Apparatus for precise administration of parenteral fluids

Claim 1

APPARATUS FOR THE PRECISE ADMINISTRATION TO A PATIENT OF PARENTERAL FLUIDS AND THE LIKE COMPRISING A PARENTERAL FLUID CONTAINER CONNECTED TO AN INFUSION TUBE AND NEEDLE FOR CONNECTION TO AND ADMINISTRATION OF PARENTERAL FLUID TO A PATIENT, AN INCOMPRESSIBLE FLUID CONTAINER, SAID CONTAINERS HAVING A COMMON WALL THEREBETWEEN TO ISOLATE THE FLUIDS IN THE RESPECTIVE CONTAINERS, SAID WALL BEING YIELDABLE TO COMMUNICATE THE PRESSURE IN THE INCOMPRESSIBLE FLUID CONTAINER TO THE PARENTERAL FLUID CONTAINER, A SUPPLY RESERVOIR CONTAINING INCOMPRESSIBLE FLUID THEREIN, A POSITIVE DISPLACEMENT PUMP CONNECTED BETWEEN THE SUPPLY RESERVOIR AND THE INCOMPRESSIBLE FLUID CONTAINER TO PUMP INCOMPRESSIBLE FLUID FROM THE SUPPLY RESERVOIR INTO SAID INCOMPRESSIBLE FLUID CHAMBER AT A PREDETERMINED CONSTANT FLOW RATE WHEREBY TO EXPEL PARENTAL FLUID FROM THE PARENTERAL FLUID CONTAINER AT EXACTLY THE SAME FLOW RATE AS INCOMPRESSIBLE FLUID IS FORCED BY THE PUMP INTO THE INCOMPRESSIBLE FLUID CONTAINER AND INDEPENDENT OF THE IMPEDANCE TO FLOW PRESENTED BY THE CONNECTION TO THE PATIENT.