# K022855: Slendertone Flex Bottom & Thigh Toning System, Type 511

- Pathway: 510(k) (Traditional)
- Applicant: Bio-Medical Research, Ltd.
- Decided: Mar 6, 2003 after 191 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: 1 generation back to K010335 (2001). 1 ancestor in all.
53 later devices descend from it; 2 cite it directly.
0 of 55 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K010335: Slendertone Flex, Model, 512, Bio-Medical Research, Ltd. (2001)

## Most influential descendants
- K070142: Slendertone System Abs, Models 390, E10, X10; Slendertone System Shorts, Models 390, E20 (2007), 52 descendants of its own
- K092142: Sport-Elec Body Control System BS (2010), 26 descendants of its own
- K072553: System-Arms, Model 390,E60 (2007), 25 descendants of its own
- K091865: Sport-Elec Body Control System (2009), 23 descendants of its own
- K092476: Sport-Elec Body Control System, Model 4M (2010), 22 descendants of its own

## Indications for use
Strengthening,toning and firming of the bottom and thigh reglon

Source page: https://510kreport.com/device/K022855
Methodology: https://510kreport.com/methodology