초록 ▼

An apparatus includes a medicament container and an actuator assembly coupled to a proximal end portion of the medicament container. A distal end portion of the medicament container is configured to be coupled to a needle. A piston is movably disposed within the medicament container such that the me

An apparatus includes a medicament container and an actuator assembly coupled to a proximal end portion of the medicament container. A distal end portion of the medicament container is configured to be coupled to a needle. A piston is 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 containing a medicament. The actuator assembly has a pressurized fluid container, a regulator and a bias member. The pressurized fluid container is configured to move relative to the medicament container between a first position and a second position. The regulator is configured to fluidically couple the pressurized fluid container and the second internal portion of the medicament container when the pressurized fluid container is in the second position. The bias member is configured to bias the pressurized fluid container in the first position.

대표청구항 ▼

What is claimed is: 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 d

What is claimed is: 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; anda 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.