Patent attributes
A vascular access system for preventing needle sticks includes a needle, a tip shield, and a housing. The needle may be a hypodermic needle or other conventional needle having a needle shaft terminating at a needle tip. The tip shield provides an enclosure defining a chamber. The enclosure includes a closed distal end and a proximal end that slidably engages the needle shaft. The enclosure further includes at least one side wall configured to slidably engage the needle shaft. The housing defines a passageway with respective proximal and distal openings through which the needle extends. The tip shield is also disposed in the passageway and is releasably retained therein. The needle and/or the tip shield is adapted to prevent the needle shaft from being completely withdrawn from the tip shield. The tip shield further secures the needle tip in the chamber upon withdrawal of the needle tip into the chamber.
