| 摘要 |
PROBLEM TO BE SOLVED: To provide a powder drug supply device 10 comprising simple division powder drug supply mechanisms 70-71 capable of transmitting quickly, powder drug to a supply destination, even when an amount of the divided powder drug is a minute amount.SOLUTION: The powder drug supply device 10 comprises: a storage hopper 61 having an on-off valve 62 for receiving powder drug which is fallen and discharged from a powder drug cassette (90) by a minute amount, and temporarily storing the powder drug; and measurement means (52),(60) for determining a powder drug transmission amount of the powder drug, and division of powder drug is performed by opening and closing of the on-off valve 62. The powder drug supply device further comprises: a groove-shape tub-state member 70 which is disposed on a lower side of the storage hopper 61 in an inclined posture (inclination angle φ) which allows sliding down of the powder drug by self weight; and an oscillation mechanism 71 for oscillating the member 70. In the oscillation of the groove-shape tub-state member 70, longitudinal direction movement of it is permitted, but movement in other directions is suppressed. In addition, oscillation speed which is obtained by dividing amplitude of the groove-shape tub-state member 70 in oscillation by a half period is set in a predetermined speed range. During division of powder drug, the oscillation speed is varied from a lower limit speed side to an upper limit speed side in the speed range.SELECTED DRAWING: Figure 1 |
