Infusion device with disposable elements

• US 5,246,347 A
• Filed: 10/25/1989
• Issued: 09/21/1993
• Est. Priority Date: 05/17/1988
• Status: Expired due to Term

• Current Assignee: Carefusion 303 Incorporated (Becton, Dickinson & Co)
• Original Assignee: Patients Solutions Incorporated
• Inventors: Davis, David L.
• Primary Examiner(s): FREAY, CHARLES GRANT
• Application Number:
  US07/426,988
• Time in Patent Office: 1,427 Days
• Field of Search: 417/474, 417/475, 417/476, 417/477, 417/478, 417/45, 604/67, 604/153
• US Class Current: 417/45
• CPC Class Codes: A61M 2205/6018 providing set-up signals for the apparatus configuration
• CPC Class Codes: A61M 2205/6072 Bar codes
• CPC Class Codes: A61M 5/142 Pressure infusion, e.g. using pumps
• CPC Class Codes: A61M 5/16831 Monitoring, detecting, signalling or eliminating infusion flow anomalies low-level float-valves causing cut-off A61M5/40; indicating or recording presence, absence or direction of flow in general G01P13/0066
• CPC Class Codes: A61M 5/16854 by monitoring line pressure
• CPC Class Codes: F04B 2203/0207 Torque
• CPC Class Codes: F04B 43/08 having tubular flexible members F04B43/12 takes precedence
• CPC Class Codes: F04B 43/082 the tubular flexible member being pressed against a wall by a number of elements, each having an alternating movement in a direction perpendicular to the axes of the tubular member and each having its own driving mechanism
• CPC Class Codes: F04B 49/065 and making use of computers

Abstract

An infusion device with a disposable administration set which is inexpensive to manufacture. In the preferred embodiment of the present invention the disposable administration set has a plurality of elongated cam followers connected to a plate assembly, wherein the cam followers are displaced in a predetermined sequence and forced against a delivery tube by cam means driven by rotary drive means. The disposable administration set is injection molded as a single integral piece. The disposable administration set includes adjustment spacers disposed between the plate assembly and the cam followers which adjust the distance between them to keep the device accurate. In the preferred embodiment of the present invention the cam means are configured to provide fluid delivery at a consistent and uniform rate.

Claims

1. A method of automatically programming a small, portable pump or cooperation with a disposable administration set comprising:

inserting, by relative motion, said disposable administration set within said pump;

simultaneously, automatically, transferring coded data regarding a prescribed infusion profile from said administration set to said pump, using said relative motion of said disposable administration set and said pump to automatically activate said transferring;

In response to said transferring step, automatically storing said data in said pump; and

automatically varying the pumping rate of said pump in accordance with said coded data regarding a prescribed infusion profile stored in said pump.