The operation principle and standards of the cardiopulmonary resuscitation (CPR) model mainly rely on high-fidelity simulation technology to help trainees master the correct steps and techniques of CPR. This model is designed based on human anatomy and physiological characteristics and can truly reproduce the thorax, airways and circulatory responses. The core principle is to detect the position, depth, frequency and relaxation degree of compression through a mechanical sensing and feedback system, and simulate the effect of airway opening and lung inflation in the artificial respiration process, thereby achieving scientific and visual training.

In terms of operational standards, cardiopulmonary resuscitation should strictly follow international guidelines. First, assess the patient's consciousness and breathing. If the patient shows no response, immediately call for help and activate the emergency rescue system. Subsequently, quickly assess carotid artery pulsation and initiate external chest compressions if necessary. The standard compression requirement is to place the roots of both palms on the middle and lower part of the sternum, maintaining a frequency of 100 to 120 times per minute, with a depth of approximately 5 centimeters for adults. For newborns and children, the depth should be adjusted according to their body type. After each compression, it is necessary to ensure that the thorax fully rebounds to facilitate blood circulation. During the artificial respiration process, it is necessary to keep the airway open to ensure that the breathing gas enters the lungs. Usually, a 30:2 compression to breathing ratio is adopted.

Through repeated practice of the cardiopulmonary resuscitation model, trainees can not only correct incorrect operations but also form muscle memory, improving their reaction speed and operational accuracy in real first aid situations. The standardized training value of this model lies in enhancing the success rate of first aid and ensuring patients' life safety. It is an important tool for modern medical education and clinical first aid training.