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510(k) Data Aggregation

    K Number
    K242744
    Manufacturer
    Date Cleared
    2025-06-05

    (267 days)

    Product Code
    Regulation Number
    888.3358
    Reference & Predicate Devices
    Why did this record match?
    Applicant Name (Manufacturer) :

    Corin USA Limited

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

    The indications for the Trinity™ EVO Acetabular Shell as a total hip arthroplasty include:

    • Non-inflammatory degenerative joint disease including osteoarthritis and avascular necrosis.
    • Rheumatoid arthritis.
    • Correction of functional deformity.
    • Developmental dysplasia of the hip (DDH)/Congenital dislocation of the hip (CDH)

    The Trinity™ EVO acetabular shell is also indicated for use in revisions of a previously failed total hip arthroplasty.

    The Trinity™ EVO Acetabular Shell is indicated for cementless use only.

    Device Description

    The Trinity™ EVO acetabular shell forms part of a modular acetabular system. The Trinity™ EVO acetabular shell is a hemispherical press fit titanium alloy shell for use with cobalt chrome alloy (Trinity™ Dual Mobility only) or polyethylene liners and a dedicated range of ceramic and cobalt chrome alloy modular 12/14 taper femoral heads providing ceramic on polyethylene and metal on polyethylene articulations for use in total hip arthroplasty (THA) procedures using Corin metal stems with a 12/14 taper connection. The Trinity™ EVO acetabular shell has a porous structure manufactured from titanium alloy powder, produced via additive manufacturing using Laser Powder Bed Fusion (LPBF), and is available with or without an additional layer of electrochemically deposited calcium phosphate. The Trinity™ EVO acetabular shell is provided in sizes permitting the use of titanium bone screws to provide additional fixation, if required. The Trinity™ EVO acetabular shell is also available without screw holes. A titanium occluder is provided to occlude the apical introducer hole.

    The Trinity™ EVO acetabular shell is intended for use in primary and revision THA in skeletally mature patients, to provide increased mobility and reduce pain by replacing the damaged hip joint articulation when there is evidence of sufficient sound bone to seat and support the components.

    AI/ML Overview

    The provided document is a 510(k) Clearance Letter for the Trinity EVO Acetabular Shell. This type of submission focuses on demonstrating substantial equivalence to a previously cleared device, not necessarily proving clinical efficacy through a direct comparative study like a Multi-Reader Multi-Case (MRMC) study for an AI-powered diagnostic device.

    Therefore, the "acceptance criteria" and "study that proves the device meets the acceptance criteria" in this context refer to the non-clinical performance testing conducted to show that the new device performs as safely and effectively as its predicate devices, rather than a clinical trial with human readers.

    Here's a breakdown based on the provided document:

    Acceptance Criteria and Reported Device Performance

    The acceptance criteria are implied by the standards and internal protocols cited for the non-clinical testing. The device is deemed to meet these criteria if the test results demonstrate comparable or acceptable performance to the predicate devices. The document states: "The results of this testing show that the Trinity™ EVO Acetabular Shell is substantially equivalent to the predicate devices."

    Table of Acceptance Criteria and Reported Device Performance:

    Test Method (Standard/Protocol)Acceptance Criteria (Implied by standard and predicate performance)Reported Device Performance (Summary from submission)
    Static Tests
    ASTM F1044-05(2017) (Static Shear)Meets specified shear strength requirements for acetabular shells.Performance is comparable, supporting substantial equivalence.
    ISO 13314:2011 (Compression)Meets specified compression strength requirements.Performance is comparable, supporting substantial equivalence.
    ISO 7206-12:2016 (Deformation)Meets specified deformation limits without failure.Performance is comparable, supporting substantial equivalence.
    Internal Protocol (Deformation with bone foam)Meets specified deformation limits when in contact with bone foam.Performance is comparable, supporting substantial equivalence.
    ASTM F1820-22 (Liner Disassembly)Liner remains securely assembled with shell under specified forces.Performance is comparable, supporting substantial equivalence.
    DIN EN ISO 4287:1998+A1:2009 (Roughness)Surface roughness within specified limits for biocompatibility and function.Performance is comparable, supporting substantial equivalence.
    Dynamic Tests
    ASTM F1978-22 (Taber Abrasion)Abrasion resistance comparable to predicate.Performance is comparable, supporting substantial equivalence.
    ASTM F3090-20 (Shell Fatigue)Withstands specified fatigue cycles without failure.Performance is comparable, supporting substantial equivalence.
    Additional Testing
    Internal Protocol (Cadaveric Testing)Demonstrates acceptable fit, function, and surgical handling in simulated use.Performance is comparable, supporting substantial equivalence.
    ASTM F1854-15 (Porous Structure Characterization)Porosity, pore size, and interconnectivity within specified range.Performance is comparable, supporting substantial equivalence.
    ASTM F2459-18 (Residual Powder Gravimetric Testing)Residual powder levels below specified limits.Performance is comparable, supporting substantial equivalence.
    Internal Protocol (MicroCT Porous Structure Characterization)Detailed porous structure characteristics meet design specifications.Performance is comparable, supporting substantial equivalence.
    Internal Protocols (Screw Pull Through Testing)Screw retention strength meets specified requirements.Performance is comparable, supporting substantial equivalence.
    BET (Bacterial Endotoxin Testing)Endotoxin levels below specified limits for sterile medical devices.Meets sterilization requirements, within acceptable endotoxin limits.

    Study Information Specific to the Device Clearance (non-clinical)

    The information provided in the 510(k) summary focuses on non-clinical testing. Questions related to "test set," "data provenance," "experts," "adjudication," "MRMC studies," "standalone algorithm performance," and "ground truth" are not applicable in the context of this specific regulatory submission as it's for a physical orthopedic implant, not a diagnostic AI software.

    However, based on the general structure, here's what can be inferred or stated as "Not Applicable" for this type of device:

    1. Sample size used for the test set and the data provenance:

      • Test Set Sample Size: For mechanical testing, the "sample size" refers to the number of physical devices or representative specimens tested per condition, as per the respective ASTM/ISO standards. This specific number is not disclosed in the provided summary but would be detailed in the full submission.
      • Data Provenance: The data provenance is from the manufacturing and testing facility of Corin USA Limited, a medical device manufacturer. The tests are "non-clinical" and conducted on physical prototypes/products.
    2. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:

      • Not Applicable. This is a physical device, and "ground truth" is established by physical measurements and performance against established engineering standards and specifications, not expert interpretation of medical images or clinical outcomes in a diagnostic context. The "experts" involved would be engineers, materials scientists, and quality assurance personnel.
    3. Adjudication method (e.g., 2+1, 3+1, none) for the test set:

      • Not Applicable. Adjudication relates to resolving discrepancies in expert interpretations, which is relevant for diagnostic studies, not mechanical testing. Test results are objective measurements compared against predefined limits.
    4. 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 study is relevant for evaluating the impact of AI algorithms on human reader performance in diagnostic tasks. This device is a passive, physical implant.
    5. If a standalone (i.e. algorithm only without human-in-the loop performance) was done:

      • Not Applicable. This is a physical orthopedic implant, not a software algorithm.
    6. The type of ground truth used (expert consensus, pathology, outcomes data, etc.):

      • Engineering Standards and Specifications. The "ground truth" for the device's performance is defined by established international standards (ASTM, ISO) and internal engineering design specifications that ensure the device's mechanical integrity, biocompatibility, and functional characteristics are met.
    7. The sample size for the training set:

      • Not Applicable. This is a physical device, not an AI/ML algorithm that requires a "training set." The design and manufacturing processes are refined through engineering development and quality control, not machine learning.
    8. How the ground truth for the training set was established:

      • Not Applicable. (See point 7).

    In summary, the 510(k) for the Trinity EVO Acetabular Shell demonstrates "substantial equivalence" based on extensive non-clinical (mechanical, materials, and physical) testing to established engineering standards, asserting that it performs as safely and effectively as its predicate devices, rather than through clinical studies involving human readers or AI algorithms.

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    K Number
    K241808
    Manufacturer
    Date Cleared
    2025-01-07

    (200 days)

    Product Code
    Regulation Number
    892.2050
    Reference & Predicate Devices
    Why did this record match?
    Applicant Name (Manufacturer) :

    Corin USA Limited

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

    ApolloHipX is indicated for use in assisting in Total Hip Replacement in which the use of radiological imaging may be appropriate.

    Device Description

    ApolloHipX is a non-invasive intra-operative, image processing software intended to precisely measure the position of total hip replacement (THR) components. The software operates as a near-real time assistive device for THR, measuring component alignment, to assist in precise placement of THR components. The software is intended to be installed on certified hardware (Apollo Station) located outside the patient field. This is accomplished by:
    • Transfer of intra-operative 2D imaging of the patient from a capture source e.g. an X-ray machine
    • Registration of the 3D pre-operative patient data to the 2D intra-operative patient imaging
    • Calculation and display of the component alignment (for final implants as well as intra-operative instruments e.g., broaches and trials) which can be compared to pre-operative target positions.
    ApolloHipX is intended to precisely measure the position of THR components by measuring implant positions relative to bone structures identifiable from radiological images and providing information on component alignment.
    Clinical judgment and experience of an orthopaedic surgeon are required to properly interpret the results from the software. The software is not for primary image interpretation.The Apollo Station is the physical structure used to host the power supply and contains two user interfaces (monitor and tablet) from which the user can interact with the software applications. It also houses non-surgical Software that manages the user authentication, system access, data transfer of surgical inputs and communication to Corin's cloudhosted ecosystem. The Apollo Station connects to the imaging device intra-operatively to receive the 2D radiological images.

    AI/ML Overview

    The provided text describes the ApolloHipX device and its clearance (K241808) by the FDA. However, it does not contain detailed information about the acceptance criteria and the specific study findings in the format requested.

    The document is primarily a 510(k) summary, which focuses on demonstrating substantial equivalence to a predicate device (JointPoint K160284). While it mentions "Non-Clinical testing conducted to determine substantial equivalence," and lists several studies like "Algorithm Accuracy Study," it does not provide the acceptance criteria table or the detailed study results that prove the device meets these criteria. It also explicitly states "Not Applicable. No clinical testing performed to support substantial equivalence."

    Therefore, based solely on the provided text, I cannot complete most of the requested information.

    Here's what can be inferred/extracted from the provided text, and what is missing:


    Acceptance Criteria and Device Performance:

    A table of acceptance criteria and reported device performance is not provided in this document. The document lists "Algorithm Accuracy Study" as one of the non-clinical tests, implying that accuracy was measured, but no specific criteria or results are detailed.


    Study Information (Based on available text):

    • Sample size used for the test set and the data provenance: Not specified. The document mentions non-clinical tests including "Algorithm Accuracy Study," "Sawbone study," and "Cadaveric evaluation." The specific number of cases/samples in these studies is not provided, nor is the origin of the data (e.g., country of origin, retrospective/prospective).
    • Number of experts used to establish the ground truth for the test set and the qualifications of those experts: Not specified. No information is given about the experts involved in establishing ground truth for any of the non-clinical studies.
    • Adjudication method (e.g. 2+1, 3+1, none) for the test set: Not specified.
    • 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 study was done. The document states, "No clinical testing performed to support substantial equivalence." The device is intended to assist a surgeon ("Clinical judgment and experience of an orthopaedic surgeon are required to properly interpret the results from the software. The software is not for primary image interpretation."), but there's no study described on human performance with/without the device.
    • If a standalone (i.e. algorithm only without human-in-the-loop performance) was done: An "Algorithm Accuracy Study" was performed, which would be a standalone assessment. However, the results and specific metrics for this study are not provided.
    • The type of ground truth used (expert consensus, pathology, outcomes data, etc.): For the "Algorithm Accuracy Study," the type of ground truth is not specified. Given it's a non-clinical study for a measurement device, it likely involved highly precise measurements from physical models (sawbones or cadavers) or highly accurate imaging, but the exact method isn't detailed.
    • The sample size for the training set: Not specified. The document describes non-clinical tests but does not provide details on the training data used for the algorithm's development.
    • How the ground truth for the training set was established: Not specified.

    Summary of what is Lacking (and crucial for a complete answer):

    The provided FDA 510(k) clearance letter and summary confirm the device's clearance and its intended use as a measurement assistance tool for Total Hip Replacement. However, it explicitly states that no clinical testing was performed. While non-clinical tests like "Algorithm Accuracy Study" are mentioned, the document lacks the specific acceptance criteria, detailed results, sample sizes, ground truth methodology (for both test and training sets), and expert qualifications/adjudication methods that would describe how the device met its performance goals. This information is typically found in the detailed study reports submitted to the FDA, not necessarily in the public 510(k) summary.

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    K Number
    K241472
    Device Name
    Icona Hip Stem
    Manufacturer
    Date Cleared
    2024-10-03

    (132 days)

    Product Code
    Regulation Number
    888.3353
    Why did this record match?
    Applicant Name (Manufacturer) :

    Corin USA Limited

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

    The indications for the Corin Icona Hip Stem as a total hip arthroplasty, and when used in combination with a Corin hemiarthroplasty head, as a hip hemiarthroplasty, include:

    • · Non-inflammatory degenerative joint disease including osteoarthritis and avascular necrosis
    • Rheumatoid arthritis
    • · Correction of functional deformity
    • · Treatment of non-union and femoral neck fractures
    • Developmental dysplasia of the hip (DDH) / congenital dysplasia of the hip (CDH)

    The Corin Icona Hip Stem is indicated for cementless use only.

    Device Description

    The Corin Icona Hip Stem is a tapered stem design manufactured from Titanium alloy (Ti6Al4V) (ASTM F136) with a layer of commercially pure titanium (ISO 5832-2, ASTM F1580) and an additional layer of electrochemically deposited calcium phosphate (ASTM F1609) applied.

    The Icona Hip Stem is intended for use in hemiarthroplasty and total hip arthroplasty in skeletally mature patients, to provide increased mobility and reduce pain by replacing the damaged hip joint articulation where there is evidence of sufficient sound bone to seat and support the components.

    The design is a fully-coated titanium femoral hip stem featuring a polished neck with 12/14 tapered male trunnion for assembly with Corin modular femoral head components. Additionally, the Icona stem features a trapezoidal, tripled tapered body, providing for rotational and axial stability.

    The Icona Hip Stem is a collared stem available in two different offsets (Standard and Lateralised) and twelve (12) different sizes, totaling 24 options.

    The Icona Hip Stem is compatible with the following acetabular systems:

    · Traditional – Trinity (K093472, K110087, K111481, K122305, K130128, K130343, K131647) and Trinity PLUS (K17255) · Dual mobility - Trinity Dual Mobility (K170359) and MobiliT (K191831)

    · Bipolar - Bipolar-i (K183114)

    AI/ML Overview

    This document is a 510(k) Premarket Notification from the FDA for a hip stem device (Icona Hip Stem). It does not describe an AI/ML medical device, but rather a traditional medical device (hip implant). Therefore, much of the requested information regarding acceptance criteria and studies for AI/ML performance metrics (like sample size for test/training sets, experts for ground truth, MRMC studies, standalone performance, etc.) is not applicable to this document.

    However, I can extract the relevant information regarding the traditional device's performance criteria and supporting studies as presented in the document:

    1. Table of Acceptance Criteria and Reported Device Performance

    Acceptance Criteria CategorySpecific Test/Performance MetricReported Device Performance / Compliance
    Mechanical PerformanceDistal stem fatigue (ISO 7206-4)Results show the device is substantially equivalent to predicate devices.
    Neck fatigue (ISO 7206-6)Results show the device is substantially equivalent to predicate devices.
    Range of motion (ROM) (ISO 21535)Cadaveric evaluation demonstrated performance.
    Impingement performanceEngineering rationale provided.
    Femoral head disassembly and corrosion performanceEngineering rationale provided.
    BiocompatibilityMaterial: Titanium alloy (Ti6Al4V) (ASTM F136), commercially pure titanium (ISO 5832-2, ASTM F1580), electrochemically deposited calcium phosphate (ASTM F1609)Materials are industry standards and consistent with predicate devices, supporting biocompatibility by equivalence.
    Indications for UseFunctional equivalence for: Non-inflammatory degenerative joint disease (osteoarthritis, avascular necrosis), Rheumatoid arthritis, Correction of functional deformity, Treatment of non-union and femoral neck fractures, Developmental dysplasia of the hip (DDH) / congenital dysplasia of the hip (CDH). Indicated for cementless use only.The Icona Hip Stem is "substantially equivalent" to predicate devices (Actis DuoFix, TriFit CF, Metafix, OMNI MOD Hip System) in terms of intended use and indications, with the exception of OMNI MOD Hip Stem which is also indicated for revision.
    Design EquivalencyTapered stem design, fully-coated titanium femoral hip stem, polished neck, 12/14 tapered male trunnion, trapezoidal triple tapered body, two offsets (Standard and Lateralised), twelve sizes (24 options).Substantially equivalent to predicate devices Actis DuoFix Hip Prosthesis (K150862) (material, triple-taper geometry, collar design, stem sizes), TriFit CF (K173880) (material, coating, taper design, neck geometry), OMNI MOD Hip System (K000788, K201657) (material, neck geometry, finish), and MetaFix Hip Stem (K082525, K121439, K153381, K212069) (intended use, indications, material, neck geometry, taper design, packaging).

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

    This information is typically not provided in detail within a 510(k) summary for mechanical testing of traditional orthopedic implants. The document states "Non-clinical testing and rationales provided to support substantial equivalence," but does not specify sample sizes for these mechanical tests (e.g., number of stems tested for fatigue).

    • Provenance: The tests are non-clinical (laboratory/mechanical testing), not patient data.

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

    Not applicable for a traditional orthopedic implant's mechanical testing or equivalence comparison to predicate devices. "Ground truth" in this context would refer to established engineering standards (ISO, ASTM) and the performance of predicate devices.

    4. Adjudication Method

    Not applicable for this type of device submission. Adjudication is relevant for expert review of data, often in clinical studies or for AI ground truth establishment.

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

    No, this is not an AI/ML device, so an MRMC study comparing human readers with and without AI assistance is not applicable.

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

    No, this is not an AI/ML device.

    7. The Type of Ground Truth Used

    For this traditional device, the "ground truth" used to establish substantial equivalence is primarily:

    • Established engineering standards: ISO 7206-4, ISO 7206-6, ISO 21535, ASTM F136, ASTM F1580, ASTM F1609. The device's performance in these tests is compared against the performance of the predicate devices or the requirements of these standards.
    • Performance of legally marketed predicate devices: The Icona Hip Stem's design, materials, and mechanical performance are compared to those of already cleared predicate devices. Substantial equivalence implies that the new device performs as safely and effectively as the predicate.

    8. The Sample Size for the Training Set

    Not applicable, as this is not an AI/ML device; there is no "training set."

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

    Not applicable, as there is no "training set."

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    K Number
    K241570
    Manufacturer
    Date Cleared
    2024-09-23

    (115 days)

    Product Code
    Regulation Number
    888.3560
    Reference & Predicate Devices
    Why did this record match?
    Applicant Name (Manufacturer) :

    Corin USA Limited

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

    The Unity Total Knee System is intended for use in total knee arthroplasty in skeletally mature patients, to provide increased mobility and reduce pain by replacing the damaged knee joint articulation where there is sufficient sound bone to seat and support the components.

    The General total knee arthroplasty indications include:

    · Painful, disabling joint disease of the resulting from: degenerative arthritis, theumatoid arthritis or post-traumatic arthritis

    · Post-traumatic loss of knee joint configuration and function

    • · Moderate varus, valgus, or flexion deformity in which the ligamentous structures can be returned to adequate function
    • · Revision of previous unsuccessful knee replacement or other soft tissue stability is adequate
    • · Fracture of the distal femur and/or proximal tibia that cannot be standard fracture management techniques
    • · The posterior stabilized variant is also indicated for PCL instability requiring implant bearing surface with
    • increased anterior-posterior constraint and absent or non-functioning posterior cruciate ligament

    The Unity Total Knee System is intended for cemented use, single use only.

    Device Description

    The Unity Total Knee System is a fixed bearing total knee replacement system that consists of a cobalt chromium alloy (CoCr) femoral component, a UHMWPE (Ultra-High-Molecular-Weight-Polyethylene) or ECiMa (Vitamin E enriched advanced polyethylene) tibial tray with a titanium alloy keel extension and all-polyethylene (UHMWPE) patellar component for use in primary and revision total knee arthroplasty. The Unity Total Knee System femoral component is provided in two variants, cruciate retaining (CR) and posterior stabilised (PS).

    • The CR femoral component is intended for use in conjunction with the CR tibial insert or Medial Constrained (MC) tibial insert where the posterior cruciate ligament (PCL) is functional or in conjunction with a Condylar Stabilised (CS) tibial insert or MC tibial insert where the PCL is present but is lax or non-functioning or when the PCL is absent.
    • The PS femoral component is intended for use in conjunction with the PS tibial insert where the posterior cruciate ligament is non-functioning or absent, resulting in joint instability, or in conjunction with the constrained posterior-stabilized (PS-C) tibial insert where is instability of the lateral collateral ligament and/or medial collateral ligament (LCL/MCL).

    The Unity Total Knee System patellar component is optional and for use with either the CR or PS femoral variants and is intended for use where replacement of the articular surface of the patella is required. The system also provides titanium alloy augments including femoral augments, tibial augments, stem extensions and offset adapters.

    The Unity Total Knee System is intended for use in total knee arthroplasty in skeletally mature patients, to provide increased mobility and reduce pain by replacing the joint articulation where there is evidence of sufficient sound bone to seat and support the components.

    The Unity Total Knee system was originally cleared in K113060. This submission is for the inclusion of an additional range of Unity Knee MC Tibial Inserts. The additional range of tibial inserts has the same intended purpose as those cleared in the original 510(k) submission (K113060).

    AI/ML Overview

    The provided document is a 510(k) Premarket Notification from the FDA for the "Unity Total Knee System." It primarily focuses on demonstrating substantial equivalence to previously cleared predicate devices, rather than on a clinical study proving device meets specific acceptance criteria in the way a de novo or PMA submission might.

    However, it does outline the non-clinical tests performed to support substantial equivalence. While it doesn't present acceptance criteria and reported performance in a table with specific thresholds, it implies that the device met the requirements of the standards and analyses conducted.

    Here's an attempt to structure the information based on your request, understanding that the scope of this document is a 510(k) and not a detailed clinical study report:

    1. Table of Implied Acceptance Criteria and Reported Device Performance

    Acceptance Criteria (Implied from standards)Reported Device Performance (Implied from "Non-Clinical and/or Clinical Tests Summary")
    Conformity to ASTM F1223-20 for Constraint DeterminationConstraint determination performed in accordance with ASTM F1223-20. (Implied successful)
    Conformity to ISO 21536:2023 for Range of MotionRange of motion CAD assessment performed in accordance with ISO 21536:2023. (Implied successful)
    Conformity to ISO 21536:2023 for Contact PressureContact pressure analysis performed in accordance with ISO 21536:2023. (Implied successful)
    Conformity to ASTM F2723-21 for Dynamic DisassociationDynamic disassociation testing performed in accordance with ASTM F2723-21. (Implied successful)
    Usability requirements metUsability testing performed. (Implied successful)
    Wear characteristics comparable to predicateWear assessment rationale conducted. (Implied acceptable wear characteristics)
    Micromotion comparable to predicateMicromotion assessment from original Unity Total Knee System (K113060) is applicable. (Implied successful)
    Material properties comparable to predicateMaterial characterization from Apex Knee ECiMa tibial insert (K201611) is applicable. (Implied successful)

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

    This document does not specify sample sizes for mechanical testing. For example, for "Constraint determination," it doesn't state how many implants were tested.

    • Sample Size (Test Set): Not explicitly stated for each test, but implied to be sufficient for the non-clinical tests mentioned.
    • Data Provenance: Not explicitly stated (e.g., country of origin), but the tests are non-clinical (laboratory-based) and not human subject data. Retrospective/Prospective is not applicable to these types of non-clinical tests.

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

    Not applicable. The ground truth for these non-clinical tests is established by the accepted scientific and engineering principles codified in the referenced ASTM and ISO standards, and by established scientific methods, not by expert consensus on clinical cases.

    4. Adjudication Method for the Test Set

    Not applicable. Adjudication methods like 2+1 or 3+1 are typically used for clinical data interpretation or image annotation, not for mechanical or material testing of devices. The "judgment" for these tests comes from adherence to the test standard and engineering analysis.

    5. If a Multi Reader Multi Case (MRMC) Comparative Effectiveness Study Was Done

    No. This document does not describe an MRMC comparative effectiveness study. The submission is for a 510(k) clearance based on substantial equivalence, which often relies on non-clinical performance and comparison to predicate devices rather than direct human clinical trials for effectiveness in the same way a new drug or novel device might require.

    6. If a Standalone (Algorithm Only Without Human-in-the-Loop Performance) Was Done

    Not applicable. This is a physical medical device (total knee system), not an AI algorithm.

    7. The Type of Ground Truth Used

    The "ground truth" for the non-clinical tests is based on:

    • Standardized Test Methods: Adherence to established ASTM (American Society for Testing and Materials) and ISO (International Organization for Standardization) standards (e.g., ASTM F1223-20, ISO 21536:2023, ASTM F2723-21). These standards define procedures and acceptable performance metrics.
    • Engineering Principles and Benchmarking: Comparison to known performance characteristics of the legally marketed predicate devices, as well as established material properties.

    8. The Sample Size for the Training Set

    Not applicable. This is a physical medical device, not an AI model or software algorithm that would require a training set.

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

    Not applicable for the reasons mentioned in point 8.

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    K Number
    K240875
    Manufacturer
    Date Cleared
    2024-06-26

    (89 days)

    Product Code
    Regulation Number
    888.3560
    Reference & Predicate Devices
    Why did this record match?
    Applicant Name (Manufacturer) :

    Corin USA Limited

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

    The Unity Knee™ PS-C Tibial Insert is intended for use in the Unity Total Knee arthroplasty in skeletally mature patients, to provide increased mobility and reduce the damaged knee joint articulation where there is evidence of sufficient sound bone to seat and support the components.

    The General total knee arthroplasty indications include:

    · Painful, disabling joint disease of the knee resulting from: degenerative arthritis, rheumatoid arthritis or post-traumatic arthritis

    · Post-traumatic loss of knee joint configuration and function

    • · Moderate varus, valgus, or flexion deformity in which the ligamentous structures can be returned to adequate function
    • · Revision of previous unsuccessful knee replacement or other soft tissue stability is adequate
    • · Fracture of the distal femur and/or proximal tibia that cannot be standard fracture management techniques
    • · The posterior stabilized variant is also indicated for PCL instability requiring implant bearing surface with
    • increased anterior-posterior constraint and absent or non-functioning posterior cruciate ligament

    The Unity Total Knee System is intended for cemented use, single use only.

    Device Description

    The Unity Total Knee System is a fixed bearing total knee replacement system that consists of a cobalt chromium alloy (CoCr) femoral component, an ultra-high molecular weight polyethylene (UHMWPE) tibial insert, a CoCr tibial tray with a titanium alloy keel extension and all-polyethylene patellar component for use in primary and revision total knee arthroplasty. The Unity Total Knee System femoral component is provided in two variants, cruciate retaining (CR) and posterior stabilised (PS).

    • The CR femoral component is intended for use in conjunction with the CR tibial insert where the posterior cruciate ligament (PCL) is functional or in conjunction with a Condylar Stabilised (CS) tibial insert where the PCL is present but is lax or non-functioning or when the PCL is absent.
    • . The PS femoral component is intended for use in conjunction with the PS tibial insert where the posterior cruciate ligament is non-functioning or absent, resulting in joint instability, or in conjunction with the constrained posterior-stabilized (PS-C) tibial insert where is instability of the lateral collateral ligament and/or medial collateral ligament (LCL/MCL).

    The Unity Total Knee System patellar component is optional and for use with either the CR or PS femoral variants and is intended for use where replacement of the articular surface of the patella is required. The system also provides titanium alloy augments including femoral augments, tibial augments, stem extensions and offset adapters.

    AI/ML Overview

    Here's an analysis of the provided text regarding the acceptance criteria and study proving device performance:

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

    The document does not explicitly present a table of acceptance criteria. Instead, it describes various non-clinical tests performed and states that the "results of the specific mechanical testing performed on the Unity Knee PS-C Tibial Insert show that the device is substantially equivalent to the predicate devices." This implies that the acceptance criteria are met if the new device performs comparably to the predicate devices in these tests.

    However, we can infer the tested parameters and the general outcome:

    Acceptance Criteria (Inferred from tests performed)Reported Device Performance (Implied)
    Constraint determination (according to ASTM F1223-20)Met, comparable to predicate devices.
    Range of motion CAD assessment (according to ISO 21536:2023)Met, comparable to predicate devices.
    Contact pressure analysis (according to ASTM F2083-21 and ISO 21536:2023)Met, comparable to predicate devices.
    Latch and post ultimate strength testMet, comparable to predicate devices.
    Usability testingMet.
    Micromotion assessment (from K113060)Applicable and met, comparable to predicate devices.
    Post fatigue test (from K113060)Applicable and met, comparable to predicate devices.
    Wear testing (from K113060)Applicable and met, comparable to predicate devices.

    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 describes non-clinical (mechanical) testing only. Therefore, the concept of a "test set" in the context of patient data (retrospective/prospective, country of origin) is not applicable. The sample size for mechanical tests is not explicitly stated but would refer to the number of physical samples of the device components subjected to testing. This information is typically detailed in the full test reports, which are not provided here.

    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)

    Since this is a submission for a mechanical medical device (a knee implant component), the concept of "ground truth" established by medical experts for a "test set" (e.g., image-based diagnosis) is not applicable. The ground truth for mechanical performance is established by the specifications of the predicate devices and the performance standards (ASTM, ISO). The "experts" involved would be engineers and testing technicians who design and execute the tests and analyze the results against these standards. Their qualifications are not specified in this summary.

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

    Not applicable as this is not a study involving human readers or image interpretation.

    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 document pertains to the clearance of a mechanical orthopedic implant, not an AI-assisted diagnostic device.

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

    Not applicable. As noted above, this is about a mechanical implant, not an algorithm.

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

    The ground truth for the non-clinical tests is based on established engineering standards and specifications (ASTM F1223-20, ISO 21536:2023, ASTM F2083-21) and the performance characteristics of the legally marketed predicate devices (Apex PS Knee System, PS-C Insert K111184; Unity Total Knee System K113060). The new device's performance is compared against these benchmarks to demonstrate substantial equivalence.

    8. The sample size for the training set

    Not applicable, as this is a mechanical device, not a machine learning model requiring a training set.

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

    Not applicable, as there is no training set for a mechanical device.

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    K Number
    K231172
    Device Name
    ApolloKnee
    Manufacturer
    Date Cleared
    2023-07-26

    (92 days)

    Product Code
    Regulation Number
    882.4560
    Reference & Predicate Devices
    Why did this record match?
    Applicant Name (Manufacturer) :

    Corin USA Limited

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

    ApolloKnee is indicated to aid the surgeon in locating anatomical structures and aligning endoprostheses with these anatomical structures during total knee arthroplasty.

    Apollo Robot and BalanceBot are optional accessories and are specifically indicated for use in total knee arthroplasty with the ApolloKnee system.

    ApolloKnee is compatible with the following implant systems:

    • · Apex Knee™ System.
    • · Unity Knee™ System.

    ApolloKnee is indicated for use in surgical knee procedures in which the use of stereotactic surgery may be appropriate.

    Device Description

    ApolloKnee™ (formerly OMNBotics) is a robotic-assisted stereotaxic surgery system that aids the surgeon in locating anatomical structures and aligning endoprostheses with these anatomical structures during total knee replacement (TKR). ApolloKnee is composed of eight sub-systems that integrate to form the ApolloKnee system. Four of these sub-components (Station, Tracking System, Communication Module and Nonsurgical Application) form the main structure of Corin's core platform for robotic or computer assisted surgeries. This core platform is referred to as "Apollo". Future Corin technologies are intended to be developed on the basis of the Apollo core platform. ApolloKnee is one such technology built upon the Apollo common platform. ApolloKnee includes four system specific sub-components (Apollo Robot, BalanceBot, TKR Instruments and ApolloKnee Software),

    ApolloKnee is an evolution of the former OMNIBotics Knee System. ApolloKnee is the first launched under Corin Ltd following acquisition of the OMNIBotics' prior manufacturer OMNIlife Science. ApolloKnee differs from OMNIBotics Knee System (as previously marketed under K200888) in branding (for commercial reasons), as well as redesigns of the station and software, and introduction of additional surgical instrumentation, namely the BalanceBot Pre-Resection Paddles, Tibial Cutting Guide and V-Array.

    AI/ML Overview

    This document, a 510(k) Summary for the ApolloKnee device, details the premarket notification to the FDA. However, it does not contain the specific information required to answer your prompt about acceptance criteria and a study proving the device meets them.

    The sections you've highlighted (Non-Clinical Testing, Conclusion) mention "Accuracy testing per custom protocols and ASTM F2554-22" and "surgeon user validation studies (cadaver evaluations)." While these indicate testing was performed, the document does not provide the acceptance criteria or detailed results of these studies.

    Therefore, I cannot provide the requested information from this document. It lacks:

    • A table of acceptance criteria and reported device performance.
    • Sample sizes for test sets or data provenance.
    • Number and qualifications of experts for ground truth.
    • Adjudication methods.
    • Information on MRMC studies or effect sizes.
    • Standalone performance data.
    • Specific type of ground truth used.
    • Sample size for training sets.
    • How ground truth for training was established.

    This document primarily focuses on establishing substantial equivalence to a predicate device based on design, intended use, and general non-clinical testing categories, rather than presenting a detailed clinical or performance study report with specific acceptance criteria and detailed outcomes.

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    K Number
    K212069
    Manufacturer
    Date Cleared
    2022-04-07

    (279 days)

    Product Code
    Regulation Number
    888.3353
    Reference & Predicate Devices
    Why did this record match?
    Applicant Name (Manufacturer) :

    Corin USA Limited

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

    The indications for the Corin MetaFix™ Hip Stem as a total hip arthroplasty, and when used in combination with a Corin hemi-arthroplasty head, as a hip hemi-arthroplasty, include:

    • Non-inflammatory degenerative joint disease including osteoarthritis and avascular necrosis
    • Rheumatoid arthritis
    • Correction of functional deformity
    • Treatment of non-union and femoral neck fractures
    • Developmental dysplasia of the hip (DDH) and congenital dysplasia of the hip (CDH)
      The Corin MetaFix™ Hip Stem is indicated for cementless use only.
    Device Description

    The MetaFix™ Hip is a tapered stem manufactured from titanium alloy (Ti6Al4V) with a layer of hydroxyapatite (HA) Coating applied. The MetaFix™™ Hip is available in a 135° standard offset (collared and collarless), 135° lateralized high offset (collared and collarless), a 125° standard offset (collared and collarless), a 125°short neck (collared) and a 135° short neck (collared). The device is intended to be used with 12/14 modular taper heads.
    The MetaFix™ hip is intended to provide increased patient mobility and reduce pain by replacing the damaged hip joint articulation in patients where there is evidence of sufficient sound bone to seat and support the components.

    AI/ML Overview

    I apologize, but the provided text does not contain information about the acceptance criteria and the study that proves a device meets those criteria. Instead, the document is a 510(k) premarket notification for a medical device called the "Corin MetaFix™ Hip Stem."

    This document focuses on demonstrating substantial equivalence to existing legally marketed predicate devices, rather than proving the device meets specific performance acceptance criteria through a clinical or non-clinical study in the way you've outlined.

    The key points from the provided text are:

    • Substantial Equivalence: The document asserts that the Corin MetaFix™ Hip Stem is substantially equivalent to predicate devices (other MetaFix Hip Stems). This is a regulatory pathway for medical devices in the U.S. that does not always require new clinical trials to prove efficacy or safety from scratch, but rather demonstrates it's as safe and effective as a device already on the market.
    • Non-Clinical Testing: It mentions "mechanical fatigue testing of the neck and stem" and a "range of motion assessment." These are non-clinical (laboratory) tests used to support the claim of substantial equivalence, likely ensuring the new variations perform comparably to the predicates under simulated conditions.
    • Clinical Testing: The document explicitly states: "Clinical testing was not necessary to determine substantial equivalence between the Corin MetaFix™ Lateralized Collared Hip Stem, Corin MetaFix™ Collared Short Neck Hip Stem and the predicate devices."

    Therefore, I cannot provide the information requested in your numbered points (acceptance criteria table, sample size, expert ground truth, MRMC study, standalone performance, etc.) because the scope of this FDA document is to establish substantial equivalence for a hip stem, not to validate an AI/algorithm-based device and its performance against detailed acceptance criteria that your questions imply for such a device.

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    K Number
    K191831
    Device Name
    MobiliT Cup
    Manufacturer
    Date Cleared
    2020-01-16

    (191 days)

    Product Code
    Regulation Number
    888.3353
    Reference & Predicate Devices
    Why did this record match?
    Applicant Name (Manufacturer) :

    Corin USA Limited

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

    The MobiliTTM Cup, for cemented and cementless use, are indicated for primary replacement of the hip joint:

    • In degenerative pathologies: primary, secondary or post-traumatic osteoarthritis, rheumatoid arthritis
    • -For patients who have a high risk of dislocation
    • In cases of necrosis of the femoral head -
    • In cases of fracture of the neck of the femur -
    • In cases of congenital luxation -

    The MobiliTTM Cup, for cemented and cementless use, are indicated for revision when the bone tissue remains sufficient after the removal of the previous acetabular cup.

    The cementless MobiliTTM standard Cup, with flanges and hook are indicated for cementless use only.

    The cemented MobiliT™ Cup is indicated for cemented use only.

    Device Description

    The MobiliT™ Cup is a modular system consisting of two articulating surfaces in the same joint space. The MobiliT™ Cup is a metal shell combined with a specific ECiMa™ insert. This system offers two articulating surfaces in the same joint space, one between the shell and the insert, the other between the insert and the femoral head. The shell is made of stainless with ECiMa™ (Vitamin E Ultra-High-Molecular-Weight Polyethylene) insert. A Trinity™ femoral head 22mm or 28mm CoCr, or a 28mm BIOLOX® delta articulates within the ECiMa™ insert to allow for a second articulation. The MobiliTTM Cup is designed for use with any Corin 12/14 femoral stem.

    The MobiliT™ Cup is intended for use in primary and revision total hip arthroplasty (THA) to provide increased stability and reduce pain by replacing the hip joint articulation where there is evidence of sufficient sound bone to seat and support the components.

    The MobiliT™ Cup is intended to be used with the following approved devices:

    AI/ML Overview

    This is a medical device 510(k) clearance document for the MobiliT™ Cup, a hip prosthesis. It describes the device, its intended use, and its substantial equivalence to previously cleared predicate devices.

    Here's an analysis of the provided text in relation to acceptance criteria and supporting studies:

    1. Table of Acceptance Criteria and Reported Device Performance:

    The document does not contain a table of acceptance criteria with specific numerical targets and corresponding device performance metrics. Instead, it relies on non-clinical testing to demonstrate substantial equivalence to predicate devices. The acceptance is based on the new device performing comparably to the predicate devices in various required tests.

    Acceptance Criterion (Implicit)Reported Device Performance (Summary)
    Static Tests
    Push-out strengthMet "substantially equivalent" to predicate devices
    Pull-out strengthMet "substantially equivalent" to predicate devices
    Lever-out strengthMet "substantially equivalent" to predicate devices
    Deformation (ISO 7206-12)Met "substantially equivalent" to predicate devices
    Soaking (ASTM D570 & ISO 62)Met "substantially equivalent" to predicate devices
    Dilatation (ASTM D570 & ISO 62)Met "substantially equivalent" to predicate devices
    Dynamic Tests
    Range of Motion (EN ISO 21535)Met "substantially equivalent" to predicate devices
    Wear (ISO 14242-1/2)Met "substantially equivalent" to predicate devices
    Impingement Test (ASTM 2582-14)Met "substantially equivalent" to predicate devices
    Biocompatibility
    Bacterial Endotoxin Testing (BET)Conducted using LAL kinetic chromogenic methodology; results imply compliance with safety standards.

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

    • Sample Size: Not explicitly stated as "sample size." The testing is described as "Non-Clinical Testing and Analysis," which typically involves a set number of physical samples of the device being tested according to standardized methods. The specific number of devices or components tested for each experiment (e.g., how many cups were subjected to push-out tests) is not provided.
    • Data Provenance: The data comes from non-clinical bench testing performed by the manufacturer (Corin USA Limited or its affiliates). There is no mention of country of origin for the testing data beyond the manufacturer's location. The tests are not retrospective or prospective in the clinical sense, as no human or animal subjects were involved.

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

    • Not Applicable. For a medical device 510(k) clearance based solely on non-clinical (bench) testing, there are no "experts used to establish ground truth" in the way one would for clinical image interpretation or diagnosis. The "ground truth" for these engineering tests is established by adhering to recognized international and ASTM standards (e.g., ISO 7206-12, ASTM D570, ISO 14242-1/2, ASTM 2582-14). Compliance is assessed by engineers and regulatory bodies against these standards.

    4. Adjudication Method for the Test Set:

    • Not Applicable. Adjudication methods (like 2+1, 3+1) are used in studies involving human interpretation or clinical endpoints. This document describes non-clinical engineering tests where the results are objective measurements against established standards, not subjective 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. An MRMC comparative effectiveness study was not conducted. This is a hip prosthesis, not an AI-powered diagnostic device designed to assist human readers.

    6. If a Standalone (i.e., algorithm only without human-in-the-loop performance) Was Done:

    • No. This is a physical medical implant (hip prosthesis), not an algorithm or AI device. Therefore, standalone algorithm performance is not applicable.

    7. The Type of Ground Truth Used:

    • The "ground truth" for the non-clinical tests is based on engineering standards and specifications (e.g., the force required to reach a specific deformation, wear rates within acceptable ranges as defined by ISO standards). The results are objective measurements against established pass/fail criteria derived from these standards and comparison to predicate device performance.

    8. The Sample Size for the Training Set:

    • Not Applicable. There is no "training set" in the context of this 510(k) submission. Training sets are relevant for machine learning algorithms, which is not what this device is. The development of the device likely involved engineering design, prototyping, and iterative testing, but this is distinct from an AI training set.

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

    • Not Applicable. (See point 8).
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    K Number
    K191374
    Manufacturer
    Date Cleared
    2019-07-22

    (60 days)

    Product Code
    Regulation Number
    888.3353
    Reference & Predicate Devices
    Why did this record match?
    Applicant Name (Manufacturer) :

    Corin USA Limited

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

    The Revival™ Modular Hip Stem is indicated in revision surgery of femoral components, following failure of a primary cemented prosthesis. The Revival™ Modular Hip Stem 100mm distal component is also indicated in primary total hip arthroplasty.

    The indications for the Revival™ Modular Hip Stem include:

    • . Non-inflammatory degenerative joint disease including primary and secondary osteoarthritis and hip dysplasia
    • Aseptic necrosis of the femoral head ●
    • Rheumatoid arthritis
    • Correction of functional deformity ●
    • Treatment of non-union and femoral neck fractures ●
    • Treatment of traumatic dislocations of the hip .
    • Failures of osteotomy ●
    • Treatment of arthrodesis .

    The Revival™ Modular Hip Stem is indicated for cementless, single use only.

    Device Description

    The Revival™ Modular Hip Stem is a modular stem manufactured from titanium alloy (Ti6Al4V ELI) with a proximal component, a distal component and a locking screw. The modular proximal component is available in four lengths (40, 50, 60, and 70mm) and two CCD angles (125° and 135°). The distal component is conical in shape and has longitudinal fins. The distal component design has four lengths (100, 160, 200, and 240mm) and ten diameters (14, 15, 16, 17, 18, 19, 20, 21, 22, and 24mm). The proximal and distal components are assembled using a 'Morse' taper 2 '51' so that the proximal component can be dialed into position to achieve the anteversion required. The locking screw is used to assemble and hold the 'Morse' taper cone in place. The Revival stem has a surface finish obtained by abrasion with corundum to increase the contact surface for cementless fixation. The device is intended to be used with Corin (12/14 taper) modular heads.

    The Revival™ Modular Stem was originally cleared in K152903. This submission is being made to modify the indications for use to include a primary indication and to include additional sizes to the range.

    AI/ML Overview

    This document is a 510(k) premarket notification for a hip joint prosthesis, not an AI/ML medical device. Therefore, the information requested about acceptance criteria, study design, ground truth, and human reader performance is not applicable to this document.

    The document discusses the substantial equivalence of the Revival™ Modular Hip Stem to previously cleared predicate devices. The review focuses on its design, materials, indications for use, and non-clinical testing (mechanical fatigue, static, torque, and range of motion testing; FEA; and bacterial endotoxin testing).

    The relevant sections explicitly state:

    • "Non-clinical testing and analysis included FEA, mechanical fatigue testing, static testing, torque testing, and range of motion testing." (Page 5, Section 13)
    • "Clinical testing was not necessary in this Traditional 510(k) to determine substantial equivalence between the additional components of the Revival™ Modular Hip Stem and the predicate devices." (Page 5, Section 14)

    Since this document does not describe a study involving AI/ML performance, human readers, or image analysis, I cannot provide the details requested in the prompt regarding AI/ML device testing.

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    K Number
    K183114
    Device Name
    Corin BiPolar-i
    Manufacturer
    Date Cleared
    2019-06-05

    (208 days)

    Product Code
    Regulation Number
    888.3390
    Reference & Predicate Devices
    Why did this record match?
    Applicant Name (Manufacturer) :

    Corin USA Limited

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

    The BiPolar-i is intended for use in partial hip replacement (hemiarthroplasty) to provide increased patient mobility and reduce pain by replacing the natural femoral head and to restore hip joint articulation in patients where there is evidence of a satisfactory natural acetabulum and sufficient femoral bone to seat and support the femoral stem.

    The BiPolar-i is intended for use in the following indications:

    • Non-inflammatory degenerative joint disease including osteoarthritis and avascular necrosis in which the acetabulum does not require replacement,
    • Treatment of non-union, femoral neck and trochanteric fractures of the proximal femur
    • Revision of failed partial hip replacements in which the acetabulum does not require replacement

    The BiPolar-i is indicated for cementless use only.

    Device Description

    The BiPolar-i is a preassembled bipolar head comprised of an ultra-high molecular weight polyethylene (UHMWPE) liner and a highly polished cobalt-chromium alloy (CoCr) outer shell. The BiPolar-i is used in combination with a 22mm or 28mm CoCr modular head (dependent on the BiPolar i size) and compatible hip stem, both supplied separately. When assembled, the modular head is maintained captive and articulates within the UHMWPE liner. The BiPolar-i is intended for use in partial hip replacement (hemiarthroplasty) to provide increased patient mobility and reduce pain by replacing the natural femoral head and to restore hip joint articulation in patients where there is evidence of a satisfactory natural acetabulum and sufficient femoral bone to seat and support the femoral stem. The BiPolar-i is intended for use with a Corin femoral head and hip stem prosthesis with a compatible 12/14 taper connection and is designed to articulate in the patient's natural acetabulum.

    AI/ML Overview

    The provided document is a 510(k) summary for the Corin BiPolar-i, a hip joint femoral (hemi-hip) metal/polymer prosthesis. This document focuses on demonstrating substantial equivalence to existing predicate devices based on design, materials, intended use, and non-clinical testing. It explicitly states that clinical testing was not necessary for this particular submission.

    Therefore, the requested information regarding acceptance criteria, study details (sample sizes, data provenance, expert ground truth, adjudication, MRMC studies, standalone performance), and training set information is not available within this document because a clinical study of the device's performance against pre-defined acceptance criteria was not conducted or reported for this 510(k) submission.

    This type of submission relies heavily on non-clinical testing to demonstrate that the new device performs as safely and effectively as legally marketed predicate devices, rather than establishing numerical performance metrics against acceptance criteria from a clinical trial.

    However, I can provide the non-clinical testing information that was conducted:

    1. Acceptance Criteria and Device Performance (from non-clinical testing):

    Acceptance Criteria (from recognized standards)Reported Device Performance
    ASTM F1820-13 (Pull-out & Lever-out Force)Results show substantial equivalence to the predicate device.
    Assembly TestingResults show substantial equivalence to the predicate device.
    ISO 21535:2007/Amd1:2016 (Range of Motion)Results show substantial equivalence to the predicate device.
    Evaluation of Impingement & WearResults show substantial equivalence to the predicate device.
    Bacterial Endotoxin Testing (BET)Conducted on finished, sterilized product, using Limulus Amebocyte Lystate (LAL) kinetic chromogenic methodology (results not numerically detailed but assumed to meet standards for sterility).

    2. Sample size used for the test set and the data provenance: Not applicable, as no clinical human test set was used. This refers to non-clinical laboratory testing. The document does not specify the sample sizes used for each non-clinical test.

    3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts: Not applicable, as no clinical human test set requiring expert ground truth was used.

    4. Adjudication method for the test set: Not applicable, as no clinical human test set 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. This device is a physical hip prosthesis, not an AI-assisted diagnostic tool.

    6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done: Not applicable. This device is a physical hip prosthesis, not an algorithm.

    7. The type of ground truth used: For the non-clinical testing, the "ground truth" is defined by the requirements and test methodologies outlined in the referenced ASTM and ISO standards, and the performance of the predicate device. For BET, it's the absence of bacterial endotoxins.

    8. The sample size for the training set: Not applicable, as no training set for an algorithm was used.

    9. How the ground truth for the training set was established: Not applicable, as no training set for an algorithm was used.

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