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510(k) Data Aggregation

    K Number
    K140932
    Date Cleared
    2015-01-23

    (287 days)

    Product Code
    Regulation Number
    878.4300
    Reference & Predicate Devices
    Predicate For
    N/A
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The Amsel Occluder Device is intended for use in open general surgery procedures on tubular structures or vessels wherever a metal ligating clip is indicated and within the size range of 2.0mm to 7.0mm diameter.

    Device Description

    The Amsel Occluder Device involves the implantation of a mechanical occlusion device that penetrates into and through the target vessel structure and when compressed and locked, clamps the vessel shut.

    The device consists of a metallic clip construct comprised of two compression components and an interlocking implant rod that when compressed together as a unit and locked on either side of a vessel results in occlusion. The delivery device consists of a hand held syringe-like device loaded with the components of the implant construct. The device is for use in general surgical procedures. Once positioned correctly, the occlusion construct is actuated through a series of semiautomatic steps resulting in the two components becoming compressed on either side of the vessel and locked together to occlude the vessel. Once occlusion is achieved, the delivery system, which is mechanically locked to the implant rod, is detached from the implant and the needle is withdrawn leaving the occlusion construct implanted, permanently occluding the vessel.

    AI/ML Overview

    The provided text does not contain detailed acceptance criteria and the results of a study proving the device meets those criteria in a format that allows for a direct table as requested. The text describes a 510(k) submission for the Amsel Occluder Device, which primarily focuses on demonstrating substantial equivalence to predicate devices rather than proving performance against specific quantitative acceptance criteria of the new device.

    However, based on the information provided, I can extract and infer some points regarding performance characteristics and testing without presenting a formal table of acceptance criteria and reported performance, as these specific quantifiable metrics are not explicitly stated for acceptance.

    Here's a breakdown of the requested information based on the document:

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

    This information is not explicitly provided in the document in a quantifiable table format for the Amsel Occluder Device's acceptance criteria. The document outlines the types of performance tests conducted to demonstrate safety and effectiveness and substantial equivalence to predicate devices. It states that "All testing performed demonstrated that the Amsel Occluder is a safe and effective device for vessel and tubular structure occlusion and is considered substantially equivalent to its predicate devices."

    The following are performance characteristics that were verified or evaluated. While these imply underlying acceptance criteria, the specific quantitative targets and results against those targets for the Amsel device itself are not detailed.

    Performance Characteristic (Type of Test)Implied/Reported Performance
    Clip Closure DistanceVerified "to ensure it is within the designed specification" (Specific specification not provided)
    Clip Closure Repeatability and ReliabilityVerified "the repeatable compression and locking of the occluder clip"
    Strain AnalysisPurpose was "to analyze the maximal strain of the clips during occlusion" (Specific results not provided)
    Corrosion Test (ASTM 2129-08, ASTM F3044-14)Verification "that the device does not develop corrosion post implantation." (Implicitly, it passed these tests, no specific metrics provided)
    Performance Evaluation (Simulated Model)Verified "the performance of the Amsel Occluder device in a simulated model" (Specific performance metrics not provided)
    Device to Implant Detachment ForceVerified "that the force required to detach the clip from the delivery system is sufficiently robust to prevent inadvertent detachment of the delivery system from the clip" (Specific force value not provided)
    Holding Pressure EvaluationVerification of "occlusion performance by pressurizing occluded structure through pressures over 700mmHg" (Implicitly, it maintained occlusion at these pressures, no specific metrics provided for failure point or success rate)
    Release Mechanism Function TestingVerified "proper detachment of the delivery system from the implant during operation"
    Deployment Force Testing"The force required to deploy the Amsel Occluder Device was tested in comparison to a predicate. Results were that the device [performed acceptably, though specific results are truncated/unavailable in the provided text]."
    Biocompatibility TestingVerified "that all body contact materials are biocompatible for the contact and duration of contact" (Implicitly, all materials were found biocompatible)
    Animal Study (Holding Pressure and Histology)Evaluated "the safety and effectiveness of the Amsel device in terms of introduction, deployment, usability, and occlusion performance in arteries and veins 2.0mm to 7.0mm" in comparison to a predicate device. (Deemed safe and effective)
    MR Imaging Testing"to support the MR conditional claim in the device's labeling." (Implicitly, it meets the criteria for MR conditional, no specific MR parameters provided)

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

    • Sample Size for Test Set: Not explicitly stated in terms of number of devices or cases for each specific test. The animal study mentions evaluating occlusion performance in "arteries and veins 2.0mm to 7.0mm".
    • Data Provenance: The general nature of the pre-clinical tests and animal studies suggests these were conducted in a controlled, prospective manner. The document does not specify the country of origin of the data, but the manufacturer is Amsel Medical Corp. (Cambridge, MA, USA) and the contact person is in Providence, RI, USA, while another contact is in Kfar-Saba, Israel. This suggests testing could have occurred in either region or elsewhere.

    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)

    • The document does not specify the number or qualifications of experts used to establish ground truth for the test set. For an animal study, typically veterinary surgeons and pathologists would be involved, but details are not provided.

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

    • The document does not specify any adjudication method for the test set results.

    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

    • This information is not applicable/provided. The Amsel Occluder Device is a medical implant (a ligating clip), not an AI diagnostic or assistance tool. Therefore, a multi-reader multi-case (MRMC) comparative effectiveness study comparing human readers with and without AI assistance would not be relevant to this device.

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

    • This information is not applicable/provided. As above, the device is a mechanical implant, not an algorithm.

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

    • For the animal study, performance aspects like "occlusion performance" and "histology" were evaluated. This implies that pathology would be a key component of establishing ground truth for the histological analysis, along with direct observation and possibly pressure measurements (holding pressure evaluation) for occlusion performance.
    • For bench testing, the ground truth would be based on engineering specifications and measurements (e.g., force, distance, corrosion absence).

    8. The sample size for the training set

    • This information is not applicable/provided. The Amsel Occluder is a mechanical device, not an algorithm that requires a training set in the machine learning sense. The "training set" for its development would be iterative design and testing, not a data set for model training.

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

    • This information is not applicable/provided for the same reason as point 8.
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