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US 9,517,324 B2Granted
Extendable intravenous catheter
AssigneeThe Board of Trustees of the University of Illinois
InventorGirish G. Deshpande
Life of this patent
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Abstract
An intravenous catheter has a tip portion, an extendable portion and a proximal portion attached to a hub. The extendable portion has a refracted position and an extended position. A wire may be incorporated in the intravenous portion. The wire may have a receiver disposed in the tip portion. An extender tool is insertable and removable from the catheter. The extender is dimensioned to engage the receiver upon insertion into said catheter and lengthen the extendable portion of said catheter to said extended position when inserted.
Claims17
An intravenous catheter comprising:
- a hub;
- a tip portion comprising an opening;
- a proximal portion attached to the hub;
- and
- an extendable portion disposed between the proximal portion and the tip portion, the extendable portion having a retracted position and an extended position and comprising a wire incorporated therein and anchored to the hub, the wire comprising a coiled portion,
- wherein the extendable portion is configured to be extended from the retracted position to the extended position by an extender tool and to retain the extended position after removal of the extender tool, the extender tool being insertable and removable from the catheter and dimensioned for passing through the hub, the proximal portion, and the extendable portion but not through the opening in the tip portion.
3 more elements
A kit comprising:
- an intravenous catheter, comprising:
- a hub;
- a tip portion comprising an opening;
- a proximal portion attached to the hub;
- an extendable portion disposed between the proximal portion and the tip portion and comprising a wire incorporated therein and anchored to the hub, the wire comprising a coiled portion and supporting maintenance of an intravenous portion of the catheter in the extended position, the extendable portion having a first position and a second position, wherein the first position is short relative to the second position;
- and
- an extender tool that is removably insertable into the catheter and is dimensioned for passing through the hub, the proximal portion, and the extendable portion but not through the opening,
- wherein pressure exerted by the extender tool on a receiver of the catheter transitions the catheter from the first position to the second position and the catheter maintains the second position after subsequent removal of the extender tool from the catheter.
5 more elements
Dependencies are inferred from the claim text.