Why is the needle of the operating room so thick?

When many patients enter the operating room waiting for surgery and wait, there will be a question: Why do I have to pierce a separate acupuncture needle that is different from the color of the ward for surgery?

In fact, this is a problem that plagues many patients. First of all, we understand some concepts:

What is "vein kernel needle"?

Answer: Intravenous apartment, also known as "sleeve needle", and some areas are called "duct acupuncture". It is a vascular pathway device with better clinical infusion. On the one hand It is suitable for patients of all ages in long -term infusion.

The color of the venous kernel needle is "good -looking at your heart" or is there a model of international standards?

Answer: The color of the venous kernel needle has international standard models. Regardless of the venous kernels produced in any manufacturer around the world, the "principle of distinguishing models through color distinguishing models" must be default. Common model color control forms are as follows:

Internationally, the difference between the default venous album needle type is distinguished by even numbers as the adjacent model. The smaller the number, the thicker the diameter of the intravenous needle. The opposite.

According to the "2016 INS Infusion Treatment Practice Standard": It should be selected with the smallest vascular pathway device with the smallest outer diameter and the smallest number of lumen.

The popular translation of this sentence is: Under the premise of satisfying the treatment, the selection of the most fine vein needle acupuncture of the pipe diameter is performed to the patient for infusion treatment, which has the smallest harm to the patient.

So, why should we return to the patient's question, in the operating room, usually re -enters a dependent veins with different colors of the ward for patients who are about to surgery? Taking the hospital where the author is located as an example, in the intravenous treatment of patients of different ages, the ward usually chooses the following three models and color venous kernel needles. Theoretically, the color of the venous -separation needle color, the laboratory rate and clinical application of the infusion are as follows as follows. surface:

Surgery belongs to the treatment status in a special case. Varicular infusion, blood transfusion, and rapid replenishment of treatment content may occur during patients. The requirements for venous separation needles and vascular pathways are not only unobstructed by the ward infusion therapy, but also requires sufficient infusion flow rate to ensure the rate requirements of a large amount of liquid or blood products in a short period of time.

Therefore, teachers who enter the surgery waiting area, the operating room or anesthesi department usually re -keeps a thicker diameter than the ward pipe and meet the needs of surgical needs to ensure that patients may need infusion and blood transfusion in the patient surgery. The treatment function to ensure the safety of the patient's surgery.

As a patient, I hope you can dispel your concerns and get your understanding after seeing this article.

Author: Wang Jianxu, anesthesiology center of Beijing Anzhen Hospital

[Reminder] Pay attention, there are a large number of professional science sciences here to reveal those things about surgical anesthesia ~

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