18-12-2014 дата публикации
Номер: US20140371689A1
Принадлежит:
An ophthalmic dispenser and method of filling and dispensing fluid stored therein. The dispenser includes a rigid housing defining a fluid-receiving chamber, a flexible bladder receivable within the fluid-receiving chamber, a pump coupled in fluid communication with the fluid-receiving chamber, and a nozzle having a valve defining an annular, axially-extending valve seat, an outlet aperture coupled in fluid communication between the valve seat and the pump, and a flexible valve cover extending about the valve seat and forming an annular, axially-extending interface therebetween. The valve interface is connectable in fluid communication with the outlet aperture, and at least part of the valve cover is movable between (i) a normally closed position with the valve cover engaging the valve seat to close the interface and form a fluid-tight seal therebetween, and (ii) an open position with at least part of the valve cover spaced away from the valve seat in response to pumped fluid flowing through the outlet aperture at a pressure greater than a valve opening pressure to allow the passage of pressurized fluid therebetween. The rigid housing is mountable within a cartridge which, in turn, is mountable within a dispenser housing including an eyelid depressor and a trigger for simultaneously actuating the eyelid depressor and pump. 1. A method comprising:providing a plurality of cartridges for storing and dispensing an ophthalmic fluid, the plurality of cartridges being substantially identical to one another and each having a vial, a pump, and a nozzle, the vial including an interior fluid receiving chamber defined therein, the pump being in fluid communication with the fluid receiving chamber for pumping a fluid received therein from the cartridge, the nozzle being disposed in fluid communication with the pump for allowing the passage of the pumped fluid therethrough, the cartridge further having a casing that retains the nozzle, the pump, and the vial arranged in that ...
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