Drug delivery device

A drug delivery device, comprising:

• a housing for receiving a pouch within the housing, the pouch having collapsible walls enclosing a chamber, a dispensing side, and a remote side facing away from the dispensing side, and accommodating a drug within the chamber;
• a needle arrangement comprising at least one needle configured to pierce the skin of a user, wherein the needle arrangement is configured to be brought into fluid communication with the dispensing side of the pouch;
• a pressure member;
• and
• an energy storage member coupled to the pressure member, the energy storage member being loaded in an initial state of the drug delivery device and being configured for squeezing the drug out of the chamber of the pouch by the pressure member during a dispensing operation of the drug delivery device.

A drug delivery device, comprising:

• a housing for receiving a pouch within the housing, the pouch having collapsible walls enclosing a chamber, a dispensing side, and a remote side facing away from the dispensing side, and accommodating a drug within the chamber;
• a needle arrangement comprising at least one needle being configured to pierce the skin of a user, wherein the needle arrangement is configured to be brought into fluid communication with the dispensing side of the pouch;
• a pressure member;
• and
• an energy storage member coupled to the pressure member, the energy storage member being loaded in an initial state of the drug delivery device and being configured for squeezing the drug out of the chamber of the pouch by the pressure member during a dispensing operation of the drug delivery device, wherein the needle arrangement is configured to pierce the dispensing side of the pouch at a remote side of the needle arrangement and the skin at a dispensing side of the needle arrangement such that the needle arrangement communicates with the chamber and guides the drug under the skin during the dispensing operation, wherein the needle arrangement comprises at least two needles, and wherein the needles are arranged as a linear array or as a planar array.

A method for dispensing a drug, the method comprising:

• providing a drug delivery device, comprising
• a pouch having collapsible walls enclosing a chamber, a dispensing side, and a remote side facing away from the dispensing side, and accommodating the drug within the chamber;
• a housing for receiving the pouch within the housing;
• a needle arrangement comprising at least one needle configured to pierce the skin of a user, wherein the needle arrangement is configured to be brought into fluid communication with the dispensing side of the pouch;
• a pressure member;
• and
• an energy storage member coupled to the pressure member, the energy storage member being loaded in an initial state of the drug delivery device and being configured for squeezing the drug out of the chamber of the pouch by the pressure member during a dispensing operation of the drug delivery device,
• a drive portion having a drive portion recess for accommodating the pressure member and the energy storage member, the drive portion being arranged on the remote side of the pouch;
• and
• a release mechanism being configured for locking the pressure member and/or the energy storage member within the drive portion in the initial state and for releasing the pressure member and/or, respectively, the energy storage member for the dispensing operation, and
• activating the release mechanism to release the pressure member.