K Number
K961624
Device Name
FLEXART TMJ COIL
Date Cleared
1996-10-18

(175 days)

Product Code
Regulation Number
892.1000
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdparty
Intended Use
General disease of the TMJs
Device Description
Magnetic Resonance Device Accessory - Bilateral TMJ Coil
More Information

Not Found

No
The summary describes a passive accessory (a coil) for an MRI device and contains no mention of AI, ML, or image processing capabilities.

No
The device is described as a "Magnetic Resonance Device Accessory - Bilateral TMJ Coil" and is used for "General disease of the TMJs." This indicates it's an imaging accessory for diagnosis, not a device that provides therapy. Its predicate devices are also imaging coils.

Yes
The device is described as a "Magnetic Resonance Device Accessory" for "General disease of the TMJs," with "Magnetic Resonance" as the Input Imaging Modality. Magnetic Resonance imaging is a diagnostic imaging technique, and an accessory for such a device used to identify disease indicates a diagnostic purpose.

No

The device is described as a "Magnetic Resonance Device Accessory - Bilateral TMJ Coil," which is a hardware component used in MRI.

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

Here's why:

  • Intended Use: The intended use is "General disease of the TMJs," which refers to a condition within the body, not the analysis of samples taken from the body.
  • Device Description: The device is described as a "Magnetic Resonance Device Accessory - Bilateral TMJ Coil." This is a component used with an imaging system (MRI) to visualize internal structures.
  • Input Imaging Modality: The input is "Magnetic Resonance," which is an imaging technique, not a method for analyzing biological samples.
  • Anatomical Site: The anatomical site is "TMJs," which are joints within the body.

IVD devices are used to examine specimens (like blood, urine, tissue) taken from the human body to provide information about a person's health. This device is used to image a part of the body directly.

N/A

Intended Use / Indications for Use

General disease of the TMJs

Product codes

LNH

Device Description

Not Found

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Magnetic Resonance

Anatomical Site

TMJs (Temporomandibular Joints)

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)

K933018, K943021

Reference Device(s)

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information

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

Appendix A

510(k) Summary

K961624

Date:23 April 1996 OCT 18 1996
Submitter:Toshiba America MRI, Inc.
280 Utah Avenue
South San Francisco, CA 94080
Contact:Steven M. Kay
(714) 730-5000
Classification Name:Magnetic Resonance Device Accessory - Bilateral TMJ Coil
Classification:Class II-90LNH, per 21 CFR 892.1000
Device Tier:2, according to the December 15, 1993 DRAERD Triage Pilot Program
Common Name:Bilateral TMJ CoilTM
Proprietary Name:FlexartTM Bilateral TMJ Coil
Model Name:FlexartTM
Establishment Registration Number:2936923

Applicable Performance Standards:

None, although this device follows the requirements of the current Guidance for the Content and Review of a Magnetic Resonance Diagnostic Device 510(k) Application,

Substantial Equivalence Summary:

The new Flexart" Bilateral TMJ Coil is compared to the 100mm surface coil cleared with the Flexart" 510(k) K933018 and the MRT-150A Bilateral TMJ Coil cleared in K943021. The coils share similar Signal-to-Noise ratios, attachment schemes, tuning and detuning schemes and safety parameters. The Flexart " Bilateral TMJ Coil does not change the previously cleared safety parameters of the Flexart" system. Manufacturing methodology and software verification and validation procedures for the Flexart™ remain unchanged. Patient contact materials are the same as those previously cleared for other Toshiba coils.

1

Safety Parameters

Maximum Static Field Strength0.5Tesla
Rate of Change of Magnet Field:6.97 T/s axial, 10.64 T/s transverse, with
T> 700 microseconds
Radiofrequency Power Depostion:0.256 W/kg
Acoustic Noise Levels:89.5 - 94.5 Typical

Note: Safety parameters of the Flexart are not changed from those cleared in the MRT-50GP 510(k) K933018.

:

Imaging Performance Parameters

1. Specification volume:10 cm dsv head, 20 cm dsv body
2. Signal to Noise Ratio (typical):
Transaxial: 167
Coronal: 154
Sagittal: 224
3. Uniformity:Unchanged
4. Geometric Distortion:Unchanged
5. Slice profile in the orthogonal planes:Unchanged
6. Slice thickness:Unchanged
7. Interslice spacing:Unchanged

Indications for Use

General disease of the TMJs