Volumetric infusion actuator

• US 4,601,702 A
• Filed: 05/21/1984
• Issued: 07/22/1986
• Est. Priority Date: 05/21/1984
• Status: Expired due to Fees

• Current Assignee: General Electric Capital Corporation (General Electric Company)
• Original Assignee: Quest Medical Incorporated (Atrion Corporation)
• Inventors: Hudson, James E.
• Primary Examiner(s): NOT, DEFINED
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US06/612,384
• Time in Patent Office: 792 Days
• Field of Search: 604/246, 604/67, 604/31, 604/151, 604/153, 604/890-893, 604/250, 604/30, 128/DIG. 12, 128/DIG. 13
• US Class Current: 604/246
• CPC Class Codes: A61M 5/14224 Diaphragm type
• CPC Class Codes: Y10S 128/12 Pressure infusion
• CPC Class Codes: Y10S 128/13 Infusion monitoring

Abstract

A volumetric infusion actuator providing a slot means for receiving a valved cassette having exposed valve pads. An actuation means for automatically moving individual arms into and out of engagement with the valve pads according to a predetermined cycle which governs flow through the cassette.

Claims

1. A fluid delivery cassette actuator for a valved cassette comprising:

(a) slot means for receiving a valved cassette having exposed valve pads;

(b) valve actuator arms movable into engagement with the valve pads of a cassette located in operating position in the slot means and actuation means for automatically moving each individual arm independently into and out of engagement with its valve pad in accordance with a predetermined cycle;

(c) biasing means normally forcing all of the arms into engagement with the valve pads to close them;

(d) eject means operable to overcome biasing means and move all arms back from the cassette, and then to push the cassette from the operating position in the slot; and

(e) insertion setup means responsive to insertion of a cassette into the operating position in the slot to automatically disable the eject means and permit the biasing means to cause the arms to engage the valve pads.