# K091757: Otc Tens for Arm and Leg Pain Relief, Model WL-2407

- Pathway: 510(k) (Traditional)
- Applicant: Well-Life Healthcare Limited
- Decided: Feb 5, 2010 after 234 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
Longest line of descent: 3 generations back to K940301 (1994). 5 ancestors in all.
6 later devices descend from it; 5 cite it directly.
0 of 12 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K033122: 5000Z System (Otc), Prizm Medical, Inc. (2004) Summary page 1.
- K060846: Therapeutic Massage Companion, Endurance Therapeutics (2007) Summary page 1.

## Most influential descendants
- K133723: Otc Patch (2014), 3 descendants of its own
- K121353: Mini Patch (2012), 1 descendant of its own
- K220524: Well-Life Mini TENS Stimulator (WL-23XXC/WL-23XXE Series) (2022), 0 descendants of its own
- K151479: EV-820 OTC Pain Relief TENS (2015), 0 descendants of its own
- K150681: Gemore Otc Tens (2015), 0 descendants of its own

## Indications for use
The OTC TENS for Arm & Leg Pain Relief/ model WL-2407 are intended for temporary relief of pain associated with sore and aching muscles in the upper and lower extremities (arm and/or leg) due to strain from exercise or normal household and work activities.

Source page: https://510kreport.com/device/K091757
Methodology: https://510kreport.com/methodology