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The Symphony Thrombectomy System is intended for:

• The non-surgical removal of fresh, soft emboli and thrombi from blood vessels.
• Injection, infusion, and/or aspiration of contrast media and other fluids into or from a blood vessel.

The Symphony Thrombectomy System is intended for use in the peripheral vasculature and for the treatment of pulmonary embolism.

The Symphony 16F 82cm Thrombectomy System is intended for:

• The non-surgical removal of fresh, soft emboli and thrombi from blood vessels.
• Injection, infusion, and/or aspiration of contrast media and other fluids into or from a blood vessel.

The Symphony 16F 82cm Thrombectomy System is intended for use in the peripheral vasculature. It is not for use in the pulmonary vasculature.

The Symphony™ Thrombectomy System is comprised of the following devices:

• 24F Symphony Catheter
• 24F Symphony Standard Dilator
• 24F Symphony Advance™ Long Dilator
• 24F Symphony ProHelix™
• 16F Symphony Catheter
• 16F Symphony Dilator
• 16F Symphony ProHelix™
• Symphony Clot Container
• TRUVIC Generator
• TRUVIC Canister
• TRUVIC Tubeset

The Symphony™ 16F 82cm Thrombectomy System is comprised of the following devices:

• 16F 82cm Symphony Catheter
• 16F 82cm Symphony Length Matched Dilator
• Symphony Clot Container
• TRUVIC Generator
• TRUVIC Canister
• TRUVIC Tubeset

Both Systems are designed to remove thrombus/embolus (also referred to as 'clot') from the peripheral vasculature using controlled aspiration. The Symphony Catheters and the Symphony 16F 82cm Catheter target aspiration from the TRUVIC Generator directly to the thrombus. The Symphony ProHelix may be used to facilitate aspiration and removal of the thrombus through the 16F Symphony Catheter or through the 24F Symphony Catheter. The Symphony ProHelix is not used with the 16F 82cm Symphony Catheter.

The Symphony Catheters and Symphony Dilators are introduced through a vascular access sheath into the peripheral vasculature and guided over a guidewire to the site of the thrombus in the peripheral vasculature or pulmonary anatomy. The 16F 82cm Catheter and compatible Dilator are introduced through a vascular access sheath into the peripheral vasculature and guided over a guidewire to the site of thrombus in the peripheral vasculature. The Symphony 16F 82cm Catheter and compatible Dilator are not intended for use in the pulmonary anatomy. Both the Symphony Catheters and the Symphony 16F 82cm Catheter are used with the TRUVIC Generator, connected using the TRUVIC Tubeset and the TRUVIC Canister, to aspirate thrombus.

As needed, the Symphony ProHelix may be introduced through a Symphony 16F Catheter or a Symphony 24F Catheter to assist with thrombus removal. The Symphony ProHelix is not used with the 16F 82cm Symphony Catheter. The Symphony ProHelix is manually advanced through the Symphony Catheter over a guidewire, remaining inside the Symphony Catheter during the procedure. During aspiration, the handle on the proximal end of the Symphony ProHelix is manually rotated, which rotates the tip of the Symphony ProHelix to facilitate thrombus removal through the Symphony Catheter. The tips of the devices are visible under fluoroscopy.

Here's a breakdown of the acceptance criteria and study details for the Imperative Care, Inc. Symphony™ Thrombectomy System, specifically for the expanded pulmonary embolism indication, based on the provided 510(k) clearance letter:

1. Table of Acceptance Criteria and Reported Device Performance

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The Aventus Thrombectomy System is indicated for:

• The non-surgical removal of emboli and thrombi from blood vessels.
• Injection, infusion, and/or aspiration of contrast media and other fluids into or from a blood vessel.

The Aventus Thrombectomy System is intended for use in the peripheral vasculature and for the treatment of pulmonary embolism.

The Aventus Thrombectomy System is a catheter-based manual aspiration system designed for the minimally invasive removal of emboli and thrombi from blood vessels, infusing fluids, and is intended to be used in the peripheral vasculature and for the treatment of pulmonary embolism. The System is comprised of the following major components:

• Aventus Thrombectomy Catheter
• Clot Management System consisting of:
  • Aspiration Syringe
  • Clot Canister

The System is compatible with a standard 24-French (24F) introducer sheath, 4F Navigation Catheters and is to be used with 0.035" guidewires. The System is provided sterile and is intended for single use only.

The Aventus Thrombectomy Catheter includes an atraumatic radiopaque Distal Tip with embedded sensors, and an angled aspiration orifice for directional aspiration and navigation without a dilator. The Catheter Handle assists the clinician in navigating within the vasculature and includes a Sensing Indicator and houses the Sensing electronics. The Aspiration Catheter shaft incorporates a metallic reinforcement layer made of stainless steel, an inner liner and polymeric outer jacket having variable stiffness.

The System is provided with a 60-cc dual action manual syringe which allows for directional flow control and directs aspirated blood and clot into the Clot Canister.

The provided text describes the regulatory clearance of a medical device, the Aventus Thrombectomy System, and outlines the performance data submitted to support its substantial equivalence. However, the document does NOT contain information about an AI/Software component that would require "acceptance criteria" based on metrics like sensitivity, specificity, accuracy, or an MRMC study.

The software testing mentioned refers to:

• "Software documentation was leveraged from the reference device as recommended by FDA Guidance: Content of Premarket Submissions for Device Software Functions, issued June 14, 2023." This indicates that the software functions are likely related to guiding the device's operation, sensing, or control rather than an AI-driven diagnostic or interpretative function. There is no mention of AI, machine learning, or algorithms for image analysis or diagnostic support.

Therefore, I cannot provide the requested information about acceptance criteria, test set details (sample size, provenance, expert ground truth, adjudication), MRMC studies, standalone performance, or training set details because the provided document does not indicate the presence of such an AI/ML component.

The performance data listed pertains to the physical device itself (biocompatibility, sterilization, packaging, electrical safety, bench testing, animal studies, and a clinical trial on the device's safety and effectiveness in treating pulmonary embolism).

If the device did indeed have an AI/ML component, the type of information you requested (acceptance criteria, ground truth establishment, MRMC study, etc.) would be critical for its regulatory clearance. Based on the provided text, the Aventus Thrombectomy System appears to be a mechanical thrombectomy device with some electronic/software components for its control and sensing, but not for AI-assisted image analysis or diagnostic capabilities.

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The Excipio LV Prime Thrombectomy Device is indicated for the nonsurgical removal of emboli and thrombi from peripheral blood vessels.

The Excipio LV Prime Thrombectomy Device consists of a Thrombectomy Catheter to mechanically displace thrombus when used with an aspiration catheter. The device will be sold as a sterile, single use device.

The Thrombectomy Catheter is a mechanical thrombus displacement device with a nitinol braided component (basket) at the distal end that can be opened and closed via an activation wire that attaches to the distal end of the braid and attaches to a proximal handle. The operator can open the braided component to a diameter that best matches the target vessel (6-16 mm in diameter). The thickness of the basket wires enhances the radiopacity to facilitate visualization under fluoroscopy without the need for additional radiopaque markers.

Let's break down the information regarding the acceptance criteria and study for the Excipio LV Prime Thrombectomy Device, based on the provided FDA 510(k) clearance letter.

It's important to note that this document is a 510(k) clearance letter, which focuses on demonstrating substantial equivalence to a predicate device. Therefore, the "study" described here is primarily a non-clinical bench testing campaign aimed at proving the new device performs similarly and meets a defined set of engineering and performance specifications. There is no clinical study involving human (or animal) subjects described in this document for the Excipio LV Prime Thrombectomy Device. Thus, concepts like "human readers," "AI assistance," "effect size," or "ground truth for training/test set" in the context of clinical outcomes or diagnostic accuracy are not applicable to this type of device and submission.

Acceptance Criteria and Reported Device Performance

The document describes non-clinical laboratory testing performed to support the substantial equivalence. The acceptance criteria for these tests are implicitly that the device met the criteria and functioned as intended, with a performance profile similar to predicate devices. Specific quantitative acceptance criteria or detailed reported performance values are not explicitly stated in this summary. Instead, it broadly states that the device "met all acceptance criteria" and "functioned as intended."

Table of Acceptance Criteria and Reported Device Performance:

Study Details: Non-Clinical Bench Testing

Since this is a thrombectomy device and the submission is for 510(k) clearance based on substantial equivalence, the "study" referred to is a series of in vitro bench tests.

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

   • The document does not explicitly state the specific number of units tested for each non-clinical test (e.g., how many devices were subjected to kink resistance or tensile testing). This level of detail is typically found in the full 510(k) submission, not the summary.
   • Data Provenance: All data is from in vitro bench testing conducted by the manufacturer, Contego Medical, Inc. The country of origin for this testing is not specified, but it would typically be conducted at the manufacturer's facilities or a contracted testing lab. This is by definition retrospective in the sense that the testing is performed before submission for clearance.

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

   • Not Applicable. For non-clinical bench testing of a medical device, "ground truth" is established by engineering specifications, validated test methods, and industry standards (e.g., ISO standards). There are no "experts" establishing a clinical judgment ground truth in this context. The "experts" involved would be the design engineers, quality engineers, and test technicians who define the test protocols and interpret the results against the defined acceptance criteria.

3. Adjudication Method for the Test Set:

   • None Applicable. Adjudication methods like "2+1" or "3+1" are used in clinical studies or image interpretation studies where multiple human readers' opinions need to be reconciled to establish a ground truth. For bench testing, results are typically objective measurements compared directly against predetermined pass/fail criteria.

4. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study:

   • No, not done. An MRMC study is relevant to diagnostic imaging devices or other technologies where human interpretation is involved. This device is a mechanical thrombectomy device; its performance is evaluated by its physical characteristics and efficacy in removing thrombus in a lab setting, not by aiding human readers in diagnosis.

5. Standalone (Algorithm Only Without Human-in-the-Loop Performance):

   • Not Applicable. This device is an invasive medical device, not a software algorithm. Its use inherently involves a human operator (a clinician) and is not "standalone" in the sense of an unassisted algorithm making decisions.

6. Type of Ground Truth Used:

   • For the non-clinical testing, the "ground truth" is defined by:
     • Engineering specifications and design requirements: For dimensional, kink resistance, torsional strength, tensile, radial force, and corrosion testing.
     • Validated test methods and industry standards (e.g., ISO 10993-1): For biocompatibility, simulated use, and clot removal testing.
     • Manufacturer's internal quality standards.

7. Sample Size for the Training Set:

   • Not Applicable. The concept of a "training set" applies to machine learning algorithms. This device is a physical, mechanical medical device, not an AI/ML system.

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

   • Not Applicable. As above, there is no training set for this type of device.

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The Liberant Thrombectomy System is indicated for the removal of fresh, soft emboli or thrombi from the vessels of the peripheral arterial and venous systems.

The Liberant Thrombectomy System consists of the Liberant Thrombectomy Set (catheter, clotbuster, dilator, aspiration tubing and hemostasis valve), Liberant Blood Conservation Unit (BCU), Riptide Aspiration Pump and Riptide Collection Canister with intermediate tubing. The Liberant Thrombectomy Set is single use and provided sterile.

The Liberant BCU and Riptide Pump are provided separately from the Liberant Thrombectomy Set as non-sterile capital units. The single use, non-sterile Riptide Collection Canister is provided separately to the pump.

The provided FDA 510(k) clearance letter pertains to a thrombectomy system, which is a physical medical device (catheter-based system) used for removing blood clots. It is not an AI/ML device. Therefore, the request for acceptance criteria and study details relevant to AI/ML devices, such as sample size for test/training sets, data provenance, expert ground truth, adjudication methods, MRMC studies, and standalone performance, cannot be answered from the provided text.

The document focuses on the substantial equivalence of the Liberant Thrombectomy System to a predicate device (Penumbra Indigo Aspiration System) based on:

• Indications for Use: Both systems are indicated for the removal of fresh, soft emboli or thrombi from peripheral arterial and venous systems.
• Operating Principle/Technological Design: Both utilize continuous aspiration and fragmentation tools (clotbuster/separator).
• Catheter Specifications: Similar sizes, lengths, and guidewire compatibility.
• Non-Clinical Data: Extensive performance, biocompatibility, shelf-life, sterilization, packaging, software validation (for the pump control), and electrical/EMC testing were performed. This type of "software validation" typically refers to embedded software controlling the pump mechanics, not an AI/ML diagnostic or predictive algorithm.

Therefore, I cannot provide the requested information regarding AI/ML device acceptance criteria and study details because the provided document describes a non-AI medical device.

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The Symphony Thrombectomy System is intended for:

• The non-surgical removal of fresh, soft emboli and thrombi from blood vessels.
• Injection, infusion, and/or aspiration of contrast media and other fluids into or from a blood vessel.

The Symphony Thrombectomy System is intended for use in the peripheral vasculature. It is not for use in the pulmonary vasculature.

The Symphony 16F 82cm Thrombectomy System is intended for:

• The non-surgical removal of fresh, soft emboli and thrombi from blood vessels.
• Injection, infusion, and/or aspiration of contrast media and other fluids into or from a blood vessel.

The Symphony 16F 82cm Thrombectomy System is intended for use in the peripheral vasculature. It is not for use in the pulmonary vasculature.

The Symphony™ Thrombectomy System is comprised of several devices:

• 24F Symphony Catheter
• 24F Symphony Standard Dilator
• 24F Symphony Advance™ Long Dilator
• 24F Symphony ProHelix™
• 16F Symphony Catheter
• 16F Symphony Dilator
• 16F Symphony ProHelix™
• Symphony Clot Container
• TRUVIC Generator
• TRUVIC Canister
• TRUVIC Tubeset

The Symphony™ 16F 82cm Thrombectomy System is comprised of several devices:

• 16F 82cm Symphony Catheter
• 16F 82cm Symphony Length Matched Dilator
• Symphony Clot Container
• TRUVIC Generator
• TRUVIC Canister
• TRUVIC Tubeset

Both Systems are designed to remove thrombus/embolus (also referred to as 'clot') from the peripheral vasculature using controlled aspiration. The Symphony Catheter targets aspiration from the TRUVIC Generator directly to the thrombus. The Symphony ProHelix may be used to facilitate aspiration and removal of the thrombus through the 16F Symphony Catheter or through the 24F Symphony Catheter. The Symphony ProHelix is not used with the 16F 82cm Symphony Catheter.

The Symphony Catheters and Symphony Dilators are introduced through a vascular access sheath into the peripheral vasculature and guided over a guidewire to the site of the thrombus. The Symphony Catheter is used with the TRUVIC Generator, connected using the TRUVIC Tubeset and the TRUVIC Canister, to aspirate thrombus.
As needed, the Symphony ProHelix may be introduced through a Symphony 16F Catheter or a Symphony 24F Catheter to assist with thrombus removal. The Symphony ProHelix is not used with the 16F 82cm Symphony Catheter. The Symphony ProHelix is manually advanced through the Symphony Catheter over a guidewire, remaining inside the Symphony Catheter during the procedure. During aspiration, the handle on the proximal end of the Symphony ProHelix is manually rotated, which rotates the tip of the Symphony ProHelix to facilitate thrombus removal through the Symphony Catheter. The tips of the devices are visible under fluoroscopy.

The provided 510(k) clearance letter details the substantial equivalence of the Symphony™ Thrombectomy System and Symphony™ 16F 82cm Thrombectomy System to a predicate device. However, the document does not describe a study involving "acceptance criteria" and "reported device performance" in the context of an AI/human reader study or a standalone algorithm study looking at diagnostic performance metrics.

Instead, the document focuses on the technical and physical performance characteristics of a medical device (a thrombectomy system) designed for the non-surgical removal of emboli and thrombi. The "acceptance criteria" mentioned in the document refer to engineering and material performance specifications rather than diagnostic accuracy, sensitivity, or specificity.

Therefore, I cannot fulfill all parts of your request as the provided text does not contain information about:

1. A table of acceptance criteria and reported device performance related to diagnostic accuracy or clinical outcomes assessed through a study with a test set of data (e.g., sensitivity, specificity, accuracy for an AI system). The "acceptance criteria" listed are for bench and laboratory tests (e.g., Kink/Bend Verification, Tensile and Torque Strength Verification).
2. Sample size used for the test set and data provenance: There is no mention of a "test set" in the context of diagnostic data. The "testing" refers to physical device performance.
3. Number of experts used to establish ground truth and their qualifications: Ground truth in this context would typically refer to a diagnosis or an outcome for a dataset. The document refers to engineering verification of device function.
4. Adjudication method for the test set: Not applicable based on the content.
5. Multi-reader multi-case (MRMC) comparative effectiveness study: Not mentioned. The approval is for a physical medical device, not a diagnostic AI tool.
6. Standalone (algorithm only) performance: Not applicable.
7. Type of ground truth used: Not applicable in the diagnostic sense. The "ground truth" for these tests are engineering specifications.
8. Sample size for the training set: Not applicable, as this is not an AI/machine learning device requiring a training set in the conventional sense.
9. How ground truth for the training set was established: Not applicable.

Summary of "Acceptance Criteria" and "Study" as described in the provided 510(k) (focused on device function, not diagnostic performance):

The "studies" conducted were a series of bench and laboratory (in-vitro) tests to demonstrate the physical and functional performance of the device and its substantial equivalence to a predicate device.

Table: Acceptance Criteria and Reported Device Performance (from the document's perspective)

Additional Information Extracted from the Document:

• Sample size for the test set and the data provenance: Not applicable in the context of diagnostic data. The "tests" mentioned are engineering and material tests, likely involving a number of units of the device. There is no mention of patient data (retrospective/prospective, country of origin).
• Number of experts used to establish the ground truth for the test set and the qualifications of those experts: Not applicable. The "ground truth" for these tests are established engineering and material standards and specifications. Expertise would be in engineering and testing methodologies, not clinical diagnosis.
• Adjudication method for the test set: Not applicable.
• If a multi reader multi case (MRMC) comparative effectiveness study was done: No.
• If a standalone (i.e. algorithm only without human-in-the-loop performance) was done: No.
• The type of ground truth used: Engineering specifications and ISO/ASTM standards for material and device performance.
• The sample size for the training set: Not applicable; this is not an AI/ML device.
• How the ground truth for the training set was established: Not applicable.

In essence, the provided document is a 510(k) clearance for a physical medical device (a thrombectomy system), not a diagnostic algorithm or AI product. Therefore, the "acceptance criteria" and "studies" refer to the physical and functional performance of the device itself, rather than its performance in interpreting medical data or assisting human readers.

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The InThrill™ Thrombectomy System is indicated for:

• The non-surgical removal of emboli and thrombi from blood vessels, including arteriovenous fistulae and arteriovenous grafts for dialysis access, and synthetic grafts.
• Injection, infusion, and/or aspiration of contrast media and other fluids into or from a blood vessel/graft.

The InThrill™ Sheath is indicated for use as a conduit for the insertion of endovascular devices into the peripheral vasculature while minimizing blood loss associated with such insertions.

The InThrill™ Thrombectomy System is intended for use in the peripheral vasculature.

The InThrill™ Thrombectomy System is not intended for use in deep vein thrombosis (DVT) treatment.

The InThrill™ Thrombectomy System is a single-use, over-the-wire, catheter-based system for the minimally invasive treatment of thromboemboli in the peripheral vasculature, including arteriovenous fistulae and arteriovenous grafts for dialysis access, and synthetic grafts. The system comprises two main components packaged separately:

• InThrill Sheath (8 Fr)
• InThrill Thrombectomy Catheter (8 Fr)

The InThrill Sheath is placed in the target vessel, and, after its funnel is expanded, the InThrill Catheter is inserted through the sheath and advanced past the thrombus. The InThrill Catheter coring element is deployed, providing wall-to-wall contact to engage the clot, and is then retracted into the InThrill Sheath to capture the targeted thrombus. Additional clot may be removed by aspiration through the sheath with a syringe (not provided). After the procedure is complete, the InThrill Catheter and InThrill Sheath are removed from the patient.

I'm sorry, but based on the provided FDA 510(k) clearance letter for the InThrill™ Thrombectomy System, there is no information available about acceptance criteria and a study that proves the device meets specific performance criteria for AI/ML-based medical devices.

This document describes a medical device (thrombectomy system) which is a physical, mechanical device, not an AI/ML-based software device. The entire document focuses on the substantial equivalence of the InThrill™ Thrombectomy System to a predicate device, based on non-clinical performance and biocompatibility testing.

Therefore, I cannot fulfill your request for the specific points related to AI/ML device testing, such as:

• A table of acceptance criteria and reported device performance related to AI/ML metrics.
• Sample size and data provenance for an AI/ML test set.
• Number of experts and their qualifications for AI/ML ground truth.
• Adjudication method for AI/ML test set.
• MRMC comparative effectiveness study for AI assistance.
• Standalone (algorithm only) performance for AI.
• Type of ground truth used for AI/ML.
• Sample size for training set and how ground truth was established for AI/ML.

The "Performance Tests" section in the document refers to engineering and functional performance tests for the physical device (e.g., tensile strength, luer connections, clot burden removal efficacy of the mechanical device), not the performance of an AI algorithm in interpreting medical images or data.

If you have a document pertaining to an AI/ML medical device, I would be happy to analyze it for the criteria you've outlined.

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The Aventus Thrombectomy System is indicated for:
• The non-surgical removal of emboli and thrombi from blood vessels.
• Injection, infusion, and/or aspiration of contrast media and other fluids into or from a blood vessel.
The Aventus Thrombectomy System is intended for use in the peripheral vasculature.

The Aventus Thrombectomy System is a catheter-based manual aspiration system designed for minimally invasive removal of emboli and thrombi from the peripheral vasculature and/or infusing fluids into the peripheral vasculature. The System is comprised of the following major components:

• Aventus Thrombectomy Catheter .
• Clot Management System consisting of:
• . Aspiration Syringe
• . Clot Canister
  The System is compatible with standard introducer sheaths (24F or 16F). 4F or 5F Navigation Catheters (based on Aventus Thrombectomy Catheter model), and is to be used with 0.035" guidewires. The System is provided sterile and is intended for single use only.
  The Aventus Thrombectomy Catheter includes an atraumatic radiopaque Distal Tip with embedded sensors, and an angled aspiration orifice for directional aspiration and navigation without a dilator. The Catheter Handle assists the clinician in navigating within the vasculature and includes a Sensing Indicator and houses the Sensing electronics.
  The Aspiration Catheter shaft incorporates a metallic reinforcement layer made of stainless steel, an inner liner and polymeric outer jacket having variable stiffness.
  The System is provided with a 60-cc dual action manual syringe which allows for directional flow control and directs aspirated blood and clot into the Clot Canister.

This document is a 510(k) Premarket Notification from the FDA regarding the Aventus Thrombectomy System. It describes the device, its intended use, and substantial equivalence to a predicate device.

However, the provided text does not contain any information about an AI/software component that would require a study proving the device meets acceptance criteria related to AI performance, or any details about a clinical study involving human readers or ground truth establishment. The mentions of "software" and "refine the algorithm" are general and don't provide specifics on AI acceptance criteria or performance studies.

Therefore, I cannot fulfill your request for detailed information about acceptance criteria for an AI component, sample sizes for test sets, expert involvement in ground truth, MRMC studies, standalone performance, or training set details. This document primarily focuses on the physical device (catheter-based thrombectomy system) and its equivalence to a prior version, primarily through bench, biocompatibility, sterilization, packaging, and electrical safety testing.

The relevant information regarding software is:

• Software Testing: "Software documentation and testing was updated from the predicate device as recommended by FDA Guidance: Content of Premarket Submissions for Device Software Functions, issued June 14, 2023."
• Device Modification: "Update of the device software to refine the algorithm and account for the reduction in diameter."

These statements indicate that software was updated and tested according to FDA guidance, but they do not provide specific performance metrics, acceptance criteria for an AI algorithm (e.g., sensitivity, specificity, AUC), or details of a study setup that would validate such metrics. The "algorithm" mentioned likely refers to control or sensing algorithms for the catheter, not a diagnostic or prognostic AI.

In summary, the provided document does not contain the information needed to address your questions regarding AI acceptance criteria and study details.

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The FlowTriever2 Catheter is indicated for:
• The non-surgical removal of emboli and thrombi from peripheral blood vessels.
• Injection, infusion, and/or aspiration of contrast media and other fluids into or from a blood vessel.
The FlowTriever2 Catheter is intended for use in the peripheral vasculature and for the treatment of pulmonary embolism (PE).

The Inari FlowTriever Retrieval/Aspiration System is a single-use, sterile medical device comprised of the following components, each packaged separately:
• FlowTriever2 Catheter - Model 11-102
• Triever20® - Model 21-101
• Triever24® - Model 22-101
• Triever16® - Model 25-101

The FlowTriever2 Catheter is used to engage and retrieve emboli and thrombi. It consists of a coaxial catheter assembly with an outer Delivery Catheter and an inner catheter having a flexible shaft attached to distal self-expanding wireform element. A "Y" connector with a rotatable hemostatic valve and stopcock is attached to the proximal end of the outer Delivery Catheter. Radiopaque markers are positioned near the distal tip of the Delivery Catheter and at the proximal and distal ends of the self-expanding FlowTriever element to aid with fluoroscopic visualization.

The Triever20 and Triever24 (packaged separately) provides a conduit for FlowTriever2 Catheter deployment, aspiration, and clot removal. It consists of a single lumen catheter with a proximal hemostasis valve and stopcock with flush port. A radiopaque marker is positioned near the distal tip to aid with fluoroscopic visualization. A Dilator compatible with a 0.035" guidewire is provided for the Triever20 and Triever24 to aid insertion.

Alternatively, the Triever16 can be tracked through the Triever Catheter (20 or 24 Fr) over the pre-inserted guidewire to a location proximal to the targeted thrombus. Thrombus is removed via aspiration using the Triever16, after which it can be withdrawn and flushed to remove residual thrombus, leaving the Triever Catheter in place as a conduit for subsequent thrombectomy passes. The user may elect to perform a thrombectomy pass using the FlowTriever2 Catheter or through the Triever16 using aspiration alone.

The Inari FlowTriever Retrieval/Aspiration System has not been evaluated for use in the neurovasculature.

The provided text is related to the FDA 510(k) premarket notification for the FlowTriever2 Catheter, specifically for an expanded indication for the treatment of pulmonary embolism (PE). This document focuses on demonstrating substantial equivalence to a predicate device based on non-clinical and clinical testing.

The information primarily describes the device, its indications for use, comparison with a predicate device, and the specifics of a clinical study (FLARE-FT2) to support the expanded indication. However, it does not delineate specific acceptance criteria with reported device performance in a table format as requested. Furthermore, it does not specify details about sample sizes for test sets, ground truth establishment methods for test/training sets, or specific information about MRMC studies, as the device is not an AI/ML diagnostic system.

Based on the provided text, here's an attempt to extract the requested information, with notable limitations due to the nature of the document:

1. Table of Acceptance Criteria and Reported Device Performance:

The document describes the primary safety and effectiveness endpoints of the FLARE-FT2 clinical study. These endpoints serve as the "acceptance criteria" and the study results are the "reported device performance."

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

• Sample Size (Test Set): A total of 50 patients were enrolled in the FLARE-FT2 clinical study.
• Data Provenance: The study was a prospective, single-arm, multicenter confirmatory study. The country of origin is not explicitly stated, but clinical studies are generally conducted in a controlled, multi-center environment, likely within the US given FDA submission.

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

The document describes a clinical study for a medical device (catheter) used for embolectomy/thrombectomy, not an AI/ML diagnostic software. Therefore, the concept of "ground truth" established by experts for a "test set" in the context of an algorithm's performance is not directly applicable here. The outcomes measured in the clinical study (SAE, changes in pulmonary arterial pressure) are direct physiological measurements or clinical events, not classifications requiring expert interpretation for ground truth.

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

As this is a clinical trial evaluating a medical device, not an AI/ML diagnostic, adjudication methods like N+1 consensus are not detailed for establishing ground truth of image interpretations. Clinical trials typically have a different structure for reviewing and adjudicating adverse events and clinical outcomes, often involving independent clinical event committees (CECs) or data safety monitoring boards (DSMBs), but the specifics are not included in this 510(k) summary.

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. This document does not mention an MRMC study. The device is a physical catheter for thrombectomy and embolectomy, not an AI/ML-driven diagnostic or assistive software requiring comparison of human reader performance with and without AI assistance.

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

No. This question is irrelevant as the device is a physical catheter, not an algorithm.

7. The type of ground truth used:

The "ground truth" in the context of this device's clinical study refers to directly measured safety and effectiveness outcomes in patients.

• Safety: Incidence of Serious Adverse Events (SAE), including device-related mortality, major bleeding, and intra-procedural adverse events. These are clinical outcomes directly observed and recorded.
• Effectiveness: Change in mean and systolic pulmonary arterial pressure (a physiological measurement).

8. The sample size for the training set:

As this is a physical medical device and its clearance is based on a clinical trial for effectiveness and safety, not on an AI/ML model for which a "training set" would be used, this concept is not applicable here. The 50 patients in the FLARE-FT2 study represent the clinical evaluation data.

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

Not applicable, as no AI/ML model with a separate training set is described. The "ground truth" for the clinical study was established through direct patient observation and physiological measurements.

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The Aventus Thrombectomy System is indicated for:

• The non-surgical removal of emboli and thrombi from blood vessels.
• Iniection, infusion, and/or aspiration of contrast media and other fluids into or from a blood vessel.
  The Aventus Thrombectomy System is intended for use in the peripheral vasculature.

The Aventus Thrombectomy System is a catheter-based manual aspiration svstem designed for minimally invasive removal of emboli and thrombi from the peripheral vasculature and/or infusing fluids into the peripheral vasculature. The System is comprised of the following major components:

• Aventus Thrombectomy Catheter
• Clot Management System consisting of:
  • Aspiration Syringe
  • Clot Canister
    The System is compatible with a standard 24-French (24F) introducer sheath, 4F or 5F Navigation Catheters (based on Aventus Thrombectomy Catheter model) and is to be used with 0.035" guidewires. The System is provided sterile and is intended for single use only.
    The Aventus Thrombectomy Catheter includes an atraumatic radiopaque Distal Tip with embedded sensors, and an angled aspiration orifice for directional aspiration and navigation without a dilator. The Catheter Handle assists the clinician in navigating within the vasculature and includes a Sensing Indicator and houses the Sensing electronics.
    The Aspiration Catheter shaft incorporates a metallic reinforcement layer made of stainless steel, an inner liner and polymeric outer jacket having variable stiffness.
    The System is provided with a 60-cc dual action manual syringe which allows for directional flow control and directs aspirated blood and clot into the Clot Canister.

The provided document is a 510(k) summary for the Aventus Thrombectomy System. This type of submission focuses on demonstrating substantial equivalence to a legally marketed predicate device rather than providing extensive details on a de novo clinical study with specific acceptance criteria and detailed performance of an AI algorithm.

Therefore, the requested information regarding acceptance criteria, specific device performance metrics in a clinical context (like sensitivity, specificity, accuracy), sample sizes for test sets, expert qualifications, and ground truth establishment, is not present in this document. The document primarily addresses engineering and safety performance data, often leveraged from the predicate device, to support the claim of substantial equivalence.

Here's an analysis based on the information available in the document:

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

The document does not provide a table of acceptance criteria for clinical performance (e.g., sensitivity, specificity, or success rates for thrombus removal in a clinical setting) or reported device performance against such metrics. Instead, it lists various engineering and safety performance tests and states that the "physical and functional requirements were met" and that the device "demonstrated that the System was able to be used safely ... and met all pre-defined study endpoints" in an animal study.

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 specified for any clinical or human-use test set. The animal study mentions a "chronic large animal GLP study," but an N is not given.
• Data Provenance: Not specified for any clinical or human-use data. The animal study was conducted in compliance with GLP regulation (21 CFR Part 58), which implies a controlled, prospective study design, but the location is not mentioned.

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

This information is not available in the document. The submission focuses on substantial equivalence based on material, engineering, and safety testing, not on a clinical performance study requiring expert ground truth establishment for diagnostic or treatment effectiveness.

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

This information is not available in the document, as there is no described clinical test set requiring expert adjudication for ground truth.

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

There is no mention of an MRMC study or AI assistance in this document. The device is a physical thrombectomy system, not an AI-powered diagnostic or assistive tool for human readers.

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

This information is not applicable as the device is not an AI algorithm. It's a medical device system.

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

For the safety and performance tests described:

• Biocompatibility: Ground truth is established by standardized testing protocols (ISO 10993-1:2018) and the observation of biological responses to the materials.
• Sterilization: Ground truth is established by demonstrating a Sterility Assurance Level (SAL) and meeting pyrogen limits.
• Bench Performance: Ground truth is against predefined engineering specifications and physical properties (e.g., tensile strength values, leak rates, clot removal efficiency in a model).
• Non-Clinical (GLP Animal Testing): Ground truth is established by pre-defined study endpoints focusing on safety and functional performance in an animal model, observed by veterinary and research staff.
  Ultimately, the ground truth for this submission is that the device is substantially equivalent to its predicate based on the provided engineering, safety, and non-clinical data.

8. The sample size for the training set

This information is not applicable as the device is not an AI algorithm.

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

This information is not applicable as the device is not an AI algorithm.

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The Artix™ MT thrombectomy device is indicated for:

· The non-surgical removal of emboli and thrombi from blood vessels

· Injection, infusion, and/or aspiration of contrast media and other fluids into or from a blood vessel.

The Artix™ MT thrombectomy device is intended for use in the peripheral vasculature.

The Artix™ Thin-Walled Sheath is indicated for:

· The non-surgical removal of emboli and thrombi from blood vessels.

· Injection, infusion, and/or aspiration of contrast media and other fluids into or from a blood vessel.

· Use as a conduit for endovascular devices.

· Use in facilitating the insertion and guidance of an intravascular catheter into a selected blood vessel. The funnel provides temporary vascular occlusion during these and other angiographic procedures.

The Artix™ Thin-Walled Sheath is intended for use in the peripheral vasculature.

The Artix™ MT is a single-use, over-the-wire catheter device used for the minimally invasive treatment of thromboemboli in the peripheral vasculature. The Artix MT is packaged with the following components: Artix MT (3-6 mm or 4-8 mm) Cleaning accessory 1-Way Stopcock The Artix MT is inserted over-the-wire through a compatible sheath (such as the Artix Thin-Walled Sheath) and advanced until its proximal marker band is distal to the target thrombus. The self-expanding element is deployed by retracting the delivery catheter. Thrombus is engaged and removed by retracting the Artix MT into the sheath and out of the patient. Once the procedure is complete, the system is completely withdrawn from the patient.

The Artix™ Thin-Walled Sheath ("Artix Sheath") is a single-use, over-the-wire system designed to facilitate the insertion and guidance of an intravascular catheter into a selected peripheral blood vessel and act as a conduit for endovascular devices. The Artix Sheath also non-surgically aspirates thromboemboli from selected vessels and is capable of infusion/aspiration of fluids into or from a selected vessel. The Artix Sheath is packaged with the following components: Artix Thin-Walled Sheath (65 cm or 90 cm) Sheath Dilator (0.035" guidewire compatibility) Funnel Catheter and Funnel Catheter Dilator (0.035" guidewire compatibility) Funnel Loading Tool (2) Large Bore Syringe, 30 mL The Artix Sheath is inserted over-the-wire and advanced to a desirable position. Any compatible endovascular device, such as the Artix MT, can then be inserted through the Artix Sheath for access into the peripheral vasculature. The provided funnel catheter accessory can also be inserted through the Sheath and deployed to provide flow occlusion of the vessel during the procedure to aid with the system's clot ingestion. Compatible endovascular devices, such as the Artix MT, can be used through the 6 Fr inner diameter of the funnel catheter as well. The provided 30 mL syringe can be used to aspirate clot in the vessel or Sheath and infuse contrast media and other fluids as required. Once the procedure is complete, the funnel catheter (if used) is removed prior to withdrawal of the entire system from the patient, and standard 7 Fr closure devices can be used.

The provided document describes the 510(k) premarket notification for two devices: Artix™ MT and Artix™ Thin-Walled Thrombectomy Sheath. The document focuses on demonstrating substantial equivalence to predicate devices through non-clinical testing. It does not contain information about acceptance criteria or studies involving human expert performance (such as MRMC studies, specific ground truth established by experts, or sample sizes for test/training sets relevant to AI/software performance).

Therefore, I cannot fulfill the request for information on acceptance criteria and a study proving device meets those criteria in the context of AI/software performance with human-in-the-loop. The document exclusively discusses the substantial equivalence of physical medical devices based on their design, materials, and non-clinical performance (e.g., burst strength, tensile strength, simulated use, biocompatibility).

The "study" mentioned in the document refers to a series of non-clinical tests conducted to demonstrate that the devices perform as intended and are as safe and effective as their predicate devices. These tests are not related to AI or human reader performance.

Here's an overview of the information that is available in the document, which primarily concerns the physical characteristics and performance of the devices:

1. Table of Acceptance Criteria and Reported Device Performance:

The document does not present acceptance criteria in a quantitative table with reported device performance in the way one might expect for AI or software. Instead, it lists various non-clinical tests (e.g., Biocompatibility, Sterilization, Packaging Testing, Visual and Dimensional Inspections, Simulated Use Testing, Hemostasis, Burst, Corrosion, Radiopacity, Radial Force, Chronic Clot Analog for Artix MT; and similar tests for Artix Thin-Walled Sheath) and states that "The passing results demonstrate that the subject device meets biological safety requirements" (for biocompatibility) and that "verification and validation testing were identified to support the substantial equivalence" and "The testing provided supports the Artix MT's substantial equivalence." This implies that the devices met their internal acceptance criteria for these physical and functional tests. However, the specific numerical acceptance criteria and performance outcomes for each test are not detailed in this summary.

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

• Test Set (Non-clinical): The document does not specify the sample sizes for the individual non-clinical tests conducted (e.g., how many units were tested for burst strength, or simulated use).
• Data Provenance: Not applicable in the context of device performance data presented, as it refers to non-clinical, lab-based testing of the physical devices.

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

• Not applicable. The "ground truth" for the performance of these physical medical devices is established through engineering specifications, material science, and physical testing protocols, not through expert consensus on interpretation of medical images or patient outcomes.

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

• Not applicable. This concept typically applies to human reader studies where disagreements in interpretations need to be resolved. For non-clinical device testing, results are typically objective measurements against pre-defined specifications.

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. The document explicitly states: "Neither animal testing nor clinical testing were required for the determination of substantial equivalence." This means no human-in-the-loop or clinical studies were performed or are discussed here. MRMC studies are not relevant to this submission.

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

• Not applicable. These are physical thrombectomy devices, not AI algorithms.

7. The type of ground truth used:

• For the non-clinical tests ("verification and validation testing"), the "ground truth" is defined by engineering specifications, material properties, and performance benchmarks established through industry standards and the predicate device's known performance. For example, a "burst" test would have a pre-defined pressure or force target that the device must withstand to pass.

8. The sample size for the training set:

• Not applicable. This concept is for machine learning models. These devices are physical products.

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

• Not applicable.

In summary, the provided FDA 510(k) summary is for physical medical devices and does not describe acceptance criteria or studies related to AI performance or human reader studies. The "studies" mentioned are non-clinical verification and validation tests to ensure the physical device meets its design specifications and is substantially equivalent to existing predicate devices.

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