Anesthesia needle methods are mainly divided into

It mainly includes general anesthesia, local anesthesia and compound anesthesia. It is divided into inhalation anesthesia, intravenous anesthesia and basic anesthesia according to the route of anesthesia into the human body. Basic anesthesia is the intramuscular injection of certain general anesthetics (commonly used sodium thiopental and ketamine) to make the patient sleep, and then perform anesthesia surgery. Local anesthesia is the use of local anesthetics such as procaine, lidocaine, etc. to temporarily lose sensation in a certain part of the body. Commonly used methods include spinal anesthesia (block), nerve block, regional block, local infiltration anesthesia, and topical anesthesia. Spinal anesthesia is the injection of local anesthetics into the spinal canal through spinal puncture. The injection into the subarachnoid space is called subarachnoid block or spinal anesthesia, and the injection into the epidural space is called epidural Cavity block. Nerve block is the injection of a local anesthetic into a nerve trunk (plexus) in the body to block pain conduction in the area it innervates. Commonly used nerve blocks include cervical plexus block and brachial plexus block. Regional block is the injection of local anesthetic around the surgical site to block the nerve endings in the surgical area to achieve the purpose of anesthesia. Local infiltration anesthesia is the direct injection of local anesthetics into the surgical site and evenly distributed to all layers of tissue in the entire surgical area to block the conduction of pain. It is a commonly used anesthesia method for minor clinical operations. Topical anesthesia is the spraying or coating of a local anesthetic with strong permeability on the mucosa, conjunctiva and other surfaces to produce anesthesia. Compound anesthesia is the simultaneous or successive application of two or more anesthetics, adjuvant drugs (such as analgesics, tranquilizers, etc.) or anesthesia methods, so that they can complement each other to enhance the effect of anesthesia and protect the patient. safety, and to meet the special requirements of certain procedures. The choice of anesthesia method should be based on the condition and surgical needs, the indications and contraindications of the anesthesia method.

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