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510(k) Data Aggregation

    K Number
    K172368
    Date Cleared
    2018-04-05

    (241 days)

    Product Code
    Regulation Number
    878.4400
    Reference & Predicate Devices
    Why did this record match?
    Applicant Name (Manufacturer) :

    Gunter Bissinger Medizintechnik GmbH

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

    Bipolar Micro-Coagulation Forceps are intended to remove tissue and control bleeding.

    Device Description

    Bipolar Micro-Coagulation Forceps are electrosurgical tools available with different handles and different tip designs. The Bipolar Micro-Coagulation Forceps can be connected through an appropriate bipolar cable to an electrosurgical generator. The Bipolar Micro-Coagulation Forceps can be disassembled for cleaning and sterilization. The Bipolar Micro-Coagulation Forceps are delivered in unsterile condition and have to be sterilized prior to each use.

    AI/ML Overview

    This document is a 510(k) premarket notification for the "Bipolar Micro-Coagulation Forceps" by Gunter Bissinger Medizintechnik GmbH. It describes the device and demonstrates its substantial equivalence to a predicate device, K150959, Sutter Bipolar Forceps - Calvian.

    Here's an analysis of the acceptance criteria and the study that proves the device meets them, based on the provided text:

    1. Table of Acceptance Criteria and Reported Device Performance

    The acceptance criteria are not explicitly stated as quantitative metrics in the provided document, which is typical for a 510(k) for a Class II electrosurgical device where substantial equivalence to a predicate is the primary goal. Instead, equivalence in various characteristics is demonstrated. The "Result" column typically indicates "Substantially Equivalent," implying that the device's performance aligned with the predicate or relevant standards to demonstrate safety and effectiveness.

    Criteria CategorySpecific CharacteristicPredicate Device Performance / StandardReported Device Performance / ComplianceResult
    Indications for UseIntent to remove tissue and control bleedingIntended to remove tissue and control bleedingIntended to remove tissue and control bleedingSubstantially Equivalent
    Regulation Number878.4400878.4400878.4400Substantially Equivalent
    Product CodeGEIGEIGEISubstantially Equivalent
    Device ClassIIIIIISubstantially Equivalent
    Prescription / OTCPrescriptionPrescriptionPrescriptionSubstantially Equivalent
    Device DesignElectrosurgical tools with different handles & tip designsElectrosurgical tool with different handle styles & tip sizesElectrosurgical tools with different handles & different tip designsSubstantially Equivalent
    MaterialStainless Steel, Plastic MaterialStainless Steel, Plastic MaterialStainless Steel, Plastic MaterialSubstantially Equivalent
    Tip Size [mm]0.35 – 2.80.7 - 2.50.35 – 2.8Substantially Equivalent
    Shaft Length [mm]151815Substantially Equivalent
    HF-modeBipolarBipolarBipolarSubstantially Equivalent
    Maximum peak voltage300 Vp500 Vp300 VpSubstantially Equivalent
    Delivered ConditionUnsterileUnsterileUnsterileSubstantially Equivalent
    Single UseNo (Reusable)No (Reusable)No (Reusable)Substantially Equivalent
    Safety StandardMeets IEC 60601-2-2Meets IEC 60601-2-2Meets IEC 60601-2-2Substantially Equivalent
    BiocompatibilityComplies with ISO 10993-1 (Cytotoxicity, Sensitization, Irritation)Complies with ISO 10993-1 (Cytotoxicity, Sensitization, Irritation)Passed (Evaluation proofs biological safety)Substantially Equivalent
    Electrical SafetyComplies with IEC 60601-1 and IEC 60601-2-2 (Mechanical stability, Insulation, HF leakage/electrical strength, Power frequency)Complies with IEC 60601-1 and IEC 60601-2-2Passed all performed testsSubstantially Equivalent
    Sterilization/Shelf LifeValidated cleaning & sterilization proceduresValidated cleaning & sterilization proceduresValidated cleaning & sterilization proceduresSubstantially Equivalent
    Thermal EffectsThermal damage comparable to predicateThermal damage comparable to predicateFunctions and characteristics did not display any major differenceSubstantially Equivalent

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

    • Sample Size (Test Set): The document mentions that "Three different tissue types were used" for evaluating thermal effects. However, it does not specify the number of samples or repetitions for each tissue type, neither does it mention specific patient data. For the other tests (Biocompatibility, Electrical Safety, Sterilization), the sample size typically refers to the number of devices tested to meet the respective standard, which is not explicitly quantified here beyond stating the tests were performed.
    • Data Provenance: Not explicitly stated. Given the applicant is in Germany, it's highly likely the testing was conducted in Germany or a location deemed acceptable for gaining regulatory approval. The study type is not specified as retrospective or prospective, but as it involves testing of the physical device it would inherently be "prospective" for the specific tests performed (e.g., electrical safety, thermal effects).

    3. Number of Experts Used to Establish Ground Truth and Qualifications

    This information is not applicable to this type of device submission. The submission is for an electrosurgical tool, not an AI/diagnostic device that requires expert review for ground truth establishment. The ground truth for this device is based on physical performance measurements, compliance with international standards (IEC, ISO), and direct comparison to a legally marketed predicate device.

    4. Adjudication Method for the Test Set

    This information is not applicable for the same reason mentioned above. Adjudication methods like 2+1 or 3+1 are relevant for studies involving human interpretation (e.g., reading medical images) to establish a consensus ground truth.

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

    This information is not applicable. An MRMC study is relevant for evaluating the performance of diagnostic tools or AI systems where human readers interpret cases. This submission is for a physical surgical instrument.

    6. Standalone Performance Study (Algorithm Only)

    This information is not applicable. This device is a physical surgical instrument, not an algorithm.

    7. Type of Ground Truth Used

    The "ground truth" for this device's performance is established through:

    • Compliance with Recognized Standards: Meeting the requirements of IEC 60601-1, IEC 60601-2-2 for electrical safety, and ISO 10993-1 for biocompatibility. These standards define the acceptable performance and safety limits.
    • Direct Comparison to a Legally Marketed Predicate Device: The key "ground truth" or benchmark here is the performance and characteristics of the Sutter Bipolar Forceps - Calvian (K150959). The study aimed to demonstrate that the proposed device performs "as intended" and is "substantially equivalent" to the predicate.
    • Laboratory Testing: Directly measuring physical properties, electrical characteristics, and thermal effects in a controlled environment.

    8. Sample Size for the Training Set

    This information is not applicable. There is no "training set" for this type of medical device as it does not involve machine learning or AI.

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

    This information is not applicable as there is no training set.

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    K Number
    K033177
    Date Cleared
    2004-03-11

    (162 days)

    Product Code
    Regulation Number
    884.1720
    Reference & Predicate Devices
    N/A
    Why did this record match?
    Applicant Name (Manufacturer) :

    GUNTER BISSINGER MEDIZINTECHNIK GMBH

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

    Bipolar tissue coagulation in gynecologic and laparoscopic surgical procedures.

    Device Description

    The POWERGRIP coagulation forceps are designed for grasping, cutting and bipolar coagulation in minimally invasive surgery. The POWERGRIP handle actuates the jaws of the electrode inserts by means of a double-hinge and serves as the point of attachment for accessories (shafts, inserts, cables).

    AI/ML Overview

    The provided text is a 510(k) summary for the Guenter Bissinger Medizintechnik GmbH POWERGRIP Bipolar Coagulation Forceps. It's a regulatory document for a medical device and describes modifications to an existing device, rather than a study proving performance against acceptance criteria in the typical sense of a clinical trial or performance study.

    Based on the document, here's what can be extracted and what information is not available:

    1. Table of Acceptance Criteria and Reported Device Performance

    This document does not contain a table of acceptance criteria or reported device performance in the way a clinical study report would. Instead, it makes claims of substantial equivalence to a predicate device and states that modifications improve handling and do not affect safety or effectiveness.

    Acceptance Criteria (Implied)Reported Device Performance (Claimed)
    Safety and Effectiveness not adversely affected by modification"THIS CHANGE DOES NOT AFFECT THE SAFETY OR EFFECTIVENESS OF THE DEVICE."
    Improved handling control for direction and accuracy"To improve handling control with respect to direction and accuracy of forceps during surgical procedures"
    Easier, faster, more effective disassembly and re-assembly for exchange and reprocessing"To make disassembly and re-assembly easier, faster and more effective for exchange of electrode jaws during procedure and for reprocessing."
    Surgeon's control of electrode jaws improved"the internal mechanical connection to the jaws improves the surgeon's control of the electrode jaws"
    Well-adjustable opening and closing of jaws"assures well adjustable opening and closing of the jaws with very high pressure during grasping and cutting and high precision in tissue coagulation."
    No new risk for patient or surgeon"The device modification introduces no new risk for patient or surgeon and enhances device safety and effectiveness when compared to the predicate."
    Compliance with industry standards"BISSINGER certifies compliance with all appropriate industry standards and the validation of methods and processes covered by these standards."
    UL Compliant (implied acceptance criteria from predicate)UL-544
    ISO Compliant (implied acceptance criteria from predicate)ISO 9001

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

    This document does not describe a test set or a study involving a particular sample size of cases/patients. The submission is for a modification to an existing device and relies on showing substantial equivalence to a predicate device and that the change does not adversely affect safety or effectiveness. There's no mention of country of origin or whether hypothetical data would be retrospective or prospective.

    3. Number of Experts Used to Establish Ground Truth and Qualifications

    This document does not describe a study involving experts to establish ground truth. The claims made are based on design rationale and comparison to a predicate device.

    4. Adjudication Method for the Test Set

    Not applicable, as no test set or study with expert ground truth establishment is described.

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

    No, an MRMC comparative effectiveness study was not done or described in this document. The submission is a regulatory filing for a device modification, focusing on substantial equivalence and design changes, not a comparative clinical effectiveness study.

    6. Standalone (Algorithm Only) Performance Study

    Not applicable. This is a physical medical device (coagulation forceps), not an algorithm or AI.

    7. Type of Ground Truth Used

    Not applicable. No ground truth in the context of a performance study is mentioned. The "ground truth" for this regulatory submission is the substantial equivalence to the predicate device and the engineering/design justification that the modifications do not compromise safety or effectiveness.

    8. Sample Size for the Training Set

    Not applicable. This is a physical medical device, not a machine learning model, so there is no training set mentioned or relevant.

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

    Not applicable. No training set is mentioned.

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