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510(k) Data Aggregation

    K Number
    K131388
    Date Cleared
    2013-09-26

    (135 days)

    Product Code
    Regulation Number
    868.5450
    Reference & Predicate Devices
    Predicate For
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The Transcend Heated Humidifier is indicated for the humidification of the air delivered from a compatible Transcend positive airway pressure therapy device. The Humidifier is intended for single patient re-use in the home environment and in a hospital/institutional environment. The Humidifier is for use only as recommended by a physician.

    Device Description

    The Transcend Heated Humidifier is a humidifier that is designed to humidify the air delivered to the airway during positive airway pressure (PAP) therapy with a compatible Transcend PAP device.

    AI/ML Overview

    The provided document describes the acceptance criteria and supporting studies for the Transcend Heated Humidifier, a medical device for humidifying air during positive airway pressure (PAP) therapy.

    1. Table of Acceptance Criteria and Reported Device Performance

    The acceptance criteria for the Transcend Heated Humidifier are primarily based on compliance with recognized consensus standards and direct comparison to a predicate device (ResMed HumidAire 2i™). The document presents a comparison of various characteristics, some of which serve as performance criteria.

    Acceptance CriterionSpecifics/StandardReported Device Performance (Transcend Heated Humidifier)Comparison to Predicate / Compliance
    Standards Compliance
    Electrical SafetyIEC 60601-1CompliantCompliant
    Electromagnetic CompatibilityIEC 60601-1-2Compliant with IEC 60601-1-2Identical (Predicate also compliant)
    UsabilityIEC 60601-1-6Not explicitly stated, but implied compliance through substantial equivalenceImplied compliance
    Home Health Care EnvironmentIEC 60601-1-11Not explicitly stated, but implied compliance through substantial equivalenceImplied compliance
    Respiratory HumidifiersISO 8185:2007Compliant (Stated for multiple parameters)Confirmed compliance, predicate's compliance unknown
    Biological EvaluationISO 10993-1Biocompatible: YesIdentical
    Risk ManagementISO 14971Implied compliance through risk assessmentsImplied compliance
    Performance Characteristics (compared to predicate or ISO 8185)
    Indications for UseHumidification of air for compatible Transcend PAP device, single patient re-use in home/hospitalThe Transcend Heated Humidifier is indicated for the humidification of the air delivered from a compatible Transcend positive airway pressure therapy device. The Humidifier is intended for single patient re-use in the home environment and in a hospital/institutional environment.Similar (Transcend is single-patient vs. predicate's multi-patient option).
    Intended Population of UseAdultAdultIdentical
    Compatible DevicesTranscend PAP device and associated accessoriesTranscend PAP device and associated accessoriesSimilar (both are manufacturer-specific)
    DisinfectionNone (single patient re-use only)Differs from predicate (which should be disinfected between patients)
    CleaningDistilled water using a mild detergentDistilled water using a mild detergentIdentical
    SterilizationNot sterilizedNot sterilizedIdentical
    Pressure RegulationDetermined by compatible PAP deviceDetermined by compatible PAP deviceIdentical
    Working Pressure Range4-20 cm H₂O4-20 cm H₂OIdentical
    Humidifier Settings1-5Similar (Predicate has 1-6 settings)
    Inspiratory / Expiratory Pressure DropMeets ISO 8185 requirements0.375 cmH₂O at 50 L/minMeets ISO 8185
    Gas Leak at Max Operating PressureMeets ISO 8185 requirements4.85 L/minMeets ISO 8185
    Sound Power Level at 10 cm H₂O static pressureMeets ISO 8185 requirements37 dBMeets ISO 8185
    Maximum Heater Plate TemperatureMeets ISO 8185 requirements131 °FMeets ISO 8185 (Predicate: 167°F)
    Maximum Output Humidity>95%>95%Similar (Predicate: 95%)
    Maximum Gas TemperatureMeets ISO 8185 requirements77 °FMeets ISO 8185
    Water CapacityEnough water to last a minimum of 8 hours325 mlSimilar (Predicate: 400ml; both intended for 8+ hours)
    Operating TemperatureBased on compatible PAP device+41°F to +95°FSimilar (Predicate: +41°F to +104°F)
    Operating HumidityBased on compatible PAP device10 - 80% relative humidity, non-condensingSimilar (Predicate: 10-95% RH)
    Shipping/Storage Temperature-4° F to +140° FIdentical
    Gas Inlet Temperature RangeBased on compatible PAP device+41°F to +95°FSimilar (Predicate: +41°F to +104°F)
    Shipping/Storage Humidity10 - 90% relative humidity, non-condensingSimilar (Predicate: 15-95% RH)
    Power Supply100-240 VAC, 50/60 Hz100-240 VAC, 50/60 HzIdentical
    IEC 60601-1 ClassificationType BF or CF (ISO 8185 section 6.8.2-14)Type BFSubject device is compliant

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

    The document does not detail specific sample sizes for particular performance tests. The studies conducted are described as "Device design was qualified through the following tests and assessments" which implies these were bench and lab-based tests, not human studies. Therefore, typical "sample sizes" (as in patient data) and "data provenance" (e.g., country of origin, retrospective/prospective) are not applicable in the context of this device's premarket submission, which focuses on engineering, safety, and performance characteristics rather than clinical diagnostic accuracy. The studies performed are:

    • Electrical Safety
    • Electromagnetic Compatibility
    • Biocompatibility Assessment
    • Cleaning Validation
    • Software Validation
    • Packaging and Shipping
    • Performance: physical (cycling), resistance to flow, spillage, flow sensing, sound power level, humidification output, out of water shutdown, temperature, runtime, warm-up duration, and reservoir gas leak

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

    This section is not applicable. The device relies on physical and electrical performance data, and compliance with engineering standards (e.g., ISO 8185, IEC 60601-1). Ground truth is established by the specifications defined in these standards and by direct laboratory measurements, not by expert interpretation of patient data.

    4. Adjudication Method for the Test Set

    This section is not applicable. Adjudication methods (e.g., 2+1, 3+1) are typically used in clinical studies where multiple experts evaluate ambiguous cases to reach a consensus for ground truth. This submission focuses on engineering and performance testing, where outcomes are determined by objective measurements against predefined criteria.

    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 typically performed for diagnostic devices where human readers (e.g., radiologists) interpret images or data, and their performance with and without AI assistance is compared. The Transcend Heated Humidifier is a therapeutic accessory, not a diagnostic device involving human interpretation of complex data.

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

    This section is not applicable in the typical sense of AI algorithms. The "device" itself operates "standalone" in its function as a humidifier, based on its internal programming and hardware. However, it's not an AI algorithm in the context of data analysis or diagnostic support where a "human-in-the-loop" would be relevant. The software validation mentioned ensures the device's internal algorithms and controls function correctly, which is a standalone performance test.

    7. The Type of Ground Truth Used

    The ground truth for the device's performance is based on:

    • Engineering Standards and Specifications: Metrics defined by standards such as ISO 8185 (e.g., maximum output humidity, pressure drop, gas leak, sound power level, temperatures).
    • Predicate Device Characteristics: Direct comparison of physical, functional, and safety attributes against a legally marketed predicate device.
    • Laboratory Measurements: Objective measurements of the device's performance against the specified criteria (e.g., humidification output, temperature, water capacity).

    8. The Sample Size for the Training Set

    This section is not applicable. This device is not an AI/machine learning model where a "training set" of data would be used to develop an algorithm. Its design and validation are based on traditional engineering principles and testing.

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

    This section is not applicable as there is no "training set" in the context of this device.

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