# K050592: Somnomed Mas Rxa

- Pathway: 510(k) (Traditional)
- Applicant: Somnomed, Ltd.
- Decided: Jul 12, 2005 after 126 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
Longest line of descent: 3 generations back to K882303 (1989). 4 ancestors in all.
86 later devices descend from it; 17 cite it directly.
0 of 91 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K042161: Anti-Snoring/Sleep Apnea Device, Rj & VK Bird Pty, Ltd. (2004) Summary page 1.

## Most influential descendants
- K073004: Somnomed  Bflex (2008), 32 descendants of its own
- K103076: Dynaflex (2011), 29 descendants of its own
- K121340: Somnodent G2 (2012), 18 descendants of its own
- K130130: Atg/SM-Osa Appliances (2013), 17 descendants of its own
- K130558: Somnodent Herbst; Classic, Flex (2013), 16 descendants of its own

## Indications for use
The SomnoMed MAS RxA is intended to reduce night time snoring and mild to moderate obstructive sleep apnea (OSA) in adults.

Source page: https://510kreport.com/device/K050592
Methodology: https://510kreport.com/methodology