K160878 · Lightlab Imaging, Inc. · NQQ · Jun 29, 2016 · Radiology
Device Facts
Record ID
K160878
Device Name
OPTIS Metallic Stent Optimization E.4 SW
Applicant
Lightlab Imaging, Inc.
Product Code
NQQ · Radiology
Decision Date
Jun 29, 2016
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 892.1560
Device Class
Class 2
Indications for Use
The OPTIS™ Software with Dragonfly™ DUO or Dragonfly™ OPTIS™ Imaging Catheter is intended for the imaging of coronary arteries and is indicated in patients who are candidates for transluminal interventional procedures. The Dragonfly™ DUO or Dragonfly ™ OPTIS™ Imaging Catheter is intended for use in vessels 2.0 to 3.5 mm in diameter. The Dragonfly™ DUO or Dragonfly™ OPTIS™ Imaging Cathesters is not intended for use in the left main coronary artery or in a target vessel which has undergone a previous bypass procedure. The OPTIS™ Software will further acquire radio frequency signal outputs from both a distal intracoronary pressure transducer and a proximal aortic pressure transducer to determine the physiological parameter, Fractional Flow Reserve (FFR). The physician may use the FFR parameter, along with knowledge of patient history, medical expertise and clinical judgment to determine if therapeutic intervention is indicated.
Device Story
Software upgrade for existing OCT systems (ILUMIEN OPTIS, OPTIS Mobile, OPTIS Integrated). Inputs: OCT imaging data from Dragonfly catheters; pressure waveform data from distal intracoronary and proximal aortic transducers. Processing: OCT image acquisition, scan conversion (polar to raster via bilinear interpolation), FFR computation (mean pressure values over heart cycles), and proprietary image processing for automatic segmentation of vessel lumen, side branches, guidewires, and metallic stent struts. Outputs: 2D/3D OCT images, stent apposition maps, stent roadmaps, and FFR values. Used in clinical settings by physicians for intra-procedural guidance during interventional procedures. Benefits: enhanced visualization of ostium geometry, stent strut apposition, and co-registration of OCT/angiography to assist in therapeutic decision-making.
Clinical Evidence
Bench testing only. Software verification and validation conducted in compliance with IEC 62304:2006 and DICOM 2015b standards. No clinical data presented.
Technological Characteristics
Software-based OCT imaging and FFR computation system. Runs on 64-bit Windows 7 Embedded. Uses bilinear interpolation for scan conversion. Integrates COTS libraries (Open Inventor, LEADTOOLS, SQL Server Express 2008). Connectivity via DICOM servers. Features automated segmentation algorithms for vessel structures and metallic stents. Compatible with Dragonfly DUO/OPTIS catheters.
Indications for Use
Indicated for patients who are candidates for transluminal interventional procedures requiring coronary artery imaging. Vessels 2.0 to 3.5 mm diameter. Contraindicated for left main coronary artery or vessels with previous bypass procedures.
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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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
June 29, 2016
Lightlab Imaging, Inc. Padmini Suravaram Regulatory Affairs Specialist 4 Robbins Road Westford, MA 01866
Re: K160878
Trade/Device Name: Optis™ Metallic Stent Optimization E.4 SW Regulation Number: 21 CFR 892.1560 Regulation Name: Ultrasonic Pulsed Echo Imaging System Regulatory Class: Class II Product Code: NOO Dated: April 18, 2016 Received: April 20, 2016
Dear Padmini Suravaram:
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 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical devicerelated 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.
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If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education 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. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 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 Industry and Consumer Education 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 vours
Mitchell Stein
for Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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#### Indications for Use
510(k) Number (if known) K160878
Device Name OPTIS Metallic Stent Optimization E.4 SW
#### Indications for Use (Describe)
The OPTIS™ Software with Dragonfly™ DUO or Dragonfly™ OPTIS™ Imaging Catheter is intended for the imaging of coronary arteries and is indicated in patients who are candidates for transluminal interventional procedures. The Dragonfly™ DUO or Dragonfly ™ OPTIS™ Imaging Catheter is intended for use in vessels 2.0 to 3.5 mm in diameter. The Dragonfly™ DUO or Dragonfly™ OPTIS™ Imaging Catheter is not intended for use in the left main coronary artery or in a target vessel which has undergone a previous bypass procedure.
The OPTIS™ Software will further acquire radio frequency signal outputs from both a distal intracoronary pressure transducer and a proximal aortic pressure transducer to determine the physiological parameter, Fractional Flow Reserve (FFR). The physician may use the FFR parameter, along with knowledge of patient history, medical expertise and clinical judgment to determine if therapeutic intervention is indicated.
| Type of Use (Select one or both, as applicable) |
|-------------------------------------------------|
|-------------------------------------------------|
X Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
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## K160878
## Lightlab Imaging, Inc. OPTIS METALLIC STENT OPTIMIZATION E.4 SW 510(k) Summary (Per 21 CFR 807.92(c))
#### 1. SPONSOR/MANUFACTURER
LightLab Imaging, Inc. 4 Robbins Road Westford, MA 01886
| Contact Person: | Padmini Suravaram |
|-----------------|-------------------|
| Telephone: | 978-577-3483 |
Date Prepared: 03/28/16
#### 2. DEVICE NAME
| Proprietary Name: | OPTIS™ Metallic Stent Optimization E.4 SW |
|----------------------|-------------------------------------------|
| Common/Usual Name: | Ultrasonic pulsed echo imaging system |
| Classification Name: | Ultrasonic pulsed echo imaging system |
#### 3. PREDICATE DEVICE
Predicate Device: Lightlab Imaging, Inc. OPTIS™ Mobile System, K152120
#### 4. DEVICE DESCRIPTION
The Metallic Stent Optimization SW E.4 is an OCT system software that allows update of the current software version of ILUMIEN OPTIS (K150878), OPTIS Mobile System (K152120) and OPTIS Integrated OCT Systems (K151286) on the field for the Stent Optimization Tool features. The Metallic Stent Optimization SW E.4 is also compatible with flush catheters compatible with the above mentioned OCT systems (Dragonfly OPTIS and Dragonfly DUO catheters).
The OCT system software is used to control the OCT imaging engine in order to acquire OCT images, it is used to make measurements based on acquired OCT images, it is used to maintain a database of OCT images and data, and it is used to review previously acquired OCT images and data.
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# K160878
The OCT System software is also used to control the Aortic (AO) and PressureWire (PW) USB receivers to collect and store pressure waveform data for computing Fractional Flow Reserve (FFR). Similar to the OCT images, the FFR waveforms are stored in the database and are available for later review.
The OPTIS™ Metallic Stent Optimization E.4 SW software runs on 64-bit Microsoft Windows 7 Embedded Operating System only. The software also contains Intel JPEG Library, Microsoft MPEG-4 Video Codec, Microsoft Video 1 codec, AMD FirePro V4900 Display Adapter Driver, Intel 82579LM/82583V Gigabit Ethernet Controller Driver, Microsoft Foundation Class Library, Active Template Library, Microsoft Standard C++ Library, LEADTOOLS Medical Imaging Suite SDK, Microsoft SQL Server Express 2008 Service Pack 2 (SP2), Open Inventor Library, Haru PDF Library, IDEA Video Driver, iWRAP Bluetooth Stack and Intel Integrated Performance Primitives commercial off the shelf (COTS) software.
The E.4 software introduces the following new features:
- . 3D Flythrough, 3D Bifurcation (Bifurcation Visualization)- Enhance assessment of ostium geometry with optimized 3D views
- Cross Frame Angio (Stent Roadmap) Display stent roadmap with . OCT/angiography coregistrations
- Stent Display (Quantification of Stent Strut Apposition, Metallic Stent . Visualization) and 3D Display Options (Guide Wire Detection, Side Branch Detection) - Provide intra-procedural guidance by automatic detection and 3D visualization of BMS struts, side branches, and guidewires
### INDICATIONS FOR USE
The OPTIS™ Software with Dragonfly™ DUO or Dragonfly™ OPTIS™ Imaging Catheter is intended for the imaging of coronary arteries and is indicated in patients who are candidates for transluminal interventional procedures. The Dragonfly™ DUO or Dragonfly ™ OPTIS™ Imaging Catheter is intended for use in vessels 2.0 to 3.5 mm in diameter. The DragonflyTM DUO or DragonflyTM OPTIS™ Imaging Catheter is not intended for use in the left main coronary artery or in a target vessel which has undergone a previous bypass procedure.
The OPTIS™ Software will further acquire radio frequency signal outputs from both a distal intracoronary pressure transducer and a proximal aortic pressure transducer to determine the physiological parameter, Fractional Flow Reserve (FFR). The physician may use the FFR parameter, along with knowledge of patient history, medical expertise
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and clinical judgment to determine if therapeutic intervention is indicated.
## 5. TECHNOLOGICAL CHARACTERISTICS AND SUBSTANTIAL EQUIVALENCE
The OPTIS™ Metallic Stent Optimization E.4 SW is substantially equivalent in terms of product design, materials of construction, operational and technological features, clinical use, and target population.
Both the proposed OPTIS™ Metallic Stent Optimization E.4 SW and the predicate device OCT System Software perform OCT Image acquisition and FFR. This application is preformed through the System OCT Software. The OPTIS application software and firmware is responsible for controlling the OCT system hardware for the purposes of acquiring raw OCT image data in polar format and scan converting it to raster format for display on the screen using a bilinear interpolation algorithm. This data is stored in a proprietary variant of the TIFF format. The software is also responsible for controlling the FFR hardware for the purposes of acquiring raw aortic and distal pressure waveforms, computing the mean pressure values over a user-defined number of heart cycles, and computing the resulting Fractional Flow Reserve and/or Resting Pd/Pa parameters from the mean pressure waveforms. For both modalities, the software provides storage and retrieval functionality including database storage of the corresponding patient demographic information using the commercial off the shelf SQL Server Express database. The software also enables storage of the OCT and FFR data in a variety of file formats on external DICOM servers.
In addition to providing the basic OCT and FFR modalities, the software contains a number of proprietary OCT image processing algorithms for automatically calibrating the images and segmenting the vessel lumen, side branches, guide wires and metallic stent struts, using a commercial off the shelf volume rendering library (Open Inventor) to provide an interactive 3D display of the image data and segmented objects in a variety of formats. The software also contains a number of proprietary angio image processing algorithms to track the Dragonfly Duo and OPTIS lens marker to provide a complete two dimensional Co-Registration between each OCT frame and each angio frame from simultaneously acquired image sequences.
The OPTIS™ Metallic Stent Optimization E.4 SW represents an upgrade to the predicate device OCT System software in terms of offering the following features:
- . Metallic Stent optimization and Stent Apposition Mapping
- . Stent Roadmap on Angio Co-registration
- Enhanced 3D Views ●
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- Lumen Profile default is on ●
- Side-branch display o
- . Guide wire display
- . OCT/Angio export
- . Rotational stabilization improvement
- . Intravascular OCT (IVOCT) DICOM file format
- . Improved Coregistration Workflow
- . Improved OCT Frame Indicator on Angio
- . Bookmarks Displayed on Angio
- . New Home Screen
- Improved DICOM Export Workflow .
- XA added to DICOM Modality Worklist Query .
- On-Screen Display of Lumen Dimensions o
- Scrolling of Full Screen 3D Display
#### 6. PERFORMANCE TESTING
The OPTIS™ Metallic Stent Optimization E.4 SW has been developed and tested in compliance with IEC 62304: 2006 and DICOM Standard: 2015b. Software verification and validation was conducted to FDA regulations, standards and guidance document requirements. The results of this testing conclude the software has met these requirements. Design verification and validation was also performed in compliance with internal design control procedures.
The results of this testing conclude the OPTIS™ Metallic Stent Optimization E.4 SW is determined to be safe and effective and is substantially equivalent to the predicate OPTIS Mobile System software.
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.