An evolution in our understanding of high flow therapy over two decades has resulted in the asymmetric F&P Optiflow DuetTM interface.
Using an asymmetric design, i.e., one small prong and one large we are able to amplify key mechanisms of action, to not only deliver but enhance high flow therapy.1
Asymmetry… a story of evolutionary advantage
Just as F&P Optiflow™ Duet capitalizes on unexpected design, these critters have evolved to embrace asymmetry as their superpower.
Fist pump for the lemon-yellow fiddler crab –he's a lover AND a fighter.
Perfectly imperfect, the cockeyed squid has mastered the art of seeing in two places at once.
High flow therapy - enhanced.
The asymmetric design provides greater total occlusion which increases pressure1.
Dead space clearance is increased by creating unidirectional flow which purges expired gas1.
Pressure.1 Dead Space Clearance.1 Comfort.2
This short video explains the key mechanisms of action of high flow, driven by flow and humidification.
Why is the Reduction of Dead Space so important?
Learn a bit more about one of the least understood nasal high flow Mechanisms of Action.
The Optiflow Duet interface range
Small OPT962
Medium OPT964
Large OPT966
Enquire about the F&P Optiflow Duet interface
If you have an enquiry about our products, please provide the following information so a Fisher & Paykel Healthcare representative can contact you. For further details on how this information will be used, see below or go to our privacy statement.- Tatkov S, Rees M, Gulley A, et al. Asymmetrical nasal high flow ventilation improves clearance of CO, from the anatomical dead space and increases positive airway pressure. J Appl Physiol. 2023; 134(2):365-377.
- Boscolo A, Pettenuzzo T, Zarantonello F, et al. Asymmetrical high-flow nasal cannula performs similarly to standard interface in patients with acute hypoxemic post-extubation respiratory failure: a pilot study. BMC Pulm Med. 024; 24:21. Study conducted on patients with post-extubation hypoxemic acute respiratory failure.
F&P, Optiflow and Duet are trademarks of Fisher & Paykel Healthcare Limited. DPM-1911