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The LuMend Frontrunner® CTO Catheter and Accessories are intended to facilitate the intraluminal placement of conventional guide wires beyond stenotic lesions (including chronic total occlusions) in the peripheral and coronary vasculature prior to further percutaneous intervention.

The LuMend Frontrunner® CTO Catheter is a sterile single-use percutaneous catheter consisting of a handle assembly with an integral rotator und a side port for internal device flushing, a proximal braided shaft for push and torque control, a flexible distal shaft which may be manually shaped, an optional guide wire lumen and a radiopaque blunt-shaped distal variable-size tip assembly in various shapes and sizes. A handle lever provides manual adjustment of the size of the tip assembly, and the handle rotator provides rotational control for the shaft and distal tip assembly. The distal assembly consists of a set of bilateral hinged tip pieces. Guidance and tracking of the catheter through the coronary or peripheral vasculature is accomplished by selective manual shaping of the flexible distal shaft, and controlled torquing of the handle rotator and/or the use of a guide wire.

The provided text describes the LuMend Frontrunner® CTO Catheter and Accessories, a Class II Percutaneous Catheter intended to facilitate the intraluminal placement of conventional guide wires beyond stenotic lesions (including chronic total occlusions) in the peripheral and coronary vasculature prior to further percutaneous intervention.

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

1. Table of Acceptance Criteria and Reported Device Performance:

The document does not explicitly state specific, quantifiable acceptance criteria with numerical targets. Instead, it relies on a comparison to a predicate device and general compliance with internal specifications and external standards.

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

The document mentions "in vitro and in vivo data" but does not specify the sample size for any of the tests. It also does not mention the country of origin for the data or whether it was retrospective or prospective.

3. Number of Experts Used to Establish Ground Truth and Qualifications:

The document does not mention any experts being used to establish ground truth for a test set. The evaluation relies on engineering tests and comparison to a predicate device's established performance.

4. Adjudication Method for the Test Set:

No adjudication method is mentioned as there's no indication of human interpretation or a "ground truth" derived from expert consensus.

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

A MRMC comparative effectiveness study was NOT mentioned or performed. This is a device for facilitating guidewire placement, not an imaging or diagnostic device that typically involves human reader interpretation.

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

This question is not applicable to this medical device submission. The LuMend Frontrunner® CTO Catheter is a physical medical device and does not involve an algorithm or AI that would operate in a "standalone" or "human-in-the-loop" manner. Its function is physical manipulation by a clinician.

7. Type of Ground Truth Used:

The "ground truth," in the context of this device's evaluation, is based on engineering specifications, compliance with FDA guidance documents (FDA's Coronary and Cerebrovascular Guidewire Guidance Document - January 1995), and the established performance characteristics of the predicate device. There is no mention of expert consensus, pathology, or outcomes data being used as "ground truth" for the device's technical performance.

8. Sample Size for the Training Set:

The concept of a "training set" is not applicable to this type of medical device submission. Training sets are typically associated with machine learning algorithms, which are not involved here. The testing described is for a physical device.

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

This question is not applicable for the same reasons as #8.

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