The Significance Of Anesthesia Puncture Needle Catheterization

Local anesthetics are injected into the subarachnoid space to block the spinal nerve roots, called subarachnoid block anesthesia, or spinal anesthesia or lumbar anesthesia for short. In the case of sitting puncture, local anesthetics with heavy gravity are injected into the subarachnoid space to block only the 3rd, 4th and 5th sacral nerves, that is, the anesthesia scope is limited to the anal perineal region, which is called sellar region anesthesia, or sellar anesthesia for short.