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510(k) Data Aggregation

    K Number
    K231939
    Device Name
    Renasys Edge
    Date Cleared
    2024-05-24

    (329 days)

    Product Code
    Regulation Number
    878.4780
    Reference & Predicate Devices
    Why did this record match?
    Device Name :

    Renasys Edge

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

    The RENASYS™ EDGE pump is indicated for patients who would benefit from a suction pump (NPWT), as it may promote wound healing via removal of fluids, including irrigation fluids, wound exudate and infectious materials. Appropriate wound types include:

    • Chronic
    • · Acute
    • · Traumatic
    • Sub-acute and dehisced wounds
    • · Ulcers (such as pressure or diabetic)
    • · Partial-thickness burns
    • · Flaps
    • Grafts

    The RENASYS™ EDGE pump is compatible with the following accessory dressing kits:

    • RENASYS™ Foam Dressing Kits
    • · RENASYS™ Foam Dressing Kit XL
    • · RENASYS™ Gauze Dressing Kits
    • · RENASYSTM Abdominal Dressing Kit
    • · RENASYS™ Y Connector Kit
    • · RENASYSTM White Foam Wound Dressing

    When used with the RENASYS™ AB Abdominal Kit with Soft Port, the RENASYS EDGE™ pump is indicated for temporary bridging of abdominal wall openings where primary closure is not possible and/or repeat abdominal entries are necessary. It is intended to be used in open abdominal wounds with exposed viscera, including but not limited to abdominal compartment syndrome. The use of RENASYS™ AB Abdominal Kit with Soft Port is intended for use in acute hospital care settings (trauma, general and plastic surgery wards) and should ideally be applied in the operating theatre.

    Device Description

    The RENASYS™ EDGE device is a software controlled suction device consisting of an electric motor driven, diaphragm, vacuum pump. The device is designed to provide Negative Pressure Wound Therapy at a range of pressure settings between 25-200mmHg to a closed environment over one or two wounds. The device removes exudate from the wound site(s) to a disposable container, which may promote wound healing via removal of fluids, including irrigation of body fluids, wound exudates and infectious materials.

    RENASYS™ EDGE can be operated by either a mains power supply or internal battery. The RENASYS™ EDGE device is compatible with Smith & Nephew RENASYS™ Dressing Kits.

    AI/ML Overview

    The provided text is a 510(k) summary for the RENASYS™ EDGE device. This document focuses on demonstrating substantial equivalence to a previously cleared device, not an AI/ML powered device, and thus does not contain the information requested in points 1, 2, 3, 4, 5, 6, 7, 8, and 9 of the prompt, which are typically associated with performance studies for AI/ML medical devices.

    The submission is specifically for adding "RENASYS™ White Foam dressing kits" as compatible accessories to the existing RENASYS™ EDGE negative pressure wound therapy system. It explicitly states: "No clinical data was provided to support the demonstration of substantial equivalence."

    Instead, the document details non-clinical tests performed to demonstrate that the overall system performance of the RENASYS™ EDGE device is not impacted by the use of the new dressing. These tests are:

    • Simulated wound model tests: To ensure satisfactory performance, including fluid management and Negative Pressure Wound Therapy (NPWT) delivery.
    • EMC Testing: In accordance with IEC 60601-1-2 and RTCA DO-160G.
    • Cybersecurity testing: In accordance with FDA guidance "Content of Premarket Submissions for Device Software Functions Guidance for Industry and Food and Drug Administration Staff".
    • Software design and testing: In accordance with the framework set out in IEC 62304:2006.
    • Low air pressure environment testing: EMC testing (RTCA DO-160G) and NPWT wound model testing were carried out to support the new environment for use (aircraft).

    Therefore, I cannot provide a response for the requested information regarding acceptance criteria, device performance tables, sample sizes, expert ground truth, adjudication methods, MRMC studies, standalone performance, ground truth types, or training set details, as this information is not present in the provided document.

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    K Number
    K223041
    Date Cleared
    2022-11-22

    (54 days)

    Product Code
    Regulation Number
    878.4780
    Reference & Predicate Devices
    Why did this record match?
    Device Name :

    Renasys Edge (66803126)

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

    The RENASYS EDGE pump is indicated for patients who would benefit from a suction pump (NPWT), as it may promote wound healing via removal of fluids, including irrigation fluids, wound exudate and infectious materials. Appropriate wound types include:

    • Chronic
    • Acute
    • · Traumatic
    • Sub-acute and dehisced wounds
    • · Ulcers (such as pressure or diabetic)
    • Partial-thickness burns
    • · Flaps
    • · Grafts

    When used with the RENASYS AB Abdominal Kit with Soft Port, the RENASYS EDGE pump is indicated for temporary bridging of abdominal wall openings where primary closure is not possible and/or repeat abdominal entries are necessary. It is intended to be used in open abdominal wounds with exposed viscera, including but not limited to abdominal compartment syndrome. The use of RENASYS AB Abdominal Kit with Soft Port is intended for use in acute hospital care settings (trauma, general and plastic surgery wards) and should ideally be applied in the operating theatre.

    Device Description

    The RENASYS EDGE device is a software controlled suction device consisting of an electric motor driven, diaphragm, vacuum pump. The device is designed to provide Negative Pressure Wound Therapy at a range of pressure settings between 25-200mmHg to a closed environment over one or two wounds. The device removes exudate from the wound site(s) to a disposable container, which may promote wound healing via removal of fluids, including irrigation of body fluids, wound exudates and infectious materials.

    RENASYS EDGE can be operated by either a mains power supply or internal battery. The RENASYS EDGE device is compatible with Smith & Nephew RENASYS Dressing Kits.

    AI/ML Overview

    The provided document is a 510(k) Premarket Notification for the RENASYS EDGE device, a negative pressure wound therapy (NPWT) system. Based on the document, here's an analysis of the acceptance criteria and the study performed:

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

    The document does not explicitly present a table of acceptance criteria with reported device performance in a quantitative manner as typically seen for diagnostic devices. Instead, it lists various verification activities conducted to demonstrate the overall system performance and substantial equivalence to a predicate device.

    The "acceptance criteria" here are implicitly linked to compliance with relevant medical device standards and the successful completion of specific types of testing to ensure the device performs as intended and is safe and effective when compared to the predicate device.

    Acceptance Criteria (Implicit)Reported Device Performance
    Electrical Safety (IEC 60601-1, IEC 60601-1-11)Successful completion of electrical safety testing per IEC 60601-1 (general medical electrical equipment) and IEC 60601-1-11 (for home healthcare environment).
    Electromagnetic Compatibility (EMC per IEC 60601-1-2)Successful completion of EMC testing per IEC 60601-1-2.
    Human Factors/Usability (IEC 62366, IEC 60601-1-6, FDA Guidance)Successful completion of human factors testing per IEC 62366, IEC 60601-1-6, and applicable FDA guidance "Applying Human Factors and Usability Engineering to Medical Devices."
    Bench-top Performance (including challenge conditions)Successful completion of "simulated wound model tests" and other bench-top performance testing under various challenge conditions. This likely includes:
    • Exudate Management: Ability to remove fluids, wound exudate, and infectious materials.
    • Therapeutic Pressure Setting: Ability to maintain negative pressure within the 25-200mmHg range.
    • Alarm Functionality: Proper functioning of alarms to notify users of therapy loss.
    • Auto-restart Function: Effective re-initiation of therapy after pause. |
      | Software Verification | Successful completion of software verification testing. |
      | Substantial Equivalence | Demonstrated through evaluation of indications for use, principle of operation, materials, technology, product specifications, and energy requirements, alongside performance testing, software verification, EMC, and electrical safety testing. |

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

    The document explicitly states: "No clinical data were provided to support the demonstration of substantial equivalence."
    Therefore, there is no sample size for a test set of patients, nor is there any provenance information such as country of origin or retrospective/prospective nature, as no human clinical studies were performed. The testing conducted was entirely non-clinical.

    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. Since no clinical data was provided and no human test set was used, there were no experts establishing ground truth for a clinical test set. The validation was based on engineering and performance criteria against standards.

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

    Not applicable, as no clinical test set requiring adjudication was used.

    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. The RENASYS EDGE device is a physical medical device (NPWT pump), not an AI-powered diagnostic or assistive tool for human readers. Therefore, an MRMC study is not relevant to its evaluation.

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

    Not applicable. This is not an algorithm-only device. The evaluation focused on the physical device's performance characteristics.

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

    The "ground truth" for the non-clinical tests would have been the engineering specifications and established performance parameters defined by the manufacturer and relevant international medical device standards (e.g., specific negative pressure range, exudate removal rates, alarm trigger conditions, electrical safety limits, EMC limits). Compliance with these predefined technical criteria constituted the "ground truth."

    8. The sample size for the training set

    Not applicable. This is a medical device, not an AI model that requires a training set.

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

    Not applicable, as there was no training set for an AI model.

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