| 摘要 |
PROBLEM TO BE SOLVED: To provide a system as a measuring device 1 activated by a suction airflow of a user and used for inhaling a powder material 2, especially, medicament.SOLUTION: A system includes: a mouthpiece 6; a storage chamber 15 for storing a powder material; a measuring rod 33 having a measuring chamber 40, carrying out a powder material 2 stored in the storage chamber 15 by the measuring chamber 40, and moving the measuring chamber 40 to a discharge standby position B; and a piston 54 for closing the measuring chamber 40 at the discharge standby position B. The piston 54 is displaced toward the mouthpiece 6 to a discharge release position by a suction airflow of a user. In the system, the piston 54 includes a disc-like upper area; and a plurality of tongue-like materials 77 extending from the base of the disc-like upper area. The plurality of tongue-like materials 77 close the measuring chamber 40 at the discharge standby position B, and releases and opens the measuring chamber 40 when the piston 54 is displaced to the discharge release position by the suction airflow of the user. |
