# K090421: Model 350G Gas Conserver

- Pathway: 510(k) (Traditional)
- Applicant: Inspired Technologies, Inc.
- Decided: May 29, 2009 after 100 days
- Product code: NFB (Conserver, Oxygen)
- Device class: 2
- Regulation: 21 CFR 868.5905
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 4 generations back to K933930 (1994). 9 ancestors in all.
2 later devices descend from it; 2 cite it directly.
1 of 12 devices in its family (counting itself) has a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K020329: Devilbiss PD1000, Sunrise Medical Hhg, Inc. (2002) Summary page 1.
- K072011: Copd Liquid Oxygen Portable, Model 300P, Copd Partners, Inc. (2007) Summary page 1.
- K024023: Essex High Pressure (HP) Ocd and Essex Escort Pneumatic Conserver, Essex Medical Systems Plus (2003) Summary page 1.

## Most influential descendants
- K221014: Effortless Oxygen Conserver System Models Effortless Pro and Effortless Mobile (2022), 0 descendants of its own
- K200401: Apogee (2020), 0 descendants of its own

## Indications for use
The Inspired Technologies 350G Gas Conserver is intended as a delivery device for medial-grade oxygen from high-pressure oxygen cylinders. This is an ambulatory device, which allows patients to ambulate longer than they would with a continuous flow regulator on the same cylinder. The 350G Gas Conserver is intended to be used in the hospital, healthcare facilities, or home care environments.

Source page: https://510kreport.com/device/K090421
Methodology: https://510kreport.com/methodology