| 摘要 |
This invention relates to an active agent delivery device (10). More particularly, the invention relates to a delivery device that is robust and resistant to transient mechanical forces while being space- and beneficial agent stability-efficient. The invention provides a fluid-imbibing delivery device (10) comprising a housing (12), said housing having a first wall section (14) that substantially restricts the passage of fluid into the delivery device, i.e. is substantially fluid-impermeable, and that encloses an internal compartment (18) that contains a beneficial agent formulation (22); having a second wall section (16) that permits the passage of fluid into the delivery device, i.e. is fluid-permeable, and that encloses an expandable driving member (20); having a partition layer (24) between the beneficial agent formulation (22) and the expandable driving member (20); and having exit means (13); where the driving member (20) and the second wall section (16) surround and cover the open end (19) and an extensive portion of the vertical sides of the first wall section (14). |
