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510(k) Data Aggregation

    K Number
    K050399
    Date Cleared
    2005-08-26

    (191 days)

    Product Code
    Regulation Number
    870.2300
    Reference & Predicate Devices
    Predicate For
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The 3160 MRI Patient Monitoring System is intended to monitor vital signs for patients undergoing MRI procedures and to provide signals for synchronization for the MRI scanner.

    The 3160 MRI Patient Monitoring System is intended for use by health care professionals.

    Device Description

    The 3160 MRI Patient Monitoring System is intended to monitor vital signs for patients undergoing MRI procedures and to provide signals for synchronization for the MRI scanner. It is designed to assist clinicians in monitoring patient vital signs in the midst of the dynamic and evolving Magnetic Resonance environment. A combination of wireless communication, radio frequency (RF) shielding, digital signal processing (DSP), and adaptable mounting technologies address the challenges associated with patient monitoring in the MRI area. Built on Invivo's strong heritage in MRI patient vital signs monitoring, the 3160 orovides accurate, continuous, and reliable performance during all phase of MRI applications.

    AI/ML Overview

    Here's a summary of the acceptance criteria and study information for the K050399 device, based solely on the provided text:

    1. Table of Acceptance Criteria and Reported Device Performance:

    ParameterAcceptance Criteria (Specification)Reported Device Performance
    ELECTRICAL AND MECHANICAL CHARACTERISTICS
    Operating Voltage90 to 264 VACPassed all tests (implied by "met the performance requirements")
    Power Consumption30 Volt-Amperes with Charged batteries (48 VA maximum during charging)Passed all tests (implied by "met the performance requirements")
    Battery Capacity> 8 hours (Lithium Ion)Passed all tests (implied by "met the performance requirements")
    Electrical SafetyPer EN 60601-1Passed all tests (explicitly stated in "Summary of Performance Testing")
    Electromagnetic CompatibilityPer EN 60601-1-2Passed all tests (explicitly stated in "Summary of Performance Testing")
    Heart Rate Monitor
    Range/Resolution (Adult)30 to 249 BPM / 1 BPMMet performance requirements (accuracy and precision)
    Range/Resolution (Neonate)30 to 300 BPM / 1 BPMMet performance requirements (accuracy and precision)
    Rate Accuracy (30-200 BPM)± 1%Met performance requirements (accuracy and precision)
    Rate Accuracy (201-250 BPM)± 1.5%Met performance requirements (accuracy and precision)
    Rate Accuracy (251-300 BPM)± 2% (Neonate only)Met performance requirements (accuracy and precision)
    Defibrillator ProtectionAccepts and recovers from discharge up to 5 KVMet performance requirements (accuracy and precision)
    Non-Invasive Blood Pressure Monitoring
    Auto Mode Set IntervalsOFF, 1, 2, 2.5, 3, 5, 10, 15, 20, 30, 45 Min, or 1, 2 and 4 HrsMet performance requirements (accuracy and precision)
    Pop-Off Pressure Level285 +/- 14 mmHgMet performance requirements (accuracy and precision)
    Cuff Inflation Time3 to 20 secondsMet performance requirements (accuracy and precision)
    Pulse Oximetry
    Range0 to 100% saturationMet performance requirements (accuracy and precision)
    Accuracy< 3.0% (60% to 100%)Met performance requirements (accuracy and precision)
    Averaging Period3, 6, or 12 secondsMet performance requirements (accuracy and precision)
    Respiration Monitoring
    Range4 to 150 RPMMet performance requirements (accuracy and precision)
    Resolution1 RPMMet performance requirements (accuracy and precision)
    Accuracy+/- 5% or 2rpm (whichever is greater)Met performance requirements (accuracy and precision)
    Anesthetic Agents
    Halothane Range0.15 to 6.0 Vol.%Met performance requirements (accuracy and precision)
    Halothane Accuracy± 0.15 Vol.% +15% relativeMet performance requirements (accuracy and precision)
    Enflurane Range0.15 to 8.0 Vol %Met performance requirements (accuracy and precision)
    Enflurane Accuracy(0.15-7 %) ± 0.15 Vol% + 15% relativeMet performance requirements (accuracy and precision)
    Isoflurane Range0.15 to 6.0 Vol %Met performance requirements (accuracy and precision)
    Isoflurane Accuracy± 0.15 Vol.% +15% relativeMet performance requirements (accuracy and precision)
    Sevoflurane Range0.15 to 9.0 Vol%Met performance requirements (accuracy and precision)
    Sevoflurane Accuracy(0.15-8%) ± 0.15 Vol% + 15% relativeMet performance requirements (accuracy and precision)
    Desflurane Range0.15 to 20 Vol%Met performance requirements (accuracy and precision)
    Desflurane Accuracy± 0.15 Vol.% +15% relativeMet performance requirements (accuracy and precision)
    Carbon Dioxide Range0 to 10 Vol%Met performance requirements (accuracy and precision)
    Carbon Dioxide Accuracy(measured with agent option) ± 4mmHG or 12%, whichever is greaterMet performance requirements (accuracy and precision)
    Nitrous Oxide Range0 to 99 Vol %Met performance requirements (accuracy and precision)
    Nitrous Oxide Accuracy(measured with agent option) ± 2% Vol + 8% relativeMet performance requirements (accuracy and precision)
    MRI COMPATIBILITY
    Maximum RF EmissionsMaximum -150dB RF noise at MRI Larmor FrequenciesMet performance requirements (accuracy and precision)
    MRI In-Bore MaterialsAll materials are non-magnetic, and do not produce proton-signal emissions during MRIMet performance requirements (accuracy and precision)

    Study Proving Device Meets Acceptance Criteria:

    The document states that "Validation and Verification Testing confirmed that this device operates as designed and intended." It also mentions that "The performance data included in this submission to compare equivalency of the Magnitude 3150/3155 and the Integrated Patient Monitor System 510(k) cleared devices to the modified 3160 MRI Compatible Patient Monitoring System met the performance requirements for accuracy and precision and indicates substantial equivalence to the predicate devices."

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

    • The document does not specify the sample size used for the test set.
    • The document does not provide information regarding the data provenance (e.g., country of origin, retrospective or prospective).

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

    • The document does not mention using experts to establish ground truth for a test set. This appears to be a performance validation based on technical specifications rather than diagnostic interpretation.

    4. Adjudication Method for the Test Set:

    • An adjudication method is not applicable as the testing described focuses on technical performance parameters and not on diagnostic interpretation requiring and comparing human expert opinions.

    5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study:

    • A MRMC comparative effectiveness study was not done. The submission focuses on validating technical performance against established specifications and demonstrating substantial equivalence to predicate devices, not on comparing reader performance with and without AI assistance.

    6. Standalone (Algorithm Only Without Human-in-the-Loop Performance) Study:

    • A standalone study was done, in the sense that the device's performance characteristics (e.g., heart rate accuracy, NIBP accuracy, pulse oximetry accuracy) were tested and validated independently of a human operator's diagnostic interpretation. The data presented covers the intrinsic performance of the device's monitoring functions.

    7. Type of Ground Truth Used:

    • The ground truth used was based on established engineering and medical device performance specifications and standards. For vital signs measurements (e.g., heart rate, SpO2, NIBP), this would typically involve comparison against highly accurate reference instruments or simulated physiological signals that meet the specified accuracy requirements. For electrical safety, EMC, and MRI compatibility, the ground truth refers to conformance with standards like UL-2601-1 and IEC 60601-1-2.

    8. Sample Size for the Training Set:

    • The document does not mention a training set. This device is a patient monitoring system, which typically relies on algorithms and hardware designed to measure physiological parameters based on known physical principles, rather than a machine learning model that requires a training set.

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

    • As there is no mention of a training set, this information is not applicable and not provided in the document.
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