In order not to feel pain and aches during surgical operations, which are necessary for the treatment of health problems, anesthetization, that is, anesthesia, is applied before the operation. Anesthesia is the general name of all types of numbing and the word meaning is numbness. It is a series of medical practices applied by physicians who are specialists in anesthesia and reanimation so that the patient does not feel pain during the operation. The type of anesthesia to be administered is finalized by the anesthesia and reanimation specialists, and it is given to the patient at the predicted rates with devices called anesthesia delivery system, and temporary closure of consciousness is provided.

While vital activities continue during the operation with anesthesia techniques that have been applied for approximately 150 years and are constantly developing, it is very important for both the patient and the physicians performing the operation to eliminate consciousness, reflex and sensation. Thanks to this application, which provides comfort to the patient during the surgery, the reflexes are suppressed and the muscle relaxation is provided, making the surgical intervention easier. It is also the specialty of the anesthesiologist to ensure the continuity of this situation during the operation and to wake the patient after the operation with the termination of anesthesia drugs.