Pharmaceutical mixing container with combination stopper and pum

Details Pharmaceutical mixing container with combination stopper and pum Pharmaceutical mixing container with combination stopper and pum

1992-09-23

1994-12-20

Kruter, Jerome L.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604 89, 604 82, 604 56, 604416, A61M 3700

Patent

active

053742494

ABSTRACT:
A pharmaceutical mixing container for storing a liquid having at least two factions which tend to separate during storage. A housing has an inner volume and is closed at one end by a septum arrangement and at another end by a combination sealing and pumping member. The combination sealing and pumping member has an integrally formed outer diaphragm element forming a diaphragm chamber with the inner structure of this element, and a plurality of fluid channels extending through the sealing and pumping element from the diaphragm chamber to the surface facing the inner volume of the container. A driving member assembly is coupled to the diaphragm element to enable this element to be extended and retracted by manipulating the driving element assembly inwardly and outwardly of the container. Operation of the diaphragm element provides a reversible gentle fluid flow enabling the liquid and other constituents of the pharmaceutical to be drawn into the diaphragm chamber and expelled back into the inner volume of the container, thereby thoroughly admixing the constituents.

REFERENCES:
patent: 3164303 (1965-01-01), Trautmann
patent: 3464412 (1969-09-01), Schwartz
patent: 3659749 (1972-05-01), Schwartz
patent: 3678931 (1972-07-01), Cohen
patent: 3682174 (1972-08-01), Cohen
patent: 4116240 (1978-09-01), Guiney
patent: 4493348 (1985-01-01), Lemmons
patent: 4563174 (1986-01-01), Dupont et al.
patent: 4850966 (1989-07-01), Grau et al.

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