Blood Collection Needles Are Classified According To The Environment And Requirements Of Use

According to the environment and requirements of use, blood sampling needles are divided into:

1. Subcutaneous peripheral blood sampling needle: the main three-sided needle, metal solid core needle; puncture the peripheral skin or the skin of the baby's foot to obtain a small amount of blood. Perform blood cell and biochemical, histology, microbiology, virology, and genetic testing; it has a wide range of uses. With the popularization of modern testing instruments and methods. It will be widely used in countries, and will gradually replace most of the testing items for venous blood sampling.

2. Venous blood sampling needle: In an interventional way, a channel between human veins and the outside world is established, and then a negative pressure blood sampling container is used to collect blood samples (different test items can use different specifications of negative pressure collection containers-the internal pre Various additives are provided to complete the pre-treatment of specimens); such as anticoagulation, rapid coagulation, etc.; this type of blood sampling needle can be divided into two categories: pen blood sampling needle and split blood sampling needle according to the structure; Pen needles are mainly used, while split type is mainly used in mainland China.

3. Arterial blood sampling needle: Strictly speaking, it is an arterial puncture, arterial blood container and its sealing device completed in a closed environment; from the structural point of view, it is a complete syringe with a sealant block, which is quickly collected after collection. Close the puncture needle; keep the other dissolved contents in the arterial blood unchanged. As a blood gas analysis, understand the cardiopulmonary function.

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