510(k) · Cleared
ClearedCONTEC Oxygen Concentrator
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Contec Medical System Co., Ltd. · CAW Generator, Oxygen, Portable
Cleared on Jan 10, 2019 as substantially equivalent to K162433 (Oxus, Inc., 2017) after a 286-day review. Its family tree reaches back 3 generations to 2002.
- Decided
- Jan 10, 2019
- Review
- 286 days
- Class
- Class II
- Product code
- CAW
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 3 generations to K020324 (2002). No later device cites it as a predicate yet.
- Root · 3 generations backK020324 Lifestyle Oxygen ConcentratorAirsep Corp. · 2002 · Recalled
- 2 generations backK073242 Portable Oxygen Concentrator, Model RS-00400Delphi Medical Systems · 2008
- 1 generation backK162433 GCE Zen-O Portable Oxygen ConcentratorOxus, Inc. · 2017 · Recalled
- This deviceK180837 CONTEC Oxygen ConcentratorContec Medical System Co., Ltd. · 2019
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −3 | K020324 | Lifestyle Oxygen Concentrator | Airsep Corp. | 2002 | 3 |
| −2 | K073242 | Portable Oxygen Concentrator, Model RS-00400 | Delphi Medical Systems | 2008 | — |
| −1 | K162433 | GCE Zen-O Portable Oxygen Concentrator | Oxus, Inc. | 2017 | 1 |
| 0 (this device) | K180837 | CONTEC Oxygen Concentrator | Contec Medical System Co., Ltd. | 2019 | — |
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 CAW? 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 CAW device
- #1 K230052 Inogen Rove 6score 29.9 · 2 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 |
|---|---|---|---|
| * | K162433 | GCE Zen-O Portable Oxygen ConcentratorSummary page 5…8- 1 K180837 4. Identification of Predicate Device(s) Predicate Device: 510(k) Number: K162433 Product Name: GCE Zen-O™ Portable Oxygen Concentrator Model Name:RS-00500 Manufacturer: Oxus Inc. 5. Ide… | 2017 |
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 17 years and passes through 4 companies; a new generation was cleared every 5.8 years on median.
- 2 of the 3 ancestors have a recall of any class.
- 1 other device also cites its predicate K162433.
How does its category compare?
All CAW devicesCAW Generator, Oxygen, Portable: FDA decisions, review times, recalls and adverse event reports over 20 years. 2019, this device’s year, is highlighted.
FDA decisions per year · CAW
12in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · CAW
178in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · CAW
1in 2025
Class I (1 since 2007) Class II/III not classified
Adverse event reports per year · CAW
611in 2025
MAUDE reports naming product code CAW, 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 | 6 | 143 | 1 | 23 |
| 2008 | 11 | 90 | 3 | 25 |
| 2009 | 8 | 193 | 2 | 43 |
| 2010 | 5 | 133 | 0 | 48 |
| 2011 | 6 | 174 | 1 | 167 |
| 2012 | 5 | 148 | 0 | 395 |
| 2013 | 2 | — | 2 | 2,309 |
| 2014 | 6 | 277 | 2 | 24,538 |
| 2015 | 1 | — | 0 | 18,973 |
| 2016 | 1 | — | 1 | 3,167 |
| 2017 | 1 | — | 1 | 107 |
| 2018 | 3 | 203 | 0 | 116 |
| 2019 | 2 | — | 2 | 120 |
| 2020 | 5 | 224 | 1 | 125 |
| 2021 | 2 | — | 0 | 194 |
| 2022 | 4 | 458 | 2 | 305 |
| 2023 | 8 | 261 | 0 | 357 |
| 2024 | 2 | — | 5 (1) | 450 |
| 2025 | 12 | 178 | 1 | 611 |
| 2026 | 6 | 260 | 0 | — |
What is it indicated for?
CONTEC™ Oxygen Concentrator, OC3D, is intended to provide supplemental oxygen in a home, institutional environment. The device is only used for adult and prescription use only.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K180837 · printed Nov 5, 2026
Cite this page
510(k) Report. “K180837: CONTEC Oxygen Concentrator.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K180837
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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