# P190021: ReActiv8 Implantable Neurostimulation System

- Pathway: PMA
- Applicant: Mainstay Medical Limited
- Decided: Jun 16, 2020 after 292 days
- Product code: QLK (Stimulator, Neuromuscular, Lower Back Muscles, Totally Implanted For Pain Relief)
- Device class: 3
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
No later device cites it as a predicate yet.
0 of 1 device in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. PMA decisions do not claim a predicate device.

Source page: https://510kreport.com/device/P190021
Methodology: https://510kreport.com/methodology