Description

The OPTIFLOW+ DUET ASYMMETRIC NASAL CANNULA by Fisher & Paykel Healthcare is an advanced high flow nasal cannula (HFNC) designed to provide effective respiratory support for patients experiencing mild-to-moderate hypoxemic respiratory failure. Its innovative asymmetric design features one small prong and one large prong, enhancing the total cross-sectional area by 30–40% compared to traditional symmetrical cannulas.

Key Features

• Asymmetric Prong Design: This unique configuration enhances positive airway pressure and improves dead space clearance, facilitating more efficient CO₂ washout from the upper airway.
• Evaqua™ Technology: Minimizes mobile condensate formation within the circuit, ensuring consistent performance.
• Compatibility: Equipped with a three-way connector, it is compatible with F&P circuits, Airvo™ and F&P 850 systems, and myAirvo Series humidifiers.

Comfort and Fit

• Adjustable Head Strap: Provides a secure and comfortable fit, complemented by a head strap clip that removes the need for a lanyard.
• Soft Cheek Pads: Enhance stability and reduce facial pressure for improved comfort.
• Contoured Prongs: Offer a softer, more comfortable fit within the nares.

Usage and Maintenance

• Single-Patient Use: Designed for disposable use, with potential for multiple uses up to 30 days with proper cleaning.
• No Maintenance Required: The device requires no maintenance or external power, relying on the flow driver for energy.

Intended Use

The cannula is intended for delivering humidified high flow oxygen therapy to patients with acute respiratory failure or hypoxemia. It is suitable for use in various settings, including hospitals, long-term care facilities, and home care, as prescribed. The device is designed to work with high-flow devices such as F&P Airvo 2, Airvo 3, and F&P 850, requiring a humidifier and sterile water.

Physiological Benefits

• Enhanced Ventilatory Efficiency: Reduces minute ventilation and the work of breathing compared to conventional HFNC interfaces.
• Potential PEEP Increase: May improve patient comfort and CO₂ clearance, especially at higher flow rates.
• Oxygenation Impact: Generally does not affect oxygenation, lung compliance, or end-expiratory lung impedance, though it may increase end-expiratory lung volume in some patients.

Size and Flow Range

Available in three sizes—Small (OPT962), Medium (OPT964), and Large (OPT966)—with a flow range of 10–60 L/min. The device is intended for single-patient use with a maximum duration of 14 days per patient, extendable to 30 days with proper cleaning.

Regulatory Compliance

The OPTIFLOW+ DUET ASYMMETRIC NASAL CANNULA is a CE-marked, Class IIa medical device with market approval in Australia, Canada, and the EU. It complies with WHO technical specifications for nasal cannula consumables and interfaces.

Distribution and Support

Since 2021, over 10,000 units have been distributed in more than 100 countries. Fisher & Paykel Healthcare provides free training and education to support the effective use of this device.