Patent ID: 8002753
Filing Date: 2011-08-23
Classification: A61M

Abstract:
1. An apparatus, comprising: a medicament container having a distal end portion and a proximal end portion, and a longitudinal axis extending through the distal end portion and the proximal end portion, the distal end portion configured to be coupled to a needle; a piston movably disposed within the medicament container such that the medicament container is divided into a first internal portion and a second internal portion, the first internal portion configured to contain a medicament; a pressurized fluid container coupled to the proximal end portion of the medicament container and containing a pressurized fluid; a flow regulator positioned between the medicament container and the pressurized fluid container, the flow regulator configured to be opened to selectively place the pressurized fluid container in fluid communication with the second internal portion of the medicament container such that the pressurized fluid fills the second internal portion and directly applies a force on the piston to move the piston toward the distal end portion of the medicament container; and a valve mechanism coupled to the distal end portion of the medicament container, the valve mechanism configured to selectively restrict a flow path between the first internal portion of the medicament container and the needle, the valve mechanism including an actuator configured to move in a direction substantially normal to the longitudinal axis; of the medicament container to actuate the valve mechanism.