The invention relates to the field of inhalation devices for liquids. In particular, the invention relates to a liquid emission mechanism for an inhalation device, as well as a method of emitting a liquid from an inhalation device. The inhalation device comprises a housing (1), a reservoir (2) for storing a liquid, a pumping unit, said unit comprising a riser pipe (5), a hollow cylindrical part (3) having an interior space and being linearly moveable on the riser pipe (5), wherein the pumping chamber is fluidically connected with the reservoir (2), and a nozzle (6) which is connected liquid-tight to an downstream end portion (5B) of the riser pipe (5), and wherein said linear relative motion can be effected by a relative rotation around a rotational axis (R) of a rotatable part (1A) with respect to a counterpart (1B), such that said relative rotation is converted into said linear relative motion by means of a gear mechanism comprising at least one cam surface having a first section (9A) and a second section (9B), and wherein a means for the storage of potential energy (7) is provided. The device is characterized in that said cam surface has, between the first section and the second section (9A, 9B), a third section (9C) of constant height, such that, while said counterpart (1B) slides along said third section (9C), no linear relative motion occurs. A method for the generation of an aerosol comprises, upon rotation of the rotatable part (1B), a first, charging phase for filling the pumping chamber with liquid, and a second, discharging phase for emitting the atomized liquid from the nozzle (6), and is characterized in that between said two phases, a third, resting phase exists during which, despite further rotation, the volume of the pumping chamber remains constant.

A portable pump by which liquid may be horizontally pressed out, comprising a liquid storage container, a pump head being provided at a side of the liquid storage container, and a liquid suction device that is connected to the pump head being provided within the liquid storage container. The liquid suction device comprises a liquid suction chamber, a spring, a piston, and a liquid outlet pipe that is connected to the pump head. The liquid suction chamber is provided with a liquid inlet pipe and a fixed end of the spring, check valves being provided within the liquid outlet pipe and the liquid inlet pipe. The piston is sleeved with the liquid outlet pipe and provided with a through hole that matches an opening of the liquid outlet pipe. The pump can comprise a locking seat on the side of the liquid storage container that matches a pump head cover.

The present invention discloses a liquid pharmaceutical preparation and a method for administering a pharmaceutical preparation by nebulizing the pharmaceutical preparation in an inhaler. The propellant-free pharmaceutical preparation comprises: (a) active levalbuterol or a salt thereof, such as levalbuterol tartrate; (b) a pharmacologically acceptable preservative; (c) a pharmacologically acceptable stabilizer, (d) a solvent, and optionally (e) other pharmacologically acceptable additives.

A fluid dispenser assembly having a fluid reservoir (R), a dispenser member (5), and a dispenser orifice (62). The fluid reservoir (R) includes a piston (42) movable in leaktight sliding contact in a slide cylinder (41) over a maximum stroke between a start position that corresponds to a substantially full state of the reservoir, and an end position that corresponds to a substantially empty state of the reservoir. The dispenser assembly has a detector (35) arranged outside the fluid reservoir (R) and acts remotely to detect a determined physical property that enters into a small detection field that covers an alert position of the piston that is closer to the end position than to the start position. The piston (42) carries the detectable determined physical property and the detector (35) delivers, in response to a detection of the physical property, at least one alert signal perceptible to a user.

Disclosed is a drug delivery device comprising a body for holding a first solution and a second solution which are independent with each other; a pipeline delivery system comprising one or more pipelines for independently delivering the first solution and the second solution, respectively; a press device for sucking the first solution and the second solution into the pipelines, and a nozzle for delivering the first solution and the second solution in the pipelines to an administration site such that the first solution covers the second solution at the administration site.

The present invention is directed to a single-layer cartridge, and a process for producing a plastic single-layer container included in the cartridge. The single-layer cartridge comprises a plastic single-layer container, a seal and a nozzle-shaped cap or stopper, wherein the single-layer cartridge can be used to connected with a soft mist inhalation device or inhalation atomizer.

A portable pump by which liquid may be horizontally pressed out, comprising a liquid storage container, a pump head being provided at a side of the liquid storage container, and a liquid suction device that is connected to the pump head being provided within the liquid storage container. The liquid suction device comprises a liquid suction chamber, a spring, a piston, and a liquid outlet pipe that is connected to the pump head. The liquid suction chamber is provided with a liquid inlet pipe and a fixed end of the spring, check valves being provided within the liquid outlet pipe and the liquid inlet pipe. The piston is sleeved with the liquid outlet pipe and provided with a through hole that matches an opening of the liquid outlet pipe. The portable pump can provide better sealing and avoid a liquid leakage gap in a pressed liquid outlet structure.

Embodiments of the invention include a poly-ketonic cosmetic package for fluid dispenser systems.

An assembly method of an apparatus suitable for pressurized liquid transfusion is disclosed. In one step, a nozzle is to be inserted into the through hole of an elastomeric ring. Because the dimension of the nozzle is larger than the through hole, the internal wall of the elastomeric ring is tensioned and deformed so as to fit the nozzle. In one step, the elastomeric ring along with the nozzle is inserted into a receptacle. The dimension of the outer contour of the elastomeric ring needs to be decreased so as to be accommodated by the receptacle. Due to the flexibility of the elastomeric ring, it resumes at least partially to its original shape. Therefore, proper seal is created and maintained between the elastomeric ring and the nozzle such that leakage and pressure loss may be prevented. The foregoing is capable of working under high-pressured environment for prolonged use.

This invention relates to a pressing device of a liquid food container, and the pressing device is mounted on the container's cover. The pressing device includes a pressing head which is connected to drive a compression part, so that the compression part can drive a first and second anti-leak valves in pressing and releasing actions. The valve heads of the anti-leak valves are alternatively closed and opened under the pressing and releasing actions. Thus, the liquid in the container can be stored in the liquid storage chamber through a liquid suction port, and then extruded out from a liquid outlet through the liquid conduction port. Therefore, the use of the anti-leak valves can effectively and accurately control the liquid out of the liquid's volume and the internal vacuum state, the liquid is locked in the pressing device without dripping in a vacuum state to achieve leak-proof and anti-splash effect.