The principle of the advanced arterial puncture arm model

The advanced arterial puncture arm model is a simulation teaching device specifically designed for medical staff and students to conduct arterial blood collection and arterial catheterization operation training. Its design principle is mainly based on the anatomical structure of the human upper limb. It is equipped with a simulated arterial vascular system inside, which simulates the texture and resilience of blood vessels through elastic materials. Combined with an artificial circulation device, it enables trainees to obtain a feel and feedback similar to real operation during puncture.

The arterial vessels of this model are connected to an external fluid storage device. When the needle correctly enters the vascular cavity, there will be a distinct blood return phenomenon, which helps trainees determine whether the puncture is successful. Meanwhile, the position of the blood vessels is fixed reasonably, and their depth and diameter are close to the actual clinical situation, which is convenient for repeated practice. Some high-end models also feature replaceable vascular components, which extend the model's service life and support multiple punctures without easy damage.

Through this model, trainees can intuitively understand the anatomical structure of arteries and key points of puncture, and master key skills such as aseptic operation, puncture Angle, fixation and blood collection. During the training process, the model can help trainees correct common mistakes, such as too deep puncture, improper Angle or failure to judge blood return in time.

The application principle of this model not only enhances hands-on ability and operational proficiency, but also provides an effective guarantee for the safety and standardization of clinical arterial puncture.