# K992659: O2N Demand-II, Victor Model Ocpr-II

- Pathway: 510(k) (Special)
- Applicant: Thermadyne Holings Corp.
- Decided: Sep 3, 1999 after 25 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: 1 generation back to K963247 (1996). 1 ancestor in all.
8 later devices descend from it; 2 cite it directly.
0 of 10 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K963247: Victor Model Ocpr Oxygen Conserving Pressure Regulator, Thermadyne Holings Corp. (1996) Summary page 3.

## Most influential descendants
- K031983: Inovo, Inc, Economizer Conserving Regulator (2003), 4 descendants of its own
- K020475: Chad Therapeutics Oxypenumatic Cypress Model 511 (2002), 3 descendants of its own
- K070740: Chad Therapeutics Bonsai Model 800 (2007), 1 descendant of its own
- K061785: Cyl-Fil Oxygen System (2006), 1 descendant of its own
- K250322: Respond OC Conserving Regulator (130-0800) (2025), 0 descendants of its own

## Indications for use
The 02n Demand-II is intended as an ‘oxygen conserving pressure regulator for ambulatory patients. This is the same intended use as the predicated unit (K963247).

Source page: https://510kreport.com/device/K992659
Methodology: https://510kreport.com/methodology