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Performance of venturi oxygen delivery devices
Anaesthesia and Intensive Care
|November 1, 1980
Summary
Disposable oxygen masks from five manufacturers were tested. Medishield and McGaw blenders demonstrated superior accuracy and adequate flow, with Medishield showing stable oxygen concentration delivery across various inflows.
Area of Science:
- Medical Devices
- Respiratory Therapy
- Biomedical Engineering
Background:
- Disposable oxygen masks are crucial for delivering supplemental oxygen.
- Oxygen blenders regulate the concentration of delivered oxygen.
- Accurate and reliable oxygen delivery is essential for patient care.
Purpose of the Study:
- To evaluate the accuracy and performance of oxygen blenders in disposable oxygen masks.
- To compare the delivered oxygen concentration and flow rates from different manufacturers.
- To identify the most reliable oxygen blender devices for clinical use.
Main Methods:
- Oxygen blenders from five manufacturers (Hudson, Inspiron, McGaw, Medishield, Vickers) were tested.
- Delivered oxygen concentration and flow rates were measured across various settings.
- Performance was assessed for accuracy and adequacy of output.
Main Results:
- Medishield and McGaw blenders exhibited higher accuracy in delivered oxygen concentration compared to other brands.
- The flow output from Medishield and McGaw devices was generally adequate.
- Medishield blenders maintained stable delivered oxygen concentration even with wide variations in oxygen inflow.
Conclusions:
- Medishield and McGaw oxygen blenders offer superior performance in disposable oxygen masks.
- These devices ensure more reliable oxygen therapy delivery.
- Healthcare providers should consider Medishield and McGaw for accurate oxygen concentration control.