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The MicroPlex Coil System is intended for the endovascular embolization of intracranial aneurysms and other neurovascular abnormalities such as arteriovenous malformations and arteriovenous fistulae. The MCS is also intended for vascular occlusion of blood vessels within the neurovascular system to permanently obstruct blood flow to an aneurysm or other vascular malformation and for arterial and venous embolizations in the peripheral vasculature.

The Cosmos consist of an implant coil made of platinum alloy. The coils are designed in 3D spherical structure in various loop sizes and lengths. The coil is attached to a V-Trak™ MCS delivery pusher via a polymer filament. The delivery pusher contains radiopaque positioning markers at the distal end. The proximal end is inserted into a hand held battery powered V-Grip™ Detachment Controller. The implant segment detaches upon activation of the Detachment Controller.

The MicroPlex Coil System - Cosmos (K093919) is a neurovascular embolization device. The provided document is a 510(k) summary, which indicates that the device's acceptance criteria and performance are typically evaluated through substantial equivalence to a predicate device, rather than a clinical study with detailed statistical endpoints.

Based on the provided information, here's a breakdown of the acceptance criteria and the "study" (bench testing) that demonstrates the device meets these criteria:

1. Table of Acceptance Criteria and Reported Device Performance

The acceptance criteria for the MicroPlex Coil System - Cosmos are defined by the predicate device's established performance and design specifications. The "reported device performance" in this context refers to the results of bench tests conducted to demonstrate that the new device meets these pre-established criteria. The document states that all listed tests "Met established criteria," implying satisfactory performance against predefined internal specifications or industry standards.

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

The document explicitly states that the submission is a "510(k) SUMMARY OF SAFETY AND EFFECTIVENESS" and that the "Cosmos Coils are substantially equivalent to the predicate device with regard to intended use, patient population, device design, materials, processes, and operating principal."

This indicates that the primary "study" proving the device meets acceptance criteria is bench testing to demonstrate performance similar to the predicate device. The document does not specify the sample size used for each of the listed bench tests.

Regarding data provenance:

• Country of Origin: The submitting company, MicroVention, Inc., is based in Tustin, California, U.S.A. Therefore, the bench testing was likely conducted in the USA.
• Retrospective or Prospective: Bench testing, by its nature, is a prospective evaluation where tests are designed and performed to assess the device's characteristics. It is not based on historical patient data.

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

Since this is a 510(k) for a device demonstrated through substantial equivalence and bench testing, there is no mention of experts involved in establishing ground truth for a test set in the clinical sense. Ground truth for bench testing would typically be engineering specifications, established scientific principles, or comparison to the predicate device's known performance. These are not typically established by clinical experts in the same way as, for example, a radiologist establishing ground truth for an imaging AI algorithm.

4. Adjudication Method for the Test Set

As there is no clinical test set or human expert review described for establishing ground truth, there is no adjudication method mentioned. The "acceptance criteria" are likely engineering specifications or performance metrics derived from the predicate device.

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

No, a multi-reader multi-case (MRMC) comparative effectiveness study was not conducted or mentioned in this 510(k) summary. This type of study is common for evaluating the effectiveness of AI-assisted diagnostic tools, which is not the nature of this device (a physical neurovascular embolization coil).

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

No, a standalone algorithm performance study was not done. This device is a physical medical implant, not an algorithm or AI system.

7. The Type of Ground Truth Used

The "ground truth" for the acceptance criteria for this device is based on:

• Engineering Specifications: Pre-defined technical requirements for the device's visual, dimensional, and mechanical properties.
• Performance of the Predicate Device: The MicroPlex Coil System (MCS) - Cosmos (K082461 and K090891) serves as the benchmark against which the new device (Cosmos) is compared for substantial equivalence. The predicate device's established safety and effectiveness dictate the expected performance of the new device.

There is no mention of pathology, outcomes data, or expert consensus in a clinical setting establishing "ground truth" for these bench tests.

8. The Sample Size for the Training Set

Not applicable. This device is a physical medical implant, not a machine learning algorithm. Therefore, there is no "training set" in the context of AI or data-driven model development.

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

Not applicable. As stated above, there is no training set for this device.

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The MicroPlex Coil System is intended for the endovascular embolization of intracranial aneurysms and other neurovascular abnormalities such as arteriovenous malformations and arteriovenous fistulae. The MCS is also intended for vascular occlusion of blood vessels within the neurovascular system to permanently obstruct blood flow to an aneurysm or other vascular malformation and for arterial.

The Cosmos consist of an implant coil made of platinum alloy. The coils are designed in 3D spherical structure in various loop sizes and lengths. The coil is attached to a V-Trak™ MCS delivery pusher via a polymer filament. The delivery pusher contains radiopaque positioning markers at the distal end. The proximal end is inserted into a hand held battery powered V-Grip™ Detachment Controller. The implant segment detaches upon activation of the Detachment Controller.

The provided 510(k) summary describes a neurovascular embolization device, the MicroPlex Coil System - Cosmos, and primarily focuses on demonstrating its substantial equivalence to a predicate device through bench testing. As such, the study does not involve AI or human reader performance.

Here's a breakdown of the requested information based on the provided text:

1. Table of Acceptance Criteria and Reported Device Performance

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

The document does not specify the exact sample sizes used for each bench test. The data provenance is laboratory-based testing of the device components. There is no information regarding country of origin of data or whether it was retrospective or prospective, as these are not relevant to bench testing.

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

Not applicable. Bench testing does not involve human experts to establish ground truth in the way clinical studies or AI performance validations do. The "ground truth" for bench tests is defined by established engineering and manufacturing specifications and test methods.

4. Adjudication method for the test set

Not applicable. Adjudication methods like "2+1" are used in clinical trials or evaluations where there's subjectivity and disagreement among human reviewers. Bench tests follow objective, predefined protocols and measurements.

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, a multi-reader multi-case (MRMC) comparative effectiveness study was not done. This device is a physical medical device (neurovascular embolization coil), not an AI-powered diagnostic or assistive tool. Therefore, there is no discussion of human reader improvement with or without AI assistance.

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

No, a standalone (algorithm only) performance study was not done. This device is a physical medical device, not an algorithm.

7. The type of ground truth used

The ground truth used for these bench tests would be the pre-defined engineering specifications, material properties, and functional performance requirements for the device. These are objective and measurable parameters established during the device's design and development.

8. The sample size for the training set

Not applicable. This device is not an AI algorithm, so there is no "training set."

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

Not applicable, as there is no training set for a physical medical device.

Ask a specific question about this device

The MicroPlex Coil System is intended for the endovascular embolization of intracranial aneurysms and other neurovascular abnormalities such as arteriovenous malformations and arteriovenous fistulae. The MCS is also intended for vascular occlusion of blood vessels within the neurovascular system to permanently obstruct blood flow to an aneurysm or other vascular malformation and for arterial and venous embolizations in the peripheral vasculature.

The Cosmos consist of an implant coil made of platinum alloy. The coils are designed in 3D spherical structure in various loop sizes and lengths. The coil is attached to a V-Traker MCS delivery pusher via a polymer filament. The delivery pusher contains radiopaque positioning markers at the distal end. The proximal end is inserted into a hand held battery powered V-Grip 10 Detachment Controller. The implant segment detaches upon activation of the Detachment Controller.

The provided text describes a 510(k) premarket notification for the MicroPlex Coil System - Cosmos, a neurovascular embolization device. The submission aims to demonstrate substantial equivalence to a predicate device.

Here's an analysis of the acceptance criteria and study information based on the provided text:

1. Table of Acceptance Criteria and Reported Device Performance

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

The document does not provide details on the specific sample sizes used for each of the bench tests. It also does not specify the data provenance (e.g., country of origin, retrospective or prospective) for these tests. The tests appear to be laboratory-based bench tests rather than clinical studies involving patient data.

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

This document describes bench testing, not clinical studies involving human-derived ground truth. Therefore, information about the number or qualifications of experts establishing ground truth for a test set is not applicable and not provided. The "ground truth" for the bench tests would have been the technical specifications and expected performance defined by the manufacturer for each test.

4. Adjudication Method for the Test Set

Since the document focuses on bench testing and not human interpretation of data, an adjudication method (such as 2+1 or 3+1) is not applicable and not mentioned. The tests would have been evaluated against predefined technical specifications.

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

No, an MRMC comparative effectiveness study was not conducted or reported in this document. This submission is a 510(k) for a device, and the focus is on demonstrating substantial equivalence through bench testing, not on comparative effectiveness with human readers or AI.

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

This document is about a physical neurovascular embolization device, not an algorithm or AI system. Therefore, a "standalone algorithm performance" study is not applicable and not mentioned.

7. The Type of Ground Truth Used

For the bench tests, the "ground truth" used was the established criteria/specifications for each test, as determined by the manufacturer based on engineering and design requirements. This is inferred from the "Met established criteria" results. It's not expert consensus, pathology, or outcomes data in the clinical sense.

8. The Sample Size for the Training Set

This document describes a medical device, not an AI model. Therefore, the concept of a "training set" in the context of machine learning is not applicable and not mentioned.

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

As this document does not pertain to an AI model, the concept of a training set and its ground truth establishment is not applicable and not mentioned. The "ground truth" for the device's design and manufacturing would be based on engineering principles, material science, and performance specifications.

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