The upper arm intramuscular injection model (with detection and warning system) is mainly used by medical students, nurses and clinical trainees to practice intramuscular injection operations. The model is designed based on the anatomical structure of the upper arm muscles of the human body, featuring deltoid and surrounding tissue layers, and can truly simulate the resistance and feel during injection. Its unique detection and warning system can provide real-time feedback on whether the injection site, needle depth and Angle are correct. When the operation deviates from the standard, it will remind the trainees through sound and light prompts to help correct incorrect operations in a timely manner.

Through this model, learners can master conventional intramuscular injection, drug dosage control, disinfection and fixation techniques, and cultivate precise and safe operation habits. The model can be reused, reducing the risk for beginners to operate directly on patients, while also supporting teachers in observing and evaluating the skills of trainees. It is applicable to nursing colleges, hospital training centers and skills assessment scenarios, and is an important teaching tool for enhancing the standardization of injection operations and the self-correction ability of trainees.