DISPOSABLE FLUID INFUSION PUMPING CHAMBER CASSETTE AND DRIVEMECHANISM THEREOF

摘要

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 positioned between said face and back members; said face member including a plunger opening therethrough opposite said pumping 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 projecting from said face member to detect the presence of air in said cassette.