Patent ID: 8425462

Claim:
An apparatus comprising: a housing; a medicament carrier moveably disposed within the housing; a delivery member; an energy storage member configured to produce a force via a pressurized gas to move the medicament carrier from a first carrier position to a second carrier position, the delivery member disposed within the housing when the medicament carrier is in the first carrier position, a portion of the delivery member extending from the housing when the medicament carrier is in the second carrier position; a moveable member configured to move between a first moveable member position and a second moveable member position when the carrier moves from the first carrier position to the second carrier position, the moveable member configured to move from the second moveable member position to a third moveable member position when the carrier is in the second carrier position, the moveable member configured to discharge a medicament through the delivery member when moving from the second moveable member position to the third moveable member position; and a release mechanism coupled to the moveable member, the release mechanism including a valve configured to engage a protrusion disposed on a proximal portion of the medicament carrier when the moveable member is in the third moveable member position, the valve configured to release the pressurized gas thereby releasing the force from the medicament carrier when the moveable member is in the third moveable member position to allow medicament carrier to move from the second carrier position towards the first carrier position.