Preservative free sterile fluid dispensing system

Details Preservative free sterile fluid dispensing system Preservative free sterile fluid dispensing system

B - Operations, Transporting

65

D

B65D 81/24 (2006.01) A61J 1/14 (2006.01) B05B 11/04 (2006.01) B65D 47/18 (2006.01) B05B 11/00 (2006.01)

Patent

CA 2122629

2122629 9310015 PCTABS00022 A fluid dispensing system for delivering sterile preservative free solution is disclosed. The system uses double (56, 58) self-sealing valves mounted in series inside a tip (22) compartment which fits on the outlet of a multiple dosage squeeze container to prevent undesirable retrograde flow of the dispensed liquid back into the bottle during the decompression cycle. The valves used are positive acting, normally closed duckbill valves which open to express solution from the container when squeezing pressure is applied to the bottle and which automatically close when the pressure is released. A hydrophobic filter (34) is provided to sterilize the replacement air which enters the container upon release of the squeezing pressure.

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