Operating Specifications for Wrist Joint Puncture Model

The wrist joint puncture model is a simulation teaching tool used for clinical skills training, mainly to help learners master the basic methods and key operation points of wrist joint cavity puncture. Its appearance is designed in accordance with the true proportion of the human body, marked with clear anatomical landmarks such as the radial styloid process, ulnar styloid process and joint space. It also adopts soft skin materials and internal joint cavity structures, making the operation process closer to clinical reality.

In terms of operation norms, trainees should first make preparations before puncture, including verifying the operation object, choosing the appropriate needle, and strictly adhering to hand hygiene and aseptic operation. During the puncture, the model's wrist should be kept slightly with the palm facing down or slightly extended back, and the joint space should be accurately located based on the anatomical landmarks. The commonly used needle insertion point is located between the radial and ulnar styloid processes, and it is slowly inserted along the plane of the joint space. The interior of the model is designed with realistic resistance and a sense of cavity, which can help the operator experience the feeling of piercing into the joint cavity.

After completing the puncture simulation, fluid aspiration or injection practice is also required. Local compression and disinfection should be carried out after needle removal to keep the puncture site clean. Through repeated training, learners can master the essentials of wrist joint puncture in a risk-free environment, improving the proficiency and safety of the operation. The application of this model not only enhances the teaching effect but also lays a solid foundation for clinical practice.