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510(k) Data Aggregation

    K Number
    K142525
    Device Name
    PK Lap Loop
    Date Cleared
    2014-11-21

    (74 days)

    Product Code
    Regulation Number
    884.4150
    Reference & Predicate Devices
    Why did this record match?
    Reference Devices :

    K141225, K081954, K111059

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

    The Bipolar Laparoscopic Loop is a 5mm bipolar electrosurgical device. The device is intended to be used for the amputation of the mobilised uterus during Laparoscopic Supracervical (Subtotal) Hysterectomy and the resection of devascularized subserosal pedunculated myomas. It is used in conjunction with the Olympus Electrosurgical Generator ESG-400.

    Device Description

    The Bipolar Laparoscopic Loop is a single use disposable high frequency RF bipolar accessory to be used in conjunction with the Olympus Electrosurgical Generator ESG-400. It is available in an 88mm x 227mm loop size. The device is sterilized by ethylene.

    AI/ML Overview

    This document describes the premarket notification (510(k)) for the PK Lap Loop, a bipolar electrosurgical device. The submission focuses on demonstrating substantial equivalence to a predicate device (PKS BiLL) rather than presenting a standalone study with defined acceptance criteria and performance metrics in the typical sense of AI/algorithmic device evaluation.

    Here's an analysis based on the provided text, addressing your points where applicable:

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

    The concept of specific "acceptance criteria" for performance metrics like sensitivity, specificity, or F1-score, as seen in AI/ML device submissions, is not directly applicable here. This document is for a traditional medical device (electrosurgical loop) and focuses on demonstrating substantial equivalence to an already cleared predicate device. The "performance" is implicitly tied to demonstrating that the new device functions equivalently and safely to the predicate.

    The closest to acceptance criteria are the characteristics compared between the PK Lap Loop and the predicate PKS BiLL. The reported device performance is that these characteristics are identical or similar to the predicate, implying they meet the predicate's established performance and safety profile.

    CharacteristicAcceptance Criteria (Implicit: Substantial Equivalence to Predicate)Reported Device Performance (PK Lap Loop vs. PKS BiLL)
    Electrosurgical GeneratorCompatibility with a cleared generatorDifferent (Olympus ESG 400 vs. Gyrus G400)
    Energy used and deliveredIdentical output waveforms and power levelsIdentical
    Compatibility with other devicesSame as predicateIdentical
    DesignFundamentally same, minor changes no impact on safety/usabilitySimilar (minor corporate branding changes)
    Performance (tissue effect, speeds, forces)Same as predicateIdentical
    Device Min and Max output powersAverage power of one cycle period is 200WIdentical
    Cutting time
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    K Number
    K141225
    Date Cleared
    2014-08-12

    (92 days)

    Product Code
    Regulation Number
    878.4400
    Reference & Predicate Devices
    Why did this record match?
    Reference Devices :

    K081954, K111202, K944602

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

    The Olympus ESG-400 electrosurgical unit is intended for cutting and coagulation of tissue in open, laparoscopic and endoscopic surgery in conjunction with electrosurgical accessories and ancillary equipment.

    Device Description

    The ESG-400 is a reusable, non-sterile electrosurgical generator that features different mono- and bipolar cutting and coagulation modes. The maximum output power is 320 W. It is intended for cutting and coagulation of tissue in open, laparoscopic surgery in conjunction with electrosurgical accessories and ancillary equipment.

    The updated ESG-400 allows Olympus Plasma Kinetic (PK) instruments to be connected at the device.

    AI/ML Overview

    The provided document is a 510(k) premarket notification for an electrosurgical generator, the Olympus ESG-400, detailing its comparison to a predicate device and safety information. It focuses on demonstrating substantial equivalence rather than presenting a clinical study with detailed acceptance criteria and performance metrics for a device to "meet" those criteria in the way a diagnostic or AI-driven device would.

    Therefore, many of the requested categories (e.g., sample size for test set, data provenance, number of experts for ground truth, adjudication methods, MRMC studies, standalone performance, training set details) are not applicable or cannot be extracted from this type of regulatory submission for an electrosurgical generator.

    However, I can extract information related to general performance testing and compliance with standards.

    Here's the information that can be extracted, and where applicable, a note that the requested information is not available in the document:

    1. Table of Acceptance Criteria and Reported Device Performance

    Electrosurgical generators are assessed for safety and performance against recognized standards, rather than specific diagnostic accuracy metrics. The "acceptance criteria" here relate to meeting the specifications and safety requirements outlined in the standards and showing equivalence to a predicate device.

    Acceptance Criteria CategorySpecific Acceptance Criteria (from Standards/Equivalence Claim)Reported Device Performance (from "Summary of Performance Testing")
    Safety and Essential PerformanceCompliance with ES60601-1:2005/A1:2012 (Medical electrical equipment - Part 1: General requirements for basic safety and essential performance)The design of the ESG-400 complies with this standard. Performance testing was conducted.
    Electromagnetic Compatibility (EMC)Compliance with IEC 60601-1-2 Edition 3:2007-03 (EMC Requirements and tests)The design of the ESG-400 complies with this standard. Performance testing was conducted.
    Alarm SystemsCompliance with IEC 60601-1-8:2012-11 Edition 2.1 (General requirements, tests and guidance for alarm systems)The design of the ESG-400 complies with this standard. Performance testing was conducted.
    High Frequency Surgery EquipmentCompliance with IEC 60601-2-2 Edition 5.0 2009-2 (Particular requirements for the basic safety and essential performance of high frequency surgery equipment and high frequency surgical accessories)The design of the ESG-400 complies with this standard. Performance testing was conducted.
    Software Life Cycle ProcessesCompliance with IEC 62304 First edition 2006-05 (Medical device software - Software life cycle processes)Software validation activities were performed in accordance with FDA Guidance. The device software is considered a "Minor Level of Concern."
    Usability EngineeringCompliance with IEC 62366: 2007 First edition (Medical devices - Application of usability engineering to medical devices)The design of the ESG-400 complies with this standard. Performance testing was conducted.
    Risk ManagementCompliance with ISO 14971 Second edition 2007-03-01 (Medical devices - Application of risk management to medical devices)Risk analysis was carried out in accordance with established internal acceptance criteria based on ISO-14971:2007.
    Performance with PK InstrumentsCapability to use PlasmaKinetic (PK) instruments in the same manner as supported by the legally distributed/FDA cleared predicate Gyrus G400 generator (K081954). The same range of waveform output and power levels.Bench Test Validation versus Gyrus G400 demonstrating this capability. Waveform and test results were compared directly to the predicate device.
    ReprocessingAdherence to "Labeling Reusable Medical Devices for Reprocessing in Health Care Facilities: FDA Reviewer Guidance – April 1996."Reprocessing validation was carried out in accordance with the guidance.
    Flare Out DetectionIntegration as an additional safety feature in PK cut modes; HF immediately disabled and automatically re-activated; warning tone and error display.Flare out detection was integrated and functions as described.
    Monopolar Cut ModeAddition of a monopolar cut mode (Monopolar Cut E) to complete the range for High Frequency (HF) instruments.Monopolar Cut E was added/implemented.
    Substantial EquivalenceIdentical technology, performance, dimensions, and materials to predicate, with modifications supported by performance tests.Acknowledged verification methodologies demonstrated substantial equivalence.

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

    • Sample Size: Not explicitly stated as a number of "cases" or "patients" in the context of a typical clinical study. Performance testing involved bench tests and validation with representative HF instruments.
    • Data Provenance: Not applicable in the sense of patient data. The testing was conducted internally by the manufacturer (Olympus Winter & Ibe GmbH) as bench validation.

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

    • This information is not applicable and not provided in the document. The testing involved comparing device outputs and functionality against a predicate device and industry standards, not against human expert diagnoses or interpretations.

    4. Adjudication Method for the Test Set

    • Not applicable. The "test set" here refers to bench testing and comparison against a predicate device, not diagnostic interpretations requiring adjudication.

    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 MRMC comparative effectiveness study was done. This type of study is not relevant for an electrosurgical generator, which is a therapeutic device, not an AI-driven diagnostic tool.

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

    • Not applicable. This is an electrosurgical generator, not an algorithm that performs without human involvement. The device itself is the "standalone" component in its intended function.

    7. The Type of Ground Truth Used

    • Ground Truth: The "ground truth" for this device's performance is defined by:
      • Compliance with recognized international standards (e.g., IEC, ISO for safety, performance, EMC, software, risk management).
      • Direct comparison of waveform output and power levels to legally marketed predicate devices (Gyrus G400, K081954).
      • Internal engineering specifications and risk analysis based on ISO-14971.

    8. The Sample Size for the Training Set

    • Not applicable. This is not an AI/ML device that requires a "training set" in the conventional sense.

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

    • Not applicable, as there is no "training set" for this device.
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