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The Lunderquist Extra Stiff Wire Guides are intended to facilitate catherization and/or placement of devices during vascular diagnostic procedures and vascular interventional procedures. The Lunderquist Extra Stiff Wire Guides are intended for use in the major vessels, the aorta and vena cava, including their access vessels and adjacent vessels.

Straight (TSMG-/-LES) and Curved (TSCMG-/-LES) Lunderquist® Extra Stiff Wire Guide. PTFE-coated stainless steel wire guides with lengths ranging from 90 cm to 300 cm and either a 4 cm or 7 cm flexible tip. For the 260 cm and 300 cm lengths, the flexible tip includes an inner gold coil for enhanced visibility. The J-curve radius for the curved wire guides is either 3 mm or 7 mm.

Double curved (TSCMG-/-LESDC) and extended double curved (TSCMG-/-E-LESDC) Lunderquist® Extra Stiff DC Wire Guide. PTFE-coated stainless steel wire guides with a 4 cm flexible tip that includes an inner gold coil for enhanced visibility. TSCMG-/-LESDC has a primary/secondary curve radius on 75/15 mm, and TSCMG-/-E-LESDC has an extended primary/secondary curve radius on 55/15 mm.

The Lunderquist® Extra Stiff Wire Guide is used both to assist in anatomical access for other devices (notincluded) and to support the delivery of medical devices. The wire guide is introduced into the target vessel; other devices, such as a sheath, catheter, stent, or endo vascular graft can then be passed over the wire guide to be positioned or manipulated within the vascular system.

The Lunderquist® Extra Stiff Wire Guides are available in different lengths, shapes, etc. to accommodate different anatomical applications.

The provided document, a 510(k) premarket notification for the Lunderquist Extra Stiff Wire Guides, does not contain information about acceptance criteria or a study proving that the device meets such criteria in the context of an Artificial Intelligence (AI) or machine learning (ML) enabled medical device.

The document states that the purpose of the submission is to "clarify the intended use statement and update device labeling based on postmarket surveillance information." It explicitly mentions:

"No changes to the design, materials, manufacturing, sterilization, or principles of operation have been introduced with the subject devices. Therefore, performance testing was not warranted, and testing provided for the predicate device (K171513) remains applicable."

This indicates that new performance testing, particularly for the type of criteria and study you're asking about (which are typical for AI/ML device evaluations), was not conducted for this submission because the device itself and its function have not changed. The device is a physical catheter guide wire, not a software algorithm.

Therefore, I cannot provide the requested information based on the given text. The questions you've posed relate to the validation of AI/ML models, which is not applicable to a submission for a physical medical device like a wire guide, especially one where no design changes have been made.

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Pre-Formed Extra Support guidewire is intended to facilitate the introduction and placement of interventional devices within the chambers of the heart, including those used during transcatheter aortic valve procedures.

The Pre-Formed Guidewire Extra Support guidewire is designed to facilitate device placement during TAVR procedures and has a unique pre-shaped spiral distal tip to ensure placement within the heart. The guidewire is intended for single use.

The guidewire has a 0.035" diameter and is 275cm in length. The guidewire composed of two primary components: a core, and a coil. Both components are made of stainless steel. The core wire component is a piece of stainless-steel wire which is ground on the distal end to fit into the coil and provide flexibility. The proximal end of the core wire is coated with grev polytetrafluoroethylene (PTFE) coating. The coil component is fitted over the distal end of the core and is a stainless-steel coiled with green PTFE coating. The coil and core components are secured together using a weld on the distal and a glue joint at the proximal end of the coil, forming the guidewire. The pre-shaped distal end of the guidewire is available in three sizes (extra-small, small and large).

The Pre-Formed Extra Support guidewire is sterilized using ethylene oxide. There are no accessories packaged with the Pre-Formed Extra Support guidewire.

The provided text is a 510(k) summary for a medical device (a guidewire) and not a summary of an AI/ML device study. Therefore, most of the requested information regarding AI/ML device acceptance criteria, study details, and data provenance cannot be extracted or inferred from this document.

The document discusses the substantial equivalence of a new guidewire to a predicate device based on bench testing and animal performance data, not AI/ML performance.

However, I can extract the acceptance criteria and the (non-AI/ML) "device performance" as reported for this specific guidewire:

1. Table of Acceptance Criteria and Reported Device Performance (for a Guidewire):

Missing (as the document is not about an AI/ML device):

• Sample size used for the test set and the data provenance: Not applicable in the context of an AI/ML test set. The document refers to samples for bench testing and a porcine model but does not specify "test sets" in the AI/ML sense.
• Number of experts used to establish the ground truth for the test set and the qualifications of those experts: Not applicable. Ground truth for an AI/ML model is typically established by human experts or pathology, which is not relevant for this guidewire's non-clinical and animal testing.
• Adjudication method (e.g. 2+1, 3+1, none) for the test set: Not applicable.
• 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 study type for AI-assisted human performance.
• If a standalone (i.e. algorithm only without human-in-the-loop performance) was done: Not applicable. This is for AI algorithm performance.
• The type of ground truth used (expert concensus, pathology, outcomes data, etc): Not applicable for an AI device. For this guidewire, "ground truth" equates to established engineering standards, material properties, and biological responses in animal models.
• The sample size for the training set: Not applicable (no AI model).
• How the ground truth for the training set was established: Not applicable (no AI model).

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