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510(k) Data Aggregation

    Why did this record match?
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    KLS Mini Osteosynthesis System (K943347): The KLS Mini Osteosynthesis System is indicated for 1) Fractures, 3) Reconstruction procedures of the craniomaxillofial skeletal system.
    KLS Chin Plate System (K943348): The KLS Chin Plate System is indicated for 1) Fractures, 3) Reconstruction procedures of the craniomaxillofacial skeletal system.
    KLS-Martin Micro Osteosynthesis System (1.0MM) (K944561): The KLS-Martin Micro Osteosynthesis System (1.0MM) is used in oral-maxillo-cranio-facial surgery to stabilize fractures. The bone segments are attached to the plate with screws to prevent movement of the segments.
    KLS-Martin Micro Osteosynthesis System (1.5MM) (K944565): The KLS-Martin Micro Osteosynthesis System (1.5MM) is used in oral-maxillo-cranio-facial surgery to stabilize fractures. The bone segments are attached to the plate with screws to prevent movement of the segments.
    KLS Martin Centre-Drive Drill-Free Screw (K971297): The KLS Martin Centre-Drive Drill-Free Screws are in rigid internal fixation of the oral-maxillo-cranio-facial bones. The bone screws are used to anchor plates which are contoured to fit the bone fragments. The addition of the self drilling feature is the only difference between the submitted device and the predicate device referenced.
    KLS-Martin Temporary Condylar Implant (K990667): The KLS-Martin Temporary Condylar Implant is only intended for temporary reconstruction of the mandibular condyle in patients who have undergone resective procedures to remove malignant or benign the removal of the mandibular condyle. This device is not for permanent implantation, for patients with TMF or treatment of temporomandibular joint disease (TMD).
    KLS-Martin Mandibular/Reconstruction System II (K032442): The KLS-Martin Mandibular/Reconstruction System II is intended for use in the stabilization of mandibular fractures and mandibular reconstruction.
    KLS-Martin Ortho Anchorage System (K033483): The KLS-Martin Ortho Anchorage System is intended to be surgically placed in the mouth for use an an anchor for orthodontic procedures.
    KLS-Martin Ortho Anchorage System (Plates) (K040891): The KLS-Martin Ortho Anchorage System (Plates) are implants intended to be surgically placed in the mouth for use as an anchor for orthodontic procedures in patients.
    KLS Martin Rigid Fixation - Sterile (K060177): The KLS Martin Rigid Fixation - Sterile is in sterile packaging, osteosynthesis products with the following indications for use:
    K051236: The RESORB-X® SF Sonotrode is only intended for use for insertion of the RESORB-X® SF pins.
    K032442: The KLS Martin Mandibular/Reconstruction System II is intended for use in the stabilization of mandibular fractures and mandibular reconstruction.
    K971297: The KLS Martin Centre-Drive Drill-Free screws are in rigid internal fixation of the oral-maxillo-cranio-facial bones. The bone screws are used to anchor plates which are contoured to fit the bony surface and stabilize the bone fragments. The addition of the self drilling feature is the only difference between the predicate device reference
    K944565: The KLS-Martin Micro Osteosynthesis System is used in oral-maxillo-cranio-facial surgery to stabilize fractured bone segments. The bone segments are attached to the plate with screws to prevent movement of the segments.
    K944561: The KLS-Martin Micro Osteosynthesis System is used in oral-maxillo-cranio-facial surgery to stabilize fractured bone segments. The bone segments are attached to the plate with screws to prevent movement of the segments.
    KLS Martin Drill-Free MMF Screw (K042573): The KLS Martin Drill-Free MMF Screws is intended for use in maxilonandibular fixation of fractures of the maxilla, mandible, or both.
    Drill Free MMF Screw (K083432): The Drill Free MMF Screw is intended for use in maxillomandibular fixation of fractures of the maxilla, mandible, or both.
    KLS Martin L1 MMF System (K173320): The KLS Martin L1 MMF System is intended for temporary stabilization of maxillary fractures. It is designed to maintain proper occlusion during intraoperative bone healing (app. 6-8 weeks). It is indicated for the temporary treatment of maxillomandibular fixation (MMF) in adults or adolescents who have permanent teeth present (ages 12 and older).

    Device Description

    KLS Mini Osteosynthesis System (K943347): The KLS Mini Osteosynthesis System consists of titanium non-locking plates ranging in thickness from 0.6mm - 2.5mm and titanium screws ranging in diameter from 1.5mm - 2.3mm.
    KLS Chin Plate System (K943348): The KLS Chin Plate System consists of titanium plates ranging in thickness of 0.6mm and titanium screws ranging in diameter from 1.5mm - 2.3mm.
    KLS-Martin Micro Osteosynthesis System (1.0mm) (K944561): The KLS-Martin Micro Osteosynthesis System is designed to aid in the alignment and stabilization of the skeletal system after a facial fracture or surgery. The bone plates, bone plates, bone screws and accessories of various shapes and sizes for use in oral-maxillo-cranio-facial surgery. The bone plates are manufactured from CP Titanium and range in thickness from 0.3mm - 0.6mm. The bone screws are manufactured from Titanium Alloy and range in diameter from 1.0mm - 1.2mm.
    KLS-Martin Micro Osteosynthesis System (1.5mm) (K944565): The KLS-Martin Micro Osteosynthesis System is designed to aid in the alignment and stabilization of the skeletal system after a facial fracture or surgery. The bone plates and screws of various shapes and sizes for use in oralmaxillo-cranio-facial surgery. The bone plates are manufactured from CP Titanium and range in thickness from 0.3mm - 0.6mm. The bone screws are manufactured from Titanium Alloy and range in diameter from 1.5mm - 1.8mm.
    KLS Martin Centre-Drive Drill-Free Screw (K971297): The KLS Martin Centre-Drive Drill-Free Screws are designed to eliminate the need for pre-drilled pilot holes. They are self-tapping with one step insertion. They are intended for use in rigid internal fixation of the oral-maxillo-cranio-facial bones. The bone screws are used to anchor plates where are contoured to fit the bone fragments. The bone fragments. The bone screws are manufactured from Titanium Alloy and range in diameter from 1.0mm - 2.0mm.
    KLS-Martin Temporary Condylar Implant (K990667): The KLS-Martin Temporary Condylar Implant is a solid condylar head which attaches with fastening screws to a KLS-Martin Fracture/ Reconstruction Plate. The implant is available for left and right placement. The KLS-Martin Temporary Condy intended for temporary reconstruction of the mandibular condyle in patients who have undergone resective procedures to benign tumors requiring the removal of the mandibular condyle. This device is not for permanent implantation, for patients with TMJ or traumatic injuries, or for treatment of temporomandibular joint disease (TMD).
    KLS-Martin Mandibular/Reconstruction System II (K032442): The KLS-Martin Mandibular/Reconstruction System II includes several different designs of titanium plates and screws intended for use in the stabilization and fixation of mandibular fractures and reconstruction. The plates are manufactured from either CP Titanium or Titanium Alloy and range in thickness from 1.0mm - 3.0mm. The screws are manufactured from either CP Titanium Alloy and range in diameter from 2.0mm - 3.2mm.
    KLS-Martin Ortho Anchorage System (K033483): The KLS-Martin Ortho Anchorage System consists of a titanium screw designed to aid in dental movement by providing a rigid skeletal fixation point. The screw is intended to be surgically placed in the mouth for orthodontic procedures. The screws are manufactured from either CP Titanium or Titanium Alloy.
    KLS-Martin Ortho Anchorage System (Plates) (K040891): The KLS-Martin Ortho Anchorage System (Plates) consists of titanium non-locking plates to aid in dental movement by providing a rigid skeletal fixation point. The plates are manufactured from either CP Titanium Alloy and are fixated with titanium screws and are utilized as an anchor for orthodontic procedures in the palatal, maxilla or mandible region.
    KLS-Martin Drill-Free MMF Screw (K042573): The KLS-Martin Drill-Free MMF Screw provides temporary occlusal and fracture stabilization. These screws may be applied prior to or after exposure of the fracture. The KLS-Martin Drill-Free MMF Screw is in maxillomandibular fixation to provide stabilization of fractures of the maxilla, or both. The screws are manufactured from either CP Titanium Alloy and are provided in 2.0mm diameter with lengths ranging from 8mm - 12mm.
    KLS Martin Rigid Fixation - Sterile (K060177): The KLS Martin Rigid Fixation - Sterile includes titanium plates of various shapes and thickness, titanium screws of various length and diameter, stainless steel twist drills of various length and stainless steel sonotrode tips that are provided in sterile packaging. The KLS Martin Rigid Fixation - Sterile is intended to provide KLS Martin's previously cleared osteosynthesis products in sterile packaging.
    Drill Free MMF Screw (K083432): The Drill Free MMF Screw provides temporary occlusal and fracture stabilization. These screws may be applied prior to or after exposure of the fracture. The Drill Free MMF Screw is in maxillomandibular fixation to provide stabilization of fractures of the maxilla, mandible, or both. The screws are manufactured from Stainless Steel and are provided in 2.0mm diameter with lengths ranging from 8mm - 12mm.
    KLS Martin L1 MMF System (K173320): The KLS Martin L1 MMF System is a bone-borne maxillomandibular fixation (MMF) system consisting of metalic archbars with sliding locking plates that attach to the dental arches with screws. The system is intended to provide temporary stabilization of mandibular and maxillary fractures as well as maintain properative bone fixation and postoperative bone healing (app. 6-8 weeks). The patient is brought into occlusion by wiring around the archbar wire hooks. The L1 MMF system plates are manufactured from CP Titanium (ASTM F67), are available in either a 7-hole siding plate configuration with two different lengths, and are 0.5mm in plate thickness. The L1 MMF system sliding locking plates are fixated with either 2.0 x 6 mm selfdrilling locking screws manufactured from Ti-6Al-4V (ASTM F136). Implants are available both sterile. The system also includes the necessary instruments to facilitate placement of the implants.

    AI/ML Overview

    The document describes the KLS Martin Oral-Max Implants - MR Conditional, a bundled submission of various osteosynthesis systems and screws intended for use in craniomaxillofacial surgery. The purpose of this submission is to support the conditional safety and labeling modification of these devices in the magnetic resonance (MR) environment.

    Here's an analysis of the acceptance criteria and the study that proves the device meets them:

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

    The acceptance criteria are implied by the non-clinical tests conducted to support MR Conditional safety, aligning with relevant ASTM standards and FDA guidance. The reported device performance is that the devices can be safely scanned under specified conditions.

    Acceptance Criteria (from ASTM/FDA Guidance)Reported Device Performance (Summary from Submission)
    Magnetically induced displacement force within acceptable limits (ASTM F2052-21)Not explicitly quantified but implied as acceptable for MR Conditional labeling.
    Magnetically induced torque within acceptable limits (ASTM F2213-17)Not explicitly quantified but implied as acceptable for MR Conditional labeling.
    Image artifacts within acceptable limits (ASTM F2119-07, R2013)Not explicitly quantified but implied as acceptable for MR Conditional labeling.
    RF-induced heating (ASTM F2182-19e2) resulting in a temperature rise below 6 ℃Achieved under specified scanning conditions: 1.5 T/64 MHz and 3 T/128 MHz at a whole-body averaged specific absorption rate (wbSAR) of 2 W/kg or head SAR of 3.2 W/kg for an hour-long scanning session.

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

    The testing involved computational modeling and simulation (CM&S). The "test set" in this context refers to the simulated scenarios and device configurations.

    • Sample Size for Test Set: "the entire portfolio of KLS Martin maxillofacial implants" was simulated. This implies that all devices grouped under "KLS Martin Oral-Max Implants - MR Conditional" were included in the simulations. The document also mentions "various in-vivo device positions and landmarks," "worst-case single and multiple devices," and simulations in "10 cm increments." This suggests a comprehensive set of simulated scenarios rather than a traditional physical sample size.
    • Data Provenance: Not explicitly stated as "country of origin" or "retrospective/prospective" in the same way clinical data is. The data is generated through computational modeling and simulation using MED Institute's FDA-qualified Medical Device Development Tool (MDDT) and the Duke virtual human anatomy. This is a form of prospective simulation data.

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

    Not applicable in the traditional sense for this type of non-clinical, simulation-based study. The "ground truth" for the RF-induced heating simulations is derived from the established physics and engineering principles embedded in the FDA-qualified MDDT and the Duke virtual human anatomy model. The expertise lies in the development and validation of these computational tools and the interpretation of the simulation results by experts in MR safety and medical device engineering at MED Institute and the submitting company. The document does not specify the number or qualifications of individual experts validating the computational model, but implies that the MDDT itself is "FDA-qualified," indicating a level of expert review and agreement on its methodology.

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

    Not applicable. Adjudication methods like "2+1" or "3+1" are typically used for consensus building among human expert readers for clinical studies, especially when establishing ground truth from image interpretation. This study is based on physical property testing and computational simulations, not human interpretation of clinical data.

    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 a study involving human readers or AI-assisted diagnostic performance. It focuses on the physical safety of implants in an MR environment.

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

    The RF-induced heating assessment involved "Computational modeling and simulation (CM&S) ... using MED Institute's FDA-qualified Medical Device Development Tool (MDDT) and in a clinically relevant position within the Duke virtual human anatomy." This is a standalone algorithm/model-based assessment without a human-in-the-loop for the performance evaluation itself. Human experts design the simulations, configure the models, and interpret the results, but the "performance" (temperature rise, SAR calculations) is computed by the algorithm.

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

    For the non-clinical tests:

    • Magnetically induced displacement force, torque, and image artifacts: The "ground truth" is based on the physical properties of the materials and device designs, measured or calculated according to established ASTM standards (F2052-21, F2213-17, F2119-07).
    • RF-induced heating: The "ground truth" for the simulations is derived from the established electromagnetic physics and thermal dynamics principles implemented in the FDA-qualified Medical Device Development Tool (MDDT) and applied to the Duke virtual human anatomy model. The MDDT's qualification process by the FDA implicitly establishes the reliability of its results as a form of "ground truth" for simulation-based assessments.

    8. The sample size for the training set

    Not applicable. This is a non-clinical study for MR safety assessment, not a machine learning model requiring a training set in the typical sense. The "training" for the MDDT is its initial validation and qualification against known physical phenomena and experimental data, which is a separate process from this submission.

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

    Not applicable, as there is no training set for a machine learning model in this context. The "ground truth" for qualifying the simulation tool (MDDT) would have been established through extensive validation against experimental measurements and recognized physical theories.

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    K Number
    K163315
    Manufacturer
    Date Cleared
    2017-05-05

    (163 days)

    Product Code
    Regulation Number
    882.5330
    Reference & Predicate Devices
    Why did this record match?
    Reference Devices :

    K943347, K944561, K944565, K971297, K060177

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

    Internal Distraction - Sterile includes devices intended as bone stabilizers and lengthening (and or transport) devices for correction of congenital deficiencies or post traumatic defects of the cranial bones that require gradual distraction.

    Device Description

    Internal Distraction - Sterile consists of sterile internal distraction devices intended for the correction of cranial bones that are comprised of several different designs and components intended for bone stabilization and elongation through distraction osteogenesis. It is composed of multiple sizes and shapes of distractor footplates and either fixed or detachable activator arms. The devices are positioned internally with a connected activation arm extending through the soft tissue for external activation. Some devices, due to their anatomical positioning, are directly activated using a patient activation driver, eliminating the need for attaching an activation arm to the device. The distractor footplates are fixated to the bone on either side of the osteotomy using previously cleared bone screws (K943347, K944561, K944565, K971297, K060177). Distraction is achieved by rotating the distractor threaded drive screws with the patient driver, often with an activation arm, which causes a separation of the distractor footplates and induces the body to grow bone and expand soft tissue as a response. Various lengths of distractor drive screws are available to achieve the desired distraction length. Upon completion of distraction and consolidation of the bone, the screws are removed from the footplates and the distractor is explanted.

    AI/ML Overview

    This document is a 510(k) premarket notification for the "Internal Distraction - Sterile" device. The acceptance criteria and supporting studies are based on demonstrating substantial equivalence to a predicate device, the "Zurich Distraction System (K010139)".

    Here's a breakdown of the requested information:

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

    Acceptance Criteria CategoryAcceptance CriteriaReported Device Performance
    Intended UseThe device is intended as a bone stabilizer and lengthening/transport device for correction of congenital deficiencies or post-traumatic cranial bone defects requiring gradual distraction.The "Internal Distraction - Sterile" device has the same intended use as the predicate device, specifically for cranial bones.
    Materials/BiocompatibilityMaterials (Titanium Alloy (Ti-6Al-4V) and CP Titanium) should meet biocompatibility requirements as per FDA Blue Book Memo #G95-1 (ISO 10993 Part 1).The device uses the same materials (Titanium Alloy (Ti-6Al-4V) and CP Titanium) as the previously cleared predicate device, with identical chemical composition, manufacturing processes, and body contact duration. Therefore, no new biocompatibility testing was needed or performed.
    Sterilization & PyrogenicityDevice must be in sterile packaging and meet pyrogenicity limits.Bacterial Endotoxins testing was conducted (ANSI/AAMI ST72:2011, USP , EP 2.6.14). Results demonstrate conformity to required endotoxin units per device and meet pyrogen limit specifications. The device will be provided sterile via gamma irradiation.
    Mechanical PerformanceMechanical properties (axial resistance, torsional loading, material properties, manufacturing tolerances) must be sufficient to withstand anatomical loads and allow for effective and safe bone movement.Axial load testing, bending torsion testing, axial-torsion testing, and transverse shear testing were performed. All devices passed design requirements for material properties, manufacturing tolerances, axial resistance, and torsional loading, demonstrating sufficient capability to withstand anatomical loads and allow effective/safe boney movement.
    Substantial EquivalenceThe device must be substantially equivalent to the predicate device in intended use, design, function, manufacturing process, and materials, such that any differences do not raise new questions of safety or effectiveness.The device is similar to the predicate in intended use, design, function, manufacturing process, and materials. Differences (sterile packaging, cranial-specific indication, ratcheting mechanism, detachable activators) were deemed not to raise new questions of safety or effectiveness.

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

    The document primarily relies on non-clinical performance data (bench testing) and comparison to the predicate device.

    • Biocompatibility: No new testing was performed; it relied on the predicate device's clearance.
    • Pyrogenicity: The sample size for Bacterial Endotoxins testing is not specified.
    • Mechanical Performance: The sample size for axial load, bending torsion, axial-torsion, and transverse shear testing is not specified. This was bench testing, not clinical data, so provenance like "country of origin" or "retrospective/prospective" is not applicable in the typical sense for patient data.

    3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g. radiologist with 10 years of experience)

    Not applicable. The study is a 510(k) submission based on non-clinical bench testing and demonstration of substantial equivalence to a predicate device. There was no test set requiring expert ground truth for clinical cases.

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

    Not applicable. No clinical test set or adjudication for diagnostic ground truth was performed or required.

    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 medical implant (internal distraction system), not an AI-assisted diagnostic or therapeutic tool. No MRMC study was conducted.

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

    Not applicable. This is a medical device, not an algorithm, so the concept of standalone performance does not apply.

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

    Not applicable in the context of clinical ground truth for diagnostic accuracy. The "ground truth" for this submission is based on:

    • Predicate Device Equivalence: The safety and effectiveness profile of the legally marketed predicate device (Zurich Distraction System, K010139).
    • Engineering Standards: Compliance with recognized standards for biocompatibility (ISO 10993-1), pyrogenicity (ANSI/AAMI ST72:2011, USP , EP 2.6.14), and mechanical performance through bench testing against design requirements.

    8. The sample size for the training set

    Not applicable. This is a medical device clearance, not an AI model. There is no concept of a "training set" for the device itself.

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

    Not applicable. See point 8.

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    K Number
    K161470
    Manufacturer
    Date Cleared
    2016-12-01

    (188 days)

    Product Code
    Regulation Number
    872.4760
    Why did this record match?
    Reference Devices :

    K943347, K944561, K944565, K971297, K060177

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

    Internal Distraction - Sterile includes devices intended as bone stabilizers and lengthening (and or transport) devices for correction of congenital deficiencies or post traumatic defects of the mandible (including ramus, body, alveolar ridge, palate, symphysis) and mid-face bones that require gradual distraction.

    Device Description

    Internal Distraction - Sterile consists of sterile internal distraction devices intended for the correction of the mandible and mid-face bones that are comprised of several different designs and components intended for bone stabilization and elongation through distraction osteogenesis. It is composed of multiple sizes and shapes of distractor footplates and either fixed or detachable activator arms. The devices are positioned internally with a connected activation arm extending through the soft tissue for external activation. Some devices, due to their anatomical positioning, are directly activated using a patient activation driver, eliminating the need for attaching an activation arm to the device. The distractor footplates are fixated to the bone on either side of the osteotomy using previously cleared bone screws (K943347, K944561, K944565, K971297, K060177). Distraction is achieved by rotating the distractor threaded drive screws with the patient driver, often with an activation arm, which causes a separation of the distractor footplates and induces the body to grow bone and expand soft tissue as a response. Various lengths of distractor drive screws are available to achieve the desired distraction length. Upon completion of distraction and consolidation of the bone, the screws are removed from the footplates and the distractor is explanted.

    AI/ML Overview

    This document describes a 510(k) premarket notification for the "Internal Distraction - Sterile" device. The submission focuses on demonstrating substantial equivalence to previously cleared predicate devices, primarily by indicating that the new device is a sterile version of existing non-sterile devices.

    Based on the provided document, here's a breakdown of the requested information:

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

    The document does not explicitly state "acceptance criteria" in a quantitative, measurable sense for a clinical study. Instead, it describes general design requirements and performance evaluations for mechanical properties and biocompatibility. The "reported device performance" indicates that these requirements were met.

    Acceptance Criteria CategorySpecific Test/EvaluationReported Device Performance
    Mechanical PropertiesAxial Load TestingPassed design requirements for material properties, manufacturing tolerances, axial resistance, and torsional loading.
    Bending Torsion TestingPassed design requirements for material properties, manufacturing tolerances, axial resistance, and torsional loading.
    Axial-Torsion TestingPassed design requirements for material properties, manufacturing tolerances, axial resistance, and torsional loading.
    Transverse Shear TestingPassed design requirements for material properties, manufacturing tolerances, axial resistance, and torsional loading.
    Clinical RelevanceDevices are sufficiently capable of withstanding the anatomical loads placed upon them and allow for effective and safe boney movement during their intended use.
    BiocompatibilityGeneral BiocompatibilityNot needed directly for this submission as materials (Titanium Alloy (Ti-6Al-4V) and CP Titanium) were previously cleared and are identical to predicate devices.
    Endotoxin TestingConforms to required endotoxin units per device for medical devices and meets pyrogen limit specifications.

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

    • Sample size for the test set: Not applicable (N/A). This submission did not involve a clinical study with a "test set" of patients. The performance data presented is from non-clinical bench testing and biocompatibility assessments of the device materials.
    • Data provenance: N/A. The data provenance described is related to bench testing, not patient data.

    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)

    • Number of experts: N/A. No clinical test set with ground truth established by experts was used.

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

    • Adjudication method: N/A. No clinical test set to adjudicate was utilized.

    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

    • MRMC study done: No. This is a medical device (bone plate/distractor) submission, not an AI/software as a medical device (SaMD) submission. An MRMC study would not be relevant in this context.
    • Effect size: N/A.

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

    • Standalone done: No. This submission is for a physical medical device.

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

    • Type of ground truth: N/A. For the mechanical and biocompatibility testing, the "ground truth" is defined by established engineering and biological standards and specifications (e.g., design requirements, ANSI/AAMI ST72:2011, USP , EP 2.6.14 for endotoxins). No clinical ground truth (like expert consensus or pathology) was used as there was no clinical study.

    8. The sample size for the training set

    • Sample size for the training set: N/A. There was no "training set" in the context of an algorithm or AI. The design and manufacturing processes for the device are well-established based on existing predicate devices.

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

    • How ground truth was established for the training set: N/A. This concept is not applicable to the type of device and submission described.
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    K Number
    K112557
    Manufacturer
    Date Cleared
    2012-01-05

    (125 days)

    Product Code
    Regulation Number
    882.5320
    Reference & Predicate Devices
    Why did this record match?
    Reference Devices :

    K031659, K983528, K022012, K944561/K944565

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

    The Stryker Universal Neuro 3 System is intended for reconstruction, stabilization and/or rigid fixation of non load-bearing areas subsequent to craniotomy, craniectomy and cranial fractures in adults and adolescents (age 12 and higher).

    Device Description

    The Stryker Universal Neuro 3 System is designed for a wide selection of solutions for cranial fixation. It consists of an implant module (a storage module that contains various versions and shapes of plates and screws) for the respective anatomical and indicated areas. The low profile plates of the Stryker Universal Neuro 3 System provide rigid fixation of cranial flaps with decreased palpability. There is a comprehensive selection of burr hole covers, straight plates, gap plates, 3D-plates, shunt plates, and box plates to provide many fixation options. The malleable plates can be easily contoured by hand without instruments. The pre-shaped skull-base plates provide covers for standard craniectomies, obviating the need to cut or trim mesh.

    AI/ML Overview

    The Stryker Universal Neuro 3 System is intended for reconstruction, stabilization, and/or rigid fixation of non-load-bearing bony areas subsequent to craniotomy, craniectomy, and cranial fractures in adults and adolescents (age 12 and higher).

    Here's an analysis of the provided information regarding acceptance criteria and the study that proves the device meets them:

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

    Acceptance Criteria CategorySpecific Acceptance CriteriaReported Device Performance
    BiocompatibilityCompliance with ISO 10993-1 (biological evaluation), ISO 10993-12 (sample preparation), ISO 10993-18 (chemical characterization).Materials used are rated biocompatible according to ISO 10993-1. Cytotoxicity testing was performed according to ISO 10993-1, 10993-12, and 10993-18.
    Corrosion ResistanceDemonstrated corrosion resistance of all components.The corrosion resistance of all Neuro 3 screws, plates, and meshes were demonstrated.
    Bending StabilityPlates (GWO) and burr hole covers (GXR) must pass the Lerch test according to ASTM F 382-99.The bending stability of the Universal Neuro 3 plates (GWO) and burr hole covers (GXR) were tested by following ASTM F 382-99. The Lerch test was passed by all plates.
    Screw PerformanceScrews (HBW) must meet ASTM F 543 standards for metallic medical bone screws, including torque, depth, and angle measurements.Testing was performed via ASTM F 543. Torque, depth, and angle were measured. The screws passed the automated insertion test.
    Fixation StabilityScrews must demonstrate pull-out safety.Pull-out safety testing was performed utilizing ASTM F 543. All acceptance criteria were met.
    Retention ForceThe retention force between the screw and the screwdriver blade must meet acceptance criteria.Retention force between the screw and the screwdriver blade was tested utilizing ASTM F 543. All acceptance criteria were met.
    Substantial EquivalenceDemonstrated substantial equivalence to identified predicate devices (Stryker Universal Neuro 2 System, Stryker Micro Dynamic Mesh, Synthes Neuro Plate and Screw System, KLS-Martin Micro Osteosynthesis System).The Stryker Universal Neuro 3 System was verified and validated according to Stryker procedures. It was found substantially equivalent to predicate devices, sharing material composition, operating principles, and similar intended use (with the addition of adolescent use). Minor differences in dimensions and shapes were addressed.

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

    The document does not specify exact "sample sizes" in terms of number of devices tested for each performance criterion. Instead, it refers to testing of "all plates," "the screws," and "all Neuro 3 screws, plates and meshes." This implies that a sufficient number of samples were tested to demonstrate compliance with the referenced ASTM and ISO standards for the representative product configurations.

    The data provenance is not explicitly stated as "country of origin" or "retrospective/prospective." However, the tests were conducted according to recognized international (ISO) and US (ASTM) standards, suggesting the testing was performed in a controlled laboratory environment to demonstrate compliance. Given the context of a 510(k) submission, this testing would be prospective and specifically conducted for regulatory approval.

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

    This information is not applicable to this type of device and study. The testing for the Stryker Universal Neuro 3 System involves mechanical and material property evaluations against established engineering standards (ASTM, ISO), not clinical assessment requiring expert interpretation of data or images. Therefore, there is no "ground truth" to be established by experts in a clinical sense.

    4. Adjudication method for the test set

    This information is not applicable for the reasons stated above. Adjudication methods are typically used in studies involving subjective interpretation, such as clinical trials or image-based diagnostic assessments.

    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

    There was no MRMC comparative effectiveness study done. This device is a passive implant (craniofacial plates, burr hole covers, and screws) and does not involve AI or human "readers" in its function or evaluation for regulatory submission.

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

    There was no standalone (algorithm only) performance study done. This device is a physical medical implant and does not involve any algorithms or software for its primary function.

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

    The "ground truth" for this device's performance evaluation is based on established engineering standards and material specifications. For example:

    • Biocompatibility: Conformance to ISO 10993 series.
    • Mechanical Properties: Conformance to ASTM F 382-99 for bending stability (Lerch test) and ASTM F 543 for screw performance (torque, depth, angle, pull-out safety, retention force).
    • Material Composition: Commercially Pure Titanium (Grade II, IV) and Titanium Alloy (Grade V), which are well-defined materials with known properties.

    These standards and specifications serve as the objective "ground truth" against which the device's performance is measured.

    8. The sample size for the training set

    There is no training set for this device. As a passive mechanical implant, it does not involve machine learning or AI models that require training data.

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

    This question is not applicable as there is no training set or ground truth established for a training set for this device.

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    Why did this record match?
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The sterile plate and screw kit configurations for use with the Bioplate® Titanium Fixation System are intended for use on non-load bearing fixation, including cranial bone fixation and brow fixation and the treatment of fractures and reconstructive procedures of the craniomaxillofacial skeleton. Each device is intended for single use only and only in conjunction with other titanium and titanium alloy implant

    Device Description

    The Bioplate® Titanium Fixation System includes a variety of plate configurations for different anatomical applications. Unalloyed commercially pure Grade 1, Grade 2 and Grade 4 titanium and titanium allov plates, and titanium allov screws of varying diameters and lengths are included for fixation of the plates to the craniomaxillofacial bony tissues. These materials have been implanted safely for many years. The predicate device had been approved under K022033.

    The bone plates will be manufactured of unalloyed, commercially pure titanium and titanium 6A1-4V Eli alloy. The materials adhere to the American Society of Testing and Materials (A.S.T.M.) F67 Standards and the American Society of Testing and Materials ( A.S.T.M.) F136 Standard.. The screw will be manufactured of a titanium 6A1-4V Eli alloy that meets the American Society of Testing and Materials (A.S.T.M.) F136 Standard.

    The plate and screw fit configurations are sterilized by gamma radiation sterilization, using VD Max dose setting method. Successful completion of sterilization validation and packaging validation studies provides a high level of assurance that sterility of the device has been achieved and can be maintained.

    AI/ML Overview

    The provided text is a 510(k) summary for a medical device (Modified Sterile Plate & Screw Kit Configurations for use with the Bioplate® Titanium Fixation System) and primarily focuses on establishing substantial equivalence to predicate devices, rather than presenting a performance study with specific acceptance criteria as would typically be seen for a new or novel device.

    Therefore, the document does not contain the information requested regarding:

    1. A table of acceptance criteria and reported device performance.
    2. Sample size used for the test set and data provenance.
    3. Number and qualifications of experts for ground truth establishment.
    4. Adjudication method for the test set.
    5. Multi-reader multi-case (MRMC) comparative effectiveness study or effect size.
    6. Standalone (algorithm-only) performance.
    7. Type of ground truth used (e.g., pathology, outcomes).
    8. Sample size for the training set.
    9. How ground truth for the training set was established.

    Instead, the document states:

    • Comparison of the device's technological characteristics with those of the predicate devices: "All the technical characteristics of the sterile plate and screw kit configurations for use Bioplate® Titanium Fixation System are substantially equivalent to the corresponding characteristics of the predicate devices, and any minor differences raise no new issues of safety and efficacy."
    • The materials used have been implanted safely for many years.
    • Sterilization validation and packaging validation studies were successfully completed, providing a high level of assurance of sterility.

    The "acceptance criteria" in this context are effectively demonstrating that the device is substantially equivalent to legally marketed predicate devices, meaning it has the same intended use, similar technological characteristics, and raises no new questions of safety or effectiveness. The study proving this involves comparing the new device's specifications (materials, sterilization method, intended use) against those of established predicate devices.

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    Reference Devices :

    K910038, K944561, K944545, K943347, K974017, K945139

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

    The sterile plate and screw kit configurations for use with the Bioplate® Titanium Fixation System are intended for use in non-load bearing fixation, including, but not limited to cranial bone fixation and brow fixation, and the treatment of fractures and reconstructive procedures of the craniomaxillofacial skeleton. Each device is intended for single use only and only in conjunction with other titanium and titanium alloy implants.

    Device Description

    The sterile plate and screw kit configurations for use with the Bioplate® Titanium Fixation System includes a variety of plate confiqurations for different anatomical applications. Titanium alloy screws of varying lengths are included for fixation of the plates to the craniomaxillofacial bony tissue. Titanium alloy screws of varying lengths are included for fixation of the plates to the craniomaxillofacial bony tissue.

    The bone plates will be manufactured of unalloved, commercially pure titanium and titanium 6AI-4V ELI allov. The materials adhere to the American Society of Testing and Materials (A.S.T.M) F67 Standards and The American Society for Testing and materials (A.S.T.M.) F136 Standard. The screws will be manufactured of a titanium 6Al-4V ELI alloy that meets The American Society for Testing and materials (A.S.T.M.) F136 Standard.

    The plate and screw kit confiqurations are sterilized using gamma radiation sterilization methods. Successful completion of sterilization validation and packaging validation studies provides a high level of assurance that sterility of the devices has been achieved and can be maintained.

    AI/ML Overview

    This submission K022033 does not contain a study that describes acceptance criteria for device performance in the manner typically seen for software or AI/ML devices. This is a 510(k) premarket notification for a Class II medical device, specifically Sterile Plate & Screw Kit Configurations for use with the Bioplate® Titanium Fixation System.

    For devices like bone plates and screws, the "acceptance criteria" and "study" proving they meet those criteria are typically focused on substantial equivalence to predicate devices and adherence to established material and sterilization standards, rather than performance metrics like sensitivity, specificity, or accuracy.

    Here's a breakdown based on the provided document, addressing the requested points where applicable, and noting where the information is not present or not relevant to this type of device:


    1. Table of Acceptance Criteria and Reported Device Performance

    Acceptance Criteria (Inferred)Reported Device Performance (Inferred)
    Material Composition Standards:
    • Plates: Unalloyed, commercially pure titanium and titanium 6Al-4V ELI alloy, adhering to ASTM F67 and ASTM F136 Standards.
    • Screws: Titanium 6Al-4V ELI alloy, meeting ASTM F136 Standard. |
      | Sterilization Efficacy: |
    • Successfully completed sterilization validation studies proving sterility has been achieved.
    • Successfully completed packaging validation studies proving sterility can be maintained. |
      | Intended Use Equivalence: |
    • Intended for use in non-load bearing fixation, cranial bone fixation, brow fixation, and treatment of fractures and reconstructive procedures of the craniomaxillofacial skeleton.
    • Matches the indications for use of predicate devices: Bioplate, Inc., Wurzburg, Synthes, TiMesh, and KLS-Martin.
    • Intended for single use only. |
      | Technological Characteristics Equivalence: |
    • Same indications for use as predicate devices.
    • All technical characteristics are "substantially equivalent" to predicate devices.
    • "Minor differences raise no new issues of safety and efficacy." |
      | Manufacturing Quality System: |
    • Implicitly meets Good Manufacturing Practice (GMP) requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820), as mandated by FDA for all medical devices. (Mentioned in FDA letter as a general requirement, not a specific claim from the submitter). |
      | Safety and Efficacy (Overall Substantial Equivalence): |
    • Found substantially equivalent by FDA to legally marketed predicate devices, allowing it to proceed to market. The FDA letter states: "FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies." |

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

    This information is not applicable and not provided in the document. This type of device (bone plates and screws) does not typically involve a "test set" in the context of diagnostic or AI/ML performance evaluation studies. The "testing" refers to material and sterilization validation, which are engineering and manufacturing tests, not clinical performance tests with patient data.

    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 and not provided. "Ground truth" for this device is established by adherence to engineering standards (ASTM), manufacturing specifications, and successful physical/chemical testing for material properties and sterility. It doesn't involve expert medical interpretation in the way an AI diagnostic device would.

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

    This information is not applicable and not provided. Adjudication methods are relevant for disputes in expert-labeled datasets, which is not the case here.

    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

    This information is not applicable and not provided. MRMC studies are used for evaluating diagnostic performance, often involving human readers and AI/ML systems. This is not a diagnostic device; it's a surgical implant.

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

    This information is not applicable and not provided. This device does not involve an algorithm.

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

    The "ground truth" for this device is effectively established by:

    • Adherence to Material Standards: ASTM F67 and ASTM F136 specifications define the "truth" for material composition and properties.
    • Validation of Manufacturing Processes: Successful completion of sterilization validation and packaging validation studies (likely per ISO standards or similar) serves as "ground truth" for sterility.
    • Substantial Equivalence: The ultimate "ground truth" for marketing approval is that the device is substantially equivalent to predicate devices already on the market, meaning it performs as intended and introduces no new safety or efficacy concerns.

    8. The sample size for the training set

    This information is not applicable and not provided. There is no "training set" in the context of an AI/ML algorithm for this device.

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

    This information is not applicable and not provided. There is no "training set" or "ground truth" establishment in the AI/ML sense for this device.

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