Apparatus for precise administration of parenteral fluids

• US 3,199,511 A
• Filed: 04/26/1961
• Issued: 08/10/1965
• Est. Priority Date: 04/26/1961
• Status: Expired due to Term

• Current Assignee: George Kulick
• Original Assignee: George Kulick
• Inventors: Kulick, George
• Application Number:
  US04/105,730
• Time in Patent Office: 1,567 Days
• US Class Current: 604/150
• CPC Class Codes: A61M 5/1483 using flexible bags externally pressurised by fluid pressure
• CPC Class Codes: Y10S 128/12 Pressure infusion

Claims

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.