| abstract |
A syringe is a ram assembly having a trigger member disposed about an axis and having an opening and a protrusion, and a ram configured to pressurize the drug container to fire the drug from the drug container, the trigger member A trigger mechanism including a ram assembly further having a trigger engagement member configured to engage the opening of the trigger member when the is in a pre-fire state, and to apply a force to the ram to fire the medicament A source of energy associated with the ram and a user-operable firing start member having an opening engaged with a protrusion of the trigger member, and in an axial direction of the trigger member proximally from the pre-fire state to the fire state A firing start member that is operable to cause movement and in a firing state allows the energy source to start the ram when the trigger engaging member is released from the retainer. . [Selection] Figure 1 |