The venipuncture and infusion arm model is a widely used simulation training device in medical and nursing teaching. Its main function is to help learners master basic nursing skills such as venipuncture, infusion and blood collection. This model is made according to the real proportion and structure of the human upper limb, equipped with accessible vein routes and skin layers. It can simulate the resistance of needle insertion and the phenomenon of blood return, allowing trainees to repeatedly practice in a risk-free environment and improve the accuracy and proficiency of the operation.

Through the training of this model, learners can systematically master key steps such as the selection of puncture sites, the Angle of needle insertion, the fixation of needles, the connection of infusion pipelines and the observation of blood return, and cultivate standardized operation habits. Meanwhile, the simulated circulatory system of the model can be reused, which is convenient for teachers to conduct demonstrations and evaluations. The application of the venipuncture infusion arm model not only enhances the intuitiveness and practicality of teaching, but also effectively reduces the tension and mistakes of trainees in clinical practice, providing safer nursing services for patients. It has significant application value in nursing teaching, vocational skills training and clinical assessment.