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US 2010/0249726 A1Published application
Trocarless intravenous cannula with a multifilament tip
AssigneeKing Saud University
InventorAbdullah K. Al-Rasheed
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Abstract
A trocarless intravenous cannula with a multifilament tip is described. The trocarless intravenous cannula has a tapered, distal multifilament tip that is comprised of a plurality of individual filaments. In one aspect, the distal part of the cannula is fenestrated. The tip and the distal part of the cannula may both be covered in a dry, water-soluble coating.
Claims15
A trocarless intravenous cannula comprising:
- a cannula with a multifilament tip on a distal portion of the trocarless intravenous cannula, the multifilament tip being tapered to pierce skin, soft tissue, and vessel walls for cannulation of the trocarless intravenous cannula independent of a trocar, the multifilament tip comprising a plurality of individual filaments;
- and
- a water-soluble coating covering the multifilament tip.
A method comprising:
- performing a venipuncture procedure using a trocarless intravenous cannula by:
- inserting a distal end of the trocarless intravenous cannula with a multifilament tip into a vessel of a patient, wherein the distal end of the trocarless intravenous cannula tapers to the multifilament tip, the multifilament tip comprising a plurality of individual filaments, and a water- soluble resin or coating covering the tip;
- waiting for the water-soluble coating to dissolve;
- and
- proceeding, after dissolution of the water-soluble coating, with a health care protocol procedure that utilizes the trocarless intravenous cannula as inserted into the patient.
2 more elements
An intravenous cannula comprising:
- a tapering distal end;
- a fluid-permeable portion on the distal end of the intravenous cannula;
- a water-soluble covering on the tapering distal end;
- and
- a passageway for a trocar with a tapering distal end.
2 more elements
Dependencies are inferred from the claim text.