Introduction: The puncture arm has a real texture, and the skin and blood vessels are made of flexible and acupuncture-resistant materials. Disturbing the artery can pulsate spontaneously, and touching the skin of the piercing arm can feel the real radial artery pulsation. When the puncture is successful, the simulated blood can be ejected and the syringe plunger is pushed up. Equipped with a mechanical rotation device, which can remove the damaged blood vessel from the puncture