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The Merit Prelude™ Sheath Introducer is intended to provide access and facilitate the percutaneous introduction of various devices into veins and/ or arteries while maintaining hemostasis for a variety of diagnostic and therapeutic procedures.

Merit Medical System's Prelude™ Sheath Introducer consists of a sheath introducer with compatible vessel dilator that snaps securely into the sheath introducer hub. The sheath is equipped with a sideport attached to a segment of extension tubing terminating in a 3-way stopcock. The sheath hub contains an integral hemostasis valve and suture ring. The device is marketed with and without an appropriately sized guide wire and/ or access needle.

The provided text is a 510(k) Premarket Notification for the Merit Prelude™ Sheath Introducer and does not contain the detailed information necessary to answer all parts of your request regarding acceptance criteria and a study proving device performance in the context of clinical metrics or AI performance.

This document describes a medical device (a sheath introducer) and its submission for FDA clearance based on substantial equivalence to a predicate device. The "Performance Testing" section states: "Verification and Validation Studies, as identified in the Clinical Risk Assessment, were completed and demonstrated that the modified devices met all of their pre-determined acceptance criteria." However, it does not provide the specific acceptance criteria or the reported device performance in a quantifiable manner (e.g., sensitivity, specificity, accuracy, or other clinical metrics).

Crucially, this is not an AI/ML device, so questions related to AI performance, such as human reader improvement with AI, standalone algorithm performance, training set details, or ground truth establishment for an AI model, are not applicable.

Here's a breakdown of what can be extracted from the provided text, along with explanations for the unanswerable questions:

1. Table of Acceptance Criteria and Reported Device Performance

Note: The document does not provide specific quantifiable acceptance criteria (e.g., "burst pressure > X psi", "hemostasis valve leakage < Y mL/min") or their corresponding reported numerical performance. It only states that the criteria were met.

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

This information is not provided in the document. The filing refers to "Verification and Validation Studies" but does not detail the sample sizes for those tests or the provenance of any data (e.g., country of origin, retrospective/prospective). While medical device testing often involves in-vitro and potentially in-vivo (animal or human) testing, the specifics are not disclosed here.

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

This information is not provided and is generally not applicable in the context of a 510(k) for a physical medical device like a sheath introducer, which is evaluated based on engineering and biocompatibility performance rather than diagnostic accuracy requiring expert interpretation.

4. Adjudication Method for the Test Set

This information is not provided and is not applicable for this type of medical device evaluation. Adjudication methods are relevant for studies involving human interpretation or clinical endpoints that require review by multiple experts.

5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study

A MRMC comparative effectiveness study was not done. This type of study is relevant for diagnostic devices, particularly those involving image interpretation or other output that human readers evaluate, and often for AI/ML-driven diagnostic aids. The Prelude™ Sheath Introducer is a physical surgical access device.

6. Standalone (Algorithm Only) Performance Study

A standalone performance study was not done. This question is applicable to algorithms or software as a medical device. The Prelude™ Sheath Introducer is a physical medical device.

7. Type of Ground Truth Used

The concept of "ground truth" as typically applied in diagnostic performance studies (e.g., pathology, outcomes data, expert consensus for disease presence) is not directly applicable to the performance evaluation described for this physical device. The "ground truth" for a sheath introducer would be its adherence to engineering specifications and safety requirements (e.g., material strength, fluid dynamics, biocompatibility, dimensions), which are assessed through direct measurement and testing rather than comparison to a clinical "truth" about a patient's condition.

8. Sample Size for the Training Set

This information is not provided and is not applicable. This is a physical medical device, not an AI/ML model that requires a training set.

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

This information is not provided and is not applicable. As it's not an AI/ML model, there is no "training set" or "ground truth" in that context.

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