The role of the closed limb fracture fixation training model lies in helping learners systematically master the initial first aid and fixation techniques after fractures, providing important training support for clinical nursing and pre-hospital emergency care.

This model is designed based on the anatomical structure and fracture characteristics of the human limbs and can simulate the common closed fractures of the upper and lower limbs. During the operation, trainees can practice on-site fracture assessment, limb reduction and protection, as well as the application methods of different fixation tools (such as splints, bandages, triangular bandages, etc.), thereby mastering the fixation position, fixation sequence and bandaging techniques. Models usually adopt simulation materials, which can simulate the flexibility of limbs and the touch of fractures, making the training closer to clinical reality.

Through repeated practice, trainees can understand the principles of fixation - such as fixing the upper and lower joints of fractures, maintaining the functional position of limbs and reducing secondary injuries, etc. This model is not only applicable to the skills training of medical staff and first aid trainees, but also can be used for public emergency education. It is of great significance in enhancing the ability to deal with trauma emergencies, ensuring the safe transfer and further treatment of patients.