Intravenous access: a comparison of two methods.
The reliability in providing a continued venous route to the circulation is compared between a winged needle (Abbott "Butterfly--23 INT") and a plastic catheter (Jelco Teflon "Catheter Placement Unit", 22 gauge). The catheter remained within the vein in all cases and had a much lower incidence of total obstruction during the study period. Where an intravenous infusion is not in place, a plastic catheter provides a more reliable access route to the circulation than does a winged needle.
D000029:Abortion, Legal; D000776:Anesthesiology / Q000295:instrumentation*; D002408:Catheters, Indwelling; D005260:Female; D006801:Humans; D007263:Infusions, Parenteral / Q000379:methods*; D009339:Needles; D011247:Pregnancy; D011897:Random Allocation