Pen needle with retractable shield

A pen needle, comprising:

• a hub;
• a needle coupled to the hub and having a distal end and a proximal end;
• a distal needle shield, wherein the distal needle shield is configured to move between a first position, a second position, and a third position;
• and
• a proximal needle shield, wherein the proximal needle shield is configured to move from a first position to a second position, wherein:
• in an initial configuration, the proximal needle shield is coupled to the distal needle shield for retaining the proximal needle shield in the first position of the proximal needle shield;
• and
• movement of the distal needle shield from the first position of the distal needle shield to the second position of the distal needle shield is configured to disconnect the distal needle shield from the proximal needle shield.

A pen needle, comprising:

• a hub having a distal end and a proximal end;
• a needle coupled to the hub and having a distal end extending from the distal end of the hub and a proximal end at a proximal end of the hub;
• a distal needle shield coupled to the hub and movable with respect to the hub between a first extended position, a retracted position, and a second extended position, wherein the distal needle shield comprises a first coupling member;
• and
• a proximal needle shield coupled to the hub and movable from a retracted position to an extended position, wherein the proximal needle shield comprises a second coupling member configured for coupling to the first coupling member of the distal needle shield to retaining the proximal needle shield in the retracted position of the proximal needle shield.

A pen needle, comprising:

• a hub;
• a needle coupled to the hub and having a distal end and a proximal end;
• a distal needle shield;
• and
• a proximal needle shield, wherein:
• the distal needle shield is movable with respect to the hub to shield or expose the distal end of the needle;
• the proximal needle shield is movable with respect to the hub to shield or expose the proximal end of the needle;
• the distal needle shield and the proximal needle shield are configured to couple to each other in a first configuration to maintain the proximal needle shield in a position where the proximal end of the needle is exposed;
• and
• the distal needle shield is configured to rotate with respect to the hub to uncouple from the proximal needle shield, the uncoupling allowing the proximal needle shield to move to a position where the proximal end of the needle is shielded.