Indwelling vein catheter with concentric puncture needle

摘要

An indwelling vein catheter assembly with concentric puncture needle and wing-like, laterally extending, flexible elements tangentially attached to the catheter body; these wing-like elements can be folded around the catheter body to form angularly offset gripping and guide means which assume safe and smooth insertion of the catheter into a vein, and in the unfolded position provide support and steadying means for the inserted catheter.