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Method and apparatus for uninterrupted delivery of radiographic dye

DC
  • US 5,911,708 A
  • Filed: 04/08/1998
  • Issued: 06/15/1999
  • Est. Priority Date: 11/07/1994
  • Status: Expired due to Term
First Claim
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1. A fluid delivery system, comprising:

  • a fluid reservoir, said fluid reservoir having an outlet;

    a deformable fluid holding chamber, said holding chamber having an inlet and an outlet;

    a fluid shut off valve in said holding chamber for shutting off said outlet of said holding chamber when said holding chamber becomes empty;

    a tubular conduit connecting said outlet of said reservoir in fluid flow communication with said inlet of said holding chamber;

    a one way valve connected in said tubular conduit, said one way valve permitting flow only from said reservoir to said holding chamber; and

    an air vent in fluid flow communication with said holding chamber.

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