| 摘要 |
PROBLEM TO BE SOLVED: To provide a nasal cannula which generates less noise in supplying a respiratory gas at a high flow and is less likely to cause dew condensation.SOLUTION: A nasal cannula includes a pair of introducing tubes 3A, 3B which are arranged on both end parts of a cannula body part 2 for circulating a respiratory gas and are connected to a supply tube for the respiratory gas, a pair of nostril tubes 4A, 4B which are arranged in a central part for inserting into nostrils and are respectively formed in an integrated manner, a pair of flow passages 5A, 5B which respectively make a set of the introducing tube 3A, 3B and the nostril tube 4A, 4B communicate inside the cannula body part 2, and a partitioning wall part 6 which partitions between the flow passages 5A, 5B. The flow passages 5A, 5B are bent by the partitioning wall part 6.SELECTED DRAWING: Figure 4 |
