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Rotary valve for a disposable infusion set

  • US 9,968,739 B2
  • Filed: 03/14/2013
  • Issued: 05/15/2018
  • Est. Priority Date: 03/14/2013
  • Status: Active Grant
First Claim
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1. A pump cassette for coupling with a pump device, the pump cassette comprising:

  • a fluid lumen adapted for passage of an infusion fluid toward a patient, the fluid lumen formed of a monolithic tube having only a first and second opening, the first opening positioned at a first end of the cassette and the second opening positioned at a second, opposed end of the cassette;

    a rotary valve assembly that can be actuated to regulate fluid flow through the fluid lumen; and

    a frame coupled to the fluid lumen and the valve assembly, the frame adapted to be inserted into a seat of a pump device, wherein the frame forms a flat surface that extends along a level plane and that is juxtaposed with the tube along the pumping segment of the tube so as to provide a platen relative to the fluid lumen, the frame configured to be inserted into the seat only when aligned in a predetermined orientation relative to the seat.

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