# K050414: PLIX

- Pathway: 510(k) (Traditional)
- Applicant: Respironics, Inc.
- Decided: Apr 11, 2005 after 52 days
- Product code: BYJ (Unit, Liquid-Oxygen, Portable)
- Device class: 2
- Regulation: 21 CFR 868.5655
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 2 generations back to K933930 (1994). 2 ancestors in all.
2 later devices descend from it; 1 cites it directly.
0 of 5 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K993220: Puritan-Bennett Helios Portable Liquid Oxygen System, Puritan Bennett Corp. (1999) Summary page 1.

## Most influential descendants
- K072723: Respironics Golox (2008), 1 descendant of its own
- K081779: GOLOX-93 (2008), 0 descendants of its own

## Indications for use
The PLOX is intended to provide supplemental oxygen to patients who have difficulty extracting oxygen from the air that they breathe. The patients would normally receive oxygen via a nasal cannula. It is intended for ambulatory use inside and outside of the home. It is not intended to be life supporting or life sustaining. The device has no contraindications.

Source page: https://510kreport.com/device/K050414
Methodology: https://510kreport.com/methodology