The main methods of application of local anesthetics are as follows:

(1) Topical anesthesia is also called mucosal anesthesia, that is, the liquid is directly dripped, smeared, sprayed or stuffed on the surface of the mucosa (conjunctiva, cornea, nasal mucosa, oral mucosa, rectal and reproductive tract mucosa, etc.), so that it can penetrate the mucosa. The submucosal sensory nerve endings are anesthetized. Generally, local anesthetics with strong penetrating power, such as tetracaine and lidocaine, are selected.

(2) Infiltration anesthesia: The anesthetic is injected into the subcutaneous and deep tissues along the surgical incision line to anesthetize the nerve endings in these tissues and block the conduction of pain stimuli to the center. This method is most commonly used in surgery. Generally, the needle is inserted to the desired depth, and then the liquid is injected while withdrawing the needle. According to the needs of surgery, methods such as linear infiltration, diamond infiltration, fan-shaped infiltration, basal infiltration and layered infiltration can be selected.

(3) Conduction anesthesia, also known as block anesthesia or nerve trunk anesthesia, injects the liquid medicine around the nerve trunk that innervates a certain area, temporarily blocks the conduction function of the nerve trunk, and makes the innervated area lose the pain sensation and produce anesthesia. This method uses a small amount of anesthetic to produce anesthesia in a larger area. It is mostly used for limb surgery, diagnosis and abdominal wall surgery.

(4) Spinal anesthesia Spinal anesthesia is the general term for epidural anesthesia and subarachnoid anesthesia. Due to the diffusion of the local anesthetic in the spinal canal, the conduction of nerve impulses in a specific area is temporarily blocked, and the upward impulse to the central nervous system is also blocked, so anesthesia is achieved in the corresponding area, and the skeletal muscles also produce good relaxation. effect. Mainly anesthetize the hindquarters, clinically used for dystocia, caesarean section and other operations on the hindquarters. Epidural anesthesia is the injection of liquid medicine into the epidural space between the sacral tail or between the lumbar sacral vertebrae to anesthetize the spinal nerve roots. Subarachnoid anesthesia (spinal anesthesia or spinal anesthesia) is the injection of liquid medicine into the subarachnoid space in the depression between the lumbar and sacral vertebrae (Baihui point) to block the conduction of the spinal nerve roots.

(5) Occlusion therapy is to inject 0.25% to 0.5% salt procaine solution into each layer of tissue around the local inflammation, injury lesions or above the lesions of the limbs, and can also be slowly injected into the vein to block the lesions. The bad stimuli of the upper part are transmitted to the center, which can relieve pain, relieve symptoms and improve neurotrophy. Mainly used for chronic wounds, burns, cellulitis and colic, arthritis, rheumatism and other diseases.

If you have any questions, please contact us. Our company can produce various customized needles, medical needles, puncture needles, hypodermic needles, biopsy needles, vaccine needles, injection needles, syringe needles, veterinary needles, pencil point needle, ovum pick up needles, spinal needles, etc. If you need customized needle products, please contact us. We look forward to your inquiry! The quality of the products manufactured in our factory will surely satisfy you!

Please contact us if you need: zhang@sz-manners.com