| abstract |
Disclosed is a medication interface for a drug delivery device for delivering at least two drug agents with improved accuracy of drug dose determination. A medication interface is configured to be coupled to a cartridge holder of a drug delivery device, and the cartridge holder is configured to hold at least two cartridges. The dosing interface is at least two inlet channels 404, 406, each comprising a fluid inlet opening 408, 412, each fluid inlet opening being configured to receive fluid from each of the two cartridges. Channels 404, 406, an outlet channel with a fluid outlet opening, and a valve structure 420 configured to selectively move to any one of a plurality of positions includes two inlet channels at at least one position. Selectively permit fluid flow from any of the above to the outlet channel. [Selection] Figure 12 |