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510(k) Data Aggregation

    K Number
    K083467
    Device Name
    REBOUND HRDV
    Date Cleared
    2009-04-23

    (150 days)

    Product Code
    Regulation Number
    878.3300
    Reference & Predicate Devices
    Predicate For
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    REBOUND HRD® V is intended to assist in the repair and/or reinforcement of hernia or other soft tissue defects where weakness exists and where the support of a nonabsorbable material is preferred.

    Device Description

    The REBOUND HRD V (Hernia Repair Device) is a self-expanding nitinol framed surgical mesh designed for placement directly over the hernia defect so that there is at least 4 cm of circumferential overlap of the hernia defect by the device. The REBOUND HRD V conforms to the anatomy while providing stability. The super-elastic multi-stranded nitinol frame allows the device to be folded into a loading cannula (supplied in the product package) and inserted laparoscopically through an appropriately sized access port. It may also be placed via an open incisional approach. The REBOUND HRD V is supplied sterile and is designed as a single use device. It is manufactured in three sizes to accommodate different hernia types, anatomies and surgeon preference.

    AI/ML Overview

    The provided text is a 510(k) summary for the REBOUND HRD® V surgical mesh. This document does not contain the detailed technical study information typically found in a device's design verification and validation reports. Therefore, I cannot fully answer your request.

    Here's what I can extract and what is missing based on the provided text:

    Acceptance Criteria and Reported Device Performance (Missing)

    The document states: "Design verification and validation activities were performed as identified during risk analysis." However, it does not explicitly list the acceptance criteria for these activities or the reported device performance metrics against those criteria. It only concludes that the device is substantially equivalent to the predicate.

    Missing Information/Cannot Answer based on provided text:

    • A table of acceptance criteria and the reported device performance: This information is not present. The document summarizes the device's characteristics and its equivalence to a predicate, but doesn't detail performance metrics.
    • Sample size used for the test set and the data provenance (e.g., country of origin of the data, retrospective or prospective): Not mentioned in the provided text.
    • 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 mentioned. This type of information would be relevant for devices that rely on expert review for ground truth, which this surgical mesh does not appear to.
    • Adjudication method (e.g., 2+1, 3+1, none) for the test set: Not applicable as this is not a diagnostic device relying on expert adjudication of results.
    • 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 a medical device (surgical mesh), not an AI-powered diagnostic tool.
    • If a standalone (i.e., algorithm only without human-in-the-loop performance) was done: Not applicable. This is a medical device (surgical mesh), not an AI algorithm.
    • The type of ground truth used (expert consensus, pathology, outcomes data, etc.): Not mentioned. For a surgical mesh, ground truth for performance would typically involve biomechanical testing, animal studies, or clinical outcomes (which are implied but not detailed).
    • The sample size for the training set: Not applicable as this is not an AI/machine learning device.
    • How the ground truth for the training set was established: Not applicable as this is not an AI/machine learning device.

    What the document does indicate:

    • Device Type: Surgical mesh (REBOUND HRD® V)
    • Intended Use: To assist in the repair and/or reinforcement of hernia or other soft tissue defects where weakness exists and where the support of a nonabsorbable material is preferred.
    • Predicate Device: REBOUND HRDTM (K063671, K080393)
    • Conclusion for Equivalence: The REBOUND HRD V is substantially equivalent to the predicate in regards to indications for use, basic operating principle, materials, sterilization, packaging, and shelf-life.
    • Study Type Implied: Design verification and validation activities were performed according to design control requirements and risk analysis. These would typically include bench testing for mechanical properties, biocompatibility, sterility, and possibly animal studies, but the specifics are not provided.
    • Data Provenance (Implicit): The studies would have been conducted by Minnesota Medical Development, Inc. or contractors. The country of origin of data is not specified, but the applicant is based in the USA. The studies would be considered prospective for the device development, but the clinical implications are evaluated against existing predicate devices.
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    K Number
    K063671
    Device Name
    REBOUND HRD
    Date Cleared
    2007-08-16

    (248 days)

    Product Code
    Regulation Number
    878.3300
    Reference & Predicate Devices
    Predicate For
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    REBOUND HRD™ is intended to assist in the repair and/or reinforcement of hernia or other soft tissue defects where weakness exists and where the support of a nonabsorbable material is preferred.

    Device Description

    The Rebound HRD™ (Hernia Repair Device) is a self-expanding Nitinol framed/surgical mesh designed for the repair of both inguinal and ventral hernias. The Rebound HRD™ is designed for placement, between the fascia and fully closed peritoneum, so that it covers the direct and indirect space with at least a 15mm margin beyond the edges of the hernia defect. The Rebound HRDTM conforms to the anatomy while providing stability; eliminating the need for anchoring. The super-elastic, multi-strand, Nitinol frame allows the device to be folded into the supplied 10mm loading cannula (supplied in the product package) and inserted laparoscopically through a 10-12mm access port. it may also be placed via an open incision approach using the same dissection and positioning methods described for the laparoscopic technique. The Rebound HRD™ is supplied sterile and is designed as a single use device. It is manufactured in several shapes to accommodate different hernia types, anatomies and surgeon preference.

    AI/ML Overview

    The provided text does not contain acceptance criteria for a device performance study, nor does it describe a study that directly proves the device meets specific performance acceptance criteria.

    Instead, this document is a 510(k) summary for a medical device (REBOUND HRD™ hernia mesh device) seeking substantial equivalence to predicate devices. The summary outlines the device's description, indications for use, and a summary of testing conducted to support its safety and substantial equivalence, but not a study designed to meet specific performance "acceptance criteria" in the way a clinical trial or performance study report would.

    Here's a breakdown of the requested information based on what is available and what is not available in the provided text:


    1. Table of Acceptance Criteria and Reported Device Performance

    Acceptance Criteria (Not Specified in Document)Reported Device Performance (Summary of Testing)
    (No specific quantitative or qualitative acceptance criteria were provided for device performance in the document.)- Biocompatibility: Confirmed that processing and additional materials do not alter the excellent biocompatibility of the basic mesh.
    - Weld Testing: Performed. (No specific results or acceptance criteria given).
    - Burst Strength Testing (on assembly): Performed. (No specific results or acceptance criteria given).
    - Deployment: Device successfully deployed through a cannula. (No specific success rate or criteria given).
    - Fatigue Testing: Performed. (No specific results or acceptance criteria given).
    - MRI Compatibility: Confirmed MRI compatibility. (No specific details of compatibility criteria or results given).
    - Animal Testing (In-vivo): Demonstrated the device will stay in place, will stay together when implanted, can be detected via X-ray, and has tissue response typical for this type of implant. (No specific quantitative acceptance criteria or detailed results given).
    - Instructions for Use: Evaluated. (No specific evaluation method or criteria given).

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

    The document describes several types of testing (biocompatibility, mechanical, in-vivo animal testing, MRI compatibility) but does not specify sample sizes for any of these tests. It also does not mention a "test set" in the context of human clinical data or imaging data. The testing described appears to be primarily bench testing and animal studies, not human clinical trials. Therefore, data provenance (country of origin, retrospective/prospective) is not applicable in the context of human data.


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

    Not Applicable. The document does not describe a study involving expert assessment of a "test set" to establish ground truth for a diagnostic or AI device. The testing mentioned (biocompatibility, mechanical, animal) involves laboratory measurements and observations by technical and scientific personnel, not expert interpretation of clinical cases.


    4. Adjudication Method for the Test Set

    Not Applicable. As there is no described test set requiring expert interpretation and ground truth establishment, no adjudication method is mentioned.


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

    No. The document does not describe an MRMC comparative effectiveness study. This type of study is typically performed for diagnostic imaging devices to evaluate the impact of an AI algorithm on human reader performance. The Rebound HRD™ is a hernia mesh device, not an imaging or diagnostic AI device.


    6. Standalone (Algorithm Only) Performance Study

    No. The Rebound HRD™ is a physical medical device (hernia mesh), not an algorithm or AI system. Therefore, a standalone algorithm performance study is not applicable.


    7. Type of Ground Truth Used

    The concept of "ground truth" as typically applied in AI/diagnostic studies (e.g., pathology, outcomes data) is not directly applicable to the testing described for this physical device. The "truth" for the various engineering and biological tests performed would be established by:

    • Biocompatibility: Standardized assays and histological examination, comparing against established norms for biocompatible materials.
    • Mechanical Testing: Measured physical properties (weld strength, burst strength, fatigue life) against design specifications or engineering standards.
    • Animal Testing: Direct observation during implantation, gross pathology, and histology of explanted tissue. This provides "actual" biological response.
    • MRI Compatibility: Measurements of susceptibility artifacts, heating, and other parameters in an MRI environment according to standards.

    8. Sample Size for the Training Set

    Not Applicable. The Rebound HRD™ is a physical medical device; it does not involve an AI algorithm or a "training set" in the computational sense.


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

    Not Applicable. As there is no training set mentioned, this question is not relevant to the provided text.

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