Pen Type Blood Drawing Needles

When the pen blood drawing needle is used, the needle is rotated and fixed in the front end of the outer cylinder of the needle holder, and intravenous puncture is performed. After success, the vacuum blood collection tube is inserted into the cavity at the back end of the needle holder, and the edge of the back end of the blood drawing needle is inserted through the blood blocking sleeve and the rubber plug of the vacuum tube. Under the action of negative pressure, blood is pumped into the blood collection tube. In this way, the collection of blood samples in multiple tubes can be realized. After blood collection is completed, the venous puncture needle is pulled out for local hemostatic. For the discarded blood drawing needle, the nurse needs to put the sheath of the front end of the needle again on the surface of the blood drawing needle, then rotate the needle body, remove the blood drawing needle from the needle holder, and discard the blood drawing needle in the waste box. Before use, please check the tip of the venous puncture needle. Do not use it if there are barbs, burrs, deformations and other defects.