MODEL 340GE-21C QUADRATURE BRAIN COIL

K982978 · Medical Advances, Inc. · MOS · Nov 23, 1998 · Radiology

Device Facts

Record IDK982978
Device NameMODEL 340GE-21C QUADRATURE BRAIN COIL
ApplicantMedical Advances, Inc.
Product CodeMOS · Radiology
Decision DateNov 23, 1998
DecisionSESE
Submission TypeTraditional
Regulation21 CFR 892.1000
Device ClassClass 2

Intended Use

Magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA) of the brain, brain vasculature and other intracranial structures.

Device Story

Model 340GE-21C Quadrature Brain Coil is an accessory for GE Signa Contour 0.5 T MRI systems. Device functions as a radiofrequency (RF) receiver coil to capture magnetic resonance signals from the brain, brain vasculature, and intracranial structures. Used in clinical settings by trained MRI technologists/radiologists. Input consists of RF signals generated during MRI sequences (2D/3D imaging, proton density, T1/T2 weighted, time of flight, phase contrast, DWI, EPI). Coil transforms these signals for system processing to produce diagnostic images. Output is visualized by clinicians to assess intracranial anatomy and pathology. Device does not alter system safety parameters (static field, RF power, acoustic noise) or imaging performance (SNR, uniformity, resolution) compared to predicate.

Clinical Evidence

No clinical data. Substantial equivalence is based on bench testing and comparison of safety and imaging performance parameters (SNR, uniformity, geometric distortion, resolution) against the host MRI system's established specifications.

Technological Characteristics

Quadrature RF receiver coil designed for GE Signa Contour 0.5 T MRI systems. Complies with UL 544, UL 94 (flammability), and IEC 601-1 (general safety). Passive hardware component; no internal software or active processing algorithms.

Indications for Use

Indicated for patients requiring MRI or MRA imaging of the brain, brain vasculature, and intracranial structures.

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.

Related Devices

Submission Summary (Full Text)

{0}------------------------------------------------ # K982978 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ ## NOY 2 3 1998 ## 510(k) Summary of Safety and Effectiveness | Device Name | Model 340GE-21C Quadrature Brain Coil | |-----------------------------------|---------------------------------------------------------------------------------------------------------------------------------------| | Applicability | Compatible with GE Signa Contour 0.5 T MRI systems | | Reason for 510(k) | New device | | Classification Name | Magnetic Resonance Diagnostic Device | | Device Classification Panel | Radiology | | Device Classification Number | 892.1000 | | Product Code | 90LNH | | Common Name | Magnetic Resonance Imaging Coil | | Proprietary Name | Model 340GE-21C Quadrature Brain Coil | | Establishment Registration Number | 2183683 | | Address of MFG Facility | Medical Advances, Inc.<br>10437 Innovation Drive<br>Milwaukee, WI 53226 | | Point of Contact | Thomas E. Tynes<br>Vice President - Operations<br>(414) 258-3808 Ext. 407 | | Classification | Class II | | Intended Uses | | | Diagnostic Uses | 2D, 3D imaging, proton density, T1 and T2 weighted<br>imaging. 2D, 3D time of flight, phase contrast imaging,<br>DWI and EPI imaging. | | Anatomic Regions | Brain, brain vasculature and other intracranial structures | {1}------------------------------------------------ #### Standards | Performance Standards | None Established under Section 514 | | |----------------------------|------------------------------------|-----------------------------------------------------------------| | Voluntary Safety Standards | UL 544 | Medical and Dental Equipment | | | UL 94 | Tests for Flammability of Plastic<br>Materials | | | IEC 601-1 | General Safety Requirements for<br>Medical Electrical Equipment | #### Overview The Radiology Devices Panel considered potential concerns regarding the safe and effective operation of Magnetic Resonance Diagnostic Devices when they recommended reclassification to Class II on July 27, 1987. After reclassification, the FDA's Center for Devices and Radiological Health released a draft guidance document for the content and review of Magnetic Resonance Diagnostic Device premarket notification submissions that offered clarification of these concerns. The following is a summary of the information contained within this premarket notification that addresses these concerns: The GE Signa Contour 0.5 T MRI system operated with the Medical Advances Quadrature Brain Coil is substantially equivalent to the same system operated with the legally marketed predicate device listed in section 4.0, within the Class II definition of Maggetic Resonance Diagnostic Device with respect to the safety parameter action levels: #### Safety Parameters | Maximum Static Magnetic Field: | No change | |-----------------------------------------|-----------| | Rate of Magnetic Field Strength Change: | No change | | RF Power Deposition: | No change | | Acoustic Noise Levels: | No change | {2}------------------------------------------------ #### Imaging Performance Parameters | Specification Volume: | No change | |-----------------------------------|-----------| | Signal-to-Noise Ratio: | No change | | Image Uniformity: | No change | | Geometric Distortion: | No change | | Slice Thickness and Gap: | No change | | High Contrast Spatial Resolution: | No change | ### General Safety and Effectiveness Concerns The device contains instructions for use. It includes indications for use, precautions, cautions, contraindications, warnings and quality assurance testing. This information assures safe and effective use of the device. #### Substantial Equivalence Summary The GE Signa Contour 0.5 T MRI system operated with the Medical Advances Quadrature Brain Coil addressed in this PMN, has the same intended use and technological characteristics as the same system operated with the identified legally marketed predicate device. The use of this coil does not affect the GE Signa Contour 0.5 T system safety parameter specifications. {3}------------------------------------------------ Image /page/3/Picture/0 description: The image is a black and white logo for the U.S. Department of Health & Human Services. The logo features a stylized image of three human profiles facing right, stacked on top of each other. The profiles are simple and abstract, with only the outlines of the faces visible. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" is arranged in a circular fashion around the image. Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850 NOV 23 1998 Thomas E. Tynes Vice President-Operations Medical Advances, Inc. 10437 Innovation Drive Milwaukee, WI 53226 Re: K982978 Model 340GE-21C Quadrature Brain Coil Dated: August 24, 1998 Received: August 26, 1998 Regulatory class: II 21 CFR 892.1000/Procode: 90 MOS Dear Mr. Tynes: We have reviewed your Section 510(k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to 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). 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 either class II (Special Controls) or class III (Premarket Approval), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 895. A substantially equivalent determination assumes compliance with the Current Good Manufacturing Practice requirements, as set forth in the Quality System Regulation (QS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic QS inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in regulatory action. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations. This letter will allow you to begin marketing your device as described in your 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 Part 801 and additionally 809.10 for in vitn diagnostic devices), please contact the Office of Compliance at (301) 594-4613. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address "http://www.fda.gov/cdrf/dsmadsmamain.html". Sincerely yours, Lillian Yih, Ph.D. Lillian Yin, Ph.D. Director, Division of Reproductiv Abdominal. Ear. Nose and Throa and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health Enclosure {4}------------------------------------------------ Page __ 510(k) Number (if known):_____________________________________________________________________________________________________________________________________________________ Device Name: Model 340 Series: Quadrature Brain Coil Indications for Use: Magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA) of the brain, brain vasculature and other intracranial structures. (PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED) Concurrence of CDRH, Office of Device Evaluation (ODE) Ehrid A. Seyenn (Division Sign Off) (Division Sign-Off) Division of Reproductive, Abdominal, ENT, and Radiological De 510(k) Number K982978 Prescription Use (Per 21 CFR 801.109) OR Over-The-Counter Use _________________________________________________________________________________________________________________________________________________________ (Optional Format 1-2-96)
Innolitics
510(k) Summary
Decision Summary
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