What is the procedure of lumbar puncture needle

The main steps of lumbar puncture needle are as follows:
1. Contraindications of this kind of puncture should be excluded first. This type of puncture should not be performed if the patient has cranial hypertension, cerebral hernia, shock, or local infection.
2. The puncture point should be determined. Generally, the point of intersection between the line of the highest point of the iliac crest and the posterior median line was taken as the puncture point.
3, to assist the patient to position, generally require the patient to take the lateral position, and then bend the hip, bend the knee, excessive neck flexion, hands holding the knee, completely exposed to the waist, to carry out disinfection towel.
4. Layer by layer infiltration anesthesia should be performed on the puncture site.
5. Use the puncture needle to slowly enter the needle until the needle feels disappointed, then pull out the needle core and see cerebrospinal fluid dripping out. At this time, the pressure of cerebrospinal fluid should be measured quickly and the cerebrospinal fluid should be retained for relevant examination. After that, the needle was slowly pulled out, the puncture site was covered with gauze and fixed with adhesive tape, and the patient was required to lie supine for more than six hours.