AN: Consisting of a 0.25 mL graduated barrel, plunger, plunger stopper, needle, needle shield, and optional plunger cap.
- SC250LS: Consisting of a 0.25 mL graduated barrel with an ISO 80369-7-compliant luer-slip connector, plunger, and plunger stopper.
- SC250LL: Consisting of a 0.25 mL graduated barrel with an ISO 80369-7-compliant luer-lock connector, plunger, and plunger stopper.
All three configurations were previously cleared under K243936. This submission introduces no changes to the device's design, dimensions, materials, or intended use. The only modification is the addition of a rigid PETG tray sealed with a Tyvek lid as an alternative sterile barrier packaging configuration.
The device's intended use, design, materials, sterilization method (EO), and labeled shelf life (5 years) remain unchanged.
## V. Intended Use / Indications for Use
The StaClear Syringe is intended to inject fluids into, or withdraw fluids from, the body. The StaClear Syringe is indicated for intravitreal use.
## VI. Comparison of Technological Characteristics with the Predicate Device
The subject StaClear Syringe is identical to the predicate in terms of:
- Intended use
- Technological characteristics
- Design and materials
- Syringe dimensions and configurations
- Sterilization method (ethylene oxide) and SAL (10⁻⁶)
- Shelf life (5 years)
The only modification is the addition of a validated PETG tray with Tyvek lid packaging configuration for bulk packaging.
Comparisons of the technological characteristics between the subject and predicate device are illustrated in the table below:
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StaClear, Inc. | 7250 ACC Boulevard, Raleigh, NC 27617
+1-919-838-6716 | info@staclear.com
Page 3 of 5
# TABLE 1: TECHNOLOGICAL COMPARISON OF SUBJECT AND PREDICATE DEVICE
| Attribute | Predicate Device (K243936) | Subject Device | Comparison |
| --- | --- | --- | --- |
| Device Name | StaClear Syringe | StaClear Syringe | Identical |
| Model(s) | SC250AN, SC250LS, SC250LL | SC250AN, SC250LS, SC250LL | Identical |
| Regulation Number | 21 CFR 880.5860 | 21 CFR 880.5860 | Identical |
| Product Code(s) | QLY, FMF, FMI | QLY, FMF, FMI | Identical |
| Device Classification | Class II | Class II | Identical |
| Intended Use / Indications for Use | “The StaClear Syringe is intended to inject fluids into, or withdraw fluids from, the body. The StaClear Syringe is indicated for intravitreal use.” | | Identical |
| Mechanism of Action | Manual | Manual | Identical |
| Single Use | Yes | Yes | Identical |
| Sterilization Method | Ethylene Oxide | Ethylene Oxide | Identical |
| SAL | 10^{-6} | 10^{-6} | Identical |
| Shelf Life | 5 years | 5 years | Identical |
| Syringe Volume | 0.25 mL | 0.25 mL | Identical |
| Connector Type | Attached needle (AN), Luer-slip (LS), Luer-lock (LL) | | Identical |
| Materials | Polypropylene (barrel), polypropylene (plunger)*, polyisoprene (stopper), 304 stainless steel (needle, SC250AN only), TriboLink-Si (barrel lubricant) | | Identical |
| Primary Sterile Barrier System | Tyvek pouch (SC250LS, SC250LL); Self-contained (SC250AN) | PETG tray sealed with Tyvek lid (all models) | New validated configuration; no change to syringe design |
| Sterile Barrier Validation | ISO 11607-1 for Tyvek pouch; Bacterial aerosol and USP <71> sterility testing for self-contained fluid path (SC250AN) | Validated per ISO 11607-1 using the same standards and methods as Tyvek pouch: ASTM D4169, F1980, F88, F1929, F2096, F1886 | Equivalent; validated per ISO 11607-1 using equivalent ASTM methods |
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StaClear
| TABLE 1: TECHNOLOGICAL COMPARISON OF SUBJECT AND PREDICATE DEVICE | | | |
| --- | --- | --- | --- |
| Attribute | Predicate Device (K243936) | Subject Device | Comparison |
| Open Tray Sterility | Not applicable | ISO 11737-2 sterility confirmed under simulated aseptic handling conditions | New validated attribute |
| Inner Packaging | SBS inner box | Same | Identical |
| Shipping Case | Corrugated outer case | Same | Identical |
| Performance Standards | ISO 7886-1, ISO 7864 (SC250AN), ISO 9626 (SC250AN), ISO 80369-7 (SC250LS, SC250LL), USP <788>, USP <789> | | Identical |
| Biocompatibility | ISO 10993 (cytotoxicity, sensitization, irritation, systemic toxicity, hemolysis, pyrogen) | | Identical |
| Endotoxin | USP <85> – meets intraocular limits | | Identical |
*Note: The plunger shaft was previously misidentified as polyethylene in K243936. The correct material is polypropylene, as documented in the device master record and supplier specification.
These comparisons demonstrate that the only change is to the sterile barrier packaging. No other technological characteristics differ from the predicate device.
## VII. Summary of Performance Data
All verification and validation activities were conducted in accordance with StaClear's QMS and 21 CFR 820.30. Testing included:
### Packaging integrity and sterile barrier testing per ISO 11607-1
- Distribution simulation: ASTM D4169
- Accelerated aging: ASTM F1980
- Seal strength: ASTM F88
- Dye penetration: ASTM F1929
- Bubble leak: ASTM F2096
- Visual inspection: ASTM F1886/F1886M
### Sterilization validation
- The EO sterilization process was previously validated per ISO 14937.
- Equivalence of sterilization conditions was confirmed for the tray packaging configuration.
- EO residuals were within intraocular exposure limits per ISO 10993-7.
### Open tray sterility
- Sterility was evaluated per ISO 11737-2 following a 6-hour aseptic hold after tray opening.
- No microbial growth was observed under worst-case simulated use conditions.
StaClear, Inc. | 7250 ACC Boulevard, Raleigh, NC 27617
+1-919-838-6716 | info@staclear.com
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StaClear
# Labeling Compliance
- Labeling includes the prescription device statement (Rx only), UDI, ISO 15223-1 symbols, manufacturer identification, and applicable warnings.
- New tray warning: "Tray must be opened in an aseptic environment (ISO Class 5 Laminar Flow Hood or equivalent). Use within 6 hrs of opening. Discard remaining syringes if removed from the aseptic environment or after 6 hrs."
No new or different questions of safety or effectiveness compared to the predicate were raised by the packaging modification. All verification and validation activities were conducted under StaClear's Design Control procedures in compliance with 21 CFR 820.30.
# VIII. Conclusions
The subject StaClear Syringe, when packaged in a Tyvek-lidded PETG tray, is substantially equivalent to the predicate device cleared under K243936.
The packaging change does not impact the device's intended use, design, performance, or sterilization method. All verification and validation testing confirmed that the tray packaging maintains the sterile barrier, supports the labeled shelf life and complies with FDA labeling requirements and recognized consensus standards.
The packaging change raises no new or different questions of safety or effectiveness compared to the predicate and is being submitted under the Traditional 510(k) pathway in accordance with 21 CFR 807.87.
StaClear, Inc. | 7250 ACC Boulevard, Raleigh, NC 27617
+1-919-838-6716 | info@staclear.com
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.