Needle-less syringe with gas generator to expel active substance has compact body with gas generator actuated by sliding cap

摘要

The syringe (1) has a compact body (2) containing a pyrotechnic gas generator (100), gas expansion chamber (6), a reservoir (7) for the active substance (8), and injection system (9) with a channel (16). The gas generator and the reservoir with injection system form 2 sub-assemblies, with the gas generator offset to one side of the reservoir and actuated by a sliding cap (17) covering the body.