Intravascular puncture needle with automatic anti-reflux mechanism blood

摘要

The mechanism is composed of a part (3), urged by a spring means towards a position of closure of the passage (6) Cannula PLASTICA (2), A WHOSE POSITION ACCESSED AUTOMATICALLY TO BE REMOVED FROM SUCH STEP NEEDLE (4) lancing OF BLOOD VESSEL. CONNECTOR (5) EQUIPMENT WHEY, PERFORMING AUTOMATIC OPENING PITCH (6) when makes the connection of such equipment. MECHANISM APPLICABLE IN PUNCTURE Intravascular cannulas to prevent backflow BLOOD PATIENT CONTACT OPERATOR IN PREVENTING AND contagions order not to compromise the sterility of the material used.