What is the correct way to use a blood collection needle?

When you go to the hospital for a blood test, you need to have your blood drawn. Secondly, when people go to donate blood, a lot of blood will be drawn. Now there are blood collection stations in many places in the city, so many people have donated blood. Now there is a very convenient spring-type blood collection needle. This blood collection needle is very simple to use and can greatly reduce the pain. So how do you use the blood collection needle correctly to collect blood?

How to use the blood collection needle?

A lancet is a medical instrument used for drawing blood. There are many types of blood collection needles now. Many people are afraid of having their blood drawn, not only because it hurts, but also because it may cause infection. In order to reduce the pain of patients, blood collection needles are also constantly developing. The spring-loaded blood collection needle is a commonly used blood collection needle nowadays. It can pierce the skin quickly when drawing blood and pull the pillow back quickly. This will neither be painful nor prone to infection. How to use the spring-loaded blood collection needle?

How to use the spring blood collection needle

Schlei disposable blood collection needle

The spring blood collection needle consists of a needle and a needle rod. The needle is arranged at the head of the needle rod, and a sheath is slidably connected to the needle rod. A reset spring is arranged between the sheath and the needle rod, and the initial position of the sheath is located at the head of the needle and the needle rod. When the operator holds the needle tube and presses the head of the lancet onto the patient's blood collection site, the sheath will retract under the elastic force of the skin, and the needle will protrude and pierce the skin. When the lancet is pulled out, the sheath will reset under the action of the reset spring, and then protect the needle to prevent the needle from being exposed and contaminated or accidentally stabbing the human body. When the blood collection needle is removed, the cavity surrounded by the needle tube and the skin gradually expands, forming an instantaneous negative pressure, which is conducive to the collection of blood samples.

How to use the spring blood collection needle

1. Wash and dry your hands thoroughly first. Warm and massage your fingers to increase blood circulation. Let your arms hang briefly down to allow blood to flow to your fingertips.

2. Open the protective cap with one or both hands

3. Place the end of the blood collection needle on the selected blood collection site, press the interphalangeal joint where blood is to be collected with your thumb, and then press to fire.

4. Place the used blood collection needle in a waste container.