System and method for mixing parenteral nutrition solutions

Details System and method for mixing parenteral nutrition solutions System and method for mixing parenteral nutrition solutions

1989-12-28

1991-08-06

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604 88, 604246, 604411, 211 74, A61M 3700

Patent

active

050373900

ABSTRACT:
An apparatus and method for mixing parenteral nutrition solutions from additives in a plurality of vials containing the additives, in which a vented spike is inserted through a disposable rack and into the stoppered end of each vial, with the vials secured on the rack. The rack is engaged on a stand through a quick release fitting, and maintains the vials in a vertical orientation with the labels clearly visible. A dedicated syringe is connected with each vial in aligned relationship therewith through a unique two-way valve which is mounted to a manifold. In one form of the invention, the valve is attached directly on the manifold to reduce dead space volume and consequently reduce residual fluid in the system between purges. A flushing system is attached to one end of the manifold to flush any residual fluids into the final container at the end of a transfer process. The other end of the manifold may be attached in tandem with a further manifold in a further apparatus containing additional vials for admixing even further additives.

REFERENCES:
patent: 2254994 (1941-09-01), Buttand
patent: 3552577 (1971-01-01), Latham, Jr.
patent: 3861388 (1975-01-01), Vaughn
patent: 4253501 (1981-03-01), Ogle
patent: 4447236 (1984-05-01), Quinn
patent: 4729401 (1988-03-01), Raines
patent: 4787898 (1988-11-01), Raines
patent: 4915688 (1990-04-01), Bischof et al.

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