510(k) · Cleared
ClearedOptiflow+ Nasal Cannula - Small (OPT942); Optiflow+ Nasal Cannula - Medium (OPT944); Optiflow+ Nasal Cannula - Large (OPT946); Optiflow+ Nasal Cannula Small (MYOPT9SMALL); Optiflow+ Nasal Cannula Medium (MYOPT9MEDIUM); Optiflow+ Nasal Cannula Large (MYOPT9LARGE)
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Fisher & Paykel Healthcare, Ltd. · BTT Humidifier, Respiratory Gas, (Direct Patient Interface)
Cleared on Jun 25, 2025 as substantially equivalent to K162553 (Fisher & Paykel Healthcare, 2018) after a 29-day review. Its family tree reaches back 10 generations to 1992.
- Decided
- Jun 25, 2025
- Review
- 29 days
- Class
- Class II
- Product code
- BTT
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 10 generations to K913368 (1992). 22 ancestors in all, the oldest K902506 (1991). No later device cites it as a predicate yet.
- Root · 10 generations backK913368 Models MR700/MR720/MR730 Dual Servo Resp Humid AccFisher & Paykel Electronics, Ltd. · 1992
- 6 generations between
- 3 generations backK121975 Airvo Humidifier Myairo HumidifierFisher & Paykel Healthcare, Ltd. · 2013
- 2 generations backK131895 Airvo 2 Humidifier, Myairvo 2 HumidifierFisher & Paykel Healthcare, Ltd. · 2013 · Recalled
- 1 generation backK162553 AirSpiral Heated Breathing TubeFisher & Paykel Healthcare · 2018
- This deviceK251611 Optiflow+ Nasal Cannula - Small (OPT942); Optiflow+ Nasal Cannula -…Fisher & Paykel Healthcare, Ltd. · 2025
Show all 10 generations
- Root · 10 generations backK913368 Models MR700/MR720/MR730 Dual Servo Resp Humid AccFisher & Paykel Electronics, Ltd. · 1992
- 9 generations backK953392 HC500 Servo-Controlled Heated Respiratory Humidifier (& Accessories)Fisher & Paykel Electronics, Ltd. · 1996
- 8 generations backK983112 Respiratory Humidifier, Model # MR850Fisher & Paykel Healthcare, Ltd. · 1998 · Recalled
- 7 generations backK020332 Respiratory Humidifier, Model MR850Fisher & Paykel Healthcare, Ltd. · 2003 · Recalled
- 6 generations backK033710 MR850 Respiratory Humidifier, Model MR850JHUFisher & Paykel Healthcare, Ltd. · 2004
- 5 generations backK073706 Respiratory Humidifier, Model MR850Fisher & Paykel Healthcare, Ltd. · 2008
- 4 generations backK092846 Airvo Series HumidifiersFisher & Paykel Healthcare, Ltd. · 2010
- 3 generations backK121975 Airvo Humidifier Myairo HumidifierFisher & Paykel Healthcare, Ltd. · 2013
- 2 generations backK131895 Airvo 2 Humidifier, Myairvo 2 HumidifierFisher & Paykel Healthcare, Ltd. · 2013 · Recalled
- 1 generation backK162553 AirSpiral Heated Breathing TubeFisher & Paykel Healthcare · 2018
- This deviceK251611 Optiflow+ Nasal Cannula - Small (OPT942); Optiflow+ Nasal Cannula -…Fisher & Paykel Healthcare, Ltd. · 2025
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −10 | K913368 | Models MR700/MR720/MR730 Dual Servo Resp Humid Acc | Fisher & Paykel Electronics, Ltd. | 1992 | — |
| −9 | K953392 | HC500 Servo-Controlled Heated Respiratory Humidifier (& Accessories) | Fisher & Paykel Electronics, Ltd. | 1996 | — |
| −8 | K983112 | Respiratory Humidifier, Model # MR850 | Fisher & Paykel Healthcare, Ltd. | 1998 | 5 |
| −7 | K020332 | Respiratory Humidifier, Model MR850 | Fisher & Paykel Healthcare, Ltd. | 2003 | 1 |
| −6 | K033710 | MR850 Respiratory Humidifier, Model MR850JHU | Fisher & Paykel Healthcare, Ltd. | 2004 | — |
| −5 | K073706 | Respiratory Humidifier, Model MR850 | Fisher & Paykel Healthcare, Ltd. | 2008 | — |
| −4 | K092846 | Airvo Series Humidifiers | Fisher & Paykel Healthcare, Ltd. | 2010 | — |
| −3 | K121975 | Airvo Humidifier Myairo Humidifier | Fisher & Paykel Healthcare, Ltd. | 2013 | — |
| −2 | K131895 | Airvo 2 Humidifier, Myairvo 2 Humidifier | Fisher & Paykel Healthcare, Ltd. | 2013 | 2 |
| −1 | K162553 | AirSpiral Heated Breathing Tube | Fisher & Paykel Healthcare | 2018 | — |
| 0 (this device) | K251611 | Optiflow+ Nasal Cannula - Small (OPT942); Optiflow+ Nasal Cannula - Medium… | Fisher & Paykel Healthcare, Ltd. | 2025 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1998 | 1 | 0 |
| 2000 | 1 | 0 |
| 2004 | 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 BTT? 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 BTT device
- #1 K222197 F&P Optiflow Junior 2/2+ Nasal Cannula…score 16.8 · 10 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 |
|---|---|---|---|
| * | K162553 | AirSpiral Heated Breathing TubeSummary page 5…868.5450) Product Code BTT III. PREDICATE DEVICE • Predicate device: o F&P Optiflow+ Nasal Cannula range, K162553 IV. DEVICE DESCRIPTION The F&P Optiflow+ Nasal Cannula range is a nasal cannula interface for use with a respiratory… | 2018 |
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 33 years and passes through 3 companies; a new generation was cleared every 4.0 years on median.
- 3 of the 22 ancestors have a recall of any class.
- 7 other devices also cite its predicate K162553.
How does its category compare?
All BTT devicesBTT Humidifier, Respiratory Gas, (Direct Patient Interface): FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, this device’s year, is highlighted.
FDA decisions per year · BTT
4in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · BTT
104in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · BTT
1in 2025
Class I (4 since 2007) Class II/III not classified
Adverse event reports per year · BTT
1,743in 2025
MAUDE reports naming product code BTT, 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 | 73 | 1 | 365 |
| 2008 | 4 | 199 | 1 | 456 |
| 2009 | 1 | — | 0 | 558 |
| 2010 | 4 | 113 | 2 | 562 |
| 2011 | 3 | 116 | 1 | 665 |
| 2012 | 2 | — | 0 | 583 |
| 2013 | 6 | 171 | 0 | 718 |
| 2014 | 7 | 231 | 5 (4) | 718 |
| 2015 | 1 | — | 0 | 670 |
| 2016 | 3 | 157 | 0 | 1,094 |
| 2017 | 3 | 303 | 0 | 1,007 |
| 2018 | 2 | — | 0 | 918 |
| 2019 | 1 | — | 0 | 894 |
| 2020 | 2 | — | 0 | 1,188 |
| 2021 | 2 | — | 0 | 1,510 |
| 2022 | 3 | 290 | 0 | 749 |
| 2023 | 7 | 258 | 0 | 716 |
| 2024 | 7 | 219 | 0 | 501 |
| 2025 | 4 | 104 | 1 | 1,743 |
| 2026 | 4 | 184 | 1 | — |
What is it indicated for?
OPT94X Model: The F&P Optiflow+ is a nasal cannula patient interface for use with specified respiratory gas humidifiers to treat spontaneously breathing pediatric (3 years and older) to adult patients who would benefit from receiving high flow warmed and humidified respiratory gases to the upper airway. This device is designed to be used in a hospital, sub-acute facility or long-term care facility by appropriately qualified healthcare professionals.…
Read the full statement (146 words)
OPT94X Model:
The F&P Optiflow+ is a nasal cannula patient interface for use with specified respiratory gas humidifiers to treat spontaneously breathing pediatric (3 years and older) to adult patients who would benefit from receiving high flow warmed and humidified respiratory gases to the upper airway.
This device is designed to be used in a hospital, sub-acute facility or long-term care facility by appropriately qualified healthcare professionals.
MYOPT9X Model:
The F&P Optiflow+ is a nasal cannula patient interface for use with specified respiratory gas humidifiers to treat spontaneously breathing pediatric (3 years and older) to adult patients who would benefit from receiving high flow warmed and humidified respiratory gases to the upper airway.
This device is designed to be used in a long-term care facility by appropriately qualified healthcare professionals, or in the home by lay users operating the device as prescribed by a healthcare professional.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K251611 · printed Nov 6, 2026
Cite this page
510(k) Report. “K251611: Optiflow+ Nasal Cannula - Small (OPT942); Optiflow+ Nasal Cannula - Medium (OPT944); Optiflow+ Nasal Cannula - Large (OPT946); Optiflow+ Nasal Cannula Small (MYOPT9SMALL); Optiflow+ Nasal Cannula Medium (MYOPT9MEDIUM); Optiflow+ Nasal Cannula Large (MYOPT9LARGE).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K251611
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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