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510(k) Data Aggregation

    K Number
    K203432
    Date Cleared
    2021-07-07

    (226 days)

    Product Code
    Regulation Number
    882.5950
    Reference & Predicate Devices
    Predicate For
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    Axium™ Detachable Coils are intended for the endovascular embolization of intracranial aneurysms. Axium™ Detachable Coils are also intended for the embolization of other neuro vascular abnormalities such as arteriovenous malformations and arteriovenous fistulae.

    The Axium™ Prime Detachable Coils are intended for the endovascular embolization of intracranial anewrysms. The Axium™ Prime Detachable Coils are also intended for the embolization of other neuro vascular abnormalities such as arteriovenous malformations and arteriovenous fistulae.

    The Axium™ Prime Detachable Coil is intended for the endovascular embolization of intracranial aneurysms and other neurovascular abnormalities, such as arteriovenous malformations and arteriovenous fistulae. The Axium™ Prime Detachable Coils are also intended for arterial and venous embolizations in the peripheral vasculature.

    Device Description

    The Axium™ Detachable Coil and Axium™ Prime Detachable Coil (referred to collectively as "Axium™ device family"), consists of a platinum embolization coil attached to a composite implant delivery pusher with a radiopaque positioning marker and a hand-held Instant Detacher (I.D.) which when activated detaches the coil from the delivery pusher tip. The Instant Detacher (I.D.) is sold separately.

    AI/ML Overview

    This document does not describe an AI/ML device and therefore does not contain the information requested in your prompt regarding acceptance criteria and studies for AI/ML device performance.

    The document is a 510(k) premarket notification summary for the Axium™ Detachable Coil and Axium™ Prime Detachable Coil, which are neurovascular embolization devices. It describes a proposed change to the labeling concerning the accessory sheath (from femoral to arterial, allowing radial access) and the removal of certain peripheral vasculature indications for specific models.

    The performance data presented are for bench testing of the physical device (e.g., ease of delivery, detachment reliability, retractability, retrieval) and explicitly states:

    • "The determination of substantial equivalence is based upon non-clinical bench testing as there is no change to the intended use, fundamental scientific technology, or materials of construction." (Regarding animal and clinical data).

    Therefore, I cannot provide details on:

    1. A table of acceptance criteria and reported device performance for an AI/ML device.
    2. Sample sizes for test sets or data provenance for AI/ML model evaluation.
    3. Number and qualifications of experts for AI/ML ground truth.
    4. Adjudication methods for AI/ML test sets.
    5. MRMC studies or human reader improvement with AI assistance.
    6. Standalone performance of an algorithm.
    7. Type of ground truth used for AI/ML.
    8. Sample size for AI/ML training set.
    9. How ground truth for an AI/ML training set was established.
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    K Number
    K202850
    Date Cleared
    2021-02-09

    (134 days)

    Product Code
    Regulation Number
    870.3300
    Reference & Predicate Devices
    Predicate For
    N/A
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The Concerto Versa™ Detachable Coil is indicated for arterial and venous embolization in the peripheral vasculature.

    Device Description

    The Concerto Versa™ Detachable Coil is an embolization coil that consists of a platinum embolization coil attached to a composite delivery pusher, and a hand-held Instant Detacher (I.D.) which, when activated, detaches the coil from the delivery pusher tip. The Instant Detacher is an accessory sold separately and was most recently cleared in K162704. The Concerto Versa™ Detachable Coil is supplied sterile and is intended for single-use only.

    AI/ML Overview

    The provided document is a 510(k) summary for the Concerto Versa™ Detachable Coil. This document pertains to a medical device (an embolization coil) and does not describe a study involving an AI/Machine Learning device or a diagnostic device. Therefore, many of the requested categories, such as "Adjudication method," "MRMC comparative effectiveness study," "Standalone performance," "Training set," and "Ground truth for training set," are not applicable to this submission.

    The document primarily focuses on demonstrating the substantial equivalence of the new device (Concerto Versa™ Detachable Coil) to a legally marketed predicate device (Concerto Detachable Coil System) through a series of bench tests and leveraging existing data from the predicate. The "acceptance criteria" are implicitly the passing results of these non-clinical tests.

    Here's the information that can be extracted and how it relates to the request:

    1. Table of Acceptance Criteria and Reported Device Performance:

    The acceptance criteria are generally "Pass" for each test, indicating that the device met the specified performance requirements. The document does not provide specific numerical criteria for each test beyond stating they "meet specification."

    Test NameAcceptance Criteria (Implicit)Reported Device Performance
    Friction in CatheterMeet specificationPass
    Coil Force Transfer RatioMeet specificationPass
    Pusher LengthMeet specificationPass
    Coil Visual InspectionNo damage, kinks, 1st loop fullPass
    Friction in SheathMeet specificationPass
    FatigueRe-sheathed/deployed 6+ times without breaking/detachingPass
    PP TensileMeet specificationPass
    Kink resistanceTrack through 0.027" catheter without kinkingPass
    DetachmentMust detach when attemptedPass
    Tip BucklingMeet min/max specificationsPass
    Tinius OlsenMeet specificationPass
    Loop DeformationMeet specificationPass
    Anchor Flow RateMeet specificationPass
    1st Loop OD MeasurementMeet specification based on sizePass
    Flow OcclusionMeet specification in vessel modelPass
    Primary Wind OD MeasurementMeet specificationPass
    Coil LengthMeet specification based on modelPass
    Pusher ElongationMeet specificationPass
    Pusher Skive TensileMeet specificationPass
    Primary wind weld tensile strengthMeet specificationPass
    Couple Tube TensileMeet specificationPass
    Shield Coil TensileMeet specificationPass
    Detachment (time)Less than 5sPass
    Detachment (back-up method)Manually detachable by back-up methodPass
    Fiber Amount CountingMeet specification based on modelPass
    Fiber Pull Out ForceMeet specificationPass
    Distribution SimulationMaintain integrity with packaging through shippingPass

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

    • Sample Size: The document does not explicitly state the specific number of coils or test replicates used for each bench test conducted on the Concerto Versa™ Detachable Coil. It states that "A subset of design verification testing was conducted."
    • Data Provenance: The tests were "non-clinical bench testing." The document mentions "clinically relevant tortuosity model of the splenic and gastroduodenal arteries" which implies in-vitro testing. It also states that "GLP acute animal data was also leveraged from the predicate device," indicating some previous animal study data was used, but not for the subject device's new testing.
    • Retrospective or Prospective: The testing performed for this submission would be considered prospective for the subject device, as it was specifically done for this 510(k) submission.

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

    Not applicable. This is a medical device submission based on physical and mechanical performance testing, not a diagnostic device requiring expert interpretation for ground truth.

    4. Adjudication Method for the Test Set:

    Not applicable. No expert adjudication process is described as it's not a diagnostic study.

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

    No, this was not an MRMC comparative effectiveness study. It is a 510(k) submission for a non-diagnostic medical device.

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

    Not applicable. This is a medical device, not an algorithm. The performance evaluation is based on mechanical and physical characteristics.

    7. The Type of Ground Truth Used:

    The "ground truth" for the non-clinical performance tests is the defined engineering and material specifications for the device. For example, a coil's length must meet a certain specification, or its detachment time must be below a certain threshold. There's no "ground truth" derived from patient outcomes or expert consensus in the typical sense for a diagnostic device. Biocompatibility was evaluated against ISO 10993 standards.

    8. The Sample Size for the Training Set:

    Not applicable. This is not an AI/ML device that requires a training set.

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

    Not applicable.

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    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use
    1. The Solitaire™ Revascularization Device is indicated for use to restore blood flow in the neurovasculature by removing thrombus for the treatment of acute ischemic stroke to reduce disability in patients with a persistent, proximal anterior circulation, large vessel occlusion, and smaller core infarcts who have first received intravenous tissue plasminogen activator (IV t-PA). Endovascular therapy with the device should be started within 6 hours of symptom onset.
    2. The Solitaire™ Revascularization Device is indicated to restore blood flow by removing thrombus from a large intracranial vessel in patients experiencing ischemic stroke within 8 hours of symptom onset. Patients who are ineligible for IV t-PA or who fail IV t-PA therapy are candidates for treatment.
    3. The Solitaire™ Revascularization Device is indicated for use to restore blood flow in the neurovasculature by removing thrombus for the treatment of acute ische to reduce disability in patients with a persistent, proximal anterior circulation, large vessel occlusion of the internal carotid artery (ICA) or middle cerebral artery (MCA)-M1 segments with smaller core infarcts (< 70 cc by CTA or MRA, < 25 cc by MR-DWI). Endovascular therapy with the device should start within 6-16 hours of time last seen well in patients who are ineligible for intravenous tissue plasminogen activator (IV t-PA) or who fail IV t-PA therapy.
    Device Description

    The Solitaire™ Revascularization Device is designed to restore blood flow in patients experiencing ischemic stroke due to large intracranial vessel occlusion. The Solitaire™ Revascularization Device is intended for use in the neurovasculature such as the internal carotid artery, M1 and M2 segments of the middle cerebral artery, basilar, and the vertebral arteries. The distal nitinol portion of the Solitaire™ Revascularization Device facilitates clot retrieval and has Platinum/Iridium radiopaque markers on the proximal and distal ends and also features radiopaque markers along the circumference of the working length of the devices are supplied sterile and are intended for single-use only.

    AI/ML Overview

    The prompt asks to describe the acceptance criteria and the study that proves the device meets the acceptance criteria, based on the provided text.

    Based on the provided information, the submission is for a labeling modification to reduce the recommended minimum vessel diameter for the Solitaire™ Revascularization Device, 4 mm device models. The core device design and Indications for Use remain unchanged from the predicate devices. Therefore, the performance criteria and studies focus on demonstrating that this labeling modification does not introduce new safety or effectiveness concerns.

    Here's the breakdown of the information as requested:

    1. Table of acceptance criteria and the reported device performance:

    Acceptance Criteria (Implied)Reported Device Performance
    Bench Testing:
    Durability: Ability to withstand simulated use (delivery, resheathing, retrieval) in a representative tortuous model.Acceptance criteria met. (The test demonstrates the device can endure the mechanical stresses under simulated use with the reduced vessel diameter.)
    Radial Force: Maintain sufficient radial force at the minimum vessel diameter.Acceptance criteria met. (The test confirms appropriate interaction with the vessel wall even in smaller diameters.)
    Clinical Performance & Safety (for reduced vessel diameter): Equivalent clinical performance and safety profile in vessels down to 1.5-2.0mm compared to the predicate device in its approved vessel sizes.Retrospective subgroup analysis of the STRATIS registry data demonstrated that the subject Solitaire™ Revascularization 4 mm device, with vessel diameters of 1.5 to 2.0 mm, has similar clinical performance and safety profile compared to the predicate Solitaire™ Revascularization 4 mm device. This indicates the device continues to meet expected safety and effectiveness when used in smaller vessels within the new recommended range.

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

    • Test Set Sample Size: The exact sample size for the retrospective analysis of the STRATIS registry data is not explicitly stated in the provided text. It mentions "a retrospective subgroup analysis."
    • Data Provenance: The data is from the STRATIS registry, described as a retrospective analysis. The country of origin is not specified, but STRATIS (Stroke TreAtment with a Solitaire stent-retriever and Intravenous t-PA) is an international registry, so the data likely encompasses multiple countries.

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

    This information is not provided in the text. The STRATIS registry would have had various clinical endpoints and adjudication processes, but the details of experts establishing ground truth for the specific retrospective subgroup analysis are not described.

    4. Adjudication method for the test set:

    This information is not provided in the text.

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

    No MRMC study was performed. The device is a mechanical thrombectomy device, not an AI-assisted diagnostic tool.

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

    No standalone algorithm performance was done as this is a medical device (thrombectomy device), not an imaging or diagnostic algorithm.

    7. The type of ground truth used:

    For the clinical performance, the ground truth would be based on patient outcomes data collected as part of the STRATIS registry (e.g., successful reperfusion rates, clinical disability scores, adverse event rates), as adjudicated in the original registry study design. For the bench tests, the ground truth is based on engineering measurements against predefined specifications.

    8. The sample size for the training set:

    • Training Set Sample Size: The concept of a "training set" in the context of device approval (especially for a physical medical device and a labeling modification) is not applicable in the same way it would be for an AI/ML algorithm. The device design and previous iterations would have been "trained" through extensive R&D and prior clinical trials for predicate devices, but there isn't a "training set" in the computational sense.
    • The "retrospective analysis of subject vessel size was performed using the STRATIS registry data" to support the labeling modification, implying that this existing clinical data was used for validation rather than for "training" a new device or algorithm.

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

    As above, the concept of a "training set" with ground truth establishment in the AI/ML sense is not applicable for this device submission. The existing clinical data from the STRATIS registry, which includes patient outcomes, would serve as the "ground truth" for evaluating the clinical performance of the device in smaller vessels. The establishment of this ground truth would have been defined by the STRATIS registry protocol, including clinical assessments and imaging.

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    K Number
    K202318
    Date Cleared
    2020-09-14

    (28 days)

    Product Code
    Regulation Number
    870.1210
    Reference & Predicate Devices
    Predicate For
    N/A
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The Marathon™ Flow Directed Micro Catheter is intended to access the peripheral and neuro vasculature for the controlled selective infusion of physician-specified therapeutic agents such as embolization materials and of diagnostic materials such as contrast media.

    Device Description

    The Marathon™ Flow Directed Micro Catheters are single-lumen, endhole catheters designed for the sub selective infusion of physician-specified therapeutic agents such as embolization materials and diagnostic materials such as contrast media in tortuous, distal vessels. The catheter has a semi-rigid proximal shaft and a highly flexible distal shaft to facilitate the advancement of the catheter in the anatomy. The proximal end of the catheter incorporates a standard luer adapter to facilitate the attachment of accessories. The catheter has a radiopaque marker at the distal end to facilitate fluoroscopic visualization. The outer surfaces of the catheter are coated to increase lubricity. Microcatheter may be used with stylet, guidewire or introducer sheath to increase the rigidity of the distal section during introduction into the guiding catheter.

    AI/ML Overview

    The provided text describes a 510(k) premarket notification for a medical device, the Marathon™ Flow Directed Micro Catheter. The document focuses on demonstrating substantial equivalence to a predicate device through technical comparisons and bench testing.

    However, the provided text DOES NOT contain information regarding:

    • AI/Algorithm performance: This document is for a physical medical device, not an AI or algorithmic diagnostic tool.
    • Acceptance criteria for an AI model: The acceptance criteria listed are for physical characteristics and performance of a catheter.
    • Sample size for a test set or training set for an AI model: No AI model is being evaluated.
    • Data provenance, expert ground truth, adjudication methods, MRMC studies, or standalone performance: These are all concepts relevant to the evaluation of AI/ML-based medical devices or diagnostic algorithms, which are not the subject of this document.
    • Effect size of human reader improvement with AI assistance: Not applicable.
    • Type of ground truth used (pathology, outcomes data, etc.): Not applicable in this context.

    Therefore, I cannot provide a table of acceptance criteria and reported device performance in the context of an AI/ML model, nor can I answer the specific questions about AI model testing that were asked.

    The document instead focuses on demonstrating the substantial equivalence of the Marathon™ Flow Directed Micro Catheter to a predicate device (K093750) through bench testing and biocompatibility assessments.

    Here's the relevant information about the device's acceptance criteria and proven performance based on the provided text, re-framed to address the questions where applicable, but noting when the question is not relevant to this document.

    1. A table of acceptance criteria and the reported device performance (for the physical device, not AI):

    Bench Testing CategoryAcceptance Criteria (Test Method Summary)Reported Device Performance (Summary of Results)
    Biocompatibility
    CytotoxicityTest article extract should show no evidence of causing cell lysis or toxicity; should be non-cytotoxic.The test article met the requirements of the test since the test article was non-cytotoxic.
    HemocompatibilityTest article should show no evidence of color and be free of particulates; should be non-hemolytic.The test article met the test requirements and was non-hemolytic.
    Performance Data - Bench
    Dimension - Usable LengthMarathon™ Flow Directed Micro Catheter should measure 165 ± 2.5cm.The Marathon™ Flow Directed Micro Catheter met the acceptance criteria for usable length.
    Dynamic BurstEvaluated per ISO 10555-1 2014/A1:2017 Annex G.The Marathon™ Flow Directed Micro Catheter met the acceptance criteria for dynamic burst.
    Static BurstEvaluated per ISO 10555-1 2014/A1:2017 Annex F.The Marathon™ Flow Directed Micro Catheter met the acceptance criteria for static burst.
    Static Burst Post Plug & PushEvaluated per ISO 10555-1 2014/A1:2017 Annex F.The Marathon™ Flow Directed Micro Catheter met the acceptance criteria for static burst, post plug and push.
    Hub TensileEvaluated per ISO 10555-1 2013/A1:2017 Annex B.The Marathon™ Flow Directed Micro Catheter met the acceptance criteria for hub tensile.
    Hub Tensile Post Plug & PushEvaluated per ISO 10555-1 2014/A1:2017 Annex F.The Marathon™ Flow Directed Micro Catheter met the acceptance criteria for hub tensile post plug and push.
    DeadspaceMarathon™ Flow Directed Micro Catheter deadspace should be ≤ 0.27 ml and ≥ 0.23 ml, without Syringe adapter.The Marathon™ Flow Directed Micro Catheter met the acceptance criteria for deadspace.
    Visual InspectionMarathon™ Flow Directed Micro Catheter Hub should be clear and free from defects and crazing.The Marathon™ Flow Directed Micro Catheter met the acceptance criteria for visual inspection.
    Standard Luer Hub RequirementsEvaluated per ISO 80369-7:2016 and ISO 80369-20:2015.The Marathon™ Flow Directed Micro Catheter met the acceptance criteria for standard luer hub requirements.
    Hub Air LeakEvaluated per ISO 10555-1 2014/A1:2017 Annex D.The Marathon™ Flow Directed Micro Catheter met the acceptance criteria for hub air leak.

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

    • This document is for a physical medical device and discusses bench testing, not an AI model's test set.
    • Sample Size for Bench Testing:
      • Specific sample sizes for each bench test are not explicitly stated in this summary table, only the results. However, typical regulatory submissions for physical devices involve testing a statistically representative number of units.
    • Data Provenance: Not applicable in the terms used for AI. The data originates from internal laboratory bench testing conducted by the manufacturer (Micro Therapeutics, Inc. d/b/a ev3 Neurovascular).
    • Retrospective/Prospective: Not applicable in this context. These are lab tests.

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

    • Not applicable. This device is evaluated through engineering bench tests and biocompatibility testing, not through expert-labeled diagnostic data for an AI model.

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

    • Not applicable. This is for a physical device, not an AI test set requiring human adjudication.

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

    • Not applicable. This document is about a physical medical device (catheter), not an AI system that assists human readers. No MRMC study was conducted or is relevant.

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

    • Not applicable. This is not an AI algorithm.

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

    • For the biocompatibility tests, the "ground truth" is established by standard biological assays and the observation of cellular and blood responses against established safety thresholds.
    • For the bench performance tests, the "ground truth" is the physical properties and performance characteristics of the catheter as measured against predefined engineering specifications and international standards (e.g., ISO 10555-1, ISO 80369). These are objective measurements.

    8. The sample size for the training set:

    • Not applicable. There is no AI model requiring a training set described here.

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

    • Not applicable. There is no AI model or training set described here.
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    K Number
    K201689
    Date Cleared
    2020-07-21

    (29 days)

    Product Code
    Regulation Number
    870.1250
    Reference & Predicate Devices
    Predicate For
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The Riptide™ Aspiration System is intended for use in the revascularization of patients with acute ischemic stroke secondary to intracranial large vessel occlusive disease (within the internal carotid, middle cerebral M1 and M2 segments, basilar, and vertebral arteries) within 8 hours of symptom onset. Patients who are ineligible for intravenous tissue plasminogen activator (IV t-PA) or who fail IV t-PA therapy are candidates for treatment.

    Device Description

    The Riptide™ Aspiration System is composed of the following components:

    1. React™ Catheters
    2. Riptide™ Large Bore Aspiration Tubing
    3. Riptide™ Aspiration Pump
    4. RiptideTM Collection Canister with Intermediate Tubing
      No changes were made to the catheters, tubing or collection canister with intermediate tubing cleared in the predicate system under K172448 and, most recently, under K183185.
      The Riptide™ Aspiration Pump is designed to generate vacuum for the Riptide Aspiration System. The vacuum pressure of the Riptide Aspiration Pump is set by turning the vacuum control valve until the vacuum gauge reads a minimum of 20inHg but not exceeding 25inHg. The Riptide Aspiration Pump is reusable, non-sterile, and intended to be utilized outside of the sterile environment.
    AI/ML Overview

    The provided text describes the 510(k) clearance for the Riptide™ Aspiration System, a medical device, and its performance data. However, it does not describe a study that proves the device meets acceptance criteria related to an AI/ML component. The document details the device's technical specifications, non-clinical bench testing, and comparison to a predicate device, which are standard for K201689. It is a traditional medical device submission and does not involve AI/ML.

    Therefore, I cannot provide the requested information regarding acceptance criteria and study details for an AI/ML device, as the provided text does not contain such a study or information.

    If you have a document describing an AI/ML medical device and its validation study, please provide that, and I would be happy to analyze it according to your requested criteria.

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    K Number
    K201690
    Date Cleared
    2020-07-21

    (29 days)

    Product Code
    Regulation Number
    870.1330
    Reference & Predicate Devices
    Predicate For
    N/A
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The Hydrophilic Guidewire is indicated for general intravascular use to aid in the selective placement of catheters in the peripheral, visceral and cerebral vasculature during diagnostic and/or therapeutic procedures.

    Device Description

    The Hydrophilic Guidewire is a stainless-steel guidewire with a radiopaque, platinum distal coil. The guidewire has a hydrophilic coating that spans the distal 170 cm. Included within the sterile pouch is a pin vise to assist in guidewire manipulation and an introducer needle to ease the introduction of the guidewire into the catheter hub and/or hemostasis valve.

    AI/ML Overview

    The provided text describes the 510(k) premarket notification for the Mirage™ and X-pedion™ Hydrophilic Guidewires, asserting their substantial equivalence to a predicate device. The information primarily focuses on bench testing rather than AI/ML algorithm performance. Therefore, many of the requested details, such as those related to AI model training, expert ground truth, and human reader studies, are not applicable or cannot be extracted from this document.

    Here's the relevant information based on the provided text:

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

    TestAcceptance Criteria (Implicit: "met the acceptance criteria")Reported Device Performance
    Performance
    Visual Inspection and Dimensional VerificationMet the acceptance criteria for visual inspection and dimensional verification.The Mirage™ and X-pedion™ Hydrophilic Guidewires met the acceptance criteria for visual inspection and dimensional verification.
    Friction ForceMet the acceptance criteria for friction force.The Mirage™ and X-pedion™ Hydrophilic Guidewires met the acceptance criteria for friction force.
    FlexingMet the acceptance criteria for flexing.The Mirage™ and X-pedion™ Hydrophilic Guidewires met the acceptance criteria for flexing.
    ParticulateMet the acceptance criteria for particulate.The Mirage™ and X-pedion™ Hydrophilic Guidewires met the acceptance criteria for particulate.
    Tensile StrengthMet the acceptance criteria for tensile strength.The Mirage™ and X-pedion™ Hydrophilic Guidewires met the acceptance criteria for tensile strength.
    Corrosion ResistanceMet the acceptance criteria for corrosion resistance.The Mirage™ and X-pedion™ Hydrophilic Guidewires met the acceptance criteria for corrosion resistance.

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

    The document does not specify the exact sample sizes (number of guidewires) used for each bench test. The data provenance is from non-clinical bench testing conducted by Micro Therapeutics, Inc. d/b/a ev3 Neurovascular (the applicant).

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

    Not applicable. This is a medical device clearance based on substantial equivalence demonstrated through non-clinical bench testing, not an AI/ML algorithm requiring expert-established ground truth. The "ground truth" for these tests would be the physical properties and performance measurements of the guidewires against engineering specifications.

    4. Adjudication method for the test set

    Not applicable, as this is bench testing of physical device properties, not a study involving human interpretation of data where adjudication would be necessary.

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

    Not applicable. This document is for a physical medical guidewire, not an AI-powered diagnostic or assistive tool. No MRMC study was conducted or mentioned.

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

    Not applicable. This is for a physical medical guidewire.

    7. The type of ground truth used

    The "ground truth" for the bench tests would be the physical and mechanical specifications for guidewires, as referenced by standards such as ISO 11070 and USP <788>, as well as internal quality procedures (QP50324, TM0047). The tests evaluated observed performance against these predefined criteria.

    8. The sample size for the training set

    Not applicable. There is no training set for a physical medical device.

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

    Not applicable. There is no training set for a physical medical device.

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    K Number
    K193548
    Date Cleared
    2020-01-18

    (29 days)

    Product Code
    Regulation Number
    870.1330
    Reference & Predicate Devices
    Predicate For
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The Hydrophilic Guidewire is indicated for general intravascular use to aid in the selective placement of catheters in the peripheral, visceral and cerebral vasculature during diagnostic and/or therapeutic procedures.

    Device Description

    The Hydrophilic Guidewire is a stainless-steel guidewire with a radiopaque, platinum distal coil. The guidewire has a hydrophilic coating that spans the distal 170 cm. Included within the sterile pouch is a pin vise to assist in guidewire manipulation and an introducer needle to ease the introduction of the guidewire into the catheter hub and/or hemostasis valve.

    AI/ML Overview

    The provided text describes the 510(k) premarket notification for the Mirage™ Hydrophilic Guidewire and X-pedion™ Hydrophilic Guidewire. This document primarily focuses on demonstrating substantial equivalence to a predicate device through non-clinical (bench and biocompatibility) testing, rather than a study on an AI/ML-based medical device.

    Therefore, the information required to answer most of your questions about acceptance criteria for an AI/ML device, sample sizes for AI test sets, expert ground truthing, MRMC studies, standalone performance, training sets, and ground truth establishment for AI/ML models is not present in this document.

    However, I can extract information related to the acceptance criteria and performance data for the physical medical device as described:


    Acceptance Criteria and Device Performance (Based on Non-Clinical Bench Testing):

    The document details numerous non-clinical bench tests performed to demonstrate the safety and performance of the guidewires. The results consistently state that "The Mirage™ and X-pedion™ Hydrophilic Guidewires met the acceptance criteria for [Test Name]."

    Table of Acceptance Criteria and Reported Device Performance (Non-Clinical):

    Test CategorySpecific Test / ParameterAcceptance Criteria (Implied by positive outcome)Reported Device Performance
    Biocompatibility
    Chemical Characterization (Extractables/Leachables)No risk to the patient from Chemicals of Potential Concern (COPC).The extractables/leachables found are acceptable.
    CytotoxicityNo evidence of cell lysis or toxicity; grade < 2 (Mild).Considered non-cytotoxic.
    SensitizationNo delayed dermal contact sensitization.Does not elicit a sensitization response.
    IrritationDifference between test and control mean score = 0.0.Considered a non-irritant.
    Acute Systemic ToxicityNo mortality or systemic toxicity from extracts.Do not indicate signs of toxicity.
    Hemocompatibility (Hemolytic Index)Hemolytic index for direct contact < threshold (e.g., 0.5% / 0.6%).Hemolytic index was 0.5% (direct contact) and 0.6% (extract).
    Hemocompatibility (Complement System)Not considered to be potential activators of the complement system.Control and test articles are not considered to be potential activators.
    Hemocompatibility (Thrombogenic Potential)Acceptable thrombogenic potential.Demonstrates moderate thrombus formation (less than control article).
    PyrogenicityNo temperature rise of 0.5°C or more above baseline.No animal showed a temperature rise of 0.5°C or more.
    Microbial
    Ethylene Oxide (EO) ResidualMet criteria per ISO 10993-7.Met the acceptance criteria for ethylene oxide residual.
    Ethylene Chlorohydrin (ECH) ResidualMet criteria per ISO 10993-7.Met the acceptance criteria for ethylene chlorohydrin residual.
    Bioburden RecoveryMet criteria per ISO 11737-1.Met the acceptance criteria for bioburden recovery.
    BioburdenMet criteria per ISO 11737-1.Met the acceptance criteria for bioburden.
    Bacterial EndotoxinMet criteria per ANSI/AAMI ST72, USP <161>, and USP <85>.Met the acceptance criteria for bacterial endotoxin.
    Packaging
    Terminally Sterilized Medical DevicesMet criteria per ISO 11607.Met the acceptance criteria for packaging terminally sterilized medical devices.
    Performance (Bench)
    Device Compatibility/Distal AccessCompatible with ancillary devices, navigates tortuous vessels.Met the acceptance criteria for device compatibility/distal access.
    Distal FlexibilityNavigates through tortuous vessels.Met the acceptance criteria for distal flexibility.
    Visual FractureMet criteria per ISO 10555-1 and ISO 11070.Met the acceptance criteria for visual fracture.
    RadiopacityClearly visible during use.Met the acceptance criteria for radiopacity.
    Tip BucklingWithstands forces typical of clinical use.Met the acceptance criteria for tip buckling.
    Tip RetentionSatisfactory tip retention.Met the acceptance criteria for tip retention.
    Tip ShapeabilitySatisfactory tip shapeability.Met the acceptance criteria for tip shapeability.
    Torque ResponseDistal tip responds to proximal manipulations.Met the acceptance criteria for torque response.
    Turns to FailureWithstands torsional forces typical of clinical use.Met the acceptance criteria for turns to failure.
    Visual Inspection and Dimensional VerificationMeets specified dimensions.Met the acceptance criteria for visual inspection and dimensional verification.
    ParticulateMeets criteria per USP <788> for particulate counts and sizes.Met the acceptance criteria for particulate counts and sizes.
    Friction ForceSatisfactory friction force.Met the acceptance criteria for friction force.
    FlexingMet criteria per ISO 11070.Met the acceptance criteria for flexing.
    Corrosion ResistanceMet criteria per ISO 11070.Met the acceptance criteria for corrosion resistance.
    Tensile StrengthMet criteria per ISO 11070.Met the acceptance criteria for tensile strength.

    Since this is a 510(k) submission for a non-AI/ML medical device, the following information is not applicable or not provided in the document:

    1. Sample sizes used for the test set and the data provenance: Not an AI device, so no "test set" in the AI sense. Bench tests follow specific standards, implying sample sizes per those standards, but not explicitly stated here.
    2. Number of experts used to establish the ground truth for the test set and the qualifications of those experts: Not applicable; ground truth for a physical device is established via standardized physical and chemical tests, not expert human interpretation of data for AI.
    3. Adjudication method for the test set: Not applicable for non-AI bench testing.
    4. If a multi reader multi case (MRMC) comparative effectiveness study was done: Not applicable.
    5. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done: Not applicable.
    6. The type of ground truth used: For a physical guidewire, "ground truth" is typically defined by adherence to engineering specifications, material properties, and performance under simulated clinical conditions, verified through empirical testing following established ISO and USP standards.
    7. The sample size for the training set: Not applicable; this is not an AI/ML device.
    8. How the ground truth for the training set was established: Not applicable; this is not an AI/ML device.

    In summary, this document is a regulatory submission for a physical medical device demonstrating substantial equivalence, not an AI/ML device requiring clinical validation for diagnostic or prognostic purposes.

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    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use
    1. The Solitaire™ Revascularization Device is indicated for use to restore blood flow in the neurovasculature by removing thrombus for the treatment of acute ische to reduce disability in patients with a persistent, proximal anterior circulation, large vessel occlusion, and smaller core infarcts who have first received intravenous tissue plasminogen activator (IV t-PA). Endovascular therapy with the device should be started within 6 hours of symptom onset.

    2. The Solitaire™ Revascularization Device is indicated to restore blood flow by removing thrombus from a large intracranial vessel in patients experiencing ischemic stroke within 8 hours of symptom onset. Patients who are ineligible for IV t-PA or who fail IV t-PA therapy are candidates for treatment.

    3. The Solitaire™ Revascularization Device is indicated for use to restore blood flow in the neurovasculature by removing thrombus for the treatment of acute ische to reduce disability in patients with a persistent, proximal anterior circulation, large vessel occlusion of the internal carotid artery (ICA) or middle cerebral artery (MCA)-M1 segments with smaller core infarcts (< 70 cc by CTA or MRA, < 25 cc by MR-DWI). Endovascular therapy with the device should start within 6-16 hours of time last seen well in patients who are ineligible for intravenous tissue plasminogen activator (IV t-PA) or who fail IV t-PA therapy.

    Device Description

    The Solitaire™ Revascularization Device is designed to restore blood flow in patients experiencing ischemic stroke due to large intracranial vessel occlusion in the neurovasculature such as the Internal Carotid Artery (ICA), M1 and M2 segments of the middle cerebral artery, basilar, and the vertebral arteries. The distal nitinol portion of the Solitaire™ Revascularization Device facilitates clot retrieval and has Platinum/Iridium radiopaque markers on the proximal and distal ends. The Solitaire™ Platinum Revascularization Device also features radiopaque markers along the circumference of the working length of the devices are supplied sterile and intended for single-use only.

    AI/ML Overview

    The provided document describes the 510(k) premarket notification for the Solitaire™ Revascularization Device, seeking expanded indications for use. The acceptance criteria and the study used to demonstrate the device meets these criteria are detailed below.
    It's important to note that this document is for a medical device, not an AI algorithm. Therefore, many of the requested fields related to AI-specific performance metrics (e.g., human readers improvement with AI, standalone algorithm performance, AI data provenance, training set size, etc.) are not applicable here. The study focuses on the clinical effectiveness and safety of the physical device.


    1. Table of Acceptance Criteria and Reported Device Performance

    Since this is a medical device approval and not an AI algorithm, formal "acceptance criteria" in the sense of specific performance metrics with numerical thresholds are not explicitly stated as they would be for an AI submission. Instead, the study aims to demonstrate clinical safety and effectiveness for the expanded indications, primarily measured by patient outcomes. The key performance indicators are derived from the study endpoints.

    Outcome MeasureAcceptance Criteria (Not explicitly stated as numerical targets, but implied favorable outcome)Reported Device Performance (Solitaire Group vs. Control)
    Primary Efficacy Endpoint: Modified Rankin Scale (mRS) at 90 daysThe device should demonstrate a favorable shift in the distribution of mRS scores, indicating reduced post-stroke neurological disability, compared to standard medical therapy. Implicitly, this means a statistically significant improvement in functional outcomes.Favorable shift in mRS scores (p-value=0.014). Median mRS: Solitaire = 3.0 (IQR 2.0, 4.0) vs. Control = 4.0 (IQR 3.0, 6.0). For mRS 0-2 (functional independence): Solitaire = 31.2% (10/32) vs. Control = 15.3% (13/85). For mRS 6 (death): Solitaire = 12.5% (4/32) vs. Control = 27.1% (23/85).
    Primary Safety Endpoint: All-cause mortality at 90 daysMortality rate with the device should be acceptable and ideally lower than or comparable to the control group, demonstrating an acceptable safety profile.All-cause mortality: Solitaire = 10.5% (4/38) vs. Control = 25.6% (23/90). (Lower mortality in Solitaire group)
    Primary Safety Endpoint: Symptomatic Intracranial Hemorrhage (sICH) within 36 hoursThe occurrence of sICH should be low and acceptable, indicating a safe procedure.Symptomatic ICH: Solitaire = 2.6% (1/38) vs. Control = 4.4% (4/90). (Low rate in both groups, slightly lower in Solitaire)
    Technical Efficacy: (mTICI score)The device should achieve successful reperfusion (mTICI 2b/3) in a significant proportion of treated patients.mTICI ≥ 2b post-procedure (central reading): Solitaire = 65.6% (21/32). (mTICI was not assessed for the control group immediately post-procedure as they did not undergo endovascular therapy).
    Imaging Outcomes: Reperfusion rate (Tmax > 6 seconds)The device should demonstrate a high rate of successful reperfusion (>90% reduction in region of perfusion delay) compared to control.Reperfusion rate (%): Solitaire = 92.6 ± 20.2 (24) [Median 100.0] vs. Control = 48.7 ± 46.0 (63) [Median 53.8]. Successful reperfusion (>90%): Solitaire = 83.3% (20/24) vs. Control = 17.5% (11/63).
    Imaging Outcomes: Complete recanalization at 24hThe device should achieve a high rate of complete recanalization of the primary arterial occlusive lesion.Complete recanalization at 24h: Solitaire = 82.8% (24/29) vs. Control = 19.2% (14/73).
    Imaging Outcomes: Infarct volume (ml) at 24hThe device should ideally result in smaller infarct volumes and less infarct growth compared to control.Infarct volume (ml) at 24h per core lab: Solitaire = 64.5 ± 67.2 (38) [Median 35.0] vs. Control = 74.3 ± 80.7 (89) [Median 41.0]. (Slightly smaller median volume in Solitaire group, but mean is similar). Infarct growth (ml) at 24h per core lab: Solitaire = 48.6 ± 61.4 (38) [Median 19.9] vs. Control = 57.6 ± 70.6 (89) [Median 32.8]. (Smaller median growth in Solitaire group).
    Additional Safety: Procedural ComplicationsLow rates of arterial dissection, access site complications requiring surgical repair/transfusion, embolization to previously unaffected territory, and vessel perforation, indicating procedure safety.Arterial dissection: 0.0% (0/38). Access site complication requiring surgical repair or transfusion: 0.0% (0/38). Embolization to previously unaffected territory: 0.0% (0/38). Vessel perforation: 2.6% (1/38).

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

    • Test Set (Analysis Cohort - mITT):
      • Solitaire group: 32 subjects (from an initial 38 out of 182 total in DEFUSE 3 where Solitaire was the first device used)
      • Control group: 85 subjects (from an initial 90 out of 182 total in DEFUSE 3)
      • Total mITT: 117 subjects
      • Data provenance: The original DEFUSE 3 study was a multicenter, randomized, open-label trial (prospective). The document doesn't specify countries, but DEFUSE 3 was a US-based trial involving multiple sites across the United States. The analysis performed for this submission was a sub-analysis (post-hoc) of previously collected prospective clinical trial data.

    3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts
    The document does not specify the number or qualifications of experts involved in establishing "ground truth" for the test set. However, it mentions several elements that would have required expert interpretation:

    • Blinded outcome assessment: The primary outcome (mRS at day 90) was evaluated by blinded assessors, implying qualified personnel.
    • Central reading of imaging: mTICI scores and other imaging outcomes were assessed by a "central reader" and "core lab," which implies expert radiologists/neurologists, though specific numbers or qualifications are not provided in this document.
    • RAPID software: Used for imaging analysis (ischemic core volume, mismatch ratio, mismatch volume), suggesting a standardized, software-assisted approach to image interpretation for eligibility and outcomes.

    4. Adjudication method for the test set
    The document does not explicitly describe an adjudication method like 2+1 or 3+1 for the test set. Instead, it states:

    • "Blinded outcome assessment" for the modified Rankin Scale (mRS) at day 90.
    • "Central reading" for mTICI and other imaging parameters by a "core lab."
      These practices typically involve a single expert or a panel of experts making determinations in a blinded fashion, but specific adjudication rules are not detailed.

    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 device (revascularization device), not an Artificial Intelligence (AI) algorithm. Therefore, an MRMC study comparing human readers with and without AI assistance was not performed or relevant to this submission.

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

    • Not applicable. This submission is for a physical medical device, not an AI algorithm. Therefore, a standalone performance assessment of an algorithm was not performed. The "Solitaire" device itself is the intervention being evaluated.

    7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.)
    The "ground truth" or reference standard for evaluating the device's effectiveness and safety was based on:

    • Clinical outcomes data: Primarily the Modified Rankin Scale (mRS) scores at 90 days, which are well-established clinical measures of functional independence after stroke.
    • Mortality rates: All-cause mortality at 90 days.
    • Safety event rates: Occurrence of symptomatic intracranial hemorrhage (sICH) and other adverse events.
    • Imaging-based outcomes: Reperfusion rates (TICI scores), complete recanalization, infarct volume, and infarct growth, assessed by central readers/core labs, serving as objective measures of the device's action.

    8. The sample size for the training set

    • Not applicable. This submission is for a physical medical device, not an AI algorithm. There is no "training set" in the context of machine learning. The clinical data from the DEFUSE 3 study served as the primary evidence for the device's clinical performance.

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

    • Not applicable. As noted above, there is no "training set" for an AI algorithm in this context. The "ground truth" for the clinical study (DEFUSE 3) involves established clinical endpoints (mRS, mortality, sICH) and imaging assessments by expert clinicians and core labs, as described in point 7.
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    K Number
    K183022
    Date Cleared
    2019-01-29

    (89 days)

    Product Code
    Regulation Number
    882.5600
    Reference & Predicate Devices
    Predicate For
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use
    1. The Solitaire™ Revascularization Device is indicated for use to restore blood flow in the neurovasculature by removing thrombus for the treatment of acute ischemic stroke to reduce disability in patients with a persistent, proximal anterior circulation, large vessel occlusion, and smaller core infarcts who have first received intravenous tissue plasminogen activator (IV t-PA). Endovascular therapy with the device should be started within 6 hours of symptom onset.
    2. The Solitaire™ Revascularization Device is indicated to restore blood flow by removing thrombus from a large intracranial vessel in patients experiencing ischemic stroke within 8 hours of symptom onset. Patients who are ineligible for IV t-PA or who fail IV t-PA therapy are candidates for treatment.
    Device Description

    The Solitaire™ 4 Revascularization Device is designed to restore blood flow in patients experiencing ischemic stroke due to large intracranial vessel occlusion. The Solitaire™ 4 Revascularization Device is designed for use in the neurovasculature such as the Internal Carotid Artery (ICA), M1 and M2 segments of the middle cerebral artery, basilar, and the vertebral arteries. The distal nitinol portion of the Solitaire™ 4 Revascularization Device facilitates clot retrieval and has Platinum/Iridium radiopaque markers on the proximal and distal ends. The Solitaire™ 4 Revascularization Device also features radiopaque markers along the circumference of the working length of the device. The devices are supplied sterile and are intended for single-use only.

    AI/ML Overview

    The provided text is a 510(k) Summary for the Solitaire™ 4 Revascularization Device, which is a medical device for treating acute ischemic stroke. It describes the device, its indications for use, comparison to a predicate device, and performance data.

    However, the questions posed in your request (Acceptance Criteria, Study Details, Sample Size, Expert Ground Truth, Adjudication, MRMC Study, Standalone Performance, Ground Truth Type, Training Set Details) are typically associated with the evaluation of AI/ML-driven medical devices that require demonstration of algorithmic performance against a defined ground truth.

    The Solitaire™ 4 Revascularization Device is a physical mechanical thrombectomy device. The performance data provided in this document focuses on bench testing (non-clinical) to ensure the device's physical properties, such as length, force, particulate generation, durability, and tensile strength, meet specifications. It explicitly states:

    • "No clinical or animal testing was performed on the subject device because there is no change in the indications for use or the fundamental scientific technology of the device."
    • "Bench testing confirmed that the modifications to Solitaire™ 4 met product specifications and do not raise new questions on the safety and effectiveness of the device."

    Therefore, most of the information requested, which pertains to AI/ML device validation, is not applicable to this traditional medical device submission.

    Here's a breakdown of what can be extracted from the document based on your questions, and what cannot:

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

    The document provides a summary of non-clinical bench tests. It states that "Acceptance criteria met" for each test, but it does not specify the numerical acceptance criteria themselves or the reported performance values. It only confirms that the device passed.

    TestTest Method SummaryAcceptance Criteria MetReported Device Performance
    Total System LengthMeasured from the distal tip of the distal marker to the proximal tip of the delivery system.YesNot specified
    Fluorosafe Marker LengthMeasured from the measurement of the length from the distal tip of the device to distal end of the marker.YesNot specified
    Delivery ForceMeasured through a representative tortuous anatomical model.YesNot specified
    Re-Sheathing ForceMeasured through a representative tortuous anatomical model.YesNot specified
    ParticulateEvaluated for generation under simulated use in a representative tortuous anatomical model.YesNot specified
    DurabilityEvaluated on the ability to withstand simulated use of the device, including delivery, resheathing and retrieval in a representative tortuous model with the appropriate ancillary devices.YesNot specified
    System TensileFollowing simulated use, the tensile force testing is performed to verify the amount of force it takes to detach the device meets the acceptance criteria.YesNot specified
    TorquePerformed to verify the stent joint withstands a minimum of one rotation on the proximal wire following simulated use.YesNot specified
    Marker TensilePerformed to verify the strength of the laser weld of the Pt/Ir marker coil to the Nitinol distal finger of the device.YesNot specified

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

    The document doesn't provide specific sample sizes (e.g., number of devices tested) for the bench tests. It also does not discuss data provenance in terms of country of origin or retrospective/prospective, as this is laboratory bench data, not clinical patient data.

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

    Not applicable. Ground truth as typically understood for AI/ML models (e.g., medical image annotations) is not relevant for the bench testing of a physical device. The "ground truth" here is engineering specifications and physical measurements.

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

    Not applicable. This is not a process that requires multi-reader adjudication.

    5. If a multi reader multi case (MRMC) comparative effectiveness study was done:

    No, an MRMC study was explicitly not done. The document states: "No clinical or animal testing was performed on the subject device because there is no change in the indications for use or the fundamental scientific technology of the device."

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

    Not applicable. This is a physical medical device, not an algorithm.

    7. The type of ground truth used:

    The "ground truth" for the bench tests is the engineering specifications and performance standards set for the device's physical properties. For example, a "System Tensile" test has a pre-defined acceptance criterion for the amount of force the device must withstand.

    8. The sample size for the training set:

    Not applicable. This is not an AI/ML device that requires a training set.

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

    Not applicable.

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    K Number
    K183185
    Date Cleared
    2018-12-18

    (29 days)

    Product Code
    Regulation Number
    870.1250
    Reference & Predicate Devices
    Predicate For
    N/A
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The Riptide™ Aspiration System is intended for use in the revascularization of patients with acute iscoke secondary to intracranial large vessel occlusive disease (within the internal carotid, middle cerebral M1 and M2 segments, basilar, and vertebral arteries) within 8 hours of symptom onset. Patients who are ineligible for intravenous tissue plasminogen activator (IV t-PA) or who fail IV t-PA therapy are candidates for treatment.

    Device Description

    The Riptide™ Large Bore Aspiration Tubing is provided sterile and intended for single-use. The Riptide™ Large Bore Aspiration Tubing serves as a conduit to supply vacuum from the Riptide™ Aspiration Pump to the distal tip of the catheter. The Riptide™ Large Bore Aspiration Tubing provides a connection between the sterile and non-sterile environments. The proximal end of the Riptide™ Large Bore Aspiration Tubing is connected to the Riptide™ Canister (outside of the sterile environment) while the distal end of the Riptide™ Large Bore Aspiration Tubing is connected to the catheter (inside the sterile environment). The Riptide™ Canister is connected to the Riptide™ Aspiration Pump (also outside of the sterile environment) via the Intermediate Tubing. The Riptide™ Large Bore Aspiration Tubing is designed to allow the user to control the application via an in-line flow switch.

    AI/ML Overview

    Here's an analysis of the provided text, focusing on acceptance criteria and study details.

    Important Note: The provided document is a 510(k) summary for the FDA. These summaries typically focus on demonstrating substantial equivalence to a predicate device, often by leveraging data from the predicate or conducting limited bench testing. They are not necessarily full-fledged clinical trials for a new device's efficacy. This document describes a component of a system (Large Bore Aspiration Tubing) and mostly relies on prior testing of the overall system and predicate device. Therefore, many of the typical AI/medical device study questions (like effect size, reader improvements, ground truth establishment for a training set) aren't directly applicable or answered in this context.

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

    The document lists several tests, and for most, the acceptance criterion is implied by the "met the acceptance criteria" statement. Specific numerical criteria are not detailed in this summary.

    TestAcceptance Criteria (Implied)Reported Device Performance
    CompatibilityCompatible with specified catheters and collection canisterMet acceptance criteria
    Ethylene Oxide (EO) ResidualWithin acceptable limits for EO residualMet acceptance criteria
    Ethylene Chlorohydrin (ECH) ResidualWithin acceptable limits for ECH residualMet acceptance criteria
    Bioburden RecoveryMet acceptance criteriaMet acceptance criteria
    BioburdenMet acceptance criteriaMet acceptance criteria
    Bacterial EndotoxinWithin acceptable limits for bacterial endotoxinMet acceptance criteria
    Packaging Aseptic PresentationMaintained aseptic presentationMet acceptance criteria
    Seal WidthWithin specified seal width rangeMet acceptance criteria
    Dye LeakNo dye leakage detectedMet acceptance criteria
    Visual InspectionPassed visual inspectionMet acceptance criteria
    Bubble LeakNo bubble leakage detectedMet acceptance criteria
    LegibilityLabeling was legibleMet acceptance criteria
    Foreign MaterialNo foreign material detectedMet acceptance criteria
    Seal StrengthWithin specified seal strength limitsMet acceptance criteria
    Dimensional InspectionDimensions (length, inner/outer diameter) within specificationsMet acceptance criteria
    Identification (ON/OFF Heat Shrink Bands)Heat shrink bands correctly identifiedMet acceptance criteria
    Identification (Flow Switch)Flow switch correctly identifiedMet acceptance criteria
    Joint Tensile StrengthWithstood specified tensile force without failureMet acceptance criteria
    Leak (Vacuum Decay)Maintained specified vacuum pressure without significant decayMet acceptance criteria
    Degree of CollapseMet requirements of ISO 10079-3 for degree of collapseMet acceptance criteria
    Recanalization (System)Met acceptance criteria for recanalization (leveraged)Met acceptance criteria
    Vacuum Pressure (System)Met acceptance criteria for vacuum pressure (leveraged)Met acceptance criteria
    Volumetric Flow Rate (System)Met acceptance criteria for volumetric flow rate (leveraged)Met acceptance criteria
    Usability (System)Met acceptance criteria for usability (leveraged)Met acceptance criteria

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

    • Sample Size: Not explicitly stated for specific tests. The tests mentioned are primarily bench tests on the device itself or leveraged from a predicate device. So, it refers to the number of units tested.
    • Data Provenance: The tests are non-clinical bench tests. It doesn't involve human patient data or geographic origin in the way clinical studies do. The data is generated in a lab setting. It is essentially prospective in the sense that these tests were performed specifically for this submission.

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

    Not applicable. This is not an AI/diagnostic device that establishes a "ground truth" based on expert interpretation. The tests are engineering and performance evaluations.

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

    Not applicable. This is not an AI/diagnostic device requiring expert adjudication of results.

    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 a medical device (aspiration tubing), not an AI diagnostic tool. No MRMC study was performed.

    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.

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

    The "ground truth" for the bench tests would be the established engineering/performance specifications and standards (e.g., ISO, ASTM, internal specifications) against which the device's performance is measured. For example, a leak test's "ground truth" is that there should be no detectable leak under specified pressure/vacuum.

    8. The sample size for the training set

    Not applicable. This is a physical medical device, not an AI model requiring a training set.

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

    Not applicable. This is a physical medical device, not an AI model.

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