Freeze-drying, storage, double chamber cylinder for re-configuration - piston unit and syringe application and cylinder of injection solutions - piston unit method of filling

摘要

Needleless syringe, for example a piston in a needleless syringe for providing an injectable solution of sterile invention, - cylinder unit relates to (1), the unit is: are located cylinder (2) in the injection solution (4) die was placed in such a way that it can move and chamber (3) in, (5) end wall with an outlet element (6) or a nozzle at least one hole; (3) a chamber for receiving the I comprising; (7) of the two piston. The unit: it is made of two members (3) with the second chamber concentric and (8) the first chamber (9) chambers, a second cross-section (8) the first chamber where is greater than the cross section (9) chambers; the first chamber (8), and is sealed by a piston (10) of the first chamber and the second (9), which is the second piston (7 be sealed by), that the first chamber (8) is separated from the second chamber (9) where; the second piston (7) includes flow channels of one (16) and at least the second chamber (9) is oriented in the axial direction of the at least one chamber of the first, and comprises at (34) lyophilized channels arranged in a sealable one axial direction, or at least be in wherein the; that it comprises at the rear end on each of the chambers (8, 9), the flow channel is (36). The present invention is a cylinder - to a method of filling (1) piston unit. [Selection Figure] Figure 4.1