Flexible multi-compartment container with peelable seals and method for making same
First Claim
1. A method for forming a flexible container comprising the steps of:
- providing a flexible, transparent front sheet;
providing a flexible, vapor impermeable rear sheet, the front and rear sheets sealed together at a common peripheral edge;
heating the front and rear sheets in a first localized area to fuse together the heated portions of the adjoining surfaces, thereby forming a first peelable seal extending between two sides of the common peripheral edge, the first peelable seal separably joining the front and rear sheets to thereby form a first compartment;
heating the front and rear sheets in a second localized area to fuse together the heated portions of the adjoining surfaces, thereby forming a second peelable seal extending between the two sides of the common peripheral edge, the second peelable seal separably joining the front and rear sheets to thereby form a second compartment and a third compartment, said second compartment is between the first and third compartments;
providing first and second sacrificial ports interposed between the front and rear sheets and in communication with the first and second compartments, respectively;
filling the first compartment with a first composition through a respective sacrificial port;
filling the second compartment with a second composition through a respective sacrificial port; and
completing the seal along the container'"'"'s common peripheral edge and removing the sacrificial ports from the container.
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Accused Products
Abstract
A flexible container is provided for the storage and administration of medical solutions. The container incorporates a transparent front sheet made from a planar layer of a polymer and an opposing rear sheet. The rear sheet is made from a planar laminate layer. The front and rear sheets are sealed together along a common peripheral edge to form a volume enclosure. The volume enclosure is constructed of materials having high oxygen and moisture barrier properties which allows the container thermoplastic to be stored for extended periods of time without degrading the contents. The volume enclosure is then inflated with a pressurized gas to permanently stretch the front and rear sheets outwardly and to thereby increase the volume capacity of the container. An alternative embodiment of the container incorporates multiple compartments, separated by peelable seals, for containing a diluent and a medicament. The seals are ruptured by manipulation of the container to thereby mix the contents together for delivery through standard IV arrangement to a patient.
104 Citations
19 Claims
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1. A method for forming a flexible container comprising the steps of:
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providing a flexible, transparent front sheet;
providing a flexible, vapor impermeable rear sheet, the front and rear sheets sealed together at a common peripheral edge;
heating the front and rear sheets in a first localized area to fuse together the heated portions of the adjoining surfaces, thereby forming a first peelable seal extending between two sides of the common peripheral edge, the first peelable seal separably joining the front and rear sheets to thereby form a first compartment;
heating the front and rear sheets in a second localized area to fuse together the heated portions of the adjoining surfaces, thereby forming a second peelable seal extending between the two sides of the common peripheral edge, the second peelable seal separably joining the front and rear sheets to thereby form a second compartment and a third compartment, said second compartment is between the first and third compartments;
providing first and second sacrificial ports interposed between the front and rear sheets and in communication with the first and second compartments, respectively;
filling the first compartment with a first composition through a respective sacrificial port;
filling the second compartment with a second composition through a respective sacrificial port; and
completing the seal along the container'"'"'s common peripheral edge and removing the sacrificial ports from the container. - View Dependent Claims (2, 3, 4, 5)
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6. A method for forming flexible container, the method comprising the steps of:
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providing a flexible, transparent front sheet comprising a polypropylene-polyethylene co-polymer blended with styrene ethylene-butylene styrene elastomer;
providing a flexible, vapor impermeable rear sheet;
heating the front and rear sheets in a first localized area to fuse together the heated portions of the adjoining surfaces, thereby forming a permanent seal around a portion of a common peripheral edge of said front and rear sheets, the permanent seal having at least one gap therein providing a channel between said front and rear sheets; and
providing at least one sacrificial port interposed between the front and rear sheets and in communication with the channel for filling the container. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A method for forming flexible container, the method comprising the steps of:
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providing a flexible, transparent front sheet;
providing a flexible, vapor impermeable rear sheet;
heating the front and rear sheets in a first localized area to fuse together the heated portions of the adjoining surfaces, thereby forming a permanent seal around a portion of a common peripheral edge of said front and rear sheets, the permanent seal having at least one gap therein providing a channel between said front and rear sheets; and
providing at least one sacrificial port interposed between the front and rear sheets and in communication with the channel for aseptically filling the container. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification