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510(k) Data Aggregation

    K Number
    K243293
    Manufacturer
    Date Cleared
    2024-12-20

    (63 days)

    Product Code
    Regulation Number
    888.3565
    Reference & Predicate Devices
    Why did this record match?
    510k Summary Text (Full-text Search) :

    Classification Names:
    JWI - prosthesis, wrist, 2 part metal-plastic articulation semi-constrained (21 CFR 888.3800

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

    When a mechanical alignment approach is utilized, this device is indicated for patients with severe knee pain and disability due to:

    • Rheumatoid arthritis, osteoarthritis, traumatic arthritis, polyarthritis.
    • Collagen disorders, and/or avascular necrosis of the femoral condyle.
    • Post-traumatic loss of joint configuration, particularly when there is patellofemoral erosion, dysfunction or prior patellectomy.
    • Moderate valgus, varus, or flexion deformities.
    • The salvage of previously failed surgical attempts or for a knee in which satisfactory stability in flexion cannot be obtained at the time of surgery.
      When a personalized alignment approach is utilized, this device is indicated for patients with severe knee pain and disability due to:
    • Rheumatoid arthritis, osteoarthritis, traumatic arthritis, polyarthritis.
    • Collagen disorders, and/or avascular necrosis of the femoral condyle.
    • Moderate valgus, varus, or flexion deformities.
    Device Description

    The Persona Personalized Knee System is a semiconstrained modular knee prosthesis designed to resurface the articulating surface of the femoral, tibial, and patellar bones.
    The purpose of this submission is to add compatibility for cemented nonporous Persona tibial components with a stem extension to the current Personalized Alignment (PA) surgical technique option. In addition to the modifications regarding personalized alignment, this submission also discusses the updated geometric evaluations for the Persona Personalized Knee System as well as the shelf-life extension (5 years to 10 years) of its Vivacit-E VEXLPE implant components.

    AI/ML Overview

    I'm sorry, but based on the provided text, I cannot describe the acceptance criteria and a study that proves the device meets those criteria, as the document does not contain this information. The text is a 510(k) premarket notification letter from the FDA to Zimmer Biomet regarding the Zimmer® Persona® Personalized Knee System, confirming its substantial equivalence to previously marketed devices.

    The document focuses on:

    • The FDA's determination of substantial equivalence (K243293).
    • Regulatory information and requirements for medical devices.
    • Indications for use of the Zimmer® Persona® Personalized Knee System.
    • Identification of predicate devices (K240299, K222566).
    • A brief description of the device and the purpose of the submission (adding compatibility for cemented nonporous Persona tibial components with a stem extension to the Personalized Alignment surgical technique; updated geometric evaluations; shelf-life extension for specific components).
    • A summary of technological characteristics comparing the subject device to the predicate device, emphasizing their similarities regarding intended use, indications for use, variants/sizes, design features, material, and sterility, and noting a similar shelf life with an extension for Vivacit-E VEXLPE components.
    • A general statement about performance data indicating the proposed devices meet established acceptance criteria and are as safe and effective as predicate devices.

    However, the document does NOT include:

    • A table of specific acceptance criteria and detailed reported device performance against those criteria.
    • Information about sample sizes for test sets, data provenance, or the nature of prospective/retrospective studies.
    • Details on the number or qualifications of experts used for ground truth establishment.
    • Adjudication methods.
    • Statements about multi-reader, multi-case (MRMC) comparative effectiveness studies or human reader improvement with AI assistance.
    • Information on standalone algorithm performance.
    • The specific type of ground truth used (e.g., pathology, outcomes data).
    • Sample sizes for training sets or how ground truth for training sets was established.

    The text primarily attests to substantial equivalence based on the similarity of the device to existing predicates and a general statement about meeting performance criteria, but it does not elaborate on the specific studies or data that would fulfill your request for detailed acceptance criteria and proof of adherence.

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    K Number
    K243381
    Date Cleared
    2024-11-01

    (2 days)

    Product Code
    Regulation Number
    888.3800
    Reference & Predicate Devices
    Why did this record match?
    510k Summary Text (Full-text Search) :

    33156

    Re: K243381

    Trade/Device Name: Total Wrist Arthroplasty System (TWA) Regulation Number: 21 CFR 888.3800
    Name: Wrist joint metal/polymer semi-constrained cemented prosthesis Classification Number: 21 CFR §888.3800

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

    The Skeletal Dynamics Total Wrist Arthroplasty System is intended for replacement of the painful wrist joint due to rheumatoid arthritis, osteo-arthritis, or post-traumatic arthritis.

    Device Description

    The subject Total Wrist Arthroplasty System is a total joint replacement of the wrist. The system has four major components: a radial component, a carpal component, a poly "lunate" component, and screws which fix the carpal component to the carpus.

    AI/ML Overview

    This document is a 510(k) premarket notification for a medical device called the "Total Wrist Arthroplasty System (TWA)." It is a submission to the FDA seeking clearance to market this device, demonstrating its substantial equivalence to a previously cleared predicate device.

    The provided text does not describe:

    • Acceptance criteria for an AI/software device.
    • A study proving a device meets acceptance criteria related to AI performance metrics (like sensitivity, specificity, AUC).
    • Any details about sample sizes for test sets, data provenance, expert adjudication, MRMC studies, standalone performance, or ground truth establishment for AI.

    Instead, this document is a regulatory submission for a physical medical implant (a wrist joint replacement system). The "Performance Testing" section refers to sterilization validation and material testing (CoCr, CPTi, UHMWPE, Ti 6AL-4V ELI) as per ISO standards (ANSI/AAMI/ISO 11135 and ISO10993-7), not AI/algorithm performance.

    Therefore, I cannot fulfill your request using the provided input as it pertains to an AI/software device's acceptance criteria and study data. The document describes a traditional medical device (implant) and its manufacturing/sterilization validation.

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    K Number
    K233574
    Manufacturer
    Date Cleared
    2024-07-03

    (239 days)

    Product Code
    Regulation Number
    888.3800
    Reference & Predicate Devices
    Why did this record match?
    510k Summary Text (Full-text Search) :

    33156

    Re: K233574

    Trade/Device Name: Total Wrist Arthroplasty System (TWA) Regulation Number: 21 CFR 888.3800
    Name: Wrist joint metal/polymer semi-constrained cemented prosthesis Classification Number: 21 CFR §888.3800

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

    The Skeletal Dynamics Total Wrist Arthroplasty System is intended for replacement of the painful wrist joint due to rheumatoid arthritis, osteo-arthritis, or post-traumatic arthritis.

    Device Description

    The subject Total Wrist Arthroplasty System is a total joint replacement of the wrist. The system has four major components: a radial component, a carpal component, a poly "lunate" component, and screws which fix the carpal component to the carpus.

    AI/ML Overview

    The provided text is a 510(k) summary for the Skeletal Dynamics Total Wrist Arthroplasty System (TWA). It describes the device, its indications for use, and a comparison to a predicate device. However, it does not contain information about specific acceptance criteria, reported device performance metrics (numerical data for sensitivity, specificity, AUC, etc.), sample sizes for test or training sets, data provenance, number or qualifications of experts, adjudication methods, MRMC studies, or standalone algorithm performance.

    The "Performance Testing" section lists various mechanical tests conducted according to ASTM and ISO standards, but these are for evaluating the physical properties and durability of the implant components, not for assessing the performance of a software or AI-driven diagnostic device against clinical outcomes or expert ground truth.

    Therefore, I cannot fulfill the request to provide a table of acceptance criteria and reported device performance, or details about the study design related to AI performance, as this information is not present in the provided document.

    The document indicates a physical medical device (Total Wrist Arthroplasty System), not a software or AI-based diagnostic device. The "performance testing" refers to mechanical and material testing to ensure the safety and effectiveness of the implant itself, not to the performance of an algorithm against clinical data.

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    K Number
    K233674
    Date Cleared
    2024-05-30

    (196 days)

    Product Code
    Regulation Number
    888.3800
    Reference & Predicate Devices
    Why did this record match?
    510k Summary Text (Full-text Search) :

    78758

    Re: K233674

    Trade/Device Name: Freedom Wrist Arthroplasty System Regulation Number: 21 CFR 888.3800
    cemented prosthesis | |
    | Regulation Number | 21 CFR 888.3800

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

    The Freedom Wrist Arthroplasty System is indicated for intractable pain resulting from traumatic arthritis, osteoarthritis, rheumatoid arthritis, and trauma-induced osteoarthritis of the radial/carpal joint and is intended to replace functionality of the joint due to deformity or elements stated above. The Freedom Wrist Arthroplasty System is intended for cemented use.

    Device Description

    The Freedom Wrist Arthroplasty System consists of components to replace the articulation of the distal radius and proximal row of carpal bones of the wrist joint. The components are intented together as a system, not individually as hemi-arthroplasty components. The radial component is made of Cobalt Chrome Molybenum Alloy (CrCoMo) and has a concave articulating surface and is fixed by means of a stem which is inserted into the radial intramedullary canal. The carpal implant is an assembly consisting of a titanium carpal plate, which is fixed into the carpal bones with a cemented central peg and locking caps. A convex Ultra-High-Molecular-Weight Polyethylene (UHMWPE) bearing is locked onto the carpal plate to articulate with the radial component.

    AI/ML Overview

    Unfortunately, the provided text does not contain information about an AI/ML-based medical device study. The document is an FDA 510(k) clearance letter for the "Freedom Wrist Arthroplasty System," which is a physical medical device (a wrist implant).

    The text primarily focuses on:

    • Device Description: The components and materials of the wrist implant.
    • Intended Use/Indications for Use: What the implant is designed to treat.
    • Predicate Device Comparison: How it compares to previously cleared devices.
    • Non-Clinical Testing: Specifically, tests related to MRI safety and compatibility (Magnetically Induced Displacement Force, Torque, RF-Induced Heating, Image Artifacts).

    Therefore, I cannot provide the requested information regarding acceptance criteria, study details, sample sizes, expert involvement, ground truth establishment, or specific performance metrics for an AI/ML device, as this information is not present in the provided document.

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    K Number
    K200718
    Date Cleared
    2020-10-15

    (210 days)

    Product Code
    Regulation Number
    888.3800
    Reference & Predicate Devices
    Why did this record match?
    510k Summary Text (Full-text Search) :

    Trade/Device Name: Arthrosurface WristMotion Total Wrist Arthroplasty System Regulation Number: 21 CFR 888.3800

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

    The Arthrosurface Total Wrist Arthroplasty System is indicated for replacement of the painful wrist joint due to rheumatoid arthritis, oseto-arthritis, or post-traumatic arthritis.

    The device is a single-use implant intended to be used with bone cement.

    Device Description

    The Arthrosurface Total Wrist Arthroplasty (TWA) System is a modular joint restoration system that consists of both a radial implant assembly and carpal implant assembly. The radial implant assembly is comprised of a metallic stemmed tray component and Ultra-High-Molecular-Weight-Polyethylene (UHMWPE) articular component. The carpal implant assembly consists of a taper post component, a carpal plate, an articular component and two auxiliary bone screw components, all of which are metallic. The system is designed to replace the radiocarpal joint (distal radius and proximal row of carpal bones) and is intended to alleviate pain while restoring functionality and mobility of the joint.

    AI/ML Overview

    The provided text describes a 510(k) premarket notification for the Arthrosurface WristMotion Total Wrist Arthroplasty System. As such, it focuses on demonstrating substantial equivalence to predicate devices rather than providing detailed acceptance criteria or a study proving the device meets specific performance criteria as would be found for a novel device.

    Therefore, many of the requested details, particularly regarding acceptance criteria with reported performance, sample sizes for test and training sets, expert qualifications, and specific AI-related comparative effectiveness or standalone studies, are not applicable or not explicitly provided in this type of regulatory document.

    However, based on the information given, here's what can be extracted and inferred:

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

    This information is not explicitly provided in a quantified table format in the document. The submission focuses on demonstrating substantial equivalence through non-clinical tests. The "Conclusion" states: "The results have demonstrated the safety and effectiveness of the Arthrosurface Total Wrist Arthroplasty System along with substantial equivalence to the predicate devices." This implies that the device met the performance expectations for these tests, but the specific acceptance criteria (e.g., maximum torque, minimum cycles) and the reported values are not detailed.

    Specific Non-Clinical Tests Conducted (without acceptance criteria or reported performance):

    Test NameAcceptance Criteria (Not Provided)Reported Performance (Not Provided)
    Bone Screws – insertion & removalN/AN/A
    Bone Screws – torsion to failureN/AN/A
    Bone Screws – axial pulloutN/AN/A
    Assembly / DisassemblyN/AN/A
    Resistance to TorqueN/AN/A
    Static & Cyclic Edge TestingN/AN/A
    Fretting CorrosionN/AN/A
    Constraint testing (Subluxation)N/AN/A
    Comparative Engineering Analyses (ROM, Contact Area etc.)N/AN/A
    Kinetic Chromogenic LAL Test for DevicesMeets standard limit of 0.5 EU/mL or 20 EU/ Device per USP Chapter Bacterial Endotoxins Test, USP Chapter Transfusion and Infusion Assemblies and Similar Medical Devices, and AAMI ST72:2002/R2010, Bacterial Endotoxins-Test Methodologies, Routine Monitoring, and Alternatives to Batch Testing.N/A (implied met)

    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: Not specified. The document mentions "non-clinical tests and/or analysis" but does not detail the number of samples used for each test.
    • Data Provenance: The tests are non-clinical, likely performed in a laboratory setting, so country of origin or retrospective/prospective nature of patient data is not applicable.

    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):

    This information is not applicable as this submission is for a medical implant (arthroplasty system), not an AI/software device that requires expert-established ground truth for image interpretation or diagnosis. The "ground truth" for non-clinical device testing refers to engineering standards and physical measurements.

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

    Not applicable for this type of non-clinical device testing. Adjudication methods are typically used in clinical studies or for interpreting ambiguous cases in AI/software performance evaluations by humans.

    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 submission is for a medical implant, not an AI-assisted diagnostic or therapeutic device.

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

    Not applicable. This submission is for a medical implant.

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

    The "ground truth" for the non-clinical tests listed would be based on engineering standards, material properties, and physical measurements performed in a laboratory. For example, for "torsion to failure," the ground truth would be the objectively measured torque at which the screw failed, compared against a pre-defined standard or predicate device performance. For the LAL test, the ground truth is whether the endotoxin level meets the specified USP and AAMI standards.

    8. The sample size for the training set:

    Not applicable. This submission is for a physical medical implant, not a machine learning model that requires a training set.

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

    Not applicable. As above, this is for a physical implant, not an AI/ML device.

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    K Number
    K191525
    Date Cleared
    2020-03-04

    (268 days)

    Product Code
    Regulation Number
    888.3800
    Reference & Predicate Devices
    Why did this record match?
    510k Summary Text (Full-text Search) :

    Re: K191525

    Trade/Device Name: KinematX Total Wrist Arthroplasty System Regulation Number: 21 CFR 888.3800
    |
    | Classification
    Name and Number | 21 CFR 888.3800

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

    The KinematX Total Wrist Arthroplasty System is indicated for the replacement of wrist joints disabled by pain, deformity, and/or limited motion caused by:

    1. Non-inflammatory degenerative wrist disease of the radiocarpal joint including osteoarthritis, post-traumatic arthritis, and Kienbock's disease
    2. Revision where other devices or treatments have failed
    3. Scapholunate Advanced Collapse (SLAC)
    4. Rheumatoid Arthritis
      The device is intended to be implanted with bone cement.
    Device Description

    The KinematX Total Wrist Arthroplasty System is a semi-constrained implant system designed to replace the joints of the wrist to alleviate pain while restoring functionality and mobility of the wrist joints. The system consists of two main, modular components:

    1. Radial Implant Assembly: CoCr radial stem and an ultra-high molecular weight polyethylene (UHMWPE) bearing surface that interlocks onto a CoCr tray
    2. Carpal Implant Assembly: Baseplate with central peg, index metacarpal screw, hamate screw, and CoCr cap.
    AI/ML Overview

    This FDA document, K191525, describes the KinematX Total Wrist Arthroplasty System. However, it does not include details about acceptance criteria, device performance tables, sample sizes for test or training sets, ground truth establishment, expert qualifications, or multi-reader multi-case studies. It explicitly states that "No clinical testing was performed."

    Therefore, I cannot provide the requested information based on the provided text. The document focuses on establishing substantial equivalence to predicate devices through non-clinical testing (mechanical and cadaveric evaluations) and a comparison of indications for use, materials, and design.

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    K Number
    K132250
    Date Cleared
    2014-03-24

    (248 days)

    Product Code
    Regulation Number
    888.3800
    Reference & Predicate Devices
    Why did this record match?
    510k Summary Text (Full-text Search) :

    | Wrist joint metal/polymer semi-constrained cemented
    prosthesis (21CFR §888.3800
    Regulation | Class II, under 21CFR §888.3800
    Re: K132250

    Trade/Device Name: INTEGRA® Freedom Wrist Arthroplasty System Regulation Number: 21 CFR 888.3800

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

    The INTEGRA® Freedom Wrist Arthroplasty System is indicated for intractable pain resulting from traumatic arthritis, osteoarthritis, rheumatoid arthritis, trauma-induced osteoarthritis of the radial/carpal joint and is intended to replace functionality of the joint due to deformity or elements stated above. The INTEGRA® Freedom Wrist Arthroplasty System is intended for cemented use.

    Device Description

    The INTEGRA® Freedom Wrist Arthroplasty (IFW) System three part semi-constrained implant system designed to replace the radiocarpal joint (distal radius and proximal row of carpal bones) and is intended to alleviate pain while restoring functionality and mobility of the joint. IFW is intended for patients with intractable pain and loss function due to traumatic arthritis, osteoarthritis, rheumatoid arthritis, and trauma-induced osteoarthritis. The system consists of three major components:

    • Radial implant made from Cobalt Chromium Molybdenum Alloy (CrCoMo) .
    • . Carpal plate - (includes two variable angle screws with locking caps) - made from Titanium Alloy
    • . Carpal Poly bearing - made from Ultra-High-Molecular-Weight Polyethylene (UHMWPe)
      Portions of the radial implant and carpal plate have a titanium plasma sprayed coating. The implant system is provided with instrumentation necessary to complete the procedures for which the system is indicated. The components are intended to be implanted together as a system, not individually as hemi-arthroplasty components and are intended for cemented fixation.
    AI/ML Overview

    The Integra® Freedom Wrist Arthroplasty System is a medical device, and the provided document is a 510(k) summary for its clearance. This summary details non-clinical tests performed to demonstrate substantial equivalence to previously cleared devices. It does not describe a study involving human subjects, AI systems, or the specific criteria typically associated with clinical performance evaluation of an AI/ML device.

    Therefore, the requested information components related to AI/ML device studies (such as sample sizes for test/training sets, data provenance, number/qualifications of experts, adjudication methods, MRMC studies, standalone performance, and ground truth establishment for training data) are not applicable to this document. This document focuses on the mechanical and material performance of the implant itself.

    Here's a breakdown of the available information based on the provided text:

    1. Table of Acceptance Criteria and Reported Device Performance

    The document states that "The results of these performance tests met their respective acceptance criteria." However, it does not provide the specific numerical acceptance criteria for each test, only that the device met them.

    TestReported Device Performance
    Fatigue Life TestMet acceptance criteria
    Carpal Poly Bearing RemovalMet acceptance criteria
    Movement to InstabilityMet acceptance criteria
    Axial Screw Pull-out (ASTM F543)Met acceptance criteria
    Insertion Torque (ASTM F543)Met acceptance criteria
    Breaking Torque (ASTM F543)Met acceptance criteria
    Breaking Angle (ASTM F543)Met acceptance criteria
    Shear Fatigue Strength (ASTM F1160)Met acceptance criteria
    Static Shear Strength (ASTM F1044)Met acceptance criteria
    Static Tensile (ASTM F1147)Met acceptance criteria
    Abrasion (ASTM F1978)Met acceptance criteria

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

    Not applicable. The tests mentioned are non-clinical (mechanical/material performance) rather than studies on a "test set" of patient data.

    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 AI/ML, refers to clinically validated diagnoses or outcomes. These are non-clinical engineering tests.

    4. Adjudication Method for the Test Set

    Not applicable. Adjudication methods are used in clinical trials or expert review processes for diagnostic accuracy, not physical device testing.

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

    No, an MRMC comparative effectiveness study was not done. This is a non-clinical device clearance for a physical implant, not an AI/ML diagnostic or assistive tool.

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

    No, a standalone algorithm performance study was not done. This refers to the performance of an AI/ML algorithm without human intervention, which is not relevant to this physical implant.

    7. The Type of Ground Truth Used

    Not applicable in the AI/ML context. For these non-clinical tests, "ground truth" would be the objectively measured physical properties/performance of the device under specific test conditions (e.g., maximum load bearing before failure, precise wear rates). The standards referenced (ASTM F543, F1160, F1044, F1147, F1978) define the methods for establishing these objective measurements.

    8. The Sample Size for the Training Set

    Not applicable. There is no AI/ML "training set" for this physical device.

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

    Not applicable. There is no AI/ML "training set" for this physical device.

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    K Number
    K080426
    Date Cleared
    2008-07-29

    (160 days)

    Product Code
    Regulation Number
    888.3800
    Reference & Predicate Devices
    Why did this record match?
    510k Summary Text (Full-text Search) :

    Classification Name:

    Wrist joint metal/polymer semi-constrained cemented prosthesis (21 CFR 888.3800
    JUL 2 9 2008

    Re: K080426 Trade/Device Name: Maestro Wrist Fracture Implant Regulation Number: 21 CFR 888.3800

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

    The Maestro™ Total Wrist System is indicated for use as a replacement of wrist joints disabled by pain, deformity and/or limited motion caused by:

    1. Non-inflammatory degenerative joint disease including osteoarthritis, traumatic arthritis and avascular necrosis.
    2. Rheumatoid arthritis.
    3. Revision where other devices or treatments have failed.
    4. Scapholunate Advanced Collapse (SLAC) and other functional deformities.
    5. Trauma, including fractures of the distal radius and/or carpal bones.

    The radial and carpal components are intended to be implanted with bone cement.

    Device Description

    The Maestro™ Wrist Fracture Replacement System consists of a two piece radial component and a molded carpal bearing component for total wrist replacement. The radial component is composed of a distal body with a modular stem. The distal bodies have a highly polished bearing surface located anatomically. The Maestro™ Tapered Carpal Component is composed of three subcomponents - a carpal head, a carpal plate and a capitate stem. The carpal head is composed of polyethylene molded on to a metallic base. The carpal plate has a male taper which mates with a female taper in the carpal head. The plate features threaded screw holes that mate with the heads of spherical locking screws. Screws are available with both fixed and variable heads. The variable screws allow the surgeon to angle the screws upon insertion while still locking the screws to the plate. The capitate stem then screws into internal threads on the reverse side of the taper on the carpal plate to complete the implant.

    AI/ML Overview

    The provided text is a 510(k) Summary for a medical device called the Maestro™ Wrist Fracture Implant. This type of regulatory submission focuses on demonstrating substantial equivalence to a legally marketed predicate device, rather than proving the device meets specific acceptance criteria through a clinical study.

    Therefore, the document explicitly states: "Clinical Testing: None provided as a basis for substantial equivalence."

    Because no clinical testing was performed or provided, I cannot provide the requested information regarding acceptance criteria and a study that proves the device meets those criteria. The information requested in your prompt (e.g., sample size, ground truth, expert qualifications, MRMC study, standalone performance, training set details) is typically found in clinical study reports, which are absent in this submission.

    The document only mentions "Non-clinical laboratory testing was performed to determine substantial equivalence. The results indicated that the device was functional within its intended use." However, it does not provide details on the specific acceptance criteria for this non-clinical testing or the results themselves in a structured format.

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    K Number
    K042032
    Manufacturer
    Date Cleared
    2004-10-07

    (71 days)

    Product Code
    Regulation Number
    888.3800
    Reference & Predicate Devices
    Why did this record match?
    510k Summary Text (Full-text Search) :

    Name:

    Classification Name: Wrist joint metal/polymer semi-constrained cemented prosthesis (21 CFR 888.3800
    0587

    Re: K042032

    K042052
    Trade/Device Name: Maestro™ Total Wrist System Regulation Number: 21 CFR 888.3800

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

    The Maestro™ Total Wrist System is indicated for use as a replacement of wrist joints disabled by pain, deformity and/or limited motion caused by:

    1. Non-inflammatory degenerative joint disease including osteoarthritis, traumatic arthritis and avascular necrosis
    2. Rheumatoid arthritis
    3. Revision where other devices or treatments have failed
    4. Scapholunate Advanced Collapse (SLAC) and other functional deformities
    5. Trauma, including fractures of the distal radius and/or carpal bones
      The device is intended to be implanted with bone cement.
    Device Description

    The Maestro™ Total Wrist System consists of a two piece radial component with a molded bearing and a three-piece carpal component. The radial component is composed of a distal body with a modular stem. The distal bodies come in three sizes and have a molded polyethylene bearing surface. The stem is modular, assembled in the operating room by a screw assembly. The carpal component consists of a carpal head, a carpal plate and a capitate stem. The carpal head comes in 3 heights, standard, +2 and +4. This allows the surgeon to adjust for soft tissue laxity. Two lengths of carpal plates give the surgeon options of screw placement. Like the radial stems, the capitate stems screw to the plate and head.

    AI/ML Overview

    The provided text is a 510(k) summary for the Maestro™ Total Wrist System, which is a medical device. This type of document is for premarket notification to the FDA to demonstrate substantial equivalence to a legally marketed predicate device, not typically a report of a study proving a device meets acceptance criteria in the way a clinical trial or performance study for an AI/software device would.

    Therefore, many of the requested details, particularly those related to AI/software performance studies, ground truth establishment, sample sizes for test and training sets, expert adjudication, and MRMC studies, are not applicable to this 510(k) submission for a non-AI/software medical device.

    However, I can extract the relevant information regarding the non-clinical testing and general acceptance criteria as much as possible from the provided text.

    Here's the breakdown:

    1. Table of Acceptance Criteria and Reported Device Performance

    Acceptance Criteria (Implied)Reported Device Performance
    Safety and effectiveness similar to predicate devicesN/A - Demonstrated substantial equivalence to Ten (DePuy Orthopedics, Inc.) – K031203 and Blax™ A.F. Wrist System (Biomet Orthopaedics) - K020554 & K030037. This is the primary "acceptance criterion" for a 510(k).
    Ability to function under expected clinical conditions"Mechanical testing has demonstrated the device's ability to [perform] under expected clinical conditions."
    Overall design, materials, surface finishes, and processing"The overall design, materials, surface finishes and processing of the Maestro™ Total Wrist are similar or identical to the predicate devices."

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

    • Sample Size: Not applicable. No "test set" in the context of a clinical performance study for an AI/software device is mentioned. The submission relies on substantial equivalence to existing devices and mechanical testing.
    • Data Provenance: Not applicable.

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

    • Not applicable. No "ground truth" establishment in this context is described.

    4. Adjudication method 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

    • Not applicable. This is not an AI/software device, and no MRMC study is mentioned.

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

    • Not applicable. This is not an AI/software device.

    7. The type of ground truth used

    • Not applicable in the context of AI/software performance. For this non-AI device, the "ground truth" for acceptance is essentially the safety and effectiveness profile demonstrated by the predicate devices and confirmed by non-clinical (mechanical) testing, not by expert consensus on clinical data for the new device.

    8. The sample size for the training set

    • Not applicable. This is not an AI/software device.

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

    • Not applicable. This is not an AI/software device.

    Study Proving Device Meets Acceptance Criteria

    The study that "proves" the device meets the acceptance criteria (in the context of a 510(k) for this type of device) is Non-Clinical Mechanical Testing.

    • Description of the Study: "Mechanical testing has demonstrated the device's ability to [perform] under expected clinical conditions." The document does not provide details of the mechanical testing protocols, specific acceptance values (e.g., fatigue cycles, load limits), or results beyond this summary statement.
    • Conclusion: The results of this mechanical testing, along with the demonstration of substantial equivalence in design, materials, and processing to the predicate devices, were sufficient for the FDA to determine substantial equivalence and clear the device for marketing.

    Note: This 510(k) summary explicitly states: "Clinical Testing: None provided." This further confirms that no human clinical trials or performance studies were conducted to support this specific submission.

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    K Number
    K031203
    Date Cleared
    2003-07-14

    (89 days)

    Product Code
    Regulation Number
    888.3800
    Reference & Predicate Devices
    Why did this record match?
    510k Summary Text (Full-text Search) :

    |
    | Classification: | Class II Device per 21 CFR 888.3800
    Wrist System Regulation Number: 21 CFR 888.3800 Regulation Name: Wrist joint metal/polymer semi-constrained

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

    The DePuy Biax A.F. Wrist System is intended to give patients limited wrist mobility by reducing pain, restoring alignment and replacing the flexion and extension movement in the wrist joint.

    The DePuy Biax A.F. Wrist System is indicated for use as a replacement of wrist joints disabled by rheumatoid arthritis with pain, deformity and/or limited motion, degenerative or post-traumatic arthrosis, ankylosis of the wrist in malposition and advanced instability with carpal destruction

    The DePuy Biax A.F. Wrist System is also indicated for revision of a failed previous wrist surgery.

    CAUTION: The DePuy Biax A.F. Wrist System is for cemented use only.

    Device Description

    The Biax A.F. Wrist System is a cemented, multiple component system to be used for the treatment, and revision, of wrist joints:
    • The radial implant stem is made of ASTM F-75 Orthochrome with an articulating surface of UHWMPe. It is available in small, medium and large sizes.
    • The 5-piece metacarpal implant is manufactured from F-75 Orthochrome and Titanium (Ti-6Al-4V ELI). It consists of a fixation plate, cemented and held in place with a central stem and two peripheral screws, and attached to an articulating head. All parts are available in a variety of sizes.

    AI/ML Overview

    The provided text is a 510(k) summary for a medical device called the "Biax A.F. Wrist System", a wrist prosthesis. This type of document focuses on establishing substantial equivalence to a legally marketed predicate device rather than presenting a performance study with acceptance criteria in the way a diagnostic AI would.

    Therefore, the document does not contain the information requested regarding acceptance criteria and a study proving the device meets them, as it relates to a diagnostic AI device.

    Specifically, it lacks details on:

    1. A table of acceptance criteria and reported device performance.
    2. Sample sizes for test sets, data provenance, number of experts for ground truth, adjudication methods.
    3. Multi-reader multi-case (MRMC) comparative effectiveness studies or standalone algorithm performance.
    4. Type of ground truth used (e.g., pathology, outcomes data).
    5. Sample size for the training set or how ground truth for the training set was established.

    Instead, the document primarily discusses the device's indications for use, its components, and its substantial equivalence to previously cleared predicate devices based on identical intended use, materials, sterilization, packaging, and design features.

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