Abbott Laboratories Corporation

Gregory G Hoerner

Michael W Lawless

Ashok Kaul

Stephen J Kreinick

Peter A Soberon

Robert A Hermann

Steven E Minick

A disposable pumping cassette having an integral auxiliary flow control and pressure monitoring member is used for delivering a medicinal fluid to a patient. The pumping cassette includes an elastomeric member mounted in a rigid body having an inlet and an outlet. An inlet valve and an outlet valve on the cassette are opened, and the flow control is positioned to allow the medicinal fluid to flow freely through the cassette, priming it before the outlet is connected to the patient. The cassette is then coupled to an associated pump driver, closing the flow control to disable free fluid flow through the cassette, and the outlet to the cassette is coupled in fluid communication with the patient's body.

Disposable fluid infusion pumping cassette having an interrelated flow

A modular ambulatory infusion pump comprises a base unit including an integral housing, said base unit including an infusion pump for infusing fluid into a patient's body, a battery power supply for energizing infusion pump and a control for operating the infusion pump to achieve at least one of a desired rate, a desired volume and a desired time interval for infusing the fluid. Disposed on the integral housing is a first electrical connector, said first electrical connector being provided to electrically couple the base unit to a mating connector on one of the plurality of modules, said one of the plurality of modules being coupled to the base unit to add a selected additional port to the base unit and to provide additional capability, said plurality of modules including a data port module that includes a printer interface port. Also provided is an external power input module that includes a power port for coupling the modular ambulatory infusion pump to an AC line to provide electrical power for the base unit.

Interface module for use with an NCT-based pumping mechanism and

A disposable pumping cassette having an integral auxiliary flow control and pressure monitoring member is used for delivering a medicinal fluid to a patient. The pumping cassette includes an elastomeric member mounted in a rigid body having an inlet and an outlet. An inlet valve and an outlet valve on the cassette are opened, and the flow control is positioned to allow the medicinal fluid to flow freely through the cassette, priming it before the outlet is connected to the patient. The cassette is then coupled to an associated pump driver, closing the flow control to disable free fluid flow through the cassette, and the outlet of the cassette is coupled in fluid communication with the patient's body. The medicinal fluid is drawn into a pumping chamber formed in the rigid body as a plunger of the associated pump driver is drawn up from the elastomeric membrane at a recess formed in the rigid body. The plunger is then advanced downwardly, forcing the elastomeric membrane into the pumping chamber to deliver the medicinal fluid to the patient. The pressure of the fluid delivered to the patient is monitored through contact of the auxiliary flow control member with the elastomeric membrane over an outlet channel of the cassette.

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Poway, CA, United States of America

Gregory G Hoerner