Patent ID: 8123719

Claim:
An apparatus, comprising: a housing; a medicament container disposed within the housing, the medicament container having a first plunger disposed within a proximal end portion of the medicament container and a second plunger disposed within the medicament container spaced apart from the first plunger, the first plunger, a portion of the medicament container and the second plunger collectively defining, at least in part, a first medicament containing portion containing a liquid medicament, the second plunger and a distal end portion of the medicament container collectively defining, at least in part, a second medicament containing portion containing a substantially dry medicament; a first energy storage member configured to produce a force when actuated to move at least the second plunger within the medicament container, the first medicament containing portion being placed in fluid communication with the second medicament containing portion when the second plunger is moved in response to the first energy storage member being actuated, the first energy storage member being any one of a spring or a compressed gas container; and a second energy storage member configured to produce a force when actuated to move the first plunger and the second plunger within the medicament container, the second energy storage member different than the first energy storage member, the second energy storage member being any one of a spring or a compressed gas container.