K Number
K991724
Device Name
QUADRATURE LOWER EXTREMITY COIL, MODEL 473PH-64
Date Cleared
1999-08-02

(74 days)

Product Code
Regulation Number
892.1000
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
Magnetic resonance imaging (MRI) of the knee, ankle, foot, and associated structures.
Device Description
Model 473PH-64 Quadrature Lower Extremity Coil. Compatible with Philips Gyroscan ACS-NT 1.5T MRI System.
More Information

Not Found

Not Found

No
The summary describes an MRI coil, which is a hardware component, and does not mention any software or algorithms that would incorporate AI/ML. The performance studies focus on hardware imaging parameters.

No
The device is a coil used for magnetic resonance imaging (MRI), which is an imaging modality for diagnosis, not therapy. Its function is to acquire images, as indicated by "Magnetic resonance imaging (MRI) of the knee, ankle, foot, and associated structures."

No

The device is an MRI coil, which is an accessory used for image acquisition, not for diagnosis itself. The performance studies focus on imaging parameters rather than diagnostic accuracy.

No

The device description explicitly states it is a "Quadrature Lower Extremity Coil," which is a hardware component used in MRI systems.

Based on the provided information, this device is not an IVD (In Vitro Diagnostic).

Here's why:

  • Intended Use: The intended use is for "Magnetic resonance imaging (MRI) of the knee, ankle, foot, and associated structures." This describes an imaging device used in vivo (on a living patient) to produce images, not a device used in vitro (outside the body) to examine specimens like blood, tissue, or urine.
  • Device Description: The device is described as a "Quadrature Lower Extremity Coil" for an MRI system. This is a component of an imaging system, not a diagnostic test performed on a sample.
  • Lack of IVD Characteristics: There is no mention of analyzing biological samples, detecting biomarkers, or providing diagnostic information based on laboratory analysis.

IVD devices are specifically designed to perform tests on specimens taken from the human body to provide information for the diagnosis, monitoring, or treatment of diseases or conditions. This device is an imaging coil used to acquire images of the body itself.

N/A

Intended Use / Indications for Use

Magnetic resonance imaging (MRI) of the knee, ankle, foot, and associated structures.

Product codes (comma separated list FDA assigned to the subject device)

90LNH

Device Description

Model 473PH-64 Quadrature Lower Extremity Coil. Compatible with Philips Gyroscan ACS-NT 1.5T MRI System.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Magnetic Resonance Imaging (MRI)

Anatomical Site

Knee, ankle and foot.

Indicated Patient Age Range

Not Found

Intended User / Care Setting

Not Found

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

Not Found

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

Not Found

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Not Found

Predicate Device(s): If the device was cleared using the 510(k) pathway, identify the Predicate Device(s) K/DEN number used to claim substantial equivalence and list them here in a comma separated list exactly as they appear in the text. List the primary predicate first in the list.

Not Found

Reference Device(s): Identify the Reference Device(s) K/DEN number and list them here in a comma separated list exactly as they appear in the text.

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information for the subject device only (e.g. presence / absence, what scope was granted / cleared under the PCCP, any restrictions, etc).

Not Found

§ 892.1000 Magnetic resonance diagnostic device.

(a)
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).(b)
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.

0

K99724

510(k) Summary of Safety and Effectiveness

| Device Name | Model 473PH-64
Quadrature Lower Extremity Coil |
|-----------------------------------|------------------------------------------------------------------------------------------------------------------|
| Applicability | Compatible with Philips Gyroscan ACS-NT 1.5T
MRI System |
| 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 473PH-64
Quadrature Lower Extremity Coil |
| Establishment Registration Number | 2183683 |
| Address of MFG Facility | Medical Advances, Inc.
10437 Innovation Drive
Milwaukee, WI 53226 |
| Point of Contact | Thomas E. Tynes
Vice President - Operations
(414) 258-3808 Ext. 407 |
| Classification | Class II |
| Intended Uses | |
| Diagnostic Uses | 2D, 3D imaging, proton density, T1 and T2
weighted imaging. 2D, 3D time of flight, phase
contrast imaging. |
| Anatomic Regions | Knee, ankle and foot. |

1

Standards

Performance StandardsNone Established under Section 514
Voluntary Safety StandardsUL 2601-1Medical Electrical Equipment, Part
1: General Requirements for Safety
UL 94Tests for Flammability of Plastic
Materials
IEC 601-1General Safety Requirements for
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 Philips Gyroscan ACS-NT 1.5T MRI System operated with the Medical Advances Quadrature Lower Extremity Coil is substantially equivalent to the same system operated without the Medical Advances Quadrature Lower Extremity Coil, within the Class II definition of Magnetic 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 Philips Gyroscan ACS-NT 1.5T MRI System operated with the Medical Advances Quadrature Lower Extremity Coil addressed in this PMN, has the same intended use and technological characteristics as the same system operated without the Medical Advances Quadrature Lower Extremity Coil. The use of this coil does not affect the Philips Gyroscan ACS-NT 1.5T System safety parameter specifications.

3

DEPARTMENT OF HEALTH & HUMAN SERVICES

Image /page/3/Picture/1 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" around the perimeter. Inside the circle is an abstract image of an eagle with its wings spread.

Public Health Service

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

AUG - 2 1999

Thomas E. Tynes Vice President, Operations Medical Advances, Inc. 10437 Innovation Drive Milwaukee, Wisconsin 53226 Re:

K991724 Model 473PH Series: Quadrature Lower Extremity Coil Dated: May 17, 1999 Received: May 20, 1999 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 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). 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 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 Requlations, 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 requlation (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 requlatory 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 vitro 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 requlation 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/cdrh/dsma/dsmamain.html".

Sincerely yours,

[signature]

CAPT Daniel G. Schultz, M.D. Acting Director, Division of Reproductive, Abdominal, Ear, Nose and Throat, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

4

Page of 1 I

长991724 510(k) Number (if known):_____________________________________________________________________________________________________________________________________________________

Device Name: Model 473PH Series: Quadrature Lower Extremity Coil

Indications for Use:

Magnetic resonance imaging (MRI) of the knee, ankle, foot, and associated structures.

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

Concurrence of CDRH, Office of Device Evaluation (ODE)

David b. Seymon

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

Prescription Use (Per 21 CFR 801.109)

OR

Over-The-Counter Use

(Optional Format 1-2-96)