EP1636091A2 — Dispenser and apparatus for filling a dispenser

USPTO Abstract

A dispenser for holding multiple doses of fluids or other substances, and for dispensing the substances, has a vial, a flexib e ~ adder received within the vial, and a variable volume storage chamber formed between the bladder and vial. A filling valve is coupled in fluid communication 5 with the storage chamber and ~eSnes (1) a normally closed, fluid-tight position hermetically sealing the storage chamber from the ambient atmosphere, and (2) an open position allowing the passage of fluid through the valve both to evacuate the storage chamber and to introduce fluid through the valve to 511 the storage chamber. A pump is coupled in fluid communication with the storage chamber for pumping fluids out of the storage chamber. A dispensing valve is coupled in 10 fluid communication with the pump and defines (1) a normally closed, fluid-tight position preventing the passage of fluid out of the dispenser, and (2) an open position for dispensing pumped fluid therethrough