Patent ID: 9254366
Filing Date: 2016-02-09
CPC Classification: A61M

Claim Text:
1. Needle assembly having distal and proximal ends, the needle assembly comprising: a body element having distal and proximal ends; an attachment located at the distal end of the body element, the attachment configured to be attached to a distal end of a medication delivery device comprising a cartridge containing medication; a button element located at the proximal end of the body element, wherein the button element is movable within and relative to the body element in a distal direction toward the distal end of the medication delivery device from a first position to a second position; a needle configured to move in the distal direction toward the cartridge, when the button element is moved in the distal direction from the first position to the second position; wherein, in a first state, the attachment is locked and, in a second state, the attachment is unlocked; and wherein the attachment is unlocked when the button element reaches a second predetermined position.