Oxygen delivery devices presentation.pptx

Equipment

1. O x y g en D e l i very D e v i c es

2. I n t r o duction Oxygen is a critical component of perioperative and critical care. Administered to correct or prevent hypoxia. Choice depends on: Patient’s oxygen requirement Device’s flow capacity Precision of FiO₂ delivery

3. Classification of Oxygen Delivery Devices I. Based on Performance: A. Low-Flow Devices (Variable performance) FiO₂ depends on patient’s breathing pattern Does not meet total inspiratory demand Examples: Nasal cannula Simple face mask Partial rebreather mask Non-rebreather mask B. High-Flow Devices (Fixed performance) . Delivers precise FiO₂ Flow rate meets or exceeds patient’s peak inspiratory demand Examples: Venturi mask (air entrainment mask) High-flow nasal cannula (HFNC) T-piece Aerosol mask Face tent (with high flow)

4. II. Based on FiO₂ Delivered: Type FiO₂ Range Example Devices Low concentration 24–40% Nasal cannula, Venturi mask (24–40%) Moderate c o n c entration 40–60% Simple mask, Venturi mask (40–60%) High concentration 60–90% Non-rebreather mask, HFNC III. Based on Reservoir Use: Without reservoir: Nasal cannula, simple mask With reservoir: Partial rebreather, non-rebreather mask With humidification/reservoir: HFNC, tracheostomy T-piece

5. 1. Nasal Cannula A low-flow oxygen delivery device that delivers oxygen via two prongs into the nostrils, providing FiO₂ of 24–44% at 1–6 L/min flow. 2. Simple Face Mask A low-flow, variable performance mask that covers the nose and mouth, delivering FiO₂ of 35–60% at 5–10 L/min. Minimum 5 L/min is required to avoid CO₂ rebreathing. 3. Partial Rebreather Mask A mask with a reservoir bag but no one-way valves, allowing some exhaled air to be rebreathed. Delivers FiO₂ of 40–70% at 6–10 L/min. 4. Non-Rebreather Mask (NRBM) A high-concentration oxygen mask with a reservoir and one-way valves that prevent rebreathing of CO₂ and room air entrainment. Provides FiO₂ up to 90% at 10–15 L/min.

6. 5. Venturi Mask A high-flow device that delivers a fixed, precise FiO₂ (24–60%) using the Venturi principle. Ideal for COPD patients needing controlled oxygen delivery. 6. High-Flow Nasal Cannula (HFNC) A heated and humidified oxygen system that delivers up to 60 L/min flow with FiO₂ up to 100%, offering better tolerance, humidification, and low-level PEEP. 7. T-piece A high-flow oxygen interface used for tracheostomized or extubated patients, delivering humidified oxygen without resistance to expiration.