Needle assisted jet injection device having reduced trigger force

An injector includes a firing mechanism including: a firing member disposed about a shaft having an opening and a protuberance, and a ram assembly having a ram configured to pressurize a medication container to expel a medication therefrom, the ram assembly further having a trigger engagement member. configured to engage the aperture of the trigger member when the trigger member is in a pre-firing condition; a power source associated with the ram for driving the ram to expel the medication; and a user-operable trigger initiation member having an opening engaged with the protuberance of the trigger member and operable to cause an axial translation of the trigger member in a proximal direction from the pre-firing condition to a firing condition in the that the trigger latch member is released from the retaining portion to allow the power source to fire the ram. (Automatic translation with Google Translate, without legal value)