Safety Assessment of Low-Flow Oxygenation Device: Quasi-Experimental Study

Area of Science:

• Medical Devices
• Respiratory Support
• Clinical Engineering

Background:

• Positive End-Expiratory Pressure (PEEP) is crucial for respiratory support.
• Evaluating novel oxygenation devices is essential for improving patient care.
• Mask-based PEEP devices require assessment for efficacy and safety.

Purpose of the Study:

• To assess the feasibility and safety of the Oxygenation Device with Reservoir and Positive End-Expiratory Pressure (ODRPEEP).
• To analyze mask leakages and expiratory carbon dioxide retention with the ODRPEEP device.
• To determine the sealing effectiveness of the ODRPEEP mask.

Main Methods:

• A quasi-experimental pilot study involving eight volunteers.
• Two experiments were conducted to evaluate mask leaks using water vapor diffusion and thermal imaging.
• Safety was assessed by measuring carbon dioxide retention upon expiration.

Main Results:

• The ODRPEEP mask achieved an adequate seal at its tightest fit, but was not completely airtight.
• Dispersions (leaks) were primarily observed in the lower mask area, especially in individuals with beards, via thermal imaging and water vapor tests.
• The ODRPEEP device demonstrated only minor leaks.

Conclusions:

• The ODRPEEP device is feasible for use, offering a generally adequate mask seal.
• Minor leaks were identified, particularly influenced by facial hair, suggesting potential areas for design improvement.
• Further research may be warranted to optimize the mask seal for diverse user populations.