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The Acueity ViaDuct Miniscope and Accessories are intended for use by a physician for viewing an interior cavity of the human body through either a natural opening or an incision. The accessory device is capable of grasping soft tissue for biopsy. The instruments are to be used for diagnostic or graspilly son thisue not intended for therapeutic use.

Like the predicate devices, the Acueity ViaDuct Miniscope and Accessories consist of a semi-rigid fiberscope with an irrigating outer sheath or introducer capable of passing a biopsy needle to a soft tissue site for view or, to view and assess/biopsy soft tissue. The Acueity ViaDuct Miniscope and Accessories is also designed with an inner grasping sheath or tube that can be placed within the outer introducer, which together act as forceps capable of grasping soft tissue for biopsy. The combination of these devices allows access to very finite spaces.

The provided 510(k) summary (K040949) for the ViaDuct Miniscope and Accessories does not contain any information regarding specific acceptance criteria, device performance studies, or clinical trial data. It is a premarket notification for a medical device seeking substantial equivalence to predicate devices, rather than a submission detailing performance against predefined metrics.

Therefore, many of the requested details about acceptance criteria, study design, and performance metrics cannot be extracted from the given text.

Here's a breakdown of what can and cannot be answered based on the provided document:

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

• Cannot be provided. The document does not specify any quantitative acceptance criteria or provide a table of reported device performance metrics (e.g., sensitivity, specificity, accuracy) for diagnosis or biopsy. The submission focuses on demonstrating substantial equivalence in terms of intended use, principles of operation, anatomical site, safety characteristics, and physical characteristics.

2. Sample size used for the test set and the data provenance (e.g., country of origin of the data, retrospective or prospective)

• Cannot be provided. The document states, "All necessary testing was or will be performed on the ViaDuct Miniscope and Accessories to ensure that the product is substantially equivalent to the predicate devices and to ensure that the new device does not have a significant effect on safety and effectiveness." However, it does not detail any specific test sets, sample sizes, or data provenance from studies designed to prove clinical performance. This typically refers to bench testing, biocompatibility, sterilization, and sometimes animal studies, but not necessarily human clinical trials for diagnostic performance in the way AI/ML devices often do.

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)

• Cannot be provided. No clinical test set involving expert ground truth determination is described in this document.

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

• Cannot be provided. As no clinical test set is detailed, no adjudication method is mentioned.

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

• Cannot be provided. This document predates the common practice of extensive AI/ML efficacy studies and does not describe any MRMC studies comparing human readers with and without AI assistance. The device is purely an imaging and biopsy tool, not an AI-powered diagnostic algorithm.

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

• Cannot be provided. This device is a manual, physical instrument (fiberscope, biopsy forceps) and does not involve an algorithm with standalone performance.

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

• Cannot be provided. No specific ground truth type is mentioned for a performance study. For a device like this, "ground truth" might refer to the successful retrieval of tissue biopsies or direct visual confirmation of anatomical structures, but this is not detailed in the context of a performance study proving diagnostic accuracy.

8. The sample size for the training set

• Cannot be provided. This refers to a physical device, not an AI algorithm, so there is no "training set."

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

• Cannot be provided. As there is no training set for an algorithm, this question is not applicable.

Summary of Device and Regulatory Context from the Document:

• Device Name: ViaDuct Miniscope and Accessories
• Device Description: Semi-rigid fiberscope with an irrigating outer sheath/introducer, capable of passing a biopsy needle, and an inner grasping sheath/tube functioning as forceps for soft tissue biopsy.
• Intended Use: For use by a physician for viewing an interior cavity of the human body (via natural opening or incision) and for grasping soft tissue for biopsy. It is for diagnostic purposes only and not therapeutic use.
• Regulatory Pathway: 510(k) Pre-market Notification, seeking substantial equivalence.
• Predicate Devices: Acueity (formerly DOFI Communications, Inc.) Miniaturized Biopsy Scope (K011189) and Acueity ViaDuct Microendoscope and Accessories (K983527).
• Substantial Equivalence Claim: Based on similar intended use, principles of operation, anatomical site for viewing and sampling, safety characteristics, and physical characteristics compared to predicate devices.
• Conclusion: The FDA determined the device is substantially equivalent to legally marketed predicate devices, allowing it to be marketed under general controls.

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