# K103392: Chad Therapeutic Evolution Electronic Oxygen Conserver

- Pathway: 510(k) (Special)
- Applicant: Inovo, Inc.
- Decided: Dec 17, 2010 after 28 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: 2 generations back to K003455 (2000). 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)
- K042142: Chad Therapeutics Lotus, Models OM-700 and OM-700S, Chad Therapeutics, Inc. (2004) Summary page 1.

## Most influential descendants
- K113111: Chad Therapeutic Evolution Electronic Oxygen Conserver with Motion (2011), 1 descendant of its own
- K220591: Proxima (2022), 0 descendants of its own

## Indications for use
The Chad Therapeutics Evolution Model OM-900 is intended for prescription use only, to be used as part of a portable oxygen delivery system for patients that require supplemental oxygen up to 7 liters per minute, in their home and for ambulatory use

Source page: https://510kreport.com/device/K103392
Methodology: https://510kreport.com/methodology