Formulation dispenser for use with a parenteral delivery system

Details Formulation dispenser for use with a parenteral delivery system Formulation dispenser for use with a parenteral delivery system

1983-07-29

1984-10-02

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604 92, 604246, 137268, A16M 514

Patent

active

044745745

ABSTRACT:
A formulation dispenser is disclosed for use in a parenteral delivery system. The dispenser comprises an inlet for admitting fluid into the dispenser and an outlet for letting fluid leave the dispenser. A beneficial agent is housed in a formulation chamber in the dispenser and a membrane permeable to fluid and agent defines one boundary of the formulation chamber. A piston is slideably disposed in the dispenser for governing the flow of fluid through the dispenser, or for permitting fluid to contact the membrane and enter the formulation chamber for forming a solution containing agent that flows through the outlet into the parenteral system.

REFERENCES:
patent: 2507214 (1950-05-01), Medley
patent: 2849256 (1958-08-01), Kowac
patent: 3872879 (1975-03-01), Green
patent: 4294280 (1981-10-01), Tom

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