| 摘要 |
Various delivery devices and methods are disclosed, including a delivery device (200) for delivering a dose substance (110) in powdered form to an eye. The device can include a pocket (100A, 100B, 100C) for holding dose substance and a propulsion system (202, 204, 908, 1004, 1006) for propelling a dose consisting of a predetermined volume of said dose substance from said pocket towards said eye, wherein one or both of said pocket and said propulsion system are configured to inhibit propulsion of particles having a size greater than a predetermined threshold to said eye. |
