Drug delivery device with retaining member

A drug delivery device for delivering a drug to a target tissue site, the drug delivery device comprising:

• a body comprising a proximal end and a distal end and a chamber comprising a passageway disposed therebetween, and an external surface comprising a first guide and a second guide;
• a retaining member disposed within a wall defined by the external surface of the body and engageable with the chamber;
• and
• an internal plunger comprising a handle, and configured for disposal within the body, wherein the plunger handle is configured for slidable engagement with the first guide and the second guide and movement of the plunger handle moves the plunger through the passageway of the body and engages with the retaining member such that the drug is dispensed from the delivery device.

A drug delivery device comprising:

• a sleeve extending along a longitudinal axis from a proximal end to an opposite distal end, the sleeve comprising an inner surface defining a chamber, the proximal end comprising an opening in communication with the chamber;
• a retaining member positioned in the chamber and comprising a passageway configured for disposal of a drug;
• and
• a plunger comprising a cap and a rod connected to the cap, the rod extending through the opening,
• wherein the retaining member is rotatable relative to the sleeve between a first orientation in which the passageway is offset relative to the rod and a second orientation in which the passageway is aligned with the rod, and
• wherein the rod is translatable relative to the sleeve along the longitudinal axis to move the rod through the passageway when the retaining member is in the second orientation.

A drug delivery device comprising:

• a sleeve extending along a longitudinal axis from a proximal end to an opposite distal end, the sleeve comprising an inner surface defining a chamber, the proximal end comprising an opening in communication with the chamber;
• a retaining member positioned in the chamber and comprising a passageway configured for disposal of a drug and a second passageway, the second passageway being spaced apart from the first passageway;
• and
• a plunger comprising a cap and a rod connected to the cap, the rod extending through the opening,
• wherein the retaining member is rotatable relative to the sleeve between a first orientation in which the rod is offset relative to the first passageway and a second orientation in which the rod is aligned with the first passageway, the rod being aligned with the second passageway when the retaining member is in the first orientation, the rod being offset relative to the second passageway when the retaining member is in the second orientation, and
• wherein the rod is translatable relative to the sleeve along the longitudinal axis to move the rod through the first passageway when the retaining member is in the second orientation.