# K123075: Buttock Muscle Stimulator Model WL-2413B; Buttock Muscle Stimulator Mode WL-2413E

- Pathway: 510(k) (Abbreviated)
- Applicant: Well-Life Healthcare Limited
- Decided: Jul 11, 2013 after 283 days
- Product code: NGX (Stimulator, Muscle, Powered, For Muscle Conditioning)
- Device class: 2
- Regulation: 21 CFR 890.5850
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 5 generations back to K010335 (2001). 7 ancestors in all.
2 later devices descend from it; 2 cite it directly.
0 of 10 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K092142: Sport-Elec Body Control System BS, Sport-Elec (2010) Summary page 1.

## Most influential descendants
- K151722: Slim UP ULTRA (2016), 0 descendants of its own
- K143737: EM25 - glute toning device (2015), 0 descendants of its own

## Indications for use
The Bullock Muscle Stimulator, model WL-2413E, is intended for use by healthy persons to apply transcutaneous electrical muscle stimulation(EMS) through skin contact electrode for the purpose of improvement of muscle tone of the buttocks muscles..

Source page: https://510kreport.com/device/K123075
Methodology: https://510kreport.com/methodology