510(k) · Cleared
ClearedModel Ipd Oxygen Conserving Device
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Invacare Corp. · NFB Conserver, Oxygen
Cleared on Nov 22, 1995 after a 98-day review. FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known. 3 later devices descend from it.
- Decided
- Nov 22, 1995
- Review
- 98 days
- Class
- Class II
- Product code
- NFB
- Recalls
- None
- Predicates
- 0
3 later devices descend from it, 3 citing it directly.
- This deviceK953852 Model Ipd Oxygen Conserving DeviceInvacare Corp. · 1995
- Descendant · cites it directly · 2 of its ownK983601 Demand Oxygen Conserving Device, Docd, the DocMedical Electronic Devices, Inc. · 1998
- Descendant · cites it directly · 1 of its ownK992935 OCD2001Contemporary Products, Inc. · 2000
- Descendant · cites it directly · 0 of its ownK022865 6203Contemporary Products, Inc. · 2003
Most influential descendants
Showing 3 of 3 · See allView FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K953852 | Model Ipd Oxygen Conserving Device | Invacare Corp. | 1995 | — |
| +1 | K983601 | Demand Oxygen Conserving Device, Docd, the Doc | Medical Electronic Devices, Inc. | 1998 | — |
| +1 | K992935 | OCD2001 | Contemporary Products, Inc. | 2000 | — |
| +1 | K022865 | 6203 | Contemporary Products, Inc. | 2003 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1998 | 1 | 0 |
| 2000 | 1 | 0 |
| 2003 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), 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 K250322 Respond OC Conserving Regulator (130-0800)score 10.6 · 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?
FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known.
What descends from it? (3)
3 later devices cite it directly; ranked here by how many devices descend from each in turn.
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?
- Of its descendants, K983601 (Medical Electronic Devices, Inc., 1998) has gone furthest, with 2 descendants of its own.
How does its category compare?
All NFB devicesNFB Conserver, Oxygen: FDA decisions, review times, recalls and adverse event reports over 20 years.
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 | — |
https://510kreport.com/device/K953852 · printed Nov 4, 2026
Cite this page
510(k) Report. “K953852: Model Ipd Oxygen Conserving Device.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K953852
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Record history
- FDA decision record loaded May 2, 2026
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026