摘要:
A valved container assembly (10) comprising a container (12) for containing a fluid, the container (12) extending in an axial direction and having at least one venting opening (12a) at a front end and at least one dispensing opening (12b). The valved container assembly (10) further comprising a valve (14) disposed in the container (12) and a plunger element (20) disposed axially rearward of the valve (14), the plunger element (20) being axially moveable in the container (12) and defining a first volume (22) in the container (12) between the plunger element (20) and the valve (14), where the plunger element (20) is configured to increase the pressure of a fluid in the first volume (22) upon axial movement relative to the valve (14). The valve (14) comprises a permanent seal (16) forming a fluidic seal between the at least one venting opening (12a) and the first volume (22), and a resilient seal (18) that is axially rearward of said permanent seal (16) and is moveable between a sealing configuration and an open configuration. In the sealing configuration the resilient seal (18) forms a fluidic seal with the container (12) between the at least one dispensing opening (12b) and the first volume (22). In at least one axial position of the valve (14) in the container (12) when the resilient seal (18) is in the open configuration the first volume (22) is fluidly connected to the at least one dispensing opening (12b). The resilient seal (18) is moveable from the sealing configuration to the open configuration upon fluid pressure in the first volume (22) exceeding a predetermined pressure threshold.
摘要:
Fluid delivery device for discharging a fluid, having: a housing; piston pump; biasing mechanism; and trigger mechanism. The housing has a basal end and a discharge end with outlet for discharging the fluid. The piston pump has a casing defining a pump chamber for storage of fluid, a piston slidably movable relative to the pump chamber, a piston plunger, and a delivery channel. The trigger mechanism is movable from a cocked configuration wherein the trigger mechanism prevents transfer of a biasing force of the biasing mechanism to the casing to a triggered configuration with the trigger mechanism enabling transfer of the biasing force to the casing to cause movement of the casing towards the housing outlet to discharge fluid from the pump chamber, along the delivery channel and out of the outlet of the housing. The biasing mechanism has one or more flexible catch members and a manually operable trigger.
摘要:
A method of manufacturing a container containing propellant comprising the steps of: i) sealing a first sheet of rupturable material to a second sheet of rupturable material to form a lower seal and two side seals; ii) placing a propellant dispensing apparatus in fluid communication with a central volume defined by said lower seal, said two side seals and a seal between the propellant dispensing apparatus and the first and second sheets; iii) depositing propellant in the central volume using said propellant dispensing apparatus; and iv) sealing the first sheet to the second sheet to form an upper seal to form a container where the propellant is contained between said upper seal, said lower seal, and said two side seals.
摘要:
A valved container assembly which has a container for containing a fluid, the container extending in an axial direction and having an open front end and a valve disposed in the container. The valved container assembly is configured so that forward axial movement of the valve relative to the container is inhibited. A plunger element is disposed axially rearward of the valve and is axially moveable in the container. The plunger element is configured to increase the pressure of a fluid in a first volume of the container upon forward axial movement relative to the valve. The valve includes a channel bypassing the permanent seal, the channel having a first opening in fluid communication with the atmosphere outside of the valved container assembly and a second opening selectively sealed from the first volume by a resilient seal.
摘要:
A syringe assembly which has a barrel for containing one or more medicaments and a stopper disposed in the barrel defining and separating a first volume and a second volume within the syringe assembly. The stopper includes a permanent seal fluidly sealing the stopper to the barrel about the entire perimeter of the stopper intermediate the first volume and second volume, and a channel bypassing the permanent seal, the channel having a first opening in fluid communication with the second volume and a second opening selectively sealed from the first volume by a resilient seal. The resilient seal is moveable between a sealing configuration and an open configuration to selectively seal the channel from the first volume and is moveable from the sealing configuration to the open configuration upon fluid pressure in the first volume or second volume exceeding a first pressure threshold.
摘要:
One aspect of the invention relates to a dispensing apparatus for delivering metered doses of product from a pressurised dispensing container. The dispensing apparatus comprises a housing for receiving, in use, said pressurised dispensing container, and an outlet through which, in use, metered doses of product from said pressurised dispensing container can be dispensed. The housing comprises an aperture via which said pressurised dispensing container can be inserted into said housing. The dispensing apparatus is at least partially enclosed by a shrink wrapped film, the shrink wrapped film including an opening which is: (a) at least partly aligned with the aperture of the housing; and (b) dimensioned so as to allow, in use, said pressurised dispensing container to pass through the opening in order to be inserted into the housing via the aperture. A further aspect of the present invention relates to a method of manufacturing and packaging a dispensing apparatus.