Search Filters

Search Results

Found 1 results

510(k) Data Aggregation

    K Number
    K141690
    Date Cleared
    2014-08-01

    (39 days)

    Product Code
    Regulation Number
    892.2050
    Reference & Predicate Devices
    N/A
    Predicate For
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    JUSHA-M33C LCD Monitor is intended to be used in displaying and viewing digital images for diagnosis of X-ray or MRI, etc. by trained medical practitioners. The device is not specified for digital mammography system.

    Device Description

    JUSHA-M33C LCD Monitor is the display system with the high resolution (2048*1536), high luminance (1000 cd/m²), and 1024 simultaneous shades of gray out of a palette of 4096, 10 DICOM look up table and 3 GAMMA look up table inside. JUSHA-M33C has ambient brightness adapting and presence induction system, with these this display can automatic adjustment according to different requirements in order to achieve the best results.
    The product is consisted of the following components:

    • 21.3inches, Mono-TFT LCD Panel
    • JUSHA- 45T motherboard/FR-4/REV:0.9
    • JUSHA-M33C LCD Monitor software
    • Power Adapter
    • Data Cable.
      The LCD Monitor is designed, tested, and will be manufactured in accordance with both mandatory and voluntary standards:
    1. IEC 60601-1Medical equipment medical electrical equipment - Part 1: General requirements for basic safety and essential performance 2005+CORR.1(2006)+CORR.2(2007)
    2. IEC 60601-1-2 Edition 3:2007, Medical electrical equipment - Part 1-2: General requirements for basic safety and essential performance - Collateral standard: Electromagnetic compatibility - Requirements and tests.
    AI/ML Overview

    The provided document is a 510(k) Premarket Notification for the JUSHA-M33C LCD Monitor. This document is for a medical display device, not an AI/ML powered device, therefore, many of the requested criteria related to AI/ML studies are not applicable.

    Here's an analysis of the acceptance criteria and the study that proves the device meets them, based on the provided text:

    1. Table of Acceptance Criteria and Reported Device Performance

    The document does not explicitly present a "table of acceptance criteria" in the way one might expect for a diagnostic AI model (e.g., sensitivity, specificity, AUC thresholds). Instead, the acceptance criteria for a medical display monitor are implicitly tied to demonstrating substantial equivalence to a legally marketed predicate device (EIZO GX340) by meeting relevant performance and safety standards.

    The table below summarizes the key performance characteristics provided for the proposed device and its predicate. The "acceptance criteria" here are essentially the predicate device's specifications, which the proposed device aims to match or exceed to demonstrate substantial equivalence.

    AttributeAcceptance Criteria (Predicate: EIZO GX340)Reported Device Performance (JUSHA-M33C LCD Monitor)
    Screen Technology21.3" Monochrome TFT LCD Panel21.3 inches, Mono-TFT LCD Panel
    Viewing Angle (H, V)Horizontal 176°, Vertical 176°Horizontal 176°, Vertical 176°
    Resolution2048 x 1536 / 1536 x 20482048 x 1536 / 1536 x 2048
    Display Area324.8 (H) x 433.1 (V) mm325.00 (H) x 433.00 (V) mm
    Contrast Ratio1400:11400:1
    Scanning Freq (H; V)31127 kHz; 2961.5 Hz96.7 kHz; 60 Hz
    Recommended Luminance500 cd/m²500 cd/m²
    Pixel Pitch0.2115 x 0.2115 mm0.2115 x 0.2115 mm
    BacklightLEDLED
    DICOM LUT10-bit (Display Port): 1024; 8-bit: 2564096
    Luminance CalibrationBuilt in calibration sensor providedBuilt in calibration sensor provided
    Input SignalsDVI standard 1.0, DisplayPort 1.1aDVI standard 1.0, DisplayPort 1.1a
    Input TerminationalDVI-D (dual link) x 1, DisplayPort x 1DVI-D (dual link) x 1, DisplayPort x 1
    Display ControllerOff the shelfOff the shelf
    Power RequirementAC 100240V 5060HzAC 100240V 5060Hz
    Power Consumption/Save Mode36W / less than 1.6W45W / less than 3W
    Power ManagementDVI DMPM, DisplayPort 1.1aDVI DMPM, DisplayPort 1.1a
    USB Ports/Standard1 upstream (endpoint), 2 downstream / Rev. 2.01 upstream (endpoint), 2 downstream / Rev. 2.0
    Applicable StandardsIEC 60601-1, IEC 60601-1-2IEC 60601-1, IEC 60601-1-2

    Study to Prove Acceptance Criteria:

    The study proving the device meets the acceptance criteria is implicit within the "Determination of Substantial Equivalence" section. The document states:

    • "The LCD Monitor complies with voluntary standards as following: IEC 60601-1... IEC 60601-1-2..." These indicate testing was performed to demonstrate compliance with these safety and essential performance standards.
    • "JUSHA-M33C is substantially equivalent to EIZO GX340. JUSHA-M33C employs the maximum resolution values same as that of EIZO GX340. Comparison table of the principal characteristics of 2 devices is shown in the Attachment 1." The comparison table (reproduced above) is the primary "study" or evidence to support the claim of substantial equivalence based on technical specifications.

    2. Sample Size Used for the Test Set and Data Provenance

    This is not applicable as this is a hardware device (LCD monitor), not a software algorithm that processes medical images. The "test set" here refers to the device itself being tested against standards and compared to a predicate, not a dataset of patient images.

    3. Number of Experts Used to Establish Ground Truth for the Test Set and Qualifications

    This is not applicable. Ground truth, in the context of image interpretation, is not established for a medical display device during its 510(k) submission. The performance of the monitor is assessed by technical specifications and compliance with standards, not by expert consensus on medical images displayed on it for the purpose of regulatory submission.

    4. Adjudication Method for the Test Set

    This is not applicable. As explained above, the "test set" and ground truth for image interpretation are not relevant for this hardware device submission.

    5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study Was Done

    No, a Multi-Reader Multi-Case (MRMC) comparative effectiveness study was not done. This type of study is relevant for evaluating the performance of AI algorithms in conjunction with human readers, which is not the subject of this 510(k) submission.

    6. If a Standalone (i.e., algorithm only without human-in-the-loop performance) Was Done

    No, a standalone performance study was not done. This device is an LCD monitor, not an algorithm. Its function is to display images for human interpretation, not to make diagnostic decisions independently.

    7. The Type of Ground Truth Used

    The "ground truth" for this medical device submission is the adherence to established technical specifications, industry standards (IEC 60601-1, IEC 60601-1-2), and the demonstrated equivalence to a predicate device's performance. It is not based on expert consensus on image interpretation, pathology, or outcomes data, as these relate to the content displayed, not the display hardware itself.

    8. The Sample Size for the Training Set

    This is not applicable, as this is a hardware device and does not involve AI/ML training.

    9. How the Ground Truth for the Training Set Was Established

    This is not applicable, as there is no training set for this hardware device.

    Ask a Question

    Ask a specific question about this device

    Page 1 of 1