What Is Blood Collection Needle

The venous lancet is a lancet used to collect blood samples in the medical examination process. The blood collection needle at the top is used to puncture the blood vessel, and the tail end is connected to the tail needle with a transparent tube. The tail needle is wrapped by a rubber hose and covered with a needle cap. It is used to pierce the vacuum blood collection test tube, and the negative pressure in the test tube is used to inhale blood. Inside the tube.

Venous blood collection needles are mainly disposable vacuum venous blood collection devices, which are used to collect blood samples during medical examinations. The venous blood collection needle is composed of a needle holder, a connector, a puncture needle, and a rubber part.

The vacuum blood collection tube is its main component and is mainly used for the collection and preservation of blood samples. The vacuum blood collection tube is preset with a certain amount of negative pressure during the production process. When the blood collection needle punctures into the blood vessel, the blood automatically flows into the blood collection tube due to the negative pressure in the blood collection tube; at the same time, various additives are preset in the blood collection tube. It can meet the clinical multiple comprehensive blood tests.