Diaphragm cassette for solution pumping system

Details Diaphragm cassette for solution pumping system Diaphragm cassette for solution pumping system

1994-06-06

1995-01-03

Casaregola, Louis J.

Pumps

Expansible chamber type

Distributor formed from integral portion of flexible wall...

417480, 4174131, F04B 4302

Patent

active

053781260

ABSTRACT:
A solution pumping system including a disposable pump cassette is disclosed, with the system configured for efficient and accurate preparation of parenteral admixture solutions. The system includes a pump driver having a reciprocable pump plunger and a plurality of associated valve actuators. The disposable pump cassette of the system is configured for removable positioning in operative association with the pump driver, and includes a positive displacement pump configured for operation by the reciprocable pump plunger. The pump cassette further includes a plurality of liquid inlets, and at least one liquid outlet joined in fluid communication with the inlets. By selective operation of the valve actuators of the pump driver, one or more selected source solutions are drawn through the pump inlets by the positive displacement pump, and directed through the pump outlet to an admixture solution container.

REFERENCES:
patent: 4276004 (1981-06-01), Hahn
patent: 4303376 (1981-12-01), Siekmann
patent: 4391600 (1983-07-01), Archibald
patent: 4411603 (1983-10-01), Kell
patent: 4657490 (1987-04-01), Abbott
patent: 4758238 (1988-07-01), Sundblom et al.
patent: 4818186 (1989-04-01), Pastrone et al.
patent: 4892584 (1989-06-01), Pastrone
patent: 5056992 (1991-10-01), Simons
patent: 5062774 (1991-11-01), Kramer et al.
patent: 5098262 (1992-03-01), Wecker et al.

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