Respiratory therapy system including a nasal cannula assembly

A - Human Necessities – 61 – M

Patent

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Details

A61M 16/00 (2006.01) A61B 5/08 (2006.01) A61B 5/087 (2006.01) A61F 5/56 (2006.01) A61M 16/06 (2006.01) A61M 16/10 (2006.01) A61M 16/16 (2006.01)

Patent

CA 2534750

A nasal cannula, for supplying a respiratory gas to a patient, comprising: a pair of spaced apart supply lines which each have a head at one end thereof with a discharge opening therein. The opposite end of each supply line is connectable to a respiratory gas source. Each head is sized to be snugly received and retained within one of the nasal cavities of the patient while forming a sufficient leakage passage, between a portion of inwardly facing nasal cavity skin of a patient and a portion of an exterior surface of the head, to facilitate exhausting of any excess respiratory gas supplied to the patient through the leakage passage and also facilitate inhalation of any room air required in excess of the respiratory gas to be supplied to the patient. The invention also relates to a respiratory therapy system incorporating the nasal cannula, a method of treating a patient with sleep disorder by using the nasal cannula, a diagnostic tool for measuring nasal cavity pressure of a patient, and a method of using the diagnostic tool for measuring nasal cavity pressure of a patient.

L'invention porte sur une canule nasale permettant de fournir un gaz de respiration à un patient, comprenant : une paire de lignes d'alimentation espacées qui sont dotées chacune d'une tête à une extrémité pourvue d'une ouverture d'évacuation. L'extrémité opposée de chaque ligne d'alimentation peut être reliée à une source de gaz de respiration. Chaque tête est dimensionnée afin d'être reçue et retenue de manière serrée dans une des cavités nasales du patient tout en formant un passage d'échappement suffisant entre une partie de la peau d'un patient de la cavité nasale faisant face vers l'intérieur et une partie d'une surface extérieure de la tête afin de faciliter l'évacuation de n'importe quel excès de gaz de respiration fourni au patient à travers le passage d'évacuation et aussi afin de faciliter l'inhalation de n'importe quel air ambiant qui est requis en plus du gaz de respiration à fournir au patient. Cette invention concerne également un système de thérapie respiratoire comprenant la canule nasale, un procédé de traitement d'un patient souffrant de troubles du sommeil au moyen de la canule nasale, un instrument de diagnostic afin de mesurer la pression de la cavité nasale d'un patient.

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