05252044 is referenced by 108 patents and cites 24 patents.

An ambulatory parenteral fluid infusion pump employs a disposable in-line cassette which provides three independent fluid paths between two flexible plastic sheets. The fluid path extends through a pump chamber having a piston plate secured to the flexible sheet at each pumping chamber. The sealed flexible sheets are housed in a rigid housing which provides an aperture through which a catch member formed on the piston plate extends, and having living hinges overlying the inlet and outlet paths for shutting off those paths. An outlet valve is normally closed, and operates in response to buildup of fluid pressure from advancement of the piston plate into the pump chamber to deliver fluid.

Title
Parenteral fluid pump with disposable cassette
Application Number
7/963636
Publication Number
5252044
Application Date
October 20, 1992
Publication Date
October 12, 1993
Inventor
Raymond Santo
Dallas
TX, US
Aaron T Raines
Dallas
TX, US
Agent
Ross Howison Clapp & Korn
Assignee
Medflow
TX, US
IPC
F04B 43/08
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