Patent ID: 7540858

Claim:
A non-injection end passive safety system for an injection pen needle, comprising: a) a needle having an injection end and a non-injection end; b) a hub; c) a needle carrier situated in and moving coaxially with respect to the hub and firmly securing the needle; d) a shield having a travel element engaging a corresponding element on the carrier permitting axial movement of the shield with respect to the carrier, said travel element engaging a locking element on the carrier to lock the shield in a position covering the injection end of the needle; e) a shield return spring biasing the shield in a direction away from the carrier toward the injection end of the needle; f) a carrier activation spring biasing the carrier in a direction away from the hub in a direction toward the injection end of the needle; wherein the carrier moves the needle toward the injection end and into the hub, effectively storing the needle within the hub to safely shield the non-injection end of the needle after an injection.