The advanced intradermal injection model simulation exercise for the arm is a practical training tool specially designed for nursing and clinical teaching. It can truly reproduce the anatomical structure and skin texture of the human arm, and is particularly suitable for intradermal injection technique training.

Before the drill, trainees need to prepare syringes, water for injection or simulated liquid medicine, alcohol cotton balls and other items, and check the integrity of the skin area of the model. During the operation, the identity of the "patient" should be confirmed and the operation explained first, and then the appropriate area on the inner side of the forearm should be selected for routine skin disinfection.

Then, the trainee holds a syringe, with the tip of the needle at an Angle of 5 to 15 degrees to the skin and the tip's slope facing upwards. Slowly, the syringe is inserted into the epidermis, and a small amount of liquid is injected until a cuticle appears. After the injection is completed, remove the needle and gently press the needle hole without rubbing to ensure local absorption of the liquid medicine. After the operation is completed, the needles and waste should be properly disposed of, and the model should be cleaned and maintained.

Through repeated practice, trainees can not only master the standardized steps and key points of intradermal injection, but also improve the stability and proficiency of the operation, thus laying a solid foundation for clinical work.