An Intravenous Indwelling Needle Is An Infusion Device

An intravenous indwelling needle is an infusion device,It is composed of a stainless steel heart, a soft outer cannula and a plastic needle holder. During puncture, the outer cannula and the needle core are inserted into the blood vessel. When the cannula is inserted into the blood vessel, the needle core is pulled out, and the soft outer cannula is left in the blood vessel to carry out infusion. Due to patients for a long time for infusion or intermittent or continuous infusion, intravenous indwelling needle can avoid repeated puncture and lead to the damage and complications, so now more clinical patients treated with indwelling needle in the hospital infusion, because skin pure steel needle applies only to short-term or a single dose of medication, but although venous indwelling needle can be retained for a long time, However, it is recommended to replace the new one after 3-5 days of burial, and change another site for puncture at the same time to avoid phlebitis or venous thrombosis.