Disposable fluid infusion pumping chamber cassette and drive...

Details Disposable fluid infusion pumping chamber cassette and drive... Disposable fluid infusion pumping chamber cassette and drive...

A - Human Necessities

61

M

128/91

A61M 5/14 (2006.01) A61M 5/142 (2006.01) F04B 49/03 (2006.01)

Patent

CA 1310873

A B S T R A C T The invention relates to a pump cassette adapted to be driven by a pump driver having a plunger and valve actuators, comprising a cassette inlet, a cassette outlet and a fluid path therebetween; a rigid face member; a rigid back member having an enlarged recess forming a pumping chamber along said fluid path; an elastomeric member posi- tioned between said face and back members; said face member including a plunger opening therethrough opposite said pump- ing chamber to permit the passage of the plunger and valve actuator openings to permit valve actuators to control the flow of fluid through said pumping chamber; a flow control member mounted on said face member for controlling the flow of fluid along said fluid path; and air detection means pro- jecting from said face member to detect the presence of air in said cassette.

565509

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