# K010389: Chad Therapeutics Oxymatic Model 401 and Oxymatic Model 411

- Pathway: 510(k) (Special)
- Applicant: Chad Therapeutics, Inc.
- Decided: Mar 23, 2001 after 42 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
No predicates in its family tree.
3 later devices descend from it; 1 cites it directly.
0 of 4 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA has not posted a summary or statement for it, so its predicates are not known.

## Most influential descendants
- K033364: Chad Therapeutics Sage (2004), 2 descendants of its own
- K113111: Chad Therapeutic Evolution Electronic Oxygen Conserver with Motion (2011), 1 descendant of its own
- K220591: Proxima (2022), 0 descendants of its own

Source page: https://510kreport.com/device/K010389
Methodology: https://510kreport.com/methodology