A drug delivery device is provided for coupling a first container including a beneficial agent to a second member. In an embodiment, the device includes a substantially hollow member having a cannula mounted within a wall that divides the substantially hollow member into a first and second section. The first section includes means for receiving at least a portion of a first container. The substantially hollow member includes a wall that defines an exterior of the first section that is substantially flexible. A number of different cannula and flow path structures within the hollow member are possible pursuant to the present invention.