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TENS (Transcutaneous Electric Nerve Stimulation):
To be used for temporary relief of pain associated with sore and aching muscles in the shoulder, waist, back, neck, abdomen, bottom, upper extremities (arm), and lower extremities (leg) due to strain from exercise or normal household work activities.

EMS(Electrical Muscle Stimulation)/PMS (Powered Muscle Stimulation):
It is intended to be used to stimulate healthy muscles in order to improve and facilitate muscle performance.

Not Found

I am sorry, but the provided FDA 510(k) clearance letter for the TENS AND EMS (TENS and Muscle Stimulator) devices (K250360) does not contain the information requested regarding acceptance criteria and the study that proves the device meets those criteria.

This document is a formal clearance letter confirming the substantial equivalence of the device to a legally marketed predicate device. It outlines regulatory information, such as:

• Device name and product codes
• Regulation numbers and regulatory class
• Indications for Use
• Requirements for manufacturing and post-market surveillance (e.g., Quality System regulation, MDR, UDI rule)

It does not include:

• Details on performance studies.
• Specific acceptance criteria used for performance verification.
• Information on study design (sample size, data provenance, ground truth establishment, expert qualifications, adjudication methods, MRMC studies, or standalone algorithm performance).

To provide the information you've requested, one would typically need access to the summary of safety and effectiveness data (SSED) or the full 510(k) submission, which are often much more detailed than the public clearance letter.

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TENS (Transcutaneous Electric Nerve Stimulation):
To be used for temporary relief of pain associated with sore and aching muscles in the shoulder, waist, back, neck, abdomen, bottom, upper extremities (arm), and lower extremities (leg) due to strain from exercise or normal household work activities.

EMS (Electrical Muscle Stimulation):
It is intended to be used to stimulate healthy muscles in order to improve and facilitate muscle performance.

TENS AND EMS (TENS and Muscle Stimulator) (JT8012, JT8012B)

The provided text is a 510(k) clearance letter from the FDA for a TENS and EMS device (TENS and Muscle Stimulator). This type of letter does not contain the detailed information about the acceptance criteria and study data that would be submitted as part of the 510(k) premarket notification.

A 510(k) clearance signifies that the device is "substantially equivalent" to a legally marketed predicate device. While this process involves demonstrating safety and effectiveness, the FDA approval letter itself does not typically include the specific performance metrics, study designs, sample sizes, or ground truth methodologies that an AI/ML device submission would detail. Those technical details are part of the original submission package, not the clearance letter.

Therefore,Based on the provided FDA 510(k) Clearance Letter for the TENS AND EMS (TENS and Muscle Stimulator) device (K250053), there is no information available regarding the acceptance criteria or the specific study details that would prove the device meets these criteria. The letter is an official notification of clearance, stating that the device is substantially equivalent to a predicate device, and does not contain the detailed technical data typically found in a product's technical file or a clinical study report.

The following information cannot be extracted from the provided document:

1. Table of acceptance criteria and reported device performance: Not present.
2. Sample size used for the test set and data provenance: Not present.
3. Number of experts used to establish ground truth and qualifications: Not present.
4. Adjudication method for the test set: Not present.
5. Multi-reader multi-case (MRMC) comparative effectiveness study details: Not present.
6. Standalone (algorithm-only) performance: Not applicable, as this is a physical device, not an AI/ML algorithm.
7. Type of ground truth used: Not present.
8. Sample size for the training set: Not applicable (not an AI/ML device, so no training set in the typical sense).
9. How ground truth for the training set was established: Not applicable.

The letter focuses on regulatory compliance, outlining the device's classification, applicable regulations (e.g., Quality System regulation, UDI Rule), and general controls. It refers to the device as a "TENS and Muscle Stimulator," which is a traditional physical medical device, not an AI/ML software device. Therefore, the questions related to AI/ML specific studies (like MRMC, training sets, ground truth establishment methods for algorithms) are not relevant to this type of device and would not be found in its 510(k) clearance.

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