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Intravenous fluids administration apparatus

  • US 3,895,741 A
  • Filed: 09/27/1972
  • Issued: 07/22/1975
  • Est. Priority Date: 09/28/1971
  • Status: Expired due to Term
First Claim
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1. Apparatus for parenteral fluid administration to a patient comprising:

  • a. two pressure pads having mutually confronting spaced apart pressure applying faces, a side edge and bottom edge of one face being offset from the corresponding side edge and bottom edge of the other face;

    b. a pliant bag having a bottom outlet, a gaseous content and a liquid content;

    c. means to support said pliant bag sandwiched between said faces so that its liquid content may drain through said outlet, the outlet extending beneath one of said pads;

    d. loading means operable to cause one of said pressure pads to approach the face of said other pressure pad;

    e. said faces being so sized that when, by said approach, they bring opposed side-walls of said pliant bag therebetween into contact thereby to halt further said approach of said faces, portions of said side-walls remain bulged apart suffIciently for the squeezed bag still to contain said gaseous content thereby to avoid its reaching the patient; and

    said pressureapplying faces being formed that the said bulged apart sidewall portions form a lateral duct in and at the bottom of the bag to which said outlet opens, and also forms at least one riser duct which opens to said lateral duct and extends for the full height of the bag interior.

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