Fluid transfer system for drug delivery device

A drug delivery device comprising:

• a housing;
• a container received within the housing, the container having a first end and a second end positioned opposite the first end, the container comprising a barrel having a first end and a second end positioned opposite the first end of the barrel, the barrel configured to receive a medicament, a stopper moveable within the barrel to dispense the medicament from the barrel, and a septum received by the second end of the barrel and having a first side and a second side positioned opposite the first side, the container defining an open space extending from the second side of the septum to the second end of the container;
• a drive assembly received within the housing and configured to engage the container and dispense medicament from the container;
• a needle actuator assembly received within the housing, the needle actuator assembly comprising a patient needle configured to pierce a patient's skin;
• and
• a valve assembly comprising:
• a valve housing having a first side and a second side positioned opposite from the first side;
• a cannula having a first end and a second end positioned opposite the first end, the cannula defining a central passageway;
• and
• a valve sleeve defining a cannula space, the valve sleeve is configured to move from a pre-use position where the first end of the cannula is received within the cannula space to a use position where the first end of the cannula extends outside of the valve sleeve and the cannula space, wherein the valve sleeve is configured to contact a container of the drug delivery device before any other element of the valve assembly when the valve sleeve moves from the pre-use position to the use position.

A drug delivery device comprising:

• a housing;
• a container received within the housing, the container having a first end and a second end positioned opposite the first end, the container comprising a barrel having a first end and a second end positioned opposite the first end of the barrel, the barrel configured to receive a medicament, a stopper moveable within the barrel to dispense the medicament from the barrel, and a septum received by the second end of the barrel and having a first side and a second side positioned opposite the first side, the container defining an open space extending from the second side of the septum to the second end of the container;
• a drive assembly received within the housing and configured to engage the container and dispense medicament from the container;
• a needle actuator assembly received within the housing, the needle actuator assembly comprising a patient needle configured to pierce a patient's skin;
• and
• a valve assembly comprising:
• a valve housing having a first side and a second side positioned opposite from the first side;
• a cannula having a first end and a second end positioned opposite the first end, the cannula defining a central passageway;
• and
• a valve sleeve defining a cannula space, the valve sleeve is configured to move from a pre-use position where the first end of the cannula is received within the cannula space to a use position where the first end of the cannula extends outside of the valve sleeve and the cannula space, wherein the valve sleeve is configured to contact a container of the drug delivery device before any other element of the valve assembly when the valve sleeve moves from the pre-use position to the use position,
• wherein the container further comprises a locking element having a main body and a locking ring, the locking element configured to secure the septum to the barrel of the container.