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510(k) Data Aggregation

    K Number
    K170677
    Date Cleared
    2017-04-05

    (30 days)

    Product Code
    Regulation Number
    882.1870
    Reference & Predicate Devices
    N/A
    Why did this record match?
    Device Name :

    Neurovision Nerve Locator Monitor (Nerveana), EMGView Software

    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The Neurovision Nerve LocatorMonitor is an electronic device consisting of a surgical nerve stimulator and an evoked EMG monitor with integrated detecting and warning capability. This device is intended for use in surgical procedures where motor nerves are at risk to assist the surgeon in locating these nerves. This device is intended for use only by qualified, trained medical practitioners who perform operative surgery and who fully understand that this device is only an adjuvant to proper surgical technique and good surgical judgment.

    The EMGView software is an accessory to the Neurovision Nerve Locator/Monitor. When the dedicated USB output of the EMG unit is connected to a personal computer, the PC installed software provides status monitoring data, troubleshooting data, real-time EMG waveforms, and digital backup of all data obtained during clinical use of the device. The real-time display of EMG waveforms is intended to assist the surgeon with nerve integrity monitoring.

    Device Description

    The Neurovision Nerve LocatorMonitor is an electronic device consisting of a surgical nerve stimulator and an evoked EMG monitor with integrated detecting and warning capability.

    The EMGView software is an accessory to the Neurovision Nerve Locator/Monitor. When the dedicated USB output of the EMG unit is connected to a personal computer, the PC installed software provides status monitoring data, troubleshooting data, real-time EMG waveforms, and digital backup of all data obtained during clinical use of the device.

    AI/ML Overview

    I am sorry, but the provided text does not contain the information required to answer your request regarding the acceptance criteria, study details, and performance of the Neurovision Nerve Locator Monitor (Nerveana) and EMGView Software. The document is an FDA 510(k) clearance letter, which confirms substantial equivalence to a predicate device and states the indications for use. It does not include:

    • A table of acceptance criteria and reported device performance.
    • Sample sizes for test sets, data provenance, or details about training sets.
    • Information on ground truth establishment, expert qualifications, or adjudication methods.
    • Details about MRMC comparative effectiveness studies or standalone algorithm performance.

    Therefore, I cannot generate the requested table and paragraphs based on the provided input.

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    K Number
    K110140
    Date Cleared
    2011-09-30

    (255 days)

    Product Code
    Regulation Number
    882.1870
    Reference & Predicate Devices
    Why did this record match?
    Device Name :

    NEUROVISION NERVE LOCATOR MONITOR

    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The Neurovision Nerve Locator Monitor is an electronic device consisting of a surgical nerve stimulator and an evoked EMG Monitor with integrated detecting or warning capability. The device is intended to assist the surgeon in locating motor nerves that are at risk in surgical procedures.

    Device Description

    The Neurovision Nerve Locator Monitor Model NV006 is a single channel evoked EMG device for surgical nerve location and monitoring. The device operates exactly as the predicate model NV004. The stimulation range for the predicate device (Model NV004) as a proactive nerve locator is up to 5.0 mA of pulsed nerve stimulation. An accessory cable adds optional "high level" stimulation (Model NV006) ranging from 3.0 to 12 mA.

    AI/ML Overview

    Here's a summary of the acceptance criteria and the study information for the Neurovision Nerve Locator/Monitor Model NV006, based on the provided text:

    Acceptance Criteria and Device Performance

    Feature/CriterionAcceptance Criteria (from NV004/Predicate)Reported Device Performance (NV006)
    Indications for UsePer 510(k) (K954601)Same, plus addition of spinal procedures
    Digital DisplayN/AProvides electrode impedance readings
    FirmwareAssembly LanguageSame
    Logical AlgorithmNeurovision proactive nerve location algorithmSame
    Stim voltage limit38 VSame
    Stimulation OutputMax 5mA, 5 steps, constant currentMax 5mA/12 mA, 10 steps, high range by separate cable (0.1mA to 12mA). Lowest setting 0.1mA conforms to ISO 60601-2-40.
    Stim delivered audio"Tic-tic" audio alertSame
    Stimulation CalibrationNoneAccurate within 5% of delivered current
    EMGVariable gainSame
    ChannelsOneSame
    Electrode off alarm4 beep alarmSame
    Impedance measure>15 k fixed alertActual measurement with digital display
    Audio outSounderSpeaker
    Audio modeFixed alarms onlyAlarms only, raw EMG only, or both (user select)
    Audio alarm toneBeepSame
    VolumeVariable, no zeroSame
    Self-test featureAnalog CAP internalSame
    Event LEDPresentSame
    Battery LEDPresentSame
    Data outAnalog raw EMG outSerial USB out; raw EMG and status data
    Data collectionDigital PC oscilloscopeDedicated digital EMGView oscilloscope software (K102861)
    Cable AssemblyEMG and Stimulation (low)Same, plus additional High-Stimulation cable
    Stimulating Lead WireReusable / user sterilizable wire, disposable sterileDisposable sterile wire
    CircuitryAnalog/digitalSame
    LayoutThru-hole componentsSame, plus surface mount
    IsolationPer designImproved physical isolation; shielding by Opto Isolators
    High Stim LEDN/AActivated when High Stim cable in use
    Power20 v AC Power Supply/Charger; not certified12 V DC Power Supply/Charger; certified
    Nerve Location IndicationDetection circuitry always activeDetection circuitry active only during stimulation. Helps prevent false alarms. (This is a change/improvement)
    Laryngeal Surface electrode – accessoryAccessory sold separately (Cleared through K003745)Cleared through K003745
    Stimulating Hemostat – accessoryAccessory included with System (Cleared through K895676)Cleared through K895676
    Hydrogel Ground – accessoryAccessory sold separately (Cleared through K092744 and K110138)Cleared through K092744 and K110138
    Needle Ground Electrode – accessoryAccessory sold separately (Cleared through K091056)Cleared through K091056

    Study Information:

    1. Sample size used for the test set and data provenance:

      • The document states "Preclinical testing verified the design of this device and that all specified requirements were fulfilled." No specific details about the sample size of a test set (e.g., number of patients, cases, or data points) are provided.
      • The provenance of the data (country of origin, retrospective or prospective) is not explicitly mentioned. Given the nature of a 510(k) for a device like a nerve monitor, most "preclinical testing" would likely involve bench testing, animal models, or potentially limited human use studies that are not described in detail here.
    2. Number of experts used to establish the ground truth for the test set and their qualifications:

      • This information is not provided in the document.
    3. Adjudication method for the test set:

      • This information is not provided in the document.
    4. If a multi-reader multi-case (MRMC) comparative effectiveness study was done, and the effect size of how much human readers improve with AI vs without AI assistance:

      • No MRMC comparative effectiveness study is mentioned. The device is a nerve locator/monitor, not an AI-assisted diagnostic imaging device requiring human reader interpretation in the context of typical MRMC studies.
    5. If a standalone (i.e., algorithm only without human-in-the-loop performance) was done:

      • The "Preclinical testing" mentioned implies standalone testing of the device's functionality. The document highlights various technical specifications and changes from the predicate device that would be subject to such testing (e.g., accuracy of delivered current, impedance measurement, alarm functions, stimulation output). However, no specific details of a formal "standalone" study are provided beyond the general statement.
    6. The type of ground truth used:

      • Given that the preclinical testing verified the design and requirements, the ground truth would likely be based on:
        • Engineering specifications and standards: Conformance to ISO 60601-2-40 for stimulation output, accuracy within 5% of delivered current, and other technical requirements.
        • Functional verification: The device's ability to accurately provide impedance readings, generate anticipated audio alerts, and stimulate within specified ranges.
        • Comparison to predicate device performance: Showing that the NV006 performs at least as well as the NV004 for existing functions and that new functions (like high-stim) meet their design intent.
    7. The sample size for the training set:

      • The device described is a medical instrument (hardware and embedded software) for nerve location and monitoring, not a machine learning or AI algorithm that typically has a "training set" in the conventional sense. The "logical algorithm" is described as the "Neurovision proactive nerve location algorithm," which is "Same" as the predicate device, implying it is a deterministic, rule-based algorithm rather than a learned model. Therefore, the concept of a "training set" as used for machine learning models does not apply here.
    8. How the ground truth for the training set was established:

      • As explained above, the concept of a "training set" for a machine learning model does not apply to this device based on the provided information.
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