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The TriMed Total Wrist fusion system is indicated for the following:

1. Wrist arthrodesis
2. Fractures of the wrist
3. Osteotomies of the wrist

The TriMed Total Wrist Fusion products are devices which are to be used as an aid to fixation of bone for treatment of certain fractures, osteotomies, or arthrodesis that lend themselves to the principle of plate and/or screw fixation.

The TriMed Total Wrist Fusion System implants are made from implant grade stainless steel.

The provided FDA 510(k) clearance letter is for a medical device (TriMed Total Wrist Fusion System) andではありません a software/AI product. Therefore, the questions related to acceptance criteria, study details, expert involvement, and ground truth establishment for AI performance are not directly applicable.

However, I can extract the information relevant to the device's testing and acceptance criteria as described in the document, which focuses on mechanical performance rather than AI performance.

Here's a breakdown of the available information:

1. Table of Acceptance Criteria and Reported Device Performance

Note: The specific numerical or qualitative acceptance criteria from these guidance documents are not detailed in the provided FDA letter. The letter only states that the device met them.

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

• Sample Size: Not explicitly stated. The document refers to "All test samples," indicating that a set of samples were tested, but the exact number is not provided.
• Data Provenance: Not applicable in the context of clinical data for AI. For mechanical testing, the data would originate from laboratory testing of manufactured devices.

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

• Not applicable. This relates to AI model evaluation, not the mechanical testing of a physical medical device.

4. Adjudication Method for the Test Set

• Not applicable. This relates to AI model evaluation, not the mechanical testing of a physical medical device.

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

• No. The document explicitly states: "Clinical studies were not conducted for the subject devices." MRMC studies are typically for evaluating the clinical effectiveness of diagnostic tools, often involving AI.

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

• Not applicable. This refers to AI algorithm performance. The device is a physical fusion system.

7. The Type of Ground Truth Used

• For mechanical testing: The "ground truth" implicitly refers to the specified performance requirements and limits outlined in the FDA guidance documents (e.g., strength, fatigue life, stiffness). The device's performance is measured against these engineering standards.

8. The Sample Size for the Training Set

• Not applicable. This refers to AI model training data.

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

• Not applicable. This refers to AI model training data.

Summary specific to the provided document:

The TriMed Total Wrist Fusion System underwent non-clinical (mechanical) testing based on FDA guidance documents for orthopedic fracture fixation plates and metallic bone screws/washers. The key finding is that all tested samples of the device met the specified acceptance criteria outlined in these guidance documents. No clinical studies were performed. The "ground truth" in this context refers to the engineering performance standards set by the FDA for such devices.

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