Abstract: The invention relates to an injection device including an injector and an ampoule unit for the needle-free injection of a medium. A needle-free injection device has a first chamber with an interior that opens into a nozzle, and has a second chamber with an interior that is separated from the interior of the first chamber. The interiors of the two chambers are connectable to each other, thus allowing a mixing and/or reaction of the media located in the chambers. In the first chamber, a powdery medium can be accommodated, and in the second chamber, a fluid medium is can be accommodated. The fluid medium can be transported into the first chamber for the mixing/reaction of the two media.

Abstract: The invention relates to an injection device for the needle-free injection of a medium. Said injection device comprises an injector device and an ampoule unit, said ampoule unit comprising a base (4) holding the medium to be injected. Said base comprises a jacket (5) which exerts pressure on the base, and jacket completely enveloping the base in the longitudinal axial direction.

Abstract: The invention relates to an injection device consisting of an injector and an ampoule unit for the needle-free injection of a medium. A needle-free injection device is provided with a first chamber whose interior opens into a nozzle, and with a second chamber whose interior is separated from the interior of the first chamber, where the interiors of the two chambers are connectable to each other, thus allowing a mixing and/or reaction of the media located in the chambers, where, in the first chamber, a powdery medium is preferably accommodated, and in the second chamber, a fluid medium is preferably accommodated, and the fluid medium is preferably transported into the first chamber, for the mixing/reaction of the two media.

Abstract: The invention relates to an injection device for the needle-free injection of a medium. Said injection device comprises an injector device and an ampoule unit, said ampoule unit comprising a base (4) holding the medium to be injected. Said base comprises a jacket (5) which exerts pressure on the base, said jacket completely enveloping the base in the longitudinal axial direction.