MC 1504G-16R, 1.5T, 16-CHANNEL, MC 3004G-16R, 3.0T, 16-CHANNEL HEAD COIL

K110591 · Mr Instruments, Inc. · MOS · Mar 29, 2011 · Radiology

Device Facts

• Record ID: K110591
• Device Name: MC 1504G-16R, 1.5T, 16-CHANNEL, MC 3004G-16R, 3.0T, 16-CHANNEL HEAD COIL
• Applicant: Mr Instruments, Inc.
• Product Code: MOS · Radiology
• Decision Date: Mar 29, 2011
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 892.1000
• Device Class: Class 2
• Attributes: 3rd-Party Reviewed

Indications for Use

This coil is indicated for use in conjunction with 1.5T and 3.0T GE Healthcare Magnetic Resonance Scanner systems to produce images and/or spectra of the head, that when interpreted by a trained physician yield information that may assist in diagnosis.

Device Story

The MC 1504G-16R (1.5T) and MC 3004G-16R (3.0T) are multi-channel receive-only head coils; they utilize 16 RF elements with active/passive blocking networks and integrated preamplifiers. The coils are constructed of rigid plastic with a head support/base. They function as accessories to GE Healthcare MRI scanners; they capture RF signals from the patient's head during standard clinical MRI sequences. The resulting data is processed by the MRI scanner to produce diagnostic images or spectra. These coils are used in clinical settings by MRI technologists; the output is reviewed by physicians to assist in diagnosis. The 16-element phased array design aims to increase sensitivity and reduce data acquisition time compared to 8-element predicate coils.

Clinical Evidence

No clinical trials were conducted. Evidence consists of bench testing (electrical measurements, safety testing per IEC 60601-1, and SNR measurements per NEMA MS-1) and volunteer imaging studies. Volunteer scans were reviewed by registered MRI technologists in a blinded fashion to demonstrate equivalence in image quality compared to predicate devices.

Technological Characteristics

Multi-channel receive-only phased array head coils; 16 RF elements; rigid plastic housing; integrated preamplifiers; tuned to 63.9 MHz (1.5T) or 127.8 MHz (3.0T). Connectivity is via direct interface to GE Healthcare MRI scanners. Safety testing conducted per IEC 60601-1; performance evaluated per NEMA MS-1.

Indications for Use

Indicated for use with 1.5T and 3.0T GE Healthcare MRI scanners to produce head images/spectra for diagnostic assistance by trained physicians.

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.

Predicate Devices

• HRH-63-8, 1.5T, 8-Channel Head Array, MRI Devices (K013159)
• HRH-127-8, 3.0T, 8-Channel Head Array, MRI Devices (K022372)

Submission Summary (Full Text)

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## MAR 2 9 2011

KII0691

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## 510(k) Summary (As required by section 21 CFR 807.92(c))

| Contact: | MR Instruments, Inc.<br>Joshua J. Holwell<br>Chief Operating Officer<br>Telephone: [phone] x326 / Fax: [phone]<br>Email: [e-mail] |
|----------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Date Prepared: | February 7, 2011 |
| Product Trade Name: | MC 1504G-16R, 1.5T, 16-Channel Head Coil<br>MC 3004G-16R, 3.0T, 16-Channel Head Coil |
| Common/Usual Name: | Head Coil / Brain Coil |
| Classification Name: | Magnetic Resonance Diagnostic Device, Class II<br>(21 CFR 892.1000, Product Code MOS) |
| Predicate Device: | HRH-63-8, 1.5T, 8-Channel Head Array,<br>MRI Devices (K013159) |
| | HRH-127-8, 3.0T, 8-Channel Head Array,<br>MRI Devices (K022372) |
| Manufacturer: | MR Instruments, Inc.<br>5610 Rowland Road, Suite 145<br>Minnetonka, MN 55343 |

Establishment Registration: 3003852428

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#### Device Description:

The MC 1504G-16R (1.5T) and MC 3004G-16R (3.0T) Head Coils are multi-channel receive only coils consisting of 16 RF elements. Each RF element has active and passive blocking networks, and integrated preamplifiers. The MC 1504G-16R RF elements are tuned to 'H at 1.5T (63.9 MHz), while the MC 3004G-16R RF elements are tuned to 'H at 3.0T (127.8 MHz). The coil housing is constructed out of a rigid plastic with an opening for patient viewing and comfort; the head support/base is included with each coil assembly.

### Statement of Intended Use:

This coil is indicated for use in conjunction with a Magnetic Resonance Scanner to produce images and/or spectra of the head, that when interpreted by a trained physician vield information that may assist in diagnosis.

### Summary of Technological Characteristics in Comparison to the Predicate Device:

The MC 1504G-16R (1.5T) and MC 3004G-16R (3.0T) Head Coils are substantially equivalent to the MRI Devices HRH-63-8, 1.5T (K013159) and HRH-127-8, 3.0T (K022372) Head Arrays, respectively.

The proposed and predicate devices are both multi-channel RF receive only head coils that utilize phased array technology. Additionally, both the proposed and predicate devices are designed to work in conjunction with a Magnetic Resonance Scanner, and have similar size, shape and construction.

The primary difference between the proposed and predicate devices is that the predicate utilizes an 8 element phased array RF structure as opposed to a 16 element phased array RF structure. The use of additional elements may increase coil sensitivity and reduce data acquisition time.

### Summary of Non-Clinical Testing:

Design verification and validation testing was performed to ensure that the coil design specifications and customer requirements were met.

Electrical bench measurements were performed to ensure proper assembly, function and tuning to established specifications.

Electrical/mechanical device safety and system safety (phantoms) testing were conducted in accordance with IEC 60601-1.

Performance evaluations (phantoms) were completed using the proposed and predicate devices with comparative signal-to-noise (SNR) measurements based on NEMA MS-1.

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Volunteer scans were performed with the proposed and predicate devices to acquire paired images using routine clinical scan sequences. Scan images were then reviewed in blind fashion by registered technologists in magnetic resonance to demonstrate equivalence in resulting image quality.

All system testing was conducted using 1.5T and 3.0T Magnetic Resonance Scanner systems running standard clinical applications.

#### Summary of Clinical Testing:

No additional clinical evaluations of the head coil devices for this use have been conducted.

#### Conclusions:

The MC 1504G-16R (1.5T) and MC 3004G-16R (3.0T) Head Coils are substantially equivalent to the MRI Devices HRH-63-8, 1.5T (K013159) and HRH-127-8, 3.0T (K022372) Head Arrays, respectively.

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Public Health Service

Food and Drug Administration 10903 New Hampshire Avenue Document Control Room - WO66-G609 Silver Spring, MD 20993-0002

MR Instruments, Inc. % Mr. Mark Job Responsible Third Party Official Regulatory Technology Services LLC 1394 25" Street NW BUFFALO MN 55313

MAR 2 9 2011

Re: K110591

Trade/Device Name: MR Instruments, Inc., MC 1504G-16R, 1.5T, 16 Channel Head Coil; MC 3004G-16R, 3.0T, 16 Channel Head Coil Regulation Number: 21 CFR 892.1000 Regulation Name: Magnetic resonance diagnostic device Regulatory Class: II Product Code: MOS Dated: March 16, 2011 Received: March 17, 2011

Dear Mr. Job:

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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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 [phone]. 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.html 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 [phone] or [phone] or at its Internet address . http://www.fda.gov/cdrh/industry/support/index.html.

Sincerely Yours,

Mary Patel

Mary S. Pastel, Sc.D. 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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# Indications for Use

510(k) Number (if known): __

Device Name:

MR Instruments, Inc. MC 1504G-16R, 1.5T, 16-Channel Head Coil MC 3004G-16R, 16-Channel Head Coil
MC 3004G-16R, 3.0T, 16-Channel Head Coil

Indications for Use:

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interpreted by a trained physician yield information that may assist in diagnosis.

Prescription Use _ × (Part 21 CFR 801 Subpart D)

AND/OR

Over-The-Counter Use (21 CFR 801 Subpart C)

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)

Concurrence of CDRH, Office of In Vitro Diagnostic Devices Evaluation (OIVD)

Mung S. Patil

Division Sign-Off Office of In Vitro Diagnostic Device Evaluation and Safety 510(k)_ રી જિલ્લા

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