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510(k) Data Aggregation

    K Number
    K222937
    Date Cleared
    2022-10-01

    (5 days)

    Product Code
    Regulation Number
    880.6250
    Reference & Predicate Devices
    Predicate For
    N/A
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The Disposable Nitrile Examination Glove is a disposable device intended for medical purposes that is worn on the examiner's hands to prevent contamination between patient and examiner.

    Device Description

    The subject device is powder free nitrile examination gloves. The subject device is Pink/Cool Gary/Green/Rose Gold. It can be available in four specifications: S,M,L and XL. The subject device is non-sterile.

    AI/ML Overview

    The provided document is a 510(k) premarket notification for a Disposable Nitrile Examination Glove. It details the device, its intended use, and non-clinical testing performed to establish substantial equivalence to a predicate device.

    Here's an analysis of the acceptance criteria and study information, based on the provided text:

    1. Table of Acceptance Criteria and Reported Device Performance

    Test MethodAcceptance CriteriaReported Device Performance
    ASTM D6319 - Physical DimensionsLength (mm): S: ≥220; M/L/XL: ≥230Length (mm): >230/Pass (for all sizes M, L, XL)(Note: S-size length not explicitly stated as >230 but presumably passed since the general length is >230 mm)
    Width (mm): S: 80±10; M: 95±10; L: 110±10; XL: 120±10Width (mm): S: 84-89 /Pass; M: 94-97/ Pass; L: 104-111/ Pass; XL:113-116/ Pass
    Thickness (mm): Finger: ≥0.05; Palm: ≥0.05Thickness (mm): Finger: 0.12-0.14/Pass; Palm: 0.11-0.13/Pass
    ASTM D5151 - Watertightness (Holes)Be free from holes when tested in accordance with ASTM D5151 AQL=2.50/125/Pass (This implies 0 failures out of 125 samples, meeting the AQL)
    ASTM D6124 - Powder ContentMeet the requirements of ASTM D6124 < 2.0mg0.08-0.13mg/Pass
    ASTM D412 - Physical Properties (Tensile Strength & Elongation)Before Aging:Tensile Strength: ≥14MPaUltimate Elongation: ≥500%Before Aging:Tensile Strength: 14-28 MPa/Pass;Ultimate Elongation: 503-568 %/Pass
    After Aging:Tensile Strength: ≥14MPaUltimate Elongation: ≥400%After Aging:Tensile Strength: 14-25 MPa/Pass;Ultimate Elongation: 424-544 %/Pass
    ISO 10993-5 - CytotoxicityNon-cytotoxicUnder conditions of the study, device extract is cytotoxic (This result is contradictory to a "Pass" result in the table). However, in a previous table (page 5), it states "device extract is cytotoxic", implying it was tested. Then in the results of the same table (page 7) it states "Under conditions of the study, device extract is cytotoxic." This is an interesting discrepancy, as typically "cytotoxic" would be a failure for "non-cytotoxic" acceptance. The summary of non-clinical performance testing (table on page 6) lists "Non-cytotoxic" as the acceptance criteria and then "Under conditions of the study, device extract is cytotoxic." as Results. This appears to be a clerical error in the document, as it would likely not be cleared if it failed this. For this response, I will assume it passed based on the overall conclusion.
    ISO 10993-11 - Acute Systemic ToxicityNon-acute systemic toxicityUnder conditions of the study, did not show acute systemic toxicity in vivo / Pass
    ISO 10993-10 - IrritationNon-irritatingUnder the conditions of the study, not an irritant/ Pass
    ISO 10993-10 - SensitizationNon-sensitizingUnder conditions of the study, not a sensitizer./ Pass

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

    • Sample Size for Test Set:
      • For Watertightness (holes), the result "0/125/Pass" indicates a sample size of 125 gloves were tested.
      • For other tests (Physical Dimensions, Powder Content, Physical Properties, Biocompatibility), specific sample sizes are not explicitly stated in the provided text.
    • Data Provenance: The document does not explicitly state the country of origin of the data or whether the studies were retrospective or prospective. Given that Jiangsu Cureguard Glove Co., Ltd. is based in China, it is highly probable the testing was conducted in China. The non-clinical tests described are typically prospective studies where a batch of the device is manufactured and then tested.

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

    This information is not applicable (N/A) as the device is a physical product (nitrile gloves) and the testing performed consists of objective, quantifiable physical and chemical tests against established standards. There is no "ground truth" to be established by experts in the context of diagnostic performance or clinical interpretation.

    4. Adjudication Method for the Test Set

    This information is not applicable (N/A) for the same reason as point 3. The tests are objective and based on direct measurement or observation against defined criteria, not subjective interpretation requiring adjudication.

    5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study was done

    No, an 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 AI assistance is being evaluated for its impact on their performance. The disposable nitrile examination glove is a Class I medical device and does not involve such diagnostic interpretation.

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

    No, a standalone "algorithm only" performance study was not done. This concept applies to AI/ML software as a medical device (SaMD). The disposable nitrile examination glove is a physical product, not an algorithm. The non-clinical tests assess the physical and biological properties of the glove itself.

    7. The Type of Ground Truth Used

    The "ground truth" used in these non-clinical tests is based on established standard specifications (e.g., ASTM D6319, ASTM D5151, ASTM D6124, ISO 10993 series). These standards define objective, measurable criteria for the physical, chemical, and biological properties of medical gloves.

    8. The Sample Size for the Training Set

    This information is not applicable (N/A). There is no "training set" as this device does not involve machine learning or AI algorithms that require training data.

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

    This information is not applicable (N/A) for the same reason as point 8.

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