Lumbar puncture needle procedure

The lumbar puncture needle should first exclude the contraindication of lumbar puncture. If appropriate for a lumbar puncture, the procedure is as follows:
First, to determine the position, the patient is generally required to take a lateral position, followed by extreme knee flexion and hip flexion, which can fully expose the waist and increase the lumbar vertebral space.
Secondly, the puncture point was selected. Generally, the intersection point between the highest point of the bilateral iliac spine and the posterior median was taken as the puncture point.
Third, the puncture site was anesthetized layer by layer.
Fourth, with the puncture needle slowly into the needle, until the pillow has an obvious sense of frustration, at this time you can pull out the needle core, you can see the outflow of cerebrospinal fluid, outflow of cerebrospinal fluid, obtain the right amount of cerebrospinal fluid, and then remove the puncture needle, gauze bandage, and then ask the patient to supine for more than six hours.