Disposable delivery assembly for a drug delivery device

A drug delivery device for dispensing a liquid medicament, comprising:

• a housing having at least one feeder member;
• a receptacle to receive a disposable delivery assembly, the disposable delivery assembly comprising:
• a disposable injector comprising an injection needle, a flexible tube, and an injector fluid coupling, wherein the injection needle is in fluid communication with the fluid coupling via the flexible tube, and
• a disposable cartridge comprising a reservoir at least partially filled with the liquid medicament and comprising a cartridge fluid coupling in fluid communication with the reservoir,
• wherein the disposable injector and the disposable cartridge are mechanically interconnected in an undeployed configuration, in which the injector fluid coupling and the cartridge fluid coupling are disconnected, and
• wherein the disposable cartridge is configured to be displaced relative to the disposable injector into a deployed configuration, in which the injector fluid coupling and the cartridge fluid coupling are in fluid communication;
• and
• a fastener configured to releasably fix the disposable delivery assembly in or relative to the receptacle.

A method of deploying or undeploying a disposable delivery assembly of a drug delivery device, the method comprising:

• positioning the disposable delivery assembly against the drug delivery device, the disposable delivery assembly comprising:
• a disposable injector comprising an injection needle, a flexible tube, and an injector fluid coupling, wherein the injection needle is in fluid communication with the injector fluid coupling via the flexible tube, and
• a disposable cartridge comprising a reservoir at least partially filled with the liquid medicament and comprising a cartridge fluid coupling in fluid communication with the reservoir,
• wherein the disposable injector and the disposable cartridge are mechanically interconnected in an undeployed configuration, in which the injector fluid coupling and the disposable cartridge fluid coupling are disconnected, and
• wherein the disposable cartridge is configured to be displaced relative to the disposable injector into a deployed configuration, in which the injector fluid coupling and the cartridge fluid coupling are in fluid communication;
• inserting a pre-assembly of the disposable cartridge and the disposable injector, in which the disposable cartridge and the disposable injector are in the undeployed configuration, in a receptacle of a housing of the drug delivery device;
• and
• transferring a fastener of the drug delivery device from a released configuration into a locking configuration thereby inducing a displacement of the disposable cartridge relative to the disposable injector into the deployed configuration.