510(k) · Cleared
ClearedVianox Delivery System, Model II
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Pulmonox Medical, Inc. · MRN Apparatus, Nitric Oxide Delivery
Cleared on Jan 26, 2004 after a 53-day review. The FDA summary names its predicate without a number.
- Decided
- Jan 26, 2004
- Review
- 53 days
- Class
- Class II
- Product code
- MRN
- Recalls
- None
- Predicates
- 0
The FDA summary names its predicate without a number.
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 MRN? 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 MRN device
- #1 K242374 ULSPIRA TS™ Nitric Oxide Therapy Systemscore 12.6 · 14 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 |
|---|---|---|---|
| * | — | ViaNOx Delivery System Named without a submission number |
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.
How does its category compare?
All MRN devicesMRN Apparatus, Nitric Oxide Delivery: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · MRN
2in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · MRN
566in 2023
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · MRN
2in 2025
Class I (2 since 2007) Class II/III not classified
Adverse event reports per year · MRN
155in 2025
MAUDE reports naming product code MRN, 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 | 2 | — | 0 | 3 |
| 2008 | 2 | — | 0 | 9 |
| 2009 | 1 | — | 0 | 10 |
| 2010 | 2 | — | 2 | 155 |
| 2011 | 2 | — | 0 | 55 |
| 2012 | 3 | 117 | 0 | 24 |
| 2013 | 2 | — | 0 | 32 |
| 2014 | 0 | — | 1 | 79 |
| 2015 | 1 | — | 0 | 156 |
| 2016 | 0 | — | 0 | 94 |
| 2017 | 0 | — | 0 | 106 |
| 2018 | 1 | — | 0 | 138 |
| 2019 | 0 | — | 0 | 144 |
| 2020 | 3 | 84 | 0 | 199 |
| 2021 | 0 | — | 0 | 221 |
| 2022 | 1 | — | 0 | 115 |
| 2023 | 4 | 566 | 1 | 99 |
| 2024 | 2 | — | 0 | 138 |
| 2025 | 2 | — | 2 (2) | 155 |
| 2026 | 0 | — | 2 | — |
What is it indicated for?
The ViaNOx Delivery System is a nitric oxide administration device intended to add nitric oxide to gases that are to be breathed by a patient, and to be used in conjunction with a ventilator or other breathing system. The ViaNOx includes a nitric oxide, nitrogen dioxide, and oxygen monitor intended to monitor the concentration of these gases in respiratory gas mixtures during administration of nitric oxide.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K033779 · printed Nov 6, 2026
Cite this page
510(k) Report. “K033779: Vianox Delivery System, Model II.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K033779
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Page last updated Nov 3, 2026