Single-use High Flow Nasal Cannula with Ethylene Oxide Sterilization and Universal Connector for Oxygen Therapy

High-Flow Oxygen Therapy With Face Adhensive Sticker

Abstract

High-flow oxygen therapy (HFOT) is a respiratory support system, through which high flows of humidified and heated gas are delivered to hypoxemic patients. Several mechanisms explain how HFOT improves arterial blood gases and enhances patients’ comfort. Some mechanisms

 are well understood, but others are still unclear and under investigation. HFOT is an interesting oxygen-delivery modality in perioperative medicine that has many clinical applications in the intensive care unit (ICU) and the operating room (OR). The purpose of this article was to review the

literature for a comprehensive understanding of HFOT in the perioperative period, as well as its uses in procedural sedation. This review will focus on the HFOT definition, its physiological benefits, and their mechanisms, its clinical uses in anesthesia, and when it is contraindicated.

Product Data

TECHNICAL SPECIFICATIONS:

Lightness: Supports patient comfort and compliance.
Twist-resistant: Provides a smooth airflow for patient safety.
Universal connector: Compatible with most heating wire patient circuits.
Softer nose tip: Provides maximum comfort for patients.
More Flexible: The fully adjustable headband fits comfortably over the patient's ears, and the interface tube allows for comfortable and free movement.

Advantage

The advantages of employing HFOT are manifold. Firstly, when administered through nasal cannulas, this method provides a simple and comfortable means of delivering oxygen, eliminating the need for a face mask. This allows patients to eat, drink, and speak while receiving therapy, enhancing overall convenience. Additionally, HFOT confers various benefits to the respiratory system, some of which have been extensively studied, while others are not yet fully understood.

One of the primary benefits is the delivery of oxygen at high flow rates (up to 60 L/min), which effectively reduces the volume of anatomical dead space by flushing out exhaled carbon dioxide from the upper airways. This minimizes the re-breathing of carbon dioxide (CO₂)  Furthermore, the high flow rates prevent significant mixing with room air, ensuring a closer match between the supplied and designated fraction of inspired oxygen (FiO₂) . Moreover, it promotes an enhanced breathing pattern characterized by a lowered respiratory rate and an increased tidal volume . This effect combined with the preconditioned oxygen, which is preheated to 37 °C and humidified to a level of 44 mg H₂O/L (100% relative humidity) by the nasal cannula device, eases resistance during inhalation, resulting in decreased respiratory effort and lower metabolic demand on the patient. Consequently, the work of breathing (WOB) is minimized

Additionally, while HFOT is not a closed system, the substantial flow rate it generates restricts air outflow during exhalation and elevates airway pressure  This leads to a greater volume of air remaining in the lungs post exhalation compared to low-flow oxygen therapy. The application of positive pressure assists in the recruitment of alveoli and lessens the mismatch between ventilation and perfusion

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