Diaphragm for solution pumping system

F - Mech Eng,Light,Heat,Weapons – 04 – B

Patent

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Details

F04B 43/02 (2006.01) A61M 5/142 (2006.01) A61M 39/04 (2006.01) B65D 51/00 (2006.01)

Patent

CA 2145295

A solution pumping system (10) in- cluding a disposable pump cassette (12) is disclosed, with the system configured for ef- ficient and accurate preparation of parental admixture solutions. The system includes a pump driver (14) having a reciprocable pump plunger (36) and a plurality of associ- ated valve actuators (32, 34). The disposable pump cassette of the system is configured for removable positioning in operative asso- ciation with the pump driver, and includes a positive displacement pump (31) config- ured for operation by the reciprocable pump plunger (36). The pump cassette further in- cludes a plurality of liquid inlets (24), and at least one liquid outlet (26) joined in fluid communication with the inlets. By selec- tive operation of the valve actuators of the pump driver, one or more selected source so- lutions are drawn through the pump inlets by the positive displacement pump, and directed through the pump outlet to an admixture so- lution container.

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