# K250784: Transcutaneous Electrical Nerve Stimulator ( K6133/ K6134/ K6135/ K6136/ K6137/ K6138/ K6139/ K6140/ K6141/ K6142/ K6143/ K6144/ K6122)

- Pathway: 510(k) (Traditional)
- Applicant: Shenzhen Yicai Health Technology Co., Ltd.
- Decided: Aug 21, 2025 after 160 days
- Product code: NUH (Stimulator, Nerve, Transcutaneous, Over-The-Counter)
- Device class: 2
- Regulation: 21 CFR 882.5890
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
No later device cites it as a predicate yet.
0 of 1 device in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA’s file for it is a 510(k) statement, which names no predicate.

## Indications for use
TENS: The device is designed to be used for temporary relief of pain associated with sore and aching muscles in the shoulder, waist, back, neck, upper extremities (arm), lower extremities (leg), abdomen and bottom due to strain from exercise or normal household work activities. EMS: The device is designed to be used to stimulate healthy muscles in order to improve and facilitate muscle performance. The device is designed to temporarily increase local blood circulation in healthy leg muscles.

Source page: https://510kreport.com/device/K250784
Methodology: https://510kreport.com/methodology