# K070740: Chad Therapeutics Bonsai Model 800

- Pathway: 510(k) (Special)
- Applicant: Chad Therapeutics, Inc.
- Decided: May 7, 2007 after 52 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: 3 generations back to K963247 (1996). 5 ancestors in all.
1 later device descends from it; 1 cites it directly.
0 of 7 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K020475: Chad Therapeutics Oxypenumatic Cypress Model 511, Chad Therapeutics, Inc. (2002) Summary page 1.

## Most influential descendants
- K250322: Respond OC Conserving Regulator (130-0800) (2025), 0 descendants of its own

## Indications for use
The Chad Therapeutics Bonsai (modified Chad Therapeutics OXYPNEUMATIC CYPRESS Model 511) is intended for use in the same manner as the unmodified device, i.e., for prescription use only, to be used as part of a portable oxygen delivery system for patients that require supplemental oxygen in their home and for ambulatory use.

Source page: https://510kreport.com/device/K070740
Methodology: https://510kreport.com/methodology