# K113037: Pain-Aid

- Pathway: 510(k) (Traditional)
- Applicant: Pdi Works, LLC
- Decided: Mar 1, 2012 after 141 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 K881114 (1988). 10 ancestors in all.
33 later devices descend from it; 1 cites it directly.
0 of 44 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K060846: Therapeutic Massage Companion, Endurance Therapeutics (2007) Summary page 1.
- K061650: Select Tens, Model 4600S, Empi (2007) Summary page 1.

## Most influential descendants
- K131159: Smartrelief (2013), 32 descendants of its own
- K153704: Strive (2016), 24 descendants of its own
- K170903: Compex Wireless USA (2017), 10 descendants of its own
- K182203: JKH Stimulator Plus (2019), 7 descendants of its own
- K191151: JKH Stimulator Plus (2019), 4 descendants of its own

## Indications for use
To be used for temporary relief of pain associated with sore and aching muscles in the upper and lower back, and upper and lower extremities due to strain from exercise or normal household and work activities. To be used for the symptomatic relief and management of chronic, intractable pain and relief of pain associated with arthritis.

Source page: https://510kreport.com/device/K113037
Methodology: https://510kreport.com/methodology