The 1.5T T/R Quad Extremity Coil is intended to be used in conjunction with a SIGNA Prime Magnetic Resonance Scanner to produce diagnostic images of the lower extremities that can be interpreted by a trained physician. The 1.5T 8CH T/R Knee Coil is intended to be used in conjunction with a SIGNA Prime Magnetic Resonance Scanner to produce diagnostic images of the knee that can be interpreted by a trained physician.
Device Story
The 1.5T T/R Quad Extremity Coil and 1.5T 8CH T/R Knee Coil are RF coils for use with SIGNA Prime MRI scanners. The coils function as transmit/receive (T/R) devices; they resonate via the MRI system's RF power source to excite hydrogen nuclei (protons) in the patient's anatomy and detect the resulting magnetic resonance signals. The coils feature a base plate and a latched top section to secure the patient's limb, reducing motion artifacts. The 1.5T T/R Quad Extremity Coil operates in QuadKnee, QuadFoot, and QuadAnkle modes. The 1.5T 8CH T/R Knee Coil uses an 8-element phased array for signal detection. These devices are operated by MRI technicians or radiologists in clinical settings. The output consists of raw MR signals processed by the scanner into diagnostic images, which are interpreted by a physician to aid in clinical decision-making and diagnosis of musculoskeletal conditions.
Clinical Evidence
No formal clinical trial was conducted. Clinical evidence consists of sample clinical images provided in DICOM format to demonstrate diagnostic quality. A US Board Certified radiologist reviewed the images and provided a statement confirming the device's ability to generate diagnostic-quality images. No adverse events were reported.
Technological Characteristics
Materials: Hylex P1010FR, Lexan 925 polycarbonate, polyether foam with vinyl-based coating. Sensing: Birdcage quadrature coil (T/R) and 8-element phased array. Energy: RF power from MRI system. Connectivity: P-Port connector for SIGNA Prime. Standards: ANSI/AAMI ES 60601-1, IEC 60601-1-2, IEC 60601-2-33, NEMA MS-1/3/8/9/14, ISO 10993-1, ISO 17664.
Indications for Use
Indicated for patients scheduled for MRI exams of the knee, lower limb, and extremities. Used across all stages and degrees of illness. Not for use on patients where MRI is contraindicated.
Regulatory Classification
Identification
A magnetic resonance diagnostic device is intended for general diagnostic use to present images which reflect the spatial distribution and/or magnetic resonance spectra which reflect frequency and distribution of nuclei exhibiting nuclear magnetic resonance. Other physical parameters derived from the images and/or spectra may also be produced. The device includes hydrogen-1 (proton) imaging, sodium-23 imaging, hydrogen-1 spectroscopy, phosphorus-31 spectroscopy, and chemical shift imaging (preserving simultaneous frequency and spatial information).
Special Controls
*Classification.* Class II (special controls). A magnetic resonance imaging disposable kit intended for use with a magnetic resonance diagnostic device only is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 892.9.
{0}------------------------------------------------
Image /page/0/Picture/0 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health and Human Services logo. To the right of that is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.
August 23, 2022
Invivo Corporation (Business Trade Name: Philips) % Prithul Bom Most Responsible Person Regulatory Technology Services, LLC 1000 Westgate Drive, Suite 510k SAINT PAUL MN 55114
Re: K222257
Trade/Device Name: 1.5 T/R Quad Extremity Coil, 1.5T 8CH T/R Knee Coil Regulation Number: 21 CFR 892.1000 Regulation Name: Magnetic resonance diagnostic device Regulatory Class: Class II Product Code: MOS Dated: July 26, 2022 Received: July 27, 2022
Dear Prithul Bom:
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
{1}------------------------------------------------
requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 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 (OS) 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 mediation-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,
Daniel M. Krainak, Ph.D. Assistant Director Magnetic Resonance and Nuclear Medicine Team DHT 8C: Division of Radiological Imaging and Radiation Therapy Devices OHT8: Office of Radiological Health Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
{2}------------------------------------------------
# Indications for Use
510(k) Number (if known) K222257
Device Name
1.5T T/R Quad Extremity Coil and 1.5T 8CH T/R Knee Coil
Indications for Use (Describe)
The 1.5T T/R Quad Extremity Coil is intended to be used in conjunction with a SIGNA Prime Magnetic Resonance Scanner to produce diagnostic images of the lower extremities that can be interpreted by a trained physician.
The 1.5T 8CH T/R Knee Coil is intended to be used in conjunction with a SIGNA Prime Magnetic Resonance Scanner to produce diagnostic images of the knee that can be interpreted by a trained physician.
| Type of Use (Select one or both, as applicable) | |
|----------------------------------------------------------------------------------|---------------------------------------------------------------------------------|
| <div> <span> Prescription Use (Part 21 CFR 801 Subpart D) </span> </div> | <div> <span> Over-The-Counter Use (21 CFR 801 Subpart C) </span> </div> |
### 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}------------------------------------------------
Image /page/3/Picture/0 description: The image shows the word "PHILIPS" in large, bold, blue letters. The font is sans-serif and the letters are evenly spaced. The background is white, which makes the blue letters stand out. The image is simple and clean, with a focus on the brand name.
## 510(k) Summary
| | prepared in accordance with 21 CFR §807.92. |
|-------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 510(k) Owner: | Invivo Corporation |
| | (Business Trade Name: Philips) |
| | 3545 SW 47th Ave |
| | Gainesville, FL 32608 |
| | Establishment Registration #1056069 |
| Contact: | Jennifer Bonacci |
| | Regulatory Affairs Specialist |
| | Phone: +1-352-384-8629 |
| | E-mail: jennifer.bonacci@philips.com |
| Preparation Date: | July 25, 2022 |
| Name of Device(s): | 1.5T T/R Quad Extremity Coil |
| | 1.5T 8CH T/R Knee Coil |
| Device Classification: | Classification Name - Coil, Magnetic Resonance, Specialty |
| | Classification Regulation - 21 CFR 892.1000 |
| | Classification Panel - Radiology |
| | Device Class - Class II |
| | Product Code - MOS |
| Predicate Device: | Quadrature Lower Extremity Coil, K934396, cleared November 24, 1993 |
| Predicate Device<br>Classification: | Classification Name - Coil, Magnetic Resonance, Specialty |
| | Classification Regulation - 21 CFR 892.1000 |
| | Classification Panel - Radiology |
| | Device Class - Class II |
| | Product Code - MOS |
| Predicate Device: | HRK-63-8 Knee Array Coil, K032633, cleared September 25, 2003 |
| Predicate Device<br>Classification: | Classification Name - Coil, Magnetic Resonance, Specialty |
| | Classification Regulation - 21 CFR 892.1000 |
| | Classification Panel - Radiology |
| | Device Class - Class II |
| | Product Code - MOS |
| Device Description: | The 1.5T T/R Quad Extremity Coil is quadrature Transmit and Receive<br>coils. At 1.5T the coil can be used in 3 different operational modes:<br>QuadKnee, QuadFoot and QuadAnkle. The coil is designed to image the<br>Knee, Foot and Ankle, but can also be used for other parts of the lower<br>extremities. |
{4}------------------------------------------------
The base of the coil is attached to a base plate and can be moved to scan either the Left or Right extremity. The coil is moved into position (Left to Right) and locked into place, the patient is then positioned in the base, the top section of the coil is placed over the patient and the latched closed. The fixed position of the coil and helps prevent the patient form moving, reducing artifact.
This coil is used independently and can't be combined with any other coils.
The 1.5T T/R Quad Extremity Coil is compatible with SIGNA Prime MRI Systems with P-Port Connector. It consists of a birdcage quadrature coil. During transmit phase, the coil is resonated by the RF power source of MR system, to excite hydrogen nuclei (protons) in the anatomy. The quadrature coil detects the magnetic resonance signals generated by hydrogen nuclei (protons) in the knee during the receive phase.
The coil is tuned to transmit and receive RF frequency corresponding to the proton precession in a 1.5 tesla magnetic field, which is governed by the Larmor equation.
The 1.5T 8CH T/R Knee Coil is an 8 element phase array coil with a T/R quadrature birdcage shell, designed to image the knee. The base of the coil is attached to a base plate and can be moved to scan either the Left or Right Knee. The patient is positioned in the base, the top section of the coil is placed over the patient and the latched closed, which locks the position of the coil and helps prevent the patient form moving, reducing artifact.
The transmit shell consist of a twist birdcage quadrature coil, resonated by the RF power source of MR system, to excite hydrogen nuclei (protons) in the anatomy.
The coil receivers consist of 8 phased array elements that detect the magnetic resonance signals generated by hydrogen nuclei (protons) in the knee while blocking the high-frequency B1 field applied by the coil transmit shell at specified timings.
The coil is tuned to transmit and receive RF frequency corresponding to the proton precession in a 1.5 tesla magnetic field, which is governed by the Larmor equation.
This coil is used independently and cannot be combined with any other coils.
The 1.5T T/R Quad Extremity Coil and 1.5T 8CH T/R Knee Coil are compatible with SIGNA Prime MRI systems with a P-Port connector.
Indications for Use: The 1.5T T/R Quad Extremity Coil is intended to be used in conjunction with a SIGNA Prime Magnetic Resonance Scanner to produce diagnostic
{5}------------------------------------------------
images of the lower extremities that can be interpreted by a trained physician.
The 1.5T 8CH T/R Knee Coil is intended to be used in conjunction with a SIGNA Prime Magnetic Resonance Scanner to produce diagnostic images of the knee that can be interpreted by a trained physician.
#### Fundamental Scientific Technology:
The subject 1.5T T/R Quad Extremity Coil and 1.5T 8CH T/R Knee Coil are similar in design, material, chemical composition and energy source to the legally marketed and predicate devices (Quadrature Lower Extremity Coil: K934396, November 24, 1993; and HRK-63-8 Knee Array Coil: K032633, September 25, 2003). At a high level, the 1.5T T/R Quad Extremity Coil and 1.5T 8CH T/R Knee Coil and the predicate devices are based on the following same characteristics:
- Clinical
- Technical
- . Biological
The detailed comparisons are:
| Item | Quadrature Lower<br>Extremity Coil<br>(Predicate Device,<br>K934396) | 1.5T T/R Quad<br>Extremity Coil<br>(Subject Device) |
|--------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Cable assembly /<br>system connector | Image: Cable assembly / system connector | Image: 1.5T T/R Quad Extremity Coil |
| Intended Use<br>population | Adult | The target population<br>for the devices are any<br>patient scheduled for<br>MRI exam of the knee,<br>lower limb and<br>extremities. |
| Clinical application site | Musculoskeletal<br>structures, soft tissue<br>and vascular structure<br>of the lower extremities | Knee / Foot / Lower<br>Extremity |
| Type of device contact<br>to body | Body surface | Body surface |
| Indications for Use | Magnetic resonance<br>imaging (MRI) and<br>magnetic resonance<br>angiography (MRA) of<br>the musculoskeletal<br>structures, soft tissue<br>and vascular structures<br>of the lower<br>extremities. | The 1.5T T/R Quad<br>Extremity Coil is<br>intended to be used in<br>conjunction with a GE<br>1.5T Magnetic<br>Resonance Scanner to<br>produce diagnostic<br>images of the lower<br>extremities that can be<br>interpreted by a trained<br>physician. |
| Illness stage and degree<br>for use | Across all stages and<br>degree of illness | Across all stages and<br>degree of illness |
| Operating Environment | Hospital MRIs across all<br>departments; imaging | Hospital MRIs across all<br>departments; imaging |
{6}------------------------------------------------
| | centers; specialty<br>offices; primary and<br>secondary care centers | centers, specialty<br>offices, primary and<br>secondary care centers |
|---------------------------------------|---------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------|
| Frequency range | 63.86 MHz | 63.86 MHz |
| Coil Design | Quadrature transmit-<br>receive coil | Quadrature transmit-<br>receive coil |
| Magnetic Field<br>Orientation (BO) | Horizontal | Horizontal |
| Decoupling method | System body coil does<br>not transmit when this<br>device is connected, no<br>decoupling necessary | System body coil does<br>not transmit when this<br>device is connected, no<br>decoupling necessary |
| Number of Channels /<br>Preamplifiers | Quadrature combined<br>single channel | Quadrature combined<br>single channel (QLE) |
| Housing Material | Hylex P1010FR and<br>Lexan 925<br>polycarbonate | Hylex P1010FR and<br>Lexan 925<br>polycarbonate |
| Base Pad | Polyether foam with<br>vinyl-based spray-on<br>coating | Polyether foam with<br>vinyl-based spray-on<br>coating |
| System Connector /<br>Compatibility | GE legacy "A-Port"<br>connector | GE "P-Port connector |
| Patient Contact<br>materials | - Hylex P1010FR and<br>Lexan 925<br>polycarbonate<br>- Polyether foam with<br>vinyl-based spray-on<br>coating | - Hylex P1010FR and<br>Lexan 925<br>polycarbonate<br>- Polyether foam with<br>vinyl-based spray-on<br>coating |
| Components | No incorporation of any<br>medicinal substances. | No incorporation of any<br>medicinal substances. |
| Item | HRK-63-8 Knee Array<br>Coil<br>(Predicate Device,<br>K032633) | 1.5T 8CH T/R Knee Coil<br>(Subject Device) |
|--------------------------------------|---------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Cable assembly /<br>system connector | Image: Cable assembly | Image: Cable assembly |
| Intended Use<br>population | Adult | The target population<br>for the devices are any<br>patient scheduled for<br>MRI exam of the knee,<br>lower limb and<br>extremities. |
| Clinical application site | Knee | Knee |
| Type of device contact<br>to body | Body surface | Body surface |
| Indications for Use | To be used in<br>conjunction with a<br>Magnetic Resonance<br>Scanner to produce<br>diagnostic images of the<br>knee that can be | The 1.5T 8CH T/R Knee<br>Coil is intended to be<br>used in conjunction<br>with a GE 1.5T Magnetic<br>Resonance Scanner to<br>produce diagnostic<br>images of the knee that |
{7}------------------------------------------------
| | interpreted by a trained | can be interpreted by a |
|--------------------------|--------------------------|---------------------------|
| | physician. | trained physician. |
| Illness stage and degree | Across all stages and | Across all stages and |
| for use | degree of illness | degree of illness |
| Operating environment | Hospital MRIs across all | Hospital MRI s across all |
| | departments; imaging | departments; imaging |
| | centers; specialty | centers, specialty |
| | offices, primary and | offices, primary and |
| | secondary care centers | secondary care centers |
| Frequency range | 63.86 MHz | 63.86 MHz |
| Coil Design | Volume phased-array, | Volume phased-array, |
| | transmit-receive coil | transmit-receive coil |
| Magnetic Field | Horizontal | Horizontal |
| Orientation (B0) | | |
| Decoupling method | System body coil does | System body coil does |
| | not transmit when this | not transmit when this |
| | device is connected, no | device is connected, no |
| | decoupling necessary | decoupling necessary |
| Number of Channels / | 8 channels / | 8 channels / |
| Preamplifiers | preamplifiers | preamplifiers |
| Housing Material | Lexan 925 | Lexan 925 |
| | polycarbonate | polycarbonate |
| Base Pad | Polyether foam with | Polyether foam with |
| | vinyl-based spray-on | vinyl-based spray-on |
| | coating | coating |
| System Connector / | GE legacy "A-Port" | GE "P-Port" connector |
| Compatibility | connector | |
| Patient contact | - Lexan 925 | - Lexan 925 |
| materials | polycarbonate | polycarbonate |
| | - Polyether foam with | - Polyether foam with |
| | vinyl-based spray-on | vinyl-based spray-on |
| | coating | coating |
| Components | No incorporation of any | No incorporation of any |
| | medicinal substances. | medicinal substances. |
Based on the information provided above, the difference between 1.5T T/R Quad Extremity Coil and 1.5T 8CH T/R Knee Coil, and predicate devices, is the connector design, as the predicate device connects to legacy GE Signa 1.5T system. 1.5T T/R Quad Extremity Coil and 1.5T 8CH T/R Knee Coil connects to SIGNA Prime (K211980). The subject devices are considered substantially equivalent to the primary currently marketed and predicate device (Quadrature Lower Extremity Coil: K934396, November 24, 1993; and HRK-63-8 Knee Array Coil: K032633, September 25, 2003) in terms of fundamental scientific technology.
Summary of Non-The 1.5T T/R Quad Extremity Coil and 1.5T 8CH T/R Knee Coil has Clinical and Clinical undergone the following testing in accordance with FDA-recognized Performance Data: consensus standards and as recommended in FDA guidance documents Submission of Premarket Notifications for Magnetic Resonance Diagnostic Devices, issued November 18, 2016.
Performance Testing - Non-Clinical:
- ANSI/AAMI ES 60601-1 and NEMA MS 14 Surface heating
- IEC 60601-1-2 EMC Immunity, electrostatic discharge testing ●
{8}------------------------------------------------
| | IEC 60601-2-33, AAMI/ANSI ES 60601-1 General<br>● |
|-------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | electrical/mechanical safety |
| | ●<br>NEMA MS-1, NEMA MS-3, NEMA MS-9 and IEC 62464-1 Image |
| | Signal to Noise and Image Uniformity characterization |
| | IEC 60601-2-33 and NEMA MS-8 Specific Absorption Rate<br>● |
| | ISO 10993-1 Biological safety evaluation<br>● |
| | ISO 17664 Cleaning and disinfection validations to support<br>● |
| | reprocessing instructions |
| | Performance Testing - Clinical: |
| | per NEMA PS 3.1 - 3.20, Sample clinical images for the target<br>● |
| | anatomical locations were provided in DICOM format to |
| | demonstrate the images produced are of sufficient quality for |
| | diagnostic use. (Section 20 of 510k Submission) |
| | There was no adverse event reported during clinical performance<br>●<br>testing. |
| | The clinical performance testing plan and report is provided with |
| | a statement from a US Board Certified radiologist that can |
| | support the ability of the device to generate diagnostic quality |
| | images. (Section 20 of 510k Submission) |
| | |
| | The performance testing demonstrated that the 1.5T T/R Quad Extremity<br>Coil and 1.5T 8CH T/R Knee Coil are safe and effective for the intended<br>use(s) and meets predefined performance criteria. |
| | |
| Substantial | The 1.5T T/R Quad Extremity Coil and 1.5T 8CH T/R Knee Coil are |
| Equivalence | substantially equivalent to the primary currently marketed and predicate |
| Conclusion: | device (Quadrature Lower Extremity Coil: K934396, November 24, 1993; |
| | and HRK- 63-8 Knee Array Coil: K032633, September 25, 2003) in terms of |
| | indications for use, design characteristics, fundamental scientific |
| | technology, materials, sterilization, shelf life, and safety and |
| | effectiveness. Additionally, substantial equivalence was demonstrated |
| | with non-clinical and clinical performance tests, which complied with the |
| | requirements specified in FDA-recognized consensus standards and |
| | guidance documents. The results of these tests demonstrate that 1.5T |
| | T/R Quad Extremity Coil and 1.5T 8CH T/R Knee Coil met the acceptance |
| | criteria and is adequate for this intended use. |
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.