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510(k) Data Aggregation

    K Number
    K212894
    Device Name
    PhasTIPP
    Date Cleared
    2022-03-31

    (202 days)

    Product Code
    Regulation Number
    870.4885
    Reference & Predicate Devices
    Why did this record match?
    Applicant Name (Manufacturer) :

    LeMaitre Vascular Inc.

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

    The PhasTIPP System is indicated for use in ambulatory phlebectomy procedures for the resection and ablation of varicose veins. The Illuminator is also indicated for use without the Resector for visualization of varicose veins and infusion of tumescent solution during an ambulatory phlebectomy procedure.

    Device Description

    The PhasTIPP System consists of an Illuminator and a Resector. During the surgical procedure, the illuminator shaft is placed through an incision under the skin with its light-emitting end to provide intense light for a better visualization of the varicose veins. A port that runs along the illuminator shaft is used to infuse tumescence solution to cause the contraction of varicosities, which aids vein visualization by creating a subcutaneous fluid pocket through which the illuminator's light can disperse. A powered resector, positioned through a different incision can then be used to morcellate and aspirate the varicosities.

    The PhasTIPP Illuminator consists of two devices: a reusable Illuminator Handpiece and a disposable Illuminator.

    The Handpiece provides illumination controls and contains an LED to provide intense light. The Handpiece is powered with new batteries for each new surgical procedure (Duracell CR 123a cell). The handpiece is provided non-sterile and must be covered with the microbial barrier sheath attached to the Disposable Illuminator in the sterile field before the procedure begins.

    The Disposable Illuminator includes, in addition to the microbial barrier sheath, a distal stainless steel fiber optic light shaft. When connected to a peristaltic pump, the Disposable Illuminator can also infuse tumescence.

    The PhasTIPP Resector consists of two devices: a reusable Resector Handpiece and a Resector Disposable (available in two diameters, 4.5mm and 5.5mm). The Disposable Resector also connects to a peristaltic suction pump to remove the resected varicosities.

    The Resector Handpiece provides controls for the operation of the rotation blades on the Disposable Resector and is powered with a set of new batteries (TLM-1550 HPM cell), for each surgical procedure. The Resector Handpiece is provided non-sterile and must be covered with the microbial barrier sheath attached to the Disposable Resector in the sterile field.

    The Control Unit that was a large equipment in the predicate device is displaced in the subject device. Instead, the Resector Handpiece and the Illuminator Handpiece control the disposable resector and illuminator in the subject device.

    AI/ML Overview

    This document describes the PhasTIPP System, an external vein stripper. The FDA's 510(k) summary provides details about the device, its intended use, and the testing conducted to establish its substantial equivalence to a predicate device.

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

    The provided document doesn't explicitly state "acceptance criteria" in a tabulated format alongside "reported device performance" in the way one might expect for a clinical study with primary endpoints. Instead, it lists various design validation, system validation, and performance tests that were completed to demonstrate the device meets product performance specifications and for substantial equivalence.

    For the purpose of this request, I will infer the "acceptance criteria" from the types of tests performed and the "reported device performance" as the overall statement that the device meets these specifications.

    Acceptance Criteria (Inferred from Tests)Reported Device Performance (Summary)
    Illuminator Design Validation:The Illuminator's design, including shaft dimensions, flow rate, light output, leak testing, sheath integrity and usability, and tensile/torque strengths of components, met specifications.
    Shaft diameter, length, IV spike to pump, pump tube, pump to hub lengthsMet specifications
    Flow Rate (ml/min)Met specifications
    Light Output (lumens)Met specifications
    Leak TestingPassed
    Sheath Length (in)Met specifications
    Usability Through SheathConfirmed
    Sheath Maintains Microbial BarrierConfirmed
    Tensile Strength: Hub to Shaft (lbf), Disposable (lbf), Pump tube to Connectors, IV Spike to Tubing (lbf)Met specifications
    Torque Strength: Disposable (in-lb)Met specifications
    Kink Test: Infusion TubingPassed
    Illuminator System Validation:The Illuminator's system functions, including basic operation and low battery performance, were verified.
    Basic FunctionVerified
    Low Battery FunctionalityVerified
    Fault Insertion and Power Supply Fuse testingVerified
    Resector System Validation:The Resector's system functions, including voltage regulation, motor RPM, home position, communications, diagnostics, embedded processor, and battery critical function, were verified.
    Voltage RegulationVerified
    Motor RPMVerified
    Home Position and Home Position DriftVerified
    Communications and Diagnostic LoggingVerified
    Embedded Processor Hardware Basic FunctionVerified
    Jam ClearVerified
    Battery Critical FunctionVerified
    Embedded processor/Software loadVerified
    Resector Software Integration Validation:The Resector's software integration for timer, low battery, hardware configuration, motor state machine, oscillation, anti-stall, high current fault, motor time save/retrieve, and RTC were validated.
    Timer functionalityValidated
    Low battery functionalityValidated
    Low level hardware configuration of the micro-controller hardwareValidated
    Motor state machine runningValidated
    Functionality of the oscillation feature and softwareValidated
    Fault states related to the "anti-stall routineValidated
    High motor current fault by simulating excessive motor currentValidated
    Motor time save and retrieve functionValidated
    Real Time Clock (RTC) against the system clockValidated
    Battery critical lockout featureValidated
    Resector Design Validation:The Resector's design, including shaft diameters and lengths, aspiration tube characteristics, sterile sheath integrity, and tensile/torque strengths of components, met specifications.
    Shaft Diameter (4.5mm & 5.5mm)Met specifications
    Shaft Length (4.5mm & 5.5mm)Met specifications
    Aspiration Tube LengthMet specifications
    Aspiration Tube tensile strength to ConnectorMet specifications
    Kink Testing & Leak TestingPassed
    Bond Tubing to Back LidMet specifications
    Aspiration Flow Rate Comparison (4.5 & 5.5)Met specifications
    Motor Functionality DataMet specifications
    Sterile Sheath: Adequate length, Microbial Barrier Testing, Maintains Contamination BarrierConfirmed
    Tensile Strength: Disposable Hub to Main Shaft (4.5mm & 5.5mm), Driven Gear to the resector inner shaft (4.5mm & 5.5mm), Disposable Assembly to HandpieceMet specifications
    Torque Strength: Disposable Hub to Shaft assembly, Driven Gear to the resector inner shaftMet specifications
    Bonded joint between proximal hub and the backlidMet specifications
    Distal Hub Pinned to proximal resectorMet specifications
    Microbial Sheath Barrier Design Validation:The sheath's bubble leak test confirmed its barrier integrity.
    Sheath Bubble Leak TestPassed
    PhasTIPP Illuminator Injection Line Design Validation:The injection line's pressurized leak testing met specifications.
    Pressurized Leak TestingPassed
    PhasTIPP Illuminator Injection Line Shelf Life Validation (2 years Accelerated aging):The injection line maintained performance after accelerated aging.
    Pressurized Leak TestingPassed
    Flow Rate MeasurementMet specifications
    Luer Fitting Tensile Strength testMet specifications
    Overall LengthMet specifications
    PhasTIPP Performance Testing:System performance was confirmed in a 3D in-vitro bench test.
    System performance in 3D in-vitro bench testConfirmed
    PhasTIPP Illuminator Heat Evaluation:The heat produced by the Illuminator was evaluated.
    Evaluation of heat produced by PhasTIPP IlluminatorEvaluated (implies within acceptable limits for a medical device)
    PhasTIPP Testing to IEC 60601 Medical Electrical Equipment:The device met relevant IEC 60601 standards for electromagnetic compatibility.
    Radiated EmissionsCompliant
    Electro-Static DischargeCompliant
    Radiated Field ImmunityCompliant
    Power Frequency Magnetic FieldCompliant
    Biocompatibility (ISO 10993-1:2018):The device was found to be biocompatible for its intended use.
    External Communicating Device, Contact Circulating Blood, limited use (
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    K Number
    K183513
    Date Cleared
    2019-06-13

    (177 days)

    Product Code
    Regulation Number
    882.5910
    Reference & Predicate Devices
    Why did this record match?
    Applicant Name (Manufacturer) :

    LeMaitre Vascular Inc.

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

    The DuraSure Biologic Patch is intended for use as a surgical patch material to close dura mater during neurosurgery.

    Device Description

    The DuraSure consists of one piece of bovine pericardial tissue that has been selected for minimal tissue blemishes. The tissue is treated with a glutaraldehyde process which crosslinks the collagen fibers and minimizes antigenicity. The DuraSure is liquid chemical sterilized and packaged in a plastic jar containing sterile glutaraldehyde storage solution. The DuraSure is designed to repair the body's natural organs.

    AI/ML Overview

    Here's a breakdown of the acceptance criteria and the study details for the DuraSure Biologic Patch, based on the provided FDA 510(k) summary:

    1. Table of Acceptance Criteria and Reported Device Performance

    TestAcceptance CriteriaDuraSure Biologic Patch PerformancePredicate Device Performance
    Tensile Strength≥ 2 MPaMean: 11.9 MPaNot explicitly stated (implied to meet acceptance criteria, but specific value for predicate device not given, only "mean of tensile strength of the predicate device was [value not provided]" in text)
    Elongation5% - 50% elongationMean: 25% elongationMean: 32% elongation
    Burst Strength≥ 12 PSIMean: 127 PSIMean: 59 PSI
    Suture Retention≥ 300 gfMean: 970 gfMean: 978 gf
    Thickness0.35 mm - 0.75 mmPassed acceptance criteria0.32 mm - 0.71 mm
    BiocompatibilitySatisfactory biocompatibility (implied, by comparison to predicate)Satisfactory biocompatibility resultsEstablished biocompatibility
    SterilizationChemically sterilized according to ISO14160: 2011 with 10⁻⁶ SALChemically sterilized according to ISO14160: 2011 with 10⁻⁶ SALChemically sterilized with 10⁻⁶ SAL
    Animal Study ConclusionTest article is locally non-toxic and performs equivalently to control in dural repair model.Test article is locally non-toxic; performed equivalently to control.Control article deemed locally non-toxic and performed equivalently to test article.

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

    The document focuses on "pre-clinical" testing, which includes both in-vitro (bench) testing and an in-vivo animal study.

    • Bench Testing (Tensile, Elongation, Burst Strength, Suture Retention, Thickness):

      • Sample Size: Not explicitly stated for each test (e.g., "All DuraSure patches passed the acceptance criteria"). However, results are given as "mean" values, implying multiple samples were tested for each characteristic.
      • Data Provenance: Not specified, but generally refers to laboratory testing conducted by the manufacturer or contracted labs. The country of origin is not mentioned. This is retrospective data collected for the 510(k) submission.
    • In-vivo Animal Study:

      • Sample Size: Forty-nine (49) rabbits.
      • Data Provenance: Not explicitly stated, but implies a controlled laboratory setting for animal research. This is prospective data collected during the study.

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

    • Bench Testing: No experts are typically used to establish ground truth for this type of quantitative functional testing. The "ground truth" is defined by the physical measurement methods and the device specifications.
    • In-vivo Animal Study:
      • Number of Experts: At least one. The document states, "All slides were evaluated by a veterinary pathologist for neuropathological changes in brain tissue, dural integrity, neoduralization and local tissue reaction according to ISO 10993-6 and FDA Guidance."
      • Qualifications: "veterinary pathologist." No further details on years of experience or specific sub-specialties are provided.

    4. Adjudication Method for the Test Set

    • Bench Testing: Not applicable. These are objective measurements following established test methods.
    • In-vivo Animal Study: Not explicitly described. It states "All slides were evaluated by a veterinary pathologist." This implies a single expert assessment. If multiple pathologists were involved, no method for resolving disagreements (e.g., 2+1, 3+1) is mentioned.

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

    No, an MRMC comparative effectiveness study was not done. The studies presented are pre-clinical (bench and animal studies) and do not involve human readers evaluating cases.

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

    No, this question is not applicable. The DuraSure Biologic Patch is a physical medical device (surgical patch material), not an AI algorithm or software device. Therefore, a standalone performance evaluation of an algorithm is not relevant.

    7. The Type of Ground Truth Used

    • Bench Testing: The ground truth is based on objective quantitative measurements obtained using standardized test methods (e.g., Instron for tensile/elongation/suture retention, pressure sensors for burst strength, thickness gauges).
    • In-vivo Animal Study: The ground truth for the animal study was established through histopathological evaluation by a veterinary pathologist, based on internationally recognized standards (ISO 10993-6) and FDA guidance for dural substitute devices. This includes macroscopic and microscopic evaluations, with scoring.

    8. The Sample Size for the Training Set

    This question is not applicable. The DuraSure Biologic Patch is a physical medical device, not a machine learning model. Therefore, there is no "training set" in the context of AI.

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

    This question is not applicable, as there is no training set for a physical medical device.

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    K Number
    K173323
    Date Cleared
    2018-03-08

    (139 days)

    Product Code
    Regulation Number
    878.4300
    Reference & Predicate Devices
    Why did this record match?
    Applicant Name (Manufacturer) :

    LeMaitre Vascular, Inc.

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

    The AnastoClip GC is intended for use in the creation of everting anastomoses in blood vessels and other small tubular structures when tissue penetration is desired. The Applier is also intended for approximation of durotomies following open craniotomy and open spinal laminectomy procedures.

    Device Description

    AnastoClip GC Closure System is designed to create everting anastomoses of tissue. It includes the applier, clip remover, and atraumatic forceps. The AnastoClip GC applier consists of a rotating shaft and an integral cartridge containing titanium clips. As the levers of the applier are squeezed together, the clip is closed around the everted tissue edges. As the levers are released, a new clip is automatically loaded into the clip applier jaws. It is recommended, with each procedure, to use the atraumatic everting forceps to aid in the everting of the tissue edges. It is also recommended, with each procedure, to use the AnastoClip Remover for the removal of any AnastoClip GC clips when needed.

    AI/ML Overview

    The provided text describes the AnastoClip GC Closure System, a medical device. Based on the information presented, here's a breakdown of the acceptance criteria and the study that proves the device meets them:

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

    The document does not explicitly state quantitative "acceptance criteria" in a table format with corresponding "reported device performance" values for a specific study. Instead, it describes a preclinical study that aimed to demonstrate safety and substantial equivalence to a predicate device for an expanded indication. The "acceptance criteria" can be inferred from the successful outcomes of this study.

    Here's an inferred table based on the preclinical study's reported findings:

    Acceptance Criteria (Inferred from successful study outcomes)Reported Device Performance (AnastoClip GC)
    Absence of CSF leaks at cranial and spinal dural sitesNo CSF leaks observed at both cranial and spinal dural sites after application.
    No clinically significant changes in body weight, body condition score, or clinical pathology parametersNo clinically significant changes in body weight, body condition score, or clinical pathology parameters in any animal over the course of the study.
    Absence of adverse responses (inflammation, infection) in CSF samplesNo CSF sample exhibited any indication of adverse responses such as inflammation or infection.
    Absence of hydrocephalus or other abnormalities via CT scanNo signs of hydrocephalus or other abnormalities noted from the CT scan evaluations.
    Comparable histopathologic findings (minimal fibrosis, vascularization, hemorrhage, no necrosis, infection, or foreign body reaction) compared to predicateHistologic findings were comparable to the predicate device (AnastoClip AC), with minimal fibrosis and vascularization, minimal hemorrhage, and no implant-associated necrosis, infection or foreign body reaction.

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

    • Test Set Sample Size: 6 porcine models.
    • Data Provenance: The study was a "Pre-clinical GLP safety evaluation" performed in porcine models. The country of origin is not specified, but it's a prospective animal study.

    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 specify the number of experts or their qualifications for establishing ground truth. It states that a "comprehensive necropsy was performed" and "histomorphologic evaluation" of cranial and spinal implant sites was conducted. These evaluations would typically be done by veterinary pathologists, but their number and specific qualifications are not detailed.

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

    The document does not provide details on any adjudication method for the test set. It simply states that a "comprehensive necropsy" and "histomorphologic evaluation" were performed.

    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 describes a preclinical animal study for a medical device (surgical clip system), not an AI-powered diagnostic tool. Therefore, an MRMC comparative effectiveness study involving human readers and AI assistance was not performed and is not applicable.

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

    This question is not applicable as the device is a physical surgical closure system, not an algorithm or AI system.

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

    The ground truth for the preclinical study was established through a combination of:

    • Direct observation: Absence of CSF leaks.
    • Clinical observation: Body weight, body condition score, clinical pathology parameters in animals.
    • Laboratory analysis: CSF sample analysis (for inflammation/infection).
    • Imaging: CT scan evaluations (for hydrocephalus/abnormalities).
    • Pathology/Histomorphology: Microscopic evaluation of cranial and spinal implant sites.

    8. The sample size for the training set

    This question is not applicable as the device is a physical medical device and does not involve AI or machine learning that requires a training set.

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

    This question is not applicable as the device is a physical medical device and does not involve AI or machine learning that requires a training set.

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    K Number
    K152833
    Date Cleared
    2016-01-21

    (114 days)

    Product Code
    Regulation Number
    870.4450
    Reference & Predicate Devices
    Why did this record match?
    Applicant Name (Manufacturer) :

    LEMAITRE VASCULAR, INC.

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

    The Pruitt F3-S Polyurethane Carotid Shunt is in carotid endarterectomy as a temporary conduit to allow for blood flow between the common and internal carotid arteries.

    Device Description

    The Pruitt F3-S Polyurethane Carotid Shunt is designed to serve as an artificial passage connecting two blood vessels allowing blood flow from one vessel to another. This is accomplished by using a clear, plastic, sterile conduit that is held in place by a stabilization technique (balloons) on both ends of the conduit. devices with balloons on both the distal (internal carotid) and proximal (common carotid) ends of the shunt. The balloons, when inflated independently, act as a stabilization mechanism to maintain the position of the shunt when it is placed within the common and internal carotid arteries. The Pruitt F3-S Polyurethane Carotid Shunt has features to aid the user during shunt insertion and balloon inflation. The inflation path of the proximal (common carotid) balloon is color-coded. Sterile saline is injected from the blue stopcock, through the blue lumen and into the blue common carotid balloon. The Pruitt F3-S Polyurethane Carotid Shunt is not made of natural rubber latex.

    AI/ML Overview

    This document is a 510(k) premarket notification for a medical device (Pruitt F3-S Polyurethane Carotid Shunt) and does not contain information about the performance of an AI/ML device. Therefore, the requested information regarding acceptance criteria and study details for an AI-powered device cannot be extracted.

    The document focuses on demonstrating substantial equivalence to a predicate device, as required for 510(k) submissions. This involves comparing the new device's technological characteristics, indications for use, and performance data (e.g., sterilization, biocompatibility, functional testing) to those of the predicate device. The functional testing described is for the physical device itself (shunts and balloons), not an AI algorithm.

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    K Number
    K143454
    Date Cleared
    2015-08-27

    (267 days)

    Product Code
    Regulation Number
    870.4450
    Reference & Predicate Devices
    Why did this record match?
    Applicant Name (Manufacturer) :

    LeMaitre Vascular, Inc

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

    The Pruitt F3-S Carotid Shunt is indicated for use in carotid endarterectomy as a temporary conduit to allow for blood flow between the common and internal carotid arteries.

    Device Description

    The Pruitt F3-S Carotid Shunt is designed to serve as an artificial passage connecting two blood vessels, allowing blood flow from one vessel to another. This is accomplished by using a clear, plastic, sterile conduit that is held in place by a stabilization technique (balloons) on both ends of the conduit. The Pruitt F3-S Shunts are multi-lumen devices with balloons on both the distal (internal carotid) and proximal (common carotid) ends of the shunt. The balloons, when inflated independently, act as a stabilization mechanism to maintain the position of the shunt when it is placed within the common and internal carotid arteries. The Pruitt F3-S Carotid Shunt has features to aid the user during shunt insertion and balloon inflation. The inflation path of the proximal (common carotid) balloon is color-coded. Sterile saline is injected from the blue stopcock, through the blue lumen and into the blue common carotid balloon.

    AI/ML Overview

    The provided document describes the LeMaitre Vascular Pruitt F3-S Carotid Shunt (K143454) and its substantial equivalence to a predicate device. This is a medical device submission, not a study of an AI algorithm, so many of the requested categories (e.g., sample size for test set, number of experts for ground truth, MRMC study, training set sample size) are not applicable or do not directly translate. However, I can extract information related to the device's performance testing and acceptance criteria as described in the summary.

    Acceptance Criteria and Device Performance for Pruitt F3-S Carotid Shunt

    The document focuses on demonstrating substantial equivalence to a predicate device (Pruitt F3 Carotid Shunt K051067) by comparing technological characteristics and performing functional/safety testing. It does not provide explicit numerical acceptance criteria values or specific performance results for each test in a table format, but rather states that the device "meets the product performance requirements of the device specifications."

    However, based on the "Summary of Product Testing," we can infer the aspects of performance that were evaluated.

    1. Table of Acceptance Criteria and Reported Device Performance

    TestAcceptance Criteria (Inferred from "Meets product performance requirements of the device specifications")Reported Device Performance
    Shunt lumen diameterDevice demonstrates appropriate lumen diameter for its intended function of allowing blood flow between carotid arteries, as per design specifications."meets the product performance requirements of the device specifications"
    Balloon diameterBalloons inflate to the specified diameters to effectively stabilize the shunt within the common and internal carotid arteries, as per design specifications and IFU data."meets the product performance requirements of the device specifications"
    Balloon deflation timeBalloons deflate within an acceptable timeframe to allow for proper removal or adjustment, as per design specifications."meets the product performance requirements of the device specifications"
    Balloon radial forceBalloons exert sufficient radial force to anchor the shunt securely without causing undue trauma, as per design specifications."meets the product performance requirements of the device specifications"
    Kink testThe shunt resists kinking under normal physiological and surgical usage conditions to maintain patency, as per design specifications."meets the product performance requirements of the device specifications"
    Balloon inflation curveThe relationship between inflation volume and balloon diameter is consistent with specifications, guiding users for proper inflation."meets the product performance requirements of the device specifications"
    SterilizationDevice is sterile as defined by ANSI/AAMI/ISO 11135-1:2007."is ethylene oxide (EO) sterilized according to ANSI/AAMI/ISO 11135-1:2007"
    BiocompatibilityMaterials are biocompatible and do not elicit adverse biological responses."The materials used... are identical to those in the predicate device which has established biocompatibility."

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

    The document does not specify a distinct "test set" for a statistical study in the way an AI algorithm might. The testing described is pre-clinical functional and safety testing on the device itself.

    • Sample Size: Not explicitly stated for each test, but typically these tests involve a representative sample of devices.
    • Data Provenance: The tests are performed by the manufacturer, LeMaitre Vascular, Inc., likely at their facilities in Burlington, MA, USA, as part of their internal verification process. The data is prospective, generated specifically for this submission.

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

    This concept is not directly applicable. The "ground truth" for a medical device's functional integrity is established by engineering specifications, recognized industry standards (like ISO 11135-1 for sterilization), and comparison to predicate devices, rather than expert consensus on a diagnostic outcome. The "experts" involved would be the engineers and quality assurance personnel at LeMaitre Vascular.

    4. Adjudication Method for the Test Set

    Not applicable. This type of testing relies on objective measurements against predefined engineering specifications, not subjective interpretation requiring adjudication.

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

    No, an MRMC study was not done. This type of study is relevant for diagnostic devices where human readers interpret patient data (e.g., images) with and without AI assistance. The Pruitt F3-S Carotid Shunt is a physical medical device, not a diagnostic AI algorithm.

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

    Not applicable, as this is not an AI algorithm.

    7. The Type of Ground Truth Used

    The ground truth for this device's performance is based on engineering specifications, design requirements, and established performance characteristics of the predicate device. For biocompatibility, it's the known biocompatibility profile of the materials used in the predicate device. For sterilization, it's compliance with an international standard (ANSI/AAMI/ISO 11135-1:2007).

    8. The Sample Size for the Training Set

    Not applicable, as this is not an AI algorithm requiring a training set.

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

    Not applicable, as this is not an AI algorithm requiring a training set.

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    K Number
    K142660
    Date Cleared
    2014-10-17

    (29 days)

    Product Code
    Regulation Number
    870.4885
    Reference & Predicate Devices
    Why did this record match?
    Applicant Name (Manufacturer) :

    LeMaitre Vascular, Inc.

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

    The LeMills Valvulotomes are intended to cut venous valves.

    Device Description

    The Antegrade LeMills Valvulotome consists of small metal antegrade cutting blade with atraumatic distal edge. The blade is a part of a long stainless steel wire that allows it to be inserted into the venous anatomy. It is held by a plastic handle. It is designed for cutting the venous valves. Once the valves have been rendered ineffectual, the vein can then be utilized as an arterial conduit.

    AI/ML Overview

    The provided document is a 510(k) premarket notification for the Antegrade LeMills Valvulotome, a medical device. This type of document focuses on demonstrating substantial equivalence to a legally marketed predicate device, rather than providing extensive details on novel performance studies and acceptance criteria as would typically be found for AI/ML-based devices or those requiring clinical trials for efficacy.

    Based on the content provided, it is not possible to extract the information requested regarding acceptance criteria and a study proving the device meets them in the context of AI/ML performance, multi-reader multi-case studies, or complex ground truth establishment. This is because the device is a physical surgical tool (a valvulotome) designed to cut venous valves, and its approval relies on bench testing and comparison to existing predicate devices, not on diagnostic performance or AI algorithm validation.

    However, I can extract the available information related to performance testing that was conducted:

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

    The document mentions "Functional/Safety Testing" and "Summary of Product Testing" but does not provide a specific table with acceptance criteria and corresponding reported device performance values. It generally states that the device meets performance requirements.

    Acceptance CriteriaReported Device Performance
    Not explicitly defined in the document for specific numerical thresholds.The verification activities conducted indicate that Antegrade LeMills Valvulotome device meets the product performance requirements of the device specifications and does not raise any additional safety issues.
    Tests listed:
    Dimensional Comparison(Implied to meet specifications)
    Sharpness Test (Effectiveness Test)(Implied to be effective for cutting venous valves)
    Visual Inspection(Implied to meet quality standards)
    Joint Tensile Strength (Pull Test)(Implied to meet required strength)

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

    • Test Set Sample Size: Not specified in the document. The tests appear to be bench-top physical tests performed on the device itself, rather than studies involving patient data.
    • Data Provenance: Not applicable as it's not a data-driven diagnostic or AI device. The tests are for the physical properties and function of the surgical tool.

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

    • Number of Experts/Qualifications: Not applicable. Ground truth for physical device testing is typically established through engineering specifications, material standards, and functional performance benchmarks, not expert consensus on medical images or patient outcomes.

    4. Adjudication method for the test set:

    • Adjudication Method: Not applicable. This concept is relevant for interpreting ambiguous clinical data, not for physical device testing.

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

    • MRMC Study: No. This device is a surgical tool, not a diagnostic imaging device or an AI-assisted diagnostic tool.

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

    • Standalone Performance: Not applicable. There is no algorithm or AI component in this device.

    7. The type of ground truth used:

    • Ground Truth Type: For the physical tests mentioned (Dimensional Comparison, Sharpness Test, Visual Inspection, Joint Tensile Strength), the 'ground truth' would be the engineering specifications and design requirements for the device. For biocompatibility and sterilization, the ground truth is adherence to recognized standards (ISO 10993, ANSI/AAMI/ISO 11135-1:2007).

    8. The sample size for the training set:

    • Training Set Sample Size: 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:

    • Ground Truth Establishment for Training Set: Not applicable.
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    K Number
    K140042
    Date Cleared
    2014-04-10

    (92 days)

    Product Code
    Regulation Number
    870.4885
    Reference & Predicate Devices
    Why did this record match?
    Applicant Name (Manufacturer) :

    LEMAITRE VASCULAR, INC.

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

    It is used for the treatment of vascular disorders, and more particularly for excising or disrupting venous valves.

    Device Description

    The 1.5mm HYDRO Expandable LeMaitre Valvulotome is a self-centering and self-sizing valvulotome device used for cutting vein valves. The centering hoops keep the device centered in the vein. The size of the centering hoops and cutting blades adjust to the internal diameter of the vein as the valvulotome is being drawn through the vessel cutting the valves and rendering them ineffectual. The modifications to the predicate device - Expandable LeMaitre Valvulotome (ELV)- include the addition of hydrophilic coatings and co-extruded sheath to create 1.5mm HYDRO Expandable LeMaitre Valvulotome. The hydrophilic coatings provide increased lubricity and allow the device to navigating veins easier.

    AI/ML Overview

    The provided document describes a 510(k) submission for the 1.5mm HYDRO Expandable LeMaitre Valvulotome. This is a medical device, and the submission focuses on demonstrating "substantial equivalence" to a predicate device, rather than proving performance against specific acceptance criteria in the way a new diagnostic or AI-driven device often does.

    Therefore, the structure of the response will be tailored to the information provided in a 510(k) summary for a physical medical device. Many of the requested categories (like sample size for test sets, number of experts for ground truth, MRMC studies, standalone performance of an algorithm, training set details) are not applicable to this type of submission because it's not a diagnostic or AI device.

    Here's an analysis based on the provided text:

    1. Table of Acceptance Criteria and Reported Device Performance

    For this device, the "acceptance criteria" are implied by meeting product performance specifications and not raising additional safety issues, as compared to its predicate device. Specific quantitative acceptance criteria with corresponding performance values are generally not provided in this type of 510(k) summary for functional device modifications. The tests performed are primarily engineering and bench tests, with a cadaver study, to show that the modified device functions similarly and safely.

    Acceptance Criterion (Implied)Reported Device Performance
    Meet product performance specifications (general)"meets the product performance specifications"
    Modifications do not raise any additional safety issues"modifications do not raise any additional safety issues"
    Achieve intended use (excising/disrupting venous valves)Demonstrated through Cadaver Study, functional testing.
    Biocompatibility for blood contact"is biocompatible"
    Sterilization validated"is validated for ethylene oxide (EO) sterilization"
    Maintain fundamental scientific technology as predicate"maintains the same intended use and fundamental scientific technology as the predicate device(s)"
    Dimensional accuracy"Dimensional Verification" completed
    Durability/Reliability (e.g., fatigue)"Fatigue Testing" completed
    Fluid dynamics/Lubricity (hydrophilic coating benefit)"Flushability" completed
    Ease of use (insertion/removal)"Force to insert and remove device" completed
    Mechanism function (opening/closing)"Force to open and close device" completed
    Navigability in tortuous anatomy"Tortuous Sheathing" completed
    Functionality in a biological environment (cutting valves)"Cadaver Study" completed

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

    • Test Set Sample Size: Not explicitly stated for specific tests (e.g., how many devices for dimensional, fatigue, force tests). For the Cadaver Study, the sample size is not specified.
    • Data Provenance: Not specified. Standard practice for bench testing is typically done in a lab environment. Cadaver studies are usually conducted by the manufacturer or a contract research organization (CRO) in a controlled setting. No country of origin for the data is mentioned. The study is prospective for the device's performance given the modifications.

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

    • This concept is not applicable here as this is a physical device, not an AI or diagnostic device that requires expert-established ground truth on a dataset. The "ground truth" for a medical device's performance is typically established through engineering standards, functional tests, and in vivo/cadaver studies where success is defined by the device performing its intended mechanical function.
    • For the cadaver study, it's implied that medical professionals (surgeons or similar) would have conducted or observed the study to assess functionality, but their number and specific qualifications are not detailed.

    4. Adjudication method for the test set

    • Not applicable in the context of an AI/diagnostic device's performance evaluation. For engineering tests, results are typically assessed against pre-defined engineering specifications. For the Cadaver Study, the "adjudication" would be whether the device successfully performed its function (cutting valves) and navigated the anatomy, likely assessed by the operating physician(s).

    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 instrument, not an AI system.

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

    • Not applicable. This is a medical instrument, not an AI algorithm.

    7. The type of ground truth used

    • The "ground truth" for this device is based on functional performance metrics derived from engineering tests (e.g., force measurements, dimension checks, fatigue cycles) and observations from the cadaver study confirming the device's ability to navigate and effectively cut venous valves in a simulated biological environment. There is also biocompatibility testing against ISO 10993 guidelines.

    8. The sample size for the training set

    • Not applicable. This device does not use a "training set" in the context of machine learning or AI.

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

    • Not applicable.
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    K Number
    K133026
    Date Cleared
    2013-12-31

    (96 days)

    Product Code
    Regulation Number
    870.1250
    Reference & Predicate Devices
    Why did this record match?
    Applicant Name (Manufacturer) :

    LEMAITRE VASCULAR, INC.

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

    The UnBalloon Non-Occlusive Modeling Catheter is intended to assist in the modeling of self-expanding endoprostheses in large diameter vessels.

    Device Description

    The UnBalloon Non-Occlusive Catheter is a silicone surface coated (medical grade) modeling Catheter with an expandable Nitinol mesh in a retractable sheath. The Nitinol mesh design allows for expansion without occluding blood flow. The Nitinol mesh and radiopaque markers are highly visible under fluoroscopy and assist in the positioning of the device. The inner lumen allows for a 0.035 or 0.038 inch guidewire for over-the-wire access. Side ports and clear handle/luer allow the device and guidewire lumen to be flushed. The blue handle allows the device to be sheathed/unsheathed while the clear handle/luer controls the expansion of the Nitinol mesh. This submission modifies the current UnBalloon Non-Occlusive Modeline Catheter to be able to deliver higher radial outward force in order to improve stent graft modeling effectiveness (i.e., apposition of the stent graft with the vessel lumen). this device modification increases the outer diameter of the thoracic models from 14 Fr to 16 Fr.

    AI/ML Overview

    Here's a breakdown of the acceptance criteria and study information for the UnBalloon Non-Occlusion Modeling Catheter, based on the provided text:

    Important Note: The provided text is a 510(k) summary and FDA clearance letter for a medical device. This document focuses on demonstrating substantial equivalence to a predicate device, rather than providing a detailed clinical trial or AI model validation study. Therefore, many of the typical acceptance criteria and study details for AI/software-as-a-medical-device (SaMD) are not applicable or not present in this type of submission. The device described is a physical catheter, not an AI model.


    Acceptance Criteria and Reported Device Performance

    Given that this is a physical medical device and not an AI/software device, the "acceptance criteria" are related to its physical performance, safety, and functional equivalence to a predicate device. There are no explicit, quantifiable acceptance criteria presented in the format often seen for AI model performance (e.g., sensitivity, specificity thresholds). Instead, the document summarizes various tests performed to ensure the device meets its specifications and is substantially equivalent.

    Acceptance Criteria CategoryReported Device Performance
    Functional/Safety PerformanceVerification activities conducted on the subject device demonstrated it "meets the product performance requirements of the device specifications and the modifications presented do not raise additional safety issues." Specific tests performed include: dimensional analysis, apposition length, radial outward force, freedom from leakage, fatigue and simulated use, force at break (bond strength), and interaction with stent graft materials.
    BiocompatibilityAll blood contact portions of the device passed biocompatibility testing according to ISO 10993 guidelines, establishing it as "biocompatible." No new materials were introduced, so existing biocompatibility tests remain valid.
    SterilizationDevice is validated for ethylene oxide (EO) sterilization according to ANSI/AAMI/ISO 11135-1:2007. The sterilization process remains unchanged from the predicate.
    Substantial Equivalence to Predicate DeviceThe modified UnBalloon is "substantially equivalent to the predicate UnBalloon catheter based on the same intended use and fundamental scientific technological characteristics."
    Stent Graft Modeling Effectiveness (Modified)The modification (increased outer diameter from 14 Fr to 16 Fr for thoracic models) aims "to be able to deliver higher radial outward force in order to improve stent graft modeling effectiveness (i.e., apposition of the stent graft with the vessel lumen)." Specific performance metrics for this improvement are not detailed beyond the aim.

    Study Details (Applicable to a Physical Medical Device Submission)

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

      • The document mentions "Animal testing (ovine study)" as one of the completed tests. However, the specific sample size (number of animals) for this study is not provided.
      • Data provenance for the animal study is "ovine" (sheep), which is a common animal model for cardiovascular devices. It would be considered prospective for the purposes of the animal study itself.
      • For the other listed tests (e.g., dimensional analysis, fatigue), these are typically in-vitro (benchtop) tests, and the "sample size" would refer to the number of devices or components tested. This information is not specified in the summary.
    2. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:

      • This question is not applicable as the device is a physical catheter, not an AI/software device that generates outputs requiring expert interpretation to establish ground truth (e.g., image classifications). The "ground truth" for a physical device is its measurable physical properties and performance in specified tests.
    3. Adjudication method (e.g., 2+1, 3+1, none) for the test set:

      • This is not applicable to a physical device submission of this nature. Adjudication methods are typically used for establishing ground truth in human-AI studies or for resolving discrepancies in expert interpretations, neither of which is relevant here.
    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:

      • This is not applicable. This device is a physical catheter, not an AI assistance tool for human readers. No MRMC study was performed.
    5. If a standalone (i.e., algorithm only without human-in-the-loop performance) was done:

      • This is not applicable. This device is a physical catheter, not an algorithm.
    6. The type of ground truth used (expert consensus, pathology, outcomes data, etc.):

      • For this physical medical device, the "ground truth" is established by:
        • Physical measurements and engineering specifications: For tests like dimensional analysis, radial outward force, apposition length, and force at break.
        • Standardized test methods/protocols: For tests like freedom from leakage, fatigue and simulated use, interaction with stent graft materials, sterilization, and biocompatibility.
        • Physiological observation/measurement in animal models: For the ovine animal study.
    7. The sample size for the training set:

      • This is not applicable. There is no "training set" as this is a physical device, not a machine learning model.
    8. How the ground truth for the training set was established:

      • This is not applicable for the same reason as above.
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    K Number
    K132022
    Date Cleared
    2013-11-06

    (128 days)

    Product Code
    Regulation Number
    870.4450
    Reference & Predicate Devices
    Why did this record match?
    Applicant Name (Manufacturer) :

    LEMAITRE VASCULAR, INC.

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

    The LeMaitre 8F Occlusion Catheter is indicated for temporary vessel occlusion.

    Device Description

    The 8F Occlusion Catheters is offered in two balloon sizes; 28 mm or 45mm. It is a single lumen catheter with a latex balloon specifically designed and sized for use in the outlined general procedures. The single lumen (inflation lumen indicated by the white stopcock) is used for balloon inflation. The stop-cock is to maintain balloon inflation level throughout the procedure. The device has radiopaque marker bands at the proximal and distal ends of the balloon to enhance visibility of the balloon location when used under fluoroscopy.

    AI/ML Overview

    The provided text describes a medical device, the LeMaitre 8F Occlusion Catheter, and its 510(k) summary, which focuses on demonstrating substantial equivalence to a predicate device. However, it does not contain information about a study that establishes acceptance criteria and then proves the device meets those criteria, especially in the context of an AI/algorithm-driven device.

    The document outlines functional and safety testing, but these tests are for the physical catheter's performance (e.g., inflation volume, burst volume) rather than for an AI algorithm's diagnostic or predictive capabilities.

    Therefore, I cannot fulfill your request for the following information based on the provided text, as it describes a physical medical device clearance, not an AI/algorithm-based one:

    1. A table of acceptance criteria and the reported device performance: The document only lists types of tests, not specific acceptance criteria (e.g., a minimum inflation pressure value) or detailed performance results that would be typically found for an AI system (e.g., sensitivity, specificity, AUC).
    2. Sample size used for the test set and the data provenance: No test set information for an algorithm is provided.
    3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts: Not applicable, as there's no algorithm test set.
    4. Adjudication method for the test set: Not applicable.
    5. If a multi-reader multi-case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance: Not applicable.
    6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done: Not applicable.
    7. The type of ground truth used (expert consensus, pathology, outcomes data, etc): Not applicable.
    8. The sample size for the training set: Not applicable.
    9. How the ground truth for the training set was established: Not applicable.

    The document focuses on:

    • Device Description: Physical characteristics of the LeMaitre 8F Occlusion Catheter.
    • Intended Use: Temporary vessel occlusion.
    • Predicate Device: Fogarty Occlusion Catheter (K093911).
    • Substantial Equivalence: Claiming similar intended use and fundamental scientific technology as the predicate.
    • Functional/Safety Testing: Mentioning tests like "Volume Required to Inflate Balloon to IFU Indicated Diameter," "Inflation Pressure," "Radial Force," "Contact Area," "Inflation Time," "Deflation Time," and "Burst Volume." These are physical device performance tests.
    • Sterilization and Biocompatibility: Confirming compliance with relevant standards.

    To summarize, the provided text does not contain the type of AI/algorithm performance study details you are asking for.

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    K Number
    K132047
    Date Cleared
    2013-11-05

    (126 days)

    Product Code
    Regulation Number
    870.4885
    Reference & Predicate Devices
    N/A
    Why did this record match?
    Applicant Name (Manufacturer) :

    LEMAITRE VASCULAR, INC.

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

    The LeMills Valvulotome is intended to cut venous valves.

    Device Description

    The LeMills Valvulotome consists of small metal retrograde cutting blade with atraumatic distal edge. The blade is a part of a long section of wire that allows it to be inserted into the venous anatomy. It is held by a plastic handle. It is designed for cutting the venous valves. Once the valves have been rendered ineffectual, the vein can then be utilized as an arterial conduit.

    AI/ML Overview

    The LeMills Valvulotome is a medical device designed to cut venous valves. The provided text is a 510(k) summary for its clearance.

    Here's an analysis of the provided information, specifically addressing the requested points:

    K132047: LeMills Valvulotome

    1. Table of Acceptance Criteria and Reported Device Performance:

    The provided document references "product performance requirements of the device specifications" and "Summary of Product Testing," but it does not explicitly list quantitative acceptance criteria or detailed reported performance values. Instead, it focuses on demonstrating substantial equivalence to a pre-amendment predicate device (Mills Valvulotome) through functional and safety testing.

    Acceptance CriteriaReported Device Performance
    Functional/Safety Testing: Device meets product performance requirements of device specifications.The device meets the product performance requirements of the device specifications and does not raise any additional safety issues.
    Sterilization: Validated for ethylene oxide (EO) sterilization.Validated for ethylene oxide (EO) sterilization according to ANSVAAMI/ISO 11135-1:2007.
    Biocompatibility: Materials are biocompatible for externally communicating device with limited contact duration (
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