Set of valve for use with a syringe and which prevents the contrafluxo

摘要

"Set of valve for use with a syringe and which prevents the contrafluxo".The set of a single use valve may be attached to the end of a syringe to allow the fluid to flow from the syringe into a body cavity, but prevents contrafluxo.The set of valve is opened by insertion of the tip luer syringe in the set of entry. The valve has an elastic member that forms an internal compartment internal variable volume.This compartment expands on the insertion of the luer tip at the entrance and shrinks when the luer tip is removed from the unit.The action of shrinkage creates a positive pressure in the valve unit to prevent the contrafluxo.