Drug delivery device with retaining member

A drug delivery device comprising:

• a monolithic first member comprising a cylindrical wall extending along a longitudinal axis between opposite proximal and distal end surfaces, the cylindrical wall comprising opposite inner and outer surfaces, the inner surface defining a passageway, the cylindrical wall comprising spaced apart first and second grooves extending into the outer surface, the first member comprising spaced apart wings extending distally from the distal end surface, the cylindrical wall comprising a notch extending into the distal end surface;
• a monolithic hub rotatably positioned in the passageway;
• a monolithic needle coupled to the hub;
• a retaining member coupled to the hub;
• and a monolithic second member comprising a first wall having an inner surface, the inner surface of the first wall defining a channel, the first wall extending parallel to the longitudinal axis, the second member comprising a protrusion extending from the inner surface of the first wall, the body being slidably disposed within the channel such that the inner surface of the first wall extends 360 degrees about the cylindrical wall and the protrusion is slidably positioned in one of the first and second grooves, the second member comprising a second wall coupled to the first wall and a plunger extending from the second wall, the second wall extending perpendicular to the longitudinal axis, the plunger extending parallel to the longitudinal axis, the second member being configured to translate relative to the first member along the longitudinal axis to move the device between a first orientation in which the plunger is spaced apart from the needle and a second orientation in which the plunger is positioned in the needle, wherein the plunger is spaced apart from a channel of the hub when device is in the first orientation and the hub rotates relative to the first member to insert the plunger into the channel of the hub as the device moves from the first orientation to the second orientation, and wherein the hub is rotatable relative to the first member to move the device from a first configuration in which the retaining member is disposed in the notch and a second configuration in which the retaining member is spaced apart from the notch.

A drug delivery device comprising:

• a monolithic first member comprising a cylindrical wall extending along a longitudinal axis between opposite proximal and distal end surfaces, the cylindrical wall comprising opposite inner and outer surfaces, the inner surface defining a passageway, the cylindrical wall comprising spaced apart first and second grooves extending into the outer surface, the first member comprising spaced apart wings extending distally from the distal end surface, the cylindrical wall comprising a notch extending into the distal end surface;
• a monolithic hub rotatably positioned in the passageway, the hub comprising a channel;
• a monolithic needle coupled to the hub, the channel of the hub being in communication with a cannula of the needle;
• a monolithic retaining member coupled to the hub;
• a drug depot positioned within the channel of the hub;
• and a monolithic second member comprising a first wall having an inner surface, the inner surface of the first wall defining a channel, the first wall extending parallel to the longitudinal axis, the second member comprising a protrusion extending from the inner surface of the first wall, the body being slidably disposed within the channel such that the inner surface of the first wall extends 360 degrees about the cylindrical wall and the protrusion is slidably positioned in one of the first and second grooves, the second member comprising a second wall coupled to the first wall and a plunger extending from the second wall, the second wall extending perpendicular to the longitudinal axis, the plunger extending parallel to the longitudinal axis, the second member being configured to translate relative to the first member along the longitudinal axis to move the device between a first orientation in which the plunger is spaced apart from the channel of the hub and the needle and a second orientation in which the plunger is positioned in the needle, wherein the plunger moves the drug depot out of the channel of the hub and through the cannula as the device moves from the first orientation to the second orientation, wherein the plunger is spaced apart from a channel of the hub when device is in the first orientation and the hub rotates relative to the first member to insert the plunger into the channel of the hub as the device moves from the first orientation to the second orientation, and wherein the hub is rotatable relative to the first member to move the device from a first configuration in which the retaining member is disposed in the notch and a second configuration in which the retaining member is spaced apart from the notch.