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510(k) Data Aggregation

    K Number
    K070554
    Date Cleared
    2007-09-11

    (196 days)

    Product Code
    Regulation Number
    888.3353
    Reference & Predicate Devices
    Why did this record match?
    Reference Devices :

    K042992, K961939

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

    The Corail AMT Hip Prosthesis is intended for use in total hip arthroplasty and is intended for press fit (uncemented) use. Total hip arthroplasty is intended to provide increased patient mobility and reduce pain by replacing the damaged hip joint articulation in patients where there is evidence of sufficient sound bone to seat and support the components. Total hip replacement is indicated in the following conditions:

    1. A severely painful and/or disabled joint from osteoarthritis, traumatic arthritis, rheumatoid arthritis, or congenital hip dysplasia.
    2. Avascular necrosis of the femoral head.
    3. Acute traumatic fracture of the femoral head or neck.
    4. Failed previous hip surgery including joint reconstruction, internal fixation, arthrodesis, hemiarthroplasty, surface replacement arthroplasty, or total hip replacement.
    5. Certain cases of ankylosis.
      The non-porous Corail AMT Hip Stem is indicated for cementless use only.
    Device Description

    The Corail AMT Hip Prosthesis is a collarless, hydroxyapatite coated titanium alloy femoral stem. The Corail AMT Hip Prosthesis is similar to the previously cleared Corail AMT Hip Prostheses but has a shorter stem length, shorter neck length and smaller cross-section. The Corail AMT Hip Prostheses is contraindicated in patients weighing more than 84 lbs.

    AI/ML Overview

    The provided text is a government regulatory document (510(k) premarket notification summary) for a medical device, the DePuy Corail AMT Hip Prosthesis. This type of document focuses on establishing substantial equivalence to a previously cleared device, rather than providing a detailed study demonstrating performance against specific acceptance criteria.

    Therefore, the document does not contain the kind of information typically found in a clinical study report that would establish acceptance criteria and prove a device meets them in the way the request implies (e.g., using metrics like sensitivity, specificity, or reader improvement with AI).

    Here's an breakdown based on the provided text, highlighting what is (and isn't) present:


    Acceptance Criteria and Device Performance (Not directly addressed in this document)

    This document does not present a table of acceptance criteria and reported device performance in the form of a clinical study outcome. Instead, it relies on the concept of substantial equivalence. The "acceptance criteria" here implicitly refer to demonstrating that the new device is as safe and effective as a legally marketed predicate device.

    The "reported device performance" is not quantified in the way a clinical trial would (e.g., success rates, complication rates from a new study). Rather, it's inferred from the design similarities and in vitro testing (fatigue testing mentioned implicitly).


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

    As stated above, this document does not contain such a table. The "acceptance" is regulatory clearance based on substantial equivalence.


    2. Sample size used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)

    • Not applicable / Not provided. This document does not describe a clinical "test set" in the context of typical AI/medical device performance studies. The basis for substantial equivalence is primarily design similarity, materials, manufacturing methods, and in vitro fatigue testing, not human or 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 / Not provided. Ground truth establishment by experts is not a component of a 510(k) submission based on substantial equivalence for a hip prosthesis, unless there were specific clinical studies that are not detailed here.

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

    • Not applicable / Not provided. Adjudication methods are relevant for studies where multiple observers interpret data; this is not the nature of the evidence presented for this device.

    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

    • No. This is a hip prosthesis, not an AI-assisted diagnostic device. Therefore, no MRMC study or AI-related effectiveness is discussed.

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

    • No. This is a physical medical device, not an algorithm.

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

    • Not applicable in the typical sense. For this device, the "ground truth" for demonstrating safety and effectiveness implicitly relies on the long-term clinical performance and regulatory clearance of the predicate device. The demonstration of substantial equivalence focuses on showing that the new device (Corail AMT Hip Prosthesis) is similar enough to the predicate (previously cleared Corail AMT Hip Prostheses and DePuy S-Rom Femoral Hip Stem) in design, materials, manufacturing, and intended use as to raise no new questions of safety and effectiveness. The in vitro fatigue testing serves as a basis to show mechanical performance.

    8. The sample size for the training set

    • Not applicable / Not provided. This is not an AI/machine learning device.

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

    • Not applicable / Not provided. This is not an AI/machine learning device.

    Summary Regarding the Provided Document:

    The provided text, a 510(k) summary, demonstrates the device meets regulatory requirements by establishing substantial equivalence to existing, legally marketed devices. This process does not typically involve the kind of rigorous clinical studies with explicit acceptance criteria, ground truth establishment by experts, or sample sizes for test/training sets as one would expect for an AI/diagnostic device or a PMA submission for a novel device. The "study" mentioned is primarily a comparison to predicate devices and in vitro fatigue testing to support the claim of equivalence.

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    K Number
    K042127
    Date Cleared
    2004-11-19

    (105 days)

    Product Code
    Regulation Number
    888.3353
    Reference & Predicate Devices
    Why did this record match?
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    Total hip components are indicated for uncemented use in individuals undergoing primary and revision surgery where other treatments or devices have failed in rehabilitating hips damaged as a result of trauma, inflammatory joint disease such as rheumatoid arthritis, or noninflammatory degenerative joint disease (NIDJD) or any of its composite diagnoses such as osteoarthritis; avascular necrosis; traumatic arthritis; slipped capital epiphysis; fused hip; fracture of the pelvis; diastrophic variant; old, remote osteomyelitis with an extended drainage-free period; nonunion, femoral neck fracture and trochanteric fractures of the proximal femur with head involvement that are unmanageable using other techniques; femoral osteotomy, or Girdlestone resection; fracture dislocation of the hip; and correction of deformity. Smith & Nephew Modular Hip components are for single use only.

    Device Description

    The Smith & Nephew Modular Hip consists of primary and revision stems used with porous and HA coated modular sleeves. The stems feature a 12/14 taper and are used with existing Smith & Nephew femoral heads and acetabular components. Modular hip stems and sleeves are manufactured from Ti-6Al-4V conforming to ASTM F 1472 or ASTM F 136.

    AI/ML Overview

    This document is a 510(k) premarket notification for a hip implant, which primarily focuses on establishing substantial equivalence to previously approved devices based on design, materials, and mechanical testing. It does not contain the kind of detailed clinical study data, acceptance criteria, or performance metrics typically seen in AI/software device submissions. Therefore, I cannot provide information for many of the requested fields.

    Here's an analysis based on the provided text:

    1. Table of Acceptance Criteria and Reported Device Performance

    Not applicable for this submission type. The submission relies on mechanical test data and substantial equivalence to predicate devices, rather than clinical performance metrics with pre-defined acceptance criteria for accuracy, sensitivity, or specificity.

    2. Sample size used for the test set and the data provenance

    No test set of clinical data is described or used in this submission. The "test" mentioned refers to mechanical testing.

    3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts

    Not applicable. No clinical ground truth was established for a test set.

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

    Not applicable.

    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. This is not an AI/software device submission.

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

    Not applicable. This is not an AI/software device submission.

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

    Not applicable for clinical performance. For mechanical performance, the "ground truth" would be the engineering specifications and established test methods for hip implants.

    8. The sample size for the training set

    Not applicable. No training set for an algorithm is mentioned.

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

    Not applicable.


    Summary of Relevant Information from the Document:

    • Acceptance Criteria (Implicit for mechanical testing): The device is "capable of withstanding expected in vivo loading without failure" and is "equivalent to devices currently used clinically." This is a general statement about mechanical integrity, not specific quantitative performance metrics.
    • Study Proving Acceptance: "A review of the mechanical test data indicated that the Smith & Nephew Modular Hip is equivalent to devices currently used clinically and is capable of withstanding expected in vivo loading without failure."
    • Sample Size for Mechanical Testing: Not explicitly stated, but mechanical testing of medical devices typically involves a specific number of samples tested to failure or for a specified number of cycles according to relevant ASTM or ISO standards. The document does not provide these details.
    • Data Provenance (Mechanical Testing): The mechanical testing would have been conducted by the manufacturer, Smith & Nephew, Inc.
    • Ground Truth (Mechanical Testing): Established through engineering specifications and industry-standard mechanical test protocols (e.g., ASTM F1472, ASTM F136 mentioned for materials).
    • Substantial Equivalence: The primary "study" for this submission is a comparison to predicate devices, demonstrating similarity in "indications for use, design features, operational principles, and material composition."

    In conclusion, this document describes a traditional medical device submission (hip implant) that relies on mechanical testing and substantial equivalence to predicate devices, not clinical studies with acceptance criteria relevant to AI or software performance.

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