SURGIMAGE SIM 1000H Fluorescence Imaging Platform: Upon intravenous administration and use of ICG (Indocyanine Green) consistent with its approved label, the SIM 1000H System is used with ICG(Indocyanine Green) to perform intraoperative fluorescence angiography. The SIM 1000H System is indicated for use in adult. The SIM 1000H System is indicated for fluorescence imaging of blood flow and tissue perfusion before, during, and after: vascular, gastrointestinal, organ transplant, and plastic, micro- and reconstructive surgical procedures. Upon interstitial administration and use of ICG (Indocyanine Green) consistent with its approved label, the SIM 1000H System is used to perform intraoperative fluorescence imaging and visualization of the lymphatic system, including lymphatic vessels and lymph nodes. Upon intradermal administration and use of ICG (Indocyanine Green) consistent with its approved label, the SIM 1000H System is indicated for fluorescence imaging of lymph nodes and delineation of lymphatic vessels during lymphatic mapping in adults with breast cancer for which this procedure is a component of intraoperative management.
Device Story
Real-time fluorescence imaging system; utilizes near-infrared (NIR) illumination and white-light; captures fluorescence and reflected signals via handheld camera (SIM 100H-PT/PB) and server (SIM 500). Operates with ICG contrast agent; provides visual assessment of blood flow, tissue perfusion, and lymphatic structures. Used intraoperatively by surgeons; output displayed for real-time surgical guidance. Enables visualization of perfusion and lymphatic mapping; assists clinical decision-making during complex surgical procedures.
Clinical Evidence
No clinical data. Bench testing only. Comparative performance testing against predicate evaluated Contrast-to-Noise Ratio, fluorescence detection depth, and spatial resolution. Electrical safety (AAMI ES60601-1), EMC (IEC 60601-1-2), usability (IEC 62366-1), and laser safety (IEC 60825-1) testing confirmed compliance.
Technological Characteristics
Handheld camera and server processing unit. NIR excitation (775-810 nm laser, Class 3R) and LED white-light. Detection at 825/850 nm. 1080p resolution. Real-time processing of fluorescence and reflected signals. Non-patient contacting.
Indications for Use
Indicated for adult patients. Used for intraoperative fluorescence angiography (blood flow/tissue perfusion) in vascular, gastrointestinal, organ transplant, and plastic/micro/reconstructive surgeries; visualization of lymphatic system/nodes; and lymphatic mapping in breast cancer patients.
Regulatory Classification
Identification
An angiographic x-ray system is a device intended for radiologic visualization of the heart, blood vessels, or lymphatic system during or after injection of a contrast medium. This generic type of device may include signal analysis and display equipment, patient and equipment supports, component parts, and accessories.
Predicate Devices
SPY Portable Handheld Imaging (SPY-PHI) System (K230727)
Submission Summary (Full Text)
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FDA U.S. FOOD & DRUG ADMINISTRATION
May 13, 2026
SurgImage Corporation
Vince Chen
Product Manager
4f., No. 183, No. 185, No.187, No 189,4f.-1, No. 185,
5F.,NO. 183,NO. 185,NO.187,NO.189,5F.-1,NO. 185, Gangqian Rd
Taipei City, 11494
Taiwan
Re: K253181
Trade/Device Name: SURGIMAGE SIM 1000H Fluorescence Imaging Platform
Regulation Number: 21 CFR 892.1600
Regulation Name: Angiographic X-Ray System
Regulatory Class: Class II
Product Code: IZI
Dated: January 15, 2026
Received: January 15, 2026
Dear Vince Chen:
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.
U.S. Food & Drug Administration
10903 New Hampshire Avenue
Silver Spring, MD 20993
www.fda.gov
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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).
Your device is also subject to, among other requirements, the Quality Management System Regulation (QMSR) (21 CFR Part 820), which includes, but is not limited to, ISO 13485 clause 7.3 (Design controls), ISO 13485 clause 8.3 (Nonconforming product), ISO 13485 clause 8.5.2 (Corrective action), and ISO 13485 clause 8.5.3 (Preventative action). Please note that regardless of whether a change requires premarket review, the QMSR requires device manufacturers to review and approve changes to device design and production (ISO 13485 clause 7.3 and ISO 13485 clause 7.5) and document changes and approvals in the Medical Device File (ISO 13485 clause 4.2.3).
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 Management System Regulation (QMSR) (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-
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K253181 - Vince Chen
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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).
Sincerely,
JESSICA CARR -S
Jessica Carr, PhD
Assistant Director
DHT4A: Division of General Surgery Devices
OHT4: Office of Surgical and Infection Control Devices
Office of Product Evaluation and Quality
Center for Devices and Radiological Health
Enclosure
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| 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. | K253181 | ? |
| Please provide the device trade name(s). | | ? |
| SURGIMAGE SIM 1000H Fluorescence Imaging Platform | | |
| Please provide your Indications for Use below. | | ? |
| SURGIMAGE SIM 1000H Fluorescence Imaging Platform: Upon intravenous administration and use of ICG (Indocyanine Green) consistent with its approved label, the SIM 1000H System is used with ICG(Indocyanine Green) to perform intraoperative fluorescence angiography. The SIM 1000H System is indicated for use in adult. The SIM 1000H System is indicated for fluorescence imaging of blood flow and tissue perfusion before, during, and after: vascular, gastrointestinal, organ transplant, and plastic, micro- and reconstructive surgical procedures. Upon interstitial administration and use of ICG (Indocyanine Green) consistent with its approved label, the SIM 1000H System is used to perform intraoperative fluorescence imaging and visualization of the lymphatic system, including lymphatic vessels and lymph nodes. Upon intradermal administration and use of ICG (Indocyanine Green) consistent with its approved label, the SIM 1000H System is indicated for fluorescence imaging of lymph nodes and delineation of lymphatic vessels during lymphatic mapping in adults with breast cancer for which this procedure is a component of intraoperative management. | | |
| 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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K253181
# 510(k) Summary
## I. Submitter
SurgImage Corporation
4F., NO. 183, NO. 185, NO.187, NO 189, ` 4F.-1, NO. 185, ` 5F., NO. 183, NO. 185, NO.187, NO.189, ` 5F.-1, NO. 185, GANGQIAN RD. TAIPEI CITY 11494 Taiwan
Phone: (+886)928608064
Contact Person: Mr. Vince Chen
Contact Email: vince@surgimage.com.tw
Date Prepared: April 22, 2026
## II. Device
Name of Device: SURGIMAGE SIM 1000H Fluorescence Imaging Platform
Common Name: Fluorescence Angiographic System
Classification Name: Angiographic X-Ray System, 21 CFR 892.1600
Regulatory Class: Class II
Product Code: IZI
## III. Predicate Device
SPY Portable Handheld Imaging (SPY-PHI) System, K230727
Product Code: IZI
## IV. Device Description
The SIM 1000H Fluorescence Imaging Platform is a real-time white-light and near-infrared illumination/ fluorescence imaging system used during surgery. Near-infrared illumination is used for fluorescence imaging using ICG (Indocyanine Green) for the visual assessment of blood flow, tissue perfusion and visualization of the lymphatic system, including lymphatic vessels and lymph nodes. It consists of the Imaging Scope (SIM 100H-PT/PB) and the Medical Imaging Server(SIM 500).
## V. Indications for Use
SURGIMAGE SIM 1000H Fluorescence Imaging Platform: Upon intravenous administration and use of ICG (Indocyanine Green) consistent with its approved label, the SIM 1000H System is used with ICG(Indocyanine Green) to perform intraoperative fluorescence angiography. The SIM 1000H System is indicated for use in adult. The SIM 1000H System is indicated for fluorescence imaging of blood flow and tissue perfusion before, during, and after: vascular, gastrointestinal, organ transplant, and plastic, micro- and reconstructive surgical procedures. Upon interstitial administration and use of ICG (Indocyanine Green) consistent with its approved label, the SIM 1000H System is used to perform intraoperative fluorescence imaging and visualization of the lymphatic system, including lymphatic vessels and lymph nodes. Upon intradermal administration and use of ICG (Indocyanine Green) consistent with its approved label, the SIM 1000H System is indicated for fluorescence imaging of lymph nodes and delineation of lymphatic vessels during lymphatic mapping in adults with breast cancer for which this procedure is a component of intraoperative management.
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K253181
Comparison to Predicate: The Indications for Use of the subject device are comparable to those of the predicate device. The main difference is that the predicate device specifically calls out use of the device with a particular ICG product (SPY AGENT GREEN), while the indications of use for the subject device denote use of ICG consistent with its approved label. It is also noted that the intended use population for the subject device includes adults only, while that of the predicate device includes adults and pediatrics. These differences do not raise concerns of safety or effectiveness.
# VI. Comparison of Technological Characteristics with the Predicate Device
The subject device (SIM 1000H) and the predicate device (SPY-PHI) share the same fundamental technological characteristics. Both include a handheld camera and a processing unit, use near-infrared excitation with indocyanine green (ICG) for fluorescence imaging, and provide white-light illumination for visible imaging. Both capture fluorescence and reflected signals, process them in real time, and output intraoperative images.
| Device & Predicate Device(s): | K253181 | K230727 |
| --- | --- | --- |
| General Device Characteristics | | |
| Imaging Modes | White Light, NIR Fluorescence | White Light, NIR Fluorescence |
| Contrast Agent | ICG | SPY AGENT GREEN (indocyanine green for injection) |
| Excitation light source | Laser (Class 3R) | Laser (Class 3R) |
| Excitation wavelength | 775 - 810 nm | 805 nm |
| Detection wavelength | 825 and 850 nm | 830 – 900 nm |
| Excitation light source power output | 40.4 mW/cm2 | 2 mJ/pulse |
| Repetition rate | 30 pulses/s; 15 pulses/s | 20 pulses/s (Overlay mode); 40 pulses/s (SPY mode) |
| Pulse duration | 2 ms | 8.33 ms (Overlay mode); 10 ms (SPY mode) |
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K253181
| Device & Predicate Device(s): | K253181 | K230727 |
| --- | --- | --- |
| Visible light source | LED | LED |
| Beam Divergence | 48°± 5° | 50°± 5° |
| Image Resolution | 1080p | 1080p |
Note: Comparative performance testing was conducted to confirm equivalent ICG detection despite the differences in imaging specifications (i.e., wavelength, power output, repetition rate, pulse duration) between the subject and predicate devices.
## VII. Performance Testing
The device(SIM 1000H) was evaluated for electrical safety, electromagnetic compatibility (EMC), usability, laser safety, performance, and software in accordance with international standards.
1) Electrical Safety: In accordance with AAMI ES60601-1:2005, ES60601-1:2005/AMD1:2012, ES60601-1:2005/AMD2:2021, testing demonstrated compliance with basic safety requirements.
2) Electromagnetic Compatibility (EMC): In accordance with IEC 60601-1-2:2014 + A1:2020, Medical electrical equipment, representative emissions and immunity tests confirmed compliance with EMC requirements.
3) Usability: In accordance with IEC 60601-1-6:2010, AMD1:2013, AMD2:2020, in conjunction with IEC 62366-1:2015, AMD1:2020.
4) Laser Safety: In accordance with IEC 60825-1:2014, confirming compliance with safety requirements for laser products.
5) Performance Testing – Bench: Bench testing was conducted to verify that the device meets design input specifications and defined performance requirements. Furthermore, comparative performance testing was performed between the subject and predicate devices to demonstrate substantial equivalence in ICG imaging performance including assessment of (1) Contrast-to-Noise Ratio as a function of excitation light intensity and fluorescence concentrations at different regions of the imaging field, (2) fluorescence detection depth, and (3) spatial resolution.
6) Software: In accordance with IEC 62304:2006 + AMD1:2015.
All test results met the applicable acceptance criteria.
Note: The device(SIM 1000H) is not patient contacting. Therefore, biocompatibility does not apply.
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K253181
## VIII. Conclusions
The SURGIMAGE SIM 1000H Fluorescence Imaging Platform is the same or similar in intended use and fundamental technological characteristics to the predicate device. The non-clinical data support the safety of the device, and the comparative performance testing demonstrates that the SIM 1000H performs comparably to the predicate device. The combination of these data demonstrates that the subject device is the same or similar, with respect to safety and effectiveness, to the legally marketed predicate device.
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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.
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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.