Aseptic duckbill flip-cap fitment for a collapsible container

摘要

A fitment for use with a collapsible bag for dispensing liquids or semi-solids having a spout of a generally cylindrical body attached to a collapsible bag, an aseptic flip-cap attached to the spout having positioned therein a flexible cap duckbill that allows for the flow of fluid when engaged with a probe assembly, wherein the flip-cap forms an aseptic seal with the spout on the collapsible bag.

主权项

1. A fitment for use on a collapsible bag for dispensing of liquids and semi-solids from the bag, the fitment consisting of:
(a) a spout consisting of a generally hollow cylindrical body having an external surface capable of mating with an aseptic flip-cap and an internal surface capable of forming an aseptic seal with an aseptic flip cap and the spout having at one end, a base portion for securing the spout to the collapsible bag; (b) an aseptic flip-cap consisting of an outer collar and an inner collar with the outer collar and the inner collar each having an inner and outer surface, the inner surface of the outer collar and the outer surface of the inner collar forming a cavity adapted to be removably attachable to the spout, the inner surface of the inner collar being capable of attaching to a cap duckbill, and a hollow cylinder section having a proximal end and a distal end with each having an inner and outer surface, the cylinder section being fixedly attached at its distal end to the inner collar, the inner surface of the inner collar and the outer surface of the proximal end of the cylinder forming a cavity and a flange fixedly attached to the outer surface of the outer collar; and wherein the outer surface of said inner collar of the aseptic flip-cap consists of at least two sealing rings having different surfaces wherein the surfaces are selected from the group consisting of (A) curved surface, (B) triangular surface and (C) flat surface capable of forming an aseptic seal with the internal surface of the spout; (c) a slidably removable probe; and (d) a substantially hollow cap duckbill adapted to mate with the proximal end of the aseptic flip-cap and which forms a seal within the fitment that can be unsealed by insertion of the probe into the fitment through the hollow cylinder of the aseptic flip-cap, the cap duckbill having a dome and a tapered end and an ejection end, the tapered end having a reversibly sealable slit capable of preventing fluid flow through the aseptic flip-cap upon removal of the probe from the fitment.