The IVUS modality of the System is intended for ultrasound examinations of intravascular pathology. Intravascular ultrasound is indicated in patients who are candidates for transluminal procedures such as angioplasty and atherectomy. FFR and DFR™ are intended for use in catheterization and related cardiovascular specialty laboratories to compute, and display various physiological parameters based on the output from one or more electrodes, transducers, or measuring devices. FFR and DFR are indicated to provide hemodynamic information for use in the diagnosis and treatment of patients that undergo measurement of physiological parameters. Refer to the Catheter Instructions for Use provided with all Boston Scientific Ultrasound Imaging Catheters to determine compatibility with the System. All Ultrasound Imaging Catheters will be referred to as Imaging Catheters throughout the remainder of this User Guide. The Imaging Catheters generate ultrasound images and are intended for ultrasound examination of vascular and cardiac pathology. Boston Scientific manufactures a wide variety of catheters for different applications. The recommended use of each of these catheters may vary depending on the size and type of the catheter. Please refer to the Imaging Catheter Instructions for Use, packaged with each catheter. Indications for Auto Pullback Use (IVUS Only) Automatic Pullback is indicated when the following occurs: - The physician/operator wants to standardize the method in which intravascular ultrasound images are obtained and documented: procedure-to-procedure, operator-to-operator. - The physician/operator wants to make linear determinations post-procedurally, which requires the imaging core of a catheter to be pulled back at a known uniform speed. - Two-dimensional, longitudinal reconstruction of the anatomy is desired.
Device Story
AVVIGO+ Multi-Modality Guidance System provides intravascular/intracardiac anatomical imaging and physiological assessment. Inputs: pressure wire signals (via FFR Link) and ultrasound data from miniaturized catheter probes. Processing: PC-based acquisition/processing of ultrasound images and physiological parameters. Output: interactive display showing hemodynamic data, ultrasound images, vessel/lumen border traces, and DFR graphical pullback support. Used in catheterization labs by physicians/operators. Modifications include V4 Acquisition PC, mobile pole updates, and Table Side Controller for bedside access. System aids clinical decision-making by providing standardized hemodynamic information and anatomical visualization, potentially improving procedural outcomes for patients undergoing vascular/cardiac interventions.
Clinical Evidence
No clinical data. Substantial equivalence based on non-clinical performance verification and validation, including hardware, software, electrical safety, and packaging testing.
Technological Characteristics
Multi-modality system comprising V4 Acquisition PC, mobile pole, Table Side Controller, and compatible ultrasound imaging catheters. Standards: ANSI AAMI ES 60601-1, IEC 60601-1-2, IEC 60601-2-34, IEC 60601-2-37, IEC 62304, AAMI TIR69. Connectivity: Wireless FFR Link. Software: Updated vessel/lumen border trace functionality, GUI with frame markers and DFR pullback support.
Indications for Use
Indicated for patients undergoing transluminal interventional procedures (angioplasty, atherectomy) requiring intravascular ultrasound (IVUS) imaging or hemodynamic physiological assessment (FFR/DFR) in cardiovascular specialty laboratories.
Regulatory Classification
Identification
A programmable diagnostic computer is a device that can be programmed to compute various physiologic or blood flow parameters based on the output from one or more electrodes, transducers, or measuring devices; this device includes any associated commercially supplied programs.
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Image /page/0/Picture/0 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). The logo consists of two parts: the Department of Health & Human Services logo on the left and the FDA acronym along with the full name of the agency on the right. The FDA part of the logo is in blue, with the acronym in a square and the full name, "U.S. Food & Drug Administration," written out next to it.
September 26, 2023
Boston Scientific Corporation Kevin Catalano Principal Regulatory Affairs Specialists Two Scimed Place Maple Grove, Minnesota 55311
Re: K230884
Trade/Device Name: AVVIGO+ Multi-Modality Guidance System Regulation Number: 21 CFR 870.1110 Regulation Name: Blood Pressure Computer Regulatory Class: Class II Product Code: DSK, IYO, DSK, ITX Dated: August 23, 2023 Received: August 24, 2023
#### Dear Kevin Catalano:
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. 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 located 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.
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
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801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-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 4. Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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 https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-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/medicaldevices/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-device-advice-comprehensive-regulatoryassistance/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,
# Stephen C. Browning -S
LCDR Stephen Browning Assistant Director Division of Cardiac Electrophysiology, Diagnostics and Monitoring Devices Office of Cardiovascular Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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### Indications for Use
510(k) Number (if known) K230884
Device Name AVVIGO+ Multi-Modality Guidance System
#### Indications for Use (Describe)
The IVUS modality of the System is intended for ultrasound examinations of intravascular pathology. Intravascular ultrasound is indicated in patients who are candidates for transluminal procedures such as angioplasty and atherectomy.
FFR and DFR™ are intended for use in catheterization and related cardiovascular specialty laboratories to compute, and display various physiological parameters based on the output from one or more electrodes, transducers, or measuring devices. FFR and DFR are indicated to provide hemodynamic information for use in the diagnosis and treatment of patients that undergo measurement of physiological parameters.
Refer to the Catheter Instructions for Use provided with all Boston Scientific Ultrasound Imaging Catheters to determine compatibility with the System. All Ultrasound Imaging Catheters will be referred to as Imaging Catheters throughout the remainder of this User Guide.
The Imaging Catheters generate ultrasound images and are intended for ultrasound examination of vascular and cardiac pathology. Boston Scientific manufactures a wide variety of catheters for different applications. The recommended use of each of these catheters may vary depending on the size and type of the catheter. Please refer to the Imaging Catheter Instructions for Use, packaged with each catheter.
Indications for Auto Pullback Use (IVUS Only) Automatic Pullback is indicated when the following occurs:
- The physician/operator wants to standardize the method in which intravascular ultrasound images are obtained and documented: procedure-to-procedure, operator-to-operator.
- · The physician/operator wants to make linear determinations post-procedurally, which requires the imaging core of a catheter to be pulled back at a known uniform speed.
· Two-dimensional, longitudinal reconstruction of the anatomy is desired.
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)
#### CONTINUE ON A SEPARATE PAGE IF NEEDED.
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Image /page/4/Picture/1 description: The image shows the logo for Boston Scientific. The text is in a dark blue color. The word "Boston" is on the top line, and the word "Scientific" is on the bottom line.
## 510(k) Summary
per 21 CFR 807.92
| Sponsor | Boston Scientific Corporation<br>300 Boston Scientific Way<br>Marlborough, Massachusetts 01752<br>USA |
|---------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Contact Name and<br>Information | Kevin Catalano<br>Prin. Regulatory Affairs Specialist<br>Phone: 612.817.2987<br>E-mail: Kevin.Catalano@bsci.com |
| Date Prepared | March 31, 2023 |
| Proprietary Name | AVVIGO™+ Multi-Modality Guidance System |
| Common Name | Computer Diagnostic Programmable<br>Blood Pressure Computer<br>Ultrasonic Pulsed Echo Imaging System<br>Diagnostic Ultrasonic Transducer |
| Classification Name | Primary:<br>21 CFR 870.1425 (Programmable Diagnostic Computer)<br>Subsequent:<br>21 CFR 870.1110 (Blood Pressure Computer)<br>21 CFR 892.1560 (Ultrasonic Pulsed Echo Imaging System)<br>21 CFR 892.1570 (Diagnostic Ultrasonic Transducer) |
| Product Code | Primary:<br>DQK (Computer, Diagnostic, Programmable)<br>Subsequent:<br>DSK (Computer, Blood-Pressure)<br>IYO (System, Imaging, Pulsed Echo, Ultrasonic)<br>ITX (Transducer, Ultrasonic, Diagnostic) |
| Classification | Class II, 21 CFR 870.1425 |
| Predicate Device | AVVIGO™ Guidance System II<br>K212490 cleared 03 OCT 2021 |
#### Device Description
The AVVIGO™+ Multi-Modality Guidance System is used by physicians to obtain physiologic, intravascular, and/or intracardiac anatomical information. The system utilizes an interactive display that displays information and allows the physician to:
- Perform intravascular physiology assessment by making measurements with a pressure ● wire that invasively obtains pressure readings from the vessels, and an FFR Link that retrieves the information from the pressure wire and transfers the information wirelessly to the interactive display, and/or
- Perform intravascular or intracardiac ultrasound imaging using a specially designed . catheter with a miniaturized ultrasound probe attached to the distal end and a Motor Drive. A PC is used for data acquisition and processing to visualize ultrasound images of selected anatomical structures.
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Image /page/5/Picture/1 description: The image shows the logo for Boston Scientific. The text is in a blue serif font. The word "Boston" is on the top line, and the word "Scientific" is on the bottom line.
The AVVIGO™+ Multi-Modality Guidance System hardware has been modified to include a V4 Acquisition PC for IVUS image processing, updates to the mobile pole, and a Table Side Controller user interface for user control access near the patient bedside.
The AVVIGO™+ Multi-Modality Guidance System software includes updated vessel and lumen border trace functionality to improve ease of use. Additionally, the AVVIGO+ Multi-Modality Guidance System GUI includes visual display of frame markers as well as graphical display of DFR with pullback support.
The AVVIGO™+ Multi-Modality Guidance System underlying fundamental principles and technology supporting IVUS and Physiology modalities are unmodified from that of the predicate. IVUS and FFR/DFR remain identical to that of the predicate device, AVVIGO Guidance System II.
AVVIGO™ + Multi-Modality Guidance System modifications do not raise any new issues of safety and effectiveness.
#### Intended Use/indications for Use
The IVUS modality of the System is intended for ultrasound examinations of intravascular pathology. Intravascular ultrasound is indicated in patients who are candidates for transluminal interventional procedures such as angioplasty and atherectomy.
FFR and DFR™ are intended for use in catheterization and related cardiovascular specialty laboratories to compute, and display various physiological parameters based on the output from one or more electrodes, transducers, or measuring devices.
FFR and DFR are indicated to provide hemodynamic information for use in the diagnosis and treatment of patients that undergo measurement of physiological parameters.
Refer to the Catheter Instructions for Use provided with all Boston Scientific Ultrasound Imaging Catheters to determine compatibility with the System. All Ultrasound Imaging Catheters will be referred to as Imaging Catheters throughout the remainder of this User Guide.
The Imaging Catheters generate ultrasound images and are intended for ultrasound examination of vascular and cardiac pathology. Boston Scientific manufactures a wide variety of catheters for different applications. The recommended use of each of these catheters may vary depending on the size and type of the catheter. Please refer to the Imaging Catheter Instructions for Use, packaged with each catheter.
Indications for Auto Pullback Use (IVUS Only)
Automatic Pullback is indicated when the following occurs:
- The physician/operator wants to standardize the method in which intravascular . ultrasound images are obtained and documented: procedure-to-procedure, operatorto-operator.
- . The physician/operator wants to make linear distance determinations postprocedurally, which requires the imaging core of a catheter to be pulled back at a known uniform speed.
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#### Two-dimensional, longitudinal reconstruction of the anatomy is desired.
#### Comparison of Technological Characteristics
The AVVIGO™ + Multi-Modality Guidance System has the same intended use, operational principles and technological characteristics supporting its intended use as the predicate device, AVVIGO™ Guidance System II. The AVVIGO™+ Multi-Modality Guidance System is substantially equivalent to the predicate device in intended use, IVUS and Physiology modalities, fundamental scientific technology and performance features supporting IVUS and Physiology modalities. Modifications within the AVVIGO™+ Multi-Modality Guidance System do not raise any new issues of safety and effectiveness as demonstrated via non-clinical performance data.
#### Non-Clinical Performance Data
Substantial equivalence of the AVVIGO™ + Multi-Modality Guidance System is determined through non-clinical performance evaluation including hardware, software, electrical safety, packaqing verification and validation activities.
Non-clinical performance verification was performed on the complete AVVIGO™+ Multi-Modality Guidance System, including where applicable compatible equipment, according to recognized performance and safety standards including:
- ANSI AAMI ES 60601-1:2005/(R)2012 and A1:2012, C1:2009/(R)2012 and ● A2:2010/(R)2012 (Consolidated Text) Medical electrical equipment - Part 1: General requirements for basic safety and essential performance (IEC 60601-1:2005, MOD) FDA Recognition Number 19-4
- ANSI AAMI IEC 60601-1-2:2014 [Including AMD 1:2021] Medical electrical equipment -. Part 1-2: General requirements for basic safety and essential performance - Collateral Standard: Electromagnetic disturbances - Requirements and tests [Including Amendment 1 (2021)] FDA Recognition Number 19-36
- IEC 60601-2-34 Edition 3.0 2011-05 Medical electrical equipment Part 2-34: Particular . requirements for the basic safety. including essential performance. of invasive blood pressure monitoring equipment FDA Recognition Number 3-115
- IEC 60601-2-37 Edition 2.1 2015 Medical electrical equipment Part 2-37: Particular ● requirements for the basic safety and essential performance of ultrasonic medical diagnostic and monitoring equipment FDA Recognition Number 12-293
- IEC 62304 Medical Device Software Software Lifecycle Processes, (edition 1.1 2015-. 06) FDA recognition: 13-79
- . AAMI TIR69:2017/(R2020) Technical Information Report Risk management of radiofrequency wireless coexistence for medical devices and systems. FDA Recognition Number 19-22
To support a determination of substantial equivalence, non-clinical performance verification and validation was conducted in accordance with the following FDA guidance documents:
- Radio Frequency Wireless Technology in Medical Devices – Guidance for Industry and FDA Staff published August 14, 2013
- Content of Premarket Submissions for Management of Cybersecurity in Medical Devices Guidance for Industry and Food and Drug Administration Staff published October 2, 2014
- Electromagnetic Compatibility (EMC) of Medical Devices Guidance for Industry and Food . and Drug Administration Staff June 6, 2022
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### Clinical Performance Data
Not applicable; determination of substantial equivalence is not based on clinical performance data. Substantial equivalence is based on an assessment of non-clinical performance data.
#### Conclusion
Based on a comparison of intended use, operating principles, and underlying fundamental design technology, including non-clinical performance verification and validation, the AVVIGO™+ Multi-Modality Guidance System is substantially equivalent to the predicate device, AVVIGO™ Guidance System II Multi-Modality Guidance System. A comparison of the modified device and predicate, including non-clinical performance verification tests performed, support a determination of substantial equivalence and raise no new issues of safety and effectiveness.
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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.
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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).
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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.
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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.
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Reading rule for every project: how many summaries do you read in full?
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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.
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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.
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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.
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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.