# K173856: Express 4 Sleep appliance/CPAP Sidekick appliance

- Pathway: 510(k) (Traditional)
- Applicant: Moses Appliances, LLC
- Decided: Jun 26, 2018 after 188 days
- Product code: LRK (Device, Anti-Snoring)
- Device class: 2
- Regulation: 21 CFR 872.5570
- 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. FDA’s file for it is a 510(k) statement, which names no predicate.

## Indications for use
Express 4 Sleep appliance / CPAP Sidekick appliance is intended for use on adult patients 18 years of age and older for the temporary or trial treatment of snoring and mild to moderate obstructive sleep apnea. Express 4 Sleep appliance / CPAP Sidekick appliance is intended to be used for a maximum of 30 days.

Source page: https://510kreport.com/device/K173856
Methodology: https://510kreport.com/methodology