Method and apparatus for facilitating injection of medication into an intravenous fluid line while maintaining sterility of infused fluids
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Abstract
A warming device for an IV fluid line according to the present invention includes a warmer unit and a wye type fitting with an injection site. The warmer unit includes a tube for intravenous fluid and channels containing a warming fluid to heat the IV tube. One fitting branch is connected to an intravenous fluid source, while the remaining branch houses the injection site. The injection site branch includes an injection safety member that ensures a syringe needle or other instrument is contained within the fitting to prevent rupture of the IV tube. The warming device may include an additional wye type fitting coupled to the initial fitting and including another injection site, where the fittings typically exclude the safety member. A syringe needle is inserted into the additional injection site to prevent rupture of the IV tube. In addition, the warming device may be configured for needleless injections.
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Citations
31 Claims
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1-7. -7. (canceled)
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8. An infusion system to deliver intravenous fluid from a supply source to an infusion site via a fluid line and to enable injection of medicinal fluid into said fluid line while maintaining sterility of said intravenous fluid, said system comprising:
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a heat transfer unit including first and second conduits, wherein said first conduit receives said intravenous fluid and is connected with a fluid line portion extending toward said infusion site and said second conduit receives heat transfer fluid to heat said intravenous fluid flowing through said first conduit; and
a fluid connector assembly to facilitate fluid flow between said supply source and said heat transfer unit and including an entry site to facilitate needleless injection of said medicinal fluid into said fluid connector assembly via an instrument to prevent rupture of said conduits during said injection. - View Dependent Claims (9, 10, 11, 12, 13)
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14-20. -20. (canceled)
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21. In an infusion system to deliver intravenous fluid from a supply source to an infusion site via a fluid line including a heat transfer unit including first and second conduits, wherein said first conduit receives said intravenous fluid and said second conduit receives heat transfer fluid to heat said intravenous fluid, and a fluid connector assembly to facilitate fluid flow between said supply source and said heat transfer unit, a method of injecting medicinal fluid into said fluid line while maintaining sterility of said intravenous fluid comprising the steps of:
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(a) receiving an instrument within an entry site of said fluid connector assembly; and
(b) facilitating needleless injection of said medicinal fluid into said fluid connector assembly by said received instrument to prevent rupture of said conduits during said injection. - View Dependent Claims (22, 23, 24, 25, 26)
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27-29. -29. (canceled)
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30. An infusion system to deliver intravenous fluid from a supply source to an infusion site via a fluid line and to enable injection of medicinal fluid into said fluid line while maintaining sterility of said intravenous fluid, said system comprising:
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heating means for heating said intravenous fluid and including first and second conduits, wherein said first conduit receives said intravenous fluid and is connected with a fluid line portion extending toward said infusion site and said second conduit receives heat transfer fluid to heat said intravenous fluid flowing through said first conduit; and
fluid connection means for facilitating fluid flow between said supply source and said heating means and including entry means for facilitating needleless injection of said medicinal fluid into said fluid connection means via an instrument to prevent rupture of said conduits during said injection. - View Dependent Claims (31)
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Specification