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510(k) Data Aggregation

    Why did this record match?
    Device Name :

    Flexiva Pulse Laser Fiber; Flexiva Pulse TracTip Laser Fiber; Flexiva Pulse ID Laser Fiber; Flexiva Pulse

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

    Flexiva Pulse and Flexiva Pulse TracTip laser fibers are intended to be used as a device that transmits Ho:YAG laser energy from cleared laser consoles to urological anatomy. Flexiva Pulse and Flexiva Pulse TracTip laser fibers are indicated for urologic applications for which the laser systems are cleared, limited to endoscopic procedures involving vaporization, ablation, hemostasis, coagulation, excision, resection, incision of soft tissue, and lithotripsy of urinary calculi. The fiber is designed for use with a standard SMA-905 connector and has been cleared for surgical use.

    Flexiva Pulse ID and Flexiva Pulse ID TracTip laser fibers are intended to be used as a device that transmits Ho:YAG laser energy from cleared laser consoles to urological anatomy. Flexiva Pulse ID and Flexiva Pulse ID TracTip laser fibers are indicated for urologic applications for which the laser systems are cleared, limited to endoscopic procedures involving vaporization, ablation, hemostasis, coagulation, excision, resection, incision of soft tissue, and lithotripsy of urinary calculi. The fiber is designed for use with a standard SMA-905 connector and has been cleared for surgical use

    Device Description

    Flexiva Pulse, Flexiva Pulse TracTip, Flexiva Pulse ID and Flexiva Pulse ID TracTip Single Use Laser Fibers are fiber optic laser energy delivery devices consisting of a SMA connector (Black Hole design), and an ETFE jacketed silica core fiber. Flexiva Pulse and Flexiva Pulse ID fibers are equipped with a polished, flat output tip (242µm, 365µm, 550µm and 910µm size) and the Flexiva Pulse TracTip and Flexiva Pulse ID TracTip fibers are equipped with a polished and reinforced ball-shaped output tip (242µm size).

    These fibers may be used in a variety of laser-based surgical cases. For Flexiva Pulse ID laser fibers, an RFID (Radio-frequency identification) tag enables read/write data storage for compatible RFID-equipped laser systems (closed systems).

    AI/ML Overview

    The provided FDA 510(k) clearance letter and summary for the Flexiva Pulse Laser Fibers does not contain the detailed information necessary to answer all sections of your request regarding acceptance criteria and study particulars for a medical device. This document is a premarket notification for laser fibers, which are physical components and not typically subject to the same kind of performance studies as, for example, an AI diagnostic algorithm.

    Specifically, it lacks information about:

    • Acceptance Criteria for a diagnostic output: As the device is a laser fiber for surgical use, its "performance" is about its physical properties and ability to transmit laser energy, not diagnostic accuracy.
    • Study proving device meets acceptance criteria in the context of diagnostic accuracy.
    • Sample sizes for test sets, data provenance, number of experts for ground truth, adjudication methods, MRMC studies, standalone performance, type of ground truth for test and training sets, and training set sample size and ground truth establishment for AI-based devices. These are all concepts related to clinical performance evaluation, particularly for AI/Machine Learning devices, which is not the nature of the Flexiva Pulse Laser Fibers.

    The document does describe performance testing related to the physical and functional attributes of the laser fiber. I will present the information contained in the document that most closely aligns with the spirit of your request, interpreting "acceptance criteria" and "reported device performance" in the context of a physical medical device.


    Overview of Device Performance and Testing (Flexiva Pulse Laser Fibers)

    The document describes a Special 510(k) submission for the Flexiva Pulse Laser Fibers, indicating that it is a modification to a previously cleared device (predicate device K210925). The core of the submission is to demonstrate substantial equivalence to the predicate device, primarily due to a "secondary coating resin material change." Therefore, the "study" described is focused on validating that this material change does not negatively impact the critical performance characteristics of the laser fiber.

    1. Table of Acceptance Criteria and Reported Device Performance

    Given the nature of the device (laser fiber), the "acceptance criteria" and "reported device performance" are related to its functional integrity and safety. These are not performance metrics like sensitivity, specificity, or accuracy, which would be relevant for a diagnostic AI device.

    Characteristic TestedDescription / Acceptance Standard (Implicit)Reported Device Performance
    Bent TransmissionEnsure efficient laser energy transmission even when bent, indicating fiber integrity and stability.Successfully passed (implied by "Design Verification was executed to support the safe and effective use").
    Fiber Durability while FiringMaintain structural integrity and performance during active laser firing, resisting degradation.Successfully passed (implied by "Design Verification was executed to support the safe and effective use").
    Fiber Connector TemperatureMaintain connector temperature within safe limits during operation to prevent overheating.Successfully passed (implied by "Design Verification was executed to support the safe and effective use").
    Laser System Output AccuracyEnsure the fiber accurately transmits the intended laser energy output without significant loss or alteration.Successfully passed (implied by "Design Verification was executed to support the safe and effective use").
    BiocompatibilityNo new biocompatibility risks from the material change.Concluded that "there are no biocompatibility risks associated with the proposed Flexiva Pulse/ ID Laser Fiber."

    2. Sample Size for the Test Set and Data Provenance

    The document does not specify the exact sample sizes (e.g., number of fibers tested) for the performance tests (Bent Transmission, Fiber Durability, etc.). It generally states that a "Design Verification was executed." The data provenance is internal testing performed by Boston Scientific Corporation. The studies are by nature prospective in the sense that they are performed on newly manufactured devices with the changed coating resin material to verify their performance. There is no mention of country of origin for test data, but it would typically be conducted at the manufacturer's R&D facilities.

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

    Not applicable. This is not a diagnostic device where expert ground truth is established for clinical outcomes or interpretations. The "ground truth" for the performance tests mentioned above would be engineering and physical measurement standards.

    4. Adjudication Method

    Not applicable. This is not a diagnostic device requiring adjudication of clinical interpretations.

    5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study was done

    No. This type of study is for evaluating human performance (e.g., diagnostic accuracy) with and without AI assistance, which is irrelevant for a laser fiber.

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

    No. This refers to the performance of a diagnostic algorithm without human intervention, which is not applicable to a laser fiber.

    7. The Type of Ground Truth Used

    For the physical performance tests:

    • Engineering Specifications/Standards: The "ground truth" is adherence to predefined engineering specifications for power transmission, temperature limits, durability, etc. These would be established based on industry standards, the predicate device's performance, and safety requirements.
    • Biocompatibility Standards: For biocompatibility, the ground truth is compliance with recognized biological evaluation standards (e.g., ISO 10993 series), ensuring the materials are safe for human contact.

    8. The Sample Size for the Training Set

    Not applicable. This device is not an AI/Machine Learning algorithm, so there is no "training set."

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

    Not applicable. As there is no training set, there is no ground truth establishment for it.


    Summary of what the document indicates about the "study":

    The study was a "Design Verification" executed by Boston Scientific Corporation to support the "safe and effective use" of the proposed laser fibers after a "secondary coating resin material change." The purpose was to demonstrate that the modified device remains "substantially equivalent" to its predicate device (K210925). The tests involved evaluating the fiber's ability to transmit laser energy (Bent Transmission), its resilience during use (Fiber Durability while Firing), and safety (Fiber Connector Temperature, Laser System Output Accuracy, Biocompatibility). The document implies that all these tests were successfully completed, confirming that the material change did not compromise the device's performance or safety.

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    Why did this record match?
    Device Name :

    Flexiva Pulse Laser Fiber, Flexiva Pulse Tractip Laser Fiber, Flexiva Pulse ID Laser Fiber, Flexiva

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

    Flexiva Pulse and Flexiva Pulse TracTip laser fibers are intended to be used as a device that transmits Ho: YAG laser energy from cleared laser consoles to urological anatomy. Flexiva Pulse and Flexiva Pulse TracTip laser fibers are indicated for urologic applications for which the laser systems are cleared, limited to endoscopic procedures involving vaporization, ablation, hemostasis, coagulation, excision, incision of soft tissue, and lithotripsy of urinary calculi. The fiber is designed for use with a standard SMA-905 connector and has been cleared for surgical use.

    Flexiva Pulse ID and Flexiva Pulse ID TracTip laser fibers are intended to be used as a device that transmits Ho:YAG laser energy from cleared laser consoles to urological anatomy. Flexiva Pulse ID and Flexiva Pulse ID TracTip laser fibers are indicated for urologic applications for which the laser systems are cleared, limited to endoscopic procedures involving vaporization, ablation, hemostasis, coagulation, excision, resection, incision of soft tissue, and lithotripsy of urinary calculi. The fiber is designed for use with a standard SMA-905 connector and has been cleared for surgical use.

    Device Description

    The Flexiva Pulse Laser Fiber, Flexiva Pulse TracTip Laser Fiber, Flexiva Pulse ID Laser Fiber, and Flexiva Pulse ID TracTip Laser Fiber are fiber optic laser energy delivery devices consisting of a SMA connector (Black Hole design), and an ETFE jacketed silica core fiber. The Flexiva Pulse and Flexiva Pulse ID fibers are equipped with a polished, flat output tip (242um, 365um, 550um and 910um size) and the Flexiva Pulse TracTip and Flexiva Pulse ID TracTip fibers are equipped with a polished and reinforced ball-shaped output tip (242um size).

    For the Flexiva Pulse ID and the Flexiva Pulse ID TracTip laser fibers, an RFID (radio-frequency identification) tag enables read/write data storage for compatible RFID-equipped laser systems (closed systems).

    AI/ML Overview

    The provided document is a 510(k) summary for the Flexiva Pulse Laser Fibers. It describes the device, its intended use, and how it demonstrates substantial equivalence to predicate devices. However, this document does not contain a formal study that establishes specific acceptance criteria and then proves the device meets those criteria for the performance of the device in a clinical or simulated clinical setting. Instead, it focuses on demonstrating that the new device is as safe and effective as pre-existing, legally marketed predicate devices through a comparison of technological characteristics and extensive bench testing.

    Therefore, it's not possible to populate the requested table and answer many of the specific questions about a "study that proves the device meets the acceptance criteria" in the way one might for a novel AI/software medical device or a device requiring clinical performance validation against specific endpoints.

    Here's an attempt to address the request based only on the information provided in the given text, highlighting where information is absent:


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

    The document does not explicitly state acceptance criteria in a quantitative format for clinical performance or sensitivity/specificity typical of diagnostic studies. Instead, the acceptance criteria are implicitly that the new device performs at least as well as, or equivalently to, the predicate devices in various bench tests and meets biocompatibility standards.

    Acceptance Criteria (Implicit from testing)Reported Device Performance
    Biocompatibility standards (ISO 10993-1:2018) met.All patient contacting materials meet applicable biocompatibility standards as per ISO 10993-1:2018 and FDA guidance. Passing results for Cytotoxicity, Sensitization, Irritation, Acute Systemic Toxicity, and Materials Mediated Pyrogenicity.
    Connector temperature within limits for normal use (IEC 60601-1:2005).The Flexiva Pulse laser fibers conform to Section 11.1.1, Maximum temperature during Normal Use, of IEC 60601-1:2005.
    Fiber Jacket Outer Diameter, Ball Tip Fracture Resistance, Distal Tip Length,Specific quantitative performance values are not provided, but the document states, "The results of the performance testing demonstrate that the Flexiva Pulse Laser Fiber, Flexiva PulseTracTip Laser Fiber, Flexiva Pulse ID Laser Fiber, and Flexiva Pulse ID TracTip Laser Fiber are considered safe and effective for their intended use." This implies that the device met the pre-defined (but not specified) acceptance limits for these tests, demonstrating equivalence or superior performance compared to the predicate for the design changes.
    Fiber Length, Bent Transmission, Fiber Stiffness, Power Rating & Efficiency
    Fiber Connector Temperature, Fiber Aiming Beam Visualization, Laser Compatibility
    RFID Recognition (for ID versions), Scope Adaptor Compatibility,
    Tensile Strength of fiber to connector housing, Fiber Hub to Connector Housing Torque
    Pouch Seal Integrity, Pouch Seal Strength
    No Damage to Scope Liner (Ball-Tip)

    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 for each bench test. The testing involved "samples aged at T=0 and T=3 year accelerated aging," but the number of samples for each test is not provided.
    • Data provenance: Bench evaluations conducted by Boston Scientific. The country of origin and whether it's retrospective or prospective are not applicable in the context of bench testing.

    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)

    • Not applicable as this is a device clearance based on substantial equivalence through bench testing, not a study evaluating human interpretation or a diagnostic algorithm against expert-established ground truth.

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

    • Not applicable.

    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, an MRMC comparative effectiveness study was not done. This device is a laser fiber for surgical use, not an AI/software diagnostic device.

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

    • Not applicable. This is a physical medical device (laser fiber), not an algorithm.

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

    • The "ground truth" for this submission are the established engineering and safety standards (e.g., ISO 10993-1, IEC 60601-1) and the performance characteristics of the predicate devices. The tests were designed to confirm that the new device meets these standards and performs comparably to or better than the predicate.

    8. The sample size for the training set

    • Not applicable. This is a physical medical device, not a machine learning model requiring a training set.

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

    • Not applicable.

    Summary of why information is missing:

    This document is a 510(k) summary for a physical medical device (laser fiber), not a software or AI-based diagnostic device. The clearance is based on demonstrating "substantial equivalence" to legally marketed predicate devices. This typically involves:

    • Comparing the intended use and technological characteristics.
    • Conducting extensive bench testing to ensure the new device meets safety and performance standards and performs comparably to the predicate.
    • Confirming biocompatibility.

    Therefore, the study described is a series of engineering and material performance tests, not a clinical trial or a diagnostic performance study, which would involve concepts like sample size for test/training sets, experts for ground truth, MRMC studies, or standalone algorithm performance.

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