Unitary, hermetically-sealed but pierceable dispensing container

Details Unitary, hermetically-sealed but pierceable dispensing container Unitary, hermetically-sealed but pierceable dispensing container

1978-02-10

1979-11-27

Lake, Roy

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Including application of internal fluid pressure to hollow...

264534, 425522, 425524, 425525, B29C 1707

Patent

active

041761537

ABSTRACT:
A unitary, hermetically sealed but pierceable dispensing container, suitable for packaging parenteral solutions, is made from a flexible, generally tubular body of thermoplastic material utilizing a form, fill and seal technique and a movable, composite mandrel that includes a forming ram member for compression molding from within the container a container wall portion which includes a pierceable membrane. The tubular body is closed at one end and terminates at the other end in a draining region having an access aperture or port sealed by a unitary membrane of predetermined thickness. The membrane permits penetration of a cannula therethrough without coring, and an annular sealing means surrounding the aperture is adapted for frictional and sealing engagement of the cannula after the membrane has been penetrated.

REFERENCES:
patent: 3137748 (1964-06-01), Makowski
patent: 3288898 (1966-11-01), West
patent: 3597793 (1971-08-01), Weiler et al.
patent: 3674405 (1972-07-01), Hansen
patent: 3919374 (1975-11-01), Komendowski
patent: 3949033 (1976-04-01), Uhlig

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