Abstract:
A method for filling a cylinder/piston unit (1) for a needle-free injector comprising a chamber (3) arranged in a cylinder (2), for receiving an injection solution (4), a front wall (5) having at least one nozzle borehole or an outlet element (6), and a second piston (7) arranged to move in the chamber. The chamber (3) is made in two parts with a first chamber (8) and a concentric second chamber (9) having a smaller cross section than the first chamber. A first piston (10) closes the first chamber (8) and the second piston closes the second chamber (9). The second piston comprises at least one flow channel (16) or the first chamber comprises at least one closable, axially oriented freeze-drying channel (34), and the second chamber (9) comprises at least one axially oriented flow channel (36), on the respective rear ends of the chambers (8, 9).
Abstract:
A pressure-stable cylinder/piston unit which blocks water vapor and oxygen and is designed for a needle-free injector, with a chamber arranged in a cylinder, which blocks water vapor and oxygen, and designed for long-term and sterile storage of an injection solution, an end wall with at least one nozzle bore or one outlet element, a pressure-stable outer cylinder, and a pressure-stable piston arranged movably in the chamber and blocking water vapor and oxygen. Methods for bubble-free, automatic or manual filling of the cylinder/piston unit, also at atmospheric pressure are also disclosed.
Abstract:
A disposable injector with a housing (10) in which are arranged at least one mechanical spring energy reservoir (50), at least one cylinder/piston unit (100), at least one piston-actuating ram, and at least one trigger unit. For this purpose, the housing has at least one inverted draw hook, which has at least one support surface respectively in the region of its free end. The spring-loaded piston-actuating plunger rests on the support surface, whereby the contact zone placed between the draw hook and the piston-actuating plunger represents a variable-speed gear pair thrusting the draw hook radially outwards. The locking position of the draw hook is secured by an actuating element positioned in a locked position. The actuating element has a triggering position which effects radially outwards aligned retreat of the draw hook when the piston-actuating plunger is released.
Abstract:
A disposable injector with a housing (10) in which a mechanical spring energy reservoir, a cylinder/piston unit (100), a piston-actuating ram (60) and a trigger unit are arranged, wherein the spring energy reservoir comprises at least one pretensioned spring element, wherein at least part of the piston-actuating ram is positioned between the spring energy reservoir and the piston of the cylinder/piston unit, and wherein the piston (111) of the cylinder/piston unit is separately moveable via pump rod (140). The pump rod can be coupled releasably to the piston or to a piston rod of the piston. The cylinder of the cylinder/piston unit has a rear sealing element (105) that permits sterile closure of the cylinder interior located between the piston and the cylinder.
Abstract:
A closure system for containers used for storing or administering substances in the form of liquids, pastes or powders that allows the container to be securely closed permanently and in a virus-proof, bacteria-proof and spore-proof manner. The container having an opening that is to be closed, a cap provided with a through-hole, the cap including a substantially cylindrical securing area, and a closure element for sealing the opening. The container includes an end face which surrounds the opening and on which the closure element bears. The closure element comprises a virus-proof, bacteria-proof and spore-proof film, and the cap comprises at least one closed, elastic sealing lip bearing resiliently in a direction towards the closure element in the operative position.
Abstract:
A single-use injector is disclosed comprising a housing (10), arranged in which are at least one mechanical spring energy store (50), at least one piston-cylinder unit (100), which can be effectively filled at least for a certain time, at least one piston-actuating ram (60) and at least one triggering unit (80). The spring energy store comprises at least one pre-tensioned spring element. The spring-loaded piston-actuating ram (60) has at least one retaining rod or hook (62), which can be moved transversely, at least in certain regions, and by means of a supporting portion supports the tensioned spring energy store on at least one resting surface of the housing. When actuation occurs, the triggering unit (80) releases the supporting portion to allow it to move away from the resting surface.
Abstract:
A housing of the injector is made from a thin-walled sheet-metal part. The sheet-metal part has at least two branches or legs. Each branch has, at the free end thereof, an angled retaining element or a recess as a means of receiving the cylinder of a cylinder/piston unit. The branches are elastic flexural beams which, in the middle area, are each bent in a Z-shape or S-shape to form a supporting portion for the piston-actuating ram. The contact zone situated between an individual supporting portion and the piston-actuating ram represents a wedge gear pairing that forces the respective branch outwards. The trigger unit comprises at least a trigger element which is slidably supported on the metal sheet, wherein the support section or, respectively the contact sections extend outwardly into longitudinal grooves. The branches may be provided with a locking tongue to engage corresponding openings in the trigger element to lock the housing in position as desired.
Abstract:
The invention relates to pharmaceutical preparations that are used in a method for treating opiate addiction or opiate dependence, especially heroin dependence. The active substance used is preferably diamorphine and/or one of the pharmaceutically acceptable acid addition salts thereof. The invention also relates to a method for treating opiate dependence.
Abstract:
The invention relates to a device and a method for increasing the transdermal permeation of medications. The invention is characterized in that a constituent which effects a local increase in temperature and/or an increase in blood flow or the skin is administered in a addition to the transdermally applied active substance.
Abstract:
The subject matter of the present invention concerns a process for the isolation of the alkaloid galanthamine; the galanthamine itself which has been produced according to this process; the use of the galanthamine thus produced in galenic preparations; and the galanthamine thus produced for treating narrow-angle glaucoma, Alzheimer's disease, as well as alcohol and nicotine dependence.