510(k) · Cleared
ClearedRespond OC Conserving Regulator (130-0800)
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Responsive Respiratory · NFB Conserver, Oxygen
Cleared on Jul 24, 2025 as substantially equivalent to K070740 (Chad Therapeutics, Inc., 2007) after a 170-day review. Its family tree reaches back 4 generations to 1996.
- Decided
- Jul 24, 2025
- Review
- 170 days
- Class
- Class II
- Product code
- NFB
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 4 generations to K963247 (1996). 6 ancestors in all. No later device cites it as a predicate yet.
- Root · 4 generations backK963247 Victor Model Ocpr Oxygen Conserving Pressure RegulatorThermadyne Holings Corp. · 1996
- 3 generations backK992659 O2N Demand-II, Victor Model Ocpr-IIThermadyne Holings Corp. · 1999
- 2 generations backK020475 Chad Therapeutics Oxypenumatic Cypress Model 511Chad Therapeutics, Inc. · 2002
- 1 generation backK070740 Chad Therapeutics Bonsai Model 800Chad Therapeutics, Inc. · 2007
- This deviceK250322 Respond OC Conserving Regulator (130-0800)Responsive Respiratory · 2025
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −4 | K963247 | Victor Model Ocpr Oxygen Conserving Pressure Regulator | Thermadyne Holings Corp. | 1996 | — |
| −3 | K992659 | O2N Demand-II, Victor Model Ocpr-II | Thermadyne Holings Corp. | 1999 | — |
| −2 | K020475 | Chad Therapeutics Oxypenumatic Cypress Model 511 | Chad Therapeutics, Inc. | 2002 | — |
| −1 | K070740 | Chad Therapeutics Bonsai Model 800 | Chad Therapeutics, Inc. | 2007 | — |
| 0 (this device) | K250322 | Respond OC Conserving Regulator (130-0800) | Responsive Respiratory | 2025 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2001 | 2 | 0 |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in NFB? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new NFB device
- #1 K220591 Proximascore 5.4 · 4 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (1)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K070740 | Chad Therapeutics Bonsai Model 800Summary page 5…e: NFB CFR 21 CFR 868.5905 Proprietary or Trade Name: Chad Therapeutics Bonsai Model 800 – K070740 Classification Name: Conserver, Oxygen Product Code: NFB CFR… | 2007 |
What descends from it?
No later submission names this one as a predicate yet.
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 29 years and passes through 3 companies; a new generation was cleared every 4.8 years on median.
- 1 of the 6 ancestors has a recall of any class.
How does its category compare?
All NFB devicesNFB Conserver, Oxygen: FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, this device’s year, is highlighted.
FDA decisions per year · NFB
1in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · NFB
Too few NFB 510(k)s in any year since 2007 to give a median.
Recalls per year · NFB
3in 2007
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · NFB
8in 2025
MAUDE reports naming product code NFB, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 1 | — | 3 | 3 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 1 | — | 0 | 0 |
| 2010 | 1 | — | 0 | 0 |
| 2011 | 1 | — | 0 | 1 |
| 2012 | 0 | — | 0 | 3 |
| 2013 | 1 | — | 0 | 5 |
| 2014 | 0 | — | 0 | 2 |
| 2015 | 0 | — | 0 | 4 |
| 2016 | 1 | — | 0 | 0 |
| 2017 | 0 | — | 0 | 9 |
| 2018 | 0 | — | 0 | 0 |
| 2019 | 0 | — | 0 | 0 |
| 2020 | 1 | — | 0 | 3 |
| 2021 | 0 | — | 0 | 2 |
| 2022 | 2 | — | 0 | 1 |
| 2023 | 0 | — | 0 | 4 |
| 2024 | 0 | — | 0 | 1 |
| 2025 | 1 | — | 0 | 8 |
| 2026 | 0 | — | 0 | — |
What is it indicated for?
The Respond OC Conserving Regulator (130-0800) is intended 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. It may also be used to deliver a constant flow of oxygen to the patient.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K250322 · printed Nov 6, 2026
Cite this page
510(k) Report. “K250322: Respond OC Conserving Regulator (130-0800).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K250322
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026