# K162479: Smart Pain Reliever, Model LT5019

- Pathway: 510(k) (Traditional)
- Applicant: Shenzhen Dongdixin Technology Co., Ltd.
- Decided: Feb 8, 2017 after 155 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: 5 generations back to K881114 (1988). 16 ancestors in all.
3 later devices descend from it; 1 cites it directly.
0 of 20 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K151035: PulseRelief, Philips Consumer Lifestyle (2015) Summary page 5.
- K131159: Smartrelief, Chattem, Inc. (2013) Summary page 5.
- K083140: Compex Sport Plus, Chattanooga Group (2009) Summary page 5.

## Most influential descendants
- K173462: Wireless Pain Relieve Device Model: LT5018C (2017), 2 descendants of its own
- K181102: ThermaCare Quick Therapy TENS (2018), 0 descendants of its own
- K180331: Wireless Pain Relieve Device (2018), 0 descendants of its own

## 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) and lower extremities (leg) due to strain from exercise or normal household work activities. And to be used for the symptomatic relief and management of chronic, intractable pain and relief of pain associated with arthritis. EMS: The device is designed to be used for stimulate healthy muscles in order to improve and facilitate muscle performance.

Source page: https://510kreport.com/device/K162479
Methodology: https://510kreport.com/methodology