K113365 · Advanced Imaging Research Dba Sree Medical Systems · MOS · Mar 29, 2012 · Radiology
Device Facts
Record ID
K113365
Device Name
INFANT ARRAY
Applicant
Advanced Imaging Research Dba Sree Medical Systems
Product Code
MOS · Radiology
Decision Date
Mar 29, 2012
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 892.1000
Device Class
Class 2
Attributes
Pediatric
Indications for Use
The Infant Array is a receive-only RF coil, used for obtaining high resolution images and spectra of the infant brain, spine, heart, torso and extremity in GE, Siemens and Philips 1.5T and 3.0T magnetic resonance imaging systems and magnetic resonance compatible incubators. Indications for use are same as that for standard MR imaging and spectroscopy.
Device Story
Infant Array is a 20-element receive-only RF coil array for infant MRI. Comprises an Infant Head Spine Array (IHSA) and an anterior Cardiac section (CAR). IHSA functions independently for brain/spine exams; CAR attaches via sliding adjustable height gantry for cardiac/torso exams. Enclosed in rigid, fire-rated, high-impact plastic housing to prevent patient exposure. Operates in clinical MRI environments; used by radiologists/technicians. Receives RF signals from infant anatomy; transforms signals into high-resolution images/spectra for GE, Siemens, and Philips 1.5T/3T systems. Facilitates scanning of low birth weight pre-term babies and newborns. Enhances diagnostic capability by providing high-resolution imaging of infant anatomy.
Clinical Evidence
Bench testing only. No clinical data provided. Performance was validated against predetermined acceptance criteria for imaging performance and safety, demonstrating substantial equivalence to predicate adult-sized arrays.
Technological Characteristics
20-element receive-only RF coil array. Materials: Polycarbonate and polyurethane plastic (fire-rated, high impact/tensile strength). Decoupling: RF chokes and fast-acting PIN-diode switching. Safety: Non-conductive housing, RF fuses to isolate elements from transmit fields. Form factor: Rigid former with sliding adjustable height gantry for cardiac section. Connectivity: Compatible with GE, Siemens, and Philips 1.5T/3T MRI systems.
Indications for Use
Indicated for imaging of the brain, spine, heart, torso, and extremities in pre-term and term newborn infants. Used in conjunction with GE, Siemens, and Philips 1.5T and 3T MRI systems, including use with MRI-compatible incubators. Images are interpreted by a trained physician for diagnostic purposes.
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.
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# K113365
MAR 2 9 2012
# Attachment B
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# 510(k) Summary
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| 1. | Manufacturer: | Advanced Imaging Research, Inc.<br>4700 Lakeside Avenue, Suite 400<br>Cleveland, OHIO 44114 | (Physical Location) |
|-----|---------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------|
| | | PO Box 603220<br>Cleveland, OHIO 44103 | (Use for Correspondence) |
| | | 1262 E 49th Street, Suite 400<br>Cleveland, OHIO 44114 | (Courier Address) |
| | | Phone: 216-426-1461 | |
| | | Fax: 216-426-1180 | |
| 2. | Registration Number: | 3004036149 | |
| 3. | Contact: | Ravi Srinivasan, President | |
| | | Phone: 216-426-1461<br>email: ravi@sreemedical.com | Fax: 216-426-1180 |
| 4. | Device Name: | Magnetic Resonance Diagnostic Device | |
| | Proprietary Name: | Infant Array | |
| 5. | Type of Submission: | Traditional | |
| 6. | Classification of Device: | 21CFR 892.1000 | |
| | Class of Device: | Class II | |
| | Product Code: | 90 MOS (Magnetic Resonance Specialty Coil) | |
| 7. | Intended Use: | The Infant Array is a receive-only RF coil, used for<br>obtaining high resolution images and spectra of the infant<br>brain, spine, heart, torso and extremity in GE, Siemens and<br>Philips 1.5T and 3.0T magnetic resonance imaging systems<br>and magnetic resonance compatible incubators. Indications<br>for use are same as that for standard MR imaging and<br>spectroscopy. | |
| 8. | Device Description: | The Infant Array is a 20-element receive-only<br>radio-frequency (RF) coil array well suited for routine and<br>parallel imaging. The Infant Array (IA) consists of an<br>Infant Head Spine Array (IHSA) and an anterior Cardiac<br>section (CAR). The IHSA can be used alone for spine and | |
| | | brain examinations or in conjunction with the anterior<br>cardiac section necessary for cardiac and torso MRI exams.<br>The anterior cardiac section cannot be used alone. This<br>anterior cardiac section is supported on a sliding adjustable<br>height gantry. Coil elements and associated circuitry are<br>enclosed in a rigid former to prevent any exposure to<br>patient or environment. The plastic materials used are fire<br>rated and have a high impact and tensile strength. The coil<br>design facilitates scanning of low birth weight pre-term<br>babies, term newborns and small infants with different<br>body sizes and maximizes comfort and ease of use. | |
| 9. | Marketed Device: | Infant Head Spine Array, Infant Array for GE, Siemens,<br>Philips 1.5T and 3.0T MRI Scanners | |
| 10. | Comparison to Predicate: | 1.5T 16 Channel GE Brain Spine Array (K052621)<br>3.0T 16 Channel GE Head Neck Spine Array (K093348) | |
.
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In general, the Infant Array is similar in use to the above-mentioned adult sized head neck spine arrays and is considered a scaled-down version that is receive-only and well suited for parallel imaging as follows:
| Intended use | Proton 1H 1D, 2D, 3D T1, T2 weighting, proton density,<br>chemical shift, diffusion weighted imaging, angiography,<br>functional MRI, chemical shift imaging, spectroscopy |
|-------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Indications for Use | The Infant Array when used in conjunction with GE,<br>Siemens and Philips 1.5T and 3T MRI systems or Infant<br>Array when used with the MRI compatible incubator and in<br>conjunction with the abovementioned MRI systems provide<br>imaging of the infant's brain, spine, heart, torso and<br>extremities. When interpreted by a trained physician, these<br>images provide information that can be useful in the<br>determination of the diagnosis. |
| Coil Enclosure Material | Polycarbonate, polyurethane plastic. The plastic materials<br>used are fire rated and have a high impact and tensile<br>strength similar to Advanced Imaging Research's Neonate<br>Coils (K023929, K083541) and infant cardiac array<br>(K083539) |
| Coil Design | 20 element, receive-only RF coil array. The Infant Array<br>consists of two sections: infant head spine array (IHSA)<br>and anterior cardiac section (CAR), which is positioned<br>above the IHSA and supported on a sliding adjustable<br>height gantry. Coil elements and associated circuitry are |
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enclosed in a rigid former to prevent any exposure to patient or environment.
- Decoupling With RF chokes and fast acting pin-diode switching diodes similar to GE's 1.5T and 3.0T 16 channel head neck spine arrays (K052621, K093348).
Does not transmit RF power, decoupling isolates the coil Prevention of RF Burns elements from RF fields during RF transmission similar to GE's 1.5T and 3.0T 16 channel head neck spine arrays (K052621, K093348). Coil elements and associated circuitry are enclosed in a non-conductive plastic housing.
- Radio-Frequency Absorption Coil is receive-only and does not transmit RF power, similar to GE's 1.5T and 3.0T 16 channel head neck spine arrays (K052621, K093348).
Formation of Resonance Loops Active diodes and RF fuses isolate the coil elements from whole body RF coil transmit; length and routing of output cable does not permit looping similar to similar to GE's 1.5T and 3.0T 16 channel head neck spine arrays (K052621, K093348).
- 11. Testing was performed to demonstrate that the Infant Summary of Studies: Array meet the predetermined acceptance criteria
Conclusion:
It is the opinion of Advanced Imaging Research that the Infant Array herein is substantially equivalent to GE's adult head and neck spine arrays. Testing and usage of the Infant Array does not result in any new potential hazards.
l 2. List of Attachments
- 1. 510(k) Summary
- 2. Statement of Indications
- Device Characteristics: Drawings/Illustrations 3.
- 4. Device Characteristics: Imaging Performance
- న. Safety
- 6. Labeling - Product Brochures, Operator's Manuals
- 7. Comparison to Predicate Device
- 8. Images
- 9. Publications
- 10. Form 3654, Form 3674
We believe this narrative, the foregoing information, and the referenced attachments demonstrate the substantial equivalence of the Infant Array to the predicate devices, and will be sufficient for the Food and Drug Administration to reach a favorable decision on this submission.
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I certify that, in my capacity as the Official Correspondent for Advanced Imaging Research Inc., I believe that, to the best of my knowledge, all data and information submitted in this pre-market notification are truthful and accurate and that no material fact has been omitted. I can be reached at the following, if necessary. Thank you for your consideration of this submission.
Contact Information: Phone: 216-426-1461 Fax: 216-426-1180 email: ravi@sreemedical.com
Respectfully Submitted,
Ravi Srinivasan, President
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Image /page/5/Picture/0 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. Inside the circle is an abstract symbol resembling three stylized human profiles facing to the right, with flowing lines beneath them.
## DEPARTMENT OF HEALTH & HUMAN SERVICES
#### Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room - WO66-G609 Silver Spring, MD 20993-0002
MAR 2 9 2012
Mr. Ravi Srinivasan President Advanced Imaging Research, Inc. P.O. Box 603220 CLEVELAND OH 44103
Re: K113365
Trade/Device Name: Infant Array Regulation Number: 21 CFR 892.1000 Regulation Name: Magnetic resonance diagnostic device Regulatory Class: II Product Code: 90 MOS Dated: February 22, 2012 Received: February 28, 2012 ·
#### Dear Mr. Srinivasan:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into class II (Special Controls), it may be subject to such additional controls. Existing major regulations affecting your device can be found in Title 21, Code of Federal Regulations (CFR), Parts 800 to 895. 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 Parts 801 and 809); medical device reporting (reporting of
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### Page 2
medical device-related adverse events) (21 CFR 803); and good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820). This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Parts 801 and 809), please contact the Office of In Vitro Diagnostic Device Evaluation and Safety at (301) 796-5450. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office
of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html.
Sincerely Yours,
Janine M. Morris
Acting Director Division of Radiological Devices Office of In Vitro Diagnostic Device Evaluation and Safety Center for Devices and Radiological Health
Enclosure
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510(k) Number (if Known):
K113365
Device Name:
Infant Array
Indications for Use:
The Infant Array when used in conjunction with GE, Siemens and Philips 1.5T and 3T MRU systems or Infant Array when used with the MRI compatible incubator and in conjunction with the abovementioned MRI systems provide imaging of the infant's brain, spine, heart, torso and extremities. When interpreted by a trained physician, these images provide information that can be useful in the determination of the diagnosis.
. Anatomical Region:
. Nucleus Excited:
. Diagnostic Uses:
Pre-, term newborn infant heart and torso Proton 1H 1D, 2D, 3D T1, T2 Weighting Proton Density Chemical Shift Diffusion Weighted Imaging Functional MRI MR Blood Flow (angiography) MR Spectroscopy
### (PLEASE DO WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED) Concurrence of CDRH, Office of Device Evaluation (ODE)
Prescription Use OR (Per 21 CFR 801-109 810k
Over-the-Counter Use_
(Optional Format 1-2-96)
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.