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510(k) Data Aggregation

    K Number
    K203141
    Manufacturer
    Date Cleared
    2021-09-17

    (332 days)

    Product Code
    Regulation Number
    876.1075
    Reference & Predicate Devices
    Why did this record match?
    Device Name :

    Uramix CuraWay Biopsy Needle

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

    The Uramix Curaway Automatic Core Biopsy Instrument is intended for use in obtaining biopsies from soft tissues such as liver, kidneys, prostate, spleen, lymph nodes and various soft tissue tumors. It is not intended for use in bone, or breast.

    Device Description

    The URAMIX CuraWay Automatic Core Biopsy Instrument is a single use only core biopsy device and is individually packaged and sterilized. The packaging is compatible with the product's EO sterilization method. The sterilization validation confirms the packaging is qualified to maintain the sterilization condition of the device. It is available in several needle gauge sizes and lengths. The side and rear actuator buttons are color coded according to the various gauge sizes. The 18 gauge is the one used for current intended marketing, for prostate and kidney biopsies.

    AI/ML Overview

    The URAMIX CuraWay Automatic Core Biopsy Instrument is a medical device intended for obtaining biopsies from soft tissues. The provided text outlines a 510(k) summary, which focuses on demonstrating substantial equivalence to a predicate device rather than providing a detailed study of the device's diagnostic performance against specific acceptance criteria. Therefore, several of the requested sections (e.g., effect size of human readers, standalone performance, training set details) are not applicable or cannot be extracted from the given document as it primarily covers non-clinical engineering and design comparisons.

    Here's an analysis of the provided information:

    1. A table of acceptance criteria and the reported device performance

    The document does not explicitly state "acceptance criteria" in the traditional sense of diagnostic performance metrics (like sensitivity, specificity, or AUC). Instead, it provides a comparison of engineering and functional characteristics to a predicate device, aiming to show substantial equivalence. The "performance" reported is primarily in relation to these comparative metrics.

    Feature/TestAcceptance Criteria (Implied by Predicate/Standards)Reported Device Performance (Subject Device)Outcome
    Intended UseObtaining biopsies from soft tissues (liver, kidney, prostate, spleen, lymph nodes, various soft tissue tumors). Not for bone.Intended for use in obtaining biopsies from soft tissues (liver, kidney, prostate, spleen, lymph nodes, various soft tissue tumors). Not for bone or breast.Similar clinical condition, same intended purpose and site. (Note: Subject device adds "not for breast")
    MaterialStainless steel + ABSShaft: Medical grade stainless steel (SUS304/06Cr19Ni10). Handle/Actuator: Acrylonitrile Butadiene Styrene (ABS).Same material used.
    Types/Sizes (Gauges)14G, 16G, 18G, 20G12G, 14G, 16G, 18G, 20G12G also available, no significant influence on clinical use.
    Length (mm)100mm, 160mm, 200mm, 250mm80mm, 100mm, 130mm, 1600mm, 200mm, 250mmDifferent lengths available, no significant influence on clinical use.
    Slot size18mm18mmSame.
    BiocompatibilityISO 10993-1, ISO 10993-5, ISO 10993-10ISO 10993-1, ISO 10993-5, ISO 10993-10Same standards met.
    Sterilization MethodEO sterilizationEO sterilizationSame.
    Puncture Force ValuePredicate: 5.3NSubject: 2.7NSubject device has lower puncture force.
    Resistance during operationPredicate: noneSubject: noneSame.
    Abnormal noise during operationPredicate: noneSubject: noneSame.
    Connection firmness (needle tube + plastic parts)Predicate: 181 to 230NSubject: 190 to 212NWithin comparable range.
    Ex-vivo tissue studies (sample length & weight)Similar length, weight between predicate and subject.Equivalent tissue samples in terms of length and weight (porcine muscle, liver).Equivalent.
    CytotoxicityPer ISO 10993-5In vitro cytotoxicity performed.Demonstrated compliance.
    Irritation and Skin SensitizationPer ISO 10993-10Tests performed.Demonstrated compliance.
    Systemic ToxicityPer ISO 10883-11Test performed.Demonstrated compliance.
    Sterility TestPer ISO 11138-2, ISO 11737-2Sterility test performed.Demonstrated compliance.
    EO ResidualsPer EN ISO 10993-71.13 mg/deviceDemonstrated compliance.
    Packaging & Shelf-lifePer ISTA2A and ASTM F1980-16 for 3-year shelf life.3-year shelf life.Demonstrated compliance.

    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 mentions "ex-vivo tissue studies (porcine muscle, liver)" which suggests an experimental test set. However, it does not specify the sample size for these ex-vivo studies beyond stating "equivalent tissue samples." The data provenance is implied to be laboratory testing rather than human clinical data. No country of origin for this specific testing data is given, but the manufacturer is based in China. This is not a clinical study on patient data.

    3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g. radiologist with 10 years of experience)

    Not applicable. The comparisons and tests described are for physical and material characteristics of the device, not diagnostic performance requiring expert interpretation of results.

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

    Not applicable. This device is not an imaging or diagnostic AI device requiring adjudication of human expert interpretations. The testing focuses on mechanical and material properties.

    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. The URAMIX CuraWay Automatic Core Biopsy Instrument is a physical medical instrument (a biopsy needle), not an AI device or an imaging/diagnostic AI software. Therefore, an MRMC study comparing human readers with and without AI assistance is irrelevant to this device.

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

    Not applicable. This is not an algorithm or AI-driven device.

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

    For the ex-vivo tissue studies, the ground truth was implied by the objective measurements of sample length and weight taken from the porcine tissues. For other non-clinical tests (biocompatibility, sterility, etc.), the ground truth is compliance with recognized international standards (e.g., ISO, ASTM).

    8. The sample size for the training set

    Not applicable. This is not an AI/machine learning device that requires a training set.

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

    Not applicable. No training set is relevant for this device.

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