1. The waist 1 and the waist 2 are naked and easy to observe the shape of the spine.
2. Waist 3 - Waist 5 is a functional position with obvious body surface markings for easy identification.
3. The following operations can be performed: spinal anesthesia; epidural anesthesia; anesthesia of the appendix.
4. There is a sense of blockage when the needle is inserted. Once injected into the relevant area, there will be a sense of fall and simulate cerebrospinal fluid outflow.
5. Simulator can be vertical and horizontal puncture.
