Oxygen delivery apparatus, system, and method

摘要

A system, method, and apparatus for air delivery. A cannula having a low velocity airflow and efficient air delivery system. The cannula includes at least one compartment to reduce airflow velocity and nostril inserts. The cannula may further include moldable components and materials to increase comfort and minimize chafing of a wearer. The cannula further may include a head strap to hold the mask in position on a user's head, where said harness minimizes chafing of the user.

主权项

1. An air delivery system comprising:
a cannula comprising a velocity reduction compartment and nostril inserts, wherein said velocity reduction compartment is a structural chamber separate from said nostril inserts and wherein during operation said cannula is configured to be operatively associated with a user's breathing; cannula tubing facilitating airflow into said velocity reduction compartment, wherein said cannula tubing is configured to fit around the side of said user's head and comprises an earpiece section configured to fit above said user's ear, wherein said earpiece section is at least semi-rigid, and wherein said airflow exits said velocity reduction compartment through said nostril inserts; a flow rate throttling valve operatively associated with said cannula, wherein said flow rate throttling valve facilitates the airflow to said cannula via said cannula tubing, and wherein said flow rate throttling valve allows a minimum flow rate and varies the flow rate to maintain a positive pressure; an air source operatively associated with said flow rate throttling valve; and wherein said velocity reduction compartment reduces the flow rate of said airflow from said cannula tubing, and said airflow exits said velocity reduction compartment and enters said nostril inserts at a reduced flow rate, wherein said nostril inserts are shaped to maintain at least a minimum cross-sectional area to allow said airflow to pass through and exit said nostril inserts at said reduced flow rate.