04927411 is referenced by 234 patents and cites 16 patents.

A disposable fluid infusion pumping chamber cassette comprises a sandwich type construction which lends itself to a multiplicity of control and monitoring functions including pressure monitoring, air bubble detection monitoring, adaption to multiple inputs, and leak detection monitoring, the cassette includes a rigid face member and a rigid back member having an elastomeric diaphragm positioned therebetween, provides for the transmission of fluid from one end of the cassette to the other, and includes an enlarged recess portion forming the pumping chamber, with exposed openings in the face member opposite the pumping chamber to permit the passage of a plunger and opposed openings adjacent the fluid passage to permit the selective actuation of valving members therein, with a flow control member mounted upon the face member adjacent the passage between the pumping chamber and fluid outlet thereof, which is utilized to either open the passage to free flow of fluid or to block it off completely.

Title
Drive mechanism for disposable fluid infusion pumping cassette
Application Number
7/45924
Publication Number
4927411
Application Date
May 1, 1987
Publication Date
May 22, 1990
Inventor
Edward Laenen
Palo Alto
CA, US
John Pastrone
Los Gatos
CA, US
Agent
Robert E Wexler
Harry G Thilbault
Assignee
Abbott Laboratories
IL, US
IPC
A61M 31/00
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