K100468 · Carl Zeiss Surgical GmbH · IZI · Mar 3, 2010 · Radiology
Device Facts
Record ID
K100468
Device Name
ZEISS INFRARED 800 WITH FLOW 800 OPTION
Applicant
Carl Zeiss Surgical GmbH
Product Code
IZI · Radiology
Decision Date
Mar 3, 2010
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 892.1600
Device Class
Class 2
Attributes
Real-World Evidence, 3rd-Party Reviewed
Real-World Evidence
Submission
Device
Sponsor
RWD Sources
RWE Use Summary
Key Tags
K100468 · Mar 3, 2010
ZEISS INFRARED 800 WITH FLOW 800 OPTION
Carl Zeiss Surgical GmbH
Peer-reviewed clinical literature
The sponsor provided a literature review of clinical studies documenting the use of the INFRARED 800 accessory with ICG angiography in hundreds of patients across various surgical specialties to demonstrate clinical utility in visualizing blood flow and vessel patency.
Literature review; Intra-operative blood flow; ICG angiography; Neurosurgery; Vascular assessment
Clinical Evidence
Study Design
Population
Comparator
Key Endpoints
Clinical literature review; Literature review of clinical studies
Patients undergoing neurosurgery, plastic and reconstructive procedures, and coronary artery bypass graft surgery; Sample Size: Hundreds of patients
Not applicable for this study
Visualization and assessment of blood flow, vessel patency, aneurysm closure, and AVM vessel detection
Indications for Use
INFRARED 800 with the FLOW 800 option used during fluorescence guided surgery aids in viewing the visual assessment of intra-operative blood flow as well as vessel patency in surgical procedures in neurosurgery, plastic and reconstructive procedures and coronary artery bypass graft surgery.
Device Story
INFRARED 800 with FLOW 800 is a surgical microscope accessory for the OPMI Pentero. It uses Indocyanine Green (ICG) dye as a contrast agent. The device illuminates the surgical field to excite the dye and detects the resulting fluorescent signal via CCD cameras. FLOW 800 provides a processing mode for handling and visualizing the captured video data. Used in the OR by surgeons, the system provides real-time visualization of blood flow and vessel patency. This allows surgeons to assess aneurysm clipping, vessel occlusion, and anastomosis patency during neurosurgical, plastic, reconstructive, and coronary bypass procedures. The output aids clinical decision-making by confirming successful surgical outcomes and identifying potential complications like vessel remnants or flow blockages, potentially improving patient safety.
Clinical Evidence
No clinical trials conducted by the manufacturer; evidence based on a review of peer-reviewed medical literature. Literature documents use in hundreds of patients across various procedures including cerebral aneurysms, AVMs, bypass surgery, and free flap transfers. Reported applications include assessment of aneurysm sac closure, visualization of neck remnants, detection of AVM feeding/nidal/draining vessels, and verification of anastomosis patency.
Technological Characteristics
Accessory to OPMI Pentero surgical microscope. Utilizes CCD cameras for infrared fluorescence detection. Employs Indocyanine Green (ICG) as a fluorescent contrast agent. System provides real-time video data processing and visualization. Connectivity is integrated with the surgical microscope platform.
Indications for Use
Indicated for intra-operative blood flow visualization and assessment in cerebral vascular area (aneurysm, vessel branch occlusion, perforating vessels), AVM surgery (pre/post-op vessel type assessment), and bypass surgical procedures in neurosurgery, plastic, reconstructive, and coronary artery bypass graft surgery.
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.
{0}------------------------------------------------
510(k) Premarket Notification INFRARED 800 with FLOW 800 option
K100468
# 510(K) SUMMARY
## SECTION 5.
#### 5. 510(K) SUMMARY
## 510(k) SUMMARY (per 21 CFR §807.92)
MAR - 3 2010
11
## INFRARED 800 with FLOW 800 Option
## GENERAL INFORMATION
Manufacturer:
Carl Zeiss Surgical GmbH Carl Zeiss Strasse 22 73447 Oberkochen, Germany 49 7364-20-2555 (phone) 49 7364-20-2035 (fax) Est. Reg. No. 2431026
Contact Person:
Judith A. Brimacombe, MA Director, Regulatory/Clinical Affairs Carl Zeiss Meditec Inc. 5160 Hacienda Drive Dublin, California 94568 (925) 557-4616 (phone) (925) 557-4259 (fax)
| Date Summary Prepared: | December 22, 2009 |
|-------------------------|--------------------------------------|
| Classification name: | System, X-Ray, Angiographic |
| Classification: | 21 CFR 892.1600 |
| Regulatory Class: | II |
| Product Code: | IZI |
| Trade/Proprietary name: | INFRARED 800TM with FLOW® 800 option |
## PREDICATE DEVICES
Company: Device:
Leica Microsystems Leica FL800 (K061871, K080612)
Company: Device:
Novadaq Technologies, Inc. SPY Intra Operative Imaging System: SP2000 (K042961, K060867, K063345, K071037, K072222, K071619, K073088)
{1}------------------------------------------------
## SECTION 5.
# 510(K) SUMMARY
#### INTENDED USE
INFRARED 800 with the FLOW 800 option used during fluorescence guided surgery aids in viewing the visual assessment of intra-operative blood flow as well as vessel patency in surgical procedures in neurosurgery, plastic and reconstructive procedures and coronary artery bypass graft surgery.
## INDICATIONS FOR USE
The Carl Zeiss Surgical INFRARED 800 with the FLOW 800 option is a surgical microscope accessory used in viewing and visual assessment of intra-operative blood flow in the cerebral vascular area including, but not limited to, assessing cerebral aneurysm and vessel branch occlusion, as well as patency of very small perforating vessels. It also aids in the real-time visualization of blood flow and visual assessment of vessel types before and after Arteriovenous Malformation (AVM) surgery. Likewise, INFRARED 800 with the FLOW 800 option used during fluorescence guided surgery aids in the visual assessment of intra-operative blood flow as well as vessel patency in bypass surgical procedures in neurosurgery, plastic and reconstructive procedures and coronary artery bypass graft surgery.
## DEVICE DESCRIPTION
INFRARED 800 with the FLOW 800 option is an accessory to the OPMI Pentero surgical microscope for visualizing blood flow intraoperatively. INFRARED 800 allows the surgical microscope to produce light to illuminate the fluorescence properties of the Indocyanine Green (ICG) dye and to detect the emitted fluorescent signal to examine the human vascular system during surgery. FLOW 800 provides the surgeon with a processing mode that allows convenient handling and visualization of the INFRARED 800 video data.
#### SUBSTANTIAL EQUIVALENCE
INFRARED 800 with the FLOW 800 option is substantially equivalent to the Leica FL800 and Novadaq SPY Intra Operative Imaging System. Each system utilizes either a surgical stereo microscope or angiographic optical imaging system, and has the same basic functions for viewing, recording, and replaying fluorescent images. Similar CCD cameras are utilized as sensors and the infrared options are equivalent. Each device utilizes the same type of fluorescent agent, Indocyanine Green (ICG), to visualize blood flow. Using white light and/or fluorescence and similar ICG excitation. realtime visualization of images takes place in equivalent transmission ranges.
The indications for use for INFRARED 800 with the FLOW 800 option are similar to the indications for use for the predicate devices cited in this application. A technological comparison and testing demonstrate that the INFRARED 800 with the
{2}------------------------------------------------
## SECTION 5.
# 510(K) SUMMARY
FLOW 800 option is functionally equivalent to the predicate devices. Evaluation performed on the INFRARED 800 with the FLOW 800 option supports the indications for use statement and demonstrates that the device is substantially equivalent to the predicate devices and does not raise new questions regarding safety and effectiveness.
## CLINICAL EVALUATION
Clinical data on INFRARED 800 with the FLOW 800 option has been collected by various researchers and is reported in the clinical literature. A review of the clinical literature that discusses the relevant studies has been included in this Premarket Notification. It includes citations from peer-reviewed medical literature which documents that the Carl Zeiss Surgical INFRARED 800 accessory with Indocyanine Green (ICG) angiography has been used in hundreds of patients to visualize and assess blood flow for various types of surgeries including cerebral aneurysms, arteriovenous malformations (AVM), bypass surgery and free flap transfers.
The clinical report describes the following applications and findings for the INFRARED 800 accessory with the FLOW 800 option:
## CEREBRAL ANEURYSMS:
- 치 Assessment of cerebral aneurysm via evaluating complete or incomplete closure of aneurysm sac after clipping
- Visualization of aneurysm neck remnants
- Vessel branch occlusion via assessing flow of parent and branching vessels I
- . Evaluation of patency of very small perforating vessels not visible by digital subtraction angiography
## AVMs:
- I Detection of AVM vessels via real-time visualization of blood flow in feeding arteries, nidal vessels and draining veins
## Bypass surgery and free flap transplantation:
- . Assessment of patency of vessels joined by anastomosis in neurosurgery, plastic and reconstructive procedures and coronary artery bypass graft surgery
## SUMMARY
As described in this 510(k) Summary, all testing deemed necessary was conducted on INFRARED 800 with the FLOW 800 option to ensure that the device is safe and effective for its intended use when used in accordance with its Instructions for Use.
{3}------------------------------------------------
Image /page/3/Picture/0 description: The image shows the seal of the Department of Health & Human Services (HHS) of the United States. The seal features a stylized eagle with its wings spread, symbolizing protection and service. The words "DEPARTMENT OF HEALTH & HUMAN SERVICES • USA" are arranged in a circular pattern around the eagle, indicating the department's name and national affiliation.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room W-O66-0609 Silver Spring, MD 20993-0002
MAR - 3 2010
Carl Zeiss Surgical GmbH % Underwriters Laboratories, Inc. Mr. Ned Devine 333 Pfingsten Road Northbrook, Illinois 60062
Re: K100468
Trade/Device Name: INFRARED 800™ with FLOW® 800 option Regulation Number: 21 CFR 892.1600 Regulation Name: Angiographic x-ray system Regulatory Class: Class II Product Code: IZI Dated: February 11, 20102 Received: February 18, 2010
Dear Mr. Devine:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. 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.
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
{4}------------------------------------------------
Page 2 - Mr. Ned Devine -
CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm11.5809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
Mark N. Melkerso Director Division of Surgical, Orthopedic And Restorative Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{5}------------------------------------------------
## SECTION 4.
## INDICATIONS FOR USE STATEMENT
4. INDICATIONS FOR USE STATEMENT
510(k) Number (if known):
Device Name:
INFRARED 800™ with FLOW® 800 option
Indications for Use:
The Carl Zeiss Surgical INFRARED 800 with the FLOW 800 option is a surgical microscope accessory used in viewing and visual assessment of intra-operative blood flow in the cerebral vascular area including, but not limited to, assessing cerebral aneurysm and vessel branch occlusion, as well as patency of very small perforating vessels. It also aids in the real-time visualization of blood flow and visual assessment of vessel types before and after Arteriovenous Malformation (AVM) surgery. Likewise, INFRARED 800 with the FLOW 800 option used during fluoressence guided surgery aids in the visual assessment of intra-operative blood flow as well as vessel patency in bypass surgical procedures in neurosurgery, plastic and reconstructive procedures and coronary artery bypass graft surgery.
Prescription Use x (Part 21 CFR 801 Subpart D)
AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
| Concurrence of CDRH, Office of Device Evaluation (ODE) | <i>Neil R</i> for <i>man</i> |
|-----------------------------------------------------------|------------------------------|
| (Division Sign-Off) | |
| Division of Surgical, Orthopedic, and Restorative Devices | Page 1 of 1 |
| 510(k) Number | K100468 |
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.