31P/1H HEAD COIL 3T; 23NA/1H HEAD COIL 3T; 13C/1H HEAD COIL 3T

K102748 · Rapid Biomedical GmbH · MOS · May 13, 2011 · Radiology

Device Facts

• Record ID: K102748
• Device Name: 31P/1H HEAD COIL 3T; 23NA/1H HEAD COIL 3T; 13C/1H HEAD COIL 3T
• Applicant: Rapid Biomedical GmbH
• Product Code: MOS · Radiology
• Decision Date: May 13, 2011
• Decision: SESE
• Submission Type: Abbreviated
• Regulation: 21 CFR 892.1000
• Device Class: Class 2

Intended Use

The Dual Tuned Head Coils 3T are indicated for use as a diagnostic imaging device accessory to produce transverse, sagittal, coronal and oblique images, spectroscopic images and/or spectra, and that display the internal structure and/or function of the head. These images and/or spectra when interpreted by a trained physician yield information that may assist in diagnosis.

Device Story

Dual Tuned Head Coils 3T are transmit/receive volume coils for MRI systems; detect RF signals from hydrogen (1H) nuclei combined with phosphorus (31P), carbon (13C), or sodium (23Na) nuclei. Device consists of two single quadrature resonators; one tuned to proton frequency, one to non-proton frequency. Used in clinical/research settings by trained MRI technicians/physicians. Input: RF signals from head tissue. Output: MR images and spectroscopic data. Physician interprets output to assist in diagnosis of internal head structures/functions. Benefits include non-invasive metabolic imaging and structural visualization.

Clinical Evidence

Bench testing only. Performance evaluated per NEMA MS 1-2008 (SNR, uniformity), NEMA MS 3-2008 (SNR, uniformity), NEMA MS 5-2003 (slice profile), and NEMA MS 8-2008 (SAR). Spectroscopic performance validated via SNR, spectral resolution, and decoupling tests. Results demonstrate equivalence to predicate devices.

Technological Characteristics

Transmit/receive volume coil; dual quadrature resonator design. Materials: no new patient-contact materials. Standards: NEMA MS 1-2008, MS 3-2008, MS 5-2003, MS 8-2008. Connectivity: MR system accessory. Sterilization: N/A.

Indications for Use

Indicated for use as a diagnostic imaging accessory for human head imaging and spectroscopy. Intended for prescription use by trained physicians to assist in diagnosis.

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

• Siemens Medical Solutions 31P/IH heart/liver coil (K020991)
• MAGNETOM TRIO QUADRATURE TX/RX HEAD COIL (K021330)

Submission Summary (Full Text)

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# MAY 1 3 2011

#### Section 8 510(k) Summary

This summary of 510(k) safety and effectiveness information is being submitted in accordance with the requirements of 21 CFR § 807.92.

#### I. General Information

Date of summary preparation: September 20th, 2010

# Manufacturer

Rapid Biomedical GmbH Technologiepark Wuerzburg-Rimpar Kettelerstrasse 3-11 D-97222 Rimpar, Germany Germany Registration number: 3005049692

# Importer/Distributor

RAPID MR International, LLC 2236 CityGate Drive Columbus, Ohio 43219-3565 USA Owner/operator number: 10033421

## Contact Person

Mr. Armin Purea Rapid Biomedical GmbH Kettelerstrasse 3-11 D-97222 Rimpar, Germany

Phone: [phone] Fax: [phone] e-mail: [e-mail]

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#### II. Classification and Device Name

| Classification Panel: | Radiology |
|-----------------------|------------------------------------------------|
| Classification Name: | Magnetic Resonance Diagnostic Device Accessory |
| Device Class: | Class II [21 CFR § 892.1000] |
| Product Code: | MOS |
| Product Nomenclature: | Coil, Magnetic Resonance, Specialty |
| Common Name: | Special Purpose Coil |
| Trade Name(s): | 31P/1H Head Coil 3T |
| | 23Na/1H Head Coil 3T |
| | 13C/1H Head Coil 3T |

#### III. Safety and Effectiveness Information Supporting Substantial Equivalence Intended Use

The Dual Tuned Head Coils 3T are indicated for use as a diagnostic imaging device accessory to produce transverse, sagittal, coronal and oblique images, spectroscopic images and/or spectra, and that displays the internal structure of the human head.

# Device Description

The Dual Tuned Head Coils 3T are transmit/receive volume coils to detect radiofrequency (RF) signals of hydrogen (1H) nuclei in combination with either phosphorus (31P), carbon (13C) or sodium (23Na) nuclei. Each coil consists of two single quadrature resonators, one of which is always tuned to the proton frequency, the other being tuned to either phosphorus, carbon or sodium frequency.

# Equivalency Information

Rapid Biomedical believes that the Dual Tuned Head Coils 3T are substantially equivalent to the cleared 31P/IH heart/liver coil by Siemens Healthcare (formerly Siemens Medical Solutions) and the Tx/Rx Head Coil by USA Instruments which are described in the following submissions:

| Predicate Device Name | FDA Clearance Number | FDA Clearance Date |
|------------------------------------------------------------------------------------|----------------------|--------------------|
| Siemens Medical Solutions 31P/IH<br>heart/liver coil included in syngo MR<br>2002B | K020991 | Jun 13th, 2002 |
| MAGNETOM TRIO QUADRATURE<br>TX/RX HEAD COIL | K021330 | May 25th,2002 |

# Summary of Technological Characteristics of the Principal Device as compared. with the Predicate Devices

The new devices feature a combination of both predicates: the ability to conduct spectroscopic examinations on non-proton nuclei is found in the 31P/1H Heart/Liver coil, while the fundamental coil design of a quadrature resonator is comparable to the

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Tx/Rx Head Coil. While the predicate device 31P/1H Heart/Liver was only available as 31P/1H coil, the new devices are also available as 23Na/1H and 13C/1H coils. Although the predicate coil is designed for non-invasive in vivo detection of 31Pmetabolites instead of the 13C and 23Na-metabolites detectable with the coils described in this submission, we believe that they are substantially equivalent Magnetic Resonance Specialty Coils for spectroscopy of nuclei other than protons. Numerous publications by researchers worldwide support the usefulness of 13C and 23Na spectroscopy. No risks different to standard MR occur for the patient during these investigations.

## General Safety and Effectiveness Concerns

The following safety and performance parameters:

[Safety]

- Maximum Static Field
- Rate of Change of Magnetic Field
- Acoustic Noise Level

# [Performance-Imaging]

- Geometric Distortion
- High Contrast Spatial Resolution

# [Performance-Spectroscopy]

- Spatial Localization Accuracy
- Peak Assignment Accuracy
- Solvent Suppression

specified by the FDA Guidance document for MR Diagnostic Devices are unaffected by the modifications described within this notification.

The following parameters were considered for the new Dual Tuned Head Coils 3T:

# [Safety]

- Biocompatibility
- RF Power Deposition

[Performance-Imaging]

- Signal to Noise Ratio

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- Image Uniformity
- Slice Profile, Thickness and Gap

[Performance-Spectroscopy]

- Spectral Resolution
- Signal to Noise Ratio
- Decoupling

No new materials coming in contact with patients were used for the new Dual Tuned Head Coils 3T compared to the predicate device. Therefore no biocompatibility tests were performed. Signal to Noise Ratio (SNR) and image uniformity tests according to NEMA MS 1-2008 and NEMA MS 3-2008 as well as slice profile tests according to NEMA MS 5-2003 were performed for the new Dual Tuned Head Coils 3T and the results presented in this submission show that they are equivalent with the predicate devices. SAR determination was performed according to NEMA MS 8-2008.

Furthermore, spectroscopic tests on SNR, spectral resolution and decoupling were carried out.

## Conclusion as to Substantial Equivalence

Laboratory testing was performed to support this claim of substantial equivalence and to show that the technological differences do not raise any new questions pertaining to safety and effectiveness.

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Image /page/4/Picture/0 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized eagle or bird-like symbol with three curved lines representing its wings or body. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular fashion around the bird symbol. The text is in all caps and appears to be in a sans-serif font.

## 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

Mr. Armin Purea Official Correspondent RAPID Biomedical GmbH Technologiepark Wuerzburg-Rimpar, Kettelerstr. 3-11 Rimpar. Bayern 97222 GERMANY

# MAY 1 3 2011

Re: K102748

Trade/Device Name: Dual Tuned Head Coil 3T Regulation Number: 21 CFR 892.1000 Regulation Name: Magnetic resonance diagnostic device Regulatory Class: II Product Code: MOS Dated: April 4, 2011 Received: April 4, 2011

Dear Mr. Purea:

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

Sincerely Yours.

Mary Pastel

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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#### Section 2 Indications for Use Statement

Indications for Use

510(k) Number (if known): K102748

Device Name: Dual Tuned Head Coils 3T

Indications for Use:

The Dual Tuned Head Coils 3T are indicated for use as a diagnostic imaging device accessory to produce transverse, sagittal, coronal and oblique images, spectroscopic images and/or spectra, and that display the internal structure and/or function of the head. These images and/or spectra when interpreted by a trained physician yield information that may assist in diagnosis.

Prescription Use X (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 if needed)

Concurrence of CDRH, Office of Device Evaluation

(Division Sign-Off)
Division of Radiological Devices
Office of In Vitro Diagnostin Du