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510(k) Data Aggregation

    K Number
    K983832
    Date Cleared
    1999-01-25

    (87 days)

    Product Code
    Regulation Number
    874.1090
    Reference & Predicate Devices
    N/A
    Predicate For
    N/A
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The Interacoustics MT10 Handheld Impedance Audiometer is an easy to use handheld diagnostic middle ear analyzer that is well suited for providing quick and reliable results in both diagnostic and screening settings. The tympanometry test features a user selectable extended pressure range that is capable of -600daPa. Four ipsilateral reflexes at different frequencies may be tested at each ear. Reflex testing operates either at a user defined fixed level or uses an automatic intensity search function. It assists in the diagnosis of now sible otologic disorders.

    Device Description

    Our device, the Model MT10 Handheld Impedance Audiometer is an easy to use handheld diagnostic middle ear analyzer that is well suited for providing quick and reliable results in both diagnostic and screening settings. The tympanometry test features a user selectable extended pressure range that is capable of -600daPa. Four ipsilateral reflexes at different frequencies may be tested at each ear. Reflex testing operates either at a user defined fixed level or uses an automatic intensity search function. It assists in the diagnosis of possible otologic disorders.

    AI/ML Overview

    The provided text describes the Interacoustics Model MT10 Handheld Impedance Audiometer and its similarity to a predicate device, the Grason Stadler GSI-37 Auto Tymp, for the purpose of 510(k) clearance.

    However, the document does not contain information about specific "acceptance criteria" in terms of performance metrics (e.g., sensitivity, specificity, accuracy) for the device, nor does it detail a study that proves the device meets such criteria. Instead, the submission focuses on demonstrating substantial equivalence to a legally marketed predicate device based on technical specifications and adherence to relevant standards.

    Therefore, many of the requested sections about acceptance criteria, device performance, and details of a performance study cannot be filled from the provided text.

    Here's an attempt to answer the questions based on the available information:


    Acceptance Criteria and Device Performance

    The submission does not specify quantitative acceptance criteria in terms of clinical performance metrics, nor does it present detailed study results in that format. The "acceptance criteria" in this context appear to be compliance with established performance and safety standards, and demonstrating substantial equivalence to a predicate device.

    1. Table of Acceptance Criteria and Reported Device Performance

    Acceptance Criteria (Implied)Reported Device Performance (vs. Predicate/Standards)
    (Functional/Technical Specifications - Implicit criteria are that the device performs comparably to or better than the predicate, and meets relevant standards)
    Display TypeDigital (Equivalent to Predicate)
    Form FactorLightweight, handheld (Equivalent to Predicate)
    Hardcopy PrintoutProvides objective documentation of otitis media and other middle ear disorders (Equivalent to Predicate)
    Intensity Range10dBHL to 50dBHL (Predicate: Not applicable)
    Pressure Range+300 -600 daPa/sec. (Predicate: +200 -400 daPa/sec.) - Range is broader than predicate.
    Compliance Range.0 to 2.5 cc displayed; .0 to 5.0 cc numeric (Predicate: .0 to 1.5 cm³ displayed) - Range is broader than predicate.
    Tests PerformedTympanometry, acoustic reflex and screening audiometry (Predicate: Tympanometry) - More tests than predicate.
    Software CompatibilityCompatible Windows Software: laBase 95 database program; Printview for on-line PC monitoring and printing; NOAH hearing aid fitting software (Predicate: None) - Additional functionality.
    Applicable StandardsMeets or exceeds IEC 1027-1995, ANSI 3.60 -1989, ANSI 3.60-1985, Safety IEC 601-1-1988. Approved for Medical CE-marking by Danish Notified Body D.G.M. Identification No. 0543, Quality System Certificate DGM 016 (CE 0543) (Predicate: Meets ANSI S3.39 - 1987 for Type 4 Instrument and IEC 601-1-1988) - Meets specified performance and safety standards.
    Available Frequencies.5kHz, 1kHz, 2kHz, 3kHz & 4kHz (Predicate: Not applicable)
    Probe Tone Frequency226 Hz, +/-3% (Equivalent to Predicate)
    Probe Tone Amplitude85dB SPL +/-3dB (Predicate: 85.5 dB SPL, +/-2.0 dB) - Comparable.
    Power SourceNiMH batteries or Standard AA NiCa batteries (Predicate: NiCad batteries) - Similar.
    Direction of Pressure SweepPositive to negative (Equivalent to Predicate)
    Size and Weight (Probe)4" x 10" x 5"; 1 lb. (Predicate: 2.4" x 8.3" x 4.3"; 10.5 oz) - Differences in physical dimensions.
    External Power Supply(optional) 1.8 lbs (recharger power supply EPS11 power transformer-11 volts) (Predicate: (optional) 1.5 lbs. (recharger power supply -9 volts)) - Similar.

    2. Sample size used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)

    The document does not describe a clinical or performance study with a test set of data or human subjects. The submission relies on technical comparisons and adherence to standards rather than clinical data for demonstrating substantial equivalence.

    3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts

    Not applicable, as no clinical test set requiring ground truth established by experts is described.

    4. Adjudication method (e.g. 2+1, 3+1, none) for the test set

    Not applicable, as no clinical test set requiring adjudication is described.

    5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance

    Not applicable. This device is an impedance audiometer, providing objective measurements, not an AI-assisted diagnostic tool that would involve human readers interpreting results in conjunction with AI.

    6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done

    This is an impedance audiometer providing objective measurements. The concept of "standalone algorithm performance" as typically applied to AI/imaging diagnostics does not directly apply here. The device itself performs the measurements. Its "standalone" performance is dictated by its technical specifications and adherence to standards, which are detailed in the comparison table.

    7. The type of ground truth used (expert consensus, pathology, outcomes data, etc)

    Not applicable, as no clinical performance study with defined ground truth is described. The "ground truth" for this type of device's regulatory submission is its capability to meet technical specifications and established standards, and its equivalence to a predicate device in performing its intended function.

    8. The sample size for the training set

    Not applicable, as this device would not typically involve a "training set" in the context of machine learning or AI.

    9. How the ground truth for the training set was established

    Not applicable, for the same reasons as above.


    Summary of Device Approval Approach:

    The provided 510(k) summary indicates that the Interacoustics Model MT10 Handheld Impedance Audiometer received clearance based on:

    • Substantial Equivalence: Demonstrating that it is as safe and effective as a legally marketed predicate device (Grason Stadler GSI-37 Auto Tymp) through a comparison of technical specifications and indications for use.
    • Compliance with Standards: Meeting recognized national and international performance and safety standards (IEC 1027-1995, ANSI 3.60 -1989, ANSI 3.60-1985, Safety IEC 601-1-1988).
    • CE Mark Approval: The device was also approved for Medical CE-marking, indicating compliance with European safety and performance requirements.

    The document does not detail any clinical performance studies that might involve patient data, expert interpretations, or statistical measurements of accuracy, sensitivity, or specificity.

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