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510(k) Data Aggregation

    K Number
    K212911
    Date Cleared
    2022-11-18

    (431 days)

    Product Code
    Regulation Number
    884.4530
    Reference & Predicate Devices
    Why did this record match?
    Device Name :

    Konig Mogen Clamp

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

    The Konig Mogen Clamp is an instrument used in a medical procedure to compress the foreskin of the penis during the circumcision of a male infant or child only.

    Device Description

    The Konig Mogen Clamp is an instrument used in a medical procedure to compress the foreskin of the penis during the circumcision of a male infant or child only.
    The Konig Mogen Clamp consists of an arm with a locking mechanism in order facilitate compression on the foreskin. The locking mechanism consists of a lock connected to a lock bar using a pin. The clamp is fixed with a spot welding point, which allows for a maximum opening of 2.5 mm. The edges of the closing area are chamfered and rounded to avoid tissue injury.
    The Konig Mogen Clamp is a reusable instrument that is provided non-sterilyzed by the user. The Konig Mogen Clamp will be validated for use in pre-vacuum steam sterilization.

    AI/ML Overview

    The provided text describes a 510(k) premarket notification for a medical device called the Konig Mogen Clamp. This submission is for demonstrating substantial equivalence to a predicate device, not for establishing clinical efficacy or safety from scratch through the rigorous testing typically performed for novel devices or AI/software as a medical device (SaMD).

    Therefore, the document does not contain the information requested about acceptance criteria, study details (sample size, data provenance, expert ground truthing, MRMC studies, standalone performance, training set details) that would be relevant for an AI/SaMD device.

    The "study that proves the device meets the acceptance criteria" in this context refers to non-clinical bench testing for physical performance, biocompatibility, and cleaning/sterilization validation, as detailed in the "Summary of Non-Clinical Testing" section.

    Here's a breakdown based on the provided document, highlighting why most of the requested information is not applicable:

    1. Table of Acceptance Criteria and Reported Device Performance:

    The document provides a summary of non-clinical tests. The "Acceptance Criteria" for this type of device are typically met by passing standard international and ASTM (American Society for Testing and Materials) tests for surgical instruments. The "Reported Device Performance" is stated as "Test articles met the acceptance criteria" and "The Konig Mogen Clamp was non-toxic," and "No growth at the end of the incubation period." Specific numerical results or detailed acceptance ranges are not provided in this summary.

    StudyDescriptionAcceptance Criteria (Implied)Reported Device Performance
    BiocompatibilityISO 10993-5 Biological Evaluation of Medical Devices - Part 5: Tests for In Vitro Cytotoxicity
    ISO 10993-17:2002 Biological evaluation of medical devices — Part 17: Establishment of allowable limits for leachable substancesMust demonstrate non-toxicity and allowable limits for leachable substances as per ISO 10993 standards."The Konig Mogen Clamp was non-toxic." (Implies compliance with ISO 10993)
    Cleaning & SterilizationISO 17665-1:2006 Moist Heat - Req. for the development, validation, and routine control of a sterilization process for medical devices.
    ISO 15883-2:2006 Req. and tests for washer-disinfectors employing thermal disinfection for surgical instruments (Used for the cleaning and thermal disinfection for reusable surgical instruments)
    ANSI/AAMI ST79: 2017 Guide to steam sterilization and sterility assurance in health care facilitiesMust be effectively cleaned and sterilized to achieve sterility assurance level (SAL). No microbial growth after sterilization."No growth at the end of the incubation period." (Confirms successful sterilization to required standards)
    Performance TestingCustom Grip Test
    ASTM E322-12 Standard Test Method For Analysis Of Low-Alloy Steels And Cast Irons By Wavelength Dispersive X-Ray Fluorescence Spectrometry
    ASTM F1089-10 Standard Test Method for Corrosion of Surgical Instruments
    ASTM E18 - 20 Standard Test Methods for Rockwell Hardness of Metallic MaterialsMaterial composition, grip force, corrosion resistance, and hardness must meet specified ASTM standards for surgical instruments to ensure durability and proper function."Test articles met the acceptance criteria." (Confirms compliance with specified ASTM standards and custom grip test requirements, although specific values are not provided)

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

    This document describes non-clinical bench testing for a physical surgical instrument. The "test set" would refer to the number of physical clamps subjected to the various physical, chemical, and sterilization tests. The document does not specify the exact number of units tested.

    • Sample Size: Not specified for non-clinical tests. Medical device bench testing for performance and cleaning/sterilization typically involves a representative sample size of devices, often in the range of 3-30 units, depending on the test and statistical considerations.
    • Data Provenance: Not applicable in the sense of patient data. The tests are performed on manufactured devices.

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

    Not applicable. "Ground truth" in the context of this device's testing refers to objective measurements against engineering standards (e.g., material composition, hardness, successful sterilization, resistance to corrosion) rather than expert interpretation of patient data. These tests are performed by technicians or engineers.

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

    Not applicable. This refers to establishing consensus among human readers for diagnostic tasks, which is not relevant for this type of device's non-clinical testing.

    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 type of study is relevant for AI or diagnostic imaging devices that assist human readers. The Konig Mogen Clamp is a manual surgical instrument.

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

    Not applicable. This refers to the performance of an AI algorithm, not a manual surgical instrument.

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

    The "ground truth" for this device's non-clinical testing is based on:

    • Pre-defined engineering specifications and ASTM/ISO standard requirements (e.g., chemical composition, hardness values, corrosion resistance, maximum opening, sterilization success).
    • Objective measurements obtained through laboratory testing (e.g., spectral analysis for material, physical force measurements, microbial growth assays).

    8. The sample size for the training set:

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

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

    Not applicable, for the same reason as #8.

    In summary: The provided FDA 510(k) clearance document details the substantial equivalence of a manual surgical instrument and, therefore, focuses on non-clinical performance, safety (biocompatibility), and sterilization validation against established industry standards. It does not involve the types of clinical studies, AI performance metrics, or ground truth establishment relevant for an AI/SaMD device that the questions are implicitly structured to address.

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