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John Pastrone, Edward Laenen: Drive mechanism for disposable fluid infusion pumping cassette. Abbott Laboratories, Harry G Thilbault, Robert E Wexler, May 22, 1990: US04927411 (234 worldwide citation)

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 cassett ...


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John Pastrone, Leland D Chamness, George H Fellingham, Walter L Jimison: Drive mechanism for disposable fluid infusion pumping cassette. Abbott Laboratories, Christensen O Connor Johnson Kindness, April 4, 1989: US04818186 (152 worldwide citation)

A driver for use in an infusion pumping cassette having an elongated valve actuator which operates a valve controlling the flow of fluid through the cassette, a bracket having a first arm pivotally secured to one end of the valve actuator and a second arm, a cam driveably engaging the second arm, a ...


3
John Pastrone: Disposable fluid infusion pumping chamber cassette and drive mechanism thereof. Abbott Laboratories, Robert E Wexler, Robert W Stevenson, June 27, 1989: US04842584 (132 worldwide citation)

This invention relates to a disposable cassette having a pumping chamber therein and with a controlled positive displacing pump driving apparatus for use with the cassette, for performing intravenous or intra-arterial infusions. More particularly, it pertains to disposable cassettes which include an ...


4
John Pastrone, George H Fellingham, Michael Lawless: Ultrasonic detector. Abbott Laboratories, Christensen O Connor Johnson & Kindness, April 18, 1989: US04821558 (39 worldwide citation)

An ultrasonic detector for detecting air in a fluid. A fluid pumping cassette includes an elastomeric member that defines three sides of a fluid passageway, a base of the cassette defining the other side. Resilient lobes on the elastomeric member extend outwardly in opposite directions on each side ...


5
John Pastrone, George H Fellingham, Michael Lawless: Ultrasonic detector. Abbott Laboratories, Christensen O Connor Johnson & Kindness, July 31, 1990: US04944191 (12 worldwide citation)

An ultrasonic sound generator and receiver are spaced apart from each other so as to receive a projecting portion of a cassette in which a liquid carrying passage is defined by a flexible membrane. The liquid carrying passage in the projecting portion fits between the ultrasonic sound generator and ...


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