The specific process of puncture needle for combined spinal-epidural anesthesia

First of all, you need to have spinal anesthesia technique, not to mention disinfection and drape, there are 2 types of a-needle and b2-needle puncture.

1. Intra-needle acupuncture method: first pass the epidural needle without placing the epidural catheter, then pass the thin lumbar puncture needle through the epidural needle to see the cerebrospinal fluid coming out, give the medicine for spinal anesthesia, and then quickly dural External tube

2.2 Needle method is to do epidural and spinal anesthesia (different intervertebral spaces) respectively. The epidural puncture point is higher than the lumbar puncture point, so do the epidural first.

It's no use if you don't have a spinal canal puncture.

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