K211535 · Gynesonics, Inc. · KNF · Jun 17, 2021 · Obstetrics/Gynecology
Device Facts
Record ID
K211535
Device Name
Sonata Transcervical Fibroid Ablation System 2.2
Applicant
Gynesonics, Inc.
Product Code
KNF · Obstetrics/Gynecology
Decision Date
Jun 17, 2021
Decision
SESE
Submission Type
Special
Regulation
21 CFR 884.4160
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Sonata® Transcervical Fibroid Ablation System 2.2 is intended for diagnostic intrauterine imaging and transcervical treatment of symptomatic uterine fibroids, including those associated with heavy menstrual bleeding.
Device Story
Sonata System 2.2 provides transcervical, uterine-sparing radiofrequency (RF) ablation of uterine fibroids without incisions or uterine distension. System components include RF generator, SMART tablet, intrauterine ultrasound (IUUS) probe, RFA handpiece, and dispersive electrodes. Physician uses IUUS probe for real-time intrauterine imaging to localize fibroids and guide RFA handpiece needle electrode placement. SMART Guide software provides graphical overlay on live ultrasound for treatment planning, targeting, and ablation monitoring (Ablation Zone and Thermal Safety Border). RF energy delivery causes thermal fixation and coagulative necrosis of fibroid tissue. System software automatically terminates RF delivery upon detection of specific hazardous events. Used in clinical settings by physicians. Benefits include minimally invasive treatment of symptomatic fibroids.
Clinical Evidence
No new clinical data was required for this submission. Relies on clinical trial data from IDE G140114 (NCT02228174), a single-arm cohort study (n=147) used for the predicate device. Bench testing confirmed ablation output, RF safety features, and software performance.
Technological Characteristics
System integrates RF ablation and B-mode ultrasound. Materials: glass fiber filled polyetherimide, glass reinforced vinyl ester, fluorocarbon rubber, silicone, Nitinol, stainless steel, hydrogel. Connectivity: internal data transfer via FireWire. Software: Sonata System Software v2.1.0. Sterilization: validated for STERIS V-PRO hydrogen peroxide. Standards: ANSI/AAMI ES60601-1, IEC 60601-1-2, IEC 60601-1-6, IEC 60601-1-8, IEC 60601-2-37, IEC 62304, ISO 10993 series.
Indications for Use
Indicated for diagnostic intrauterine imaging and transcervical treatment of symptomatic uterine fibroids, including those associated with heavy menstrual bleeding, in adult female patients.
Regulatory Classification
Identification
A unipolar endoscopic coagulator-cutter is a device designed to destroy tissue with high temperatures by directing a high frequency electrical current through the tissue between an energized probe and a grounding plate. It is used in female sterilization and in other operative procedures under endoscopic observation. This generic type of device may include the following accessories: an electrical generator, probes and electrical cables, and a patient grounding plate. This generic type of device does not include devices used to perform female sterilization under hysteroscopic observation.
Predicate Devices
Sonata Sonography-Guided Transcervical Fibroid Ablation System 2.1 (K193516)
{0}------------------------------------------------
Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). On the left is the seal of the Department of Health & Human Services. To the right of that is the FDA logo in blue, with the words "U.S. FOOD & DRUG" stacked on top of the word "ADMINISTRATION".
June 17, 2021
Gynesonics, Inc. Christine Ehmann Director of Regulatory Affairs 600 Chesapeake Drive Redwood City, California 94063
K211535 Re:
Trade/Device Name: Sonata Transcervical Fibroid Ablation System 2.2 Regulation Number: 21 CFR 884.4160 Regulation Name: Unipolar Endoscopic Coagulator-Cutter and Accessories Regulatory Class: II Product Code: KNF Dated: May 15, 2021 Received: May 18, 2021
#### Dear Christine Ehmann:
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
{1}------------------------------------------------
801 and Part 809); 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,
Jason R. Roberts, Ph.D. Assistant Director DHT3B: Division of Reproductive Gynecology and Urology Devices OHT3: Office of GastroRenal, ObGyn, General Hospital and Urology Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
{2}------------------------------------------------
#### Indications for Use
510(k) Number (if known) K211535
#### Device Name
Sonata® Transcervical Fibroid Ablation System 2.2
Indications for Use (Describe)
The Sonata® Transcervical Fibroid Ablation System 2.2 is intended for diagnostic intrauterine imaging and transcervical treatment of symptomatic uterine fibroids, including those associated with heavy menstrual bleeding.
| Comments of the comments of the comments of the comments of the comments of the comments of the comments of the comments of the comments of the comments of the comments of th | |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--|
| Type of Use (Select one or both, as applicable) | |
> Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
#### CONTINUE ON A SEPARATE PAGE IF NEEDED.
This section applies only to requirements of the Paperwork Reduction Act of 1995.
#### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff(@fda.hhs.gov
"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."
{3}------------------------------------------------
# gyn
K211535
Page 1 / 13
# 510(k) Summary
| Sponsor: | Gynesonics, Inc. |
|-----------------|------------------------------|
| | 600 Chesapeake Drive |
| | Redwood City, CA 94063 |
| Contact Person: | Christine Ehmann |
| | Director, Regulatory Affairs |
| | cehmann@gynesonics.com |
| | (585) 315-6973 |
| Date Prepared: | May 15, 2021 |
## Device Information
| Proprietary Name: | Sonata® Transcervical Fibroid Ablation System 2.2 |
|-----------------------|------------------------------------------------------------------------------------------------------------------------------------------------------|
| Common Name: | Sonography-Guided Transcervical Fibroid Ablation System |
| Class: | Class II |
| Regulation: | 21 CFR 884.4160<br>Unipolar endoscopic coagulator-cutter and accessories |
| Product Code: | KNF Coagulator-Cutter, Endoscopic, Unipolar (And Accessories)<br>ITX Transducer, Ultrasonic, Diagnostic<br>IYO Ultrasonic pulsed echo imaging system |
| Classification Panel: | 85 - Obstetrical & Gynecological |
## Indications for Use
The Sonata® Transcervical Fibroid Ablation System 2.2 is intended for diagnostic intrauterine imaging and transcervical treatment of symptomatic uterine fibroids, including those associated with heavy menstrual bleeding.
{4}------------------------------------------------
## Predicate Devices
The predicate device is listed in Table 1. The predicate device is the Sonata Sonography-Guided Transcervical Fibroid Ablation System 2.1.
The predicate device has not been the subject of any design-related recalls.
Table 1 Table of Predicate and Reference Device
| 510(k) | Product | 510(k) Holder | Clearance Date |
|---------|-----------------------------------------------------------------------|---------------|----------------|
| K193516 | Sonata Sonography-Guided Transcervical<br>Fibroid Ablation System 2.1 | Gynesonics | May 4, 2020 |
## Device Description:
The Sonata System 2.2 (Figure 1) provides radiofrequency (RF) ablation of uterine fibroids using a transcervical approach that is uterine sparing without incisions or material uterine distension. The system enables a clinician to deliver radiofrequency energy to fibroid tissue resulting in thermal fixation and coagulative necrosis of the tissue.
Image /page/4/Figure/9 description: The image shows the text "Figure 1 Sonata System 2.2". The text is in bold font and is black. The text is likely a figure label or title.
Image /page/4/Figure/10 description: The image shows the components of a medical device. On the left is a system cart with a SMART tablet and RF generator. On the right are the IUUS probe, RFA handpiece, RFA handpiece cable, and two dispersive electrodes. The IUUS probe and RFA handpiece cable are labeled as reusable, while the RFA handpiece and dispersive electrodes are labeled as single use.
The system combines two technologies - ultrasound for visualization, and radiofrequency energy for ablative therapy - in a single integrated handpiece.
{5}------------------------------------------------
#### Figure 2 Intrauterine Ultrasound (IUUS) Probe being connected to the Radiofrequency Ablation (RFA) Handpiece to form a single Treatment Device
Image /page/5/Picture/3 description: The image shows two medical instruments being held by gloved hands. The instrument on top is labeled "IUUS Probe" and the instrument on the bottom is labeled "RFA Handpiece". The image also shows a close up of the two instruments being held together.
The Sonata System is comprised of medical equipment (Figure 1), software, and various single-use and reusable instruments. Sonata System devices and accessories are summarized in Table 2. The devices that are changed or new with this submission are shown in bold purple.
| Catalog<br>Number | Product Description |
|------------------------|------------------------------------------------------------------------|
| Durable Equipment | |
| SONATA2-110 | Sonata Transcervical Fibroid Ablation System, consisting of: |
| RFG2-110 | Sonata Radiofrequency Generator |
| USCON-<br>2200 | Sonata SMART Tablet |
| ACCY-002 | Sonata System Cart |
| External<br>components | Footswitch, mouse, cables |
| System Software | |
| SW-002 | Sonata System Software v2.1.0 |
| Reusable Devices | |
| IUSP-002 | Sonata Intrauterine Ultrasound (IUUS) Probe (Non-Sterile) |
| IUSP-002S | Sonata Intrauterine Ultrasound (IUUS) Probe (Sterile) |
| ACCY-008 | Sonata RFA Handpiece Cable, Reusable |
| Single-Use Devices | |
| RFA-002 | Sonata Radiofrequency Ablation Handpiece (Sterile) |
| DE-001 | Sonata Dispersive Electrode (Non-sterile) |
| Accessories | |
| SHPR-001 | Sonata Intrauterine Ultrasound Probe Sterile Shipper Kit |
| RTN-001 | Sonata Intrauterine Ultrasound Probe Return Kit |
| OM-1000-GS | Sonata IUUS Probe Reprocessing Tray (Manufacturer: Summit Medical LLC) |
| 8EC4A | Endocavity Ultrasound Transducer (Manufacturer: Terason®) |
Table 2 Sonata System 2.2 Devices and Accessories
{6}------------------------------------------------
A single-use Radiofrequency Ablation (RFA) Handpiece attaches to a reusable Intrauterine Ultrasound (IUUS) Probe as shown in Figure 2 to provide sonography-guided RF ablation. Once connected, the combination is referred to as the "Treatment Device". The RFA Handpiece connects to the Sonata RF Generator and contains the Needle Electrodes that deliver radiofrequency energy to the target tissue. The IUUS Probe connects to the SMART Tablet and provides diagnostic ultrasound imaging and guidance. Ultrasound guidance is used to localize the fibroids from within the uterine cavity, guide placement of the RFA Handpiece Needle Electrodes into a target fibroid and ensure safety with respect to the serosa. When the Needle Electrodes are anchored within tissue, the physician is able to pivot the IUUS Probe transducer around the Needle Electrodes in order to confirm safety of the uterine serosa through multiple ultrasound planes.
The Sonata System allows for treatment planning through the use of a graphical interface and automated control of RF energy delivery.
Sonata Graphical Guidance Software (GGS) includes the SMART Guide (Figure 3) and integrates treatment planning, targeting, and ablation of fibroids. The SMART Guide displays a real-time graphic overlay on the live ultrasound image for targeting and deployment of radiofrequency ablation.
Image /page/6/Figure/5 description: The image shows a diagram of the SMART Guide system. The diagram includes two images, one of an ultrasound and one of a fibroid. The ultrasound image shows the IUUS Probe Tip, Introducer Guide, Ablation Zone, and Thermal Safety Border. The fibroid image shows the Ablation Zone and Thermal Safety Border. The text in the image describes the SMART Guide system and how it is used to set margins of ablation in real time.
#### Figure 3 Sonata SMART Guide
{7}------------------------------------------------
Two main elements of the SMART Guide are the Ablation Zone and the Thermal Safety Border.
- . Ablation Zone (red inner ellipse) – a two-dimensional representation of the outer boundary of the average region of tissue ablation for the selected ablation size
- . Thermal Safety Border (green outer ellipse) - the distance at which tissue outside of the Ablation Zone is safe from the potential of thermal damage.
## Changes triggering this 510(k)
Table 3 summarizes the changes to the Sonata System 2.2 that are driving the need for a new 510(k).
| Sonata System 2.1<br>Component/Accessory | Description of Change | Reason for change | Impact of Change |
|---------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Single Use RFA Handpiece<br>Cable ACCY-007 change to<br>Reusable RFA Handpiece<br>Cable ACCY-008 | Change from single use<br>cable to reusable cable<br>with same functionality. | Eliminate unnecessary<br>electronic waste<br>associated with single<br>use cable. | New IFU specific to<br>accessory required.<br>Validation of thorough<br>cleaning and sterilization<br>instructions required. |
| Sonata System Software<br>SW-002 | Some alarms instructing<br>the user to terminate RF<br>are replaced with automatic<br>termination of RF by<br>system software upon<br>detection of events that<br>would previously have<br>triggered the alarm. Prior<br>alarm messages remain<br>but are downgraded to<br>standard messages. | Enhancement. User no<br>longer is required to<br>terminate RF for some<br>alarms triggered in<br>hazardous situations. RF<br>delivery is terminated<br>without physician<br>intervention. | Modification of an<br>existing risk control<br>measure for a<br>hazardous situation that<br>could result in significant<br>harm to improve risk<br>mitigation. Software<br>verification and<br>validation required. |
| Addition of Established<br>Category B Sterilization<br>Option for Reusable Sonata<br>Intrauterine Ultrasound<br>(IUUS) Probe IUSP-002 | Addition of validated<br>instructions for sterilization<br>of the IUUS Probe by<br>STERIS V-PRO family of<br>hydrogen peroxide<br>sterilizers. | Expand options for<br>sterilization of reusable<br>device. | No impact to device.<br>Sterilization validation<br>and verification of device<br>compatibility required. |
#### Table 3 Summary of Device Changes Triggering New 510(k)
# Comparison to Predicate Device
Table 4 contains a detailed comparison of the Sonata System 2.2 to its predicate, Sonata System 2.1. The Sonata Transcervical Fibroid Ablation System 2.2 employs the same fundamental scientific technology as the currently marketed predicate Sonata Sonography-Guided Transcervical Fibroid Ablation System 2.1 (K193516). None of these differences raise any new questions of safety and effectiveness.
{8}------------------------------------------------
| | Sonata System 2.2 | Sonata System 2.1 | |
|-------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Characteristics | (this submission) | (K193516) | Comparison Discussion |
| | Intended Use/Indications for Use | | |
| Intended Use | Ablation of uterine fibroids with diagnostic<br>ultrasound imaging. | Ablation of uterine fibroids with diagnostic<br>ultrasound imaging. | Same |
| Indications for<br>Use | The Sonata System is intended for diagnostic<br>intrauterine imaging and transcervical<br>treatment of symptomatic uterine fibroids,<br>including those associated with heavy<br>menstrual bleeding. | The Sonata System is intended for<br>diagnostic intrauterine imaging and<br>transcervical treatment of symptomatic<br>uterine fibroids, including those associated<br>with heavy menstrual bleeding. | Same |
| Regulation<br>Number | §884.4160 Unipolar endoscopic coagulator-<br>cutter and accessories | §884.4160 Unipolar endoscopic<br>coagulator-cutter and accessories | Same |
| Product Code | KNF<br>Coagulator-Cutter, Endoscopic, Unipolar (And<br>Accessories) | KNF<br>Coagulator-Cutter, Endoscopic, Unipolar<br>(And Accessories) | Same |
| | ITX<br>Transducer,<br>Ultrasonic, Diagnostic | ITX<br>Transducer,<br>Ultrasonic, Diagnostic | |
| | IYO<br>Ultrasonic pulsed echo imaging system | IYO<br>Ultrasonic pulsed echo imaging system | |
| System Functional/ Operational Features | | | |
| Principal Mode<br>of Operation | Radiofrequency ablation of fibroid tissue<br>resulting in thermal fixation and coagulative<br>necrosis. | Radiofrequency ablation of fibroid tissue<br>resulting in thermal fixation and coagulative<br>necrosis. | Same |
| | B Mode ultrasound imaging | B Mode ultrasound imaging | Same |
| Primary user<br>interface | Graphical user interface | Graphical user interface | Same |
| Characteristics | Sonata System 2.2<br>(this submission) | Sonata System 2.1<br>(K193516) | Comparison Discussion |
| Treatment<br>Planning | Integrated SMART Guide in software | Integrated SMART Guide in software | Same |
| Treatment<br>Approach | In situ delivery and control of RF energy<br>through deployable array needle electrodes<br>with impedance and temperature feedback<br>under visual control. | In situ delivery and control of RF energy<br>through deployable array needle electrodes<br>with impedance and temperature feedback<br>under visual control. | Same |
| Treatment<br>Guidance | Must be used under ultrasound guidance that<br>is integrated into the system. The Ultrasound<br>Console (SMART Tablet) with IUUS Probe is<br>indicated for intrauterine imaging and<br>guidance for placement of the Needle<br>Electrodes. | Must be used under ultrasound guidance<br>that is integrated into the system. The<br>Ultrasound Console (SMART Tablet) with<br>IUUS Probe is indicated for intrauterine<br>imaging and guidance for placement of the<br>Needle Electrodes. | Same |
| Route of<br>Access | Transcervical | Transcervical | Same |
| System Components | | | |
| RF Generator | An RF Generator provides RF energy to the<br>RFA Handpiece through the handpiece cable | An RF Generator provides RF energy to<br>the RFA Handpiece through the handpiece<br>cable | Same |
| Treatment<br>Device | Single-use RFA handpiece with trocar-<br>pointed shaft and 7 deployable needle<br>electrodes, with reusable Cable. Combines<br>with the reusable Intrauterine Ultrasound<br>Probe to form the "Treatment Device". | Single-use RFA handpiece with trocar-<br>pointed shaft and 7 deployable needle<br>electrodes, with single-use Cable.<br>Combines with the reusable Intrauterine<br>Ultrasound Probe to form the "Treatment<br>Device". | Similar<br>The Sonata 2.1 RFA<br>Handpiece Cable is single-use<br>and provided sterile.<br>The Sonata 2.2 RFA<br>Handpiece Cable is reusable<br>and provided non-sterile.<br>Labeling includes validated<br>instructions for cleaning and<br>sterilization prior to use and<br>between uses |
| | Sonata System 2.2<br>(this submission) | Sonata System 2.1<br>(K193516) | Comparison Discussion |
| Characteristics | | | |
| Dispersive<br>Electrodes | Dispersive Electrodes, quantity 2, with cables; provides return path for the RF energy delivered by the Handpiece | Dispersive Electrodes, quantity 2, with cables; provides return path for the RF energy delivered by the Handpiece | Same |
| Ultrasound<br>Console | Incorporates the Terason uSmart3200T Ultrasound System (K150533) with addition of Sonata Graphical Guidance software. The uSmart3200T is a tablet with11.6" LED backlit display, lithium-polymer battery. Uses a medical-grade power supply. Data transferred internally from the ultrasound engine to the laptop computer over a FireWire (aka IEEE 1394) | Incorporates the Terason uSmart3200T Ultrasound System (K150533) with addition of Sonata Graphical Guidance software. The uSmart3200T is a tablet with11.6" LED backlit display, lithium-polymer battery. Uses a medical-grade power supply. Data transferred internally from the ultrasound engine to the laptop computer over a FireWire (aka IEEE 1394) | Same |
| Ultrasound<br>Transducer | Gynesonics Sonata Intrauterine Ultrasound (IUUS) Probe | Gynesonics Sonata Intrauterine Ultrasound (IUUS) Probe | Same |
| Ultrasound<br>Transducer | Claimed compatibility with commercially available Terason 8EC4A transducer | Claimed compatibility with commercially available Terason 8EC4A transducer | Same |
| Power cord | Power cord - A medical grade power cord that provides AC power to the power strip on the System Cart. The power strip in turn powers the RF Generator and the Ultrasound Console. | Power cord - A medical grade power cord that provides AC power to the power strip on the System Cart. The power strip in turn powers the RF Generator and the Ultrasound Console. | Same |
| Footswitch | Pneumatic footswitch with PVC tubing used to activate and terminate delivery of RF energy. | Pneumatic footswitch with PVC tubing used to activate and terminate delivery of RF energy. | Same |
| Optical Mouse | Optical Mouse | Optical Mouse | Same |
| System Cart | Cart, accommodates tablet | Cart, accommodates tablet | Same |
| Materials | | | |
| Materials –<br>Patient Contact<br>– IUUS Probe | Glass fiber filled polyetherimide, glass reinforced vinyl ester, fluorocarbon rubber, UV adhesive, Silicone | Glass fiber filled polyetherimide, glass reinforced vinyl ester, fluorocarbon rubber, UV adhesive, Silicone | Same |
| | Sonata System 2.2 | Sonata System 2.1 | |
| Characteristics | (this submission) | (K193516) | Comparison Discussion |
| Patient Contact | Medical grade metal alloys and plastic | Medical grade metal alloys and plastic | Same |
| Materials - | polymers (i.e. Nitinol®, surgical grade | polymers (i.e. Nitinol®, surgical grade | |
| active electrode | stainless steel) | stainless steel) | |
| Patient Contact | Acrylate-polymer based hydrogel, polyester | Acrylate-polymer based hydrogel, polyester | Same |
| Materials | fabric with poly film and medical grade acrylic | fabric with poly film and medical grade | |
| - dispersive | adhesive | acrylic adhesive | |
| electrode | | | |
| Biocompatibility | Is biocompatible with intended use in | Is biocompatible with intended use in | Same with use of current |
| | compliance with<br>• ISO 10993-1 5th Ed. 2018-08 | compliance with<br>• ISO 10993-1 4th Ed. 2009-10-15 and | versions |
| | • ISO 10993-5 3rd ed. 2009-06-01 | ISO 10993-1 5th Ed. 2018-08 | |
| | • ISO 10993-10 3rd ed. 2010-08-01 | • ISO 10993-5 3rd ed. 2009-06-01 | |
| | • ISO 10993-11 3rd ed. 2017-09 | • ISO 10993-10 3rd ed. 2010-08-01 | |
| | | • ISO 10993-11 3rd ed. 2017-09 | |
| Safety and Performance | | | |
| Electrical Safety<br>& EMC | ANSI/AAMI ES60601-1:2005/(R)2012 And A1:2012,<br>C1:2009 / (R)2012 And A2:2010/(R)2012 | ANSI/AAMI ES60601-1:2005/(R)2012 And A1:2012,<br>C1:2009 / (R)2012 And A2:2010/(R)2012 | Same…
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
Learn the FDA Browser
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.