The arm venipuncture training model is an important teaching tool for nursing and medical training. Its operation norms are directly related to the accuracy and safety of trainees' skill mastery.

Before operation, it is necessary to first check the integrity of the model to ensure that the skin, venous ducts and circulatory system are in a normal state, and prepare items such as syringes, tourniquets, sterilized cotton balls and simulated blood. When performing the operation, first explain the purpose of the operation to the "patient", then tie the tourniquet around the upper arm and select an appropriate venipuncture point. After routine skin disinfection, the needle is inserted at an appropriate Angle with the inclined side facing upwards into the model venous pipeline. Once blood is returned, the tourniquet is released and fixed.

After the operation is completed, it is necessary to simulate the steps of needle removal, pressure to stop bleeding, and application, while maintaining the aseptic principle and standard procedure of the operation process. After use, the equipment should be cleaned up in time, the simulated blood drained, and the surface of the model wiped and maintained to extend its service life. This training model not only helps trainees repeatedly practice venipuncture skills, but also cultivates their comprehensive abilities of standardized operation, effective communication and attention to patient safety in clinical practice.