Importance

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Abstract

A bi-flow nasal inhalation cup for mixing oxygen and ambient air includes a crescent shaped cup member or open top receptacle having a recessed pocket in a downwardly sloping collecting floor. A curved inner wall extends above and below a cup floor inner margin and is contoured to gently engage the upper lip of a patient. Opposite wing portions extend outwardly from the inner wall and conform to facial portions laterally of the nose. A substantially vertical outer wall merges with the cup floor and the inner wall and has a center portion which extends above the inner wall and merges with diverging opposite straight arm portions. A pair of cannula inlets respectively extend tangentially through the arm sections and project generally radially outwardly and at an upward angle toward the patient's face. Tubes or cannula are fitted into the inlets and extend toward the patient's face with each tube or cannula having a curve for draping over the patient's ears and supporting the cup member thereby. When worn, the outer wall of the cup is spaced from the patient's nose and permits a flow of ambient air onto the collecting floor which mixes with oxygen for breathing by the patient. The nasal cup is preferably a one piece, injection molded, plastic item designed for low cost, single patient use.

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First Claim