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510(k) Data Aggregation

    K Number
    K231672
    Device Name
    S1
    Manufacturer
    Date Cleared
    2023-10-13

    (127 days)

    Product Code
    Regulation Number
    872.3930
    Panel
    Dental
    Reference & Predicate Devices
    Predicate For
    N/A
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    S1 is intended for the following uses:
    · Augmentation or reconstructive treatment of the alveolar ridge;

    • · Filling of infrabony periodontal defects
    • · Filling of defects after root resection, apicocectomy, and cystectomy
    • · Filling of extraction sockets to enhance preservation of the alveolar ridge
    • · Elevation of the maxillary sinus floor
      · Filling of periodontal defects in conjuncts intended for Guided Tissue Regeneration (GTR) and Guided Bone Regeneration (GBR); and
      · Filling of peri-implant defects in conjunction with products intended for Guided Bone Regeneration (GBR).
    Device Description

    S1 is intended for filling and augmentation of bony voids and gaps in maxillofacial surgery, implantology, and periodontology according to the intended use of the product.
    S1 is serving as a matrix consisting of interconnected macro- and micropores. The material is porous and has inner surface area.
    S1 is a mixture of Hydroxyapatite (HAp) and hydroxypropyl methylcellulose (HPMC). Hydroxyapatite (HAp) is made from bovine cancellous bone and is mineralized hydroxyapatite.
    The bone particle size is 0.2 ~ 1.0mm for the powder type and 1.0 ~ 2.0 mm for the chip type. S1 is packaged in vials and it is supplied sterile by gamma irradiation and is for single use only.

    AI/ML Overview

    The provided text describes a 510(k) submission for a bone grafting material called "S1," manufactured by MedPark Co., Ltd. The submission aims to demonstrate substantial equivalence to legally marketed predicate devices.

    However, the document does not contain any information about an AI/ML-based medical device or a study proving its performance against specific acceptance criteria for such a device. The device "S1" is a physical bone grafting material, and the tests described are non-clinical (physical, chemical, biocompatibility, sterilization, packaging, and animal studies) typically performed for such medical implants.

    Therefore, I cannot provide the requested information about acceptance criteria, device performance, sample sizes for test/training sets, expert ground truth establishment, adjudication methods, MRMC studies, or standalone algorithm performance, as these concepts are relevant to AI/ML device evaluations, not to the physical bone grafting material described in this document.

    The document focuses on comparing the physical, chemical, and biological properties of S1 to predicate bone grafting materials (Geistlich Bio-Oss® and MBCP Gel™) to demonstrate substantial equivalence for regulatory clearance.

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    K Number
    K203126
    Device Name
    S10 Kirra
    Manufacturer
    Date Cleared
    2020-12-18

    (60 days)

    Product Code
    Regulation Number
    868.5905
    Reference & Predicate Devices
    Predicate For
    N/A
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The S10 Kirra is indicated to provide CPAP and Bi-level therapy for the treatment of obstructive sleep apnea (OSA) in patients (female patients with mild to moderate OSA when using AfH treatment mode) weighing more than 66 lb (30 kg). ASV and ASVAuto modes are also indicated for the treatment of central and/or mixed apneas, or periodic breathing. It is intended for home and hospital use.

    Device Description

    The S10 Kirra is a prescription only Positive Airway Pressure (PAP) ventilator device intended to treat individuals that are diagnosed with sleep apnea conditions. The S10 Kirra uses a micro-processor controlled blower, along with pressure and flow sensors, to achieve pressure, flow and time regulation of air delivery. It includes optional humidification, with air delivery to the patient via heated or non-heated breathing circuits. The device provides both therapeutic (e.g. tidal volume) and technical data (e.g. system fault), and a user interface allowing adjustment of device parameters. The device uses an external AC power supply, and allows the addition of low flow supplemental oxygen.

    AI/ML Overview

    The provided text describes the S10 Kirra, a non-continuous ventilator, and its substantial equivalence to predicate devices, but it does not contain the detailed information necessary to answer all parts of your request about acceptance criteria and a specific study proving the device meets them.

    The document focuses on demonstrating substantial equivalence to previously cleared predicate devices (S9 Greenhills, S9 Wanda, S9 Elouera), rather than detailing a new study with acceptance criteria for a novel device.

    Here's a breakdown of what can be extracted and what is missing:


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

    The document states:
    "Verification confirmed the S10 Kirra met the predetermined acceptance criteria as defined in the relevant compliance standards and as defined in the system verification protocols."

    However, it does not provide a table listing specific acceptance criteria values and the reported performance for each criterion. It broadly mentions areas of testing:

    • Pressure performance
    • Breath events (flow limitations, snore, apneas)
    • Response to periodic breathing
    • Humidification

    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 available in the provided text. The document refers to "verification bench testing" and "comparative predicate testing" but does not specify sample sizes for test sets or data provenance (country of origin, retrospective/prospective).


    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 available. The document focuses on bench testing and comparison to predicate devices, not human expert evaluations for ground truth.


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

    This information is not available. Adjudication methods are typically relevant for studies involving human interpretation or subjective assessments, which are not detailed 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

    The document explicitly states:
    "Clinical performance data is not required as the subject device uses established therapeutic technology and bench testing is sufficient to demonstrate substantial equivalence."

    Therefore, no MRMC comparative effectiveness study was done as the device relies on established technology, and its performance was evaluated through non-clinical bench testing.


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

    The entire non-clinical data section describes performance of the device itself (hardware and software), which can be considered a standalone performance assessment in a bench testing environment. The listed performance areas (pressure, breath events, humidification) are intrinsic to the device's function.


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

    For the non-clinical bench testing, the "ground truth" would be established by engineering specifications, compliance standards, and the performance characteristics of the predicate devices. The tests evaluate if the S10 Kirra performs according to these pre-defined, measurable engineering and physiological parameters. It is not based on expert consensus, pathology, or outcomes data in the way these terms are typically used for clinical evaluations.


    8. The sample size for the training set

    This information is not applicable/available. The S10 Kirra is a medical device (ventilator) with microprocessor control, not an AI/machine learning algorithm that requires a "training set" in the computational sense. The device's "training" involves design, engineering, and calibration to meet its specifications, rather than data-driven model training.


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

    This information is not applicable/available for the same reason as point 8.

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    K Number
    K180502
    Date Cleared
    2018-06-14

    (108 days)

    Product Code
    Regulation Number
    888.3080
    Reference & Predicate Devices
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The Renovis S128 Anterior Lumbar Interbody Fusion (ALIF) System is indicated for intervertebral body fusion procedures in skeletally mature patients with degenerative disc disease (DDD) of the lumbar spine at one or two contiguous levels from L2-S1. Degenerative disc disease is defined as discogenic back pain with degeneration of the disc confirmed by history and radiographic studies. These DDD patients may have up to Grade 1 spondylolisthesis or retrolisthesis at the involved level(s). Renovis S128 ALIF System implants are to be used with autogenous bone graft. Patients should be skeletally mature and have at least six months of non-operative treatment. The Renovis S128 ALIF System is a stand-alone device and is intended to be used with the cover plate and screws provided and requires no additional supplementary fixation. The anterior cover plate must be utilized whenever the device is implanted using the bone screws provided. Should the physician choose to use fewer than the four screws provided, additional supplemental fixation cleared by the FDA for use in the lumbar spine must be used. Supplemental fixation, cleared by the FDA for use in the lumbosacral spine, must be used with implants ≥20°.

    Device Description

    The Renovis S128 Anterior Lumbar Interbody Fusion (ALIF) System is FDA cleared as K131122 and K140106 (sterile implants). This application describes additional cages offerings (new lengths, widths, and lordosis) and a packaging change.

    The S128 ALIF System includes cages of a variety of lengths, widths, heights, and lordosis to suit the individual pathology and anatomical conditions of the patient. The different shape of the footprint allows for different surgical approaches for insertion. S128 ALIF System cages are standalone for devices <20° when implanted with the coverplate and screws. Implants are offered in Ti6A14V and PEEK with Tantalum marker pins. Titanium cages are additively manufactured then machined to the final cage dimensions. PEEK implants are manufactured using traditional methods.

    The Ti6Al4V conforms to the chemical and mechanical requirements of ASTM F136-13 Standard Specification for Wrought Titanium-6Aluminum-4Vanadium ELI (Extra Low Interstitial) Alloy for Surgical Implant Applications
    The PEEK is compliant with ASTM F2026-17 Standard Specification for Polyetheretherketone (PEEK) Polymers for Surgical Implant Applications.The Tantalum is compliant with ASTM F560-17 Standard Specification for Unalloyed Tantalum for Surgical Implant Applications.

    The S128 ALIF System cages that are the subject of this application are gamma sterilized.

    The system also includes instruments to allow for implant determination, trialing and disc preparation. Instruments are manufactured from stainless steel in compliance with ASTM A564/M564-13e1 Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes.

    AI/ML Overview

    This document describes the FDA's decision regarding the Renovis S128 Anterior Lumbar Interbody Fusion (ALIF) System and focuses on its substantial equivalence to previously cleared devices rather than a study about AI performance. Therefore, many of the requested categories are not applicable.

    Here's the information extracted and interpreted based on the provided text:

    1. Table of Acceptance Criteria and Reported Device Performance:

    The document doesn't provide a typical "acceptance criteria" table with specific performance metrics for an AI device. Instead, it focuses on demonstrating substantial equivalence for a medical implant (ALIF System) by meeting established standards and performing tests relevant to its physical properties and function.

    Acceptance Criteria (Demonstrated Equivalence through)Reported Device Performance (Successful Testing)
    Functional Equivalence: Same Indications for UseThe modified cages (new lengths, widths, and lordosis) and packaging change have the same Indications for Use as the K140106 predicate cages.
    Material Equivalence: Manufactured from same materialsThe device is manufactured from the same materials as the predicate devices: Ti6Al4V (conforms to ASTM F136-13), PEEK (compliant with ASTM F2026-17), and Tantalum (compliant with ASTM F560-17). Instruments are stainless steel (compliant with ASTM A564/M564-13e1).
    Process Equivalence: Same manufacturing processesThe device uses the same manufacturing processes as the predicate devices. Titanium cages are additively manufactured then machined. PEEK implants are manufactured using traditional methods.
    Sterilization Equivalence: Same gamma sterilizationThe device is gamma sterilized, the same as the K140106 predicate cages. Complies with AAMI/ANSI/ISO 11137-2:2013 and AAMI/ANSI/ISO 11137-1:2006/(R)2010.
    Mechanical Performance: Dynamic Shear Compression strengthSuccessful Dynamic Shear Compression strength testing was performed per ASTM F2077-14.
    Mechanical Performance: Expulsion testingSuccessful Expulsion testing was performed.
    Risk Management: Assessed for risk under Design ControlsAll changes were assessed for risk and successfully tested under Design Controls.
    Biocompatibility: Biological evaluationComplies with AAMI/ANSI/ISO 10993-1:2009/(R)2013 Biological Evaluation Of Medical Devices.
    Endotoxin Testing: AAMI/ANSI ST72 standardComplies with AAMI/ANSI ST72:2011/(R)2016 Bacterial Endotoxins Test Methods.
    Additional Standards Compliance:Complies with ISO 17665-1 (Sterilization Of Health Care Products Moist Heat) and "Guidance for Industry and FDA Staff - Class II Special Controls Guidance Document: Intervertebral Body Fusion Device, June 2007."

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

    • Sample Size for Test Set: Not applicable. This document describes the substantial equivalence of a physical medical implant (ALIF System) based on engineering tests, not a software device or AI algorithm evaluated on a data test set. The "tests" mentioned (Dynamic Shear Compression, Expulsion) refer to physical testing of the device itself.
    • Data Provenance: Not applicable for an AI or software study. The data is generated from physical material and mechanical testing of the device components.

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

    • Not applicable. Ground truth, in the context of expert consensus, is not relevant for this type of device submission. The "ground truth" for the device's physical properties is established by adherence to ASTM standards and validated engineering test methods performed by qualified laboratories.

    4. Adjudication method for the test set:

    • Not applicable. There is no human expert adjudication of test results in the sense of consensus on medical images or diagnoses for this device. The physical tests are governed by standardized protocols.

    5. If a multi-reader multi-case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance:

    • Not applicable. This submission is for a physical medical implant, not an AI or software device that would involve human readers or AI assistance.

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

    • Not applicable. This is not an algorithm or AI device.

    7. The type of ground truth used:

    • The "ground truth" for this medical device's performance is based on established engineering standards and validated physical test methods. For example, ASTM F2077-14 for intervertebral body fusion devices sets the benchmark for acceptable mechanical performance. Material composition adherence to ASTM F136-13, F2026-17, F560-17, and A564/M564-13e1 provides the "ground truth" for material specifications. Sterilization validation using AAMI/ANSI/ISO standards establishes the "ground truth" for sterility.

    8. The sample size for the training set:

    • Not applicable. This is not an AI or machine learning device that requires a training set.

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

    • Not applicable. No training set is involved for this type of device.
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    K Number
    K152396
    Date Cleared
    2015-09-03

    (10 days)

    Product Code
    Regulation Number
    892.1550
    Reference & Predicate Devices
    Predicate For
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The SonoScape S12 system is a general-purpose ultrasonic intended for use by a qualified physician for evaluation of Fetal, Abdominal, Pediatric, Small Organ (breast, testes, thyroid), Cephalic (neonatal and adult), Transrectal, Trans-vaginal, Peripheral Vascular, Musculo-skeletal (Conventional and Superficial), Cardiac (neonatal and adult), OB/Gyn and Urology.

    Diagnostic ultrasound imaging or fluid flow analysis of the human body as follows:
    Fetal, Abdominal, Pediatric, Small Organ (specify), Neonatal Cephalic, Adult Cephalic, Trans-rectal, Trans-vaginal, Musculo-skeletal (Conventional), Musculo-skeletal (Superficial), Other (Ob/GYN), Other (Urology), Cardiac Adult, Cardiac Pediatric, Peripheral vessel.

    Device Description

    This SonoScape S12 Digital Color Doppler Ultrasound System is an integrated preprogrammed color ultrasound imaging system, capable of producing high detail resolution intended for clinical diagnostic imaging applications.

    The basic principle is that system transmits ultrasonic energy into patient body and implements post processing of received echoes to generate onscreen display of anatomic structures and fluid flow within the body.

    This system is a Track 3 device that employs a wide array of probes that include linear array, convex array and phased array with a frequency range of 1.0 MHz to 15.0 MHz. This system consists of a mobile console with keyboard control panel, power supply module, color LCD monitor and optional probes.

    This system is a mobile, general purpose, software controlled, color diagnostic ultrasound system. Its basic function is to acquire ultrasound data and to display the image in B-Mode (including Tissue Harmonic Image), M-Mode, TDI, Color-Flow Doppler, Pulsed Wave Doppler, Continued Wave Doppler and Power Doppler, or the combination of these modes, Elastography, 3D/4D.

    The subject of this submission is the addition of new probes to the legally marketed SonoScape S12.

    New probes Add 3C-A, 4P-A and 10l2 probes.

    AI/ML Overview

    Here's a breakdown of the acceptance criteria and study information for the SonoScape S12 Digital Color Doppler Ultrasound System, based on the provided FDA 510(k) summary:

    1. Table of Acceptance Criteria and Reported Device Performance

    The FDA 510(k) summary for the SonoScape S12 Digital Color Doppler Ultrasound System does not explicitly list specific numerical acceptance criteria (e.g., specific accuracy percentages, sensitivity/specificity thresholds) or detailed reported device performance in terms of these metrics.

    Instead, the submission focuses on demonstrating substantial equivalence to a previously cleared predicate device (SonoScape S12 K142474) and compliance with relevant industry standards. The performance is assessed by confirming that the device meets its design specifications and conforms to applicable medical device standards, which implies satisfactory performance for its intended use.

    Qualitative Acceptance Criteria (Implied by the 510(k) Summary):

    Acceptance Criteria CategoryReported Device Performance (as stated in the summary)
    Intended UseThe SonoScape S12 system has the same intended uses as the legally marketed SonoScape S12 (K142474).
    Evaluation of Fetal, Abdominal, Pediatric, Small Organ (breast, testes, thyroid), Cephalic (neonatal and adult), Transrectal, Trans-vaginal, Peripheral Vascular, Musculo-skeletal (Conventional and Superficial), Cardiac (neonatal and adult), OB/Gyn and Urology. (Pages 3, 23)
    Technical CharacteristicsThe basic and key technical features of the Subject Device S12 are the same as the legally marketed SonoScape S12 (K142474), including Design, Operation Controls, Display Modes, Operation Modes, Measurement Items, Cine Loop, Power Supply, Operating and Storage Condition and Screen Size. (Page 23)
    Probe PerformancePerformance and clinical application of new probes (3C-A, 4P-A, 1012) are stated to be the same or similar and meet clinical use compared to existing predicate probes (C344, 2P1, L741 respectively). (Page 24)
    Safety and EffectivenessThe device complies with the same regulation and safety standards and has consistent acoustic output levels as the predicate device. "No new risk is raised." (Page 25)
    Compliance with StandardsThe S12 system has been designed and manufactured to meet the following standards: IEC 60601-1, IEC 60601-1-2, IEC 60601-2-37, ISO 10993-5, ISO10993-10, UD2, and UD3. (Page 25)
    Design SpecificationsLaboratory tests (including Phantom tests) were conducted to verify that the S12 system met all design specifications. (Page 25)

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

    The document does not specify a sample size for a test set in the context of clinical performance evaluation. The submission relies on non-clinical tests (laboratory and phantom tests) to verify design specifications and compliance with standards.

    The data provenance is implied to be from internal laboratory testing conducted by SonoScape Medical Corp. in China. The study is not a retrospective or prospective clinical study on patient data in the typical sense for demonstrating diagnostic accuracy or clinical effectiveness.

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

    This information is not provided in the document as there was no clinical testing requiring expert review for ground truth establishment. The document refers to non-clinical laboratory and phantom tests.

    4. Adjudication Method for the Test Set

    This information is not applicable and therefore not provided, as the submission did not involve clinical testing or human reader studies requiring adjudication.

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

    No, a Multi-Reader Multi-Case (MRMC) comparative effectiveness study was not done. The submission explicitly states, "No clinical testing was required." (Page 25). Therefore, there is no effect size reported for human readers improving with or without AI assistance, as AI assistance is not mentioned or evaluated in this context.

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

    This aspect is not applicable as the SonoScape S12 is a diagnostic ultrasound system and does not appear to feature AI algorithms requiring standalone performance evaluation in this 510(k) submission. The document primarily focuses on hardware and core imaging modalities.

    7. The Type of Ground Truth Used

    For the non-clinical tests (laboratory and phantom tests), the "ground truth" would have been established by:

    • Known physical properties of phantoms: For acoustic output, imaging resolution, penetration, etc., phantoms with well-defined characteristics serve as the ground truth.
    • Engineering specifications and standards: Compliance with IEC and ISO standards dictates the expected performance and limits.
    • Comparison to predicate device's established performance: The primary method for demonstrating safety and effectiveness is substantial equivalence to the predicate device (K142474), implying that the predicate's performance serves as an established baseline.

    8. The Sample Size for the Training Set

    This information is not applicable as the submission does not describe an AI or machine learning model that would require a "training set." The device is a traditional ultrasound imaging system.

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

    This information is not applicable for the same reason as point 8.

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    K Number
    K142474
    Date Cleared
    2014-12-19

    (107 days)

    Product Code
    Regulation Number
    892.1550
    Reference & Predicate Devices
    Predicate For
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The SonoScape S12 system is a general-purpose ultrasonic intended for use by a qualified physician for evaluation of Fetal, Abdominal, Pediatric, Small Organ (breast, testes, thyroid), Cephalic(neonatal and adult), Transrectal, Trans-vaginal, Peripheral Vascular, Musculo-skeletal (Conventional and Superficial), Cardiac (neonatal and adult), OB/Gyn and Urology.

    Device Description

    This SonoScape S12 Digital Color Doppler Ultrasound System is an integrated preprogrammed color ultrasound imaging system, capable of producing high detail resolution intended for clinical diagnostic imaging applications. The basic principle is that system transmits ultrasonic energy into patient body and implements post processing of received echoes to generate onscreen display of anatomic structures and fluid flow within the body. This system is a Track 3 device that employs a wide array of probes that include linear array, convex array and phased array with a frequency range of 2.0 MHz to 15.0 MHz. This system consists of a mobile console with keyboard control panel, power supply module, color LCD monitor and optional probes. This system is a mobile, general purpose, software controlled, color diagnostic ultrasound system. Its basic function is to acquire ultrasound data and to display the image in B-Mode (including Tissue Harmonic Image), M-Mode, TDI, Color-Flow Doppler, Pulsed Wave Doppler, Continued Wave Doppler and Power Doppler, or the combination of these modes, Elastography, 3D/4D.

    AI/ML Overview

    This document describes the safety and performance evaluations for the SonoScape S12 Digital Color Doppler Ultrasound System (K142474) and its transducers, in comparison to predicate devices, to establish substantial equivalence.

    1. Table of Acceptance Criteria and Reported Device Performance

    The acceptance criteria for the SonoScape S12 Digital Color Doppler Ultrasound System are primarily demonstrated through conformance to established international and national standards, and by showing substantial equivalence to predicate devices for its intended uses and technological characteristics. The document doesn't present a specific table of numerical performance acceptance criteria and reported performance values in a typical AI/software context. Instead, it relies on a comparison of technical specifications and functionalities with predicate devices.

    However, based on the provided text, we can infer some "acceptance criteria" through comparison to predicate devices and adherence to standards. Since direct numerical performance metrics are not given, the "Reported Device Performance" for equivalence is qualitative, stating "Same" or "Substantially Equivalent (SE) with detailed analysis".

    Here's a summarized view of the comparisons:

    Acceptance Criteria (Inferred from Predicate Device Features & Standards)Reported Device Performance (SonoScape S12 vs. Predicate)Basis for Equivalence/Conclusion
    Design Characteristics:
    Embedded Linux operating systemSame as SonoScape S8 ExpDirect match
    Autocorrelation for color processing, FFT for pulse and CW DopplerSame as SonoScape S8 ExpDirect match
    Support for Linear, Curved, & Phased array probes (2-15 MHz)Same as SonoScape S8 ExpDirect match
    Cine play back capabilitySame as SonoScape S8 ExpDirect match
    Image file archiveSame as SonoScape S8 ExpDirect match
    Software upgrade with USB flash driveSame as SonoScape S8 ExpDirect match
    Digital Scan Converter (800x600)Same as SonoScape S8 ExpDirect match
    Full keyboard panel, TGC 8 sliderSame as SonoScape S8 ExpDirect match
    Operation Controls:
    Depth Range (3-24.8 cm)Same as SonoScape S8 ExpDirect match
    B Dynamic range (20-280 dB)Same as SonoScape S8 ExpDirect match
    Gray Scale Control (7 optional)Same as SonoScape S8 ExpDirect match
    Focal Number (adjustable, max 12)Same as SonoScape S8 ExpDirect match
    B persistence (0-95%)Same as SonoScape S8 ExpDirect match
    PW sweeping speed (2,4,6,8 sec)Same as SonoScape S8 ExpDirect match
    PW Wall filter setting (35-750)Same as SonoScape S8 ExpDirect match
    PW sample volume (0.7-21mm)Same as SonoScape S8 ExpDirect match
    PW angle correction (0-72 degree)Same as SonoScape S8 ExpDirect match
    Spectrum baseline (adjustable)Same as SonoScape S8 ExpDirect match
    Color ROI setting (trackball & set key)Same as SonoScape S8 ExpDirect match
    Color Wall Filter settings (35-750)Same as SonoScape S8 ExpDirect match
    Zoom adjustableSame as SonoScape S8 ExpDirect match
    Freeze control (Toggling freeze key)Same as SonoScape S8 ExpDirect match
    Cine control (play/stop, loop speed, frame by frame)Same as SonoScape S8 ExpDirect match
    Operation Modes & Functions:
    B, M, PW, CW, CFM, DPI, TDI, Tissue Harmonic Image, Color M Mode, PIH, Compound Imaging, 3D/4D Mode, Panoramic Imaging, Trapezoid ImagingSame as SonoScape S8 ExpSubstantially Equivalent (SE Analysis 1 for Elastography)
    Elastography Technique (Strain Elastography)Same as Philips EPIQSubstantially Equivalent (SE Analysis 1)
    Elastography Clinical Applications (adjunct for hard/soft tissue, tumor discovery)Same as Philips EPIQSubstantially Equivalent (SE Analysis 1)
    Elastography Functions (elasticity image generation, distance/area measurement, strain ratio calc)Similar to Philips EPIQSubstantially Equivalent (SE Analysis 1)
    Display Modes:
    Single, Dual, Quad for B,CFM,DPI,TDI, 4D; Dual Live for B+CFM, B+DPI, B+TDI; various split screens for B/M, CFM/M, TDI/M, Steer M, PW, CWSame as SonoScape S8 ExpDirect match
    Measurement Items:
    Various measurements for B, CFM, DPI, TDI (Area Ratio, Angle, Volume, etc.), M (Distance, Time, Slope, HR, etc.), PW/CW (Flow Velocity, Acceleration, Time, Trace, Auto Trace, HR, etc.)Same as SonoScape S8 ExpDirect match
    Operating Conditions:
    Temperature (10-40°C), Relative humidity (30-75%), Air pressure (700-1060 hPa)Same as SonoScape S8 ExpDirect match
    Storage Conditions:
    Temperature (-20-55°C), Relative humidity (20-90%), Air pressure (700-1060 hPa)Same as SonoScape S8 ExpDirect match
    Power Supply:
    Voltage (100-240V AC), Frequency (50/60 Hz), Power Consumption (2.7-1.1A)Wider input voltage range, minor current difference compared to SonoScape S8 Exp (110-240 VAC, 2.7-1.2A)Substantially Equivalent (SE Analysis 2), complies with IEC60601-1
    Screen Size:
    15 inch LCD monitorMinor difference in screen size (vs. 15 inch Widescreen LCD monitor) compared to SonoScape S8 ExpSubstantially Equivalent (SE Analysis 3), complies with IEC60601-1 & IEC60601-1-2, meets clinical needs.
    Compliance with Standards:Meet IEC 60601-1, IEC 60601-1-2, IEC 60601-2-37, ISO 10993-5, ISO10993-10, UD2, and UD3Verified through laboratory tests

    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 states, "Laboratory tests were conducted to verify that the S12 system met all design specifications... Phantom test was conducted to verify that the strain Elastography function was effective and Elastography performance met design specifications, including accuracy and repeatability of strain ratio measurement and etc."

    However, the specific "sample size" for these laboratory and phantom tests (e.g., number of phantom measurements, specific dataset sizes) is not provided. The data provenance (country of origin, retrospective/prospective) is also not specified/mentioned for these tests.

    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)

    The document does not mention the use of experts to establish ground truth for testing. The evaluation appears to be based on technical specifications, direct comparison to predicate devices, and phantom testing, rather than human expert interpretation of images. The "phantom test" mentioned for Elastography implies a physical standard or controlled environment rather than expert-labeled cases.

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

    Since the document does not describe the use of human experts or clinical data for a test set that would require ground truth adjudication, there is no adjudication method mentioned or applicable in the context presented.

    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 is no mention of a multi-reader multi-case (MRMC) comparative effectiveness study being done. The device is a diagnostic ultrasound system, and the submission focuses on establishing substantial equivalence based on technical characteristics and safety standards, not on AI-assisted diagnostic improvement.

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

    The document describes a diagnostic ultrasound system and its transducers, which are hardware devices with embedded software for image acquisition and processing. It is not an AI-based standalone diagnostic algorithm. The phrase "algorithm only without human-in-the-loop performance" is not applicable in this submission. The system produces images for human interpretation.

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

    For the Elastography function (the only feature specifically mentioned with a "test"), the ground truth was established using phantom tests. This suggests a physical phantom with known properties (e.g., stiffness) was used as the reference, rather than expert consensus on clinical cases, pathology, or outcomes data. For other aspects of the ultrasound system, the "ground truth" seems to be adherence to engineering specifications and performance matching that of the predicate devices.

    8. The sample size for the training set

    The document is for a traditional diagnostic ultrasound system and does not mention machine learning or AI algorithms requiring a "training set." Therefore, no training set size is provided or applicable.

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

    As there is no mention of a training set (see point 8), the method for establishing its ground truth is also not applicable.

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    K Number
    K140106
    Date Cleared
    2014-03-27

    (71 days)

    Product Code
    Regulation Number
    888.3080
    Reference & Predicate Devices
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The Renovis S128 Anterior Lumbar Interbody Fusion (ALIF) System is indicated for intervertebral body fusion procedures in skeletally mature patients with degenerative disc disease (DDD) of the lumbar spine at one or two contiguous levels from L2-S1. Degenerative disc disease is defined as discogenic back pain with degeneration of the disc confirmed by history and radiographic studies. These DDD patients may have up to Grade 1 spondylolisthesis or retrolisthesis at the involved level(s). Renovis S128 ALIF System implants are to be used with autogenous bone graft.

    Patients should be skeletally mature and have at least six months of non-operative treatment.

    The Renovis S128 ALIF System is a stand-alone device and is intended to be used with the cover plate and screws provided and requires no additional supplementary fixation. The anterior cover plate must be utilized whenever the device is implanted using the bone screws provided. Should the physician choose to use fewer than the four screws provided, additional supplemental fixation cleared by the FDA for use in the lumbar spine must be used.

    Device Description

    The Renovis S128 Anterior Lumbar Interbody Fusion (ALIF) System is cleared under K131122. The SI28 ALIF implants (cages) are to be used with the bone screws and anterior cover plate assembly and requires no additional supplementary fixation systems. The Renovis S128 ALIF System implants are available in a variety of sizes (widths, height, depths, and bone screw sizes; see below) to suit the individual pathology and anatomical conditions of the patient. The implants are manufactured from PEEK or additively manufactured and machined Titanium. The bone screws and cover plate assembly are both manufactured from Titanium alloy. The PEEK markers are manufactured from Tantalum.

    This Special 510(k) Premarket Notification is submitted for the additional offering of gamma sterilized S128 implants (PEEK cages; titanium cages, screws and cover plates).

    AI/ML Overview

    This document is a 510(k) Special Premarket Notification for the Renovis S128 Anterior Lumbar Interbody Fusion (ALIF) System, focusing on the addition of gamma sterilization for its implants. It primarily addresses the safety and effectiveness of the sterilization method and its impact on the device's materials, rather than a clinical study of the device's performance in patients.

    Therefore, the requested information focusing on clinical performance metrics, sample sizes for test/training sets, expert ground truth, and comparative effectiveness with AI is not directly applicable to this specific regulatory submission. This is because the submission is about a manufacturing change (sterilization method) to an already cleared device (K131122), not a new device or a clinical outcome study.

    However, I can extract the information relevant to the performance data for the sterilization process, which is the core of this submission.


    Acceptance Criteria and Reported Device Performance (for Gamma Sterilization)

    Acceptance Criteria CategoryAcceptance CriteriaReported Device Performance
    Sterility AssuranceSterilization validated to a sterility assurance level (SAL) of 10⁻⁶ by selecting and substantiating a 25 kGy dose using the VDmax 25 method, according to ISO 11137-1.Implants are sterilized by ⁶⁰Gamma irradiation validated to a sterility assurance level (SAL) of 10⁻⁶ by selecting and substantiating a 25 kGy dose by the VDmax 25 method, according to ISO 11137-1.
    Material Compatibility (Titanium)Titanium alloy components are not negatively affected by gamma sterilization and/or aging.Titanium alloy components are not affected by gamma sterilization and/or aging.
    Material Compatibility (PEEK)After an average dose of 200 kGy and accelerated aging (simulating 10+ years), PEEK components should not show any significant difference compared to untreated PEEK.PEEK components were tested to an average dose of 200 kGy and underwent accelerated aging to simulate 10 or more years. After aging, the samples were tested, and the results did not show any significant difference between untreated PEEK and gamma treated and aged PEEK.
    Packaging Sterility MaintenancePackaging validated to maintain sterility for 3 years, complying with ISO 11607-2 (accelerated aging simulation per ASTM F1980-07 and real-time aging) and performance following distribution per ISTA 2A.Packaging has been validated to maintain sterility for 3 years in compliance with ISO 11607-2, demonstrates compliance with accelerated aging simulation per ASTM F1980-07 and real-time aging; and performance following distribution per ISTA 2A.

    Regarding the other requested information:

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

      • This document does not describe a clinical test set with human subjects. The "test set" here refers to material samples (Titanium and PEEK) and packaging subjected to sterilization and aging simulations. The sample sizes for these material tests are not explicitly stated but are part of standard validation protocols for ISO 11137-1 and internal Renovis testing.
      • Data provenance is from internal testing and validation performed by Renovis Surgical Technologies, Inc. and its sterilization/packaging validation partners. No country of origin for clinical data is applicable.
    2. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g. radiologist with 10 years of experience):

      • Not applicable as this is not a clinical study involving human expert interpretation of medical images or outcomes. Ground truth for material testing is based on established materials science and engineering principles and validated sterilization/packaging standards by qualified engineers and scientists.
    3. Adjudication method (e.g. 2+1, 3+1, none) for the test set:

      • Not applicable. Adjudication methods are relevant for subjective assessments (like image interpretation) where there might be disagreement among experts. Material and sterilization testing follows objective, quantifiable methods against pre-defined specifications.
    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:

      • Not applicable. This submission is about a medical device (surgical implant) and a manufacturing process change (sterilization), not an AI-powered diagnostic tool or image analysis software.
    5. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:

      • Not applicable for the same reason as above.
    6. The type of ground truth used (expert consensus, pathology, outcomes data, etc):

      • The "ground truth" for this submission is based on established international and national standards for medical device sterilization (ISO 11137-1, ANSI/AAMI/ISO 11137-2), packaging (ISO11607-2, ASTM F1980-07), and material specifications (ASTM F2026, ASTM F136, ASTM F 560-08). This is objective, measurable data comparing post-sterilization/aging material properties to baseline and specified requirements.
    7. The sample size for the training set:

      • Not applicable. There is no machine learning or AI training set described in this document.
    8. How the ground truth for the training set was established:

      • Not applicable.
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    K Number
    K131122
    Date Cleared
    2013-09-18

    (149 days)

    Product Code
    Regulation Number
    888.3080
    Reference & Predicate Devices
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The Renovis S128 Anterior Lumbar Interbody Fusion (ALIF) System is indicated for intervertebral body fusion procedures in skeletally mature patients with degenerative disc disease (DDD) of the lumbar spine at one or two contiguous levels from L2-S1. Degenerative disc disease is defined as discogenic back pain with degeneration of the disc confirmed by history and radiographic studies. These DDD patients may have up to Grade 1 spondylolisthesis or retrolisthesis at the involved level(s). Renovis S128 ALIF System implants are to be used with autogenous bone graft.

    Patients should be skeletally mature and have at least six months of non-operative treatment.

    The Renovis S128 ALIF System is a stand-alone device and is intended to be used with the cover plate and screws provided and requires no additional supplementary fixation. The anterior cover plate must be utilized whenever the device is implanted using the bone screws provided. Should the physician choose to use fewer than the four screws provided, additional supplemental fixation cleared by the FDA for use in the lumbar spine must be used.

    Device Description

    The Renovis S128 Anterior Lumbar Interbody Fusion (ALIF) System is to be used with the bone screws and anterior cover plate assembly and requires no additional supplementary fixation systems. The screws protrude through the interbody portion of the device and stabilize the vertebral body while preventing expulsion of the implant. The Renovis S128 ALIF System contains both fixed and variable angle screw options. The fixed angle screw option provides a tight fit with the cage. The variable angle screw option provides a slight clearance between the cage and the screw which allows for a small amount of variable screw angulations.

    The Renovis S128 ALIF System cages are intended to be used with autogenous bone graft. The accompanying cover plate is designed to prevent screw back-out and must be used when the screws are implanted. NOTE: The cover plate assembly and screw are part of the implant construct.

    The Renovis S128 ALIF System implants are available in a variety of sizes (widths, height, depths, and bone screw sizes) to suit the individual pathology and anatomical conditions of the patient. The implants are manufactured from PEEK or additively manufactured and machined Titanium. The bone screws and coverplate assembly are both manufactured from Titanium alloy. The PEEK markers are manufactured from Tantalum. The Renovis Si28 ALIF System is used with trials and implant specific manual instruments, and includes other class I manual orthopedic instruments.

    AI/ML Overview

    The Renovis S128 Anterior Lumbar Interbody Fusion (ALIF) System is an intervertebral fusion device. The acceptance criteria for the device were based on various mechanical performance tests as outlined by ASTM standards and specific FDA guidance documents. The study demonstrating the device meets these criteria involved physical performance testing of the device's components and the full implant system.

    1. Table of Acceptance Criteria and Reported Device Performance:

    Acceptance Criteria (Test Standard)Reported Device Performance
    Static Compression per ASTM F2077Successfully undergone
    Dynamic Compression per ASTM F2077Successfully undergone
    Static Shear-Compression per ASTM F2077Successfully undergone
    Dynamic Shear-Compression per ASTM F2077Successfully undergone
    Expulsion Testing w/screws per ASTM Draft Standard F04.25.02.02Successfully undergone
    Expulsion Testing w/o screws per ASTM Draft Standard F04.25.02.02Successfully undergone
    Subsidence testing per ASTM F2267Successfully undergone
    Shear testing of metallic coatings per ASTM F1044Sample coupons of Titanium porous structure successfully undergone testing
    Tensile testing of metallic coatings per ASTM F1147Sample coupons of Titanium porous structure successfully undergone testing
    Abrasion per ASTM F1978Sample coupons of Titanium porous structure successfully undergone testing
    Porosity-and microstructure per ASTM F1854Sample coupons of Titanium porous structure successfully undergone testing
    Compliance with FDA Guidance: "Intervertebral Body Fusion Device"Complies
    Compliance with FDA Guidance: "Spinal System 510(k)s"Complies
    ASTM F 983-86 (Reapproved 2009) Standard Practice for MarkingComplies
    ASTM F 565-04 (Reapproved 2009)e1 Standard Practice for Care/HandlingComplies
    ASTM F2026 Standard Specification for PEEK PolymersComplies
    ASTM F-136 Standard Specification for Wrought Titanium-6Aluminum-4Vanadium ELIComplies
    ASTM F 560-08 Standard Specification for Unalloyed TantalumComplies
    ASTM A564 Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and ShapesComplies
    ASTM F138 - Standard Specification for Wrought 18Chromium-14Nickel-2.5Molybdenum Stainless Steel Bar and WireComplies

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

    The document states that "worst case constructs" of the Renovis S128 ALIF System implants were used for mechanical testing and "sample coupons" of the Titanium porous structure were tested. However, the exact numerical sample sizes for each test are not specified in the provided text. The data provenance is pre-market performance bench testing, indicating it is prospective data obtained specifically for regulatory submission, and not from clinical trials or retrospective patient data. The country of origin for the data generation (e.g., in which lab/country testing was conducted) is not specified, though Renovis Surgical Technologies is located in Redlands, CA, USA.

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

    This information is not applicable as the evaluation of this medical device's performance is based on standardized mechanical testing against pre-defined engineering criteria (ASTM standards and FDA guidance) rather than subjective expert assessment of clinical data or images. "Ground truth" in this context refers to the verifiable performance against these objective mechanical benchmarks.

    4. Adjudication Method for the Test Set:

    This information is not applicable as the device's performance was assessed through objective mechanical testing against established standards, not through a process requiring expert adjudication of subjective outcomes.

    5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study was done, and the Effect Size of how much human readers improve with AI vs without AI assistance:

    This is not applicable as the document describes a pre-market notification for an intervertebral fusion device, which is an implantable medical device, not an AI-powered diagnostic tool. Therefore, no MRMC study involving human readers with or without AI assistance was conducted or would be relevant.

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

    This is not applicable as the device is a physical implant, not an algorithm.

    7. The Type of Ground Truth Used:

    The ground truth used for this device's evaluation is defined by established engineering and material standards and FDA guidance documents. Specifically, successful performance in physical and mechanical tests (e.g., static/dynamic compression, shear, expulsion, subsidence) as per ASTM F2077, ASTM F2267, ASTM F1044, ASTM F1147, ASTM F1978, ASTM F1854, and various material specifications (e.g., PEEK, Titanium, Tantalum). The device's substantial equivalence is based on its ability to meet these objective, measurable criteria, indicating it performs comparably to predicate devices in mechanical integrity and material properties.

    8. The Sample Size for the Training Set:

    This information is not applicable. The context provided is for a traditional medical device (spinal implant) undergoing a 510(k) submission, which relies on demonstrating substantial equivalence through engineering testing and material characterization, not machine learning or AI models that require training sets.

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

    This information is not applicable for the reasons stated in point 8.

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    K Number
    K082629
    Date Cleared
    2009-07-01

    (295 days)

    Product Code
    Regulation Number
    882.1310
    Reference & Predicate Devices
    Predicate For
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The S12X Cortical Stimulator is intended for Intraoperative cortical stimulation mapping to aid in cortical resections in the vicinity of essential cortex. The device is intended for use only by medically trained and qualified personnel, within a hospital or medical environment. The ESAx option is intended for use with the S12X for facilitating the switching of the patient electrodes.

    Device Description

    The S12X Stimulator supplies a bi-phasic, constant current electrical pulse sequence that is suitable for cortical stimulation. Currents can be applied to the surface of the cortex either with a Manual Probe or through a Set of Electrodes (using the ESAx) option. Electrodes, either the Manual Probe or the Set of Electrodes are not considered part of the S12X.

    The S12X is intended to replace and discontinued S12 Stimulator in the product line of Grass Instruments, Inc. (now Grass-Technologies, an Astro-Med, Inc. Product Group), marketed prior to May 28. 1976 and sold as a research device thereafter. The essential functions of the S12 have been retained, but appropriate isolation and insulation features have been added to meet modern requlatory requirements for use with human patients. In order to provide for applications and expansions of function compatible with modern medical data systems, hardware timing circuits have been replaced with an embedded controller whose crystal controlled counters replace the hardware timing functions, and the panel controls have been largely replaced with a touch screen graphical user interface (GUI).

    The S12X device consists of an external medical grade power supply, the S12X Stimulator Unit, and the optional ESAx electrode selector adapter. The S12X front panel consists of hardware switches for controlling the "Stimulate" and "All Stop" functions, and a color LCD touch screen display with instrumentstyle controls for setting up the stimulation parameters, calibrating the stimulation log file contents, and for selecting electrodes for stimulation. User input is via a stylus (for touch panel use) or via a standard mouse. The optional ESAx unit connects to a multi-pin connector on the side panel of the S12X.

    The S12X accumulates a log of stimulation events, their time-of-day, and their parameters. The log file can be easily transferred to a USB flash drive or equivalent for electronically filing or printing of the stimulation log.

    No transient voltage can exceed 34 volts on the patient electrodes (limited by a Zener diode across the patient leads). Further, if after two pulses the internal voltage monitor detects pulse voltages greater than 30 volts, the pulse train will terminate.

    No sustained direct current can pass through the patient leads since the output stimulus is entirely transformer coupled. The unit is powered by an external regulated 12 volt DC medical-grade supply powered by standard mains voltage of 120V or 250V AC, and meets U.S. and European requlatory standards: IEC 60601-1-1, and IEC 60601-1-2.

    ESAx Electrode Switch Array:

    The ESAx is an optional accessory to the S12X which facilitates rapid functional brain mapping during presurgical workups and during surgery. The ESAx is an array of optically coupled relays that can select electrodes from an electrode grid array when more than one electrode pair is in contact with the cerebral cortex, usually in the form of strips or grids. Note that the cortical electrode strips or grids are not part of the device, and they are purchased by the user from other vendors. The ESAx connects the desired electrode pair to the stimulator and simultaneously disconnects the corresponding EEG amplifier leads from the amplifier. The choice of electrodes to be stimulated is controlled from a touch screen display on the S12X,

    The ESAx has no buttons or switches, and consists of multi pin connectors for connecting to the S12X and for connecting EEG electrode iack boxes and EEG amplifier unit(s). Note that the EEG jack boxes and the multi-channel EEG amplifiers which can connect to the ESAx are not part of the S12X device, and therefore are not part of this 510(k) submission.

    AI/ML Overview

    Here's a breakdown of the acceptance criteria and study information for the S12X with ESAx Option device, based on the provided text:

    1. Table of Acceptance Criteria and Reported Device Performance

    ParameterAcceptance Criteria (Predicate Device)Reported Device Performance (S12X)Notes
    Intended UseIntraoperative cortical stimulation mapping to aid in cortical resections in the vicinity of essential cortex.Intraoperative cortical stimulation mapping to aid in cortical resections in the vicinity of essential cortex.The intended use statement is identical to the predicate device.
    Power SourceBattery powered (four 9V alkaline batteries)External medical grade isolating power supply with a +12V DC output.This is a difference, but not presented as a failure of acceptance criteria, rather a design choice. The new power supply meets U.S. and European regulatory standards (IEC 60601-1-1, and IEC 60601-1-2).
    Maximum Available Current10 milliamperes (peak)15 milliamperes (for pulse widths up to and including 1000 microseconds); 10 milliamperes at 2000 microseconds pulse width.Increased for common stimulation practice at shorter pulse widths, while maintaining the 20 microcoulomb charge limit of the predicate device.
    Charge per Pulse Limit20 microcoulombsStays within 20 microcoulombsMaintained equivalence to the predicate device.
    Maximum Available Power Output to Patient80 milliwatts60 milliwattsThe S12X limits the maximum power to the patient to 60 milliwatts, which is less than the predicate, implying increased safety.
    Compliance Voltage20 volts (implied by 10mA max current and an assumed resistance)30 voltsNecessary to support the increased current, ensuring the device can deliver the higher current.
    Regulatory Compliance (Power Supply)Not explicitly stated for OCS-1, but implied suitable for medical use.Meets U.S. and European regulatory standards: IEC 60601-1-1, and IEC 60601-1-2.The S12X explicitly states compliance with relevant safety standards.
    Transient VoltageNot explicitly stated for OCS-1.Cannot exceed 34 volts on patient electrodes (limited by Zener diode); pulse train terminates if internal voltage monitor detects pulse voltages > 30 volts after two pulses.Additional safety features to prevent excessive voltage.
    Sustained Direct CurrentNot explicitly stated for OCS-1.No sustained direct current can pass through patient leads since output is transformer coupled.Safety feature to prevent DC current flow.
    Control InterfaceKnobs and switchesColor LCD touchscreen display with instrument-style controls; hardware switches for "Stimulate" and "All Stop" functions.A difference in UI design, not a performance criterion. Safety-critical controls are still hardware-based.
    Pulse Shape FeatureNot mentionedAlternating Stimulus Polarity available to minimize polarization of stimulus electrodes and provide quicker recovery of EEG amplifiers.An added feature, not a criterion.
    Logging FunctionalityNot mentionedKeeps a running log of stimulus time and parameters, easily transferable to USB.An added feature, not a criterion.
    ESAx Functionality (compared to predicate switch boxes)Switching external signals (e.g., from an electrical stimulation unit to appropriate electrodes).Facilitates rapid functional brain mapping; connects desired electrode pair to stimulator and simultaneously disconnects corresponding EEG amplifier leads."Essentially the same in functionality, effectiveness, and performance" as predicate switch units. Adds ~100 ohms resistance to the stimulation circuit, which is characterized.

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

    The document does not specify a particular sample size for a "test set" in the context of clinical or human subject testing. The "test data" mentioned refers to in-house engineering and functional testing of the S12X device itself.

    • Sample Size: Not applicable for a human-subjects test set. The testing was on the device's functional performance.
    • Data Provenance: The data comes from "in-house testing" performed by Chatten Associates, Inc. This indicates it's internal engineering and verification testing. It does not refer to clinical trial data or data collected from human subjects.

    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 this device's performance is based on its technical specifications and functional output as designed, and comparison to the technical specifications of predicate devices. There is no mention of experts establishing a ground truth for a clinical "test set" or a labeled dataset for an AI algorithm.

    4. Adjudication Method for the Test Set

    Not applicable. There's no mention of an adjudication method as no expert-labeled test set was used in the described testing.

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

    No. The document describes technical verification and validation against the device's design and a comparison of its specifications to predicate devices. It does not mention any MRMC study involving human readers or AI assistance.

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

    The device itself is a piece of hardware (a cortical stimulator and an electrode switch array), not an AI algorithm. Therefore, the concept of a "standalone" algorithm performance study is not applicable here. The device's performance was assessed based on its functional output against its design specifications.

    7. The Type of Ground Truth Used

    The ground truth used for this submission is based on:

    • Design and Performance Functional Requirements: The device's ability to meet its own internal hardware and software design specifications.
    • Technical Specifications of Predicate Devices: Comparison of parameters like maximum current, charge per pulse, and maximum power output to the Ojemann Cortical Stimulator (K924226).
    • Regulatory Standards: Compliance with standards like IEC 60601-1-1 and IEC 60601-1-2.

    8. The Sample Size for the Training Set

    Not applicable. This device is hardware and does not employ AI or machine learning algorithms that would require a "training set."

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

    Not applicable, as there is no training set mentioned for this hardware device.

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