MSTAR MPD4500

K073457 · Xinaomdt Technology Co., Ltd. · LNH · Feb 1, 2008 · Radiology

Device Facts

• Record ID: K073457
• Device Name: MSTAR MPD4500
• Applicant: Xinaomdt Technology Co., Ltd.
• Product Code: LNH · Radiology
• Decision Date: Feb 1, 2008
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 892.1000
• Device Class: Class 2
• Attributes: 3rd-Party Reviewed

Intended Use

mStar MPF4500 is an imaging device, and is intended to provide the physician with physiological and clinical information, obtained non-invasively and without the use of ionizing radiation. The MR system produces transverse, coronal, sagittal, and oblique images that display the internal structure of the head, body, or extremities. The images produced by the MR system reflect the spatial distribution of protons (hydrogen nuclei) exhibiting magnetic resonance. The NMR properties that determine the image appearance are proton density, spin-lattice relaxation time (Tl), spin-spin relaxation time (E), and flow.

Device Story

MPF4500 is a magnetic resonance imaging (MRI) system; operates by detecting spatial distribution of protons (hydrogen nuclei) using magnetic resonance principles. Inputs: magnetic resonance signals; outputs: transverse, coronal, sagittal, and oblique cross-sectional images. Used in clinical settings by physicians to obtain physiological and anatomical information without ionizing radiation. Images reflect proton density, spin-lattice (T1) and spin-spin (T2) relaxation times, and flow. Clinicians use these images to assess internal structures of head, body, or extremities, aiding in diagnostic decision-making.

Clinical Evidence

No clinical data provided; bench testing only.

Technological Characteristics

Magnetic resonance diagnostic device; produces transverse, coronal, sagittal, and oblique images; utilizes proton density, T1, T2, and flow properties for image generation. Class II device.

Indications for Use

Indicated for patients requiring non-invasive diagnostic imaging of the head, body, or extremities to visualize internal structures via magnetic resonance properties (proton density, T1, T2, and flow).

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.

Submission Summary (Full Text)

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## MAR 1 3 2008

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

XinAoMDT Technology Co., Ltd. % Mr. Morten Simon Christensen Staff Engineer & FDA Accredited Person Program Underwriters Laboratories, Inc. 455 E. Trimble Road SAN JOSE CA 95131-1230

Re: K073457 Trade/Device Name: MPF4500 Regulation Number: 21 CFR 892.1000 Regulation Name: Magnetic resonance diagnostic device Regulatory Class: II Product Code: MOS Dated: January 15, 2008 Received: January 18, 2008

Dear Mr. Christensen:

This letter corrects our substantially equivalent letter of February 1, 2008.

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 (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 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 requirements, including, but not limited to: registration and listing (21 CFR Part

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## Page 2 - Mr. Christensen

807); labeling (21 CFR Part 801); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (sections 531-542 of the Act); 21 CFR 1000-1050.

This letter will allow you to continue 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 Part 801), please contact the Office of Compliance at [phone]. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). 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/dsma/dsmamain.html

Sincerely vours.

Joru M. Whay

Sin Nancy C. Brogdon Director, Division of Reproductive, Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health

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Premarket Notification Abbreviated 510(k) Submission-Indications for Use Report No .: A20071003

## Indications for Use

510(k) Number:

Device Name:

MPF4500

073457

## Indications for Use:

mStar MPF4500 is an imaging device, and is intended to provide the physician with physiological and clinical information, obtained non-invasively and without the use of ionizing radiation. The MR system produces transverse, coronal, sagittal, and oblique images that display the internal structure of the head, body, or extremities. The images produced by the MR system reflect the spatial distribution of protons (hydrogen nuclei) exhibiting magnetic resonance. The NMR properties that determine the image appearance are proton density, spin-lattice relaxation time (Tl), spin-spin relaxation time (E), and flow.

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 Device Evaluation (ODE)

Toni M. Whang

(Division Sign-Off) Division of Reproductive, Abdominal and Radiological Devices 510(k) Number

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