Patent ID: 9597462
Date: 2017-03-21
CPC Classifications: A61M,F04C

Claim:
1. A dispense interface for a drug delivery device for delivering at least two drug agents, wherein the dispense interface is configured to be axially coupled to a cartridge holder of the drug delivery device, wherein the cartridge holder is configured to hold at least two cartridges, wherein the dispense interface comprises: at least two inlet channels, each comprising a fluid inlet opening configured to receive fluid from a respective cartridge of the at least two cartridges when the dispense interface is axially coupled to the cartridge holder; an outlet channel comprising a fluid outlet opening; and a valve structure configured to be selectively moved into any one of a plurality of positions when the dispense interface is coupled to the cartridge holder, wherein in at least one position the valve structure selectively permits or prevents fluid flow from any of the at least two inlet channels to the outlet channel, wherein the valve structure comprises a coupling structure configured to engage a valve coupling feature of the cartridge holder when the dispense interface is coupled to the cartridge holder, and wherein, when the valve structure is in at least one blocking position of the plurality of positions, the coupling structure is configured to block the engaging of the valve coupling feature of the cartridge holder, thereby preventing coupling of the dispense interface to the cartridge holder.