| 摘要 |
PROBLEM TO BE SOLVED: To provide a cannula device facilitating and ensuring attachment/detachment of a connector between tubes of a nasal cannula and a supplying tube in a respiration-gas supplying device side.SOLUTION: The cannula device includes: a nasal cannula having nasal tubes; respiration-gas flow tubes connected to the nasal cannula; an adaptor pipe connected to the respiration-gas flow tubes; a connector pipe removably attached to the adaptor pipe; and a respiration-gas supplying tube connected to the connector pipe. One of the adaptor pipe and the connector pipe is a female member having a receiving part and the other is a male member having an inserting part; and the male member is removably inserted into the female part. The cannula device further includes: a ring-shape part formed on a base-end part of the inserting part as a protruding ridge or a recessed groove extending on whole circumference thereof; and a lock piece formed on the receiving part, having a projection part locking the ring-shape part of the inserting part inserted in the receiving part.SELECTED DRAWING: Figure 4 |
